ファクトブック 20202020年12月期
CONTENTS  目 次
Market Data(Price / Exchange Rate / Stock Markets)マーケットデータ（価格・為替・株式市場）
03Market Data (World)マーケットデータ（世界）
05Market Data (Japan) マーケットデータ（日本）
Market Dataマーケットデータ
08Profi tability Indices収益性指標
09Effi ciency Indices効率性指標
09Productivity Indices生産性指標
10Stability Indices安全性指標
11Performance Indices投資指標
12Reserves / Production Indices埋蔵量・生産量指標
Index Data (Consolidated) 指標データ（連結）
13Oil and Gas Reserves埋蔵量データ
20Oil and Gas Net Productionネット生産量データ
21Sales Volume販売量データ
22Business Investment / Others事業投資 / その他
Operating Data 事業データ
25Financial Data (Consolidated)財務データ（連結）
28Corporate Information会社情報
23Environment (Consolidated)環境（連結）
Health & Safety / Human Resources / Society /Corporate Governance労働安全・人材・社会・コーポレートガバナンス
ESG Data ESGデータ
INPEX CORPORATION Fact Book 202001
Market Dataマーケットデータ
Market Data (Price / Exchange Rate / Stock Markets)マーケットデータ（価格・為替・株式市場）
Crude oil price trend (ICE Brent / NYMEX WTI / CIF price in Japan)原油価格の推移（ICE Brent ／NYMEX WTI ／日本CIF価格）
LNG (CIF) price trend in JapanLNG（日本CIF）価格の推移
Steel products (steel plate) price trend in Japan日本の鋼材（厚板）価格の推移
Annual average各年平均値2006200720082009201020112012201320142015201620172018201920202021
ICE Brent ICE Brent66.0972.6898.3762.4980.25110.89111.70108.7699.5153.64 45.0454.8271.5364.1843.2163.39*
NYMEX WTI NYMEX WTI 66.2272.3199.6561.8079.5395.1294.2097.9793.0048.8043.3250.9564.7757.0339.40 60.08*
CIF price in Japan日本CIF価格63.9469.41101.9160.6779.19108.75114.79110.54105.0855.0041.6154.1872.7866.7947.1458.47**
Source: Petroleum Association of Japan (PAJ), etc.出典：石油連盟他
Annual average各年平均値2006200720082009201020112012201320142015201620172018201920202021
LNG (CIF) priceLNG (CIF)価格367.94399.67645.62471.12563.57765.82864.60834.64842.54537.25359.96416.63517.14515.68401.85*428.23
Source: Petroleum Association of Japan (PAJ)出典：石油連盟
Annual average各年平均値2006200720082009201020112012201320142015201620172018201920202021
Steel products (steel plate) price 
鋼材（厚板） 価格80,50081,000117,542102,16787,708 87,667 81,125 77,33382,00079,83374,542 78,41785,00085,20879,667 87,000* 
Source: Japan Metal Daily出典：日刊鉄鋼新聞
ICE Brent
NYMEX WTI 
CIF price in Japan  
日本CIF価格
（U.S.$/bbl米ドル／バレル）
(U.S.$/ton米ドル／トン）
Average of the high and low prices  高値・安値の平均値
（¥/ton円／トン）
50,000
100,000
150,000
*2021: From January to May *2021年は、1月から5月まで
*2021年は、1月から4月まで*2021: From January to April
* 2021年は、1月から5月まで** 2021年は、1月から4月まで* 2021: From January to May** 2021: From January to April
(¥/ton円／トン）
(U.S.$/ton米ドル／トン）
（U.S.$/bbl米ドル／バレル）
株式会社INPEX ファクトブック 202002
Exchange rate trend (Japanese yen against U.S. dollar)円の対米ドル為替レートの推移
Reference: INPEX’s share price performance vs. TOPIX (2009/4=100) 参考：株価パフォーマンス（対TOPIX、2009年4月=100）
2006200720082009201020112012201320142015201620172018201920202021
Average exchange rate
レート116.38117.84103.4693.5887.8179.8479.8397.65105.86121.05108.87112.19110.43109.06106.83107.21*
Source: Mizuho Bank出典：みずほ銀行
（¥/U.S.$円／米ドル）
2019/12021/12020/12006/12007/12008/12009/12010/12011/12012/12013/12014/12015/12016/12017/12018/1
ASX （オーストラリア）
Hang Seng （香港）
TOPIX （日本）
S&P 500 （アメリカ）
FTSE 100 （イギリス）
World stock markets (2006/1=100)世界の株式市場（2006年1月＝100）
201920212020
1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 54 5 6 7 8 9 101112
20092010201120122013201420152016201720180
300INPEX
*2021: From January to May*2021年は、1月から5月まで
（¥/U.S.$ 円／米ドル）
Market Dataマーケットデータ
INPEX CORPORATION Fact Book 202003
Market Dataマーケットデータ
Market Data (World)マーケットデータ（世界）
World oil and gas production世界の原油・天然ガス生産量の推移
(Thousand bbl/day千バレル／日）
202020192006200720082009201020110
25,000
50,000
75,000
100,000
2012201320142015201620172018
■ Crude oil (Left scale) 原油（左軸）■ Natural gas (Right scale)天然ガス（右軸）
 (Billion m3十億 m3）
88,391 94,961 94,852 92,568 91,989 91,632 88,834 86,670 86,255 84,042 83,293 81,491 83,115 82,438 82,561 
3,853.7 3,976.2 3,852.9 3,676.2 3,552.1 3,511.7 3,437.9 3,366.1 3,326.8 3,258.0 3,150.8 2,941.4 3,035.5 2,928.3 2,852.1 
World primary energy consumption 2020世界の一次エネルギー消費量2020年
World proved reserves by region and reserves to production ratio (RP ratio) (as the end of 2020)
世界の地域別確認埋蔵量と可採年数（2020年末時点）
RP ratio (Years)可採年数（年）48.8
Crude oil原油Natural gas天然ガス
Total合計556.6Exajoules 
百京ジュール
Total合計1,732.4Billion bbl
Total合計6,641.8 Trillion cf 
RP ratio (Years)可採年数（年）53.5
Source: BP “Statistical Review of World Energy 2021 70th edition”
出典：BP「Statistical Review of World Energy 2021 70th edition」
Oil石油173.731.2%
Natural gas天然ガス137.624.7%
Coal石炭151.427.2%
Nuclear power原子力24.04.3%
Hydroelectricity水力38.26.9%
Renewables再生可能エネルギー31.75.7%
Total合計556.6100.0%
Source: BP “Statistical Review of World Energy 2021 70th edition”
出典：BP「Statistical Review of World Energy 2021 70th edition」
（Exajoules  百京ジュール）
North America北米242.914.0%
Central, South America中南米323.418.7%
Europe欧州13.60.8%
CISCIS146.28.4%
Middle East中東 835.948.3%
Africaアフリカ125.17.2%
Asia Pacificアジア・太平洋45.22.6%
Total合計1,732.4100.0%
Source: BP “Statistical Review of World Energy 2021 70th edition”
出典：BP「Statistical Review of World Energy 2021 70th edition」
（Billion bbl  十億バレル）（%）
North America北米535.0 8.1%
Central, South America中南米278.9 4.2%
Europe欧州111.9 1.7%
CISCIS1,998.9 30.1%
Middle East中東 2,677.1 40.3%
Africaアフリカ455.2 6.9%
Asia Pacificアジア・太平洋584.8 8.8%
Total合計6,641.8 100.0%
Source: BP “Statistical Review of World Energy 2021 70th edition”
出典：BP「Statistical Review of World Energy 2021 70th edition」
（Trillion cf  兆cf）（%）
株式会社INPEX ファクトブック 202004
Volume of global trade (Crude oil) 世界の原油貿易量
Volume of global trade 2020 (LNG) 世界のLNG貿易量（2020年）
200620072008200920102011201220132014201520162017201820192020
Change 2020 over 2019*1
2019年から2020年への増加率*1
2020 share of total*1
2020年の全体に対する割合*1
Imports輸入
U.S.アメリカ13,612 13,632 12,872 11,453 11,689 11,338 10,587 9,859 9,241 9,451 10,056 10,148 9,943 9,142 7,863 (14.0%)12.1%
Europe欧州13,728 14,241 14,066 12,802 12,407 12,489 12,721 12,920 12,957 13,993 14,354 14,700 14,151 14,866 12,611 (15.2%)19.4%
China中国3,883 4,172 4,494 5,100 5,886 6,295 6,675 6,978 7,398 8,333 9,214 10,241 11,028 11,826 12,865 8.8%19.8%
Indiaインド2,613 2,924 3,066 3,491 3,749 3,823 4,168 4,370 4,155 4,380 4,945 4,920 5,196 5,394 5,030 (6.7%)7.7%
 Japan日本5,201 5,032 4,925 4,263 4,567 4,494 4,743 4,637 4,383 4,332 4,180 4,142 3,940 3,780 3,310 (12.4%)5.1%
Rest of Worldその他15,556 17,409 17,138 17,211 17,048 17,634 17,812 20,012 21,193 22,026 23,776 25,663 25,853 25,397 23,381 (7.9%)35.9%
Total World合計54,593 57,411 56,561 54,320 55,346 56,072 56,706 58,776 59,328 62,515 66,526 69,814 70,111 70,404 65,061 (7.6%)100.0%
Exports輸出
Canadaカナダ2,330 2,457 2,498 2,518 2,599 2,798 3,056 3,296 3,536 3,836 3,890 4,241 4,500 4,689 4,427 (5.6%)6.8%
Mexicoメキシコ2,102 1,975 1,609 1,449 1,539 1,487 1,366 1,347 1,293 1,323 1,380 1,290 1,316 1,272 1,252 (1.6%)1.9%
U.S.アメリカ1,317 1,439 1,967 1,947 2,154 2,495 2,682 3,563 4,033 4,521 5,078 5,888 7,041 8,095 8,117 0.3%12.5%Central, South America中南米3,681 3,570 3,616 3,748 3,568 3,755 3,830 3,790 3,939 4,107 4,147 3,958 3,739 3,463 3,455 (0.2%)5.3%
Europe欧州2,239 2,300 2,073 2,076 1,966 2,139 2,181 2,545 2,467 2,926 3,082 3,392 3,375 3,148 2,742 (12.9%)4.2%
Russiaロシア6,792 7,827 7,540 7,257 7,397 7,448 7,457 7,948 7,792 8,313 8,814 8,992 8,117 8,380 7,433 (11.3%)11.4%
Other CISその他CIS1,328 1,562 1,730 1,861 2,039 2,180 1,962 2,166 2,092 2,100 2,096 2,201 2,023 2,135 2,073 (2.9%)3.2%
Saudi Arabiaサウジアラビア8,307 8,101 8,357 7,276 7,595 8,120 8,468 8,365 7,911 7,968 8,606 8,404 8,581 8,474 8,027 (5.3%)12.3%
Middle East中東12,527 12,198 12,415 11,744 11,976 12,188 11,742 12,242 12,699 13,537 15,321 16,255 16,154 14,921 13,915 (6.7%)21.4%
North Africa*2北アフリカ *23,245 3,341 3,268 2,943 2,878 1,951 2,602 2,127 1,743 1,701 1,727 2,226 2,422 2,551 1,550 (39.2%)2.4%
West Africa*2西アフリカ *24,797 4,961 4,712 4,531 4,755 4,759 4,724 4,590 4,849 4,880 4,401 4,531 4,557 4,730 4,244 (10.3%)6.5%
Asia Pacifi cアジア・太平洋4,567 6,004 5,392 5,631 6,226 6,088 6,299 6,307 6,450 6,780 7,356 7,811 7,731 7,992 7,399 (7.4%)11.4%
Rest of Worldその他1,362 1,675 1,385 1,340 653 663 338 491 524 525 625 625 555 555 428 (22.8%)0.7%
Total World合計54,593 57,411 56,561 54,320 55,346 56,072 56,706 58,776 59,328 62,515 66,526 69,814 70,111 70,404 65,061 (7.6%)100.0%
From Export Countries輸出国
To Import Countries輸入国U.S.**
アメリカ**Peru
Trinidad & Tobago
トリニダード・
Other Americas**
アメリカ**Norway
Other Europe**
ヨーロッパ**
Russian Federation
連邦Oman
オマーン Qatar
連邦Yemen
イエメンAlgeria
アルジェリアAngola
アンゴラEgypt
エジプトNigeria
ナイジェリア
Other Africa
Australia
ラリアBrunei
Indonesia
ネシアMalaysia
Papua New Guinea
ニューギニア
Other Asia Pacifi c**
Total Imports
North America北米0.90.12.5*0.10.1̶̶̶̶̶̶̶̶0.40.10.1̶0.3̶̶̶4.6
Canadaカナダ̶̶0.8̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶0.8
Mexicoメキシコ0.90.10.6̶̶0.1̶̶̶̶̶̶̶̶0.20.10.1̶0.3̶̶̶2.5
U.S.アメリカ̶̶1.0*0.1̶̶̶̶̶̶̶̶̶0.2̶̶̶̶̶̶̶1.3
Central, South America中南米7.1̶4.20.40.1*0.1̶0.9̶̶0.10.1̶*0.70.1̶̶̶̶̶13.9
Argentinaアルゼンチン0.5̶0.3̶̶̶0.1̶0.9̶̶̶̶̶̶̶̶̶̶̶̶̶1.8
Brazilブラジル2.8̶0.40.1̶̶̶̶̶̶̶̶0.1̶*̶̶̶̶̶̶̶3.3
Chileチリ2.1̶0.7̶̶̶̶̶̶̶̶̶̶̶̶0.70.1̶̶̶̶̶3.7
Other countriesその他1.8̶2.80.30.1*̶̶̶̶̶0.1̶̶̶̶̶̶̶̶̶̶5.1
Europe & Eurasiaヨーロッパ・ユーラシア25.60.45.20.24.10.317.2̶30.2̶̶13.91.10.414.61.6̶̶̶̶̶̶114.8
Belgiumベルギー1.3̶̶̶*̶0.9̶2.8̶̶̶0.1̶̶̶̶̶̶̶̶̶5.1
Franceフランス2.60.10.5̶0.8̶5.0̶1.9̶̶4.30.2̶4.2̶̶̶̶̶̶̶19.6
Italyイタリア 2.1̶0.1̶̶*̶̶6.8̶̶2.8̶̶0.20.1̶̶̶̶̶̶12.1
Spainスペイン5.40.22.20.20.50.13.4̶3.1̶̶0.50.40.14.01.0̶̶̶̶̶̶20.9
Turkeyトルコ2.8̶0.6̶0.1̶0.2̶3.1̶̶5.70.10.11.80.3̶̶̶̶̶̶14.8
United Kingdomイギリス4.7̶1.0̶0.4̶2.9̶9.0̶̶*̶0.20.3̶̶̶̶̶̶̶18.6
Other EUその他EU6.70.10.9̶2.30.24.7̶3.5̶̶0.70.40.14.00.2̶̶̶̶̶̶23.7
Rest of Europe上記以外のヨーロッパ̶̶̶̶̶̶0.1̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶0.1
Middle East & Africa中東・アフリカ1.3̶0.9̶̶0.20.60.53.2̶̶0.10.50.11.50.2̶̶̶̶̶̶9.2
Egyptエジプト̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶
Kuwaitクウェート0.5̶̶̶̶0.2̶0.23.1̶̶0.10.40.11.00.2̶̶̶̶̶̶5.7
UAEアラブ首長国連邦0.3̶0.2̶̶̶0.30.3̶̶̶̶0.2̶0.3̶̶̶̶̶̶̶1.6
Other Middle East & Africa その他中東・アフリカ0.6̶0.7̶̶̶0.3̶0.1̶̶̶̶̶0.2̶̶̶̶̶̶̶1.9
Asia Pacifi cアジア・太平洋26.44.61.5*̶0.722.512.771.87.6̶0.94.41.311.92.5106.08.416.432.811.51.4345.4
China中国4.41.50.3*̶0.66.91.411.20.4̶0.20.50.23.30.740.61.07.48.34.11.194.0
Indiaインド3.3̶0.7̶̶0.20.71.814.14.8̶0.33.10.24.01.31.40.1̶̶̶̶35.8
Japan日本6.40.9̶̶̶̶8.43.311.91.4̶̶̶0.11.9̶39.75.43.014.84.70.2102.0
Malaysiaマレーシア̶̶̶̶̶̶̶̶̶̶̶̶̶̶0.1̶2.61.0̶̶̶̶3.6
Pakistanパキスタン1.0̶̶̶̶̶0.20.27.10.5̶0.40.10.40.6̶̶̶0.10.1̶̶10.6
Singaporeシンガポール0.8̶0.1̶̶̶0.10.20.5̶̶̶0.30.1̶0.13.20.10.4̶̶̶5.7
South Korea韓国8.02.20.1̶̶̶2.85.413.00.3̶̶0.50.10.50.310.90.43.76.70.40.155.3
Taiwan台湾1.5̶0.2̶̶̶3.30.16.90.3̶̶̶0.20.5̶6.70.31.61.02.2̶24.7
Thailandタイ0.7̶0.2̶̶̶̶0.23.0̶̶̶̶0.10.30.11.10.20.31.30.1̶7.5
Other Asia Pacifi cその他アジア・太平洋0.4̶̶̶̶̶0.1̶4.1̶̶0.1̶̶0.80.1̶̶̶0.6̶0.16.1
Total Exports輸出量合計61.45.014.30.54.31.340.413.2106.17.6̶15.06.11.828.45.1106.28.416.832.811.51.4487.9
出典: BP「Statistical Review of World Energy 2021 70th edition」*1  合計の年変化と全対比は、千バレル/日の数字を使用して計算している。*2  北アフリカ、西アフリカの輸出にはアフリカ諸国内の貿易量を除く。
出典: BP「Statistical Review of World Energy 2021 70th edition」* 0.05未満** 再輸出を含む。
Source: BP “Statistical Review of World Energy 2021 70th edition”*1  Annual changes and shares of total are calculated using thousand barrels daily figures.  *2  North and West African exports excludes intra-Africa trade.
Source: BP “Statistical Review of World Energy 2021 70th edition”* Less than 0.05** Includes re-exports
(Thousand bbl/day千バレル／日）
(Billion m3   十億m3）
Market Dataマーケットデータ
INPEX CORPORATION Fact Book 202005
Market Dataマーケットデータ
2004200520062007200820092010201120122013201420152016201720182019
Crude oil原油
（Thousand kl千kl） 860911905979973917853824759668626578549546496524
（Thousand bbl/day 千バレル／日）*14.815.715.616.916.815.814.714.213.111.510.810.09.59.48.59.0 
Natural gas天然ガス
（Million m3百万m3） 2,9573,1403,4083,7293,706 3,555 3,343 3,3343,1772,9402,7462,715 2,797 2,926 2,6572,467 
（Thousand boe/day 原油換算千バレル／日）* 50.453.558.163.563.260.657.056.854.150.146.846.347.749.945.342.0 
2004200520062007200820092010201120122013201420152016201720182019
Renewables, etc.新エネルギー他7,9409,2699,4109,6799,335 9,910 10,686 10,96511,31413,16115,31717,231 18,653 20,214 21,127 22,059 
Nuclear power原子力60,72564,13963,85955,52654,326 58,87660,66121,4173,3551,93001,958 3,746 6,827 13,280 13,044 
Hydroelectricity水力20,96416,41718,85815,88016,379 16,605 17,746 18,01516,27716,58017,37418,127 16,575 17,488 16,658 16,478 
Gasガス78,42778,80686,11992,96892,721 90,24295,511111,964116,602117,297118,836111,645 113,234 112,250 107,961 102,469 
Crude oil 石油275,169281,180268,355268,174258,710 235,748 242,466 243,550247,714240,721226,191223,822 217,099 216,046 207,920 202,524 
Coal石炭123,159116,670117,358122,593120,760 106,364 120,553 113,027118,544127,807123,415125,482 123,628 124,063 122,644 121,023 
Total合計566,384566,481563,959564,820552,231517,745547,623518,938513,806517,496501,133498,267 492,935 496,888 489,590 477,597 
2004200520062007200820092010201120122013201420152016201720182019
Electric power電力26.727.924.028.426.120.221.128.433.627.723.621.418.3 15.5 13.5 12.3
Non-energy*非エネルギー *5.85.45.45.24.54.54.44.23.93.73.63.53.4 3.3 3.6 3.3
Transportation運輸89.488.0 86.984.881.579.780.478.677.777.174.874.874.0 73.5 72.4 71.1
Household民生35.035.632.530.627.727.128.127.326.424.623.221.822.0 22.9 20.7 19.7Industrial (Manufacturing)産業（製造）70.769.667.463.756.556.056.152.151.152.150.351.649.0 50.1 47.9 47.5
Industrial (Non-manufacturing)産業（非製造） 12.411.510.0 9.07.77.37.06.76.66.56.36.36.3 6.2 6.1 5.8
Demand Total最終需要計213.3210.1202.1193.2177.8174.6176.0168.9165.7164.0158.2157.9154.6 156.0 150.6 147.4
Market Data (Japan)マーケットデータ（日本）
Crude oil and natural gas production (Japan)原油・天然ガス生産量の推移（日本）
Primary energy supply (Japan)一次エネルギー供給実績（日本）
Petroleum product demand by sector (Japan)部門別石油製品需要量（日本）
出典：「エネルギー・経済統計要覧2021」*「エネルギー・経済統計要覧2021」より当社にて作成。
出典：「エネルギー・経済統計要覧2021」
出典：「エネルギー・経済統計要覧2021」*グリース、パラフィン、アスファルト、潤滑油
Source: “Handbook of Energy and Economics Statistics in Japan 2021”* Data calculated from “Handbook of Energy and Economics Statics in Japan 2021.”
Source: “Handbook of Energy and Economics Statistics in Japan 2021”
Source: “Handbook of Energy and Economics Statistics in Japan 2021”* Grease, Paraffin, Asphalt and Lubricant
（Thousand kl千 kl） 
（Million m3百万 m3）
9053,408
979 3,729 973 3,706 917 3,555 853 3,343 824 3,334759 3,177
6682,940
6262,746
2,797 
2,926 
2,657 
5242,467 
（1010 kcal）
300,000
200,000
100,000
400,000
500,000
600,000547,623518,938513,806517,496501,133498,267 492,935 496,888 489,590477,597
566,384566,481563,959564,820552,231517,745
(Million tons石油換算百万トン）
154.6 156.0 150.6147.4
210.1202.1193.2177.8174.6176.0168.9165.7164.0158.2157.9
（1010 kcal）
(Million tons石油換算百万トン）
株式会社INPEX ファクトブック 202006
Crude oil imports to Japan by supply country日本の供給国別原油輸入量
LNG imports to Japan by supply country日本の供給国別LNG輸入量
2004200520062007200820092010201120122013201420152016201720182019
Saudi Arabiaサウジアラビア63,38072,78969,14966,87366,136 62,384 62,562 64,95064,12364,60363,52365,732 71,417 72,94367,69558,970 
UAEアラブ首長国連邦60,45661,08962,49657,67853,517 45,182 44,767 47,12646,62647,80348,69049,172 45,294 45,89444,89456,524 
Iranイラン36,38232,42526,88929,54627,849 23,002 20,944 16,25910,1149,65510,1709,660 13,345 9,6036,664676 
Iraqイラク3,6361,7422,2592,1613,082 4,782 6,986 4,5784,4283,3952,5553,119 4,681 3,4482,5961,987 
Qatarカタール21,84223,51124,70925,91425,82625,64124,87721,32724,07327,43018,64416,404 16,587 14,09514,20316,062 
Kuwaitクウェート17,88717,87216,87416,67719,570 16,318 14,938 14,57815,57615,15313,41015,127 12,601 13,53113,46715,434 
Neutral zone* 中立地帯*5,6404,9525,2404,5414,117 4,174 4,118 4,2454,4393,4132,357213 ̶̶̶̶
Other Middle Eastその他中東7,1177,3964,6055,8335,7548,0156,5054,9236,1044,4172,129972 2,649 2,0716,7245,371 
Indonesiaインドネシア7,8937,6466,6067,8586,419 4,193 5,155 7,3577,6526,8055,0144,253 2,712 2,0681,22525 
Other Southeast Asiaその他東南アジア4,0154,4943,3434,8074,062 2,268 2,258 5,7636,7834,5183,0362,827 1,845 1,9581,4201,554 
U.S.アメリカ̶̶̶̶̶̶̶̶̶̶47205 851 1,633 4,1772,700 
Russiaロシア1,5831,7363,7928,4238,7349,62915,1718,62911,16715,05016,31615,672 11,073 9,7297,7868,248 
Africaアフリカ9,96510,0569,4448,1325,8033,3702,9865,9836,2674,2563,0061,700 161 814757799 
Otherその他2,0113,3023,2433,5843,5392,6973,0903,4563,6753,8486,2729,459 7,831 7,303 5,4364,695 
Total Imports輸入合計241,805249,010238,649242,029234,406 211,656 214,357 209,173211,026210,345195,169194,515 191,047 185,091177,043173,044 
2004200520062007200820092010201120122013201420152016201720182019
Other*その他*̶̶̶̶̶̶̶6012110459 133 122 280 6771 
Papua New Guineaパプアニューギニア̶̶̶̶̶̶̶̶̶̶3,403 4,018 4,107 3,9663,4313,604 
Angolaアンゴラ̶̶̶̶̶̶̶̶̶12363 ̶64 67267̶
Franceフランス̶̶̶̶̶̶̶̶6343̶314 394 ̶259̶
Spainスペイン̶̶̶̶̶̶̶̶155152666 135 ̶̶̶̶
Peruペルー̶̶̶̶̶̶̶752872368̶148 120 474462636 
Yemenイエメン̶̶̶̶̶̶119362248502957 103 ̶̶̶̶
Russiaロシア̶̶̶̶̶4,339 5,978 7,7728,3668,5848,514 7,106 7,709 7,0626,3866,315 
Equatorial Guinea赤道ギニア̶̶̶5611,174 1,345 294 2,1242,8501,796659 449 540 576469 
Norwayノルウェー̶̶̶6162 ̶̶343240547177 ̶̶̶63̶
Egyptエジプト̶1185561,6271,270 ̶545 8511,10325969 ̶63 202125̶
Nigeriaナイジェリア112̶1651,0201,820 233 756 3,3374,5313,8925,108 3,717 1,801 1,3601,0531,062 
Trinidad & Tobagoトリニダード・トバゴ5556276599339 163 111 262331281121 57 57 227̶̶
Omanオマーン1,1041,1012,8643,6993,064 2,785 2,661 4,2273,7944,2293,002 2,491 2,526 2,8372,6312,951 
Qatarカタール6,7626,3967,7078,1298,095 8,011 7,720 14,30115,25216,17316,500 13,212 11,907 9,8639,6928,593 
Algeriaアルジェリア̶56184948491 60 ̶112171673560 701 250 73̶61 
Australiaオーストラリア8,61210,45612,60611,81612,174 12,457 13,248 13,59217,05718,37718,336 19,123 23,502 26,82629,44929,970 
Malaysiaマレーシア13,15413,13612,22013,25213,339 12,570 14,617 15,12614,26915,00515,316 15,602 15,549 14,2389,9609,938 
Indonesiaインドネシア15,54513,81313,95113,60513,949 12,746 12,930 7,9065,7766,5685,184 6,392 6,652 6,6634,7593,369 
UAEアラブ首長国連邦5,1075,3715,2625,5715,549 5,092 5,085 5,6385,5445,2825,695 5,639 4,863 4,7394,7361,444 
Brunei ブルネイ6,3576,1656,3936,6416,110 5,988 5,940 6,1765,9144,7724,431 4,072 4,044 4,0134,3204,249 
U.S.アメリカ1,2101,2501,127776699 563 557 242208̶253 157 479 9402,8294,166 
Total Imports輸入合計58,01857,91763,30968,30668,135 66,354 70,562 83,18386,86587,73189,071 83,571 84,749 83,88880,55376,498 
出典：「エネルギー・経済統計要覧2021」*サウジアラビアとクウェートの間の中立地帯
出典：「エネルギー・経済統計要覧2021」*その他にはベルギー、ブラジル、オランダ、シンガポール、韓国を含む。
Source: “Handbook of Energy and Economics Statistics in Japan 2021”* Saudi–Kuwaiti neutral zone
Source: “Handbook of Energy and Economics Statistics in Japan 2021”* Includes Belgium, Brazil, Netherlands, Singapore and Korea
（Thousand kl千 kl）
100,000
50,000
150,000
200,000
300,000
250,000241,805249,010238,649242,029234,406211,656214,357209,173211,026210,345195,169194,515 191,047 185,091 177,043173,044
（Thousand tons千トン）
25,000
50,000
100,000
75,000
58,01863,30957,917
68,30668,135 66,354 70,562 
83,18386,86587,73189,07183,571 84,749 83,888 80,55376,498
（Thousand kl千kl）
(Thousand tons 千トン）
Market Dataマーケットデータ
INPEX CORPORATION Fact Book 202007
Market Dataマーケットデータ
2004200520062007200820092010201120122013201420152016201720182019
Othersその他33464400 0 0 0088125116 130 143 118 87 
Natural gas天然ガス76,61885,627205,224261,800 256,383 249,389 235,526 242,056230,676217,777214,879211,426 210,829 204,419 191,141 181,439 
LNGLNG 1,122,040 1,229,603 1,553,654 1,681,577 1,665,757 1,660,226 1,804,873 1,872,865 1,868,354 1,824,421 1,838,784 1,843,478 2,006,735 2,042,845 2,013,290 2,002,959 
Coal-based gas石炭系ガス2,732 1,994 ̶̶̶̶̶̶̶̶̶̶̶̶̶̶
Crude oil-based gas 石油系ガス87,33076,74454,28253,59449,664 49,937 54,196 58,69959,96761,49364,47252,576 54,436 60,901 62,152 62,908 
Total合計1,288,754 1,394,013 1,814,650 1,997,579 1,971,867 1,959,639 2,094,791 2,173,820 2,159,224 2,103,899 2,118,356 2,107,637 2,272,178 2,308,333 2,266,726 2,247,417 
2004200520062007200820092010201120122013201420152016201720182019
City gas都市ガス18,87820,53923,28824,69724,148 23,847 25,32126,10526,36025,78426,21626,314 27,550 28,037 27,363 26,414 
Electric power電力37,17034,64138,17742,10641,035 40,890 42,393 53,56156,43157,03457,49053,194 55,688 52,922 49,666 46,601 
Total*合計*56,04855,18061,46566,80365,18364,73767,71479,66682,79182,81883,70679,50883,238 80,959 77,029 73,015 
Imports輸入量58,01857,91763,30968,30668,135 66,354 70,562 83,18386,86587,73189,07183,571 84,749 83,888 80,553 76,498 
2004200520062007200820092010201120122013201420152016201720182019
Othersその他112,120119,677115,989122,805120,538 120,899 130,942 124,515129,508149,718146,398142,553 151,058 155,159 127,476 127,737 
Industrial工業用556,126618,731789,339857,260838,487 828,458 904,674 967,931959,402929,097952,019963,093 1,012,932 1,025,005 1,047,723 996,948 
Commercial商業用197,226204,779200,639207,572199,836 193,876 198,978 188,339189,233188,077181,616178,203 180,721 182,545 178,207 174,152 
Residential家庭用396,129415,571408,764413,280403,778 403,064 409,770 409,873410,172399,927401,093386,872 393,744 413,304 386,973 392,486 
Total合計1,261,602 1,358,758 1,514,732 1,600,917 1,562,638 1,546,296 1,644,363 1,690,658 1,688,314 1,666,820 1,681,126 1,670,720 1,738,455 1,776,012 1,740,380 1,691,323 
Market Data (Japan)マーケットデータ（日本）
LNG consumption by sector (Japan)LNGの需要先別消費量（日本）
Breakdown of city gas production, purchases in Japan by raw material source原料別都市ガス生産・購入量
Gas sales volume by sector (Japan)用途別ガス販売量（日本）
出典：「エネルギー・経済統計要覧2021」* 都市ガスと電力の合計値。「エネルギー・経済統計要覧2021」より当社にて作成。
出典：「エネルギー・経済統計要覧2021」
出典：「エネルギー・経済統計要覧2021」
Source: “Handbook of Energy and Economics Statistics in Japan 2021”*  Total amount of city gas and electric power. Data calculated from “Handbook of Energy and Economics Statics in Japan 2021.”
Source: “Handbook of Energy and Economics Statistics in Japan 2021”
Source: “Handbook of Energy and Economics Statistics in Japan 2021”
(Thousand tons千トン）
40,000
20,000
60,000
80,000
56,04855,18061,46566,80365,18364,73767,714
79,66682,79182,81883,70679,50883,238 80,959 77,02973,015
（106 MJ）
2,308,3332,266,726 2,247,4172,272,178 1,997,579 1,971,867 1,959,639 2,094,791 2,173,820 2,159,224 2,103,899 2,118,356 2,107,6371,814,650
1,394,0131,288,754
1,500,000
1,000,000
500,000
2,000,000
2,500,000
（106 MJ）
1,600,917 1,562,638 1,546,296 1,644,363 1,690,658 1,688,314 1,666,820 1,681,126 1,670,720 1,738,455 1,776,012 1,740,380 1,691,3231,514,7321,358,7581,261,602
1,500,000
1,000,000
500,000
2,000,000
（106 MJ）
(Thousand tons千トン）
（106 MJ）
株式会社INPEX ファクトブック 202008
400,000
200,000
600,000
800,000
–150,000
100,000
–100,000
50,000
–50,000
150,000
200,000
（¥ million  百万円） （¥ million  百万円） 
100,000
200,000
300,000
400,000
（¥ million  百万円） 
2010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
Operating income営業利益
Operating margin売上高営業利益率
■Net income (loss) attributable to owners of parent親会社株主に帰属する当期純利益（損失）
Net margin売上高当期純利益率
461,667
709,357 693,447733,610
40,362242,539
274,929
362,595 350,900
402,178
303,144
217,896 229,299 227,225
285,423
354,604
294,849
46,168
96,106
123,550
–111,699
77,820
183,690
182,961
194,000
128,699
107,210
57.0%55.0%
38.3%357,363
48.8%474,28149.9%498,641
248,471
38.5%336,45238.6%390,139
56.2%54.9%
529,742
534,886
1.7%16,777
600,000
300,000
900,000
1,200,000
1,500,000
150,000
300,000
450,000
600,000
（¥ million  百万円） （¥ million  百万円） 
400,000
200,000
600,000
800,000
1,000,000
（¥ million  百万円） （%） 
2010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
Otherその他
Natural gas天然ガス
Crude oil原油
■ Gross profit売上総利益
Gross margin売上高総利益率
840,427
943,080
486,920557,910
326,412
356,247
27,094
28,921
726,222
429,065
31,443 
298,167334,833
1,186,7311,216,533
1,334,625
788,135
397,766
30,631
858,753
455,414
20,4571,171,226
730,422
421,859
18,9441,009,564
679,241
316,761
13,561
14,653874,423 15,322933,701
617,194710,277
208,102
17,983971,388
782,695
170,710
12,8671,000,005
764,039
223,09914,937771,046
505,517
250,591
242,575
395,442426,326
490,416525,443 526,757
453,846
498,039
413,300 424,702 439,852
542,259
791,288
790,206
645,78265.0%
844,209
46.7%435,66257.5%558,08857.5%575,303
331,194
48.1%420,57647.8%482,806
64.5%608,247
Index Data指標データ
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Net sales売上高840,427 943,080 1,186,731 1,216,5331,334,6251,171,2261,009,564874,423 933,701 971,3881,000,005771,046 
Crude oil原油486,920 557,910 726,222 788,135858,753730,422679,241617,194 710,277 782,695764,039505,517 
Natural gas天然ガス326,412 356,247 429,065 397,766455,414421,859316,761242,575 208,102 170,710223,099250,592 
Otherその他27,094 28,921 31,443 30,63120,45718,94413,56114,653 15,322 17,98312,86714,937 
Cost of sales売上原価298,167 334,833 395,442 426,326490,416525,443526,757453,846 498,039 413,300424,702439,852 
Gross profi t売上総利益542,259 608,247 791,288 790,206844,209645,782482,806420,576 435,662 558,088575,303331,194 
Operating income営業利益461,667 529,742 709,357 693,447733,610534,886390,139336,452 357,363 474,281498,641248,471 
Net income (loss) attributable to owners of parent
親会社株主に帰属する当期純利益（損失）107,210 128,699 194,000 182,961183,69077,82016,77746,168 40,362 96,106123,550(111,699)
EBIDAX*EBIDAX*242,539 274,929 362,595 350,900402,178303,144217,896229,299 227,225 285,423354,604294,849 
Gross margin売上高総利益率64.5%64.5%66.7%65.0%63.3%55.1%47.8%48.1%46.7%57.5%57.5%43.0%
Operating margin売上高営業利益率54.9%56.2%59.8%57.0%55.0%45.7%38.6%38.5%38.3%48.8%49.9%32.2%
Net margin売上高当期純利益率12.8%13.6%16.3%15.0%13.8%6.6%1.7%5.3%4.3%9.9%12.4%̶
Profitability Indices (Consolidated)収益性指標（連結）
Net sales売上高
Operating income, Operating margin営業利益、売上高営業利益率
Cost of sales売上原価
Net income (loss) attributable to owners of parent, Net margin親会社株主に帰属する当期純利益（損失）、売上高当期純利益率
Gross profit, Gross margin売上総利益、売上高総利益率
EBIDAXEBIDAX（利払い・償却・探鉱費前利益）
* 利払い・償却・探鉱費前利益* Earnings before interest, depreciation and amortization, and exploration
(¥ million  百万円)
• EBIDAX（利払い・償却・探鉱費前利益）＝当期純利益（損失）（非支配株主帰属分を含む）＋
法人税等調整額＋（1－実効税率）×（支払利息－受取利息）＋為替差損益＋減価償却費＋
のれん償却額＋生産物回収勘定（資本支出）の回収額＋探鉱費＋探鉱事業引当金繰入額＋
生産物回収勘定引当金繰入額－生産物回収勘定引当金戻入益＋減損損失
• 売上高総利益率＝売上総利益／売上高 
• 売上高営業利益率＝営業利益／売上高 
• 売上高当期純利益率＝親会社株主に帰属する当期純利益（損失）／売上高
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019
年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
• EBIDAX = Net income (loss) (including non-controlling interests) + Deferred tax + (1 – Tax rate) x (Interest expense – Interest income) + Foreign exchange gain and loss + Depreciation and amortization + Amortization of goodwill + Recovery of recoverable accounts under production sharing (capital expenditures) + Exploration expenses + Provision for exploration projects + Provision for allowance for recoverable accounts under production sharing – Gain on reversal of allowance for recoverable accounts under production sharing + Impairment loss• Gross margin = Gross profit / Net sales • Operating margin = Operating income / Net sales • Net margin = Net income (loss) attributable to owners of parent / Net sales• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.
Index Data指標データ
INPEX CORPORATION Fact Book 202009
Index Data指標データ
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Total assets turnover (Times)総資産回転率（回） 0.440.400.410.360.350.270.230.200.22 0.210.210.16 
Net assets turnover (Times)純資産回転率（回）0.590.530.540.490.470.370.310.270.29 0.300.310.24 
Return on equity (ROE)株主資本利益率（ROE） 8.1% 7.6% 9.3% 7.9% 7.0% 2.7% 0.6% 1.6% 1.4%3.2%4.1%(3.9%)
Net return on average capital employed (Net ROACE)
純使用総資本利益率（ネットROACE） 10.5% 10.8% 16.0% 11.2% 8.6% 2.7% (1.0%) 1.7% (0.0%)2.7%3.3%(2.8%)
Return on assets (ROA)総資産利益率（ROA） 5.7% 5.5% 6.8% 5.5% 4.8% 1.8% 0.4% 1.1% 0.9%2.1%2.6%(2.4%)
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Number of employees (People)(End of the fiscal year)期末従業員数（人）1,870 1,854 2,146 2,4552,874 3,178 3,449 3,228 3,1893,1183,1173,163 
Net sales per employee従業員一人当たり売上高456 506 593 528501 387 304 261 291308320245 
Operating income per employee従業員一人当たり営業利益251 284 354 301275 176 117 100 11115015979 
Ordinary income per employee従業員一人当たり経常利益240 273 383 312282 190 113 100 12016416382 
Net income (loss) per employee従業員一人当たり当期純利益（損失）58 69 97 7969 25 5 13 123039(35) 
Efficiency Indices (Consolidated)効率性指標（連結）
Productivity Indices (Consolidated)生産性指標（連結）
Number of employees (End of the fiscal year)期末従業員数
Net sales per employee従業員一人当たり売上高Net income (loss) per employee従業員一人当たり当期純利益（損失）
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
5.7%5.5%
5.5%4.8%
0.4%1.1%0.9%
2.1%2.6%
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
（People  人） 
1,870 1,854
3,4493,189 3,118 3,117 3,1633,228
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
（¥ million  百万円） 
456506
528501
304291308320
245261
Return on assets (ROA)総資産利益率（ROA）Return on equity (ROE)株主資本利益率（ROE）
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
7.9%7.0%
2.7%0.6%1.6% 1.4%
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
（¥ million  百万円） 
• 総資産回転率=売上高／期首期末平均総資産 
• 純資産回転率=売上高／期首期末平均純資産 
• 株主資本利益率（ROE）＝親会社株主に帰属する当期純利益（損失）／自己資本*の期首と期末
• 純使用総資本利益率（ネットROACE）＝（当期純利益（損失）（非支配株主帰属分を含む）＋
（支払利息－受取利息）×（1－実効税率））／純資産及び純有利子負債*の合計の期首と期末
• 総資産利益率（ROA）＝親会社株主に帰属する当期純利益（損失）／期首期末平均総資産
• 従業員一人当たり売上高＝売上高／期首期末平均従業員数 
• 従業員一人当たり営業利益＝営業利益／期首期末平均従業員数 
• 従業員一人当たり経常利益＝経常利益／期首期末平均従業員数 
•  従業員一人当たり当期純利益（損失）＝親会社株主に帰属する当期純利益（損失）／期首期末
平均従業員数
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019
年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
*10ページを参照。
• Total assets turnover = Net sales / Average of total assets at the beginning and end of the fiscal year • Net assets turnover = Net sales / Average of net assets at the beginning and end of the fiscal year • ROE = Net income (loss) attributable to owners of parent / Average of net assets excluding non-controlling interests* at the beginning and end of the fiscal year • Net ROACE = (Net income (loss) (including non-controlling interests) + (Interest expense – Interest income) x (1 – Tax rate)) / Average of sum of net assets and net debt* at the beginning and end of the fiscal year• ROA = Net income (loss) attributable to owners of parent / Average of total assets at the beginning and end of the fiscal year• Net sales per employee = Net sales / Average number of employees at the beginning and end of the fiscal year • Operating income per employee = Operating income / Average number of employees at the beginning and end of the fiscal year • Ordinary income per employee = Ordinary income / Average number of employees at the beginning and end of the fiscal year • Net income (loss) per employee = Net income (loss) attributable to owners of parent / Average number of employees at the beginning and end of the fiscal year• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.* See page 10
(¥ million  百万円)
株式会社INPEX ファクトブック 202010
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Total assets総資産2,013,7782,680,3793,066,3973,616,1584,038,1394,499,1534,369,8414,312,1744,252,3864,793,545 4,849,9954,634,518
Net assets excluding non-controlling interests自己資本1,387,4991,996,8882,179,2512,481,2922,791,1083,066,6802,932,8922,943,1692,916,6803,006,480 3,040,7752,736,541
Interest-bearing debt有利子負債240,382273,147318,774475,468583,628677,157741,567687,684698,5771,141,197 1,117,7801,234,847
Net debt純有利子負債(349,211)(688,806)(874,116)(815,306)(725,329)(472,194)(239,311)29,566422,474901,521943,9821,051,869
Equity ratio自己資本比率68.9%74.5%71.1%68.6%69.1%68.2%67.1%68.3%68.6%62.7%62.7%59.0%
Current ratio流動比率216%194%247%267%304%368%308%317%152%123%105%114%
Fixed ratio固定比率110%110%99%101%104%103%115%114%130%144%146%155%
D/E ratio負債比率17.3%13.7%14.6%19.2%20.9%22.1%25.3%23.4%24.0%38.0%36.8%45.1%
Interest-bearing debt / Total capital employed有利子負債／使用総資本13.9%11.5%12.1%15.1%16.3%17.1%18.9%17.7%18.1%25.9%25.3%29.1%
Net debt / Net total capital employed純有利子負債／純使用総資本(30.6%)(48.9%)(60.7%)(43.9%)(31.9%)(16.8%)(8.1%)0.9%11.8%21.7%22.3%26.0%
Stability Indices (Consolidated)安全性指標（連結）
Total assets総資産
Current ratio流動比率
Net assets excluding non-controlling interests, Equity ratio自己資本、自己資本比率
Fixed ratio固定比率Net debt, Net debt / Net total capital employed純有利子負債、純有利子負債／純使用総資本
Interest-bearing debt, D/E ratio有利子負債、負債比率
1,200,000
3,600,000
2,400,000
4,800,000
1,400,000
700,000
2,100,000
2,800,000
3,500,000
（¥ million  百万円） （¥ million  百万円）
300,000
600,000
900,000
1,500,000
1,200,000
（¥ million  百万円） 
2010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3 2019/3 2019/12 2020/122019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
■ Net assets excluding non-controlling interests自己資本
Equity ratio自己資本比率
■ Interest-bearing debt有利子負債
D/E ratio負債比率
2,013,778
2,680,379
3,066,397
3,616,158
4,038,139
4,499,153 4,369,8414,312,1744,252,386
4,793,545 4,849,9954,634,518
1,387,499
1,996,8882,179,251
68.9%74.5%71.1% 2,481,292
2,791,108
3,066,6802,932,8922,943,1692,916,680
240,382 273,147 318,774
13.7%14.6%
475,468583,628
677,157
741,567
687,684698,577
23.4%24.0%
1,141,197
1,117,780
1,234,847
69.1%68.2%67.1%68.3%68.6%
3,006,480
3,040,775
2,736,541
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
247%267%
105% 114%
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
110% 110%99%101% 104% 103%115% 114%
144% 146%
−1,000,000
−750,000
−500,000
−250,000
1,000,000
750,000
500,000
250,000
（¥ million  百万円） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
■ Net debt純有利子負債
Net debt  /  Net total capital employed
純有利子負債 ／ 純使用総資本
–349,211 –688,806 –874,116 –815,306 –725,329 –472,194 –239,311 29,566
422,474
–30.6%
–48.9%
–60.7%–43.9%
–31.9%
–16.8%
901,521 943,982
21.7%22.3%
1,051,869
• 自己資本＝純資産－非支配株主持分
• 有利子負債＝短期借入金＋長期借入金
• 純有利子負債＝有利子負債－現金及び現金同等物－現金同等物外の定期預金－
現金同等物外の譲渡性預金－国債・地方債・社債等（時価のあるもの）－長期預金 
• 自己資本比率＝自己資本／総資産
• 流動比率＝流動資産／流動負債 
• 固定比率＝固定資産／自己資本 
• 負債比率＝有利子負債／自己資本
• 有利子負債／使用総資本＝有利子負債／（純資産＋有利子負債）
• 純有利子負債／純使用総資本＝純有利子負債／（純資産＋純有利子負債）
• 2018年3月31日に終了した事業年度は、「『税効果会計に係る会計基準』の一部改正」（企業会
計基準第28号 2018年2月16日）等を遡って適用した後の金額。
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019
年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
• Net assets excluding non-controlling interests = Net assets – Non-controlling interests• Interest-bearing debt = Short-term loans + Long-term debt • Net debt = Interest-bearing debt – Cash and cash equivalents – Time deposits – Certificate of deposits – Public and corporate bonds and other debt securities with determinable value – Long-term time deposits • Equity ratio = Net assets excluding non-controlling interests / Total assets• Current ratio = Current assets / Current liabilities• Fixed ratio = Fixed assets / Net assets excluding non-controlling interests• D/E ratio = Interest-bearing debt / Net assets excluding non-controlling interests• Interest-bearing debt / Total capital employed = Interest-bearing debt / (Net assets + Interest-bearing debt) • Net debt / Net total capital employed = Net debt / (Net assets + Net debt)• “Partial Amendments to Accounting Standard for Tax Effect Accounting” (ASBJ Statement No. 28, February 16, 2018) was retrospectively applied to the balances as of March 31, 2018.• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.
(¥ million  百万円)
Index Data指標データ
INPEX CORPORATION Fact Book 202011
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Earnings per share (EPS)一株当たり当期純利益（損失）（EPS）113.88 102.08 132.84 125.29 125.78 53.29 11.49 31.61 27.64 65.81 84.61(76.50)
Net assets excluding non-controlling interests per share一株当たり純資産1,473.87 1,367.40 1,492.27 1,699.10 1,911.25 2,099.95 2,008.34 2,015.38 1,997.24 2,058.95 2,082.431,874.08 
Cash flow per share一株当たりキャッシュ・フロー256.40217.40219.60172.80146.21148.42125.80188.86 190.73 163.37 188.15200.60 
Cash dividends per share一株当たり配当金13.7515.0017.5017.5018.0018.0018.0018.00 18.00 24.00 30.0024.00 
Price earnings ratio (PER) (Times)株価収益率（PER）（倍）15.1 15.5 10.510.010.624.974.334.6 47.6 16.0 13.4(7.3) 
Price book-value ratio (PBR) (Times)株価純資産倍率（PBR）（倍）1.2 1.2 0.90.70.70.60.40.5 0.7 0.5 0.50.3 
Price cash fl ow ratio (PCFR) (Times)株価キャッシュ・フロー倍率（PCFR）（倍）6.7 7.3 6.47.29.28.96.85.8 6.9 6.5 6.02.8 
Payout ratio配当性向12.1%14.7%13.2%14.0%14.3%33.8%156.7%56.9%65.1%36.5%35.5%̶
Performance Indices (Consolidated)投資指標（連結）
Earnings per share (EPS)一株当たり当期純利益（損失）（EPS）
Price book-value ratio (PBR)株価純資産倍率（PBR）
Cash dividends per share一株当たり配当金
Price cash flow ratio (PCFR)株価キャッシュ・フロー倍率（PCFR）
Price earnings ratio (PER) 株価収益率（PER）
Payout ratio 配当性向
（Times倍） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
15.115.510.510.010.624.9
16.0 13.4
（¥  円） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
13.7515.00
17.50 17.50 18.00 18.00 18.00 18.00 18.00
24.0024.00
（¥  円） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
113.88102.08
132.84 125.29 125.78
31.61 27.64
–76.50
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
12.1% 14.7% 13.2% 14.0%
156.7%
36.5% 35.5%
（Times倍） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
6.77.36.47.2
9.28.9
6.85.86.96.56.0
（Times倍） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
1.21.2
0.90.70.70.6
0.40.50.50.5
Index Data指標データ
*2020/12 payout ratio is not presented due to net loss
*2020年12月期は、純損失のため配当性向は該当なし
• 一株当たり当期純利益（損失）＝親会社株主に帰属する当期純利益（損失）／期中平均株式数
• 一株当たり純資産＝自己資本／期末発行済株式数
• 一株当たりキャッシュ・フロー＝営業キャッシュ・フロー／期中平均株式数
• 株価収益率＝期末株価／一株当たり当期純利益（損失）
• 株価純資産倍率＝期末株価／一株当たり純資産
• 株価キャッシュ・フロー倍率＝期末株価／一株当たりキャッシュ・フロー
• 配当性向＝一株当たり配当金／一株当たり当期純利益（損失）
•  当社は、2013年10月1日を効力発生日として普通株式1株につき400株の割合で株式分割を
行った。これに伴い、2009年3月31日に終了した事業年度の期首に当該株式分割が行われた
と仮定して一株当たり情報を算定している。
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019
年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
• EPS = Net income (loss) attributable to owners of parent / Average number of shares during the fiscal year• Net assets excluding non-controlling interests per share = Net assets excluding non-controlling interests / Number of shares issued at the end of the fiscal year• Cash flow per share = Cash flows from operating activities / Average number of shares during the fiscal year• PER = Stock price (end of the fiscal year) / EPS• PBR = Stock price (end of the fiscal year) / Net assets excluding non-controlling interests per share • PCFR = Stock price (end of the fiscal year) / Cash flow per share• Payout ratio = Cash dividends per share / EPS• INPEX conducted a stock split at a ratio of 1:400 of common stock with October 1, 2013 as the effective date. Amounts per share are calculated based on the assumption that the stock split was conducted on April 1, 2008.• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.
（¥  円）
株式会社INPEX ファクトブック 202012
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Net proved reserves (MMboe)確認埋蔵量（原油換算百万バレル） 1,475 1,308 2,432 2,1882,5322,4343,2643,3043,8574,0104,0863,730
Net production (Thousand boe/day)生産量（原油換算千バレル／日） 405 423 426 408409408514521450424586573
Reserves to production ratio (Years)可採年数（年）
Proved reserves確認埋蔵量10.0 8.5 15.6 14.717.116.417.417.423.525.919.117.8
Reserve replacement ratio (3-year average, %)リザーブ・リプレースメント・レシオ（3年平均、%）35%25%282%255%370%100%321%246%362%246%263%76%
Average expenses per boe produced (U.S.$)原油換算1バレル当たりの平均コスト（米ドル）
Production cost生産コスト11.0 11.3 16.1 17.618.017.812.611.012.813.512.48.6
Production cost (Excluding royalty)生産コスト（ロイヤリティを除く）6.5 5.9 7.6 8.79.510.97.65.95.95.75.35.2
 Selling, general and administrative expenses (Upstream related)販売費及び一般管理費（上流事業に係るもの）2.7 2.6 3.3 3.73.53.52.62.12.72.72.42.3
Finding and development cost per boe (3-year average, U.S.$)
原油換算1バレル当たりの探鉱・開発費（3年平均、米ドル）55.4 78.6 6.3 11.211.758.216.915.77.78.47.116.4
Exploration success ratio (3-year average, %)試探掘成功率（3年平均、%） 64.5%46.8%50.6%45.0%59.5%52.9%45.3%43.8%21.0%60.7%61.8%77.0%
Reserves / Production Indices (Consolidated)埋蔵量・生産量指標（連結）
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
246%246%
（Years年）  
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
10.08.5
15.6 14.7 
17.1 16.417.417.4
19.117.8
（MMboe原油換算百万バレル） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
1,475 1,308
2,432 2,188
2,532 2,434
3,264 3,304
3,857 4,0104,086
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
45.3% 43.8%
60.7% 61.8%
（U.S.$米ドル）  
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
7.78.47.1
（U.S.$米ドル）  
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
Production cost生産コスト
Production cost (Excluding royalty)
生産コスト（ロイヤリティを除く）
Selling, general and administrative expenses (Upstream related)
販売費及び一般管理費（上流事業に係るもの）
11.0 11.3
2.72.63.3 
6.55.9
7.68.7
2.72.7
Net proved reserves確認埋蔵量
Average expenses per boe produced（Production cost, Selling, general and administrative expenses）原油換算1バレル当たりの平均コスト（生産コスト、販売費及び一般管理費）
Reserves to production ratio(Proved reserves)可採年数（確認埋蔵量）
Finding and development cost per boe (3-year average, U.S.$)原油換算1バレル当たりの探鉱・開発費（3年平均、米ドル）
Exploration success ratio (3-year average, %)試探掘成功率（3年平均、%）
Reserve replacement ratio (3-year average, %)リザーブ・リプレースメント・レシオ（3年平均、%）
• 可採年数（年）＝期末埋蔵量／期中生産量
• リザーブ・リプレースメント・レシオ＝期中の確認埋蔵量増加分／期中生産量
• 原油換算 1 バレル当たりの探鉱・開発費＝原油・ガス田の探鉱・開発費用及び権益の
取得費用の合計額を、確認埋蔵量増加分で除した数値。なお、数値精査の結果、2019年3月
期と2019年12月期の数値を修正した。
• 試探掘成功率=試探掘井掘削本数に占める成功井数の割合
 試探掘井:新規フィールドの発見、貯留層が発見されているフィールドにおける他の貯留層の
発見、既知の貯留層の広がりの確認を目的とした掘削井
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019
年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
*18ページの注も参照。
• Reserves to production ratio (Years) = Reserves as of the end of the fiscal year / Production in the fiscal year• Reserve replacement ratio = Proved reserves increase including acquisition / Production• Finding and development cost per boe = The sum of total costs incurred for exploration and development of oil and gas fields and total costs incurred for acquisitions / The sum of proved reserve extensions, acquisitions and revisions. The costs per boe for the year ended March 31, 2019 and the year ended December 31, 2019 have been revised as a result of further investigation of the figures.• Exploration success ratio = The number of net productive exploratory wells drilled / The number of net exploratory wells drilled Exploratory well: An exploratory well is a well drilled to find a new field, to find a new reservoir in a field previously found to be productive of oil or gas in another reservoir or to extend the limits of a known reservoir.• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.* Please also refer to the footnotes on page 17.
Index Data指標データ
INPEX CORPORATION Fact Book 202013
Oil and Gas Reserves埋蔵量データ
Operating Data事業データ
Proved reserves確認埋蔵量Crude oil (MMbbl) Gas (Bcf)原油（百万バレル） ガス（十億cf）
Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia(Europe & NIS)ユ̶ラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州Total合計Crude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスINPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20102010年3月31日時点16 656 111 1,649 207 ̶433 ̶4 190 771 2,495  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶(6)(37)7 ̶̶̶(3)̶(2)(37) Revisions of previous estimates前年度調整分0 ̶4 (100)6 ̶(3)̶0 2 8 (98) Interim production期中生産量(1)(46)(24)(305)(10)̶(27)̶(1)(30)(63)(380)As of March 31, 20112011年3月31日時点15 611 85 1,208 210 ̶404 ̶0 162 715 1,980Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20102010年3月31日時点̶̶1 475 ̶̶203 ̶4 0 209 475 Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶0 ̶̶̶0 ̶ Revisions of previous estimates前年度調整分̶̶0 16 ̶̶(1)̶0 0 (1)16  Interim production期中生産量̶̶(0)(20)̶̶(23)̶(2)(0)(24)(21)As of March 31, 20112011年3月31日時点̶̶2 470 ̶̶179 ̶3 0 184 471 As of March 31, 20112011年3月31日時点15 611 87 1,678 210 ̶583 ̶3 162 899 2,451
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20112011年3月31日時点15 611 85 1,208 210 ̶404 ̶0 162 715 1,980  Extensions and discoveries拡張及び発見̶̶190 5,364 ̶̶̶̶̶̶190 5,364  Acquisitions and sales買収及び売却̶̶̶̶̶̶(2)̶̶̶(2)̶ Revisions of previous estimates前年度調整分2 87 2 181 (13)̶1 ̶0 59 (7)327  Interim production期中生産量(1)(47)(23)(243)(9)̶(31)̶(0)(26)(64)(316)As of March 31, 20122012年3月31日時点16 651 255 6,509 188 ̶371 ̶0 195 831 7,354 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20112011年3月31日時点̶̶2 470 ̶̶179 ̶3 0 184 471  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶1 (9)̶̶(7)̶(0)0 (6)(9) Interim production期中生産量̶̶(0)(22)̶̶(26)̶(2)(0)(27)(23)As of March 31, 20122012年3月31日時点̶̶2 439 ̶̶147 ̶1 0 150 439 As of March 31, 20122012年3月31日時点16 651 257 6,947 188 ̶518 ̶1 195 981 7,793 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20122012年3月31日時点16 651 255 6,509 188 ̶371 ̶0 195 831 7,354  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶63 ̶63  Acquisitions and sales買収及び売却̶̶(24)(698) ̶̶̶̶9 7 (15) (691)  Revisions of previous estimates前年度調整分0 7 (1) (92) 4 42 23 ̶(0)55 26 12  Interim production期中生産量(1)(49)(21) (212) (9) ̶(31) ̶(0)(24) (63) (284) As of March 31, 20132013年3月31日時点15 609 208 5,507 183 42 363 ̶9 296 779 6,454 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20122012年3月31日時点̶̶2 439 ̶̶147 ̶1 0 150 439  Extensions and discoveries拡張及び発見̶̶0 11 ̶̶̶̶̶̶0 11  Acquisitions and sales買収及び売却̶̶̶̶̶̶10 ̶̶̶10 ̶ Revisions of previous estimates前年度調整分̶̶0 (116) ̶̶12 ̶5 0 17 (116)  Interim production期中生産量̶̶(0)(19) ̶̶(27) ̶̶̶(27) (19) As of March 31, 20132013年3月31日時点̶̶3 314 ̶̶142 ̶6 0 151 315 As of March 31, 20132013年3月31日時点15 609211 5,821 183 42 505 ̶15 297 929 6,768 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20132013年3月31日時点15 609 208 5,507 183 42 363 ̶9 296 779 6,454  Extensions and discoveries拡張及び発見7 261 ̶3 ̶̶408 ̶̶22 414 286  Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分(0)(8) 8 12 13 (15) 2 ̶(0)7 23 (4) Interim production期中生産量(1) (46) (17) (217) (10) ̶(31) ̶(0)(37) (59) (300) As of March 31, 20142014年3月31日時点21 816 199 5,306 186 27 742 ̶9 288 1,157 6,437 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20132013年3月31日時点̶̶3 314 ̶̶142 ̶6 0 151 315  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶(1) (1) ̶̶3 ̶(1) 0 1 (1)  Interim production期中生産量̶̶(0)(15) ̶̶(30) ̶(0)(0)(31) (15) As of March 31, 20142014年3月31日時点̶̶2 298 ̶̶115 ̶5 1 121 298 As of March 31, 20142014年3月31日時点21 816 201 5,603 186 27 857 ̶13 289 1,278 6,735 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20142014年3月31日時点21 816 199 5,306 186 27 742 ̶9 288 1,157 6,437  Extensions and discoveries拡張及び発見̶̶18 182 13 ̶̶̶3 63 34 245  Acquisitions and sales買収及び売却̶̶(9)(269)̶̶̶̶1 1 (8)(268) Revisions of previous estimates前年度調整分(0)(9)12 121 3 0 (16)̶(0)29 (2)140  Interim production期中生産量(1)(42)(15)(217)(10)̶(31)̶(0)(38)(58)(296)As of March 31, 20152015年3月31日時点19 765 204 5,123 192 27 695 ̶13 343 1,123 6,258 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20142014年3月31日時点̶̶2 298 ̶̶115 ̶5 1 121 298  Extensions and discoveries拡張及び発見̶̶0 20 ̶̶5 ̶̶̶5 20  Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶(0)9 ̶̶(1)̶(3)(0)(4)8  Interim production期中生産量̶̶(0)(24)̶̶(31)̶(1)(0)(31)(24)As of March 31, 20152015年3月31日時点̶̶2 302 ̶̶87 ̶1 0 90 302 As of March 31, 20152015年3月31日時点19 765 206 5,425192 27 783 ̶13 343 1,213 6,561 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20152015年3月31日時点19 765 204 5,123 192 27 695 ̶13 343 1,123 6,258  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶975 ̶̶̶975 ̶ Revisions of previous estimates前年度調整分0 (0)1 (73)3 (6)37 ̶(0)(160)41 (240) Interim production期中生産量(1)(44)(17)(243)(12)̶(32)̶(2)(32)(64)(319)As of March 31, 20162016年3月31日時点18 721 187 4,807 184 21 1,675 ̶10 151 2,075 5,700 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20152015年3月31日時点̶̶2 302 ̶̶87 ̶1 0 90 302  Extensions and discoveries拡張及び発見̶̶̶̶̶̶2 ̶̶̶2 ̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶(0)44 ̶̶9 ̶(0)(0)9 44  Interim production期中生産量̶̶(0)(22)̶̶(32)̶(1)(0)(33)(22)As of March 31, 20162016年3月31日時点̶̶1 325 ̶̶67 ̶̶̶69 325 As of March 31, 20162016年3月31日時点18 721 189 5,132184 21 1,742 ̶10 151 2,143 6,025 
(continued on page 14)（14ページへ続く）
株式会社INPEX ファクトブック 202014
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20162016年3月31日時点18 721 187 4,807 184 21 1,675 ̶10 151 2,075 5,700  Extensions and discoveries拡張及び発見̶̶0 3 ̶̶̶̶2 ̶3 3  Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分(0)(15)8 35 44 106 134 ̶(0)(37)185 89  Interim production期中生産量(1)(46)(11)(222)(11)(2)(64)̶(2)(16)(89)(286)As of March 31, 20172017年3月31日時点17 659 184 4,624 217 125 1,746 ̶10 99 2,173 5,506 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20162016年3月31日時点̶̶1 325 ̶̶67 ̶̶̶69 325  Extensions and discoveries拡張及び発見̶̶1 99 2 ̶̶̶̶̶3 99  Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶0 (19)̶̶(1)̶̶̶(1)(19) Interim production期中生産量̶̶(0)(20)̶̶(34)̶̶̶(34)(20)As of March 31, 20172017年3月31日時点̶̶2 385 2 ̶32 ̶̶̶36 385 As of March 31, 20172017年3月31日時点17 659 186 5,008219 125 1,778 ̶10 99 2,210 5,891 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20172017年3月31日時点17 659 184 4,624 217 125 1,746 ̶10 99 2,173 5,506  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶(7)(53)̶̶313 ̶̶̶307 (53) Revisions of previous estimates前年度調整分4 171 12 202 32 36 292 ̶(3)(38)338 371  Interim production期中生産量(1)(51)(6)(141)(14)(8)(63)̶(1)(41)(85)(242)As of March 31, 20182018年3月31日時点20 778 183 4,632 236 153 2,288 ̶6 19 2,732 5,583 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20172017年3月31日時点̶̶2 385 2 ̶32 ̶̶̶36 385  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶2 ̶̶̶̶̶2 ̶ Revisions of previous estimates前年度調整分̶̶0 26 5 ̶2 ̶0 0 8 26  Interim production期中生産量̶̶(0)(18)(1)̶(29)̶(0)(0)(31)(18)As of March 31, 20182018年3月31日時点̶̶2 394 8 ̶5 ̶̶̶15 394 As of March 31, 20182018年3月31日時点20 778 186 5,026244 153 2,293 ̶6 19 2,747 5,976 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20182018年3月31日時点20 778 183 4,632 236 153 2,288 ̶6 19 2,732 5,583  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶10281̶̶̶̶̶̶10281 Revisions of previous estimates前年度調整分(0)(3)4181685138̶(1)19209203 Interim production期中生産量(1)(48)(7)(126)(15)(10)(82)̶(1)(23)(106)(217)As of March 31, 20192019年3月31日時点18 7271904,9682891482,343̶462,8455,849Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20182018年3月31日時点̶̶2 394 8 ̶5 ̶̶̶15 394  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶(0)(44)7̶2̶009(44) Interim production期中生産量̶̶(0)(20)(2)̶(2)̶(0)(0)(5)(20)As of March 31, 20192019年3月31日時点̶̶233012̶5̶̶̶20330As of March 31, 20192019年3月31日時点187271925,2983011482,349̶462,8646,179
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20192019年3月31日時点18 727 190 4,968 289 148 2,343 ̶4 6 2,845 5,849  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶44 25 44 25  Revisions of previous estimates前年度調整分1 33 (3)32 23 56 136 ̶0 14 157 135  Interim production期中生産量(1)(33)(13)(264)(11)(7)(66)̶(2)(17)(94)(320)As of December 31, 20192019年12月31日時点18 728 174 4,736 301 198 2,413 ̶46 27 2,952 5,688 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of March 31, 20192019年3月31日時点̶̶2 330 12 ̶5 ̶̶̶20 330  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶(0)̶̶̶̶̶(0)̶ Revisions of previous estimates前年度調整分̶̶(0)11 4 ̶1 ̶0 0 5 11  Interim production期中生産量̶̶(0)(17)(2)̶(1)̶(0)(0)(3)(17)As of December 31, 20192019年12月31日時点̶̶2 324 15 ̶5 ̶̶̶22 324 As of December 31, 20192019年12月31日時点18 728 176 5,060 315 198 2,419 ̶46 27 2,974 6,012 
INPEX CORPORATION and consolidated subsidiaries連結対象会社分As of December 31, 20192019年12月31日時点18 728 174 4,736 301 198 2,413 ̶46 27 2,952 5,688  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分(1)(41)(6)(6)30 26 (170)̶(4)2 (151)(19) Interim production期中生産量(1)(40)(16)(371)(17)(9)(81)̶(3)(19)(118)(440)As of December 31, 20202020年12月31日時点16 646 152 4,359 314 215 2,162 ̶39 10 2,684 5,229 Interest in reserves held by equity-method affiliates    持分法適用関連会社分As of December 31, 20192019年12月31日時点̶̶2 324 15 ̶5 ̶̶̶22 324  Extensions and discoveries拡張及び発見̶̶̶̶̶̶̶̶̶̶̶̶ Acquisitions and sales買収及び売却̶̶̶̶̶̶̶̶̶̶̶̶ Revisions of previous estimates前年度調整分̶̶(0)56 (2)̶0 ̶̶̶(2)56  Interim production期中生産量̶̶(0)(23)(2)̶(2)̶̶̶(4)(23)As of December 31, 20202020年12月31日時点̶̶2 357 11 ̶4 ̶̶̶16 357 As of December 31, 20202020年12月31日時点16 646 154 4,715 324 215 2,166 ̶39 10 2,700 5,586 
(continued on page 15)（15ページへ続く）
Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia(Europe & NIS)ユ̶ラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州Subtotal小計
Interest in reservesheld by equity-method affiliates持分法適用関連会社Total合計Crude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスINPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20102010年3月31日時点16656791,21236̶433̶41905682,058As of March 31, 20112011年3月31日時点156116998635̶404̶01615231,757As of March 31, 20122012年3月31日時点166514877637̶371̶0874731,514As of March 31, 20132013年3月31日時点156093260436̶306̶̶1623901,375As of March 31, 20142014年3月31日時点145572239939̶543̶01406191,096As of March 31, 20152015年3月31日時点135132244246̶520̶101926111,146As of March 31, 20162016年3月31日時点124691932452̶1,055 ̶51111,143904As of March 31, 20172017年3月31日時点17659182502121251,086 ̶8731,3411,107As of March 31, 20182018年3月31日時点207789532231531,584 ̶2171,8381,002As of March 31, 20192019年3月31日時点187271533,586 244 148 1,500 ̶1 1 1,916 4,462 As of December 31, 20192019年12月31日時点187281523,440 254 198 1,581 ̶8 6 2,012 4,370 As of December 31, 20202020年12月31日時点166461293,037 260 215 1,513 ̶3 2 1,920 3,900 
Crude oil (MMbbl) Gas (Bcf)原油（百万バレル） ガス（十億cf）Proved developed reserves*確認開発埋蔵量*
(continued from page 13)（13ページの続き）
Operating Data事業データ
INPEX CORPORATION Fact Book 202015
Operating Data事業データ
Total合計Japan日本 
Asia & Oceaniaアジア・オセアニア
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州As of March 31, 2010 (Exchange rate: ¥93.04 per U.S.$)2010年3月31日時点（適用為替：1米ドル93.04円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー6,194,451 495,648 1,707,919 1,150,581 2,781,641 58,663 Future production and development costs将来の産出原価及び開発費(2,159,840)(128,497)(648,877)(485,115)(870,046)(27,306)Future income tax expenses将来の法人税(2,548,220)(117,201)(449,341)(149,413)(1,820,429)(11,837)Future net cash flows割引前の将来純キャッシュ・フロー1,486,391 249,950 609,701 516,053 91,166 19,520 10% annual discount for estimated timing of cash flows年間割引率10% (709,314)(121,312)(189,090)(337,759)(56,669)(4,483)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値777,077 128,638 420,611 178,294 34,497 15,037 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,439,084 ̶83,504 ̶1,329,955 25,625 Future production and development costs将来の産出原価及び開発費(509,279)̶(29,380)̶(464,240)(15,659)Future income tax expenses将来の法人税(856,117)̶(19,192)̶(835,636)(1,289)Future net cash flows割引前の将来純キャッシュ・フロー73,688 ̶34,932 ̶30,079 8,677 10% annual discount for estimated timing of cash flows年間割引率10% (37,025)̶(18,384)̶(16,900)(1,740)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値36,663 ̶16,548 ̶13,179 6,937 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計813,740 128,638 437,159 178,294 47,676 21,974 
As of March 31, 2011 (Exchange rate: ¥83.15 per U.S.$)2011年3月31日時点（適用為替：1米ドル83.15円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー6,350,230 539,869 1,590,216 1,383,629 2,806,307 30,209 Future production and development costs将来の産出原価及び開発費(1,913,933)(117,393)(449,736)(494,241)(833,128)(19,434)Future income tax expenses将来の法人税(2,686,247)(139,424)(478,851)(179,337)(1,886,511)(2,125)Future net cash flows割引前の将来純キャッシュ・フロー1,750,050 283,052 661,630 710,051 86,667 8,650 10% annual discount for estimated timing of cash flows年間割引率10% (749,379)(128,557)(174,490)(394,948)(49,389)(1,994)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,000,671 154,495 487,140 315,103 37,278 6,656 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,397,434 ̶101,144 ̶1,276,469 19,821 Future production and development costs将来の産出原価及び開発費(448,355)̶(49,888)̶(390,130)(8,338)Future income tax expenses将来の法人税(866,698)̶(15,943)̶(847,664)(3,091)Future net cash flows割引前の将来純キャッシュ・フロー82,381 ̶35,314 ̶38,676 8,392 10% annual discount for estimated timing of cash flows年間割引率10% (33,395)̶(15,436)̶(17,282)(677)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値48,986 ̶19,878 ̶21,393 7,715 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,049,657 154,495 507,017 315,103 58,671 14,370 
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Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia(Europe & NIS)ユ̶ラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州Subtotal小計
Interest in reservesheld by equity-method affiliates持分法適用関連会社Total合計Crude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスInterest in reserves held by equity-method affiliates持分法適用関連会社分As of March 31, 20102010年3月31日時点̶̶1314̶̶203̶30207314As of March 31, 20112011年3月31日時点̶̶2470̶̶179̶20183471As of March 31, 20122012年3月31日時点̶̶2413̶̶147̶10150413As of March 31, 20132013年3月31日時点̶̶3267̶̶126̶60135267As of March 31, 20142014年3月31日時点̶̶1182̶̶100̶51106183As of March 31, 20152015年3月31日時点̶̶1166̶̶73̶1075167As of March 31, 20162016年3月31日時点̶̶1259̶̶63̶̶̶64259As of March 31, 20172017年3月31日時点̶̶12452̶32̶̶̶35245As of March 31, 20182018年3月31日時点̶̶12595̶5̶̶̶12259As of March 31, 20192019年3月31日時点̶̶1202 11 ̶3 ̶̶̶15 202 As of December 31, 20192019年12月31日時点̶̶1184 13 ̶4 ̶̶̶18 184 As of December 31, 20202020年12月31日時点̶̶1169 9 ̶1 ̶̶̶11 169 
(continued from page 14)（14ページの続き）Oil and Gas Reserves埋蔵量データ
*確認埋蔵量のうち、既存の坑井及び施設を利用して回収することができる量*  The amount of proved reserves expected to be recovered through existing wells with existing equipment and operating methods
Crude oil (MMbbl) Gas (Bcf)原油（百万バレル） ガス（十億cf）
(¥ million  百万円)Standardized measure of discounted future net cash flows related to proved oil and gas reserves確認埋蔵量に関する標準化された測定方法による将来の純キャッシュ・フローの割引現在価値
Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia(Europe & NIS)ユ̶ラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州Total合計Crude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスCrude oil原油GasガスINPEX CORPORATION and consolidated subsidiaries連結対象会社分As of March 31, 20112011年3月31日時点̶̶16222176̶̶̶01192223As of March 31, 20122012年3月31日時点̶̶207 5,732 152 ̶̶̶̶108 358 5,840 As of March 31, 20132013年3月31日時点̶̶176 4,904 147 42 57 ̶9 134 389 5,079 As of March 31, 20142014年3月31日時点6 259 178 4,906 147 27 199 ̶9 149 539 5,341 As of March 31, 20152015年3月31日時点6 252 182 4,681 146 27 175 ̶3 151 512 5,112 As of March 31, 20162016年3月31日時点6 252 168 4,483 132 21 620 ̶5 40 931 4,796 As of March 31, 20172017年3月31日時点̶̶166 4,374 5 ̶659 ̶2 26 832 4,400 As of March 31, 20182018年3月31日時点̶̶174 4,578 13 ̶704 ̶3 2 894 4,581 As of March 31, 20192019年3月31日時点̶̶37 1,382 45 ̶843 ̶3 5 929 1,387 As of December 31, 20192019年12月31日時点̶̶22 1,296 47 ̶832 ̶38 22 939 1,318 As of December 31, 20202020年12月31日時点̶̶24 1,321 54 ̶649 ̶36 8 763 1,330 Interest in reserves held by equity-method affiliates持分法適用関連会社分As of March 31, 20112011年3月31日時点̶̶̶̶̶̶̶̶1010As of March 31, 20122012年3月31日時点̶̶0 25 ̶̶̶̶̶̶0 25As of March 31, 20132013年3月31日時点̶̶(0)47 ̶̶16 ̶̶̶16 47 As of March 31, 20142014年3月31日時点̶̶1 116 ̶̶15 ̶̶̶15 116 As of March 31, 20152015年3月31日時点̶̶1 136 ̶̶15 ̶̶̶15 136 As of March 31, 20162016年3月31日時点̶̶0 66 ̶̶4 ̶̶̶4 66 As of March 31, 20172017年3月31日時点̶̶1 140 0 ̶0 ̶̶̶1 140 As of March 31, 20182018年3月31日時点̶̶1 134 3 ̶̶̶̶̶3 134 As of March 31, 20192019年3月31日時点̶̶1 128 2 ̶3 ̶̶̶5 128 As of December 31, 20192019年12月31日時点̶̶1 140 2 ̶2 ̶̶̶4 140 As of December 31, 20202020年12月31日時点̶̶0 188 2 ̶3 ̶̶̶5 188 
Crude oil (MMbbl) Gas (Bcf)原油（百万バレル） ガス（十億cf）Proved undeveloped reserves確認未開発埋蔵量
株式会社INPEX ファクトブック 202016
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As of March 31, 2012 (Exchange rate: ¥82.14 per U.S.$)2012年3月31日時点（適用為替：1米ドル82.14円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー12,233,012 841,649 6,370,993 1,585,214 3,399,632 35,524 Future production and development costs将来の産出原価及び開発費(3,931,090)(161,211)(2,427,986)(378,658)(940,940)(22,295)Future income tax expenses将来の法人税(4,804,117)(242,127)(1,921,324)(267,983)(2,370,085)(2,597)Future net cash flows割引前の将来純キャッシュ・フロー3,497,805 438,311 2,021,683 938,573 88,606 10,632 10% annual discount for estimated timing of cash flows年間割引率10%(2,253,957)(219,401)(1,445,374)(538,165)(47,863)(3,153)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,243,848 218,910 576,308 400,408 40,743 7,478 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,495,119 ̶105,683 ̶1,379,368 10,069 Future production and development costs将来の産出原価及び開発費(456,429)̶(56,512)̶(394,701)(5,216)Future income tax expenses将来の法人税(954,555)̶(20,714)̶(932,820)(1,021)Future net cash flows割引前の将来純キャッシュ・フロー84,136 ̶28,457 ̶51,846 3,832 10% annual discount for estimated timing of cash flows年間割引率10%(29,669)̶(11,663)̶(17,761)(246)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値54,466 ̶16,794 ̶34,086 3,586 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,298,314 218,910 593,103 400,408 74,829 11,065 
As of March 31, 2013 (Exchange rate: ¥93.99 per U.S.$)2013年3月31日時点（適用為替：1米ドル93.99円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー12,788,034 960,873 6,238,258 1,702,492 3,736,754 149,658 Future production and development costs将来の産出原価及び開発費(4,119,855) (176,309) (2,242,999) (438,236) (1,188,643) (73,669) Future income tax expenses将来の法人税(5,057,270) (277,685) (2,078,271) (265,673) (2,417,554) (18,087) Future net cash flows割引前の将来純キャッシュ・フロー3,610,909 506,879 1,916,987 998,583 130,557 57,903 10% annual discount for estimated timing of cash flows年間割引率10%(2,264,436) (244,270) (1,369,592) (545,223) (80,178) (25,172) 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,346,473 262,609 547,396 453,359 50,379 32,731 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,696,889 ̶168,545 ̶1,470,807 57,537 Future production and development costs将来の産出原価及び開発費(566,833) ̶(76,271) ̶(446,072) (44,490) Future income tax expenses将来の法人税(974,897) ̶(47,627) ̶(925,608) (1,662) Future net cash flows割引前の将来純キャッシュ・フロー155,159 ̶44,647 ̶99,127 11,385 10% annual discount for estimated timing of cash flows年間割引率10%(63,444) ̶(31,381) ̶(28,798) (3,265) 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値91,715 ̶13,266 ̶70,330 8,119 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,438,188 262,609 560,661 453,359 120,708 40,850 
As of March 31, 2014 (Exchange rate: ¥102.92 per U.S.$)2014年3月31日時点（適用為替：1米ドル102.92円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー17,341,495 1,216,700 6,010,999 1,830,647 8,114,992 168,157 Future production and development costs将来の産出原価及び開発費(5,214,355) (232,106) (2,022,074) (475,798) (2,430,435) (53,942) Future income tax expenses将来の法人税(7,756,030) (390,578) (1,791,151) (294,204) (5,270,507) (9,589) Future net cash flows割引前の将来純キャッシュ・フロー4,371,111 594,016 2,197,774 1,060,645 414,050 104,627 10% annual discount for estimated timing of cash flows年間割引率10%(2,724,139) (353,477) (1,399,641) (638,328) (301,903) (30,790) 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,646,972 240,539 798,133 422,316 112,146 73,837 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,502,675 ̶172,531 ̶1,283,450 46,694 Future production and development costs将来の産出原価及び開発費(559,626) ̶(100,520) ̶(422,426) (36,681) Future income tax expenses将来の法人税(807,541) ̶(37,642) ̶(768,867) (1,032) Future net cash flows割引前の将来純キャッシュ・フロー135,508 ̶34,369 ̶92,158 8,981 10% annual discount for estimated timing of cash flows年間割引率10%(34,528) ̶(18,128) ̶(13,834) (2,566) 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値100,980 ̶16,242 ̶78,324 6,414 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,747,952 240,539 814,375 422,316 190,471 80,252 
As of March 31, 2015 (Exchange rate: ¥120.27 per U.S.$)2015年3月31日時点（適用為替：1米ドル120.27円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー16,826,527 1,373,830 6,518,619 1,787,325 6,935,269 211,485 Future production and development costs将来の産出原価及び開発費(5,420,750)(279,282)(2,143,400)(563,719)(2,373,944)(60,405)Future income tax expenses将来の法人税(6,619,499)(379,336)(1,792,785)(235,731)(4,200,930)(10,718)Future net cash flows割引前の将来純キャッシュ・フロー4,786,278 715,212 2,582,434 987,875 360,395 140,363 10% annual discount for estimated timing of cash flows年間割引率10%(2,740,756)(414,963)(1,445,090)(552,389)(288,615)(39,699)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値2,045,522 300,249 1,137,344 435,486 71,780 100,663 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー1,283,858 ̶384,759 ̶890,520 8,579 Future production and development costs将来の産出原価及び開発費(578,892)̶(117,127)̶(453,308)(8,457)Future income tax expenses将来の法人税(538,253)̶(128,356)̶(409,898)̶Future net cash flows割引前の将来純キャッシュ・フロー166,713 ̶139,276 ̶27,315 122 10% annual discount for estimated timing of cash flows年間割引率10%(82,534)̶(78,062)̶(4,453)(19)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値84,179 ̶61,214 ̶22,862 103 
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計2,129,701 300,249 1,198,557 435,486 94,643 100,766 
As of March 31, 2016 (Exchange rate: ¥112.69 per U.S.$)2016年3月31日時点（適用為替：1米ドル112.69円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー14,328,314 955,158 3,742,129 809,247 8,753,540 68,239 Future production and development costs将来の産出原価及び開発費(6,088,070)(211,896)(1,716,381)(511,299)(3,612,235)(36,260)Future income tax expenses将来の法人税(5,531,024)(238,524)(334,222)(27,372)(4,930,907)̶Future net cash flows割引前の将来純キャッシュ・フロー2,709,219 504,739 1,691,527 270,576 210,399 31,979 10% annual discount for estimated timing of cash flows年間割引率10%(1,728,279)(289,832)(1,065,735)(131,228)(233,386)(8,098)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値980,941 214,907 625,792 139,347 (22,987)23,881 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー624,922 ̶265,685 ̶359,237 ̶Future production and development costs将来の産出原価及び開発費(339,324)̶(136,523)̶(200,362)(2,439)Future income tax expenses将来の法人税(196,338)̶(52,679)̶(143,658)̶Future net cash flows割引前の将来純キャッシュ・フロー89,260 ̶76,483 ̶15,216 (2,439)10% annual discount for estimated timing of cash flows年間割引率10%(42,538)̶(41,347)̶(1,305)113 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値46,723 ̶35,136 ̶13,912 (2,325)
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,027,663 214,907 660,929 139,347 (9,075)21,556 
As of March 31, 2017 (Exchange rate: ¥112.20 per U.S.$)2017年3月31日時点（適用為替：1米ドル112.20円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー14,741,958 807,066 3,461,061 986,542 9,428,165 59,125 Future production and development costs将来の産出原価及び開発費(6,107,307)(205,172)(1,575,183)(488,261)(3,808,367)(30,323)Future income tax expenses将来の法人税(5,640,443)(197,443)(229,642)(76,036)(5,137,321)̶Future net cash flows割引前の将来純キャッシュ・フロー2,994,209 404,450 1,656,236 422,245 482,477 28,801 10% annual discount for estimated timing of cash flows年間割引率10%(1,703,796)(223,457)(906,048)(212,187)(355,021)(7,083)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,290,413 180,994 750,188 210,057 127,456 21,718 
(continued from page 15)（15ページの続き）
Operating Data事業データ
INPEX CORPORATION Fact Book 202017
Operating Data事業データ
(continued on page 18)（18ページへ続く）
(continued from page 16)（16ページの続き）Oil and Gas Reserves埋蔵量データ
Total合計Japan日本 
Asia & Oceaniaアジア・オセアニア
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー436,409 ̶250,066 10,539 175,804 ̶Future production and development costs将来の産出原価及び開発費(244,249)̶(148,254)(5,956)(87,531)(2,507)Future income tax expenses将来の法人税(132,993)̶(44,227)(2,315)(86,451)̶Future net cash flows割引前の将来純キャッシュ・フロー59,168 ̶57,584 2,268 1,823 (2,507)10% annual discount for estimated timing of cash flows年間割引率10%(31,947)̶(32,659)(291)886 117 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値27,220 ̶24,925 1,977 2,709 (2,391)
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,317,633 180,994 775,113 212,034 130,165 19,327 
As of March 31, 2018 (Exchange rate: ¥106.27 per U.S.$)2018年3月31日時点（適用為替：1米ドル106.27円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー20,320,892 956,171 4,159,906 1,288,985 13,878,650 37,181 Future production and development costs将来の産出原価及び開発費(7,498,996)(240,311)(1,283,385)(555,837)(5,392,276)(27,186)Future income tax expenses将来の法人税(8,673,758)(231,110)(645,491)(125,913)(7,671,244)̶Future net cash flows割引前の将来純キャッシュ・フロー4,148,139 484,749 2,231,030 607,235 815,130 9,995 10% annual discount for estimated timing of cash flows年間割引率10%(2,262,996)(270,112)(1,087,087)(336,086)(567,643)(2,068)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,885,143 214,637 1,143,943 271,149 247,487 7,926 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー322,705 ̶252,543 39,268 30,894 ̶Future production and development costs将来の産出原価及び開発費(179,806)̶(134,182)(13,809)(28,863)(2,952)Future income tax expenses将来の法人税(68,556)̶(51,100)(14,590)(2,866)̶Future net cash flows割引前の将来純キャッシュ・フロー74,343 ̶67,260 10,869 (834)(2,952)10% annual discount for estimated timing of cash flows年間割引率10%(40,500)̶(38,494)(3,720)1,576 137 
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値33,842 ̶28,766 7,149 742 (2,815)
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,918,985 214,637 1,172,709 278,298 248,229 5,112 
As of March 31, 2019 (Exchange rate: ¥111.01 per U.S.$)2019年3月31日時点（適用為替：1米ドル111.01円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー25,922,462 1,105,257 4,242,598 2,065,747 18,476,549 32,311 Future production and development costs将来の産出原価及び開発費(8,885,792)(278,440)(1,465,150)(800,391)(6,324,795)(17,016)Future income tax expenses将来の法人税(12,045,321)(261,294)(424,802)(254,837)(11,104,387)̶Future net cash flows割引前の将来純キャッシュ・フロー4,991,349 565,524 2,352,646 1,010,519 1,047,366 15,294 10% annual discount for estimated timing of cash flows年間割引率10%(2,632,985)(313,789)(1,072,561)(540,909)(703,838)(1,887)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値2,358,365 251,735 1,280,085 469,609 343,528 13,407 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー444,793 ̶306,909 97,347 40,537 ̶Future production and development costs将来の産出原価及び開発費(189,571)̶(117,769)(38,812)(32,990)̶Future income tax expenses将来の法人税(119,084)̶(81,958)(33,354)(3,772)̶Future net cash flows割引前の将来純キャッシュ・フロー136,137 ̶107,182 25,181 3,775 ̶10% annual discount for estimated timing of cash flows年間割引率10%(64,481)̶(57,147)(6,909)(426)̶
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値71,657 ̶50,035 18,272 3,349 ̶
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計2,430,021 251,735 1,330,120 487,882 346,878 13,407 
As of December 31, 2019 (Exchange rate: ¥109.55 per U.S.$)2019年12月31日時点（適用為替：1米ドル109.55円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー24,132,722 1,132,190 3,354,557 1,912,255 17,447,487 286,233 Future production and development costs将来の産出原価及び開発費(8,733,617)(334,782)(1,341,047)(706,959)(6,162,938)(187,891)Future income tax expenses将来の法人税(11,042,289)(253,444)(248,020)(234,518)(10,295,017)(11,290)Future net cash flows割引前の将来純キャッシュ・フロー4,356,817 543,964 1,765,491 970,779 989,532 87,052 10% annual discount for estimated timing of cash flows年間割引率10%(2,166,114)(298,301)(686,627)(509,475)(625,989)(45,723)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値2,190,703 245,664 1,078,864 461,304 363,543 41,329 
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー455,408 ̶314,808 104,199 36,401 ̶Future production and development costs将来の産出原価及び開発費(156,912)̶(111,093)(17,722)(28,096)̶Future income tax expenses将来の法人税(118,401)̶(76,387)(38,745)(3,269)̶Future net cash flows割引前の将来純キャッシュ・フロー180,095 ̶127,328 47,732 5,035 ̶10% annual discount for estimated timing of cash flows年間割引率10%(75,027)̶(62,093)(12,184)(749)̶
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値105,069 ̶65,235 35,548 4,286 ̶
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計2,295,772 245,664 1,144,099 496,852 367,829 41,329 
As of December 31, 2020 (Exchange rate: ¥103.52 per U.S.$)2020年12月31日時点（適用為替：1米ドル103.52円）INPEX CORPORATION and consolidated subsidiaries連結対象会社分Future cash inflows将来キャッシュ・インフロー13,620,229 789,800 2,157,411 1,190,377 9,328,481 154,159 Future production and development costs将来の産出原価及び開発費(6,358,718)(254,531)(1,129,013)(622,464)(4,207,125)(145,587)Future income tax expenses将来の法人税(4,941,757)(174,850)(74,682)(108,183)(4,583,545)(498)Future net cash flows割引前の将来純キャッシュ・フロー2,319,754 360,420 953,717 459,730 537,812 8,075 10% annual discount for estimated timing of cash flows年間割引率10%(1,128,715)(190,828)(359,024)(236,386)(332,935)(9,542)
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値1,191,039 169,591 594,693 223,344 204,877 (1,466)
Share of equity-method investees’ standardized measure of discounted future net cash flows持分法適用関連会社分
Future cash inflows将来キャッシュ・インフロー300,851 ̶234,521 48,972 17,627 ̶Future production and development costs将来の産出原価及び開発費(127,026)̶(92,956)(16,355)(17,715)̶Future income tax expenses将来の法人税(65,795)̶(46,641)(18,375)(778)̶Future net cash flows割引前の将来純キャッシュ・フロー108,030 ̶94,654 14,242 (867)̶10% annual discount for estimated timing of cash flows年間割引率10%(44,506)̶(41,547)(3,165)206 ̶
Standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値63,523 ̶53,107 11,077 (661)̶
Total of standardized measure of discounted future net cash flows標準化された測定方法による将来の純キャッシュ・フローの割引現在価値合計1,254,562 169,591 647,800 234,421 204,216 (1,466)
(¥ million  百万円)
Notes: 1.  The reserves cover most of the INPEX Group projects including the equity-method affiliates. The reserves from the year ended March 31, 2009 to the year ended March 31, 2010 were evaluated by DeGolyer & MacNaughton, and from the year ended March 31, 2011 the reserves of projects that are considered to materially influence INPEX's future results, such as the ones with large investments, are evaluated by DeGolyer & MacNaughton, while the others are done internally. 2.  Proved reserves are evaluated in accordance with SEC regulations. 3.  Probable reserves are not disclosed from this time in a manner consistent with common industry standards. 4.  Disclosure details for the standardized measure of discounted future net cash flows related to proved oil and gas reserves and movements during the fiscal year under review are presented in accordance with the rules and regulations stipulated by the U.S. Financial Accounting Standards Board, and are reported in accordance with Accounting Standard Codification Topic 932 “Extractive activities–Oil and Gas.” 5.  Crude oil includes condensate and LPG. 6. The exchange rates as of the end of each fiscal year are the TTM rates per U.S.$. 7. The figures in these tables include non-controlling interests.
株式会社INPEX ファクトブック 202018
(¥ million  百万円)Changes in the standardized measure of discounted future net cash flows related to proved oil and gas reserves確認埋蔵量に関する標準化された測定方法による将来の純キャッシュ・フローの割引現在価値の期中変動
INPEX CORPORATION and consolidated subsidiaries連結対象会社分Total合計Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州
Equity-method affiliates持分法適用関連会社分Standardized measure, end of period (As of March 31, 2009)期末割引現在価値（2009年3月31日）613,273177,454326,74559,5139,96013,32626,275 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(477,438)(37,617)(201,573)(27,132)(98,361)(6,986)(105,769) 
Net change in prices and production costs油ガス価及び生産単価の純増減1,257,233(70,134)331,816185,126460,1728,309341,944 Development cost incurred発生した開発費127,4213,11486,03213,56813,13246511,109 Changes in estimated development costs将来の開発費の変動(61,607)(3,552)(11,651)(47,379)1,322(537)189 Revisions of previous quantity estimates埋蔵量の変動71,242(1,055)36,27218,02826,3643,395(11,761) Accretion of discount時間の経過による増加187,99524,93852,92810,17756,6801,50641,765 Net change in income taxes法人税の変動(753,861)20,376(95,799)(27,639)(431,991)(4,313)(214,494) Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良465̶465̶̶̶̶Otherその他(150,983)15,114(104,624)(5,968)(2,781)(128)(52,595) Standardized measure, end of period (As of March 31, 2010)期末割引現在価値（2010年3月31日）813,740 128,638 420,611 178,294 34,497 15,037 36,663 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(508,519)(19,129)(208,617)(48,858)(124,814)(3,314)(103,787)
Net change in prices and production costs油ガス価及び生産単価の純増減797,080 59,277 299,991 107,142 179,087 (2,782)154,364 Development cost incurred発生した開発費134,197 1,721 63,518 51,787 8,690 63 8,418 Changes in estimated development costs将来の開発費の変動(27,919)(150)780 (27,861)6,911 142 (7,741)Revisions of previous quantity estimates埋蔵量の変動62,352 6,043 (16,484)56,464 4,590 1,615 10,124 Accretion of discount時間の経過による増加63,903 10,478 29,153 17,841 2,729 511 3,191 Net change in income taxes法人税の変動(200,877)(18,722)(50,824)(14,988)(70,871)2,676 (48,148)Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良2,146 ̶(6,198)14,190 ̶(5,846)̶Otherその他(86,445)(13,661)(44,791)(18,908)(3,541)(1,446)(4,098)Standardized measure, end of period (As of March 31, 2011)期末割引現在価値（2011年3月31日）1,049,657 154,495 487,140 315,103 37,278 6,656 48,986 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(648,701)(32,415)(270,764)(61,107)(144,052)(2,498)(137,864)
Net change in prices and production costs油ガス価及び生産単価の純増減874,831 108,573 (12,363)179,668 370,315 (2,130)230,767 Development cost incurred発生した開発費115,751 836 30,591 59,592 14,074 108 10,550 Changes in estimated development costs将来の開発費の変動(116,174)2,649 (123,979)16,381 (3,522)(2,129)(5,573)Revisions of previous quantity estimates埋蔵量の変動177,545 11,602 323,612 (115,612)(2,592)7,315 (46,780)Accretion of discount時間の経過による増加89,588 13,717 35,257 32,490 3,716 468 3,940 Net change in income taxes法人税の変動(323,253)(38,653)16,145 (22,266)(229,239)(275)(48,964)Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良91,841 ̶96,623 ̶(4,782)̶̶Otherその他(12,771)(1,894)(5,953)(3,840)(453)(36)(595)Standardized measure, end of period (As of March 31, 2012)期末割引現在価値（2012年3月31日）1,298,314 218,910 576,308 400,408 40,743 7,478 54,466 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(904,376) (51,736) (350,624) (79,754) (219,353) (2,909) (200,000) 
Net change in prices and production costs油ガス価及び生産単価の純増減41,698 28,997 182,985 (40,912) (94,700) (633) (34,040) Development cost incurred発生した開発費292,003 1,439 200,104 58,771 18,513 2,193 10,984 Changes in estimated development costs将来の開発費の変動(113,146) 77 (11,257) (26,155) (74,590) (2,047) 827 Revisions of previous quantity estimates埋蔵量の変動(58,467) 6,794 (290,058) 11,846 134,603 3,592 74,757 Accretion of discount時間の経過による増加146,696 21,769 67,945 46,600 4,552 848 4,982 Net change in income taxes法人税の変動494,588 4,778 88,362 24,740 234,733 (827) 142,803 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良53,039 ̶̶̶̶23,962 29,077 Otherその他187,837 31,581 83,630 57,816 5,878 1,075 7,858 Standardized measure, end of period (As of March 31, 2013)期末割引現在価値（2013年3月31日）1,438,188 262,609 547,396 453,359 50,379 32,731 91,715 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(940,350) (64,803) (307,805) (87,312) (240,554) (5,615) (234,260) 
Net change in prices and production costs油ガス価及び生産単価の純増減(767,958) (67,001) (370,213) (47,267) (249,342) (1,478) (32,656) Development cost incurred発生した開発費503,931 ̶377,559 49,610 31,463 27,595 17,704 Changes in estimated development costs将来の開発費の変動(49,289) (4,216) 9,002 (19,356) (21,508) (2,474) (10,737) Revisions of previous quantity estimates埋蔵量の変動857,625 48,174 99,410 (32,763) 724,450 6,518 11,837 Accretion of discount時間の経過による増加176,596 24,516 83,103 48,498 5,944 5,756 8,779 Net change in income taxes法人税の変動389,751 16,311 308,170 14,459 (196,868) 7,794 239,886 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良3,398 ̶̶̶3,398 ̶̶Otherその他136,061 24,950 51,511 43,087 4,786 3,011 8,714 Standardized measure, end of period (As of March 31, 2014)期末割引現在価値（2014年3月31日）1,747,952 240,539 798,133 422,316 112,146 73,837 100,980 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(933,684)(46,427)(265,325)(70,193)(267,861)(17,081)(266,797)
Net change in prices and production costs油ガス価及び生産単価の純増減(1,289,599)12,487 (409,334)(170,468)(591,895)(25,668)(104,722)Development cost incurred発生した開発費431,664 1,822 318,607 24,570 53,866 12,129 20,670 Changes in estimated development costs将来の開発費の変動(198,468)(7,012)20,083 (38,914)(54,786)(9,473)(108,367)Revisions of previous quantity estimates埋蔵量の変動210,367 (4,584)94,716 109,456 (58,664)43,889 25,554 Accretion of discount時間の経過による増加213,577 25,354 112,742 47,880 13,732 8,624 5,245 Net change in income taxes法人税の変動1,503,911 37,521 179,852 39,546 850,306 2,092 394,593 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良153,338 ̶153,338 ̶̶̶̶Otherその他290,644 40,550 134,532 71,292 14,935 12,313 17,023 
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注: 1.  埋蔵量は、持分法適用関連会社を含む当社グループの主要なプロジェクトを対象とし、2009年3月期から2010年3月期まではDeGolyer＆MacNaughton社にて、2011年3月期からは、開発投資が巨額であるなど、将来の業績への影響が大きいと考えられるプロジェクトについては、DeGolyer&MacNaughton社にて、その他については自社にて評価・算定した数量。 2. 確認埋蔵量は、米国証券取引委員会（SEC） 規則に従い評価した数量。 3.  従来推定埋蔵量の値を開示していたが、国内外同業他社の開示範囲等を勘案し、今回より数値を非開示としている。 4.  確認埋蔵量に関する標準化された測定方法による将来の純キャッシュ・フローの割引現在価値及び当期における変動についての開示内容は米国財務会計基準審議会が定める規則に従っており、会計基準編纂書 932「採取活動-石油及びガス」に準拠している。 5. 原油にはコンデンセート及びLPGを含む。 6. 為替レートは各期末公示仲値を使用している。 7. 表中の数値は、非支配株主に帰属する数量または金額を含む。
Operating Data事業データ
INPEX CORPORATION Fact Book 202019
Operating Data事業データ
INPEX CORPORATION and consolidated subsidiaries連結対象会社分Total合計Japan日本
Asia & Oceaniaアジア・オセアニア
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）
Middle East & Africa中東・アフリカAmericas米州
Equity-method affiliates持分法適用関連会社分Standardized measure, end of period (As of March 31, 2015)期末割引現在価値（2015年3月31日）2,129,701 300,249 1,137,344 435,486 71,780 100,663 84,179 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(768,379)(54,884)(239,067)(60,447)(188,194)(22,991)(202,796)
Net change in prices and production costs油ガス価及び生産単価の純増減(2,528,189)(100,431)(895,506)(380,907)(863,121)(32,889)(255,335)Development cost incurred発生した開発費342,036 2,363 198,989 40,430 45,422 4,054 50,778 Changes in estimated development costs将来の開発費の変動(164,656)2,442 (197,855)(30,972)3,105 (1,536)60,161 Revisions of previous quantity estimates埋蔵量の変動90,888 (2,236)(47,750)53,845 63,138 (31,098)54,988 Accretion of discount時間の経過による増加203,264 24,851 115,398 41,403 7,386 7,814 6,411 Net change in income taxes法人税の変動1,894,806 61,474 625,755 68,051 879,129 6,755 253,642 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良(37,108)̶̶̶(37,108)̶̶Otherその他(134,700)(18,923)(71,516)(27,540)(4,524)(6,892)(5,305)Standardized measure, end of period (As of March 31, 2016)期末割引現在価値（2016年3月31日）1,027,663 214,907 625,792 139,347 (22,987) 23,881 46,723 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(524,974)(42,940)(132,557)(36,591)(194,922)(7,831)(110,133)
Net change in prices and production costs油ガス価及び生産単価の純増減(11,168)(28,955)(45,984)24,732 60,325 406 (21,696)Development cost incurred発生した開発費393,977 3,521 241,185 48,234 70,091 3,047 27,898 Changes in estimated development costs将来の開発費の変動(110,918)(1,212)(124,205)4,730 5,103 (2,177)6,843 Revisions of previous quantity estimates埋蔵量の変動193,213 (4,134)43,360 21,405 115,777 3,096 13,710 Accretion of discount時間の経過による増加122,860 18,788 81,347 16,003 1,066 1,878 3,778 Net change in income taxes法人税の変動227,578 21,953 61,551 (7,153)92,902 ̶58,325 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良1,977 ̶̶̶̶̶1,977 Otherその他(2,575)(934)(301)(650)100 (587)(203)Standardized measure, end of period (As of March 31, 2017)期末割引現在価値（2017年3月31日）1,317,633 180,994 750,188 210,057 127,456 21,718 27,220 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(458,509)(27,845)(79,344)(39,440)(204,388)(7,551)(99,941)
Net change in prices and production costs油ガス価及び生産単価の純増減918,434 14,525 509,034 82,558 316,359 1,558 (5,600)Development cost incurred発生した開発費245,009 239 152,211 13,845 58,416 2,158 18,140 Changes in estimated development costs将来の開発費の変動(166,177)776 (87,391)(12,651)(62,085)(949)(3,878)Revisions of previous quantity estimates埋蔵量の変動424,414 51,009 41,026 15,164 296,171 (10,503)31,546 Accretion of discount時間の経過による増加133,053 15,246 81,497 19,381 13,059 1,675 2,195 Net change in income taxes法人税の変動(472,813)(10,740)(168,784)(8,673)(350,749)535 65,598 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良45,488 ̶(14,495)̶59,983 ̶̶Otherその他(67,548)(9,566)(40,000)(9,093)(6,736)(714)(1,439)Standardized measure, end of period (As of March 31, 2018)期末割引現在価値（2018年3月31日）1,918,985 214,637 1,143,943 271,149 247,487 7,926 33,842 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(504,942)(50,441)(62,551)(49,274)(323,245)(3,390)(16,042)
Net change in prices and production costs油ガス価及び生産単価の純増減1,211,922 60,828 177,547 135,938 786,349 5,977 45,283 Development cost incurred発生した開発費178,909 228 93,130 9,385 69,088 3,189 3,890 Changes in estimated development costs将来の開発費の変動(139,471)(912)(42,727)(86,402)(4,653)(142)(4,635)Revisions of previous quantity estimates埋蔵量の変動591,441 (619)42,462 199,267 323,480 (2,022)28,872 Accretion of discount時間の経過による増加175,756 18,962 102,883 24,698 25,330 923 2,959 Net change in income taxes法人税の変動(890,833)(522)(28,287)(47,246)(791,346)591 (24,022)Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良100,072 ̶100,072 ̶̶̶̶Otherその他(211,817)9,574 (246,387)12,094 11,039 354 1,509 Standardized measure, end of period (As of March 31, 2019)期末割引現在価値（2019年3月31日）2,430,021 251,735 1,280,085 469,609 343,528 13,407 71,657 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(594,355)(44,239)(136,103)(60,267)(327,885)(4,818)(21,043)
Net change in prices and production costs油ガス価及び生産単価の純増減(726,549)8,100 (258,383)(60,063)(416,751)(1,361)1,910 Development cost incurred発生した開発費119,929 641 60,670 14,496 38,932 650 4,540 Changes in estimated development costs将来の開発費の変動41,234 (323)16,991 (7,171)40,594 (803)(8,054)Revisions of previous quantity estimates埋蔵量の変動332,568 351 (30,022)55,374 253,367 2,158 51,340 Accretion of discount時間の経過による増加195,328 21,825 92,240 42,292 31,873 906 6,191 Net change in income taxes法人税の変動498,195 10,885 70,221 13,211 404,403 ̶(524)Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良31,359 ̶̶̶̶31,365 (6)Otherその他(31,960)(3,311)(16,836)(6,176)(4,518)(176)(942)Standardized measure, end of period (As of December 31, 2019)期末割引現在価値（2019年12月31日）2,295,772 245,664 1,078,864 461,304 363,543 41,329 105,069 
Changes resulting from:変動要因：Sales and transfers of oil and gas produced, net of production costs産出された油・ガスの販売または移転(824,730)(52,518)(244,641)(79,890)(398,024)(20,471)(29,186)
Net change in prices and production costs油ガス価及び生産単価の純増減(2,357,943)(63,926)(416,848)(282,659)(1,485,853)(42,227)(66,431)Development cost incurred発生した開発費170,496 555 75,118 23,598 43,279 19,045 8,901 Changes in estimated development costs将来の開発費の変動(30,077)(1,029)(33,563)(9,719)4,883 15,739 (6,389)Revisions of previous quantity estimates埋蔵量の変動(282,884)183 (23,789)48,572 (305,127)(20,713)17,991 Accretion of discount時間の経過による増加194,215 19,618 92,296 38,499 31,216 3,771 8,815 Net change in income taxes法人税の変動2,216,081 34,568 126,641 49,031 1,970,969 4,335 30,537 Extensions, discoveries and improved recoveries拡張及び発見、産出技術の改良̶̶̶̶̶̶̶Otherその他(126,367)(13,522)(59,384)(25,395)(20,011)(2,275)(5,783)Standardized measure, end of period (As of December 31, 2020)期末割引現在価値（2020年12月31日）1,254,562 169,591 594,693 223,344 204,877 (1,466)63,523
*  2010年3月31日、2011年3月31日、2012年3月31日、2013年3月31日、2014年3月31日、2015年3月31日、2016年3月31日、2017年3月31日、2018年3月31日、2019年3月31日、2019年12月31日及び2020年12月31日時点の為替レートはそれぞれ期末公示仲値の1米ドル93.04円、83.15円、82.14円、93.99円、102.92円、120.27円、112.69円、112.20円、106.27円、111.01円、109.55円、103.52円を使用。
注: 1.  確認埋蔵量の掲載内容は米国財務会計基準審議会の定める規則に従っており、2009年3月期までは財務会計基準書(Statement of Financial Accounting Standards No. 69)、 2010年3月期以降は会計基準編纂書 932「採取活動 - 石油及びガス」に準拠。 2.  表中の数値は、非支配株主に帰属する金額を含む。
*  The exchange rates as of March 31, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and December 31, 2019 and 2020 are the TTM rate of ¥93.04, ¥83.15, ¥82.14, ¥93.99, ¥102.92, ¥120.27, ¥112.69, ¥112.20, ¥106.27, ¥111.01, ¥109.55 and ¥103.52 per U.S.$, respectively.
Notes: 1.  Disclosure items of proved reserves are based on Statement of Financial Accounting Standards No.69 through the year ended March 31, 2009. Since the year ended March 31, 2010, these are based on Accounting Standard Codification Topic 932 “Extractive activities–Oil and Gas.” 2.  The figures in these tables include non-controlling interests.
(continued from page 18)（18ページの続き）Oil and Gas Reserves埋蔵量データ
(¥ million  百万円)
株式会社INPEX ファクトブック 202020
(Thousand bbl/day千バレル／日）
(MMcf/day百万 cf ／日）
(Thousand boe/day原油換算千バレル／日）
Oil and Gas Net Production*ネット生産量データ*
Oil / Condensate / LPG原油・コンデンセート・LPG
Natural gas天然ガス
Crude oil and natural gas原油・天然ガス合計
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本4.53.93.83.93.63.23.23.53.73.53.13.0
Asia & Oceaniaアジア・オセアニア47.765.162.558.045.840.647.835.821.218.747.542.5
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国） 26.927.925.025.126.127.031.629.637.540.741.046.4
Middle East & Africa中東・アフリカ73.373.084.384.484.484.8161.1176.3176.2225.6240.9221.5
Americas米州5.52.30.10.10.10.55.55.63.91.88.27.6
Subtotal小計158.0172.2175.7171.5160.0156.1249.2250.7242.6290.3340.7321.1
Proportional interest in production by equity-method affi liates
持分法適用関連会社分60.467.475.474.484.986.690.097.686.513.011.710.0
Total合計218.3239.6251.2245.9244.9242.7339.2348.3329.1303.3352.4331.1
Annual production (MMbbl)年間生産量（百万バレル） 79.787.591.989.889.488.6124.2127.1120.1110.796.9121.2
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本155.1 128.7 127.6133.7125.5113.9119.7132.0145.6131.6118.6110.5
Asia & Oceaniaアジア・オセアニア880.5 836.0 665.0586.4602.8596.5666.8614.8326.9346.5958.6 1,012.8
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国） ̶̶̶̶̶̶̶5.321.427.424.524.8
Middle East & Africa中東・アフリカ̶̶̶̶̶̶̶̶̶̶̶0.0
Americas米州86.9 81.1 72.490.9107.4103.287.3116.5107.789.863.552.7
Subtotal小計1,122.6 1,045.9 865.0811.0835.7813.7873.8868.6601.6595.3 1,165.2 1,200.9
Proportional interest in production by equity-method affi liates
持分法適用関連会社分̶56.6 62.752.440.766.459.154.148.153.861.263.7
Total合計1,122.6 1,102.5 927.7 863.4876.4880.0932.9922.7649.7649.0 1,226.4 1,264.6
Annual production (Bcf)年間生産量（十億cf）409.7 402.4 339.5315.1319.9321.2341.4336.8237.1236.9337.3462.8
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本30.425.327.729.027.224.625.728.331.128.225.423.7
Asia & Oceaniaアジア・オセアニア194.5204.4189.5169.4159.9154.3174.0152.582.784.4231.9238.4
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国） 26.927.925.025.126.127.031.630.641.445.645.350.9
Middle East & Africa中東・アフリカ73.373.084.384.484.484.8161.1176.3176.2225.6240.9221.5
Americas米州20.015.813.116.219.019.021.026.523.518.120.017.4
Subtotal小計345.1346.5339.7324.0316.7309.7413.4414.1354.9401.8563.5552.0
Proportional interest in production by equity-method affi liates
持分法適用関連会社分60.476.886.583.892.198.4100.5107.295.022.522.621.4
Total合計405.4423.3426.2407.8408.8408.1513.8521.3449.9424.3586.2573.4
Annual production (MMboe)年間生産量（原油換算百万バレル） 148.0154.5156.0148.8149.2148.9188.1190.3164.2154.9161.2209.9
*ネット生産量のうち、生産分与契約に係る生産量は、正味経済的取分に相当する数値。2012年3月期より天然ガスから原油への換算方法を変更している。
* The production volume under the production sharing contracts entered into by the INPEX Group corresponds to the net economic take of the Group. Calculation of the conversion factor from gas to oil equivalent was altered from the year ended March 31, 2012.
(Thousand bbl/day千バレル／日） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
218.3239.6 251.2 245.9 244.9 242.7
339.2 348.3329.1
352.4331.1■
(MMcf/day百万 cf ／日） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
1,122.6 1,102.5
927.7863.4876.4880.0932.9922.7
649.7649.0
1,226.4 1,264.6
(Thousand boe/day原油換算千バレル／日） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
405.4 423.3 426.2 407.8 408.8 408.1
513.8 521.3
449.9424.3
586.2 573.4
Operating Data事業データ
INPEX CORPORATION Fact Book 202021
(Thousand bbl 千バレル）
(MMcf百万 cf)
(Thousand bbl千バレル）
Sales Volume*販売量データ*
Crude oil原油
Natural gas (excluding LPG)天然ガス（LPGを除く）
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本208 156 138 414 861791741900940789499621
（Thousand kl）（千kl）33 25 22 66 1371261181431491257999
Asia & Oceaniaアジア・オセアニア15,295 18,004 15,355 19,341 12,151 11,015 13,505 12,2466,5545,621 14,008 15,580
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）11,556 9,056 9,107 9,177 8,6979,946 11,666 11,336 13,266 15,115 11,272 16,918
Middle East & Africa中東・アフリカ47,293 48,396 56,084 57,201 57,420 58,773 89,486 95,495 90,412 78,048 79,147 81,022
Americas米州1,743 1,040 53 55 43331,8292,2301,7109302,0243,141
Total合計76,095 76,651 80,738 86,189 79,171 80,558 117,227 122,207 112,882 100,503 106,950 117,282
Average unit price of domestic production (¥/kl)
国内平均単価（円／ kl）41,470 49,957 60,263 64,207 67,817 61,080 38,259 35,997 42,143 51,667 45,936 31,001
Average unit price of overseas production (U.S.$/bbl)
海外平均単価（米ドル／バレル） 68.4084.34 112.97 110.11 107.7884.0047.9546.4156.3070.3065.6140.31
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本 61,459 64,253 65,602 65,429 67,106 66,679 65,304 71,295 79,243 80,930 56,242 77,413
(Million m3) （百万m3） 1,647 1,722 1,758 1,7531,7981,7871,7501,9102,1232,1691,5072,074
Asia & Oceaniaアジア・オセアニア324,364 306,641 264,617 223,451 219,771 204,231 238,759 230,183 137,371 106,703 262,903 361,864
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）̶̶̶̶̶̶̶1,9477,8089,9966,7209,086
Middle East & Africa中東・アフリカ̶̶̶̶̶̶̶̶̶̶̶̶
Americas米州30,861 30,334 27,382 29,912 40,240 38,575 33,153 39,569 40,394 35,223 19,317 19,102
Total合計416,684 401,228 357,601 318,792 327,117 309,485 337,216 342,994 264,816 232,851 345,182 467,466
Average unit price of domestic production (¥/m3)
国内平均単価（円／m3）38.41 41.73 44.56 47.0250.3157.5652.2943.3646.3653.4653.2746.93
Average unit price of overseas production (U.S.$/thousand cf)
海外平均単価（米ドル／千cf） 7.43 9.10 14.12 13.4313.0911.366.585.195.043.184.453.61
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan日本 21222922314887755432
(Thousand tons) （千トン） 20.221.821.214.10.70.70.60.50.50.40.30.2
Asia & Oceaniaアジア・オセアニア3,164 3,258 3,213 3,6592,9372,8442,3541,8551,181200409254
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国）̶̶̶̶̶̶̶̶̶̶̶̶
Middle East & Africa中東・アフリカ̶̶̶̶̶̶̶̶̶̶̶̶
Americas米州̶̶̶̶̶̶̶̶̶̶̶̶
Total合計3,377 3,487 3,436 3,8072,9442,8512,3611,8601,186204412257
Average unit price of domestic production (¥/kg)
国内平均単価（円／ kg）111 115 12011610388665775776661
Average unit price of overseas production (U.S.$/bbl)
海外平均単価（米ドル／バレル）55.74 66.45 84.6985.1282.3766.7936.9733.9345.4266.1840.0635.54
* Countries and areas are shown by segment.* 販売量データの国及び地域はセグメント別に区分されている。
• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019年12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
60,000
30,000
90,000
120,000
150,000
(Thousand bbl千バレル） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
76,095 76,651 80,738 86,189 79,171 80,558
117,227122,207
112,882
100,503106,950
117,282
200,000
100,000
300,000
400,000
500,000
(MMcf百万 cf)
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
416,684 401,228
357,601 
318,792 327,117309,485337,216 342,994
264,816
232,851
345,182
467,466
(Thousand bbl千バレル）
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
3,377 3,487 3,436 
2,944 2,851
204412257
Operating Data事業データ
株式会社INPEX ファクトブック 202022
Business Investment / Others事業投資／その他
• INPEX changed its accounting period to the January to December period from the April to March period. As such, the year ended December 31, 2019 (FY2019) is a transitional, nine-month accounting period from April 1, 2019 to December 31, 2019.
(¥ million百万円）Depreciation equivalent amount減価償却費相当額
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Depreciation and amortization減価償却費40,354 54,245 48,02651,91550,91652,52086,79191,15992,805106,899135,629174,098
Recovery of recoverable accounts under production sharing (Capital expenditures)生産物回収勘定（資本支出）の回収額45,653 50,816 53,54354,08667,07375,58564,19979,87353,46533,12732,26134,691
Amortization of goodwillのれん償却額6,759 6,760 6,7606,7606,7606,7606,7606,7606,7606,7605,0226,760
Total合計92,766 111,821 108,330112,763124,750134,866157,751177,793153,032146,787172,913215,550
(¥ million百万円）Analysis of recoverable accounts under production sharing生産物回収勘定の増減
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Balance at beginning of the period生産物回収勘定（期首）453,922 514,645 534,330 568,318590,565685,990703,291727,771659,201589,098568,059568,377
Add: Exploration costs増加：探鉱投資10,084 23,990 25,320 22,04342,08541,23630,9699,4613,8324,0323,2033,584
 Development costs開発投資146,028 120,996 123,762 130,997172,233131,984104,51839,92816,86922,61227,05428,865
 Operating expenses操業費54,938 43,819 50,054 53,91973,17998,25070,36555,51437,39615,66613,07817,188
 Otherその他2,670 2,819 4,501 5,1019,3867,3319,7456,9698,55111,7377,7816,184
Less: Cost recovery (Capital expenditures)減少：コスト回収（資本支出） 45,653 50,816 53,543 54,08667,07375,58564,19979,87353,46533,12732,26134,691
  Cost recovery (Operating expenditures)コスト回収（非資本支出） 107,074 95,665 98,869 107,937129,671146,929107,13373,41452,01926,20312,25513,965
 Otherその他270 25,459 17,237 27,7904,71638,98619,78527,15631,26715,7566,283̶
Balance at end of the period生産物回収勘定（期末） 514,645 534,330 568,318 590,565685,990703,291727,771659,201589,098568,059568,377575,544
Allowance for recoverable accounts under production sharing at end of the period生産物回収勘定引当金94,891 96,879 100,671 112,870123,483121,707131,765120,54381,62570,01766,89769,441
(¥ million百万円）Oil and gas exploration expenditures石油・天然ガス探鉱投資
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Exploration expenditures探鉱投資32,995 32,530 32,81453,98371,00172,64939,33916,1624,96513,75318,81210,777
Exploration cost equivalent amount in exploration expenditures*うち探鉱費相当額*30,332 26,563 27,08147,70837,39943,52331,52821,1091,32713,35018,54211,642
*探鉱費＋生産物回収勘定引当金繰入額＋探鉱事業引当金繰入額 「探鉱投資」と「探鉱費相当額」との差額は、生産分与契約の開発・生産中プロジェクトの探鉱投資額等。
*  Exploration expenses + Provision for allowance for recoverable accounts under production sharing + Provision for exploration projectsThe difference between “Exploration expenditures” and “Exploration cost equivalent amount in exploration expenditures” includes exploration expenditures expended in the development and production projects under production sharing contracts, and others.
600,000
200,000
400,000
800,000
1,000,000
1,200,000
(¥ million  百万円） 
2019/3 2019/12 2020/122010/3 2011/3 2012/3 2013/3 2014/3 2015/3 2016/3 2017/3 2018/3
235,721 248,004 243,531240,582178,054
807,988
969,3521,020,154 1,053,906
594,676
707,817
484,774
(¥ million百万円）
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/12 2020/12
Japan 日本7,569 4,468 1,0512,2064,4553,3708,8447,6741,0771,0942,2232,992
Asia & Oceania アジア・オセアニア127,953 115,927 143,962595,704778,965830,955723,133458,274493,698387,425115,92278,639
Eurasia (Europe & NIS)ユーラシア（欧州・NIS諸国） 68,074 93,070 61,35753,41859,82348,49658,89046,22322,55723,62518,54024,027
Middle East & Africa中東・アフリカ25,326 23,795 19,32242,03066,63176,368249,73678,412186,96462,90358,23358,069
Americas米州6,799 10,743 17,837114,62859,47660,96413,3014,0913,5189,72445,66114,325
Total合計235,721 248,004 243,531807,988969,352 1,020,154 1,053,906594,676707,817484,774240,582178,054
*権益取得費を含む。* Including acquisition costs
Oil and gas exploration and development expenditures (by segment)*石油・天然ガス探鉱・開発投資（セグメント別内訳）*
(¥ million百万円）Capital expenditures設備投資等
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Oil and gas development expenditures*1石油・天然ガス開発投資*1202,726215,473210,716754,003898,349947,504 1,014,565578,514702,850471,021221,769167,276
Acquisition costsうち権益取得費69128,445600177,33043,64618,424134,516̶100,906107,86235,8705,760
Capital expenditures for gas infrastructure and others天然ガス供給インフラ施設等の建設費等その他への設備投資等46,696 21,233 36,92122,60337,24327,97151,88410,5803,3183,7462,7072,836
Total*2合計*2249,422236,707247,637776,607935,593975,476 1,066,450589,095706,169474,768224,476170,113
*1  Oil and gas development expenditures include amounts equivalent to development costs under production sharing contracts and booked as investment account (recoverable accounts under production sharing), acquisition costs and other expenditures as well as capital expenditures booked as tangible fixed assets.*2  The total includes INPEX’s portion of investments in major affiliates accounted for by the equity method, such as Ichthys LNG Pty Ltd from the year ended March 31, 2012.
*1  有形固定資産に計上している設備投資額の他に、投資勘定(生産物回収勘定)に計上している生産分与契約の開発投資相当額及び権益取得費等を含んでいる。*2  2012年3月期から、イクシス下流事業会社（Ichthys LNG Pty Ltd）を含む主要な持分法適用関連会社での投資額のうち当社分を含んでいる。
• 2019年度より決算期を3月31日から12月31日に変更した。決算期変更の経過期間となる2019年
12月期（2019年度）は2019年4月1日から2019年12月31日までの9カ月決算。
Operating Data事業データ
INPEX CORPORATION Fact Book 202023
2017/32018/32019/32019/122020/12
GHG emissions (Scope 1) (Thousand tons-CO2) (Notes 2,3,4)直接的な温室効果ガス排出量（スコープ1）（千トン・CO2）（注 2、3、4）̶ ̶ ̶ 8,5577,328 
GHG emissions (Scope 2) (Thousand tons-CO2) (Notes 2,3,4)直接的な温室効果ガス排出量（スコープ2）（千トン・CO2）（注 2、3、4）̶ ̶̶ 204179 
Fresh water consumption (m3) (Note 4)淡水使用量（m3）（注4）1,184,022 1,202,217 1,138,121 1,116,7871,637,999 
Domestic (m3)国内（m3）1,176,697 1,194,807 1,130,872 1,111,606995,758 
Overseas (m3)海外（m3）7,325 7,410 7,249 5,182642,241 
Discharge of produced water (m3)産出水の排出量（m3）940,834 685,281 659,198 792,0261,815,410 
Domestic (m3)国内（m3）922,209 682,593 553,993 469,501487,508 
Overseas (m3)海外（m3）18,625 2,688 105,205 322,5251,327,902 
Waste (Tons) (Note 5)廃棄物量（トン）（注5）7,840 3,638 2,575 2,96010,377 
Domestic (Tons)国内（トン）7,782 3,560 2,494 2,8972,610 
Overseas (Tons)海外（トン）58 78 81 637,768 
Environment (Consolidated) (Note 1)環境（連結）（注1）
Discharge of produced water 産出水の排出量Waste廃棄物量Fresh water consumption 淡水使用量
2020/122019/32019/122017/32018/3
1,130,872
1,194,807
1,176,697
Overseas海外
Domestic国内
950,000
1,100,000
1,250,000
1,400,000
1,550,000
1,700,000
1,138,121
1,111,606
1,116,787
642,241
995,758
1,637,999
1,202,2171,184,022
2020/122019/32019/122017/32018/3
Overseas海外
Domestic国内
105,205
553,993
682,593
18,625
922,209
400,000
800,000
1,200,000
1,600,000
2,000,000
1,327,902
487,508
1,815,410
322,525
469,501
792,026
659,198 685,281 
940,834 
（Tons トン） 
2020/122019/32019/122017/32018/3
Overseas海外
Domestic国内
12,000
10,000
10,377
2,575 
3,638 
7,840 
ESG DataESGデータ
Please refer to our Sustainability Report 2021 for more ESG data.他のESGデータは「サステナビリティレポート2021」に掲載。
Notes: 1.  This includes environment data of Headquarters, Technical Research Center, overseas offices and domestic and overseas operational organizations. Data for the year ended December 31, 2019 covers January 1 to December 31, 2019. 2.  Scope1: Direct emissions from resources owned or controlled by the reporting company, Scope2: Indirect emissions from the consumption of electricity, steam, heat and cooling purchased by the reporting company. 3.  The emissions are calculated in accordance with local laws and regulations and rules for HSE-related data. 4.  Equity share basis; The total amount of emissions corresponds to the net economic share of each production project. It is started to be calculated and disclosed from 2019. 5.  Wastes are defined as hazardous wastes in accordance with the laws of each country. Within Japan, “specially controlled industrial wastes“ as stipulated in the Act on Waste Disposal and Public Cleansing are set as “hazardous wastes“ and other wastes (including “industrial wastes“ and “municipal waste“) are set as “non-hazardous wastes.“
注： 1.  環境データは本社、技術研究所、海外事務所、国内及び海外のオペレーション事業体を対
象範囲とする。2019年12月期のデータの集計期間は2019年1月-12月。
 2.  スコープ1：当社が所有又は管理する発生源からの直接排出量、スコープ2：当社が購入し
消費する電力、蒸気、熱及び冷却からの間接排出量。
 3. 各国の法令、及びHSEの関連データ要領に従って算出。
 4.  エクイティシェアベース：各生産プロジェクトの正味経済的取分に相当する排出量の合
計。2019年度データより新たに開示。
 5.  廃棄物は各国の法令に従い有害廃棄物を定義し、国内については、廃掃法（廃棄物の処理
及び清掃に関する法律）で規定されている「特別管理産業廃棄物」は「有害廃棄物」、それ
以外（「産業廃棄物」、「一般廃棄物」を含む）を「非有害廃棄物」とする。
株式会社INPEX ファクトブック 202024
2017/32018/32019/32019/122020/12
Health & Safety【労働安全】
Lost Time Injury Frequency (LTIF) (Note 6)災害発生頻度（LTIF）（注6）0.110.280.230.320.26 
Human Resources (Unconsolidated)【人材】（単体）
Number of employees (Note 7)従業員数（人）（注7）1,323 1,231 1,194 1,2091,364 
Male (People)男性（人）1,097 1,016 975 9811,079 
Female (People)女性（人）226 215 219 228285 
Average length of service (Years)平均勤続年数（年）15.7 15.9 15.8 15.514.1 
Society【社会】
Social investment (¥ million) (Note 8)社会貢献投資額（百万円）（注8）1,345 1,408 1,615 2,239 2,196 
Corporate Governance【コーポレートガバナンス】
Number of Directors (Note 9)取締役人数（人）（注9）14 15 15 1314 
Directors (Inside) (People)社内取締役人数（人）9 9 9 88 
Directors (Outside) (People)社外取締役人数（人）5 6 6 56 
Ratio of Directors (Outside) (%)社外取締役の全取締役に占める割合（％）35.7%40.0%40.0%38.5%42.9%
Number of Audit & Supervisory Board Members監査役人数（人）5 5 4 55 
Audit & Supervisory Board Members (Inside) (People)社内監査役人数（人）11111 
Audit & Supervisory Board Members (Outside) (People)社外監査役人数（人）4 4 3 44 
Ratio of Audit & Supervisory Board Members (Outside) (%)社外監査役の全監査役に占める割合（％）80.0%80.0%75.0%80.0%80.0%
Lost Time Injury Frequency (LTIF)災害発生頻度
Social investment 社会貢献投資額
Number of employees従業員数
Number and ratio of Directors (Outside)社内取締役人数と社外取締役の全取締役に占める割合
Average length of service 平均勤続年数
Number and ratio of Audit & Supervisory Board Members (Outside)社外監査役人数と社外監査役の全監査役に占める割合
2020/122019/32019/122017/32018/3
2020/122019/32019/122017/32018/3
（¥ million  百万円） 
2,2392,196
1,408 1,345 
2020/122019/32019/122017/32018/3
Directors (Outside)社外取締役
Directors (Inside)社内取締役
Ratio of Directors (Outside)社外取締役の全取締役に占める割合
（People  人） （%） 
1440.0%40.0%
2020/122019/32019/122017/32018/3
Audit & Supervisory Board Members (Outside)社外監査役
Audit & Supervisory Board Members (Inside)社内監査役
Ratio of Audit & Supervisory Board Members (Outside)社外監査役の全監査役に占める割合
（People  人） （%） 
80.0%80.0%80.0%
2020/122019/32019/122017/32018/3
Female女性
Male男性
（People  人） 
9811,0161,097
2282152261,209 
1,194 1,231 1,323 
2020/122019/32019/122017/32018/3
（Years  年） 
15.815.5
15.915.7
Health & Safety / Human Resources / Society / Corporate Governance労働安全・人材・社会・コーポレートガバナンス
注： 6. 百 万 労 働 時 間 当 た り の 死 亡 災 害 と 休 業 災 害 の 発 生 頻 度（LTIF：Lost Time Injury 
Frequency）。 2019年12月期のデータの集計期間は2019年1月-12月。
 7. 日本、ジャカルタ事務所、ヒューストン事務所、ロンドン事務所が含まれるが、集計方法
の見直しにより2018年3月期のデータからジャカルタ事務所を除き、2019年3月期のデー
タからヒューストン事務所を除く。
 8. 2019年12月期のデータの集計期間は2019年1月-12月。
 9. 各年度6月の株主総会で決議した人数。
Notes: 6.  The rate of injuries resulting in fatalities or lost time per million hours worked (LTIF: Lost Time Injury Frequency). Data for the year ended December 31, 2019 covers January 1 to December 31, 2019. 7.  Data of the Japan, Jakarta, Houston and London offices is included, but due to the revision of the calculation method, the Jakarta office is excluded from the year ended March 31, 2018 and the Houston office is excluded from the year ended March 31, 2019. 8.  Data for the year ended December 31, 2019 covers January 1 to December 31, 2019. 9.  The number of persons who are elected by resolutions at the Ordinary General Meeting of Shareholders held every June.
ESG DataESGデータ
INPEX CORPORATION Fact Book 202025
（¥ million百万円）
Financial Data財務データ
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Assets資産の部
ⅠCurrent assetsⅠ流動資産
1. Cash and deposits1. 現金及び預金119,809 112,395 275,903 483,814650,187922,683772,528652,614276,102239,675173,798 182,978
2. Accounts receivable̶trade2. 受取手形及び売掛金88,364 95,391 119,459 117,411110,39577,20956,46272,36466,90092,217148,765 83,810
3. Marketable securities3. 有価証券213,040 207,165 399,382 281,642201,000162,289̶5,503̶̶̶̶
4. Inventories4. たな卸資産12,322 12,137 11,977 15,40925,48531,65235,91530,72032,32140,10038,987 34,299
5. Deferred tax assets5. 繰延税金資産5,355 9,450 18,692 10,1117,7454,9552,8527,264̶̶̶̶
6. Accounts receivable̶other6. 未収入金43,160 57,032 71,911 94,333121,120110,31484,65083,29171,01468,33147,057 40,748
7.  Recoverable accounts under production sharing7. 生産物回収勘定̶̶̶̶̶̶̶47,263̶̶̶̶
8. Other8. その他10,824 12,500 24,388 118,70141,91246,21145,01268,40340,99730,64424,962 57,481
Less allowance for doubtful accounts貸倒引当金(22) (13,141) (13,013) (14,919)(17,643)(12,905)(13,076)(20,763)(20,984)(13,257)(13,768)(12,225)
 Less allowance for recoverable accounts under production sharing生産物回収勘定引当金̶̶̶̶̶̶̶(3,701)̶̶̶̶
Total current assets流動資産合計492,854 492,932 908,702 1,106,5041,140,2041,342,409984,345942,960466,350457,711419,802 387,093
ⅡFixed assetsⅡ固定資産
1. Tangible fi xed assets1. 有形固定資産
(1) Buildings and structures(1) 建物及び構築物127,599 118,054 107,300 102,965145,936138,010124,900214,575201,045187,191177,320 168,002
(2) Wells(2) 坑井18,193 28,604 26,827 19,77725,34836,39151,25744,98038,323259,310261,931 265,337
(3) Machinery, equipment and vehicles(3) 機械装置及び運搬具45,728 58,227 54,462 71,477112,898109,686130,796120,71399,4721,304,3561,254,865 1,207,911
(4) Land(4) 土地20,789 20,707 20,070 19,56019,73619,86919,67319,18919,09818,93018,596 18,591
(5) Construction in progress(5) 建設仮勘定91,447 75,077 167,779 359,429626,5201,173,4091,407,4901,511,6601,678,743506,399552,866 385,405
(6) Other(6) その他54,335 79,189 7,257 11,33021,33920,25418,49517,4787,9362,8059,790 24,533
Total tangible fi xed assets有形固定資産合計358,094 379,861 383,697 584,541951,7791,497,6211,752,6141,928,5972,044,6192,278,9942,275,372 2,069,783
2. Intangible assets 2. 無形固定資産
(1) Goodwill(1) のれん108,122 101,362 94,601 87,84081,08074,31967,55860,79854,03747,27642,206 35,445
(2) Exploration and development rights(2) 探鉱開発権107,856 125,228 118,007 118,869125,621134,809146,262154,556153,168152,977155,108 156,787
(3) Mining rights(3) 鉱業権18,154 17,554 16,492 167,178221,411238,316318,438298,370328,086314,759333,246 245,016
(4) Other(4) その他5,070 4,966 4,216 6,26611,06511,3249,2127,5286,2105,2004,770 4,587
Total intangible assets無形固定資産合計239,205 249,110 233,317 380,155439,178458,769541,471521,253541,502520,213535,330 441,837
3. Investments and other assets 3. 投資その他の資産
(1) Investment securities(1) 投資有価証券403,978 975,541 886,222 673,129476,407284,090213,730246,085367,417419,064378,527 297,867
(2) Long-term loans receivable(2) 長期貸付金18,641 13,979 48,109 7,26333,091126,5164,230134,235295,861592,786718,976 911,424
(3) Long-term time deposits(3) 長期預金̶̶̶287,273364,103120,270202,842̶̶̶̶̶
(4)  Recoverable accounts under production sharing(4) 生産物回収勘定514,645 534,330 568,318 590,565685,990703,291727,771611,937589,098568,059568,377 575,544
(5) Deferred tax assets(5) 繰延税金資産24,563 27,213 30,554 40,07613,82122,84813,10525,75020,31613,7467,471 10,237
(6) Other(6) その他72,576 118,340 115,141 65,43361,15976,16871,35729,24811,35917,25816,247 13,231
  Less allowance for doubtful accounts  貸倒引当金(640)(270)(715) (793)(885)(8,398)(7,814)(8,282)(849)(789)(818)(600)
   Less allowance for recoverable accounts under production sharing  生産物回収勘定引当金(94,891)(96,879)(100,671) (112,870)(123,483)(121,707)(131,765)(116,842)(81,625)(70,017)(66,897)(69,441)
   Less allowance for investments in exploration  探鉱投資引当金(15,248)(13,780)(6,280) (5,119)(3,226)(2,727)(2,046)(2,769)(1,664)(3,482)(2,395)(2,460)
Total investments and other assets投資その他の資産合計923,624 1,558,474 1,540,679 1,544,9571,506,9771,200,3521,091,410919,3621,199,9131,536,6251,619,489 1,735,804
Total fi xed assets固定資産合計1,520,923 2,187,447 2,157,695 2,509,6542,897,9353,156,7433,385,4963,369,2133,786,0354,335,8344,430,192 4,247,424
Total assets資産合計2,013,778 2,680,379 3,066,397 3,616,1584,038,1394,499,1534,369,8414,312,1744,252,3864,793,5454,849,995 4,634,518Liabilities負債の部
ⅠCurrent liabilitiesⅠ流動負債
1. Accounts payable̶trade1. 支払手形及び買掛金16,601 23,441 30,228 41,40146,81153,47447,35151,10545,67532,20521,798 15,090
2. Short-term loans2. 短期借入金4,872 4,441 4,801 8,56021,95433,20668,46844,25271,250127,184166,831 175,133
3. Income taxes payable3. 未払法人税等86,534 113,101 139,144 152,68191,19860,18542,84545,21917,23419,28143,190 12,676
4. Accounts payable̶other4. 未払金81,211 83,309 133,153 133,232131,904113,56779,62173,72194,360113,17997,241 70,478
5. Accrued bonuses5. 賞与引当金̶̶̶̶̶̶̶̶̶̶1,334 1,415
6. Accrued bonuses to offi cers6. 役員賞与引当金132 127 128 1271107055626296108 54
7. Provision for loss on business7. 事業損失引当金̶̶̶̶̶̶̶2,9209,8879,9718,635 9,351
8. Provision for exploration projects8. 探鉱事業引当金15,324 9,537 5,551 26,8569,8169,4924,7814,4784,0057,30311,808 9,496
9. Asset retirement obligations9. 資産除去債務̶3,686 3,337 3,8122,3531,0932,2334,3014073,309780 1,475
 10. Other 10. その他23,228 17,083 51,498 48,30371,52194,12273,76971,40362,55559,46949,754 44,116
Total current liabilities流動負債合計227,905 254,728 367,843 414,976375,670365,212319,127297,465305,439372,000401,483 339,288
ⅡLong-term liabilitiesⅡ固定負債
1. Long-term debt1. 長期借入金235,510 268,706 313,972 466,908561,674643,951673,098643,432627,3261,014,013950,948 1,059,713
2. Deferred tax liabilities2. 繰延税金負債27,139 36,517 43,178 34,98754,95977,91756,04445,61536,19525,12944,305 32,594
3. Accrued retirement benefi ts to employees3. 退職給付引当金7,585 6,979 6,340 8,580̶̶̶̶̶̶̶̶
4. Provision for loss on business 4. 事業損失引当金̶̶̶3,7056,9779,0804,737̶̶̶̶̶
5.  Liabilities for site restoration and decommissioning costs5. 廃鉱費用引当金14,257 ̶̶̶̶̶̶̶̶̶̶̶
6.  Liabilities for losses on development activities 6. 開発事業損失引当金1,964 ̶̶̶̶̶̶̶̶̶̶̶
7.  Provision for stocks payment7. 株式給付引当金̶ ̶̶̶̶̶̶̶̶2142 71
8. Accrued special repair and maintenance8. 特別修繕引当金442 443 367 277234227293331380479537 577
9. Liability for retirement benefi ts9. 退職給付に係る負債̶̶̶̶7,7936,7007,4615,9525,9376,2658,011 8,158
 10. Asset retirement obligations 10. 資産除去債務̶8,965 9,804 13,58125,954105,234100,829104,845111,128110,107136,101 172,147
 11. Other 11. その他8,369 6,655 10,697 2,1568,8382,12629,4456,9897,1107,94311,388 20,627
Total long-term liabilities固定負債合計295,269 328,268 384,361 530,198666,432845,238871,911807,166788,0781,163,9611,151,334 1,293,890
Total liabilities負債合計523,175 582,997 752,204 945,1741,042,1021,210,4501,191,0381,104,6311,093,5171,535,9611,552,818 1,633,178Net assets純資産の部
ⅠShareholders’ equityⅠ株主資本
1. Common stock1. 資本金30,000 290,809 290,809 290,809290,809290,809290,809290,809290,809290,809290,809 290,809
2. Capital surplus2. 資本剰余金418,477 679,287 679,287 679,287679,287679,287676,273676,273673,574673,574674,374 674,374
3. Retained earnings3. 利益剰余金936,744 1,047,431 1,219,526 1,375,1061,532,8761,584,6451,575,1361,595,0181,609,0941,678,9141,763,034 1,607,524
4. Treasury stock4. 自己株式(5,248)(5,248)(5,248) (5,248)(5,248)(5,248)(5,248)(5,248)(5,248)(5,434)(5,432)(5,428)
Total shareholders’ equity株主資本合計1,379,974 2,012,280 2,184,375 2,339,9562,497,7252,549,4942,536,9712,556,8522,568,2302,637,8632,722,786 2,567,279
ⅡAccumulated other comprehensive incomeⅡその他の包括利益累計額
1. Unrealized holding gain (loss) on securities1. その他有価証券評価差額金12,351 1,455 6,952 34,74144,73746,0494,9586,47910,2172,8315,570 2,091
2.  Unrealized gain (loss) from hedging instruments2. 繰延ヘッジ損益̶̶4,118 16,243(17,578)(36,423)(6,660)71725,7246,359(18,128)(54,054)
3. Translation adjustments3. 為替換算調整勘定(4,826)(16,847)(16,195) 90,350266,224507,560397,622379,119312,507359,425330,546 221,224
 Total accumulated other comprehensive incomeその他の包括利益累計額合計7,525 (15,391) (5,124) 141,336293,382517,185395,921386,316348,449368,616317,988 169,261
ⅢNon-controlling interestsⅢ非支配株主持分103,103 100,493 134,941 189,691204,928222,023245,910264,372242,188251,103256,400 264,798
Total net assets純資産合計1,490,603 2,097,382 2,314,193 2,670,9832,996,0363,288,7033,178,8033,207,5423,158,8683,257,5843,297,176 3,001,339
Total liabilities and net assets負債純資産合計2,013,778 2,680,379 3,066,397 3,616,1584,038,1394,499,1534,369,8414,312,1744,252,3864,793,5454,849,995 4,634,518
Consolidated Balance Sheet 連結貸借対照表
株式会社INPEX ファクトブック 202026
（¥ million百万円）
（¥ million百万円）
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Ⅰ Net salesⅠ 売上高840,427 943,080 1,186,731 1,216,5331,334,6251,171,2261,009,564874,423933,701971,388 1,000,005 771,046
Ⅱ Cost of salesⅡ 売上原価298,167 334,833 395,442 426,326490,416525,443526,757453,846498,039413,300 424,702 439,852
Gross profi t売上総利益542,259 608,247 791,288 790,206844,209645,782482,806420,576435,662558,088 575,303 331,194
Ⅲ Exploration expensesⅢ 探鉱費15,710 12,000 11,747 20,12428,20523,2386,1666,7341,32711,679 15,426 9,074
Ⅳ Selling, general and administrative expensesⅣ 販売費及び一般管理費64,880 66,504 70,184 76,63482,39287,65786,50077,38976,97172,127 61,234 73,648
Operating income営業利益461,667 529,742 709,357 693,447733,610534,886390,139336,452357,363474,281 498,641 248,471
Ⅴ Other incomeⅤ 営業外収益
 1. Interest income 1. 受取利息4,353 4,110 4,399 8,73417,46211,22610,75110,4606,4777,644 2,422 33,480
 2. Dividend income 2. 受取配当金9,476 5,721 6,993 7,8329,2276,66910,8252,8024,7786,760 3,240 6,733
 3. Gain on sales of marketable securities 3. 有価証券売却益̶̶̶ ̶10,33518,14625,986̶̶̶̶̶
 4. Gain on sales of investment securities 4. 投資有価証券売却益̶̶̶ 25,449̶̶̶4,999̶̶4,981 ̶
 5. Equity in earnings of affi liates 5. 持分法による投資利益̶4,933 6,638 ̶̶̶̶2,1754,19228,363 23,313 ̶
 6. Gain on change in equity 6. 持分変動利益̶3,644 ̶̶̶̶̶̶̶̶̶̶
 7.  Reversal of allowance for doubtful accounts 7. 貸倒引当金戻入額̶̶ ̶̶̶̶̶̶̶8,357 ̶̶
 8. Gain on transfer of participating interests 8. 権益譲渡益̶7,333 70,260 50,173̶27,520̶̶̶̶̶̶
 9. Guarantee commission received 9. 受取保証料̶̶̶̶̶̶̶̶̶̶2356,650
10. Foreign exchange gain10. 為替差益̶̶̶̶̶19,5622,964̶̶1,941 2,481 ̶
11.  Gain on reversal of allowance for recoverable accounts under production sharing11. 生産物回収勘定引当金戻入益̶̶̶̶̶̶̶̶17,528̶̶̶
12. Compensation income12. 受取補償金̶̶̶̶̶̶̶̶12,6257,498 ̶̶
13. Other13. その他7,643 5,432 13,790 6,47713,70918,63919,40618,6529,66410,358 8,094 16,938
Total other income営業外収益合計21,473 31,176 102,082 98,66650,734101,76369,93439,09055,26670,924 44,768 63,803
Ⅵ Other expensesⅥ 営業外費用
 1. Interest expense 1. 支払利息1,274 1,073 1,227 1,5182,3352,9464,1985,2287,07517,333 21,856 19,092 
 2. Equity in losses of affi liates 2. 持分法による投資損失1,919 ̶̶1,0415,05313,44320,696̶̶̶̶12,999 
 3.  Provision of allowance for doubtful accounts 3. 貸倒引当金繰入額̶9,132 ̶̶̶̶̶8,308̶̶̶̶
 4.  Provision for allowance for recoverable accounts under production sharing 4.  生産物回収勘定引当金繰入額6,028 11,481 14,816 15,1318,02819,44925,02614,374̶1,468 3,115 2,566 
 5. Provision for exploration projects 5. 探鉱事業引当金繰入額8,594 3,082 518 12,4521,165835335̶̶203 ̶2 
 6. Provision for investments in exploration 6. 探鉱投資引当金繰入額5,408 ̶̶̶̶̶̶̶̶̶̶̶
 7. Loss on valuation of investment securities 7. 投資有価証券評価損̶̶̶̶̶̶̶̶̶̶3,497 6,556 
 8.  Loss on adjustment for changes of accounting standard for asset retirement obligations
 8.  資産除去債務会計基準の適用に伴う影響額̶1,555 ̶̶̶̶̶̶̶̶̶̶
 9. Provision for loss on business 9. 事業損失引当金繰入額̶̶̶̶̶̶̶̶3,264̶̶̶
10. Foreign exchange loss10. 為替差損13,263 11,539 14,640 30,0554,279̶̶3,75910,472̶̶8,209 
11. Loss on disposal of fi xed assets11. 固定資産除却損̶̶̶ ̶̶6,25813,2884,786̶̶̶̶
12. Loss on business withdrawal12. 事業撤退損̶̶5,370 ̶̶̶̶̶̶̶̶̶
13. Other13. その他4,624 14,466 7,827 13,76913,40418,56121,7565,1934,5476,923 3,851 5,514 
Total other expenses営業外費用合計41,113 52,331 44,400 73,96834,26661,49485,30141,65125,36025,927 32,321 54,939 
Ordinary income経常利益442,027 508,587 767,038 718,146750,077575,155374,771333,891387,269519,278 511,088 257,335 
Ⅶ Extraordinary lossⅦ 特別損失
Impairment loss減損損失̶̶̶̶̶35,13245,8846,36679,97025,236 796 189,940 
 Income before income taxes税金等調整前当期純利益442,027 508,587 767,038 718,146750,077540,022328,887327,525307,299494,042 510,292 67,394 
Income taxes̶current法人税、住民税及び事業税322,993 367,082 543,156 539,207514,015448,658356,585304,620308,351399,919 361,180 184,127 
Income taxes̶deferred法人税等調整額2,132 1,614 (6,223) (9,932)49,12115,767(2,192)(33,227)1,048(2,660)24,545 (12,926)
Net income (loss)当期純利益（損失）̶139,890 230,105 188,870186,94175,597(25,505)56,131(2,100)96,783 124,566 (103,806)
 Net income (loss) attributable to non-controlling interests 非支配株主に帰属する当期純利益（損失）9,691 11,190 36,104 5,9093,250(2,222)(42,282)9,963(42,462)6771,015 7,893 
 Net income (loss) attributable to owners of parent 親会社株主に帰属する当期純利益（損失）107,210 128,699 194,000 182,961 183,69077,82016,77746,16840,36296,106 123,550 (111,699)
2011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Net income (loss)当期純利益（損失）139,890 230,105 188,870186,94175,597(25,505)56,131(2,100)96,783 124,566 (103,806)
Other comprehensive incomeその他の包括利益
Unrealized holding gain (loss) on securitiesその他有価証券評価差額金(10,950) 5,498 27,7879,9811,315(41,094)1,5223,711(7,387)2,685 (3,483)
Unrealized gain (loss) from hedging instruments繰延ヘッジ損益̶4,118 16,769(20,887)̶̶̶̶̶(192)281 
Translation adjustments為替換算調整勘定(11,516)2,082 105,692176,311244,018(129,078)(19,867)(68,317)46,094 (29,557)(109,917)
 Share of other comprehensive income of affi liates accounted for by the equity method持分法適用会社に対する持分相当額(2,716) (1,134) (1,577)(6,674)(13,951)29,3106,11924,439(19,429)(24,608)(39,904)
Total other comprehensive incomeその他の包括利益合計(25,183) 10,564 148,671158,731231,382(140,862)(12,225)(40,166)19,277 (51,674)(153,024)
Comprehensive income包括利益114,706 240,669 337,542345,672306,979(166,368)43,905(42,266)116,061 72,892 (256,830)
Total comprehensive income attributable to:（内訳）
Owners of parent親会社株主に係る包括利益105,782 204,267 329,422335,737301,622(104,487)36,5642,495116,273 72,922 (260,426)
Non-controlling interests非支配株主に係る包括利益8,923 36,401 8,1199,9345,356(61,881)7,341(44,762)(211)(30)3,596 
Consolidated Statement of Income and Consolidated Statement of Comprehensive Income連結損益計算書及び連結包括利益計算書
Consolidated Statement of Income連結損益計算書
Consolidated Statement of Comprehensive Income連結包括利益計算書
Financial Data財務データ
INPEX CORPORATION Fact Book 202027
（¥ million百万円）
Financial Data財務データ
2010/32011/32012/32013/32014/32015/32016/32017/32018/32019/32019/122020/12
Ⅰ Cash fl ows from operating activitiesⅠ 営業活動によるキャッシュ・フローIncome before income taxes税金等調整前当期純利益442,027508,587767,038718,146750,077540,022328,887327,525307,299494,042 510,292 67,394 Depreciation and amortization減価償却費40,35454,24548,02651,91550,91652,52086,79191,15992,805106,899 135,629 174,098 Impairment loss減損損失̶̶̶̶̶35,13245,8846,36679,97025,236 796 189,940 Amortization of goodwillのれん償却額6,7596,7606,7606,7606,7606,7606,7606,7606,7606,760 5,022 6,760  Loss on adjustment for changes of accounting standard for asset retirement obligations
 資産除去債務会計基準の適用に伴う影響額̶1,555̶̶̶̶̶̶̶̶̶̶
 Provision for allowance for doubtful accounts貸倒引当金の増加額（減少額）̶12,924̶̶̶̶̶̶̶̶̶̶
 Provision for allowance for recoverable accounts under production sharing 生産物回収勘定引当金の増加額（減少額）7,43015,32018,99016,35314,88220,30729,84315,934(21,190)1,241 3,163 2,544 
Provision for exploration projects探鉱事業引当金の増加額（減少額）7,360(5,442)(3,915)21,132(17,318)(600)(4,399)(240)(458)3,660 4,573 (1,907) Provision for accrued retirement benefi ts to employees退職給付引当金の増加額（減少額）(902)(592)(637)2,285̶̶̶̶̶̶̶̶
 Provision for site restoration and decommissioning costs廃鉱費用引当金の増加額（減少額）59̶̶̶̶̶̶̶̶̶̶̶
Other provisionsその他の引当金の増加額（減少額）4,484(1,461)(25)5,5465,0243,419(4,352)7,1446,810(5,781)(446)(777)Liability for retirement benefi ts退職給付に係る負債の増加額（減少額）̶̶̶̶(776)(873)945(1,483)19383 1,780 186 Interest and dividend income受取利息及び受取配当金(13,829)(9,832)(11,393)(16,567)(26,691)(17,895)(21,579)(13,262)(11,255)(14,405)(5,662)(40,214)Interest expense支払利息1,2741,0731,2271,5182,3352,9463,4645,2287,07517,333 21,856 19,092 Foreign exchange loss (gain)為替差損（益）2,379(3,014)5,33416,32914,1053,97315,0854,89611,048(1,047)(747)4,809 Equity in losses (earnings) of affi liates持分法による投資損失（利益）1,919(4,933)(6,638)1,0415,05313,44320,696(2,175)(4,192)(28,363)(23,313)12,999 Gain on transfer of participating interests権益譲渡益̶(7,333)(70,260)(50,173)̶(27,520)̶̶̶̶̶̶Gain on sales of marketable securities有価証券売却損（益）̶̶̶̶̶(18,146)(25,986)̶̶̶̶̶Loss (gain) on sales of investment securities 投資有価証券売却損（益）̶̶̶(25,449)̶̶̶(4,999)̶̶(4,981)̶ Loss (gain) on valuation of investment securities投資有価証券評価損（益）̶̶̶̶̶̶̶̶̶̶3,497 6,556 
 Recovery of recoverable accounts under production sharing (Capital expenditures)生産物回収勘定（資本支出）の回収額45,65350,81653,54354,08667,07375,58564,19979,87353,46533,127 32,261 34,691 
 Recoverable accounts under production sharing (Operating expenditures) 生産物回収勘定（非資本支出）の減少額（増加額）(14,996)(17,368)(21,041)(21,079)(60,491)(60,763)(45,833)(2,823)9,6324,639 (5,471)(7,101)
Accounts receivable̶trade売上債権の減少額（増加額）(14,638)(11,375)(23,816)2,7956,27625,20115,193(16,350)2,846(25,372)(57,433)61,756 Inventoriesたな卸資産の減少額（増加額）5,844(222)194(3,231)(10,013)(797)(2,551)5,592(2,097)(11,359)(760)6,507 Accounts payable̶trade仕入債務の増加額（減少額） 4,7187,2776,56111,0295,4136,309(4,389)4,29920,604(13,427)(10,393)(6,612)Accounts receivable̶other未収入金の減少額（増加額）(9,670)7,693(19,773)4,909(35,287)(1,440)41,63211,569(287)(11,666)22,796 9,972 Accounts payable̶other未払金の増加額（減少額）13,6699,69840,942(900)(18,142)(11,246)(13,746)4,18112,22114,408 (14,946)(21,458)Advances received前受金の増加額（減少額）(1,120)(2,489)23,890(24,636)2,168(125)2,8822804,8484,443 (14,269)(148)Otherその他3,357(594)3693,091(5,247)23,5809,62523,31112,46717,017 16,153 1,852 Subtotal小計532,135611,289815,381774,906756,118669,795549,053552,790588,395617,768 619,398 520,941 Interest and dividends received利息及び配当金の受取額16,16913,07916,99619,65226,93228,19431,44618,77324,45921,120 10,361 9,568 Interest paid利息の支払額(1,734)(747)(943)(1,344)(2,381)(2,376)(3,205)(2,911)(5,077)(12,242)(17,601)(19,494)Income taxes paid法人税等の支払額(305,198)(349,526)(510,742)(540,868)(567,156)(478,863)(393,586)(292,840)(329,238)(388,080)(337,428)(218,099) Net cash provided by (used in) operating activities営業活動によるキャッシュ・フロー241,372274,093320,691252,346213,513216,749183,707275,810278,539238,566 274,730 292,915 
Ⅱ Cash fl ows from investing activitiesⅡ 投資活動によるキャッシュ・フローPayments for time deposits定期預金の預入による支出(9,925)(493)(88,771)(299,460)(211,332)(326,025)(544,330)(355,238)(259,990)(249,615)(23)(64,283)Proceeds from time deposits定期預金の払戻による収入8,4303,8496,064134,161276,248698,139790,267921,781593,900249,616 22 53,408 Payments for long-term time deposits長期預金の預入による支出̶(53,500)̶(252,082)(484,080)(112,181)(439,989)̶̶̶̶̶Proceeds from long-term time deposits長期預金の払戻による収入̶̶̶5,000130,757̶̶̶̶̶̶̶ Payments for purchases of tangible fi xed assets有形固定資産の取得による支出(87,549)(84,235)(68,317)(189,153)(323,650)(448,381)(476,788)(278,359)(271,324)(210,732)(109,737)(129,745)
Proceeds from sales of tangible fi xed assets有形固定資産の売却による収入861,0723141166772451,1314,610236209 249 404 Payments for purchases of intangible assets 無形固定資産の取得による支出(991)(2,535)(1,367)(4,256)(6,170)(15,445)(26,897)(21,953)(1,364)(809)(1,221)(3,380) Payments for purchases of marketable securities有価証券の取得による支出̶(11,731)(4,090)(17,709)̶̶̶̶̶̶̶̶
 Proceeds from sales and redemptions of marketable securities 有価証券の売却及び償還による収入101,320112,000136,614366,633285,451214,527175,584̶̶̶̶̶
 Payments for purchases of investment securities投資有価証券の取得による支出(156,264)(724,634)(238,567)(90,830)(24,637)(26,767)(6,876)(80,224)(127,785)(104,766)(1,032)(429)
 Proceeds from sales and redemptions of investment securities 投資有価証券の売却及び償還による収入̶10,84620,67270,90262,43368,93727,70010,600̶̶3,136 1,318 
 Investment in recoverable accounts under production sharing (Capital expenditures) 生産物回収勘定（資本支出）の支出(91,650)(77,864)(82,915)(82,695)(104,073)(70,430)(60,442)(37,325)(24,135)(31,631)(36,679)(35,039)
 Decrease (increase) in short-term loans receivable短期貸付金の減少額（増加額）771,5693,758(85)(4,187)(3,824)(4,120)(1,322)50813 412 543 
Long-term loans made長期貸付けによる支出(7,521)(1,134)(38,094)(141,222)(37,158)(111,387)(215,709)(133,478)(172,533)(262,671)(113,751)(84,829)Collection of long-term loans receivable長期貸付金の回収による収入345663,600119,23875,464259384,759275273264 5,299 40,108  Payments for purchases of long-term loans receivable債権譲受による支出̶̶̶̶̶̶̶̶̶̶̶(201,769)
 Payments for acquisitions of participating interests権益取得による支出̶(28,044)̶(176,231)(42,733)(18,424)(134,516)̶(100,906)(107,862)(35,870)(5,760)
 Proceeds from transfer of participating interests権益譲渡による収入̶7,33371,48656,799̶59,405̶̶̶̶̶̶
Otherその他(7,860)2,424(1,252)11,00511,43810,266(13,305)24,11811,67135,179 457 12,266  Net cash provided by (used in) investing activities投資活動によるキャッシュ・フロー(251,812)(844,511)(280,864)(489,870)(395,555)(81,086)(543,534)53,483(351,908)(682,005)(288,740)(417,189)
Ⅲ Cash fl ows from fi nancing activitiesⅢ 財務活動によるキャッシュ・フローProceeds from issuance of common stock株式の発行による収入̶521,619̶̶̶̶̶̶̶̶̶̶Increase (decrease) in short-term loans短期借入金の純増加額（減少額）(20,121)̶(40)9912,6901,48992(96)3921,840 ̶92,107 Proceeds from long-term debt長期借入れによる収入108,06256,28550,913121,57174,74227,712127,12011,76077,612497,777 79,037 238,564 Repayment of long-term debt長期借入金の返済による支出(5,283)(4,712)(4,316)(4,681)(7,759)(18,683)(26,868)(62,903)(39,250)(76,185)(89,842)(158,903) Proceeds from non-controlling interests for additional shares 非支配株主からの払込みによる収入4,7046,4189,72355,85210,28916,73087,27916,10927,57014,118 10,173 8,900 
Cash dividends paid配当金の支払額(15,306)(18,010)(21,922)(27,385)(25,934)(26,287)(26,297)(26,286)(26,291)(26,290)(39,432)(43,796) Cash dividends paid to non-controlling interests非支配株主への配当金の支払額(2,972)(13,450)(4,991)(4,991)(4,991)(4,991)(4,524)(3,939)(2,523)(5,832)(6,725)(4,098)
Otherその他(145)(92)(71)(4,286)(74)(147)(74)(72)(2,766)(242)(1,827)(6,026) Net cash provided by (used in) fi nancing activities財務活動によるキャッシュ・フロー68,937548,05729,294137,06948,961(4,177)156,726(65,428)34,742405,184 (48,615)126,747 
Ⅳ  Effect of exchange rate changes on cash and cash equivalentsⅣ 現金及び現金同等物に係る換算差額(4,947)(12,015)(2,663)51,49850,75211,962(4,064)(887)(2,083)1,827 (3,253)(3,842)
Ⅴ  Net increase (decrease) in cash and cash equivalentsⅤ  現金及び現金同等物の増加額（減少額）53,550(34,374)66,458(48,956)(82,327)143,447(207,164)262,977(40,711)(36,427)(65,878)(1,368)
Ⅵ  Cash and cash equivalents at beginning of the periodⅥ 現金及び現金同等物の期首残高162,844216,395182,025249,233199,858117,530260,97853,813316,790276,079 239,652 173,774 
Ⅶ  Increase in cash and cash equivalents from newly consolidated subsidiaryⅦ  新規連結に伴う現金及び現金同等物の増加額̶4750439̶̶̶̶̶̶̶̶
Ⅷ  Decrease in cash and cash equivalents resulting from exclusion of subsidiaries from consolidation 
Ⅷ  連結除外に伴う現金及び現金同等物の減少額̶̶̶(858)̶̶̶̶̶̶̶̶
Ⅸ  Cash and cash equivalents at end of the periodⅨ 現金及び現金同等物の期末残高216,395182,025249,233199,858117,530260,97853,813316,790276,079239,652 173,774 172,405 
Consolidated Statement of Cash Flows 連結キャッシュ・フロー計算書
株式会社INPEX ファクトブック 202028
Corporate Information
As of December 31, 2020
Company Name:INPEX CORPORATION社名：株式会社INPEXEstablished:April 3, 2006設立：2006年4月3日Capital:¥290,809,835,000資本金：2,908億983万5,000円
Company Headquarters:Akasaka Biz Tower, 5-3-1 Akasaka, Minato-ku, Tokyo 107-6332, Japan住所：〒107-6332 東京都港区赤坂5-3-1 赤坂BizタワーNumber of Employees (Consolidated):3,163従業員数：3,163人（連結）
Stock data株式データ
Authorized Shares:3,600,000,000 common stocks, 1 Class A Stock発行可能株式総数:普通株式 3,600,000,000株、 甲種類株式 1株Total Number of Shareholders and Issued Shares株主数及び発行済株式の総数Common Stocks:108,717 shareholders / 1,462,323,600 shares普通株式 :108,717名／1,462,323,600株Class A Stock*:1 shareholder (Minister of Economy, Trade and Industry) / 1 share甲種類株式*:1名（経済産業大臣）／1株
2020年12月31日現在
*  当社定款においては、経営上の一定の重要事項の決定について株主総会または取締役会の決議に加え、甲種類株主総会の決議が必要である旨が定められている。
*  比率は株式数の発行済株式総数（普通株式） に対する割合。比率は単位未満を四捨五入。
* 株価及び月間出来高は、株式分割の影響を考慮した遡及修正後の数値となっている。
*  INPEX’s Articles of Incorporation stipulate that certain major corporate decisions require a resolution by the holder of Class A Stock in addition to the approval of the shareholders’ meetings or the Board of Directors.
*1  The shareholder ratio is calculated after subtracting treasury shares (1,966,500 shares). The shareholder ratio is rounded off to the nearest whole number.*2 Excludes one Class A Stock.
*  The percentages of total common shares are for total number of issued common shares. The shareholder ratio is rounded off to the nearest whole number.
*  Share price and monthly trading volumes have been retroactively adjusted to reflect the impact of the stock split.
Unit conversion単位換算
Shareholding by shareholder type株式の分布状況
Share price range, Trading volume株価チャート
Name株主名Number of shares 持株数(株)
Percentages of total common shares*1
持株比率 (%)*1
Minister of Economy, Trade and Industry*2経済産業大臣 *2276,922,80018.96
Japan Petroleum Exploration Co., Ltd.石油資源開発株式会社106,893,2007.32
The Master Trust Bank of Japan, Ltd. (Trust Account)日本マスタートラスト信託銀行株式会社(信託口)106,437,3007.29
Custody Bank of Japan (Trust Account)株式会社日本カストディ銀行（信託口）59,699,1004.09
ENEOS Holdings, Inc.ENEOSホールディングス株式会社43,810,8003.00
Custody Bank of Japan (Trust Account 7)株式会社日本カストディ銀行（信託口7）27,530,0001.89
JAPAN SECURITIES FINANCE CO., LTD.日本証券金融株式会社24,209,7001.66
SMBC Nikko Securities Inc.SMBC日興証券株式会社21,957,9001.50
STATE STREET BANK WEST CLIENT - TREATY 505234ステートストリートバンクウェストクライアントトリーティー 50523417,373,1431.19
THE BANK OF NEW YORK MELLON 140051ザバンクオブニューヨークメロン14005116,988,1001.16
(%)*Financial institutions (Including trust accounts)金融機関（信託口を含む）23.68 
Securities companies証券会社6.33 
Other domestic corporationsその他国内法人14.27 
Minister of Economy, Trade and Industry経済産業大臣18.94 
Foreign corporations and other外国法人等28.16 
Individuals and other個人その他8.49 
Treasury shares自己名義株式0.13 
Crude oil原油Natural gas天然ガスSales gas  販売ガスLPGLNG
1 kl ≒ 6.29 bbl（バレル） 1 ton ≒ 7.4 bbl1 bbl ≒ 6,000 cf (Natural gas)100 thousand bbl （千バレル）/day ≒ 4 MMton （百万トン）/y (LNG)1 exajoule （百京ジュール） ≒ 163 MMboe （百万boe）
1 cf ≒ 1,000 Btu*1 Bm3（10億m3）≒ 700 thousand ton (LNG)100 MMcf/day ≒ 700 thousand ton/y (LNG)1T （兆）cf ≒ 1 MMton x 20 years (LNG) (20 MMton)1 m3 ≒ 37.32 cf1 ton ≒ 10.5 bbl(Crude oil)
1 ton ≒ 8.8 bbl (Crude oil) ≒ 1,400 m3 (Natural gas) ≒ 53 MMBtu*
Note:  The above conversion figures are estimates. Conversion figures used for production and reserves in this Fact Book may be different from the above conversion figures. As such, we do not guarantee those figures’ accuracy as applied to dealing or verification.* British Thermal Unit
注： 単位換算値は概算値。本ファクトブックに記載の生産量・埋蔵量で使用の換算値とは異なる場合がある。また、取引や証明に使用できる精度を保証していない。* 英国熱量単位
免責事項本ファクトブック 2020年12月期は投資判断の参考となる情報提供のみを目的として作成したものです。当社株式の購入や売却などを勧誘するものではありません。投 資 に 関 す る 決 定 は、 投 資 家 ご 自 身 の 判 断 に お い て 行 わ れ る よ う お 願 い 致 し ま す。掲載内容については細心の注意を払っておりますが、掲載された情報に誤りがあった場合、当社は一切責任を負うも のではありませんのでご了承ください。
その他の注意事項本ファクトブックの財 務 内 容に係る数 値は、単 位 未 満を切り捨てて表 示しています。 表中の括弧内はマイナスの意味です。
DisclaimerInformation contained in Fact Book December 2020 is provided solely for informational purposes and is not an offer or a solicitation of an offer to buy or sell securities. You are requested to make investment decisions using your own judgment. Although INPEX has made sufficient effort to ensure the accuracy of information provided herein, INPEX assumes no responsibility for any damages or liabilities including, but not limited to, those due to incorrect information or any other reason.
Note:  Financial figures in this Fact Book have been rounded down to the nearest unit. Figures in parentheses denote negative amounts.
(Thousand shares千株） （¥円）Monthly trading volume (Left scale)月間出来高 （左軸）Price range (Right scale)株価 （右軸）
150,000
300,000
450,000
600,000
20092010201120122013201420152017201620182019202020214 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 45 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 78 9 101112 1 2 3 4 5 6 78 9 101112 1 2 3 4 5 6 78 9 101112 1 2 3 4 5 6 78 9 101112 1 2 3 4 5 67445568 9 101112 1 2 37 8 9 101112 1 2 3
Major shareholders (Common shares)大株主の状況（普通株式）
*1  比率は自己株式（1,966,500株）を控除して計算。比率は単位未満を四捨五入。*2  経済産業大臣の保有株式数には、甲種類株式は含まれていない。
Corporate Information会社情報
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