Libya is an OPEC member and holds the largest proven oil reserves in Africa (followed by Nigeria and Algeria), 41.5 Gbbl (6.60×10⁹ m³) as of January 2007, up from 39.1 Gbbl (6.22×10⁹ m³) in 2006.
About 80% of Libya's proven oil reserves are located in the Sirte Basin, which is responsible for 90% of the country's oil output.
The state-owned National Oil Corporation (NOC) dominates Libya's oil industry, along with smaller subsidiaries, which combined account for around 50% of the country's oil output.
Among NOC's subsidiaries, the largest oil producer is the Waha Oil Company (WOC), followed by the Agoco, Zueitina Oil Company (ZOC), and Sirte Oil Company (SOC).
Oil resources, which account for approximately 95% of export earnings, 75% of government receipts, and over 50% of GDP.
Oil revenues constitute the principal foreign exchange source.
Reflecting the heritage of the command economy, three-quarters of employment is in the public sector, and private investment remains small at around 2% of GDP.

Falling world oil prices in the early 1980s and economic sanctions caused a serious decline in economic activity, eventually leading to a slow private sector rehabilitation.
At 2.6% per year on average, real GDP growth was modest and volatile during the 1990s.
Libya's GDP grew in 2001 due to high oil prices, the end of a long cyclical drought, and increased foreign direct investment following the suspension of UN sanctions in 1999.
Real GDP growth has been boosted by high oil revenues, reaching 4.6% in 2004 and 3.5% in 2005.
Despite efforts to diversify the economy and encourage private sector participation, extensive controls of prices, credit, trade, and foreign exchange constrain growth.

Although UN sanctions were suspended in 1999, foreign investment in the Libyan gas and oil sectors were severely curtailed due to the U.S. Iran and Libya Sanctions Act (ILSA), which capped the amount foreign companies can invest in Libya yearly at $20 million (lowered from $40 million in 2001).
As of May 2006, the U.S. has removed Libya from its list of states that sponsor terrorism and has normalised ties and removed sanctions.
This clears the road for U.S. oil companies to exploit Libyan oil and is expected to have a positive impact on the Libyan economy.

The NOC hopes to raise oil production from 1.80 million bpd in 2006 to 2 million bpd by 2008.
FDI into the oil sector is likely, which is attractive due to its low cost of oil recovery, high oil quality, and proximity to European markets.
Most Libyan oil is sold on a term basis, including to the country's Oilinvest marketing network in Europe; to companies like Agip, OMV, Repsol YPF, Tupras, CEPSA, and Total; and small volumes to Asian and South African companies.

Notes:

1.
Energy Information Administration (2007)
Libya is an OPEC member and holds the largest proven oil reserves in Africa (followed by Nigeria and Algeria), 41.5 Gbbl (6.60×10⁹ m³) as of January 2007, up from 39.1 Gbbl (6.22×10⁹ m³) in 2006. About 80% of Libya's proven oil reserves are located in the Sirte Basin, which is responsible for 90% of the country's oil output. The state-owned National Oil Corporation (NOC) dominates Libya's oil industry, along with smaller subsidiaries, which combined account for around 50% of the country's oil output. Among NOC's subsidiaries, the largest oil producer is the Waha Oil Company (WOC), followed by the Agoco, Zueitina Oil Company (ZOC), and Sirte Oil Company (SOC). Oil resources, which account for approximately 95% of export earnings, 75% of government receipts, and over 50% of GDP. Oil revenues constitute the principal foreign exchange source. Reflecting the heritage of the command economy, three-quarters of employment is in the public sector, and private investment remains small at around 2% of GDP.
Falling world oil prices in the early 1980s and economic sanctions caused a serious decline in economic activity, eventually leading to a slow private sector rehabilitation. At 2.6% per year on average, real GDP growth was modest and volatile during the 1990s. Libya's GDP grew in 2001 due to high oil prices, the end of a long cyclical drought, and increased foreign direct investment following the suspension of UN sanctions in 1999. Real GDP growth has been boosted by high oil revenues, reaching 4.6% in 2004 and 3.5% in 2005. Despite efforts to diversify the economy and encourage private sector participation, extensive controls of prices, credit, trade, and foreign exchange constrain growth.
Although UN sanctions were suspended in 1999, foreign investment in the Libyan gas and oil sectors were severely curtailed due to the U.S. Iran and Libya Sanctions Act (ILSA), which capped the amount foreign companies can invest in Libya yearly at $20 million (lowered from $40 million in 2001). As of May 2006, the U.S. has removed Libya from its list of states that sponsor terrorism and has normalised ties and removed sanctions. This clears the road for U.S. oil companies to exploit Libyan oil and is expected to have a positive impact on the Libyan economy. 
The NOC hopes to raise oil production from 1.80 million bpd in 2006 to 2 million bpd by 2008. FDI into the oil sector is likely, which is attractive due to its low cost of oil recovery, high oil quality, and proximity to European markets. Most Libyan oil is sold on a term basis, including to the country's Oilinvest marketing network in Europe; to companies like Agip, OMV, Repsol YPF, Tupras, CEPSA, and Total; and small volumes to Asian and South African companies.
Notes:

1. Energy Information Administration (2007)
Economy of Libya