Crude oil dips under $87 With his keys dangling, a driver watches the pump as his car is filled at a lower priced gas station in Denver on April 15, 2011. Consumers paid an average price of $3.62 a gallon nationwide on Thursday according to the travel group AAA. NEW YORK, May 31 (UPI) -- Oil prices slipped under $87 per barrel on the New York Mercantile Exchange as a delayed stockpile report said crude oil inventories rose in the week. The Energy Information Administration said U.S. inventories rose by 2.2 million to 384.7 million in the week ending Friday -- the report a day late due to the Memorial Day holiday. In New York, the price of West Texas Intermediate for July delivery shed $1.31 to $86.51 per barrel, near the low for the year. Natural gas for June delivery gave up 1.2 cents to $2.41 per million British thermal units. Home heating oil added 1.93 cents to $2.7225 per gallon. RBOB gasoline futures for July delivery were up 3.18 cents to $2.7545 per gallon. At the pump, the national average price of unleaded gasoline dropped to $3.62 per gallon from Wednesday's $3.626, AAA said.