Crude oil prices fell 91 cents to $67.58 per barrel. Heating oil prices dropped 0.0191 cents to $1.751 per gallon. Reformulated blendstock gasoline lost 0.0164 cents to $1.9382 per gallon. Natural gas prices dropped 0.126 cents to $3.742 per million British thermal units.
At the pump, the average price for a gallon of regular unleaded gasoline was $2.619 Monday, up from Sunday's $2.613 a gallon, AAA said.
