On the New York Mercantile Exchange, crude oil, which started the week just above $100 per barrel, shed 76 cents to $102.16.
Natural gas added 13 cents to $6.14 per million British thermal units.
Reformulated blendstock gasoline prices shed 1.43 cents to $2.829 per gallon.
Heating oil prices lost 8.09 cents to $3.097 per gallon.
At the pump, the national average price for a gallon of unleaded rose from Wednesday's $3.383 per gallon to $3.389, the AAA Daily Fuel Gauge Report said.