A U.S. Senate vote in Washington on whether or not to authorize a military response to Syria's alleged use of chemical weapons against its own citizens has been postponed, as President Barack Obama said he "fervently" preferred a diplomatic solution over a military one, Fox News reported.
West Texas Intermediate crude oil for October delivery shed $2.02 to $107.31 per barrel. Reformulated blendstock gasoline dropped 6.42 cents to $2.7382 per gallon. Heating oil dropped 5.1 cents to $3.0673 per gallon.
Natural gas gave up 3 cents to $3.58 per million British thermal units.
At the pump, the national average price of unleaded gasoline dropped to $3.564 per gallon Tuesday, down from Monday's $3.57, AAA's daily fuel gauge report said.