The December WTI contract declined by 86 cents, or 1.3 percent, to settle at $66.18 a barrel after trading within a range from $65.33 to $67.26. Posting a sharper, 1.8-percent decrease Tuesday was the December Brent contract, which slipped $1.43 to end the day at $75.91.

Influencing Tuesday’s crude price movements were ongoing fears that the , Bloomberg reported earlier. Also stoking the bearish mood were expectations of a build in U.S. crude oil inventories.

November reformulated gasoline (RBOB) also ended the day lower, losing two cents to settle just under $1.81 a gallon.

Henry Hub natural gas futures, which have been fairly bullish in recent weeks given lower-than-usual inventories, also ended the day lower. The December contract price settled at $3.19, reflecting a one-cent drop.