U.S. crude oil futures settled at another record in volatile, choppy trading, as technical strength combined with skepticism about the dollar's long-term prospects after the Federal Reserve's liquidity action.

Oil Refinery in California

U.S. crude closed on the New York Mercantile Exchange at $108.75 a barrel, up 85 cents. Earlier in the day, oil hit an intraday high of $109.72 a barrel, marking the fifth straight day of new highs.