Oil drifts as fiscal cliff looms over U.S. economy BANGKOK Oil prices drifted Monday as traders worried about the threat to the U.S. economy if lawmakers and President Barack Obama don't reach an agreement to avoid automatic tax hikes and spending cuts. Benchmark crude for December delivery was unchanged at $86.07 per barrel at midday Bangkok time in electronic trading on the New York Mercantile Exchange. Obama and congressional leaders face a January deadline to reach an agreement or at least come up with a framework to deal with expiring Bush-era tax cuts and automatic spending cuts to defense and domestic programs -- known as the "fiscal cliff." Lawmakers confident U.S. will avoid fiscal cliff Economists say the cuts could cost up to $800 billion, cost 3 million jobs and plunge the U.S. back into recession. Analysts say more stock market turmoil could arise as the deadline approaches. Obama was to begin talking to lawmakers in Washington this week on a deal. Brent crude, used to price international varieties of oil, rose 20 cents to $109.59 a barrel on the ICE Futures exchange in London. Among other energy futures on Nymex: Heating oil rose 0.4 cents to $3.01 a gallon. Wholesale gasoline rose 1.4 cents to $2.672 a gallon. Natural gas was unchanged at $3.503 per 1,000 cubic feet.