US crude futures rose nearly 1% while Brent added 2% as the dollar index fell for the first time in five sessions, following a spate of data from the world's largest energy consumer, and after work was suspended in a major pipeline system in the North Sea.
As of 07:21 GMT, US West Texas Intermediate rose 0.73% to $57.78 a barrel from the opening of $57.36, while Brent futures due on February 15 gained 1.89% to $64.60 a barrel from the opening of $63.40, as the dollar index shed 0.06% to 93.84 from the opening of 93.90.
Earlier US data showed the JOLTS job openings fell to 6 million jobs from 6.09 million in September, compared to expectations of 6.03 million, while investors now await the Federal Reserve policy meeting tomorrow.
A major pipeline in the North sea was closed, stopping 400 thousand bpd from been shifted to near Edinburgh, buoying Brent futures sharply.
Baker Hughes reported a rise of 2 in the US rig count to a total of 751 rigs, the highest since December 8.
US output rose by 25 thousand bpd in the week ending December 1 to a total of 9.71 million bpd, the highest on record.