Oil edged up towards $64 a barrel on Tuesday, helped by a North Sea pipeline outage, OPEC-led supply cuts and expectations that U.S. crude inventories had fallen for a fifth week. But rising U.S. output has put a lid on gains. Shale production will rise to a record in January, according to a government forecast published on Monday, as higher prices encourage increased drilling. Brent crude LCOc1, the global benchmark, was up 13 cents or 0.2 percent to $63.54 a barrel at 11:45 a.m. (1645 GMT) U.S. crude CLc1 gained 25 cents or 0.4 percent to $57.41. The shutdown of the North Sea’s Forties pipeline since last week has supported Brent, as Forties is the largest of the five crude grades underpinning the benchmark. On Dec. 12, Brent reached $65.83, its highest since mid-2015. “You’ve had a little surge because the pipeline is still plaguing […]