New evidence of surging U.S. oil supplies sent prices on a roller-coaster ride Thursday, reflecting the growing divide among traders over whether an eight-month rout is over. The U.S. Energy Information Administration said oil inventories grew by 7.7 million barrels in the week ended Feb. 13. Analysts said swelling stockpiles are a sign that producers aren’t cutting back on output despite a more than 50% collapse in prices since last summer. In its report, the EIA said U.S. oil production was on track to reach a 42-year high this month. But traders in the futures market had been bracing for much worse, and many took the data as a cue to buy. On Wednesday, an industry group had estimated a jump of 14.3 million barrels for last week, which would have been a record had it been borne out in the government data. Although both reports depend on surveys […]