(Bloomberg) -- Even the longest rally in four years wasn’t enough to stop the withdrawal from the exchange-traded fund that tracks oil prices. The U.S. Oil Fund lost $299.1 million last week, the most since March. West Texas Intermediate crude entered a bull market on Thursday helped by the 16 percent jump in a seven-session advance.To contact the reporter on this story: Ryan Sachetta in Houston at rsachetta@bloomberg.net. To contact the editors responsible for this story: Margot Habiby at mhabiby@bloomberg.net, Debarati Roy, Brian Wingfield