Hedge funds and other money managers expanded their bullish bets on oil prices last week amid signs that U.S. shale growth is slowing, the global oil market is further tightening, and oil demand could be resilient in the coming months. Portfolio managers increased their combined net long position—the difference between bullish and bearish bets—in the six most important oil contracts by 37 million barrels in the week to March 26, according to the latest exchanges reports compiled by Reuters market analyst John Kemp . The net long increased thanks to the opening of 33 million barrels of bullish positions and a drop by 4 million barrels in the short positions. In the two most important oil contracts, money managers boosted their net long position in WTI by 29 million barrels and increased the net long position in Brent by 13 million barrels in the week ending March 26, according […]