Oil prices fell to new multi-month lows Friday as data showed U.S. producers put more drilling rigs to work despite a lingering world-wide glut. Many analysts and investors have warned for months that crude production could keep rising even amid massive cutbacks from U.S. producers. U.S. prices have fallen into bear market territory in recent weeks as that scenario has started to play out. Now U.S. producers are putting more rigs to work. Baker Hughes Inc.’s weekly oil rig count rose by 5 to 664 this week, on top of a 20-rig increase last week. Combined with larger-than-expected production from the Organization of the Petroleum Exporting Countries, the move shows how a glut of oil may persist despite the slide in prices over the past year, analysts said. “It’s just one more thing that adds to that bearish feel to the market,” said John Saucer, vice president of research and analysis at Mobius Risk Group in Houston. He said oil prices are likely to test their lows for 2015. Production “has really overwhelmed demand, even though demand is up.”