UPDATE 1-Pipeline operator Energy Transfer mulls chemicals acquisition -chairman Reuters 2 hrs ago By Liz Hampton May 12 (Reuters) - Energy Transfer is weighing acquisitions in the booming chemicals business, co-founder and executive chairman Kelcy Warren said on Wednesday at a conference in North Dakota. The company, which got a $2.4 billion windfall from a February storm-related surge in natural gas prices, could enter the chemicals and plastics market, preferably through an acquisition, he said. "I want to buy someone," said Warren, who recently stepped into the role of executive chairma...