By Liz Hampton DENVER (Reuters) -Oil major BP has begun drilling an appraisal well in Texas for its U.S. carbon capture and sequestration business, an executive said on Monday. In May, BP said it and partner Linde planned to develop a site along the Texas coast to bury carbon dioxide produced from a Linde manufacturing site outside of Houston. “We are currently using our subsurface and expertise to drill an appraisal well, for our U.S. carbon capture and storage business,” Jack Collins, finance chief of BP’s BPX Energy shale subsidiary, said at the EnerCom conference. He declined to provide de…