BP Plc wants to be your power supplier, too. : The oil and natural gas giant is seeking permission to become a retail electricity provider to homes and businesses initially in Illinois, Ohio, Texas, California and Pennsylvania, according to a Federal Energy Regulatory Commission filing issued last week. BP Energy Retail’s affiliates own or control more than 2,000 megawatts of wind generation. “It gives BP a huge new branding opportunity,” said Tyson Slocum, director of Public Citizen’s energy program. “They are already a massive power trader.