DALLAS, 2015-7-27 — /EPR Retail News/ — SEI Fuel Services, Inc. (SEI Fuels) is pleased to announce the purchase of the dealer fuel supply business of LavigneBaker Petroleum, LLC, in and around New Orleans, LA. The transaction closed July 16th. SEI Fuels entered the wholesale fuel business in 2012 when it and its parent company, 7‑Eleven, Inc.,…