Wright Express card are now accepted at more than 3,500 Valero-owned fueling stations and convenience store locations, including Diamond Shamrock. According to the company, the new agreement expands the coverage of Wright Express, a provider of fleet fuel cards and fleet management services, in the Southwest and Texas. South Portland-based Wright Express is a provider of fleet charge cards to the fleet maintenance and fueling industry with its cards accepted at more than 160,000 locations. Wright Express also provides information management, payment processing, and financial services to fleets through card partnerships with oil companies and fleet management companies. Through its own universal fleet card program, its partners' card programs and its MasterCard program, Wright Express has nearly four million commercial cards in its markets. Wright Express LLC, a subsidiary of Cendant Corp., employs more than 640 people at its headquarters in South Portland, Maine and its subsidiary in Salt Lake City, Utah. For more information, visit www.wrightexpress.com.