A.T. Williams Oil Co. was a gas station chain based in Winston-Salem, North Carolina.
In the late 1960s and early 1970s Williams added self service, eventually switching entirely to self-service because that was 95 percent of sales.
[6] In 2005, WilcoHess joint venture acquired Trade Mart and the business was renamed Trade-Wilco, with gas pumps being replaced with Hess.
[1] In 2013, though it was leaving the business, Hess bought the remaining 56 percent interest in WilcoHess LLC, which had 353 convenience stores and 37 travel plazas in Alabama, Florida, Georgia, North Carolina, Pennsylvania, South Carolina, Tennessee and Virginia.
[8] On June 23, 2016, Pilot Flying J and Speedway announced a new joint venture between the two companies that would see 41 Speedway locations—all former Wilco Hess locations—and 79 Pilot Flying J locations primarily in the Southeastern United States form PFJ Southeast LLC.