Chevron Canada Ltd., the operator of the project, said earlier this year that it would stop funding further feasibility work on the project and put its stake up for sale.
The expanded convenience business, which brings together two rival distributors, will operate under the Core-Mark brand and will be headquartered in Texas.
Industry watchers say retailer sits in a sweet spot between competitors, offering a more convenient layout than a big box store but a wider selection than a dollar store.
The pandemic has strengthened calls for businesses to provide workers with paid sick leave, as workplaces become a key site for the virus' transmission.