WilcoHess Testing Vending Machines on Gas IslandRetailer partners with Vendgogh to snare sales from gas-only customers at select stores. WilcoHess Testing Vending Machines on Gas IslandRetailer partners with Vendgogh to snare sales from gas-only customers at select stores. PEOPLE NEWS Imperial Oil and the Petroleum Equipment Institute elect new presidents. Willi Oil Co. Sold to Morton Grove Company Units will continue to provide Shell products and convenience. Delek Completes Williamson Oil Co. Acquisition Deal brings chain to 343 stores operating in Southeast. Citgo Marketers Honored Petroleum company recognizes 18 company's for their fund-raising efforts.