Heidi’s Indpendent Grocer Sarnia Chamber Member Grocery store. Contact Info Phone: 519-882-2211 Location 4136 Petrolia Line Petrolia, ON N0N 1R0 View Map Year Established: 2000 Key Contact: Heidi Soudant NAICS Code: 44511 - Supermarkets and other grocery (except convenience) stores Site Selector Map: View location