Imperial Oil Ltd. engages in the provision of integrated oil business. It operates through the following business segments: Upstream, Downstream, Chemical and Corporate and Other. Read More The Upstream segment includes the exploration and production of crude oil, natural gas, synthetic oil, and bitumen. The Downstream segment focuses on refining crude oil into petroleum products. The Chemical segment manufactures and markets hydrocarbon-based chemicals and chemical products. The Corporate and Other segment covers assets and liabilities that do not specifically relate to business segments. The company was founded on September 8, 1880 and is headquartered in Calgary, Canada. The listed name for IMO is Imperial Oil Limited.