or estimated." This was sent to Copyright examinations on December 19, 2016: Devon Canada Corporation, Devon's Canadian operations, which was established on January 1, 1982, are conducted by Devon Energy's wholly owned subsidiary which is headquartered in downtown Calgary, Alberta. Notes References Proposed energy projects Petroleum geology Unconventional oil Athabasca oil sands Bituminous sands Petroleum industry Economy of Canada Proposed energy infrastructure in Canada