12 articles
Amoco Canada
Amoco Canada Petroleum Company was a Calgary-based Canadian oil and gas producer, incorporated in 1969 as a subsidiary of Standard Oil of Indiana and best known for acquiring Dome Petroleum in 1988.
Athabasca Oil Corporation
Athabasca Oil Corporation is a Calgary-based Canadian oil and gas producer with SAGD bitumen projects at Leismer and Hangingstone in Alberta's Athabasca oil sands, plus Duvernay light oil.
Baytex Energy
Baytex Energy is a Calgary, Alberta-based oil and natural gas company founded in 1993, producing light and heavy oil in the Western Canadian Sedimentary Basin.
Husky Energy
Husky Energy was a Calgary, Alberta-based integrated oil and gas company producing crude oil, bitumen, and natural gas from 1938 until it merged with Cenovus Energy in 2021.
International Petroleum Corporation
International Petroleum Corporation is a Canadian oil and gas exploration and production company in the Lundin Group, created in 2017 from a Lundin Petroleum spin-off.
MEG Energy
MEG Energy was a Canadian oil sands company producing roughly 100,000 barrels of bitumen per day at Christina Lake in Alberta using steam-assisted gravity drainage.
Paramount Resources
Paramount Resources is a Canadian independent oil and gas exploration and production company headquartered in Calgary, Alberta, founded by geologist Clay Riddell and public since 1978.
Seven Generations Energy
Seven Generations Energy was a Calgary oil and gas company founded in 2008 that developed liquids-rich Montney resources in Alberta, becoming Canada's largest condensate producer.
Strathcona Resources
Strathcona Resources is a Calgary-based Canadian heavy oil producer formed in 2020 by Waterous Energy Fund, which became a public company in October 2023 through acquiring Pipestone Energy.
Tourmaline Oil Corp.
Tourmaline Oil Corp. is a Calgary-based Canadian oil and gas company founded in 2008 by Michael Rose and identifying itself as Canada's largest natural gas producer.
Veren Inc.
Veren Inc. was a Calgary-based Canadian oil and gas producer formed in 2024 when Crescent Point Energy changed its name, acquired by Whitecap Resources in May 2025.
Whitecap Resources
Whitecap Resources is a Calgary-based Canadian oil and natural gas producer operating in Alberta, Saskatchewan, and British Columbia, ranked among Canada's largest after merging with Veren in May 2025.