EOG Resources, Inc., together with its subsidiaries, explores for, develops, produces, and markets crude oil, natural gas liquids, and natural gas primarily in producing basins in the United States, the Republic of Trinidad and Tobago and internationally. The company was formerly known as Enron Oil & Gas Company. EOG Resources, Inc. was incorporated in 1985 and is headquartered in Houston, Texas.

Veren Inc. explores, develops, and produces oil and gas properties in Canada and the United States. The company focuses on crude oil, tight oil, natural gas liquids, shale gas, and natural gas reserves. Its properties are located in the provinces of Saskatchewan, Alberta, British Columbia, and Manitoba; and the states of North Dakota. The company was formerly known as Crescent Point Energy Corp. and changed its name to Veren Inc. in May 2024. Veren Inc. was incorporated in 1994 and is headquartered in Calgary, Canada.

Baytex Energy Corp., an energy company, engages in the acquisition, development, and production of crude oil and natural gas in the Western Canadian Sedimentary Basin and in the Eagle Ford, the United States. The company offers light oil and condensate, heavy oil, natural gas liquids, and natural gas. It also holds interest in the Eagle Ford property in Texas; Viking and Lloydminster properties in Alberta and Saskatchewan; and Peace River and Duvernay properties in Alberta. Baytex Energy Corp. was incorporated in 1993 and is headquartered in Calgary, Canada.

Vermilion Energy Inc., together with its subsidiaries, engages in the acquisition, exploration, development, and production of petroleum and natural gas. The company has properties in West Central Alberta, southeast Saskatchewan, Manitoba, and West Pembina in Canada; Wyoming in the United States; southwest Bordeaux and Paris Basin in France; the Netherlands; Germany; Ireland; Croatia; Slovakia; and Australia. The company was founded in 1994 and is headquartered in Calgary, Canada.

Epsilon Energy Ltd., a North American onshore independent natural gas and oil company, engages in the acquisition, development, gathering, and production of natural oil and gas reserves in the United States. The company operates through Upstream and Gathering System segments. It has natural gas production in the Marcellus Shale in Pennsylvania; and oil, natural gas liquids, and natural gas production in the Permian Basin in Texas and New Mexico, and Anadarko Basin in Oklahoma. Epsilon Energy Ltd. was incorporated in 2005 and is based in Calgary, Canada.

U.S. Energy Corp., an independent energy company, focuses on the acquisition, exploration, and development of oil and natural gas properties in the United States. It holds interests in various oil and gas properties located in the Rockies region, including Montana, Wyoming, and North Dakota; the Mid-Continent region comprising Oklahoma, Kansas, and North and East Texas; West Texas; South Texas; and the Gulf Coast regions. The company was incorporated in 1966 and is headquartered in Houston, Texas.

Crescent Point Energy Corp. explores, develops, and produces oil and gas properties in Canada and the United States. The company focuses on crude oil, tight oil, natural gas liquids, shale gas, and natural gas reserves. Its properties are located in the provinces of Saskatchewan, Alberta, British Columbia, and Manitoba; and the states of North Dakota. Crescent Point Energy Corp. was incorporated in 1994 and is headquartered in Calgary, Canada.

Gran Tierra Energy Inc., together with its subsidiaries, engages in the exploration and production of oil and gas properties in Colombia and Ecuador. The company was founded in 2003 and is headquartered in Calgary, Canada.