Chevron Corporation is an American multinational energy corporation predominantly specializing in oil and gas. The second-largest direct descendant of Standard Oil, and originally known as the Standard Oil Company of California, it is headquartered in San Ramon, California, and active in more than 180 countries. Within oil and gas, Chevron is vertically integrated and is involved in hydrocarbon exploration, production, refining, marketing and transport, chemicals manufacturing and sales, and power generation.
Ovintiv Inc. is an American independent petroleum company. The company was formed in 2020 through a restructuring of its Canadian predecessor, Encana. Ovintiv is incorporated in Delaware and headquartered in Denver, Colorado.
Chesapeake Energy Corporation is an American exploration and production company, headquartered in Oklahoma City.
Devon Energy Corporation is an energy company engaged in hydrocarbon exploration in the United States. It is organized in Delaware and its corporate operative headquarters are in the 50-story Devon Energy Center in Oklahoma City, Oklahoma. Its primary operations are in the Barnett Shale STACK formation in Oklahoma, Delaware Basin, Eagle Ford Group, and the Rocky Mountains.
Anadarko Petroleum Corporation was a company engaged in hydrocarbon exploration. It was organized in Delaware and headquartered in two skyscrapers in The Woodlands, Texas: the Allison Tower and the Hackett Tower, both named after former CEOs of the company. In 2019, the company was acquired by Occidental Petroleum.
EOG Resources, Inc. is an American energy company engaged in hydrocarbon exploration. It is organized in Delaware and headquartered in the Heritage Plaza building in Houston, Texas.
UGI Corporation is a natural gas and electric power distribution company headquartered in King of Prussia, Pennsylvania, with extensive operations in the United States and Europe.
Southpointe is a 589-acre (238 ha) suburban business park located in Cecil Township near Canonsburg, Pennsylvania, south of Pittsburgh and is a familiar landmark along Interstate 79. It is home to many corporations, including Fortune 500 members CONSOL Energy and Viatris as well as Ansys.
Noble Energy, Inc. was a company engaged in hydrocarbon exploration headquartered in Houston, Texas. In October 2020, the company was acquired by Chevron Corporation.
Chief Oil & Gas is a company founded in Dallas, Texas in 1994 by Trevor Rees-Jones. Its primary holdings of natural gas were developed in the core areas of the Barnett Shale in Tarrant County, Denton County and Parker County. In 1999, new technology in horizontal drilling and hydraulic fracturing along with rising gas prices made the Barnett Shale, an unconventional resource for natural gas, more economical. Chief rapidly expanded its leasehold position and drilling and production program in the Barnett Shale to become the fields second largest producer there.
SandRidge Energy, Inc. is a company engaged in hydrocarbon exploration in the Mid-Continent region of the United States. It is organized in Delaware and headquartered in Oklahoma City, Oklahoma.
Rex Energy Corporation was a natural gas exploration and production company headquartered in State College, Pennsylvania. In 2018, the company was acquired by PennEnergy Resources.
National Fuel Gas Company is a diversified energy company with $6.2 billion in assets distributed among the following five operating segments: Exploration and Production, Pipeline and Storage, Gathering, Utility, and Energy Marketing. National Fuel Gas was incorporated in 1902 and is based in Williamsville, New York.
Southwestern Energy is a natural gas exploration and production company organized in Delaware and headquartered in Spring, Texas. The company is ranked 893rd on the Fortune 500.
Range Resources Corporation is a natural gas exploration and production company headquartered in Fort Worth, Texas. It operates in the Marcellus Formation, where it is one of the largest land owners
Denbury Inc. was a company engaged in hydrocarbon exploration and extraction via enhanced oil recovery, utilizing carbon dioxide to extract petroleum from fields that have been previously exploited. In November 2023 it was acquired by ExxonMobil.
American Energy Partners, LP, also known as AELP, was an American natural gas and oil company founded in April 2013 by Aubrey K. McClendon. The company managed affiliates responsible for natural shale gas and oil production and exploration in the United States, as well as management of assets, minerals, royalties and non-operated properties. It was headquartered in Oklahoma City, Oklahoma, and employed over 450 people as of August 2015. AELP announced on May 18, 2016, two months after McClendon's death, that it would end operations and close by the end of summer 2016.
Antero Resources Corporation is an American company engaged in hydrocarbon exploration. It is organized in Delaware and headquartered in Denver, Colorado. The company's reserves are entirely in the Appalachian Basin and are extracted using hydraulic fracturing.
CNX Resources Corporation is a natural gas company based in Pittsburgh with operations in the Appalachian Basin, primarily in the Marcellus Shale and Utica Shale in Pennsylvania, Ohio and West Virginia. It also develops coalbed methane properties in Virginia along with a methane capture and abatement program. The company also has extensive midstream operations and is one of the largest producers of natural gas in the United States.
Equitrans Midstream Corporation, also known as E-Train, is an American energy company engaged in the pipeline transportion of natural gas and natural gas liquids. It is headquartered in Canonsburg, Pennsylvania.
US$6.909 billion (2023)
US$2.314 billion (2023)