An oil platform is a large structure with facilities to extract and process petroleum and natural gas that lie in rock formations beneath the seabed. Many oil platforms will also have facilities to accommodate the workers, although it is also common to have a separate accommodation platform linked by bridge to the production platform. Most commonly, oil platforms engage in activities on the continental shelf, though they can also be used in lakes, inshore waters, and inland seas. Depending on the circumstances, the platform may be fixed to the ocean floor, consist of an artificial island, or float. In some arrangements the main facility may have storage facilities for the processed oil. Remote subsea wells may also be connected to a platform by flow lines and by umbilical connections. These sub-sea facilities may include one or more subsea wells or manifold centres for multiple wells.
Ovintiv Inc. is an American petroleum company based in Denver. The company was formed in 2020 through a restructuring of its Canadian predecessor, Encana.
Transocean Ltd. is an American drilling company. It is the world's largest offshore drilling contractor based on revenue and is based in Vernier, Switzerland. The company has offices in 20 countries, including Canada, the United States, Norway, United Kingdom, India, Brazil, Singapore, Indonesia, and Malaysia.
Sonat, Inc., headquartered in Birmingham, Alabama, was a large Fortune 500 American energy holding company. The company was founded in 1928 and was listed on the New York Stock Exchange under the ticker symbol "SNT". Sonat was primarily involved in transmission and marketing natural gas and oil and gas exploration and production. The company was also involved in contract offshore drilling until 1995 when the offshore business became Transocean. In 1999 Sonat merged with El Paso Corporation. The company was headquartered in the AmSouth-Sonat Tower in downtown Birmingham.
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems.
Tesco Corporation was an oilfield services company that provided top drive rental services on a day-rate basis for land and oil platforms as well as casing running. It was headquartered in Spring Branch, Houston. In December 2017, the company was acquired by Nabors Industries.
Valaris Limited is an offshore drilling contractor headquartered in Houston, Texas, and incorporated in Bermuda. It is the largest offshore drilling and well drilling company in the world, and owns 52 rigs, including 36 offshore jackup rigs, 11 drillships, and 5 semi-submersible platform drilling rigs.
APA Corporation is the holding company for Apache Corporation, an American company engaged in hydrocarbon exploration. It is organized in Delaware and headquartered in Houston. The company is ranked 431st on the Fortune 500.
Diamond Offshore Drilling, Inc. is an offshore drilling contractor. The company is headquartered in Katy, Texas, United States, and has major offices in Australia, Brazil, Mexico, Scotland, Singapore, and Norway.
Axa XL is an American subsidiary of global insurance and reinsurance company Axa. It is headquartered in Stamford, Connecticut, domiciled in Hamilton, Bermuda, and has more than 100 offices on 6 continents.
Seadrill is an offshore drilling contractor providing worldwide offshore drilling services to the oil and gas industry. Its primary business is the ownership and operation of drillships, semi-submersible rigs, and jack-up rigs for operations in shallow to ultra-deep water in both benign and harsh environments. It provides a contract-based service and primarily serves the oil super-majors, integrated oil and gas, state-owned national oil, and independent oil and gas companies.
Weatherford International plc is an American multinational oilfield service company, headquartered in the US and operating in 75 countries globally across the oil and natural gas producing regions. The company provides technical equipment and services used for drilling, evaluation, completion, production, and intervention on gas and oil wells.
Noble Energy, Inc. was a company engaged in hydrocarbon exploration headquartered in Houston, Texas. In October 2020, the company was acquired by Chevron Corporation.
Verso Corporation, now Billerud Americas Corporation, was a North American producer of coated papers including coated groundwood, coated freesheet, and specialty products. The company restructured in 2016 following Chapter 11 bankruptcy. Verso Corporation operated two paper mills in the U.S. In 2021, the company had approximately 1,700 employees.
Maersk Drilling, also known as The Drilling Company of 1972 A/S, was the drilling-rig operator of Maersk. It was based in Lyngby, Denmark. Established in 1972, the company was a Nasdaq Copenhagen–listed company with the ticket name 'DRLCO'.
Atwood Oceanics, Inc. was an offshore drilling contractor headquartered in Houston, Texas. In October 2017, the company was acquired by Ensco plc.
Shell plc is a British multinational oil and gas company headquartered in London, England. Shell is a public limited company with a primary listing on the London Stock Exchange (LSE) and secondary listings on Euronext Amsterdam and the New York Stock Exchange. A core component of Big Oil, Shell is the second largest investor-owned oil and gas company in the world by revenue, and among the world's largest companies out of any industry. Measured by both its own emissions, and the emissions of all the fossil fuels it sells, Shell was the ninth-largest corporate producer of greenhouse gas emissions in the period 1988–2015.
Pride International, Inc. was an offshore oil drilling company headquartered in Houston, Texas. As of February 2011, it operated 26 drilling rigs. In May 2011, it was acquired by Ensco.
Cameron International Corporation (formerly Cooper Cameron Corporation (CCC) and Cooper Oil Tool, Cameron Iron Works) though now operating under Schlumberger, is a global provider of pressure control, production, processing, and flow control systems as well as project management and aftermarket services for the oil and gas and process industries. Cameron was acquired by Schlumberger (SLB) in 2016, and now operates as 'Cameron, an SLB Company.' At the start of the SLB acquisition in 2015, Cameron employed approximately 23,000 people and delivered $9.8 billion in revenue.
SEACOR Holdings, based in Fort Lauderdale, Florida, provides equipment and services to the offshore petroleum industry and the marine transportation industry. An American corporation, the company holds a 70% ownership stake in a bioethanol plant located in Illinois.
$0.964 billion (2020)
$4.263 billion (2020)