HRG Group, Inc., formerly Harbinger Group Inc. and Zapata Corporation, was a holding company based in Rochester, New York, having originated from an oil company started by a group including future U.S. president George H. W. Bush. In 2009, it was renamed the Harbinger Group Inc.
Baker Hughes Company is an American energy company based in Houston, Texas. As one of the world's largest oil field services companies, it provides products and services for oil well drilling, formation evaluation, completion, production, reservoir consulting, and tubular running services. It operates in over 120 countries, with research and manufacturing facilities in Australia, Singapore, Malaysia, India, UAE, Saudi Arabia, Italy, Germany, Norway, Oklahoma, Louisiana and Missouri. From 2017 to 2020, the company was majority owned by General Electric (GE); however, GE no longer owns an economic stake in the company. The company is incorporated in Delaware.
Aker Solutions ASA is a Norwegian engineering firm headquartered in Oslo. The firm's production is focused on energy infrastructure, including systems and services required to de-carbonize oil and gas production, build wind-to-grid infrastructure and engineer CO2 capture and sequestration.
Transocean Ltd. is an American drilling company. It is the world's largest offshore drilling contractor based on revenue and is based in Steinhausen, Switzerland. The company has offices in 20 countries, including Canada, the United States, Norway, United Kingdom, India, Brazil, Singapore, Indonesia, and Malaysia.
China Oilfield Services (COSL) is an oilfield services company. It is a majority owned subsidiary of Chinese state owned company CNOOC Group. It also has a listed sister company in Hong Kong, CNOOC Limited.
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.
A blowout is the uncontrolled release of crude oil and/or natural gas from an oil well or gas well after pressure control systems have failed. Modern wells have blowout preventers intended to prevent such an occurrence. An accidental spark during a blowout can lead to a catastrophic oil or gas fire.
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.
Dolphin Drilling Holdings Limited is an offshore drilling rig company headquartered in Aberdeen, Scotland, United Kingdom with its main subsidiary Dolphin Drilling AS located in Sandnes, Norway. Until 2019, Dolphin Drilling had its headquarters in Oslo, Norway.
Aker Drilling, was a Norwegian drilling rig operation company; based in Stavanger, Norway and majority owned by the Aker Group. It was listed on Oslo Stock Exchange under the ticker - 'AKD'.
Smedvig ASA, ("Smedvig"), was a Norwegian offshore oil rig company headquartered in Stavanger until it was acquired by rig newcomer SeaDrill of tanker mogul John Fredriksen. At time of the merger Smedvig operated two semi submersibles, one drillship and one jack up rig in the Norwegian and British sector of the North Sea. A fleet of seven tender rigs were operated in South East Asia from the Singaporean subsidiary Smedvig Asia. As part of the merger, Smedvig's staff was transferred to Seadrill with Smedvig senior personnel assuming key positions in Seadrill. Smedvig was delisted from the OSE and NYSE, while Seadrill is listed on the Oslo Stock Exchange.
Songa Offshore SE is a European offshore drilling contractor founded in 2005 with offices in Cyprus, Stavanger, Oslo, Houston, Kuala Lumpur, Aberdeen, and Singapore.
Awilco Offshore was a Norwegian drilling rig owner. In 2008 the company operated five jackup rigs and two semi-submersible accommodation rigs, with several others on order. Awilco was founded in 2005, headquartered in Oslo and was listed on the Oslo Stock Exchange. Operation of its rigs was done by the company Premium Drilling, owned by Awilco and Sinvest. The company was acquired by China Oilfield Services in 2008 and merged into its existing operations.
Sinvest is a Norwegian oil drilling investment company, with headquarters in Kristiansand. The company is a long-term financial and strategic investor in oil resources and offshore companies and has been listed on the Oslo Stock Exchange since 2001.
Equinor ASA is a Norwegian state-owned multinational energy company headquartered in Stavanger, Norway. It is primarily a petroleum company operating in 36 countries with additional investments in renewable energy. In the 2020 Forbes Global 2000, Equinor was ranked as the 169th-largest public company in the world. In 2023, the company was ranked 52nd in the same list. As of 2021, the company has 21,126 employees.
Nabors Industries Limited is an American global oil and gas drilling contractor that has operated since 1972. Based in Houston, Texas, Nabors operates the world’s largest land drilling rig fleet, with around 500 rigs operating in over 25 countries – in almost every significant O&G basin on the planet. It also has the largest number of high-specification rigs and custom rigs, built to withstand challenging conditions such as extreme cold, desert and many complex shale plays.
Odfjell Drilling Ltd. is an oil drilling, well service, and engineering company.
Krishna Godavari Basin is a peri-cratonic passive margin basin in India. It is spread across more than 50,000 square kilometres in the Krishna River and Godavari River basins in Andhra Pradesh. The site is known for the D-6 block where Reliance Industries discovered the biggest natural gas reserves in India in 2003.
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.
Rex International Holding is an oil and gas company headquartered in Singapore and listed on the Singapore Exchange Securities Trading Limited’s Mainboard. The company was publicly listed on 31 July 2013 on Singapore Exchange's secondary board Catalist and started trading on the Singapore Exchange's Mainboard on 8 March 2022.
NOK 810 million (2006)
