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For a list of companies based within Dallas city limits, go to List of companies in Dallas. The Dallas/Fort Worth Metroplex is home to over 20 corporate headquarters, making the Dallas/Fort Worth Metroplex one of the largest corporate headquarters concentration in the United States.
Patterson Drilling Company was founded in 1978 by Cloyce Talbott and Glenn Patterson. [1] UTI Energy was formed in 1986 to purchase Universal Well Services, Union Supply Company, Triad Drilling Company, and International Petroleum Services Company. In 2001, Patterson Drilling acquired UTI Energy and renamed the company Patterson-UTI Energy. [3]
This is a list of oilfield service companies – which provide services to the petroleum exploration and production industry but do not typically produce petroleum. In the list, notable subsidiary companies and divisions are listed as sub-lists of their current parent companies.
Helmerich & Payne Flex Rig drilling the Bakken. Helmerich & Payne, Inc. (/ ˈ h ɛ l m r ɪ k / HELM-rik) is an American petroleum contract drilling company engaged in oil and gas well drilling and related services for exploration and production companies [2] headquartered in Tulsa, Oklahoma, with operations throughout the world.
Ensign is one of the world's land-based drilling and well servicing contractors serving crude oil, natural gas and geothermal operators. [verification needed] The company’s premium service is focused on contract drilling with complementary services such as directional drilling, underbalanced and managed pressure drilling, rental equipment, well servicing and production services. [4]
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NOV Inc., formerly National Oilwell Varco, is an American multinational corporation based in Houston, Texas.It is a worldwide provider of equipment and components used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry.
Major Drilling Group International Inc. is the world's largest mineral drilling company serving the mining industry. [citation needed]To support its customers’ varied exploration drilling requirements, Major Drilling maintains field operations and offices in Canada, the United States, Mexico, South America, Asia, Africa and Europe.