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  2. Schramm Inc. - Wikipedia

    en.wikipedia.org/wiki/Schramm_Inc.

    The company was founded in 1900 by Chris Schramm. It originally manufactured portable air compressors, before switching to rotary drilling rigs in the 1950s.Dick Schramm, who began working for the family business as a manufacturing engineer in 1961, worked his way up the ranks to become President of the company in 1985. [6]

  3. Helmerich & Payne - Wikipedia

    en.wikipedia.org/wiki/Helmerich_&_Payne

    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.

  4. Extended reach drilling - Wikipedia

    en.wikipedia.org/wiki/Extended_Reach_Drilling

    Extended Reach Drilling (ERD) is directional drilling of very long non-vertical wells. The aims of ERD are: a) to reach a larger area from one surface drilling location, and b) to keep a well in a reservoir for a longer distance in order to maximize its productivity and drainage capability.

  5. Nabors Industries - Wikipedia

    en.wikipedia.org/wiki/Nabors_Industries

    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.

  6. Schlumberger - Wikipedia

    en.wikipedia.org/wiki/Schlumberger

    Schlumberger NV (French: [ʃlumbɛʁʒe, ʃlœ̃b-]), doing business as SLB, also known as Schlumberger Limited, [2] is an American oilfield services company. [3] [4] As of 2022, it is both the world's largest offshore drilling company and the world's largest offshore drilling contractor by revenue.

  7. Patterson-UTI - Wikipedia

    en.wikipedia.org/wiki/Patterson-UTI

    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]

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Valaris Limited - Wikipedia

    en.wikipedia.org/wiki/Valaris_Limited

    In 1975, after the 1973 oil crisis, John R. Blocker bought Choya Energy, a six-rig contract drilling company based in Alice, Texas, and renamed the company Blocker Energy. [2] In 1980, the company became a public company via an initial public offering. [3] In 1981 and early 1982, the company borrowed heavily to expand its fleet to 54 rigs. [4]