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This is a list of large or well-known interstate or international companies headquartered in the Tulsa Metropolitan Area. As of November 2012, Tulsa was home to one Fortune 1000 and two Fortune 500 companies: Dollar Thrifty Automotive Group, energy companies: ONEOK (#219), and The Williams Companies, Inc. (#342). [18]
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.
Unit Rig was founded in 1935 by Hugh S. Chancey and two partners, Jerry R. Underwood and William C. Guier, who formed a partnership to build a rotary drill rig for oil field work that was more mobile than existing designs. The group based the company in Tulsa, Oklahoma. By 1947, the partnership between the men was beginning to break down when ...
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(Jeenah Moon—Bloomberg/Getty Images) U.S. oil major Chevron said it will lay off up to 20% of its global workforce amid efforts to trim $2 billion to $3 billion in costs.
The largest layoffs came in February 2009, when the company let go of 50,000 people -- almost 20% of its workforce. Those cuts, however, weren't enough to keep the company solvent.
Many corporations producing, refining or transporting petroleum had at some point their headquarters or major facilities in Tulsa including Texaco, [16] BP-Amoco, [17] Cities Service Company, [18] Sinclair Oil and Gas Company, [19] Skelly Oil Company, [10] Warren Petroleum Company, [20] the Williams Companies, [21] and Kaiser-Francis Oil ...
Oklahoma Natural Gas Company headquarters in Tulsa, Oklahoma built in 1928 OneOK headquarters in Tulsa, Oklahoma on 20 March 2007. Oklahoma Natural Gas Company was founded on October 12, 1906 [3] by businessmen Dennis T. Flynn and Charles B. Ames. [4] During the spring and fall of 1907, the company built a gas pipeline from Osage County to Sapulpa and Oklahoma City. [4]