From Business: Tulsa Rig Iron provides engineering solutions for horizontal drilling contractors in the trenchless industries. The company engineers and manufactures directional drilling rigs…

From Business: Paragon Industries manufactures steel pipe used for oil drilling and pipeline applications and structural piling used in the building industry. The company also provides…

From Business: Schlumberger Limited is one of the leading oil field service providers in the world. It has various research and engineering facilities that work to develop a variety of…

From Business: With one of the locations based in Sapulpa, Okla., HASCO Manufacturing has been catering the needs of its clients for more than 65 years. The firm is a manufacturing company…

From Business: Unit Corporation is an energy company engaged in the exploration for and production of oil and natural gas, the acquisition of producing oil and natural gas properties, the…

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From Business: Kaiser Francis Oil Company developes oil and gas field properties and establishments that recover liquid hydrocarbons from oil and gas field gases.

From Business: Helmerich & Payne is the holding company for Helmerich & Payne International Drilling, a contract drilling company that owns a fleet of more than 120 land-based, offshore and…

From Business: ONEOK Energy Services Company offers physical products and risk management services through a network of contracted gas supply, transportation and storage capacity. Its…