Schlumberger

Weatherford International is one of the world s largest diversified upstream oilfield service companies. With a corporate history that began in 1941, Weatherford has nearly $4.6 billion in annual revenues, approximately 24,500 employees in nearly 100 countries and more than 85 manufacturing facilities supporting 730 service bases. In 2005, Standard & Poor s announced the addition of the company to its flagship S&P Index. Following the completion of its 2005 acquisition of Precision Drilling Corporation's energy services and international drilling divisions, Weatherford was reorganized into four distinct businesses that include completion and production systems; evaluation, drilling and intervention; pipeline and specialty services; and international contract drilling. The company provides a variety of services to its customers that include drilling, evaluation, completion, production, intervention and industrial services. Weatherford International has locations throughout the United States, such as the office in Houston.

Halliburton in Spring, TX offers a comprehensive range of subsurface and surface solutions for the oil and gas industry, including formation evaluation, reservoir testing, data analysis and operations, subsurface intelligence, software, well construction, drilling and completion fluids, completions, wellbore service tools, completion fluids, stimulation, and well intervention and diagnostics. The company's innovative technologies and services cover every aspect of the oil and gas production process, from exploration and drilling to well completions, production, and artificial lift systems, providing clients with integrated solutions for efficient and effective operations in the energy sector. Generated from the website

Baker Oil Tools is one of the leaders throughout the world in completion, workover and fishing solutions that help exploration and production companies maximize value from their hydrocarbon-bearing assets. Since its inception, the Baker name has been synonymous in downhole and surface technology. Its workover solutions allow zonal isolations, water shutoffs and well cleanouts to be performed simply. Baker s engineers apply practical field experience to cutting, fishing and milling capabilities to help provide advanced and comprehensive tools. The company is a branch division of Baker Hughes Incorporated. Baker Oil Tools is headquartered in Houston and employs nearly 1,000 people.