Schlumberger

National Oilwell Varco, Inc. (NOV) is a leading provider of oilfield equipment, technologies, and expertise, serving oil and gas customers globally. With a focus on safety, efficiency, and reliability, NOV offers innovative solutions that address the unique challenges of the industry. Generated from their website's infomation

Established in 2001, Professional Directional Ltd. is a directional services company, serving the oil and gas drilling industry. Located in Conroe, Texas, it offers a wide range of services, including various categories of drilling, such as conventional directional, underbalanced, horizontal, multiwell pad and hot hole. In addition, it provides vertical control, performance motor drilling, well planning and field reporting services. Its list of clients includes J-W Operating Company, Samson, Hilcorp Energy Company, Hunt Petroleum, Elora Energy and many more.

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.