R. Grimes

Expro International Group Ltd. explores and develops oil and gas properties. It offers well testing and commissioning, production systems, wireline intervention, connectors and measurements, and deepwater intervention. The company founded on April 12, 1973 and is headquartered in Reading, the United Kingdom.

PowerWell Services, Inc. provides well testing tools, data acquisition, and analysis systems for the oil and gas industries. The firm's power well testing and chokes divisions offers clean up, flow back, in-line testing applications, utilizing chokes for severe drilling, stimulation, well control, under-balanced drilling, and production operations. The company was founded in 2004 and is headquartered in Houston, TX.

Hamilton Engineering, Inc. by combining the technical and project management skills of its consultants with its experienced staff and proprietary assignment matching database, it efficiently and effectively provide world-class engineering, consulting, project management, and placement solutions to its upstream clients. The company specializes in providing consultants for the planning and supervision of petroleum related drilling, completion, and well workovers in nearly every oil producing state in the United States and over twenty foreign countries.

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

New Tech Global Ventures LLC provides engineering consulting and site supervisory services to major and independent oil and gas producers. Its services include verification, project management, cost analysis, drilling and completion programs, work over and recompletions, re-entry and sidetracks, and operations training. The company was founded by Larry A. Cress in 1998 and is headquartered in Houston, TX.

Hamilton Group provides consulting services to oil and gas exploration and production companies. The firm offers drilling, completion, production, engineering, geosciences, well site supervision, fluids management, and logistical support services. The company was founded in 1976 and is headquartered in Dallas, TX.

Sierra Hamilton LLC provides outsourced engineering, technology solutions, and on-site supervision services to the oil and gas industry. It offers drilling and completion, well control, and reservoir and production services. The firm operates through its locations in Denver, Houston, Lafayette, Midland, Oklahoma City, Pune, and Rio de Janeiro. The company was founded in December 2013 and is headquartered in Houston, TX.