Patrick Keenan

Part of Halliburton Co., NUMAR Corp. is a company that makes and markets tools used to evaluate subsurface rock formations. The company is based in Malvern, PA. NUMAR was acquired by Halliburton Co. on September 30, 1997 for $430.02 million. The CEO of the company is Melvin Miller.

Part of Core Laboratories, Inc., Coherence Technology Co., Inc. provides specialized seismic data processing and interpretation services. The company is based in Houston, TX. Coherence Technology Co. was acquired by Core Laboratories NV on July 02, 1999.

GeoMechanics International, Inc. provides support services to oil and gas industries. The company provides software, consulting and training services to the oil & gas, geothermal and geotechnical industries. Its portfolio includes reservoir appraisal, advice about field development, refining and marketing as well as integrated technical and management advice. GeoMechanics International was founded by Mark D. Zoback & Daniel Moos in 1996 and is headquartered in Houston, TX.

Guardian Global Technology Group Ltd. manufactures and supplies equipment to oil and gas industries. The firm’s products and services include ballistics delivery systems, production logging systems and rental equipment. The company was founded by Suzannah Bourne in 2003 and is headquartered in Pyle, the United Kingdom.

Guardian Global Technologies Ltd. engages in the design and manufacture of oil and gas well down hole logging equipment for oil companies. Its products include production logging tools, protection and safety equipment, deployment tools, special engineered products, perforating equipment and accessories, cement bond tools, surface equipment, logging adapter heads, and high temperature products, as well as gun brake systems, powered swivel joints, and voltage sensing switches. The company was founded in 2003 and is headquartered in Pyle, the United Kingdom.

DHI Services, Inc. provides well-site formation evaluation services for the oil, gas, and geothermal exploration companies. Its services include Mudlogging, GeoSteering, Pore Pressure Prediction, and Early Kick Detection services. The company was founded by Joseph S. Pollard in 2006 and is headquartered in Pinehurst, TX.

Fram Exploration AS engages in the licensing of oil field exploration and development services. It also invests in Norwegian and foreign companies. The company was founded on November 19, 2007 and is headquartered in Trondheim, Norway.