John McGrath

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.

Lloyds Development Capital (Holdings) Ltd. (LDC) is a private equity firm founded in 1981. The firm is headquartered in London, United Kingdom and is wholly owned by LBG Equity Investments Ltd.

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.

Part of Kaupþing ehf, Singer & Friedlander Insurance Finance Ltd. provides e-commerce solutions to insurance brokers. The company is based in Dorking, UK.

Nimbus Partners Ltd. develops and implements business enterprise software. The company was founded in 1997 and is headquartered in Rowlands Castle, the United Kingdom.

3i Private Equity is a private equity firm, founded in 1945. The firm is headquartered in London, United Kingdom with additional offices around the world.

Resman AS engages in the provision of wireless reservoir surveillance. It offers continuous reservoir monitoring, inter-well water and gas diagnostics, inter-well saturation, and near-well oil saturation services. The company was founded by Fridtjof Nyhavn and Anne Dalager Dyrli in 2005 and is headquartered in Trondheim, Norway.

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.

Norbit Aptomar AS provides marine surveillance and oil spill detection software solutions. It focuses on protecting the safety and integrity of people, the environment and assets by managing, 24/7 oil spill detection and combating, surveillance and security as well as search and rescue in close cooperation with Industry. The firm offers marine operations, installation and production units and onshore operations. The company was founded by Jonas Aamodt Moræus, Håkon Skjelten and Lars André Solberg in 2005 and is headquartered in Trondheim, Norway.

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.

Acics Ltd. operates as holding company with interest in providing investment and financial services. The company was founded in 2006 and is located in Huddersfield, GB

Aberdeen Sports Village Ltd. is a premium sports facility in Aberdeen, UK that offers world-class gym and swim facilities, 100+ group exercise classes each week, and more. The company is ultimately controlled by the City of Aberdeen (United Kingdom). The British company also provides corporate memberships to help companies create a happier and healthier team.

London Stock Exchange Plc, operates as a stock exchange. It offers capital market, trading, information, derivatives, studio, regulatory, enhanced, connectivity, telephone network, reference and historical data, historic price, corporate action, trade data, valuation data, broker ranking, matching and reconciliation. The company was founded in 1571 and is headquartered in London, the United Kingdom.

McCall, Aitken, Mckenzie & Co. Ltd. provides corporate advisory and related services. The private company is based in Glasgow, UK.

Part of NOV, Inc., Petro Tools Holding AS develops and markets tools and equipment for use in oil wells. The company is based in Stavanger, Norway.

Darcy Technologies Ltd. engages in the design and manufacturer of downhole sand control technology. The company was founded on February 6, 2010 and is headquartered in London, the United Kingdom.

Lambert Contracts Holdings Ltd. provides investment services.

Founded in 2013, Ramco Acquisition Ltd. is a subsidiary of Lloyds Banking Group Plc. The company is based in Aberdeen, UK. The British company engages in support activities for petroleum and natural gas extraction.

Osprey Aviation Services (UK) Ltd. is a technical consultancy that provides operational and engineering support to commercial and military aviation projects. The company is based in Aberdeen, UK. and has subsidiaries in United Kingdom and Ireland. The British company was founded in 2014.

Guardian Holdings Ltd. is a UK-based holding British company that was founded in 2008. The private company's subsidiaries design and manufacture equipment primarily for the oil and gas industry.