David Graeme Fenneck Sefton

WellPoint Systems, Inc. provides enterprise applications and related services for managing business in the global energy sector. The company provides financial, energy marketing and trading solutions to the oil and gas industry. WellPoint Systems was founded in 1997 and is headquartered in Calgary, Canada.

Linton Capital LLP (Linton Capital) is a private equity firm founded in 2004. The firm is headquartered in London.

Crest Energy Services Ltd. provides onsite nitrogen generation, pumping, and purging services to the oil and gas industry. It offers nitrogen membrane, nitrogen membrane technical data, nitrogen purity testing, XRV twin air technical data, joy booster technical data, and membrane solutions. The company was founded in 2009 and is headquartered in Dubai, the United Arab Emirates.

SR2020, Inc. provides reservoir management services. It develops and delivers borehole seismic imaging technologies and methods for clients in oil and gas exploration and production environments. The firm offers ProVSP, a solution for mapping small-scale reservoir details and time-lapse monitoring of fluid distribution. The company was founded in 1998 and is headquartered in Brea, CA.

Anglo African Oil & Gas Plc engages in the development of oil and gas properties. It has interest in the Tilapia Field located in the Republic of Congo. The company was founded on January 12, 2001 and is headquartered in London, the United Kingdom.