Duncan W. Riley

WesternGeco provides seismic contracting services. The firm offers reservoir imaging, monitoring and development services to oil & gas companies. The company was incorporated on September 19, 1978 and is headquartered in Gatwick, the United Kingdom.

Western Geophysical Co. provides cutting edge geophysical technology services to facilitate successful project execution.

Global Geophysical Services, Inc. engages in the provision of seismic data solutions to the global oil and gas industry. Its seismic data solutions primarily consists of seismic data acquisition, microseismic monitoring, processing, and interpretation services. The company also owns and markets a growing seismic data library and licenses this data to clients on a non-exclusive basis. The company was founded by Richard A. Degner and Craig A. Lindberg on June 18, 2003 and is headquartered in Missouri City, TX.

Part of Global Geophysical Services, Inc., Accrete Monitoring, Inc. provides oil and gas exploration image information services. The company is based in Missouri City, TX.

The Society of Exploration Geophysicists operates as an association of exploration geophysicists. The non-profit company is based in Tulsa, OK and has subsidiaries in the United States.

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.