Jerry D. Dresner

Part of Northrop Grumman Corp., Western Atlas International, Inc. is a defense and marine systems company. The company is based in Houston, TX. Western Atlas International was acquired by Litton Industries, Inc. from Dresser Industries, Inc. on January 31, 1994 for $558 million.

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

Baker Hughes Holdings LLC supplies oilfield services, products, technology, and systems to the worldwide oil and natural gas industry. It provides products and services for other businesses including downstream chemicals, and process and pipeline services. The company is headquartered in Houston, TX.

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.

Dresser Industries, Inc. was a supplier of products and services to industries involved in oil and gas production and transmission, petroleum refining and marketing and power generation. The petroleum products and services segment used to provide services and project management for oil and gas exploration, drilling, completion, production and transmission activities. In 1998, the company merged with its main rival, Halliburton, and is now known as Halliburton Co. On 10th April, 2001 the Dresser division (excluding the former Kellogg division) entered an agreement to separate itself once again from Halliburton by management purchasing its equity, the new company to be called Dresser, Inc. The company is headquartered in Dallas, TX.

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.