Western Geophysical

Western Geophysical

Company type	Private (until 1960), then subsidiary
Industry	Oil exploration, Geophysical services
Founded	January 1, 1933 (1933-01-01) in California, United States
Founder	Henry Salvatori
Defunct	2000 (2000)
Fate	Integrated into WesternGeco after acquisition by Baker Hughes
Successor	WesternGeco
Headquarters	Kern County, California , United States
Area served	Global
Key people	Dean Walling (operating President until 1960)
Products	Reflection seismology services for petroleum prospecting

Western Geophysical was a global oil exploration firm established in California in 1933 by Henry Salvatori, with the aim of utilizing reflection seismology techniques for petroleum prospecting.

The company experienced growth and was eventually sold by Salvatori to Litton Industries in 1960. In 1987, Litton partnered with Dresser Industries to create a joint venture merging Western with Dresser Atlas, forming Western Atlas, which went public in 1994. Subsequently, Western acquired Halliburton Geophysical Services, which originated from entities including Geophysical Service Incorporated and Geosource. In 1998, Baker Hughes purchased Western Atlas. By 2000, Western Geophysical was integrated into the Baker Hughes–Schlumberger collaboration known as WesternGeco, ending its independent operations. Schlumberger completed full ownership of WesternGeco in 2006.

The company operated a fleet of seismic survey vessels, frequently named after natural landmarks, such as:

• Western Anchorage (200 feet, operating along the West Coast and Alaska)
• Western Cape (small vessel, Gulf of Mexico)
• Western Cay (small vessel, Gulf of Mexico)
• Western Glacier (200 feet, West Coast and Alaska)

The Panama-registered R/V Western Viking conducted offshore seismic surveys on fields including Hibernia and Sable Island. The Western Endeavour was active from Singapore during the mid-1970s, covering regions across the Indian Ocean and Pacific. Throughout the 1970s, seismic exploration was also carried out in the Persian Gulf, supported by a base located in Manama, Bahrain.

Later additions to the fleet, such as the Western Trident and Western Neptune, were incorporated into WesternGeco following the merger. Internally referred to as "Westerns," the company was known for its vibrant corporate culture.

Dean Walling held the position of operating President until the company's acquisition by Litton Industries in 1960.

See also

• List of oilfield service companies