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Geophysical Service
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==History== On December 6, 1941, the company was purchased by [[Eugene McDermott]], [[Cecil Howard Green]], [[J. Erik Jonsson]], and H.B. Peacock. During [[World War II]], the company produced submarine detection devices. In 1951, the company was renamed [[Texas Instruments]] (TI) with GSI as a division.<ref>{{Cite web |title=Frequently Asked Questions |url=https://investor.ti.com/resources/frequently-asked-questions |access-date=22 February 2024 |website=Texas Instruments}}</ref> GSI was later sold by TI, repurchased, and finally sold again to [[Halliburton]] in 1988. Halliburton also acquired GeoSource, a competing geophysical contractor (formerly Petty-Ray Geophysical), and attempted to merge the two companies. However, the rivalry between the two entities endured and the merged entity known as Halliburton Geophysical Services (HGS) was not profitable. After several years of losses, in 1994, Halliburton sold HGS to [[Western Atlas]] (formerly [[Western Geophysical]] until its merger with [[Dresser Atlas]] in 1987). Western Atlas was bought by [[Baker Hughes]] in 1998 and then merged into [[WesternGeco]] in 2000 through a joint venture with [[Schlumberger]] in which Schlumberger held the majority share (70%). On July 3, 1981, [[MS Arctic Explorer]], chartered to GSI to conduct seismic surveys off the Labrador coast for British Petroleum, sank off St. Anthony, Newfoundland, in the Strait of Belle Isle, resulting in the loss of 13 lives.<ref>{{Cite web |title=The Arctic Explorer 'just rolled over,' killing 13 men,... - UPI Archives |url=https://www.upi.com/Archives/1982/04/30/The-Arctic-Explorer-just-rolled-over-killing-13-men/6668388987200/ |access-date=2024-02-22 |website=UPI |language=en}}</ref>
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