If there's one person who knows the oilfield business inside and out, it's Marvin Gearhart, co-founder of Gearhart-Owen Industries (1955) and founder of Rock Bit International (1989) and Gear-hart Companies (2005). From his days making $250 a month as a field engineer to selling a company he started in a garage for $500 million, Gearhart has been reinventing the oil field for over six decades.
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机译：如果有人能全面了解油田业务，那就是Marvin Gearhart，他是Gearhart-Owen Industries（1955）和Rock Bit International（1989）和Gear-hart Companies（2005）的联合创始人。从他每月以250美元的价格成为一名现场工程师的日子，到以5亿美元的价格出售他在一家车库创办的公司的那一天，Gearhart一直在重塑油田六十年了。
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