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Drilling for oil involves the use of bulky and specialized equipment. The equipment needs an enormous and continuous power supply. That makes power supplies an essential part of the oil and gas industry. Heavy instruments include equipment such as hoisting systems, cranes, turntables, pumps, and large engines
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A standard land rig with 1,500 to 1,700 horsepower will cost between $14 million and $25 million to own. An offshore oil rig cost is much higher, starting at $20 million and going as high as $1 billion
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