Abstract
The Lost Soldier district in south-central Wyoming contains 3 oil fields, 4 gas fields, 1 prospective gas field, and 3 anticlines with structural closures that have been proved barren of gas or oil in the formations which produce gas in the gas fields. The gas fields, Wertz, Mahoney, West Ferris, and Middle Ferris, have produced 114 billion cubic feet of gas. In the Wertz gas field only does the gas carry natural-gas gasoline in an appreciable quantity. It is estimated that 2-4 million gallons of natural-gas gasoline have been produced in this field. Commercial amounts of oil are not found in the zones containing gas. The Mahoney gas field has one small oil well in the deeper Tensleep sand. Bunker Hill anticline is the only prospective gas or oil field, and it is being drilled. There are no prospective, untested zones in the gas fields. It is estimated that the proved gas fields of the district still contain 47 billion cubic feet of gas at a reservoir pressure of 200 pounds per square inch and that the recoverable natural gas in the Wertz gas field contains 10 million gallons of natural-gas gasoline.
Published Version
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