oil reserve discovered in the United States, with an estimated 1 Goilbbl of oil. The discovery led to the Indiana Gas Boom.

Almost all of the natural gas was removed from the field by 1910, but only about 10% of the oil had been removed at that point. The lack of pressure caused by the removal of the gas led to a complete stoppage of oil production, even though an estimated 900 Moilbbl of oil remained in the field. Beginning in the late 20th century, oil production resumed at a slow pace after