History of the oil shale industry in the United States Act of 1985 which among other things abolished the United States' Synthetic Liquid Fuels Program. Union finally bowed to continued low oil prices and closed the project in 1991, rather than complete the US$2 billion project. Over several decades, some of the world's largest oil companies (Amoco, Arco, Chevron, Exxon, Gulf, Phillips, Shell, Sohio, Sunoco, Texaco, Union Oil) had spent billions of dollars to start an oil shale industry in the Green River Formation, the world's largest oil shale resource. But in the end, cheap petroleum prices drove oil shale out of business. Even after the oil shale bust, some
History of the oil shale industry in the United States supply, and proximity to markets. At the beginning of 1923, a retort was reported to be making test runs on local Sunbury Shale in Pike County, Ohio, and another southern Ohio oil shale retort was being planned. The high price of petroleum encouraged intensified exploration in the US and elsewhere, and eventually resulted in the discovery of large new petroleum deposits. American oil production surged in the early 1920s, particularly in north Texas and the Los Angeles Basin in California, driving down both imports and the price of oil. A barrel of oil in the Midcontinent region lost almost two-thirds