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Shale gas was first extracted as a resource in Fredonia, New York, in 1821. in shallow, low- pressure fractures. Horizontal drilling began in the 1930s, and in 1947 a well was first fracked in the US Federal price controls on natural gas led to shortages in the 1970s. Faced with declining natural gas production, the federal government invested in many supply alternative including the Eastern Gas Shales Project, which lasted from 1976 to 1992, and the annual research budget of the Gas Research Institute, where the federal govemment FERC-approved began extensive research funding in 1982, disseminating the results to industry. The federal government also provided tax credits and rules benefiting the industry in the 1980 Energy Act. The Department of Energy later partnered with private gas companies to complete the horizontal well in shale in 1986. The federal multi-fracture first successful air-drilled government further incentivized drilling in shale via the Section 29 tax credit for Microseismic fmaging, a crucial input to both hydraulic unconventional gas from 1980-2000. fracturing in shale and offshore oil drilling, originated from coalbeds research at Sandia National Laboratories. The DOE program also applied two technologies that had been developed previously by industry, massive hydraulic fracturing and horizontal drilling, to shale gas formations. That led to microseismic imaging. Although the Eastern Gas Shales Project had increased gas production in the Appalachian and Michigan basins, shale gas was still widely seen as marginal to uneconomic without tax credits, and shale gas provided only 1.6% of US gas production in 2000, when the federal tax credits expired. George P. Mitchell is regarded as the father of the shale gas industry, by making it commercially viable in the Barnett Shale by getting costs down to S4 per 1 million British thermal units(1.100 megajoules). Mitchell Energy achieved the first economical shale fracture in 1998 using slick-water fracturing. Since then, natural gas from shale has been the fastest growing contributor to total primary energy in the United States. and has led many other countries to pursue shale deposits. According to the IEA, shale gas could increase recoverable natural gas resources by almost 50% technically text The Enulish teacher asked you to summarize this text, good luck