The Indiana gas boom was a period of active drilling and production of natural gas in the Trenton Gas Field, in the US state of Indiana and the adjacent northwest part of Ohio. The boom began in the early 1880s and lasted into the early 20th century.
When the Indiana natural gas belt was discovered, the citizens were unaware of what they had found. Nearly a decade passed without action to recover the resource. Once its significance was realized, further exploration showed the Indiana gas belt was the largest deposit of natural gas discovered until then. In addition to the massive quantity of natural gas, in the 1890s developers discovered that the field also contained the first giant oil reserve found in the US, with an estimated one billion barrels of oil. The resource was rapidly tapped for use. Because the gas was being wasted in use, the Indiana General Assembly attempted to regulate its use. In a series of cases, the Indiana Supreme Court upheld the constitutionality of the law.
The poor understanding of oil and gas wells at the time led to the loss of an estimated 90% of the natural gas by venting into the atmosphere or by widespread misuse. By 1902, yield from the fields began to decline, leading to a switch to alternative forms of energy. With most of the gas removed from the field, there was no longer enough pressure to pump the oil out of the ground. An estimated 900 million barrels (140,000,000 m3) of oil remain in the field.