Natural gas fields are areas where natural gas is found trapped beneath the Earth's surface, often alongside oil deposits. These fields are formed from the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years. The gas is typically extracted through drilling and is used for various purposes, including heating, electricity generation, and as a fuel for vehicles. The extraction process involves locating gas reservoirs, which can be found in different geological formations, such as shale, sandstone, or limestone. Once extracted, the natural gas is processed and transported through pipelines to reach consumers. Natural gas is considered a cleaner alternative to other fossil fuels, producing fewer emissions when burned.