Gas fields are areas where natural gas is found underground, often in rock formations or associated with other fossil fuels like oil. These fields can vary in size and depth, and they are typically explored and developed by energy companies to extract the gas for use in heating, electricity generation, and as a fuel source. The extraction process involves drilling wells into the ground to access the gas. Once extracted, the gas is transported through pipelines to processing facilities, where it is purified and distributed. Gas fields play a crucial role in the global energy supply, contributing to the economy and energy needs of many countries.