A Fossil fuel energy source, NatGas (Natural Gas) represents more than one fifth of the worlds energy consumption and is the fastest growing fossil fuel since the seventies.
Natural gas accounts for almost a quarter of United States energy consumption, and the NYMEX Division natural gas futures contract is widely used as a national benchmark price. The futures contract trades in units of 10,000 million British thermal units (mmBtu). The price is based on delivery at the Henry Hub in Louisiana, the nexus of 16 intra- and interstate natural gas pipeline systems that draw supplies from the region's prolific gas deposits. The pipelines serve markets throughout the U.S. East Coast, the Gulf Coast, the Midwest, and up to the Canadian border.
NatGas is a volatile market due to the supply and demand factors involved. There are always physical factors to consider, for instance If there is a pipeline breakdown to the Henry Hub station in Louisiana, gas prices go up.