Transcontinental Gas Pipe Line Co. LLC is an interstate natural gas transmission company, which owns a natural gas pipeline system extending from Texas, Louisiana, Mississippi and the Gulf of Mexico through Alabama, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania and New Jersey to the New York City metropolitan area. Its customers include public utilities and municipalities that provide service to residential, commercial, industrial and electric generation end users. The company was founded on October 5, 1948 and is headquartered in Houston, TX.