Although Memphis Light, Gas and Water has been in existence since 1939, its parent companies started more than 100 years ago. MLGW and the services we provide have come a long way since our beginnings not long after the Civil War. The city's first utility company was the Memphis Gas Light Company, formed in 1852. It served 10,000 people and covered just three-square-miles. The city's water supply came from cisterns and the Wolf River.