what is igs gas
IGS Energy. IGS Energy, also known as Interstate Gas Supply, Inc., is an independent retail natural gas and electric supplier based in Dublin, Ohio, United States. It serves more than 1,000,000 residential, commercial and industrial customers in the states of Ohio, Michigan, Kentucky, New York, Pennsylvania, Indiana, Virginia, Maryland, Texas, California and Illinois. The company was founded in 1989, and today employs more than 400 people at its headquarters in Dublin, Ohio.