The Public Service Enterprise Group (PSEG) is a publicly traded diversified energy company headquartered in Newark, New Jersey and was established in 1985. The company’s largest subsidiary is Public Service Electric and Gas Company (PSE&G). The Public Service Electric and Gas Company is a regulated gas and electric utility company serving the state of New Jersey and it is New Jersey’s oldest and largest investor-owned utility company; the Public Service Electric and Gas Company was established in 1928 and was originally a subsidiary of the New-Jersey-based Public Service Corporation.