City Utilities of Springfield (CU) is a progressive, community-owned utility serving 320 square miles in southwest Missouri since 1945 with electricity, natural gas, water, broadband, and public transportation services.  City Utilities is overseen by a governing board composed of local citizens.  

Over 111,000 CU customers enjoy electricity prices among the lowest in the United States, the convenience of one bill for all utilities, and dependable hometown services delivered with a personal touch.

CenterPoint Energy is composed of an electric transmission and distribution utility serving the Houston metropolitan area, local natural gas distribution businesses in six states, a competitive natural gas sales and service business serving customers in the eastern half of the U.S., interstate pipeline operations with two natural gas pipelines in the mid-continent region, and a field services business with natural gas gathering operations, also in the mid-continent region.

The Ameren Illinois Utilities have been providing safe, reliable energy delivery service for more than a century. The Ameren Illinois Utilities deliver energy to 1.2 million electric and more than 840,000 natural gas customers in about 1,000 communities, while helping customers spend less by using less energy and communities grow through economic development initiatives.