Missouri Beginning this month the electrical energy company Ameren Missouri has confirmed they will be offering decreases in their natural gas rates. Customers of this service will have a two cent drop in there bill. The decrease on customer bills is because of change in the company’s adjustment of natural gas. The change will affect customers in many areas around the state. Cape Girardeau is one of the city’s that will be affected Over half of a consumers bill concerns natural gas. Ameren serves over 130,000 Missourians across the state. s natural gas. Ameren serves over 130,000 Missourians across the state.