Ameren Corp. on May 26 registered approximately $331 million of common shares associated with its DRPlus Dividend Reinvestment and Stock Plan.

The plan helps stockholders to purchase common shares and to reinvest the cash dividends in additional common shares. The registration statement relates to 5,909,523 common shares offered under the plan.

The sale proceeds will be used to fund the company's ongoing construction projects, to redeem, repurchase or repay outstanding debts, to fund future acquisitions and for other general corporate purposes.