CHICAGO--(BUSINESS WIRE)--The Board of Directors of Duff & Phelps Utility and Infrastructure Fund Inc. (NYSE: DPG), a closed-end fund advised by Duff & Phelps Investment Management Co. (the “Adviser”), announced today the renewal of its open market share repurchase program. Under the Fund’s current repurchase program the Fund is authorized to purchase, on a discretionary basis through June 30, 2025, up to 5% of its outstanding common shares on the open market at a discount to net asset