DUBUQUE, Iowa, Feb. 01, 2024 (GLOBE NEWSWIRE) -- Black Hills Corp. (NYSE:BKH) today announced that its nonregulated subsidiary, Black Hills Energy Renewable Resources, completed the purchase of a renewable natural gas production facility in Dubuque, Iowa. The acquisition of the production facility at the Dubuque Metropolitan Area Solid Waste Agency site includes onsite infrastructure and the rights to RNG production at the landfill under a long-term contract. The facility currently injects RNG into the natu ...