 RAPID CITY, S.D., Nov. 05, 2020 GLOBE NEWSWIRE -- Black Hills Corp. NYSE: BKH, conducting utility operations as Black Hills Energy, today announced clean energy goals to reduce greenhouse gas GHG emissions intensity for its electric operations of 40 by 2030 and 70 by 2040 and achieve GHG reductions of 50 by 2035 for its natural gas utility operations. 