BLACK HILLS CORP. DL 1 revenue for the last year amounted to 2.11 B EUR, the most of which — 1.34 B EUR — came from its highest performing source at the moment, Gas Utilities, the year earlier bringing 1.55 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought BLACK HILLS CORP. DL 1 2.11 B EUR, and the year before that — 2.38 B EUR.