 DALLAS--BUSINESS WIRE--HollyFrontier Corporation NYSE:HFC HollyFrontier or the Company today reported fourth quarter net loss attributable to HollyFrontier stockholders of 117.7 million or 0.73 per diluted share for the quarter ended December 31, 2020, compared to net income of 60.6 million or 0.37 per diluted share for the quarter ended December 31, 2019. The fourth quarter results reflect special items that collectively increased net loss by a total of 0.9 million. On a pre 