Hallador Energy Company Announces Second Quarter 2021 Earnings Release and Investor Call

TERRE HAUTE, Ind., July 28, 2021 (GLOBE NEWSWIRE) -- (Nasdaq: HNRG) Hallador Energy Company today announced that the Company plans to release its second quarter 2021 financial results on Form 10-Q after the markets close on Monday, August 9, 2021.