** Hallador Energy's HNRG.O shares down 8% before the bell to $18.98 after $50 mln follow-on prices
** Terre Haute, Indiana-based electricity and coal producer sells ~2.8 mln shares at $18
** Offering price is 12.7% discount to stock's last close
** Co intends to use net offering proceeds for general corporate purposes, including funding certain initial financial commitments to reserve equipment necessary to support its additional natural gas generating facility
** Board members Zarrell Gray and Charles R. Wesley, IV indicated interest to buy up to $1.25 mln each of offering shares, per the prospectus
** Texas Capital Securities sole bookrunner
** Co has ~43.8 mln shares outstanding for roughly $900 mln market cap
** Through Tues close, shares gained roughly 75% over the past year
** 3 analysts rate the stock "buy", 1 has "hold"; median PT $27, per LSEG data
(Lance Tupper is a Reuters market analyst. The views expressed are his own)
((lance.tupper@tr.com 1-646-279-6380))