X0303 4 2010-03-05 0001473061 PostRock Energy Corp PSTR 0001479193 Pinson David Kelly 210 PARK AVENUE SUITE 2750 OKLAHOMA CITY OK 73102 0 1 0 0 Vice President - Land Common Stock 2010-03-05 4 A 0 29999 0 A 29999 D Pursuant to the terms of the Merger Agreement dated July 2, 2009, as amended, between Quest Resource Corporation ("QRC"), Quest Midstream Partners, L.P. ("QMLP") and Quest Energy Partners, L.P. ("QELP") and the other parties thereto, all of the reporting person's 52,174 restricted share or bonus share awards of QRC common stock, 33,474 restricted unit awards of QMLP common units and 47,219 restricted unit awards of QELP common units were assumed by the issuer and converted into restricted or bonus share awards, as applicable, of the issuer at the effective time of the merger. /s/ David K. Pinson 2010-03-09