May 13 (Reuters) - PostRock Energy Corp PSTR.O :
* Reports first quarter results
* Q1 revenue fell 43 percent to $12.5 million
* Qtrly production, using a realized 16:1 gas-to-oil economic equivalency,
averaged 47.4 mmcfe per day, up 3%
* Says company engaged evercore group l.l.c. as an advisor to evaluate
strategic alternatives
* Says oil production for the first quarter averaged 634 net barrels per day,
an increase of 78%
* Qtrly loss per share $2.46
* Source text for Eikon ID:nGNXVDORHa
* Further company coverage PSTR.O
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