PostRock in Woodford Shale Joint Venture

PostRock in Woodford Shale Joint Venture

OKLAHOMA CITY, June 12, 2014 (GLOBE NEWSWIRE) -- PostRock Energy Corporation
(Nasdaq:PSTR) ("PostRock" or the "Company") today announced that it has
entered into a joint venture ("JV") with Silver Creek Oil & Gas, LLC ("Silver
Creek") covering approximately 17,900 gross acres in Cleveland and
Pottawatomie Counties in central Oklahoma. The JV, which will facilitate
drilling of the initial Woodford horizontal tests in the area, includes a
portion of the leasehold PostRock acquired in late 2013. The first two
horizontal wells, both targeting the Woodford Shale, should be drilled and
completed by year-end.

The JV includes an acre for acre swap between PostRock and Silver Creek of
approximately 3,800 total net acres in 28 sections. The ownership split in the
development area will be 30% PostRock and 70% Silver Creek, with Silver Creek
serving as the operator. The trade broadens the Company's leasehold interest
to an additional 16 sections. The covered acreage may increase through
acquisition after poolings are completed. In connection with the JV, PostRock
is selling approximately 1,150 net acres to Silver Creek for $466,000 in cash.

Commenting, PostRock's CEO, Terry W. Carter, said: "We are very pleased to
enter into this agreement which will allow us to begin testing the Woodford on
the leasehold we have acquired at an accelerated pace, while limiting risk and
capital. It also aligns us with an experienced partner whose management and
technical team have drilled over 50 horizontal Woodford wells in southeast and
south central Oklahoma. If the wells drilled prove as successful as hoped, we
can apply the knowledge and experience gained to our remaining Central
Oklahoma acreage."

Forward-Looking Statements

Opinions, forecasts, projections or statements, other than statements of
historical fact, are forward-looking statements that involve risks and
uncertainties. Forward-looking statements in this announcement are made
pursuant to the safe harbor provisions of the Private Securities Litigation
Reform Act of 1995. Although the Company believes that the expectations
reflected in such forward-looking statements are reasonable, it can give no
assurance such expectations will prove correct. Actual results may differ
materially due to a variety of factors, some of which may not be foreseen.
These risks and other risks are detailed in the Company's filings with the
Securities and Exchange Commission, including risk factors listed in the
Annual Report on Form 10-K and other filings. The Company's SEC filings may be
found at www.pstr.com or www.sec.gov. By making these forward-looking
statements, the Company undertakes no obligation to update these statements
for revisions or changes.

CONTACT: Company Contact:
         Stephen L. DeGiusti
         EVP, General Counsel & Secretary
         sdegiusti@pstr.com
         (405) 702-7420

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