PostRock Provides Operational Update

PostRock Provides Operational Update

OKLAHOMA CITY, May 28, 2014 (GLOBE NEWSWIRE) -- PostRock Energy Corporation
(Nasdaq:PSTR) ("PostRock") today provided an operations update. During the
last 75 days, the Company has completed twelve workovers in Central Oklahoma.
The average total cost per workover was approximately $275,000 and,
collectively, the workovers have a projected IRR in excess of 100% at current
oil and gas prices. This has resulted in the Company's current oil production
rising to an average of 700 net barrels per day, 18% over first quarter
levels. Within the next week, the Company expects to finish drilling its
initial Central Oklahoma horizontal well in Seminole County. The well targets
the Hunton formation and, if successful, should be on production in June. A
second horizontal well will be spudded immediately thereafter.

Additionally, the last compressor conversion on the Company's Cherokee Basin
gathering system was completed and started up two weeks ago. This concluded an
18-month project that, on a cumulative basis, will result in annual savings of
approximately $7.2 million at current gas prices.

PostRock also announced that the Company has engaged Robert W. Baird & Co. to
pursue the sale of its West Virginia oil and gas assets. The package includes
approximately 32,000 acres of leases and 407 gross wells. At December 31,
2013, the assets' proved reserves had a PV10 value, based upon a third-party
engineering analysis, of $17.3 million. In 2013, the properties produced a net
1.5 MMcf of gas and 41 barrels of oil per day.

Commenting, PostRock's CEO, Terry W. Carter, said: "We are delighted with our
continuing operational progress. Selling our Appalachia assets, along with the
benefits of exiting our position in CEP, will allow us to redeploy capital to
higher return projects, primarily focused on oil development in Central
Oklahoma."

PostRock Energy Corporation is engaged in the acquisition, exploration,
development, production and gathering of crude oil and natural gas. Its
primary production activity is focused in the Cherokee Basin, a 15-county
region in southeastern Kansas and northeastern Oklahoma, and in Central
Oklahoma. The Company owns and operates over 3,000 wells and maintains nearly
2,200 miles of gas gathering lines primarily in the Cherokee Basin.

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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