Exhibit 10.2

AMENDMENT NO. 3 TO

FIRST AMENDED AND RESTATED

REGISTRATION RIGHTS AGREEMENT

This Amendment No. 3, dated December 20, 2012 (this “Amendment”), to the First
Amended and Restated Registration Rights Agreement dated as of August 8, 2011
(as amended from time to time, the “Agreement”), by and among PostRock Energy
Corporation, a Delaware corporation (together with any successor entity thereto,
the “Corporation”), White Deer Energy L.P., a Cayman Islands exempted limited
partnership (“White Deer”), White Deer Energy TE L.P., a Cayman Islands exempted
limited partnership (“White Deer TE”) and White Deer Energy FI L.P. a Cayman
Islands exempted limited partnership (together with White Deer and White Deer
TE, the “White Deer Stockholders”) and Constellation Energy Commodities Group,
Inc., a Delaware corporation, is made by and among the Corporation and the White
Deer Stockholders in accordance with Section 9(b) of the Agreement.

WHEREAS, pursuant to the Securities Purchase Agreement, dated as of the date
hereof, by and among the Corporation and the White Deer Stockholders (the
“December 2012 Purchase Agreement”) the Corporation issued and sold to the White
Deer Stockholders and the White Deer Stockholders purchased from the
Corporation 4,577,464 shares of Common Stock, 650 shares of Series A Shares and
White Deer Warrants to purchase 4,577,464 shares of Common Stock; and

WHEREAS, to induce the White Deer Stockholders to enter into the December 2012
Purchase Agreement and to consummate the transactions contemplated therein, the
Corporation agreed to provide the registration and other rights set forth in
this Amendment for the benefit of the White Deer Stockholders.

NOW, THEREFORE, in consideration of the mutual terms, conditions and agreements
contained herein, and of other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, and intending to be legally bound
hereby, the parties hereto hereby agree as follows:

 

1. Defined Terms. Except as otherwise defined herein, capitalized terms used
herein will have the definitions ascribed to them in the Agreement.

 

2. Definition Section. Section 1 of the Agreement is hereby amended to add the
following definition: “December 2012 Purchase Agreement: The Securities Purchase
Agreement by and among PostRock Energy Corporation, White Deer Energy L.P.,
White Deer Energy TE L.P. and White Deer Energy FI L.P., dated December 17,
2012.”.

 

3. Registrable Securities Definition. The definition of “Registrable Securities”
in Section 1 of the Agreement is hereby amended to add the following after the
first word of such definition: “Series A Shares issued to the White Deer
Stockholders pursuant to the December 2012 Purchase Agreement, shares of Common
Stock issued to the White Deer Stockholders pursuant to the December 2012
Purchase Agreement, shares of Common Stock that may be issued to the White Deer
Stockholders upon the exercise of the Warrants issued to such White Deer
Stockholders pursuant to the December 2012 Purchase Agreement, the”.

 

4. Miscellaneous. Except as expressly amended hereby, the Agreement shall remain
unchanged, and the Agreement, as so amended, shall continue in full force and
effect in accordance with its terms. For the avoidance of doubt, the provisions
of Section 9 of the Agreement shall apply to this Amendment mutatis mutandis.
This Amendment may be executed by the parties hereto in separate counterparts,

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each of which when so executed shall be deemed to be an original and all of
which taken together shall constitute one and the same agreement. Executed
signature pages to this Amendment may be delivered by PDF (Portable Document
Format) or facsimile and such PDFs or facsimiles will be deemed as sufficient as
if actual signature pages had been delivered.

* * * * *

 

2

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IN WITNESS WHEREOF, the parties have executed this Amendment as of the date
first above written.

 

THE COMPANY: POSTROCK ENERGY CORPORATION By:   /s/ Terry W. Carter Name:   Terry
W. Carter Title:   President and Chief Executive Officer

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WHITE DEER STOCKHOLDERS: WHITE DEER ENERGY L.P. By:   Edelman & Guill Energy
L.P., its general partner By:   Edelman & Guill Energy Ltd., its general partner
By:   /s/ Thomas J. Edelman   Name: Thomas J. Edelman   Title: Director Address
for Notice:  

White Deer Energy L.P.

667 Madison Ave, 4th Floor

New York, New York 10065

Attention: Thomas J. Edelman

Facsimile: (212) 888-6877

  and  

White Deer Energy L.P.

700 Louisiana, Suite 4770

Houston, Texas 77002

Attention: James E. Saxton

Facsimile: (713) 581-6901

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WHITE DEER ENERGY TE L.P. By:   Edelman & Guill Energy L.P., its general partner
By:   Edelman & Guill Energy Ltd., its general partner By:   /s/ Thomas J.
Edelman   Name: Thomas J. Edelman   Title: Director Address for Notice:  

c/o White Deer Energy L.P.

667 Madison Ave, 4th Floor

New York, New York 10065

Attention: Thomas J. Edelman

Facsimile: (212) 888-6877

  and  

c/o White Deer Energy L.P.

700 Louisiana, Suite 4770

Houston, Texas 77002

Attention: James E. Saxton

Facsimile: (713) 581-6901

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WHITE DEER ENERGY FI L.P. By:   Edelman & Guill Energy L.P., its general partner
By:   Edelman & Guill Energy Ltd., its general partner By:   /s/ Thomas J.
Edelman   Name: Thomas J. Edelman   Title: Director Address for Notice:  

c/o White Deer Energy L.P.

667 Madison Ave, 4th Floor

New York, New York 10065

Attention: Thomas J. Edelman

Facsimile: (212) 888-6877

  and  

c/o White Deer Energy L.P.

700 Louisiana, Suite 4770

Houston, Texas 77002

Attention: James E. Saxton

Facsimile: (713) 581-6901