Document:

Contribution Agreement

 Exhibit 10.2 
 Execution Version 
 * THE COMPANY HAS REQUESTED AN ORDER FROM THE
SECURITIES AND EXCHANGE COMMISSION (THE “COMMISSION”) PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, GRANTING CONFIDENTIAL TREATMENT TO SELECTED PORTIONS. ACCORDINGLY, THE CONFIDENTIAL PORTIONS HAVE BEEN OMITTED
FROM THIS EXHIBIT, AND HAVE BEEN FILED SEPARATELY WITH THE COMMISSION. OMITTED PORTIONS ARE INDICATED BY “[REDACTED]”.  
 CONTRIBUTION AGREEMENT 
 by and among 
 KEYSTONE MIDSTREAM SERVICES, LLC, 
 a Delaware limited liability company 
 R.E. GAS DEVELOPMENT, LLC 

 a Delaware limited liability company, 
 and 
 STONEHENGE ENERGY RESOURCES, L.P., 
 a Delaware limited partnership 
 December 21, 2009 

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page
	 ARTICLE 1
	  	     SALE OF PLANT INTEREST
	  	1
			
	 1.1
	  	 Sale of Plant Interest
	  	1
			
	 1.2
	  	 Plant Purchase Price
	  	1
			
	 ARTICLE 2
	  	     CONTRIBUTIONS
	  	2
			
	 2.1
	  	 Contribution of Rex Contributed Assets
	  	2
			
	 2.2
	  	 Contribution of Stonehenge Contributed Assets
	  	2
			
	 2.3
	  	 Assumption of Liabilities
	  	2
			
	 2.4
	  	 No Assumption of Retained Liabilities
	  	2
			
	 ARTICLE 3
	  	     CLOSING
	  	2
			
	 3.1
	  	 Closing
	  	2
			
	 3.2
	  	 Closing Deliveries
	  	2
			
	 3.3
	  	 Post-Closing Deliveries
	  	3
			
	 3.4
	  	 Exercise of Pipeline Option
	  	4
			
	 ARTICLE 4
	  	     REPRESENTATIONS AND WARRANTIES OF REX
	  	5
			
	 4.1
	  	 Organization
	  	5
			
	 4.2
	  	 Authority
	  	5
			
	 4.3
	  	 Validity and Binding Effect
	  	5
			
	 4.4
	  	 Noncontravention
	  	5
			
	 4.5
	  	 Absence of Litigation
	  	5
			
	 4.6
	  	 Compliance with Law
	  	6
			
	 4.7
	  	 Title to Pipelines
	  	6
			
	 4.8
	  	 Condition of Pipelines
	  	6
			
	 4.9
	  	 Brokers and Finders
	  	6
			
	 4.10
	  	 Rights of Way
	  	6
			
	 4.11
	  	 Payments
	  	6
			
	 4.12
	  	 Consents and Preferential Rights
	  	6
			
	 4.13
	  	 Taxes and Assessments
	  	6
			
	 4.14
	  	 No Contracts
	  	7
			
	 4.15
	  	 Permits
	  	7
			
	 ARTICLE 5
	  	     REPRESENTATIONS AND WARRANTIES OF STONEHENGE
	  	7
			
	 5.1
	  	 Organization
	  	7

  

 -i- 

 TABLE OF CONTENTS 
 (continued) 
  

					
	 	  	 	  	Page
	 5.2
	  	 Authority
	  	7
			
	 5.3
	  	 Validity and Binding Effect
	  	7
			
	 5.4
	  	 Noncontravention
	  	7
			
	 5.5
	  	 Absence of Litigation
	  	8
			
	 5.6
	  	 Compliance with Law
	  	8
			
	 5.7
	  	 Title to the Plant
	  	8
			
	 5.8
	  	 Condition of Plant
	  	8
			
	 5.9
	  	 Brokers and Finders
	  	8
			
	 5.10
	  	 Taxes and Assessments
	  	8
			
	 ARTICLE 6
	  	     REPRESENTATIONS AND WARRANTIES OF THE COMPANY
	  	9
			
	 6.1
	  	 Organization
	  	9
			
	 6.2
	  	 Authority
	  	9
			
	 6.3
	  	 Validity and Binding Effect
	  	9
			
	 6.4
	  	 Noncontravention
	  	9
			
	 6.5
	  	 Litigation
	  	9
			
	 ARTICLE 7
	  	     SURVIVAL OF REPRESENTATIONS AND WARRANTIES
	  	9
			
	 7.1
	  	 Limitation on and Survival of Representations and Warranties
	  	9
			
	 7.2
	  	 Limitation of Liability
	  	10
			
	 7.3
	  	 Disclaimer of Other Warranties
	  	10
			
	 ARTICLE 8
	  	     POST-CLOSING OBLIGATIONS
	  	11
			
	 8.1
	  	 Further Assurances
	  	11
			
	 8.2
	  	 Pipeline Inspections
	  	11
			
	 8.3
	  	 Rights-of-Way
	  	11
			
	 ARTICLE 9
	  	     MISCELLANEOUS
	  	12
			
	 9.1
	  	 Entire Agreement
	  	12
			
	 9.2
	  	 Expenses
	  	12
			
	 9.3
	  	 Governing Law
	  	12
			
	 9.4
	  	 Dispute Resolution
	  	12
			
	 9.5
	  	 Assignment
	  	13
			
	 9.6
	  	 Notices
	  	14
			
	 9.7
	  	 Counterparts
	  	14

  

 -ii- 

 TABLE OF CONTENTS 
 (continued) 
  

					
	 	  	 	  	Page
	 9.8
	  	 Specific Performance
	  	14
			
	 9.9
	  	 Severability
	  	14
			
	 9.10
	  	 No Third-Party Reliance
	  	14

 ATTACHMENTS: 
 Appendix A – Definitions 
 Exhibit A – Partial Plant Assignment Conveyance and Bill of
Sale 
 Exhibit B – Rex Assignment and Assumption Agreement 
 Exhibit C – Stonehenge Assignment and Assumption Agreement 
 Exhibit D – Certificate of
Non-Foreign Status 
 Exhibit E – Site Lease 
 Exhibit F – Pipeline Option Agreement 
 Exhibit G – Gas Gathering Agreement 

Exhibit H – Pipelines Assignment and Assumption Agreement 
 Schedule 1 – Pipelines 
 Schedule 2 – Plant Site 
 Schedule 3 – Required Consents 
 Schedule 4
– Non-transferable Permits 
 Schedule 4.14 – Contracts 
 Schedule 5 – Rights of Way 
  

 -iii- 

 CONTRIBUTION AGREEMENT 
 This CONTRIBUTION AGREEMENT (this “Agreement”) is made and entered into as of December 21, 2009, by and among Keystone Midstream Services, LLC, a Delaware limited liability
company (the “Company”), R.E. Gas Development, LLC, a Delaware limited liability company (“Rex”), and Stonehenge Energy Resources, L.P., a Delaware limited partnership
(“Stonehenge”). The Company, Rex, and Stonehenge may each be separately referred to herein as a “Party” and collectively as the “Parties.” 
 RECITALS 
 WHEREAS, Rex desires to contribute to the Company the Rex Contributed Assets; and 
 WHEREAS, Stonehenge desires to
contribute to the Company the Stonehenge Contributed Assets; and 
 WHEREAS, the Company is willing to acquire and accept such
Contributed Assets; and 
 WHEREAS, in consideration of the contribution by Rex and Stonehenge of the Contributed Assets, Rex
and Stonehenge will acquire certain limited liability company interests in the Company and be admitted as a member of the Company, in accordance with the terms and subject to the conditions set forth in the Limited Liability Company Agreement of the
Company (the “LLC Agreement”), dated as of the date hereof, by and among the Company, Rex and Stonehenge; and 
 WHEREAS, capitalized terms used herein that are defined in Appendix A attached hereto and incorporated herein shall have the respective meanings assigned to such terms in Appendix A, and other capitalized terms used herein that are not
defined in Appendix A shall have the respective meanings assigned to such terms in the LLC Agreement; 
 NOW, THEREFORE, in
consideration of the premises, the terms and conditions contained herein, the mutual benefits to be gained from the performance thereof and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the
Parties hereby agree as follows: 
 ARTICLE 1 
 SALE OF PLANT INTEREST 
 1.1 Sale of Plant
Interest. At the Closing, Stonehenge shall sell and transfer to Rex a 16.3% undivided interest in and to the Plant pursuant to the Partial Plant Assignment, Conveyance and Bill of Sale in the form attached hereto as Exhibit A. 
 1.2 Plant Purchase Price. In consideration for the transfer of the undivided interest in the Plant, Rex shall pay Stonehenge
$740,000.00 (the “Plant Purchase Price”) on the Closing Date by bank wire transfer in immediately available funds to an account to be designated by Stonehenge not less than 3 days prior to the Closing Date. 
  

 Contribution Agreement – Page 1 

 ARTICLE 2 
 CONTRIBUTIONS 
 2.1 Contribution of Rex Contributed
Assets. At the Closing, Rex shall contribute, transfer and deliver to the Company, and, subject to the Permitted Encumbrances, the Company shall accept from Rex all of Rex’s right, title and interest in and to the Rex Contributed Assets.

 2.2 Contribution of Stonehenge Contributed Assets. At the Closing, Stonehenge shall contribute, transfer and deliver
to the Company, and, subject to the Permitted Encumbrances, the Company shall accept from Stonehenge all of Stonehenge’s right, title and interest in and to the Stonehenge Contributed Assets. 
 2.3 Assumption of Liabilities. Without limiting any rights to indemnity under Article 7, from and after the Closing the Company
assumes and hereby agrees to fulfill, perform, pay and discharge (or cause to be fulfilled, performed, paid or discharged) all of the obligations and liabilities of Rex and Stonehenge, known or unknown, with respect to the Contributed Assets,
arising from and after the Closing Date, but excluding any such obligations or liabilities arising from, related to or growing out of (a) acts or omissions of the contributing party before Closing, or (b) conditions or circumstances
pertaining to the Contributed Assets that existed before Closing, whether or not first asserted after Closing (all of said obligations and liabilities, subject to the exclusions below, being herein referred to as the “Assumed
Liabilities”). 
 2.4 No Assumption of Retained Liabilities. All of the Rex Retained Liabilities and the
Stonehenge Retained Liabilities shall remain the sole responsibility of Rex and Stonehenge, respectively, and shall be retained, paid, performed and discharged solely by Rex and Stonehenge, respectively, when and as they become due and payable or
performable. 
 ARTICLE 3 
 CLOSING 
 3.1 Closing. The closing of the transactions contemplated
by this Agreement (the “Closing”) will take place electronically, concurrently with the initial capital contributions of Rex and Stonehenge pursuant to the terms of the LLC Agreement and Article 2. At the Closing, each Party
will execute each of the closing deliveries required by such Party as set forth in Section 3.2 below. Each Party will scan and email copies of the executed documents to the other Party and will transmit one set of the executed original
documents to the other Party by Fed-Ex (or comparable carrier). As used herein, the term “Closing Date” means the date upon which the Closing takes place, which shall be December 21, 2009, unless otherwise hereafter
agreed by the Parties. 
 3.2 Closing Deliveries. The following provisions shall be applicable with respect to the
Closing: 
 (a) At Closing, Rex shall: 
 (i) pay and deliver the Plant Purchase Price to Stonehenge; 
 (ii) execute and deliver to the Company the Rex Assignment and Assumption Agreement in the form attached hereto as Exhibit B
transferring the Rex Contributed Assets to the Company; 
  

 Contribution Agreement – Page 2 

 (iii) execute and deliver a completed Certification of Non-Foreign Status in
the form attached hereto as Exhibit D; 
 (iv) execute and deliver to the Company the Pipeline Option Agreement
granting the Pipeline Option in favor of the Company in the form attached hereto as Exhibit F; and 
 (v) execute
and deliver to Stonehenge or the Company any and all other instruments, documents and other items reasonably necessary to effectuate the terms of this Agreement, as may be reasonably requested by Stonehenge or the Company. 
 (b) At Closing, Stonehenge shall: 
 (i) execute and deliver to Rex the Partial Plant Assignment, Conveyance and Bill of Sale; 
 (ii) execute and deliver to the Company the Stonehenge Assignment and Assumption Agreement in the form attached hereto as
Exhibit C transferring the Stonehenge Contributed Assets to the Company; and 
 (iii) execute and deliver to Rex
or the Company any and all other instruments, documents and other items reasonably necessary to effectuate the terms of this Agreement, as may be reasonably requested by Rex or the Company. 
 (c) At Closing, the Company shall: 
 (i) execute and deliver to Rex a counterpart to the Rex Assignment and Assumption Agreement; 
 (ii) execute and deliver to Stonehenge a counterpart to the Stonehenge Assignment and Assumption Agreement; 
 (iii) execute and deliver to Rex a counterpart to the Pipeline Option Agreement; and 
 (iv) execute and deliver to Rex or Stonehenge any and all other instruments, documents and other items reasonably necessary
to effectuate the terms of this Agreement, as may be reasonably requested by Rex or Stonehenge. 
 3.3 Post-Closing
Deliveries. As soon as commercially practicable after Rex acquires the Plant Site, Rex and the Company shall enter into the Site Lease substantially in the form attached hereto as Exhibit E leasing the Plant Site to the Company. If Rex is unable
to close on the acquisition of the Plant Site within 30 days following the execution hereof, then the Company shall endeavor, for a period of 120 days thereafter, to identify, negotiate upon and acquire an alternate site, acceptable to the Company
(“Alternate Site”) and the following provisions shall apply: 
 (a) During the 120-day period while
attempting to acquire an Alternate Site, Rex may continue to attempt to acquire the Plant Site, and if such is acquired within 120 days after the execution hereof, then Rex and the Company shall enter into the Site Lease in the form attached hereto
as Exhibit E leasing the Plant Site to the Company. 
  

 Contribution Agreement – Page 3 

 (b) If, within the time set forth above, the Plant Site cannot be acquired,
but an Alternate Site can be acquired by the Company, under conditions that will permit the Company to perform under the Gas Gathering, Compression and Processing Agreement, of even date herewith (“Processing Agreement”) then the Company
shall acquire the Alternate Site. 
 (c) If the Alternate Site can be acquired, but will require increases in the
costs and expenditures to the Company to install the Plant and related facilities, including extensions of pipelines, that will be incurred because of the use of the Alternate Site instead of the Plant Site, then the Company and Rex shall negotiate
on modifications to the Processing Agreement to reflect such increased costs. If the parties can agree on those revisions, then the Company will acquire the Alternate Site and the parties will execute an amendment to the Processing Agreement
reflecting the agreed upon revisions. 
 (d) If at the expiration of 150 days following the execution of this
Agreement, Rex has not acquired the Plant Site and the Company has not acquired an Alternate Site, in accordance with the terms above, then either Rex or Stonehenge may terminate this Agreement, and upon such termination (i) all Contributed
Assets shall be reassigned to the party that contributed them to the Company, (ii) Rex shall assign its undivided 16.3% interest in the Plant back to Stonehenge, and Stonehenge shall refund an amount equal to the Plant Purchase Price to Rex
(iii) the parties shall cause the dissolution of the Company, (iv) the Processing Agreement shall be deemed terminated, and (iv) no party shall have any further obligations or liabilities to the other. 
 3.4 Exercise of Pipeline Option. Upon the election of the Company to purchase the Pipelines pursuant to the terms of the Pipeline
Option Agreement, (i) Rex and the Company will enter into the Gas Gathering Agreement attached hereto as Exhibit G and (ii) Rex and the Company will execute the Pipelines Assignment and Assumption Agreement substantially in the form
attached hereto as Exhibit H in order to transfer the Pipelines to Company and to cause the Company to assume and agree to fulfill, perform, pay and discharge (or cause to be fulfilled, performed, paid or discharged) all of the obligations and
liabilities of Rex, known or unknown, with respect to the Pipelines, arising from and after the date of such assignment and assumption agreement, but excluding any such obligations or liabilities arising from, related to or growing out of
(a) acts or omissions of Rex before the date of the assignment and assumption agreement, or (b) conditions or circumstances pertaining to the Pipelines that existed before the date of such assignment and assumption agreement, whether or
not first asserted after the date of such assignment and assumption agreement. Upon the execution of such Pipelines Assignment and Assumption Agreement, the obligations and liabilities assumed by the Company with respect to the Pipelines will be
treated as part of the Assumed Obligations for all purposes under this Agreement and the Pipelines will be treated as Rex Contributed Assets for all purposes under this Agreement. 
  

 Contribution Agreement – Page 4 

 ARTICLE 4 
 REPRESENTATIONS AND WARRANTIES OF REX 
 Rex hereby represents and
warrants to the Company and Stonehenge as follows: 
 4.1 Organization. Rex is a corporation validly existing and in good
standing under the laws of the State of Delaware, and has the requisite corporate power and authority to own, lease and operate its properties and to conduct its business as it is presently being conducted. 
 4.2 Authority. Rex has full and absolute corporate power and authority to execute and deliver this Agreement, to perform its
obligations hereunder and to consummate the transactions contemplated. The execution, delivery and performance of this Agreement by Rex have been duly authorized by all necessary corporate and other action, and no further action is necessary on the
part of Rex for Rex to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated herein. 
 4.3 Validity and Binding Effect. This Agreement has been executed and delivered on behalf of Rex and constitutes the legal, valid and binding obligation of Rex, enforceable against Rex in
accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors’ rights generally and general equitable principles, regardless
of whether enforceability is considered in a proceeding at law or in equity. 
 4.4 Noncontravention. The execution and
delivery by Rex of this Agreement does not, and the performance by Rex of its obligations hereunder and the consummation of the transactions contemplated herein will not, conflict with, result in any violation of or default (with or without notice
or lapse of time or both) under, any provision of (i) the Articles of Incorporation or the Bylaws of Rex, (ii) any loan or credit agreement, note, bond, mortgage, indenture, lease, permit, concession, franchise, license or other contract,
agreement or instrument to which Rex is a party or (iii) any judgment, order, decree, statute, law, ordinance, rule or regulation applicable to Rex or any of its properties or assets, except for consents of certain landowners or grants of
rights-of-way from certain landowners necessary to authorize Rex to convey or assign to the Company the right to own and maintain certain portions of existing Pipelines leading to one or more existing wells. Rex will make commercially reasonable
efforts to obtain all consents or additional rights-of-way necessary to assign the Pipelines to the Company; provided, however, if Rex is unable to obtain any consent or right-of-way necessary to assign a Pipeline to the Company at
Closing, then Rex will, following Closing, continue to diligently pursue obtaining those consents at Rex’s expense. Until Rex is able to obtain any such necessary authorization, consent, or waiver, Rex shall retain ownership of the portion of
the Pipelines that cannot be assigned to the Company and will (i) cooperate, at Company’s request, in any lawful arrangement designed to provide Company with the economic benefits of, and subject the Company to the economic burdens of, any
such portions of the Pipeline, and (ii) enforce, at the request of Company and for the benefit of Company and at Company’s expense, any rights of Rex arising from any non-assignable rights-of-way. 
 4.5 Absence of Litigation. There is no Claim pending or, to the Knowledge of Rex, threatened against Rex or any of its Affiliates
relating to the transactions contemplated by this Agreement or the Pipelines or which, if adversely determined, would reasonably be expected to materially impair the ability of Rex to perform its obligations and agreements under this Agreement and
to consummate the transactions contemplated hereby or that would constitute Assumed Liabilities. 
  

 Contribution Agreement – Page 5 

 4.6 Compliance with Law. All material filings and notices relating to the Pipelines,
or the ownership or operation thereof, required to be made by Rex with all applicable state and federal agencies have been made by or on behalf of Rex. To the Knowledge of Rex, Rex is not in violation of any Law with respect to the Pipelines.

 4.7 Title to Pipelines. Rex has good and defensible title to the Pipelines, free and clear of all Encumbrances other
than Permitted Encumbrances. 
 4.8 Condition of Pipelines. To Rex’s Knowledge, the Pipelines are in good operating
condition and repair (normal wear and tear excepted), are free from material defects (patent and latent), are suitable for the purposes for which they are currently used and are not in need of material maintenance or repairs except for ordinary
routine maintenance and repairs. 
 4.9 Brokers and Finders. No investment banker, broker, finder, financial advisor or
other intermediary has been retained by or is authorized to act on behalf of Rex who is entitled to receive from the Company or Stonehenge any fee or commission in connection with the transactions contemplated by this Agreement. 
 4.10 Rights of Way. The Rights of Way include all deeds, leases, easements and rights-of-way of real property necessary for the
ownership, occupation and use of the Pipelines and permit the gathering and movement of gas though the Pipelines from any sources of supply. All portions of the Pipelines are located upon lands covered by valid and subsisting Rights of Way. Rex is
not currently in default under the terms of any of the Rights of Way, including the payment of any rentals or other payments required to maintain the Rights of Way in force, and no event has occurred which, with the passage of time or giving of
notice, or both, would constitute such a default. 
 4.11 Payments. Rex has settled and paid all surface damages incurred
in connection with the installation and construction of the Pipelines. Rex has paid all amounts due in connection with the procurement, installation and construction of the Pipelines. 
 4.12 Consents and Preferential Rights. Schedule 3, attached hereto, lists all consents required to be obtained by Rex to transfer
Rex’s Contributed Assets or the Pipelines to the Company, and except for those, Rex does not require the consent of any third party or Governmental Entity to transfer Rex’s Contributed Assets or the Pipelines to the Company. No person
holds any preferential purchase rights with respect to any portion of the Pipelines. 
 4.13 Taxes and Assessments.

 (a) With respect to all Taxes related to the Pipelines, to the Knowledge of Rex, (a) all reports,
returns, statements (including estimated reports, returns or statements), and other similar filings (“Tax Returns”) relating to the Pipelines required to be filed by Rex with respect to such Taxes have been timely filed with
the appropriate Governmental Entity in all jurisdictions in which such Tax Returns are required to be filed, (b) such Tax Returns are true and correct in all material respects, and (c) all Taxes reported on such Tax Returns have been paid,
except those being contested in good faith. 
  

 Contribution Agreement – Page 6 

 (b) To the Knowledge of Rex, with respect to all Taxes related to the
Pipelines, (i) there are not currently in effect any extension or waiver of any statute of limitations of any jurisdiction regarding the assessment or collection of any such Tax; (ii) there are no administrative proceedings or lawsuits
pending against the Pipelines or Rex by any taxing authority; and (iii) there are no Tax liens on any of the Pipelines except for liens for Taxes not yet due. 
 4.14 No Contracts. Except (i) as set forth on Schedule 4.14, (ii) for the Rights of Way, and (iii) for contracts with the Company, there are no contracts or agreements affecting the
Pipelines that will be binding on the Company following Closing. 
 4.15 Permits. Rex owns or holds all permits,
licenses, variances, exemptions, Orders, franchises and approvals of all Governmental Entities necessary for the lawful ownership and operation of the Pipelines (collectively, the “Rex Permits”). Each Rex Permit is in full
force and effect, and Rex is in compliance with all of its obligation with respect thereto. To the Knowledge of Rex, no event has occurred that causes, or upon the giving of notice or the lapse of time or otherwise would cause, revocation or
termination of any Rex Permit. All Rex Permits shall be, subject to Permitted Encumbrances, owned or held by Rex at Closing, and except as set forth on Schedule 4, attached hereto, are fully transferrable to Company. 
 ARTICLE 5 
 REPRESENTATIONS AND WARRANTIES OF STONEHENGE 
 Stonehenge hereby represents and warrants to the Company and Rex as follows:

 5.1 Organization. Stonehenge is a limited partnership validly existing and in good standing under the laws of the
State of Delaware, and has the requisite limited partnership power and authority to own, lease and operate its properties and to conduct its business as it is presently being conducted. 
 5.2 Authority. Stonehenge has full and absolute power and authority to execute and deliver this Agreement, to perform its obligations
hereunder and to consummate the transactions contemplated herein. The execution, delivery and performance of this Agreement by Stonehenge has been duly authorized by all necessary partnership and other action, and no further action is necessary on
the part of Stonehenge for Stonehenge to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated herein. 
 5.3 Validity and Binding Effect. This Agreement has been executed and delivered on behalf of Stonehenge and constitutes the legal, valid and binding obligation of Stonehenge, enforceable against
Stonehenge in accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors’ rights generally and general equitable
principles, regardless of whether enforceability is considered in a proceeding at law or in equity. 
 5.4
Noncontravention. The execution and delivery by Stonehenge of this Agreement does not, and the performance by Stonehenge of its obligations hereunder and the consummation of the transactions contemplated herein will not, conflict with, result
in any violation of or default (with or without notice or lapse of time or both) under, any provision of (i) the

  

 Contribution Agreement – Page 7 

 
partnership agreement of Stonehenge, (ii) any loan or credit agreement, note, bond, mortgage, indenture, lease, permit, concession, franchise, license or other contract, agreement or
instrument to which Stonehenge is a party or (iii) any judgment, order, decree, statute, law, ordinance, rule or regulation applicable to Stonehenge or any of its properties or assets. 
 5.5 Absence of Litigation. There is no Claim pending or, to the Knowledge of Stonehenge, threatened against Stonehenge or any of its
Affiliates relating to the transactions contemplated by this Agreement or the Plant or which, if adversely determined, would reasonably be expected to materially impair the ability of Stonehenge to perform its obligations and agreements under this
Agreement and to consummate the transactions contemplated hereby or that would constitute Assumed Liabilities. 
 5.6
Compliance with Law. All material filings and notices relating to the Plant, or the ownership or operation thereof, required to be made by Stonehenge with all applicable state and federal agencies have been made by or on behalf of Stonehenge.
To the Knowledge of Stonehenge, Stonehenge is not in violation of any Law with respect to the Plant. 
 5.7 Title to the
Plant. Stonehenge has good and defensible title to the Plant, free and clear of all Encumbrances other than Permitted Encumbrances. 
 5.8 Condition of Plant. To Stonehenge’s Knowledge, the Plant is in good operating condition and repair (normal wear and tear excepted), is free from material defects (patent and latent), is
suitable for the purposes for which it is currently used and is not in need of material maintenance or repairs except for ordinary routine maintenance and repairs. 
 5.9 Brokers and Finders. No investment banker, broker, finder, financial advisor or other intermediary has been retained by or is authorized to act on behalf of Stonehenge who is entitled to
receive from the Company or Rex any fee or commission in connection with the transactions contemplated by this Agreement. 
 5.10 Taxes and Assessments. 
 (a) With respect to all Taxes related to the Plant, to the
Knowledge of Stonehenge, (a) all Tax Returns relating to the Plant required to be filed by Stonehenge with respect to such Taxes have been timely filed with the appropriate Governmental Entity in all jurisdictions in which such Tax Returns are
required to be filed, (b) such Tax Returns are true and correct in all material respects, and (c) all Taxes reported on such Tax Returns have been paid, except those being contested in good faith. 
 (b) To Stonehenge’s Knowledge, with respect to all Taxes related to the Plant, (i) there are not currently in
effect any extension or waiver of any statute of limitations of any jurisdiction regarding the assessment or collection of any such Tax; (ii) there are no administrative proceedings or lawsuits pending against the Plant or Stonehenge by any
taxing authority; and (iii) there are no Tax liens on the Plant except for liens for Taxes not yet due. 
  

 Contribution Agreement – Page 8 

 ARTICLE 6 
 REPRESENTATIONS AND WARRANTIES OF THE COMPANY 
 The Company hereby
represents and warrants to Rex and Stonehenge as follows: 
 6.1 Organization. The Company is a limited liability company
duly organized and validly existing under the laws of the State of Delaware, and has the requisite limited liability company power and authority to own, lease and operate its properties and to conduct its business as it is presently being conducted.

 6.2 Authority. The Company has full and absolute power and authority to execute and deliver this Agreement, to perform
its obligations hereunder and to consummate the transactions contemplated. The execution, delivery and performance of this Agreement by the Company have been duly authorized by all necessary limited liability company and other action, and no further
action is necessary on the part of the Company for the Company to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated herein. 
 6.3 Validity and Binding Effect. This Agreement has been executed and delivered on behalf of the Company and constitutes the legal,
valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement
of creditors’ rights generally and general equitable principles, regardless of whether enforceability is considered in a proceeding at law or in equity. 
 6.4 Noncontravention. The execution and delivery by the Company of this Agreement does not, and the performance by the Company of its obligations hereunder and the consummation of the transactions
contemplated herein will not, conflict with, result in any violation of or default (with or without notice or lapse of time or both) under, any provision of (i) the Certificate of Formation or LLC Agreement of the Company, (ii) any loan or
credit agreement, note, bond, mortgage, indenture, lease, permit, concession, franchise, license or other contract, agreement or instrument to which the Company is a party or (iii) any judgment, order, decree, statute, law, ordinance, rule or
regulation applicable to the Company or any of its properties or assets. 
 6.5 Litigation. There is no Claim or
investigation pending or, to the Knowledge of the Company, threatened against or affecting the Company that questions the validity or enforceability of this Agreement or any other document, instrument or agreement to be executed and delivered by the
Company in connection with the transactions contemplated herein. 
 ARTICLE 7 
 SURVIVAL OF REPRESENTATIONS AND WARRANTIES 
 7.1 Limitation on and Survival of Representations and Warranties. 
 (a) Rex, Stonehenge, and the Company acknowledge and agree that no representations or warranties have been made by Rex, Stonehenge, or the Company in connection with the transactions contemplated by this Agreement, except for those
representations and warranties made in Article 4, Article 5, and Article 6 hereof. 
  

 Contribution Agreement – Page 9 

 (b) Subject to paragraph (a) of this Section 7.1, all
representations and warranties contained in this Agreement, or in any agreements or instruments executed in connection herewith or delivered pursuant hereto, shall survive the Closing for a period of 2 years beginning on the Closing Date, except
that any representations and warranties with respect to Taxes shall survive until the expiration of the applicable statute of limitations with respect to the underlying Tax claim (including any valid extensions). Such representations and warranties
shall only be effective with respect to any breach or claim when notice of such breach or claim shall have been given in writing to the Party in breach or against whom indemnification is sought within such period. All covenants contained in this
Agreement or in any agreement or instrument executed in connection herewith shall survive the Closing for the applicable statute of limitations relating thereto. Any claim for indemnification for which notice has been given within the prescribed
period may be prosecuted to conclusion notwithstanding the subsequent expiration of such period. 
 7.2 Limitation of
Liability. Except with respect to Rex’s obligations for Rex Retained Liabilities and Stonehenge’s obligations for Stonehenge Retained Liabilities, Rex shall not be liable for breach of Rex’s representations or warranties,
Stonehenge shall not be liable for breach of Stonehenge’s representations or warranties, and the Company shall not be liable for breach of its representations or warranties unless and until the amount of all Losses caused by such breach exceed
$10,000.00 in the aggregate (the “Basket”), in which event the Party seeking recovery for such breach may recover all Losses incurred from the first dollar of such Losses. Under no circumstances shall any Party be liable to
the other Party for consequential, incidental, or punitive damages, including damages for lost profits, and this sentence shall survive the Closing. 
 7.3 Disclaimer of Other Warranties. The express representations and warranties of Rex and Stonehenge contained in this Agreement are exclusive and are in lieu of all other representations and
warranties, express, implied, or statutory. Except as provided in Article 4 and Article 5, REX AND STONEHENGE HAVE NOT MADE, AND REX AND STONEHENGE HEREBY EXPRESSLY DISCLAIM AND NEGATE, AND EACH PARTY HEREBY EXPRESSLY WAIVES, ANY
REPRESENTATION OR WARRANTY, EXPRESS, IMPLIED, AT COMMON LAW, BY STATUTE OR OTHERWISE RELATING TO (I) THE ACCURACY, COMPLETENESS OR MATERIALITY OF ANY INFORMATION, DATA OR OTHER MATERIALS (WRITTEN OR ORAL) NOW, HERETOFORE OR HEREAFTER FURNISHED
TO ANY SUCH PARTY BY OR ON BEHALF OF REX OR STONEHENGE, (II) THE ENVIRONMENTAL CONDITION OF THE PROPERTIES, (III) ANY IMPLIED OR EXPRESS WARRANTY OF MERCHANTABILITY, (IV) ANY IMPLIED OR EXPRESS WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE, (V) ANY IMPLIED OR EXPRESS WARRANTY OF CONFORMITY TO MODELS OR SAMPLES OF MATERIALS, (VI) ANY RIGHTS OF PURCHASERS UNDER APPROPRIATE STATUTES TO CLAIM DIMINUTION OF CONSIDERATION, AND (VII) ANY AND ALL IMPLIED WARRANTIES
EXISTING UNDER APPLICABLE LAW; IT BEING THE EXPRESS INTENTION OF REX, STONEHENGE, AND THE COMPANY THAT SUBJECT TO AND WITHOUT LIMITING REX’S AND STONEHENGE’S EXPRESS REPRESENTATION AND WARRANTIES CONTAINED HEREIN, THE PERSONAL PROPERTY,
EQUIPMENT AND FIXTURES INCLUDED WITHIN THE PIPELINES AND THE PLANT ARE TO BE

  

 Contribution Agreement – Page 10 

 
CONVEYED TO THE COMPANY IN THEIR PRESENT CONDITION AND STATE OF REPAIR, AND THAT REX, STONEHENGE, AND THE COMPANY HAVE MADE OR CAUSED TO BE MADE SUCH INSPECTIONS AS THE REX, STONEHENGE, AND THE
COMPANY DEEM APPROPRIATE. REX, STONEHENGE, AND THE COMPANY AGREE THAT, TO THE EXTENT REQUIRED BY APPLICABLE LAW TO BE EFFECTIVE, THE DISCLAIMERS OF CERTAIN WARRANTIES CONTAINED IN THIS SECTION ARE “CONSPICUOUS” DISCLAIMERS FOR THE PURPOSES
OF ANY APPLICABLE LAW, RULE OR ORDER. 
 ARTICLE 8 
 POST-CLOSING OBLIGATIONS 
 8.1 Further
Assurances. The Parties agree that from time to time after the Closing Date they shall (i) execute, deliver, acknowledge, file and record, or cause to be executed, delivered, acknowledged, filed and recorded, such further bills of sale,
deeds, general conveyances, endorsements, assignments and other good and sufficient instruments of conveyance, transfer, assignment or contribution and such further consents, certifications, affidavits and assurances as a Party may reasonably
request in order to vest in the Company all right, title and interest in the Contributed Assets or otherwise to consummate and make effective the transactions contemplated by this Agreement upon the terms and conditions set forth herein and
(ii) take, or cause to be taken, all actions and do, or cause to be done, all such things as the a Party may reasonably request in order to put the Company in actual possession of the Contributed Assets or otherwise to accomplish the purposes
of this Agreement. 
 8.2 Pipeline Inspections. The Parties acknowledge that Rex is unable to provide sufficient records
and documentation with respect to the construction and installation of the Pipelines, including maximum operating pressures. Accordingly, after Closing, the Company shall undertake pressure tests and other tests and inspections to determine the
capabilities and integrity of the Pipelines and that the costs for such tests shall be paid for by Rex. Rex agrees to reimburse the Company for the first $300,000.00 in actual costs of such tests and inspections and any necessary repairs to the
Pipelines undertaken as a result of such tests and inspections; provided, however, all actual costs of such tests, inspections and repairs in excess of $300,000.00 shall be paid by the Company and the Company shall not be entitled to reimbursement
for such costs in excess of $300,000.00. 
 8.3 Rights-of-Way. The Parties acknowledge and agree that certain of the
Rights-of-Way used for the Pipelines arise pursuant to the terms of oil and gas leases owned by Rex. From and after the Closing, Rex agrees to use commercially reasonable efforts to acquire new rights-of-way (covering the same lands) that are
independent from the Rights-of-Way arising pursuant to oil and gas leases owned by Rex. Rex shall use commercially reasonable efforts to ensure that all such new rights-of-way acquired are indefinite in duration and permit the transportation of gas
from other lands across such rights-of-way. 
  

 Contribution Agreement – Page 11 

 ARTICLE 9 
 MISCELLANEOUS 
 9.1 Entire Agreement. This
Agreement and the documents referred to herein and to be delivered pursuant hereto constitute the entire agreement between the Parties pertaining to the subject matter hereof, and supersede all prior and contemporaneous agreements, understandings,
negotiations and discussions of the Parties, whether oral or written, and there are no warranties, representations or other agreements between the Parties in connection with the subject matter hereof, except as specifically set forth herein or
therein. 
 9.2 Expenses. 
 (a) Each of the Parties hereto shall pay the fees and expenses of their respective counsel, investment bankers, financial advisors, accountants and other experts and the other expenses incident to the
negotiation and preparation of this Agreement and consummation of the transactions contemplated hereby. 
 (b)
The Company shall be solely responsible for all filings and recording of assignments and other documents which transfer any of the Contributed Assets to the Company. 
 9.3 Governing Law. This Agreement shall be construed and interpreted according to the laws of the State of Pennsylvania without regard to the conflicts of law rules thereof. 
 9.4 Dispute Resolution. 
 (a) Dispute. Any controversy, claim, deadlock or dispute between or among two or more of the Parties (each, a “Dispute Party”) arising out of, relating to or in connection
with this Agreement (a “Dispute”), and that is not otherwise settled by agreement between the Dispute Parties, shall be exclusively and finally resolved pursuant to the provisions and procedures set forth in this
Section 9.4. Without limiting the generality of the first sentence of this Section, the following shall be considered Disputes for this purpose: (a) all questions relating to the interpretation or breach of this Agreement, (b) all
questions relating to any representations, negotiations and other proceedings leading to the execution of this Agreement and (c) all questions regarding the application of this Section 9.4 and the arbitration provisions contained herein.
Notwithstanding the foregoing provisions of this Section 9.4, any legal action for a preliminary injunction or other prejudgment relief will be resolved by the arbitrator appointed in accordance with Section 9.4; provided, that, at any
time before the arbitrator has been appointed, any Dispute Party may seek a preliminary injunctive or other prejudgment relief from a Pennsylvania court of competent jurisdiction to the extent necessary to preserve the status quo or to
preserve such Dispute Party’s ability to obtain meaningful relief pending the outcome of the arbitration proceeding under this Section 9.4. Any Dispute Party may bring an action in a Pennsylvania court of competent jurisdiction to compel
arbitration of any Dispute after the procedure under Section 9.4(b) is exhausted; provided, that to the fullest extent permitted by law, each Dispute Party hereby waives and relinquishes any right to compel the resolution of any substantive
issues regarding a Dispute in any court of competent jurisdiction, or to request any other relief from a court of competent jurisdiction except as specifically set forth in this Section 9.4. 
 (b) Executive Mediation. In the event of any Dispute, upon written request of any Dispute Party, such Dispute shall
immediately be referred to one representative of the executive management designated by each Dispute Party in respect of such Dispute who

  

 Contribution Agreement – Page 12 

 
is authorized to settle such Dispute. Such representatives shall promptly meet in a good faith effort to resolve such Dispute. If the representatives designated by the relevant Dispute Parties
pursuant to this Section 9.4(b) do not resolve such Dispute within ten (10) days after such written request, such Dispute shall be exclusively and finally resolved by binding arbitration in accordance with the provisions and procedures set
forth in Section 9.4(c). 
 (c) Arbitration. The arbitration shall be administered by the American
Arbitration Association, or a successor organization (the “AAA”), under its Commercial Arbitration Rules. The arbitration shall be conducted by a single arbitrator chosen under the AAA’s Commercial Arbitration Rule and
such arbitrator shall have at least ten (10) years experience practicing in the oil and gas industry. 
 (i)
The site of arbitration shall be Pittsburgh, Pennsylvania, unless otherwise agreed by the Parties. 
 (ii) The
Dispute Parties shall diligently and expeditiously proceed with arbitration. The arbitrator shall be instructed to render a written decision within forty-five (45) days after the conclusion of the hearing or the filing of such briefs as may be
authorized by the arbitrator, subject to any reasonable delay due to unforeseen circumstances. Except to the extent the Dispute Parties’ remedies may be limited by the terms of this Agreement, the arbitrator shall be empowered to award any
remedy available under the laws of the State of Pennsylvania including monetary damages and specific performance. The arbitrator shall not have the power to amend or add to this Agreement. The award of the arbitrator shall be in writing with reasons
for such award and signed by the arbitrator. Any award rendered shall be final and binding. Judgment rendered by the arbitrator may be entered in any court having jurisdiction thereof. 
 (iii) The Dispute Parties hereto hereby waive any rights to appeal or to review of such award by any court or tribunal. The
Dispute Parties further undertake to carry out without delay the provisions of any arbitral award or decision, and each agrees that any such award or decision may be enforced by any competent tribunal. 
 (iv) The costs of such arbitration shall be determined by and allocated between the Dispute Parties by the arbitrator in its
award. This Section 9.4(c) constitutes an independent contract to arbitrate all disputes between the potential Dispute Parties, including disputes regarding contract formation and whether a Dispute Party is entitled to quasi-contractual or
quantum meruit recovery from another Dispute Party. Unless otherwise agreed in writing, the Dispute Parties shall continue to perform their respective obligations hereunder during any arbitration proceeding by the Dispute Parties in
accordance with this Section 9.4(c). 
 9.5 Assignment. This Agreement and each Party’s respective rights
hereunder may not be assigned at any time except as expressly set forth herein without the prior written consent of the other Parties. 
  

 Contribution Agreement – Page 13 

 9.6 Notices. All communications, notices and disclosures required or permitted by
this Agreement shall be in writing and shall be deemed to have been given when delivered personally, by messenger or by overnight delivery service (if during normal business hours or the next Business Day, if not during normal business hours), or
when mailed by registered or certified United States mail, postage prepaid, return receipt requested, or when received via telecopy, telex or other electronic transmission (if during normal business hours or the next Business Day, if not during
normal business hours), in all cases addressed to the person for whom it is intended at his address set forth below or to such other address as a Party shall have designated by notice in writing to the other Party in the manner provided by this
Section 9.6. 
 9.7 Counterparts. This Agreement may be executed in several counterparts, each of which shall be
deemed an original, but such counterparts shall together constitute but one and the same Agreement. 
 9.8 Specific
Performance. The Parties hereto agree that irreparable damage would occur in the event any of the provisions of this Agreement were not performed in accordance with the terms hereof and that the Parties shall be entitled to specific performance
of the terms hereof, plus attorneys’ fees or, in the alternative, any other remedy at law or equity. 
 9.9
Severability. If any provision, clause or part of this Agreement, or the application thereof under certain circumstances, is held invalid, the remainder of this Agreement, or the application of such provision, clause or part under other
circumstances, shall not be affected thereby. 
 9.10 No Third-Party Reliance. No third party is entitled to rely on or
enforce any of the representations, warranties and agreements contained in this Agreement, and the Company, Rex, and Stonehenge assume no liability or obligation to any third party because of any reliance on the representations, warranties and
agreements of the Company, Rex, or Stonehenge contained in this Agreement. 
  

 Contribution Agreement – Page 14 

 IN WITNESS WHEREOF, the Parties have executed this Contribution Agreement as of the date first above
written. 
  

					
	 REX:
  
 R.E. Gas Development, LLC
	 		 	 STONEHENGE:
  
 Stonehenge Energy Resources, L.P.

			
	/s/ Benjamin W. Hulburt	 		 	/s/ Charles Wilkinson
	 Name: Benjamin W. Hulburt
 Title: President and Chief Executive Officer
	 		 	 Name: Charles Wilkinson
 Title: President

			
	 COMPANY:
  
 Keystone Midstream Services, LLC
	 		 	
			
	/s/ Charles Wilkinson	 		 	 
	 Name: Charles Wilkinson
 Title:
President of Stonehenge Energy
 Resources, L.P., Stonehenge is Manager of
 Keystone Midstream Services, LLC
	 		 	

 APPENDIX A 
 DEFINITIONS 
 “AAA” is defined in
Section 9.4(c). 
 “Affiliate” means, with respect to any person, any other person that directly, or indirectly
through one or more intermediaries, controls, is controlled by, or is under common control with, such person. 
 “Agreement” is defined in the introductory paragraph. 
 “Assumed Liabilities” is
defined in Section 2.3. 
 “Basket” is defined in Section 7.2. 
 “Business Day” means any day other than (i) a Saturday or Sunday or (ii) a day on which commercial banks in New York, New
York or Pittsburgh, Pennsylvania, are closed. 
 “Claim” means any existing or threatened future claim, demand, suit,
action, investigation, proceeding, governmental action or cause of action of any kind or character (in each case, whether civil, criminal, investigative or administrative), known or unknown, under any theory, including those based on theories of
contract, tort, statutory liability, strict liability, employer liability, premises liability, products liability, breach of warranty or malpractice. 
 “Closing” is defined in Section 3.1. 
 “Closing Date” is defined in
Section 3.1. 
 “Company” is defined in the introductory paragraph. 
 “Contributed Assets” means the Rex Contributed Assets and the Stonehenge Contributed Assets. 
 “Dispute” is defined in Section 9.4(a). 
 “Dispute Party” is defined in Section 9.4(a). 
 “Encumbrance” means any mortgage, pledge, charge, hypothecation, claim, easement, right of purchase, security interest, deed of trust, conditional sales agreement, encumbrance, interest, option, lien, right of first
refusal, right of way, defect in title, encroachments or other restriction, whether or not imposed by operation of Law, any voting trust or voting agreement, stockholder agreement or proxy. 
 “Governmental Entity” means any Federal, state, local or foreign court or governmental agency, authority or instrumentality or
regulatory body. 
 “Knowledge” means the actual knowledge after reasonable investigation of the following individuals:
(i) in the case of Rex, Benjamin Hulburt, Tim Beattie, and Melissa Hamsher; and (ii) in the case of Stonehenge Charles Wilkinson, Mike Brinkmeyer, and Gary Davis. 
  

 Appendix A – Page 1 

 “Laws” means all statutes, laws, rules, regulations, Orders, ordinances, writs,
injunctions, judgments and decrees of all Governmental Entities, including, without limitation, all laws pertaining to health and safety, and the protection of the environment. 
 “LLC Agreement” is defined in the Recitals. 
 “Losses” means Claims, judgments, losses, liabilities, damages, costs and expenses (including, but not limited to, reasonable attorneys’ fees). 
 “Order” means any order, writ, injunction, decree, compliance or consent order or decree, settlement agreement, schedule and similar binding legal agreement issued by or entered
into with a Governmental Entity. 
 “Party” is defined in the introductory paragraph. 
 “Permitted Encumbrances” means (i) statutory liens for current taxes or assessments not yet due or delinquent or the validity
of which are being contested in good faith by appropriate proceedings and for which the contributing Party will remain responsible; (ii) mechanics’, carriers’, workers’, repairmen’s, landlord’s and other similar liens
imposed by law arising or incurred in the ordinary course of business with respect to charges not yet due and payable and for which the contributing Party will remain responsible; and (iii) such other encumbrances, if any, which were not
incurred in connection with the borrowing of money or the advance of credit and which do not materially detract from the value of or interfere with the present use, or any use presently anticipated by the Company, of the property subject thereto or
affected thereby, and including without limitation capital leases. 
 “Pipeline Option” means the right granted to
Keystone by Rex, to be exercised at Keystone’s sole election, to purchase the Pipelines for $1.00 on a date that is not more than three years from the Closing Date as such right is set forth in the Pipeline Option Agreement. 
 “Pipelines” means those certain natural gas gathering pipelines described on Schedule 1 attached hereto and including
(i) all Rights of Way, (ii) all of Rex’s equipment, machinery, fixtures and other tangible personal property and improvements used or held for use primarily in connection with the operation of such pipelines, excluding automotive
equipment, and (iii) the Rex Permits. The Pipelines do not include Rex’s existing refrigeration plant and all pipelines, fixtures and equipment downstream from such plant, including, but not limited to the Dominion tap site and M/R
station. 
 “Plant” means that certain skid-mounted cryogenic gas processing plant commonly referred to as
“Sarsen” and all of Stonehenge’s equipment, machinery, fixtures and other tangible personal property and improvements used or held for use primarily in connection with the operation of such plant, excluding automotive equipment.

 “Plant Purchase Price” is defined in Section 1.2. 
 “Plant Site” means that certain tract of land described on Schedule 2 attached hereto. 
 “Rex” is defined in the introductory paragraph. 
  

 Appendix A – Page 2 

 “Rex Contributed Assets” means Rex’s 16.3% undivided interest in the Plant
acquired pursuant to this Agreement. 
 “Rex Permits” is defined in Section 4.11. 
 “Rex Retained Liabilities” means all liabilities and obligations of Rex arising from or relating to the Pipelines, whether such
liabilities or obligations relate to payment, performance or otherwise, other than the Assumed Liabilities. 
 “Rights of
Way” means all real property, leases, licenses, rights-of-way, and easements related to the Pipelines or necessary for the location, use, occupancy, maintenance, repair, replacement and removal of the Pipelines, and which are described
on Schedule 5. 
 “Stonehenge” is defined in the introductory paragraph. 
 “Stonehenge Contributed Assets” means Stonehenge’s 83.7% undivided interest in the Plant. 
 “Stonehenge Retained Liabilities” means all liabilities and obligations of Stonehenge arising from or relating to the Plant, whether
such liabilities or obligations relate to payment, performance or otherwise, other than the Assumed Liabilities. 
 “Tax
Returns” is defined in Section 4.13(a). 
 “Taxes” means any and all taxes, levies, imposts, duties,
assessments and withholdings imposed or required to be collected by or paid over to any Governmental Entity, including any interest, penalties, fines, assessments or additions imposed with respect to the foregoing. 
  

 Appendix A – Page 3 

 Exhibit A 
 Form of Partial Plant Assignment, Conveyance and Bill of Sale 

 PARTIAL PLANT ASSIGNMENT, CONVEYANCE AND BILL OF SALE 
 This PARTIAL PLANT ASSIGNMENT, CONVEYANCE AND BILL OF SALE (“Assignment”) is executed this 21st day of December, 2009, and is from STONEHENGE ENERGY RESOURCES,
L.P., a Delaware limited partnership (“Seller”) to R.E. GAS DEVELOPMENT, LLC, a Delaware limited liability company (“Buyer”). Seller and Buyer each may be referred to in this Assignment individually as a “Party”
and collectively as the “Parties.” 
 BACKGROUND 
 Pursuant to that certain Contribution Agreement, dated December 21, 2009 (the “Agreement”), by and between Seller, Buyer and Keystone
Midstream Services, LLC, Seller has agreed to sell, assign, convey, transfer and deliver the Assets (as defined below) to Buyer, and Buyer has agreed to purchase and acquire such Assets from Seller, all as more fully described in the Agreement.

 NOW, THEREFORE, in consideration of the foregoing premises and for other good and valuable consideration, the receipt and adequacy of which
are hereby acknowledged, the Parties hereby agree as follows: 
 ARTICLE I 
 ASSIGNMENT 
 1.1. Assignment. For good and valuable consideration as set forth in the Agreement, the receipt and sufficiency of which each Party hereby acknowledges, Seller hereby grants, transfers, bargains, conveys, and assigns to Buyer a 16.3%
undivided interest in and to that certain skid-mounted cryogenic gas processing plant commonly referred to as “Sarsen” and all of Stonehenge’s equipment, machinery, fixtures, and other tangible personal property and improvements used
or held for use primarily in connection with the operation of such plant (the “Assets”). 
 ARTICLE II

 MISCELLANEOUS 
 2.1. Governing Agreement. Although this Assignment reflects the complete and final transfer of the Assets, this Assignment is expressly made subject to the terms and provisions of the Agreement.
The delivery of this Assignment shall not affect, enlarge, diminish, or otherwise impair any of the representations, warranties, covenants, conditions, indemnities, terms, or provisions of the Agreement, and all of the representations, warranties,
covenants, conditions, indemnities, terms, and provisions contained in the Agreement shall survive the delivery of this Assignment to the extent, and in the manner, set forth in the Agreement. In the event of a conflict between the terms and
provisions of this Assignment and the terms and provisions of the Agreement, the terms and provisions of the Agreement shall govern and control. 
 2.2. Further Assurances. The Parties agree to take all such further actions and to execute, acknowledge, and deliver all such further documents as are necessary or useful to more effectively
convey, transfer to or vest in Buyer the Assets or to better enable Buyer to realize upon or otherwise enjoy any of the Assets or to carry into effect the intent and purposes of the Agreement and this Assignment. 

 2.3. Successors and Assigns. The provisions of this Assignment shall bind and inure
to the benefit of Seller and Buyer and their respective successors and assigns. 
 2.4. GOVERNING LAW; JURISDICTION AND
VENUE. THIS ASSIGNMENT AND THE LEGAL RELATIONS BETWEEN SELLER AND BUYER HEREUNDER SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF PENNSYLVANIA, WITHOUT REGARD TO THE CONFLICTS OF LAW RULES THEREOF. 
 2.5. Captions. The captions and article and section numbers in this Assignment are for convenience only and shall not be considered a
part of or affect the construction or interpretation of any provision of this Assignment. 
 2.6. Counterparts. This
Assignment may be executed in one or more originals, but all of which together shall constitute one and the same instrument. 
 [Remainder of Page Intentionally Left Blank 
 Signature Page Follows] 

 This Assignment is executed on the date set forth above, to be effective for all purposes as
of the date set forth above. 
  

									
	 SELLER:
  
 STONEHENGE ENERGY RESOURCES, L.P.
	 		 	 BUYER:
  
 R.E. GAS DEVELOPMENT, LLC

					
	By: 	 	 	 		 	By: 	 	 
	Name:	 	Charles Wilkinson	 		 	Name:	 	Benjamin W. Hulburt
	Title:	 	President	 		 	Title:	 	President and Chief Executive Officer

 Exhibit B 
 Form of Rex Assignment and Assumption Agreement 

 ASSIGNMENT AND ASSUMPTION AGREEMENT 
 (R.E. GAS) 
 This ASSIGNMENT AND ASSUMPTION AGREEMENT (“Assignment”) is executed this 21st day of December, 2009, and is from R.E. GAS DEVELOPMENT, LLC, a Delaware limited liability company (“Assignor”) to KEYSTONE MIDSTREAM SERVICES, LLC, a Delaware limited liability company
(“Assignee”). Assignor and Assignee each may be referred to in this Assignment individually as a “Party” and collectively as the “Parties.” 
 BACKGROUND 
 Pursuant to that certain Contribution Agreement, dated
December __, 2009 (the “Agreement”), by and among Assignor, Assignee and Stonehenge Energy Resources, L.P., Assignor has agreed to assign, convey, transfer and deliver the Assets (as defined below) to Assignee, and Assignee has
agreed to acquire such Assets from Assignor and assume the liabilities and obligations with respect thereto, all as more fully described in the Agreement. 
 NOW, THEREFORE, in consideration of the foregoing premises and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Parties hereby agree as follows:

 ARTICLE I 
 ASSIGNMENT; ASSUMPTION 
 1.1. Assignment. For good and valuable
consideration as set forth in the Agreement, the receipt and sufficiency of which each Party hereby acknowledges, Assignor hereby grants, transfers, bargains, conveys, and assigns to Assignee all of its right, title and interest in and to following
assets (the “Assets”): 
 (a) a 16.3% undivided interest in and to that certain skid-mounted
cryogenic gas processing plant commonly referred to as “Sarsen” and the equipment, machinery, fixtures, and other tangible personal property and improvements used or held for use primarily in connection with the operation of such plant.

 1.2. Assumption. Assignee hereby assumes and agrees to pay, perform and discharge when due the Assumed Liabilities, as
set forth in the Agreement; and, Assignor agrees to pay, perform or discharge the Rex Retained Liabilities, as set forth in the Agreement. 

 ARTICLE II 
 MISCELLANEOUS 
 2.1. Governing Agreement.
Although this Assignment reflects the complete and final transfer of the Assets, this Assignment is expressly made subject to the terms and provisions of the Agreement. The delivery of this Assignment shall not affect, enlarge, diminish, or
otherwise impair any of the representations, warranties, covenants, conditions, indemnities, terms, or provisions of the Agreement, and all of the representations, warranties, covenants, conditions, indemnities, terms, and provisions contained in
the Agreement shall survive the delivery of this Assignment to the extent, and in the manner, set forth in the Agreement. In the event of a conflict between the terms and provisions of this Assignment and the terms and provisions of the Agreement,
the terms and provisions of the Agreement shall govern and control. 
 2.2. Further Assurances. The Parties agree to take
all such further actions and to execute, acknowledge, and deliver all such further documents as are necessary or useful to more effectively convey, transfer to or vest in Assignee the Assets or to better enable Assignee to realize upon or otherwise
enjoy any of the Assets or to carry into effect the intent and purposes of the Agreement and this Assignment. 
 2.3.
Successors and Assigns. The provisions of this Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 
 2.4. GOVERNING LAW; JURISDICTION AND VENUE. THIS ASSIGNMENT AND THE LEGAL RELATIONS BETWEEN ASSIGNOR AND ASSIGNEE HEREUNDER SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE
OF PENNSYLVANIA, WITHOUT REGARD TO THE CONFLICTS OF LAW RULES THEREOF. 
 2.5. Exhibits. All exhibits and schedules
attached hereto are hereby made a part hereof and incorporated herein by this reference. References in such exhibits and schedules to instruments on file in the public records are notice of such instruments for all purposes. Unless provided
otherwise, all recording references in such exhibits and schedules are to the appropriate records of the counties in which the Assets are located. 
 2.6. Defined Terms. Any capitalized term not otherwise defined in this Assignment shall have the meaning set forth for such term in the Agreement. 
 2.7. Captions. The captions and article and section numbers in this Assignment are for convenience only and shall not be considered a
part of or affect the construction or interpretation of any provision of this Assignment. 
 2.8. Counterparts. This
Assignment may be executed in one or more originals, but all of which together shall constitute one and the same instrument. 

 This Assignment is executed on the date set forth above, to be effective for all purposes as
of the date set forth above. 
  

									
	 ASSIGNOR:
  
 R.E. GAS DEVELOPMENT, LLC
	 		 	 ASSIGNEE:
  
 KEYSTONE MIDSTREAM SERVICES, LLC

					
	By:	 	 	 		 	By:	 	 
	Name:	 	Benjamin W. Hulburt	 		 	Name:	 	Charles Wilkinson
	Title:	 	President and Chief Executive Officer	 		 	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC

 Exhibit C 
 Form of Stonehenge Assignment and Assumption Agreement 

 ASSIGNMENT AND ASSUMPTION AGREEMENT 
 (STONEHENGE) 
 This ASSIGNMENT AND ASSUMPTION AGREEMENT (“Assignment”) is executed this 21st day of December, 2009, and is from STONEHENGE ENERGY RESOURCES, L.P., a Delaware limited partnership (“Assignor”) to KEYSTONE MIDSTREAM SERVICES, LLC, a Delaware limited liability
company (“Assignee”). Assignor and Assignee each may be referred to in this Assignment individually as a “Party” and collectively as the “Parties.” 
 BACKGROUND 
 Pursuant to
that certain Contribution Agreement, dated December 21, 2009 (the “Agreement”), by and between Assignor, Assignee and R.E. Gas Development, LLC, Assignor has agreed to assign, convey, transfer and deliver the Assets (as defined
below) to Assignee, and Assignee has agreed to acquire such Assets from Assignor and assume the liabilities and obligations with respect thereto, all as more fully described in the Agreement. 
 NOW, THEREFORE, in consideration of the foregoing premises and for other good and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, the Parties hereby agree as follows: 
 ARTICLE I 
 ASSIGNMENT; ASSUMPTION 
 1.1. Assignment. For
good and valuable consideration as set forth in the Agreement, the receipt and sufficiency of which each Party hereby acknowledges, Assignor hereby grants, transfers, bargains, conveys, and assigns to Assignee all of its right, title and interest in
and to that certain skid-mounted cryogenic gas processing plant commonly referred to as “Sarsen” and the equipment, machinery, fixtures, and other tangible personal property and improvements used or held for use primarily in connection
with the operation of such plant (the “Assets”). 
 1.2. Assumption. Assignee hereby assumes and agrees
to pay, perform and discharge when due the Assumed Liabilities, as set forth in the Agreement; and, Assignor agrees to pay, perform or discharge the Stonehenge Retained Liabilities, as set forth in the Agreement. 
 ARTICLE II 
 MISCELLANEOUS 
 2.1. Governing Agreement. Although this Assignment reflects the complete and final
transfer of the Assets, this Assignment is expressly made subject to the terms and provisions of the Agreement. The delivery of this Assignment shall not affect, enlarge, diminish, or otherwise impair any of the representations, warranties,
covenants, conditions, indemnities, terms, or provisions of the Agreement, and all of the representations, warranties, covenants, conditions, indemnities, terms, and provisions contained in the Agreement shall survive the delivery of this Assignment
to the extent, and in the manner, set forth in the Agreement. In the event of a conflict between the terms and provisions of this Assignment and the terms and provisions of the Agreement, the terms and provisions of the Agreement shall govern and
control. 

 2.2. Further Assurances. The Parties agree to take all such further actions and to
execute, acknowledge, and deliver all such further documents as are necessary or useful to more effectively convey, transfer to or vest in Assignee the Assets or to better enable Assignee to realize upon or otherwise enjoy any of the Assets or to
carry into effect the intent and purposes of the Agreement and this Assignment. 
 2.3. Successors and Assigns. The
provisions of this Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 
 2.4. GOVERNING LAW; JURISDICTION AND VENUE. THIS ASSIGNMENT AND THE LEGAL RELATIONS BETWEEN ASSIGNOR AND ASSIGNEE HEREUNDER SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE
OF PENNSYLVANIA, WITHOUT REGARD TO THE CONFLICTS OF LAW RULES THEREOF. 
 2.5. Exhibits. All exhibits and schedules
attached hereto are hereby made a part hereof and incorporated herein by this reference. References in such exhibits and schedules to instruments on file in the public records are notice of such instruments for all purposes. Unless provided
otherwise, all recording references in such exhibits and schedules are to the appropriate records of the counties in which the Assets are located. 
 2.6. Defined Terms. Any capitalized term not otherwise defined in this Assignment shall have the meaning set forth for such term in the Agreement. 
 2.7. Captions. The captions and article and section numbers in this Assignment are for convenience only and shall not be considered a
part of or affect the construction or interpretation of any provision of this Assignment. 
 2.8. Counterparts. This
Assignment may be executed in one or more originals, but all of which together shall constitute one and the same instrument. 

 This Assignment is executed on the date set forth above, to be effective for all purposes as
of the date set forth above. 
  

									
	 ASSIGNOR:
  
 STONEHENGE ENERGY RESOURCES, L.P.
	 		 	 ASSIGNEE:
  
 KEYSTONE MIDSTREAM SERVICES, LLC

					
	By:	 	 	 		 	By:	 	 
	Name:	 	Charles Wilkinson	 		 	Name:	 	Charles Wilkinson
	Title:	 	President	 		 	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC

 Exhibit D 
 Form of Certificate of Non-Foreign Status 

 CERTIFICATE OF NON-FOREIGN STATUS 
 Section 1445 of the Internal Revenue Code provides that a transferee of a U.S. real property interest must withhold tax if the
transferor is a foreign person. For U.S. tax purposes (including Section 1445), the owner of a disregarded entity (which has legal title to a U.S. real property interest under local law) will be the transferor of the property, rather than the
disregarded entity. R.E. Gas Development, LLC, a Delaware limited liability company (“Seller”) is a disregarded entity as defined in Treasury Regulation Section 1.1445-2(b)(2)(iii). The sole member of Seller is Rex Energy Corporation
(hereinafter “Transferor”) which has elected to be treated as a corporation for U.S. tax purposes. To inform the transferee that withholding of tax is not required upon the disposition of a U.S. real property interest by Transferor through
Seller, the undersigned hereby certifies under penalties of perjury the following on behalf of Transferor: 
  

	 	1.	Transferor is not a foreign corporation, foreign partnership, foreign trust, or foreign estate (as those terms are defined in the Internal Revenue Code and Income Tax
Regulations) nor a nonresident alien for U.S. income tax purposes; 

  

	 	2.	Transferor is not a disregarded entity as defined in Treasury Regulation Section 1.1445-2(b)(2)(iii). 

  

	 	3.	Transferor’s U.S. employer identification number is 20-8814402; and 

  

	 	4.	Transferor’s office address is 476 Rolling Ride Drive, Suite 300, State College, Pennsylvania 16801. 

 Transferor understands that this certification may be disclosed to the Internal Revenue Service by transferee and that any false statement
contained herein could be punished by fine, imprisonment, or both. 
 Under penalties of perjury I declare that I have examined
this certification and to the best of my knowledge and belief it is true, correct and complete, and I further declare that I have authority to sign this document on behalf of Transferor. 
  

									
	 Rex Energy Corporation,
 a Delaware corporation
	 		 	
					
	By: 	 	 	 		 		 	Date: December 21, 2009
		 	 Name: Benjamin W. Hulburt
 Title: President and Chief Executive Officer
	 		 		 	

					
	 THE STATE OF PENNSYLVANIA
	  		  	§            
		  		  	§            
	 COUNTY OF CENTRE
	  	§            	  	

 This instrument was acknowledged before me on the 21st day of December, 2009 by Benjamin W. Hulburt, the President and
Chief Executive Officer of Rex Energy Corporation, a Delaware corporation, on behalf of said corporation. 

	
	
	  
	Notary Public, State of Pennsylvania

 Exhibit E 
 Form of Site Lease 

 SITE LEASE AGREEMENT 
 THIS SITE LEASE AGREEMENT (“Lease”) is made and entered into as of the __ day of __________________, 20__, (the
“Commencement Date”) by and between R.E. GAS DEVELOPMENT, LLC, a Delaware limited liability company (“Landlord”), and KEYSTONE MIDSTREAM SERVICES, LLC, a _______________ limited liability company
(“Tenant”). 
 WINTESSETH: 
 WHEREAS, Landlord owns certain land located in Forward Township and Connoquennessing Township, Butler County, Pennsylvania and commonly known as Parcel 2 in the Magill Plan of Lots recorded in the
Office of the Butler County Recorder at Instrument Number ________________ (the “Property”); 
 WHEREAS,
Tenant desires to lease a portion of the Property as more fully described in Section 1 hereto (the “Premises”) and Landlord desires to lease the Premises to Tenant, all in accordance with the terms and conditions
hereinafter set forth. 
 NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained, and
intending to be legally bound hereby, Landlord and Tenant agree as follows: 
  

	1.	PREMISES, ACCEPTANCE AND TERM 

 (a) Lease of the Premises. Landlord hereby leases to Tenant and Tenant hereby leases from Landlord, the Premises, as follows: 
 (i) Phase I Space. From the Commencement Date, the Premises shall consist of approximately 19.58 acres of the Property, as depicted on Exhibit A attached hereto, together with the southern
one half portion of the Control Building, as shown on Exhibit B attached hereto (the “Phase I Space”). The term the “Control Building” means that certain building located on the Property, as shown on
Exhibit A attached hereto. 
 (ii) Phase II Space. From and after the Phase II Commencement Date
(defined in Section 1 (c)(ii) below), the Premises shall consist of the Phase I Space plus approximately 1.23 acres of the Property, as depicted on Exhibit A attached hereto, together with the northern one half portion of
the Control Building, as shown on Exhibit B attached hereto (the “Phase II Space”). 
 (b)
Acceptance. Tenant has inspected the Premises and is fully familiar with the physical condition thereof. Landlord makes no representation or warranty with respect to the condition of the Premises or its fitness or availability for any
particular use and the Landlord shall not be liable for any latent or patent defect therein. Tenant further acknowledges and agrees that the Premises will be delivered “As Is,” and that the Landlord is not obligated to make any
modification thereto. Tenant shall cause that certain proposed gravel

  

 3 

 
road, as shown on Exhibit A attached hereto (the “Gravel Road”), to be constructed, subject to obtaining Landlord’s prior written consent to the construction contract
and cost for such work. Landlord and Tenant shall equally share in the cost of the construction of the Gravel Road; provided, that Landlord’s share shall not exceed 50% of the cost set forth in the construction contract to which Landlord has
provided its consent. Within thirty (30) days of receipt of an invoice from Tenant, Landlord shall reimburse Tenant for Landlord’s one-half share thereof. 
 (c) Term and Rent Commencement Date. Subject to the terms herein stated, the term of this Lease shall begin on the Commencement Date and end on the Termination Date (the “Term”),
as further set forth below: 
 (i) Phase I Term. Tenant’s lease of the Phase I Space shall commence
on the Commencement Date. 
 (ii) Phase II Term. Tenant’s lease of the Phase II Space shall commence
ninety (90) days after the Gas Processing Plant is operational (the “Phase II Commencement Date”). Upon the request of either party, Landlord and Tenant shall execute a confirmation of the Phase II Commencement Date.

 (iii) Termination Date. This Lease shall be terminated upon the earlier of (x) the termination of
that certain Gas Gathering, Compression and Processing Agreement dated December __, 2009, by and between Landlord and Tenant (“Gas Gathering, Compression and Processing Agreement”); or (y) the date upon which this Lease is
terminated pursuant to Section 7 hereof (the “Termination Date”). 
 In no event shall the Lease
extend beyond the Term, except that Tenant shall have the right to access to the Premises for an additional six months (6) months after the Termination Date for purposes of removing the Gas Processing Plant (as hereinafter defined) and
restoring the Premises in accordance with Section 10(b) herein (the “Removal Period”). During the Removal Period, Tenant shall be bound by and fully perform its obligations under Sections 4, 5(b), 5(c) and 6
herein. The provision of this Section shall survive the termination or expiration of this Lease. 
 (d) Access/Use.

 Use. The Premises shall be used solely for the operation of a skid-mounted cryogenic gas processing
plant (commonly known as the Sarsen gas processing plant), including any modifications, expansions or replacements of such skid-mounted cryogenic gas processing plant, together with all buildings, structures and other improvements now or hereafter
erected (to the extent permitted in accordance with the provisions of this Lease) on, over or under the Premises and related to such gas processing plant, including any and all walkway and road improvements, parking areas and facilities, landscaping
improvements of whatever nature, utility lines, natural gas pipelines, and the appurtenances to all of the foregoing (collectively, the “Gas Processing Plant”). 
 (iv) Tenant’s Rights of Access. Tenant shall have the right of vehicular access to and from the Premises and
Prospect Road via the existing roadways located within the Premises and over the Gravel Road. Tenant shall have the right to utilize any and all

  

 4 

 
existing utility lines, pipelines, water wells, and sewage and other facilities located on the Property serving the Premises. The Premises and Tenant’s right of access are subject to any and
all rights-of-way, easements, restrictions, reservations, exceptions, rights, agreements and any other matters of either public record or which would be apparent upon an accurate survey or inspection of the Premises and Property. 
 (v) Landlord’s Right of Access. From and after the Phase II Commencement Date, (x) Landlord shall have the
right to access the Premises for a period of six (6) months for purposes of removing the refrigeration plant located within the Phase II Space, and all personalty and fixtures associated therewith; and (y) in addition to Landlord’s
rights of access set forth in Section 9(c) hereof, Landlord shall have the right to access the tap site and M&R station, as depicted on Exhibit A attached hereto, over and through the Premises. 
 (vi) Common Areas. Prior to the Phase II Commencement Date, Tenant shall have the non-exclusive right to use the areas
of the Control Building that are not included in the Premises but are reasonably necessary for Tenant’s access to the Control Building (the “Common Areas”); provided, however, that Tenant’s use of such Common Areas shall
be in common with Landlord or its designees and subject to such reasonable rules and regulations governing the use as Landlord may from time to time prescribe, including, without limitation, regulations relating to the security of the Control
Building. 
  

	2.	RENT 

 (a) Rent for the
Premises. 
 (i) Phase I Rent. Tenant shall pay to Landlord, commencing on the Commencement Date
(“Rent Commencement Date”), for and until the Termination Date, the sum of [REDACTED]* per annum (the “Phase I Rent”), payable in equal monthly installments of [REDACTED]*. 
 (ii) Phase II Rent Tenant shall pay to Landlord, commencing on the Phase II Commencement Date, for and until the
Termination Date, Phase I Rent plus the sum of [REDACTED]* per annum (the “Phase II Rent”), payable in equal monthly installments of [REDACTED]*, for a total annual rent of [REDACTED]*, payable in equal
monthly installments of [REDACTED]*. The term “Rent” shall collectively refer to Phase I Rent and Phase II Rent. 
 (iii) Each installment of Rent shall be paid monthly by Tenant to Landlord without any prior notice, demand or set-off, on the first day of each month during the Term. Any payment for a portion of a month
shall be pro-rated based upon a thirty (30) day month. 
 (b) Place of Payment. Unless and until notified otherwise
by Landlord, all Rent payments and all other amounts payable to Landlord hereunder shall be paid by check mailed or delivered to Landlord at its address for Notices as set forth in Section 11(a) hereof. 
  

 5 

	3.	UTILITIES, TAXES AND ASSESSMENT 

 (a) Payment. Landlord shall pay all taxes and assessments relating to the Property; provided, however that Tenant shall pay all taxes (real and personal) and assessments allocable to the Premises and the Gas Processing Plant, and
Tenant shall reimburse Landlord for that portion of taxes and assessments on the Property which are attributable to the Premises and the Gas Processing Plant; such reimbursement to occur within fifteen (15) days of receipt by Tenant of an
invoice from Landlord therefor. In the event such Gas Processing Plant Premises and the Gas Processing Plant are not separately assessed, the amount of the taxes and assessments allocable to the Premises and the Gas Processing Plant shall be
determined based upon the relative fair market value of the Premises and the Gas Processing Plant, on the one hand, and the total the fair market value of the property assessed, on the other hand (all such taxes and assessments for which Tenant is
responsible under this Section 3(a) are hereinafter collectively referred to as “Impositions”). 
 (b) Exceptions. Nothing contained in this Lease shall be deemed or construed to require Tenant to pay or discharge: (i) any tax upon the income or profits of Landlord; or (ii) any franchise, gross receipts, revenue,
inheritance or estate taxes, income or profit, gift or payroll taxes which may be levied against the estate or interest of Landlord, however such taxes may be designated, even though such taxes may become a lien against the Property. 
 (c) Right to Contest. Tenant may, if it shall desire, at its sole cost and expense, contest the validity or amount of any Imposition,
in whole or in part, by an appropriate proceeding diligently conducted in good faith. Tenant shall only conduct such a contest after payment of the challenged Imposition unless Tenant shall give Landlord prior notice to the effect that, under the
applicable law, the payment of such Imposition would, in the opinion of Tenant’s counsel (and if the law thus provides), prejudice or render moot Tenant’s contest, and in such case the claimed excess shall be deposited by Tenant in an
interest-bearing account until it must be paid to avoid penalties or other adverse effects, in which event Tenant shall use such funds to pay the Imposition. 
 (d) Taxes on Personalty. Tenant shall pay or cause to be paid all property taxes on the fixtures, furniture and other personal property of Tenant. 
 (e) Utilities and Utility Charges. Tenant shall be solely responsible for installing, and arranging for and maintaining satisfactory
utility lines and services to and for the operation of the Gas Processing Plant, and Tenant shall pay promptly all deposits, rents, costs, tap-in fees and other charges and fees for water service, sewer service, gas, electricity, light, heat, steam,
power, telephone and other communication services, and any and all other utility services desired, rendered or supplied to or in connection with the Premises and the Gas Processing Plant, provided, that, prior to the Phase II Commencement Date,
Tenant shall pay for the cost of all of the utilities serving the Premises and Gas Processing Plant, including its proportionate share of the cost of utilities servicing the Control Building as such share is calculated by Landlord using reasonable
allocation methodologies. Tenant shall, at its sole cost and expense, procure and keep in effect all necessary permits, licenses and other authorizations required by any federal, state, county, municipal and local governments, and all departments,
commissions, boards, bureaus, agencies and offices thereof, having or claiming jurisdiction (“Governmental Authority”) for the lawful and proper installation and maintenance of the wires, pipes, shafts, ducts, conduits, tubes and
other equipment and appliances for use in supplying any such services in connection with the operation of the Gas Processing Plant. 
  

 6 

	4.	COMPLIANCE WITH LAWS 

 (a)
Compliance with Laws and Private Restrictions. Tenant, at its sole cost and expense, shall comply in all material respects with and cause the Premises to conform in all material respects to all present or future requirements, administrative
and judicial orders, laws, statutes, ordinances, rules or regulations (collectively, “Laws”) of any Governmental Authority pertaining to Tenant’s use thereof, including the making of necessary repairs, replacements,
restorations, alterations and additions. Tenant shall also procure, pay for and maintain all permits, licenses, approvals and other authorizations necessary for the lawful use, operation, occupancy and maintenance of the Premises, or any part
thereof, in accordance with the terms of this Lease. 
 (b) Covenants and Restrictions. Tenant shall not use, occupy or
improve the Premises, or permit the Premises or any part thereof to be used, occupied or improved, so as to (i) violate any terms, conditions or covenants of any recorded plats, easements, restrictions, covenants or agreements affecting the
Property or of any documents of which Tenant has knowledge (“Private Restrictions”), or (ii) cause waste to the Property. In addition, Tenant shall at all times comply with all affirmative obligations, if any, imposed on the
owner of the Property by any Private Restrictions or public laws. Landlord shall not voluntarily enter into any Private Restrictions after the Effective Date without Tenant’s prior written consent, which consent shall not be unreasonably
withheld, conditioned or delayed. 
  

	5.	ALTERATIONS, REPAIRS, CONSTRUCTION STANDARDS AND LIENS 

 (a) Alterations, Repair and Maintenance. Tenant, at its sole cost and expense, shall keep the Premises and the Gas Processing Plant in good condition, reasonable wear and tear excepted. Tenant
shall, with all reasonable promptness, make all repairs, replacements and renewals, including (i) all structural repairs, necessary to maintain the same in good order and repair and (ii) the initial earth moving and soil testing necessary
to ready the Phase I Space for construction and installation of the Gas Processing Plant. In addition, Tenant will repair and maintain the Gravel Road. Landlord and Tenant shall equally share in the reasonable and actual cost of the maintenance and
repair of the Gravel Road. Within thirty (30) days of receipt of an invoice from Tenant, Landlord shall reimburse Tenant for Landlord’s one-half share thereof. 
 (b) Construction Work. Tenant, at its sole cost and expense shall have the right to install equipment and fixtures in the Gas Processing Plant and to make any additions, alterations, changes and
replacements (whether structural or non-structural) in or to the Phase I Space and/or Phase II Space (collectively, the “Construction Work”). in all cases subject to the following: 
 (i) Permits and Authorizations. No Construction Work shall be undertaken until all permits and authorizations of all
Governmental Authorities required in connection with the Construction Work shall have been obtained by Tenant, at Tenant’s sole cost and expense. 
  

 7 

 (ii) Landlord Cooperation. Landlord shall promptly execute, deliver
and file any and all instruments and documents required to be obtained by or in the name of Landlord to facilitate and effect any permits for Construction Work. Landlord shall also grant or consent to (i) additional utility easements over,
upon, across and through the Property or any part thereof as and when requested by Tenant from time to time, and any amendments or modifications thereto, and (ii) reciprocal easement, operation and construction agreements, and any amendments or
modifications thereto, provided that in each instance the same (1) does not extend beyond the scheduled expiration of the Term, (2) does not impose upon Landlord any obligation in personam, (3) does not permit or authorize any
construction or other act or thing which is inconsistent with or would violate any provision of this Lease, and (4) does not unreasonably interfere with Landlord’s use and development of its Property (exclusive of the Premises) and is in a
location approved by Landlord in its reasonable discretion. 
 (c) Mechanic’s Liens. All persons are hereby placed
on notice that the interest of the Landlord in the Premises shall not be subject to liens for improvements made by or for the Tenant, and that the Tenant has no right, power or authority to subject the Premises or any part thereof, or the
Landlord’s interest therein, to any mechanics’, laborers’, materialmen’s or similar liens provided for in present or future law. Tenant shall indemnify the Landlord against and hold the Landlord harmless from all costs, claims,
damages or actions resulting from the filing, enforcement or existence of any such liens, such obligation to survive the expiration or termination of this Lease. 
  

	6.	INDEMNIFICATION; INSURANCE AND DESTRUCTION OF PREMISES 

 (a) Indemnity. 
 (i) General Indemnification -
Tenant. Tenant shall indemnify, defend, and hold Landlord and Landlord’s affiliates, shareholders, directors, officers, employees, agents and contractors, and their respective heirs, personal representatives, successors and assigns
(collectively, “Landlord Indemnitees”) harmless from and against all damages, losses, penalties, fines and expenses suffered or paid as a result of any and all claims, demands, suits, causes of action, proceedings, judgments,
administrative and judicial orders and liabilities (including reasonable counsel fees incurred in litigation or otherwise) (collectively, “Claims”) assessed, incurred or sustained by or against any Landlord Indemnitee with respect
to or arising out of or on account of (i) any breach by Tenant or any of Tenant’s members, managers, officers, employees, agents or contractors (collectively, “Tenant Parties”) of Tenant’s warranties, representations,
covenants or agreements hereunder, or (ii) any personal injury, including death of any person, or property damage, sustained by any person or entity where such injury, death or damage is caused or alleged to have been caused, in whole or in
part, by the acts or omissions of the any Tenant Party, or (iii) any violation of any Law by any Tenant Party. 
  

 8 

 (ii) General Indemnification - Landlord. Landlord shall indemnify,
defend, and hold Tenant and Tenant’s affiliates, shareholders, directors, officers, employees, agents and contractors, and their respective heirs, personal representatives, successors and assigns (collectively, “Tenant
Indemnitees”) harmless from and against all Claims assessed, incurred or sustained by or against any Tenant Indemnitee with respect to or arising out of or on account of (i) any breach by Landlord or any of Landlord’s members,
managers, officers, employees, agents or contractors (collectively, “Landlord Parties”) of Landlord’s warranties, representations, covenants or agreements hereunder, or (ii) any personal injury, including death of any
person, or property damage, sustained by any person or entity where such injury, death or damage is caused or alleged to have been caused, in whole or in part, by the acts or omissions of the any Landlord Party, or (iii) any violation of any
Law by any Landlord Party. 
 (iii) Environmental Hazards. 
 (1) For the purpose of this Section 6(a)(iii), the term “Environmental Liabilities” means the
presence or existence in, on, or under the Property, the Premises or any adjoining property owned by Landlord (including, without limitation, the surface or ground water on or under any such property) of any Hazardous Substance (as defined below),
or any environmental condition which poses a substantial present or potential hazard to human health or the environment, or which is subject to regulation under any federal, state or local environmental law, regulation, rule or ordinance, whether
such substance or condition exists or is being discovered before or after the date of this Lease. 
 (2) In
addition to any obligations of Tenant provided for herein, Tenant shall defend, indemnify and hold harmless Landlord and the other Landlord Indemnitees from and against any and all Claims arising out of claims, suits, causes of action, awards of
damages (including natural resource damages), orders (including cease and desist, compliance and clean-up orders, remedial actions or corrective or preventative actions, whether sought or issued by judicial or administrative bodies or through public
or private action), either at law or in equity (including strict liability), relating to Environmental Liabilities which caused or are alleged to have caused personal injury of any type to any Person (including any Tenant Party) or damage of any
type to any property (including, without limitation, the expense of clean-up or other corrective or preventative action at or remediation of the Property or lands or water adjacent thereto) to the extent that such personal injury or property damage
is caused Tenant or any other Tenant Parties. 
 (3) As used herein, “Hazardous Substances”
shall mean any material or substance deemed to be harmful to health or the environment by any law, rule regulation or guidance document, or any material regulated from time to time as a toxic or hazardous waste or substance under any federal, state
or local Law, including, without limitation, any material or substance containing any of the hazardous characteristics or constituents set forth in 40 C.F.R. Sec. 261.30 et seq., as replaced or amended, listed as a hazardous waste pursuant to 40
C.F.R. Sec. 261.30 et seq., as replaced or amended, defined as a “hazardous substance” or a “pollutant” or a “contaminant” in the Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S. C. Sec.
9601 et seq., as amended or replaced (“CERCLA”), or any state or local statute with similar provisions, defined as a toxic or hazardous waste in the Solid Waste Disposal Act, 42 U.S.C. Sec. 6901 et seq., as replaced or amended, or defined
as a hazardous substance under any applicable Pennsylvania Law, or asbestos, polychlorinated biphenyls or petroleum products. 
  

 9 

 (b) Obligations of the Indemnitor and Indemnitee. Any Landlord Indemnitee or Tenant
Indemnitee (collectively, the “Indemnitee”) that proposes to assert the right to be indemnified under this Section 6 with respect to any claim, action, suit or proceeding shall, promptly after receipt of notice of any
such claim or commencement of any such action, suit or proceeding, notify Tenant/Landlord (for purposes of this Section 6, the “Indemnitor”) in writing of the assertion of such claim or commencement of such action, suit
or proceeding, enclosing copies of all applicable papers received; provided, however, that the failure to so notify the Indemnitor shall not relieve a party from any obligation to indemnify under this Section 6 except to the extent the
Indemnitor is actually materially disadvantaged by such failure to give notice. The Indemnitor shall have the right and obligation to assume the defense of any claim, action, suit or proceeding with respect to which indemnification is being sought
under this Section 6 with counsel reasonably satisfactory to the Indemnitee. The Indemnitee shall have the right to employ its own counsel, but the fees and expenses of such counsel shall be at the sole expense of the Indemnitee;
provided, however, that if the Indemnitee reasonably concludes that there are legal defenses available to it that are different from or inconsistent with the defenses available to the Indemnitor and which Indemnitor refuses to assert on
Indemnitee’s behalf after request is made by Indemnitee, then Indemnitee’s separate counsel may participate in the defense of the action at the Indemnitor’s expense. The Indemnitor shall not be liable for any settlement effected
without its prior written consent, which consent shall not be unreasonably withheld, conditioned or delayed. The Indemnitee shall cooperate with the Indemnitor in the defense of any such claim, action, suite or proceeding to the extent reasonably
requested by the Indemnitor, and shall provide all information, evidence, assistance and authority necessary to enable the indemnitor to conduct a proper defense. Both parties shall make witnesses available and to provide any reasonably requested
technical assistance to the other party to pursue or defend any litigation against third parties arising out of or relating to this Lease, whether or not the party upon which such request is made is a party to such litigation. 
 (c) Failure to Defend Action. Should a Indemnitee be entitled to indemnification under Section 6(a) hereof as a result of
a claim by a third party and, after the Indemnitee has complied with the provisions of Section 6(b), the Indemnitor fails to assume the defense of such claim, the Indemnitee shall, at the expense of the Indemnitor, contest or settle such
claim. 
 (d) Survival of Indemnity. The provisions of this Section 6(a) through (c) shall survive the
termination or expiration of this Lease. 
 (e) Tenant’s Insurance. At all times during the Term and the Removal
Period, Tenant shall keep in effect a comprehensive automobile liability insurance policy in an amount of not less than One Million Dollars ($1,000,000), a broad form comprehensive coverage policy or policies of public liability insurance in an
amount of not less than One Million Dollars ($1,000,000) (combined single limit), an umbrella/excess liability policy of insurance in an amount not less than Five Million Dollars ($5,000,000), and a policy of workmen’s

  

 10 

 
compensation/employer’s liability insurance in an amount not less than One Hundred Thousand Dollars ($100,000), which shall provide coverage for third-party liabilities, including the cost
of legal defense, arising from Tenant’s operations and Tenant’s use and tenancy of the Premises or permitted access over and through the Property. Tenant’s insurance policy or policies shall name Landlord as an additional insured.
Certificates of insurance evidencing the required coverage shall be provided to Landlord on even date herewith and upon request at any time and from time to time thereafter. The insurance policies provided pursuant to this Section 6(e)
shall provide that the insurer shall give Landlord notice of cancellation or failure to renew such policies at least thirty (30) days in advance of such cancellation or failure to renew. 
 (f) Landlord’s Insurance; Waiver of Subrogation. Landlord shall relieve Tenant of all liability for loss or damage to
Landlord’s property, including loss of use and/or any deductibles thereof, whether real or personal, and whether due to any act of commission or omission of Tenant, caused by fire and/or the other perils covered by insurance Landlord may
obtain. Landlord’s property coverage will be in the minimum amount of $1,000,000 and will be endorsed to allow for Landlord’s waiver of subrogation as noted herein if the policy does not automatically allow Landlord to waive subrogation.

 (g) Tenant’s Waiver of Subrogation. Tenant shall relieve Landlord of all liability for loss or damage to
Tenant’s property, including loss of use and/or any deductibles thereof, whether real or personal, and whether due to any act of commission or omission of Landlord, caused by fire and/or the other perils covered by the insurance Tenant is
required to obtain in accordance with the terms of this Lease. Tenant’s property coverage will be endorsed to allow for Tenant’s waiver of subrogation as noted herein if the policy does not automatically allow Tenant to waive subrogation.

 (h) Casualty. If the Premises or the Gas Processing Plant are materially damaged by fire or any other cause, Tenant
may terminate this Lease as of the date of such damage by notice to Landlord within thirty (30) days after the date of such damage. If the Premises or the Gas Processing Plant are not materially damaged or if either are materially damaged, but
Tenant does not elect to terminate this Lease, then such damage shall be promptly repaired at the sole cost and expense of Tenant. Until such repairs and restoration are completed, Rent shall continue to be due and Tenant shall not receive any
abatement thereof. 
 (i) Force Majeure. If either party is rendered wholly or partially unable to perform its
obligations under this Lease because of a Force Majeure (as hereinafter defined) event, that party shall be excused from whatever performance is affected by the Force Majeure event to the extent so affected, provided that: 
 (i) the non-performing party, as soon as possible after the occurrence of the inability to perform due to a Force Majeure
event, provides written notice to the other party of the particulars of the occurrence, including an estimation of its expected duration and probable impact on the performance of its obligations hereunder, and continues to furnish timely regular
reports with respect thereto during the period of Force Majeure; 
  

 11 

 (ii) the non-performing party shall exercise all reasonable efforts to
continue to perform its obligations hereunder and to remedy its inability to so perform; 
 (iii) the
non-performing party shall provide the other party with prompt notice of the cessation of the event of Force Majeure giving rise to the excuse from performance; and 
 (iv) no obligation of either party that arose prior to the occurrence of the event of Force Majeure shall be excused as a
result of such occurrence. 
 The burden of proof as to whether an event of Force Majeure has occurred shall be upon the party claiming an event
of Force Majeure. 
 Notwithstanding anything to the contrary contained herein, Tenant shall not be excused (due to an event of Force Majeure)
from paying any installment of Rent when due. 
 As used herein, “Force Majeure” shall mean any cause or causes which wholly or
partly prevent or delay the performance of obligations arising under this Lease and which are not reasonably within the control of the non-performing party, and shall include, without limitation, an act of God or terrorism, nuclear emergency,
explosion, fire, epidemic, landslide, lightning, earthquake, flood or similar cataclysmic occurrence, an act of the public enemy, war, blockage, embargo, insurrection, riot, civil disturbance, strike, labor dispute, lockout or other labor
disturbance, restrictions or restraints imposed by Law, whether federal, state or local. 
  

	7.	DEFAULTS, REMEDIES AND SELF-HELP 

 (a) Events of Default. 
 (i) Tenant. Tenant shall be in default hereunder in the event
that Tenant (1) shall fail to pay any sums due Landlord hereunder on the due date for such payment, which failure continues for a period of ten (10) days after written notice of such non-payment; (2) shall fail to perform any
obligation under this Lease (other than as set forth in subsection (1) of this Section 7(a)(i)), and such failure continues for a period of thirty (30) days after written notice of such non-performance (except when the nature
of Tenant’s obligation is such that more than thirty (30) days are required for its performance, then Tenant shall not be deemed in default if it commences performance within the thirty (30) day period and thereafter diligently
pursues the cure to completion); (3) shall be adjudicated a bankrupt; (4) shall file or have filed against it a petition in bankruptcy, reorganization or similar proceedings under the bankruptcy laws of the United States; (5) shall
have a receiver, permanent or temporary, appointed by a court of competent authority for it or on its behalf; (6) shall request the appointment of a receiver; (7) shall make a general assignment for the benefit of creditors; (8) shall
have its bank accounts, property or receivables attached and such attachment proceedings are not dismissed within a sixty (60) day period; or (9) shall dissolve or liquidate. 
  

 12 

 (ii) Landlord. Landlord shall be in default hereunder in the event
that Landlord fails to do, observe, keep and perform any of the terms, covenants, conditions, agreements or provisions of this Lease required to be done, observed, kept or performed by Landlord, within thirty (30) days after written notice by
Tenant to Landlord of said failure (except when the nature of Landlord’s obligation is such that more than thirty (30) days are required for its performance, then Landlord shall not be deemed in default if it commences performance within
the thirty (30) day period and thereafter diligently pursues the cure to completion. 
 (b) Landlord Remedies. Upon
the occurrence of any one or more of the defaults specified in Section 7(a), Landlord, without notice to Tenant in any instance (except where expressly provided for below), may do any one or more of the following: 
 (i) Cure. Perform, on behalf and at the expense of Tenant, any obligation of Tenant under this Lease which Tenant has
failed to perform beyond any applicable grace or cure periods and of which Landlord shall have given Tenant notice (except in an emergency situation in which no notice is required), the cost of which performance by Landlord, together with interest
thereon at the annual floating rate of interest equal to four (4) percentage points in excess of the prime rate of interest as announced from time to time by Bank of America or its successor from the date of such expenditure, shall be deemed
rent and shall be payable by Tenant to Landlord; 
 (ii) Terminate. Elect to terminate this Lease and the
tenancy created hereby by giving notice of such election to Tenant without any right on the part of Tenant to save the forfeiture by payment of any sum due or by other performance of condition, term, agreement or covenant broken, or elect to
terminate Tenant’s possessory rights and all other rights of Tenant without terminating this Lease, and in either event, at any time thereafter without notice or demand and without any liability whatsoever, re-enter the Premises by force,
summary proceedings or otherwise, and remove Tenant and all other persons and property from the Premises, and store such property in a public warehouse or elsewhere at the cost and for the account of Tenant without resort to legal process and
without Landlord being deemed guilty of trespass or becoming liable for any loss or damage occasioned thereby; and 
 (iii) Other Remedies. Exercise any other legal and/or equitable right or remedy which it may have at law or in equity, including rights of specific performance and/or injunctive relief, where appropriate. 
 (c) Tenant Remedies. In the event of any default by Landlord, Tenant’s exclusive remedy shall be an action for damages (Tenant hereby
waiving the benefit of any laws granting it a lien upon the property of the Landlord and/or upon rent due Landlord), but prior to any such action Tenant will give Landlord written notice specifying such default with particularity, and Landlord shall
thereupon have thirty (30) days in which to cure any such default. Unless and until Landlord fails to so cure any default after such notice Tenant shall not have any remedy or cause of action by reason thereof. 
 (d) In any action to enforce the provisions of this Lease, the prevailing party shall be entitled to an order directing the other party to
pay all costs, expenses and reasonable attorneys’ fees that may be incurred or paid by the prevailing party in successfully enforcing or recovering upon the covenants and agreements in this Lease. 
  

 13 

	8.	CONDEMNATION 

 (a)
Participation in Condemnation. In the event that the Premises, or any part thereof, shall be taken in condemnation proceedings or by exercise of any right of eminent domain or by agreement between Landlord, Tenant and those authorized to
exercise such right (any such matters being hereinafter referred to as a “Taking”), Landlord and Tenant shall have the right to participate in any such condemnation proceedings or agreement for the purpose of permitting each to
protect its respective interest hereunder. Each party so participating shall pay its own fees and expenses in connection therewith. 
 (b) Entire Taking. If any time during the Term there shall be a Taking of the whole of the Premises, this Lease shall terminate on the date of such Taking and the Rent shall be apportioned and paid to the date of such Taking. If at
any time during the Term there shall be a Taking of a material portion of the Premises, then Tenant shall have the right to terminate this Lease as of the date of such Taking and the Rent shall be apportioned and paid as of the date of such Taking.
For the purpose of this Article, a “material portion of the Premises” shall be deemed to have been taken if (i) in the judgment of Landlord and Tenant, reasonably exercised, it will no longer be economically feasible to continue to
operate the Premises for the purpose permitted by Section 1(d) hereof, or (ii) loss of direct access to or from the Premises has occurred. 
 (c) Award for Entire Taking. Except as otherwise herein expressly provided, in the event all or substantially all of the Premises is taken by eminent domain, or sale in lieu thereof, and this Lease
terminates, Landlord and Tenant shall each retain their respective right to seek damages from the condemning authority for loss by each in the fair market value of its interest in the Premises and the Gas Processing Plant thereon, respectively, and
shall cooperate in any legal proceeding required to recover such damages. 
 (d) Award for Partial Taking. If there is a
Taking of less than the whole of the Premises that does not result in a termination of this Lease as provided in Section 8(b) hereof, this Lease shall continue after any such Taking and shall remain unaffected except: 
 (i) Rent Reduction. The Rent shall be reduced by an amount which bears the same proportion to the annual Rent
immediately prior to the partial Taking as the value of the part of the Premises so taken shall bear to the value of the whole Premises immediately prior to such Taking. If the parties do not agree within fifteen (15) days after such taking,
upon the amount of such reduction, each party shall select one appraiser (each appraiser to be MAI certified) within ten (10) days thereafter, the two (2) appraisers shall select a third appraiser (having an MAI certification) and the
three (3) appraisers shall collectively determine the rental values, as described above, within thirty (30) days thereafter, and such decision shall be conclusively binding upon the parties. 
 (ii) Payment to Tenant. The damages to which Tenant is entitled shall be paid to Tenant promptly upon receipt by the
parties, subject to the rights of any mortgagees. 
  

 14 

	9.	ASSIGNMENT, SUBLETTING AND ATTORNMENT 

 (a) Assignment by Tenant. Tenant shall not assign, sublease, mortgage or otherwise transfer (by operation of law or otherwise) the Premises or any part thereof without the prior written consent of
Landlord, which consent may be withheld in Landlord’s sole and absolute discretion. 
 (b) Rights of Landlord.

 (i) Nothing contained in this Lease shall be deemed in any way to limit, restrict or otherwise affect
Landlord’s right to convey its interest in the Premises, subject to this Lease, or to assign its interest in this Lease, or to assign from time to time all or any part of the Rent at any time paid or payable hereunder by Tenant to a transferee
designated by Landlord by notice to Tenant, and in any such case Tenant shall pay the Rent herein provided for, or the portion thereof so assigned, subject to the provisions of this Lease, to Landlord’s designee at the address set forth in any
such notice. 
 (ii) In the event of any such sale or transfer, Tenant and Landlord’s successor shall upon
request of Tenant execute in recordable form and duly record an agreement in form and substance reasonably satisfactory to Tenant whereby Landlord’s rights and obligations are assigned to and assumed by such successor and whereby such successor
shall be in privity of contract with Tenant under this Lease. 
 (c) Access by Landlord. In addition to those rights
reserved in Section 1(d)(iii) hereof, Landlord reserves to itself, its agents, employees, contractors and assigns, the right of access to the Gas Processing Plant and the Premises, upon reasonable prior oral or written notice to Tenant,
except in the event of an emergency, in which case Landlord shall have the right to immediate access but shall promptly notify Tenant of such access. 
 (d) Attornment. If, at any time during the Term of this Lease, Landlord shall be the holder of a leasehold estate covering premises which include the Premises, and if such leasehold shall terminate
or be terminated for any reason, or if, at any time during the Term a mortgage to which this Lease is subordinate shall be foreclosed, Tenant agrees at the election and upon demand of any owner of any portion of the Property which includes the
Premises, or of any mortgagee in possession thereof, or of any holder of a leasehold thereafter affecting any portion of the Premises, or of any purchaser at foreclosure, to attorn, from time to time, to any such owner, mortgagee, holder or
purchaser upon the terms and conditions set forth herein for the remainder of the Term. This Lease shall be subordinate to the lien of any mortgage or mortgages or the lien resulting from any other method of financing or refinancing now or hereafter
in force against the Property and/or the Premises, and to all advances made or hereafter to be made upon the security thereof, resulting from any encumbrance placed or permitted by Landlord. 
 (e) Nonrecourse. Tenant shall look solely to the estate and property of the Landlord in the Property, for the satisfaction of
the Tenant’s remedies for the collection of a judgment (or other judicial process) requiring the payment of money by the Landlord in the event of any

  

 15 

 
default or breach by the Landlord with respect to any term, covenant or condition of the Lease to be observed and/or performed by the Landlord, and no other property or assets of the Landlord or
any agent thereof shall be subject to levy, execution or other enforcement procedure for the satisfaction of the Tenant’s remedies. 
  

	10.	TITLE TO IMPROVEMENTS AND SURRENDER 

 (a) Ownership and Surrender of Improvements. Except for Landlord’s equipment to be removed as provided in Section 1(d)(iii) hereof, Landlord acknowledges that Tenant is the owner
of the Gas Processing Plant and all of the equipment erected or located on the Premises now or thereafter during the Term, and that title to such shall remain in Tenant until this Lease is terminated or expires. Tenant shall have the right,
exercisable in its discretion, during the Term of this Lease to add to, remove, replace or modify all or any part of the Gas Processing Plant. Any and all trade fixtures and equipment, signs, appliances, furniture and other personal property of any
nature installed in the Gas Processing Plant shall not become a part of the Premises and may be removed at any time during the Term. 
 (b) Surrender and Restoration. Upon the Termination Date, Tenant shall surrender and deliver the Premises to Landlord. During the Removal Period, Tenant shall remove the Gas Processing Plant from the Premises; provided, however,
Tenant shall have no obligation to remove the foundations and below ground-level portions of the Gas Processing Plant. Tenant shall have such rights of use and access as may be necessary or desirable to complete such removal during the Removal
Period. Upon the completion of the removal of the Gas Processing Plant from the Premises, Tenant shall repair or restore the surface of the Premises to the reasonable satisfaction of the Landlord. The provisions of this Section 10(b)
shall survive the termination or expiration of this Lease. 
  

	11.	MISCELLANEOUS 

 (a)
Notices. Whenever any notice, consent, election, waiver, approval or authorization (“Notice”) is required or permitted under this Lease, the same shall be in writing, and all oral notices, consents, elections, waivers,
approvals and authorizations shall be of no force and effect. All Notices by Tenant to Landlord shall be deemed to have been duly given if sent to Landlord by registered or certified mail (return receipt requested), postage prepaid, or by an
overnight express mail or nationally recognized courier service (e.g., FedEx) to Landlord at: 
 R.E. Gas Development, LLC

 476 Rolling Ridge Drive 
 State College, PA 16801 
 Attention: President 
  

 16 

 All Notices by Landlord to Tenant shall be deemed to have been duly given if sent to Tenant
by registered or certified mail (return receipt requested), postage prepaid, or by an overnight express mail or nationally recognized courier service (e.g., Federal Express) to Tenant at: 
 Keystone Midstream Services, LLC 
 10355 Westmoor Drive 
 Suite 250 
 Westminster, CO 80021 
 Attention: President 
 All Notices shall be effective upon being deposited in the United States mail or one (1) day after
delivery to an express courier service in the manner prescribed in paragraph (a) above. However, the time period in which a response to any such Notice must be given shall commence to run from the date of receipt by the addressee thereof as
shown on the return receipt of the Notice or as otherwise shown. Rejection or other refusal to accept, or the inability to deliver because of changed address of which no Notice was given, shall be deemed to be receipt of the Notice as of the date of
such rejection, refusal or inability to deliver. 
 (b) Waiver. No term, covenant, condition or default of this Lease
shall be deemed to have been waived unless such waiver shall be in writing signed by the party charged therewith. The consent of one party to any act or matter must be in writing and shall apply only with respect to the particular act or matter to
which such consent is given and shall not relieve the other party from the obligation to obtain the consent of the first party to any other act or matter. 
 (c) Recording. Neither Landlord nor Tenant shall record this Lease in its entirety. Each of Landlord and Tenant shall execute, acknowledge and deliver to the other upon request duplicate originals
of a memorandum of this Lease containing the information required by law for notice to third parties, which memorandum may be recorded by either party at the recording party’s expense. No memorandum of this Lease shall disclose any amount
payable under this Lease. 
 (d) Remedies Cumulative. The various rights, options, elections, powers and remedies
contained in this Lease, including the rights herein granted to terminate this Lease, shall be construed as cumulative and no one of them shall be exclusive of any of the others, or of any other legal or equitable remedy which either party might
otherwise have in the event of breach or default in the terms hereof, and the exercise of one right or remedy by such party shall not impair its ability to exercise any other right or remedy until all obligations imposed upon the other party have
been fully performed. 
 (e) Construction and Entire Agreement. This Lease contains all covenants and agreements between
Landlord and Tenant relating in any manner to the use and occupancy of the Premises and other matters set forth in this Lease. No prior agreement or understanding pertaining to the same shall be valid or of any force or effect, and the covenants and
agreements of this Lease cannot be altered, changed, modified or added to except in writing signed by Landlord and Tenant. 
  

 17 

 (f) Effect of Partial Invalidity. If any term or provision of this Lease or the
application thereof to any Person or circumstances shall, to any extent, be invalid or unenforceable, the remainder of this Lease, or the application of such term or provision to Persons or circumstances other than those as to which it is held
invalid or unenforceable, shall not be affected thereby, and each term and provision of this Lease shall be valid and be enforced to the fullest extent permitted by law. 
 (g) Successors and Assigns. This Lease and the covenants and conditions herein contained shall be binding upon and inure to the benefit of the parties hereto and the respective permitted successors
and assigns of Landlord and Tenant. 
 (h) No Partnership. Nothing contained in this Lease shall be deemed or construed
by the parties hereto or by any third Person to create the relationship of principal and agent or of partners or of joint venturers or of any association between Landlord and Tenant. 
 (i) Quiet Enjoyment. Title. Provided Tenant is not in default hereunder beyond any applicable grace and/or notice period, Tenant
shall have quiet enjoyment of the Premises during the Term subject to all the provisions of this Lease. 
 (j) Signs.
Tenant shall be permitted to erect any signs on the Premises that comply with applicable laws, provided that the erection of such signs does not cause damage to the Premises and Tenant first obtains Landlord’s prior written consent to any such
signs, such consent to not be unreasonably withheld, conditioned or delayed. 
 (k) Governing Law. This Lease shall be
construed under and governed by the laws of the Commonwealth of Pennsylvania, without regard to the principles of conflicts of law thereof. 
 (l) Holdover. In the event Tenant holds over after the expiration or earlier termination of the Term of this Lease, Tenant shall be liable to Landlord for Rent at the rate of Two Hundred Percent
(200%) of the rate in effect for the month which includes the date of such expiration or earlier termination of the term. 
 (m) Brokers. Landlord and the Tenant hereby represent and warrant each to the other that no brokers, agents or finders were involved on their behalf in negotiating or consummating this Lease. 
 (n) Headings. Headings of the sections herein are included solely for convenience of reference and shall not control the meaning or
interpretation of any provision of this Lease. 
 (o) Counterparts. Landlord and Tenant may execute this Lease in any
number of counterparts, each of which, when executed and delivered, shall have the force and effect of an original, but all of such counterparts shall constitute one and the same instrument. For purposes of the foregoing facsimile signatures or
signatures transmitted by e-mail/PDF shall have the same force and effect as original signatures. 
  

 18 

 IN WITNESS WHEREOF, Landlord and Tenant have caused this Lease to be executed by
their respective representatives duly authorized, as of the date first above written. 
  

			
	 LANDLORD:
  
 R.E. GAS DEVELOPMENT, LLC

		
	By:	 	 
	Name:	 	 
	Title:	 	 
		 	

  

			
	 TENANT:
  
 KEYSTONE MIDSTREAM SERVICES, LLC

		
	By:	 	 
	Name:	 	 
	Title:	 	 
		 	

  

 19 

 EXHIBIT A 
 Depiction of Premises 
 [Attached] 
 [A copy of a map showing the Phase I space and the Phase II space was attached to the agreement] 

 EXHIBIT B 
 Control Building 
 [Attached] 

 Exhibit F 
 Pipeline Option Agreement 

 PIPELINE OPTION AGREEMENT 
 This PIPELINE OPTION AGREEMENT (the “Option Agreement”) is executed this 21st day of December, 2009, and is from R.E. GAS DEVELOPMENT, LLC, a
Delaware limited liability company (“Rex”) to KEYSTONE MIDSTREAM SERVICES, LLC, a Delaware limited liability company (“Keystone”). Rex and Keystone each may be referred to in this Option individually as a
“Party” and collectively as the “Parties.” 
 BACKGROUND 
 Pursuant to that certain Contribution Agreement, dated December 21, 2009 (the “Agreement”), by and among Rex, Keystone and Stonehenge
Energy Resources, L.P., Rex has agreed to grant Keystone the option to purchase the Pipelines (as defined in the Agreement). 
 NOW, THEREFORE,
in consideration of the foregoing premises and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Parties hereby agree as follows: 
 ARTICLE I 
 OPTION 
 1.1. Option. Rex hereby grants Keystone an option, to be exercised at Keystone’s sole election, to purchase the Pipelines for
the purchase price of $1.00. Upon Keystone’s written notice to Rex of its election to purchase the Pipelines, the Parties agree to take all necessary actions, including those set forth in the Agreement, to transfer the Pipelines to Keystone as
soon as commercially practical. 
 1.2. Termination. Notwithstanding anything to the contrary herein, Keystone’s
option to purchase the Pipelines shall survive for a period of three (3) years from the Closing Date (as defined in the Agreement). In the event Keystone fails to exercise its option to purchase the Pipelines within such three-year period, the
option will terminate and the Parties will have no further obligations pursuant to this Option Agreement. 
 ARTICLE II

 MISCELLANEOUS 
 2.1. Governing Agreement. This Option Agreement is expressly made subject to the terms and provisions of the Agreement. The delivery of this Option Agreement shall not affect, enlarge, diminish, or
otherwise impair any of the representations, warranties, covenants, conditions, indemnities, terms, or provisions of the Agreement, and all of the representations, warranties, covenants, conditions, indemnities, terms, and provisions contained in
the Agreement shall survive the delivery of this Option Agreement to the extent, and in the manner, set forth in the Agreement. In the event of a conflict between the terms and provisions of this Option Agreement and the terms and provisions of the
Agreement, the terms and provisions of the Agreement shall govern and control. 

 2.2. Further Assurances. The Parties agree to take all such further actions and to
execute, acknowledge, and deliver all such further documents as are necessary or useful to give effect to the intent and purposes of the Agreement and this Option Agreement. 
 2.3. Successors and Assigns. The provisions of this Option Agreement shall bind and inure to the benefit of Rex and Keystone and
their respective successors and assigns. 
 2.4. GOVERNING LAW; JURISDICTION AND VENUE. THIS OPTION AND THE LEGAL
RELATIONS BETWEEN ASSIGNOR AND ASSIGNEE HEREUNDER SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF PENNSYLVANIA, WITHOUT REGARD TO THE CONFLICTS OF LAW RULES THEREOF. 
 2.5. Defined Terms. Any capitalized term not otherwise defined in this Option Agreement shall have the meaning set forth for such
term in the Agreement. 
 2.6. Captions. The captions and article and section numbers in this Option Agreement are for
convenience only and shall not be considered a part of or affect the construction or interpretation of any provision of this Option Agreement. 
 2.7. Counterparts. This Option Agreement may be executed in one or more originals, but all of which together shall constitute one and the same instrument. 

 This Option Agreement is executed on the date set forth above, to be effective for all
purposes as of the date set forth above. 
  

									
	 ASSIGNOR:
  
 R.E. GAS DEVELOPMENT, LLC
	 		 	 ASSIGNEE:
  
 KEYSTONE MIDSTREAM SERVICES, LLC

					
	By:	 	 	 		 	By:	 	 
	Name:	 	Benjamin W. Hulburt	 		 	Name:	 	Charles Wilkinson
	Title:	 	President and Chief Executive Officer	 		 	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC

 Exhibit G 
 Gas Gathering Agreement 
  

 2 

 GAS GATHERING AGREEMENT 
 THIS GAS GATHERING AGREEMENT (this “Agreement”), made as of the __ day of __________, ____, by and between KEYSTONE
MIDSTREAM SERVICES, LLC, a Delaware limited liability company (the “Gatherer”) and R.E. GAS DEVELOPMENT, LLC, a Delaware limited liability company (the “Producer”). Gatherer and Producer may
hereinafter be referred to individually as a “Party,” and collectively as the “Parties”. 
 RECITALS: 
 WHEREAS, the Gatherer owns a gas gathering system
located in Butler County, Pennsylvania; and 
 WHEREAS, the Producer owns or controls gas production from various wells
in Butler County, Pennsylvania and desires to have the Gatherer gather the gas for Producer; and 
 WHEREAS, the Gatherer
is willing to gather such gas for the Producer in accordance with the terms and conditions of this Agreement; 
 AGREEMENT

 NOW, THEREFORE, in consideration of the foregoing recitals and the agreements contained herein, and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, do hereby agree as follows: 
 1. Defined Terms. Unless otherwise provided to the contrary in this Agreement, capitalized terms in this Agreement shall have the following meanings: 
 “Day” shall mean a period of 24 consecutive hours beginning and ending at eight o’clock a.m. Eastern Time.

 “Delivery Point” shall mean the point of interconnect between the Gatherer’s Gathering System and
Producer’s gas processing plant located in Butler County, Pennsylvania as shown on Exhibit “A” attached hereto and made a part hereof in full. 
 “Gas” shall mean natural gas, including casinghead gas produced with crude oil, gas from gas wells produced in association with crude oil (associated gas), gas from condensate
wells (non-associated gas) and all elements, compounds and mixtures thereof comprising the effluent vapor stream produced in connection with such gas, and shall include any inerts or impurities contained therein. 
 “Gathering Fee” is defined in Section 2. 
 “Gathering System” shall mean, but not be limited to, the Gas gathering pipelines, fuel gas pipelines, dehydration
facilities, compression facilities, junctions, heaters, meters,

  

 3 

 
separators, electric power lines, communications cables, roads, and other related facilities and equipment from the inlet flange of the pipeline metering facility installed up to the inlet flange
of the block valve upstream of the inlet header at the Plant inlet, necessary to gather and transport Gas from the Receipt Point(s) to the Delivery Point. 
 “Mcf” and “MMcf” shall mean 1,000 standard cubic feet of gas and 1,000,000 standard cubic feet of gas, respectively. 
 “Receipt Point” is defined as the inlet flange of Gatherer’s metering facilities located at or near the well or
such other point as may be mutually agreed upon. Each Receipt Point will be listed on Exhibit “B” to this Agreement; and Exhibit “B” will be amended from time to time to reflect the addition or deletion of Receipt Points.

 2. Gathering Fee. Producer shall pay Gatherer a Gathering Fee, equal to [REDACTED]* per Mcf of
Producer’s Gas as measured at the Receipt Points. 
 3. Quantity; Pressure. 
 (a) Producer shall deliver Gas to Gatherer at the Receipt Points. Subject to Section 5, Gatherer shall accept all Gas delivered by
Producer at the Receipt Points and shall transport such Gas to the Delivery Point. 
 (b) Under normal operating conditions,
Producer shall deliver or shall cause to be delivered Gas hereunder to the Receipt Points at a pressure not greater than 600 psig and not less than 100 psig, or such lower pressure as exists in the Gathering System at the Receipt Points.
Notwithstanding anything to the contrary herein, Producer shall have no obligation to compress Gas prior to delivery of such Gas at the Receipt Points. 
 4. Regulation of Production. Producer agrees that it will cooperate with Gatherer in regulating the flow rate of Producer’s Gas and in establishing a producing schedule to deliver on a best
efforts basis the Gas at a uniform and continuous flow rate. 
 5. Quality. Gatherer shall not be obligated to receive Gas
delivered hereunder that fails to meet the following specifications: commercial in quality and free from any foreign materials such as dirt, dust, iron particles, crude oil, dark condensate, and free water, and other similar matter; and substances
which may be injurious to pipelines or which may interfere with the transmission of said Gas. 
 6. Term. This Agreement shall be
effective from the date hereof and shall continue in full force until the “In-Service Date”, as such term is defined in that certain Gas Gathering, Compression and Processing Agreement between the Parties dated December 21, 2009. This
Agreement will automatically terminate on the In-Service Date without further action taken by the Parties. 
 7. Measurement
and Meter Testing. 
 (a) All Gas measurements required hereunder shall be made with equipment of standard make to be
furnished, installed, operated, and maintained by Gatherer in accordance with the recommendations contained in ANSI/API 2530 as then published. Producer, or others having Producer’s consent, may, at its option and expense, install and operate
check measuring equipment Upstream of the measuring equipment to check the measuring equipment, provided the installation of the check measuring equipment in no way interferes with the operation of the measuring equipment. 
  

 4 

 (b) The factors used in computing Gas volumes from orifice meter measurements shall be the
latest factors published by the AGA. These factors shall include: 
 (i) Basic orifice factor. 
 (ii) Pressure base factor based on a pressure base of 14.73 psia. 
 (iii) Temperature base factor based on a temperature base of 60oF. 
 (iv) Flowing temperature factor, based on the flowing temperature as measured by an industry accepted recording device, if, at Gatherer’s option, a recording device has been installed, otherwise the
temperature shall be assumed to be 60oF. 
 (v) Super compressibility factor, obtained from the latest AGA Manual for the Determination of Super Compressibility Factors for Natural Gas
(AGA 8). 
 (vi) Specific gravity factor, based on the specific gravity of the Gas as determined under the provisions set forth
below. 
 (c) Gatherer shall test the accuracy of its measuring equipment at least once every calendar quarter. Additional
test(s) shall be promptly performed upon notification by either Party to the other. If any additional test requested by Producer indicates that no inaccuracy of more than 2% exists, at a recording rate corresponding to the average rate of flow for
the period since the last preceding test, then Producer shall reimburse Gatherer for all its direct costs in connection with that additional test within 15 days following receipt of a detailed invoice and supporting documentation setting forth those
costs. 
 (d) If, upon test, any measuring equipment is found to be in error by an amount not exceeding 2%, at a recording rate
corresponding to the average rate of flow for the period since the last preceding test, previous recordings of that equipment shall be considered correct in computing deliveries hereunder. If the measuring equipment shall be found to be in error by
an amount exceeding 2%, at a recording rate corresponding to the average rate of flow for the period since the last preceding test, then any preceding recordings of that equipment since the last preceding test shall be corrected to zero error for
any period which is known definitely or agreed upon. If the period is not known definitely or agreed upon, the correction shall be for a period extending back one-half of the time elapsed since the last test. In the event a correction is required
for previous deliveries, the volumes delivered shall be calculated by the first of the following methods which is feasible: (i) by using the registration of any check meter or meters if installed and accurately registering; or (ii) by
correcting the error if the percentage of error is ascertainable by calibration, test, or mathematical calculations; or (iii) by estimating the quantity of delivery by deliveries during periods of similar conditions when the meter was
registering accurately. 
 (e) Each Party, at its sole risk and liability, shall have access at all reasonable hours to all
facilities which are related to Gas measurement and sampling. Each Party, at its sole risk and liability, shall have the right to be present for any installing, reading, cleaning, changing, repairing, testing, calibrating and/or adjusting of either
Party’s measuring equipment. The Parties shall cooperate in obtaining and providing telemetry and similar equipment and systems to provide measurement information to the Parties. 
  

 5 

 8. Accounting and Payments. 
 (a) Gatherer shall furnish to Producer on or before the 15th day of each month a statement indicating the volume of Producer’s Gas
gathered during the previous month and the Gathering Fee owed by Producer. Producer will pay the Gathering Fee set forth on such statement within 15 days of receipt of such statement. 
 (b) Each party shall have the right during reasonable hours to examine books, records, charts, and original test data of the other party to
the extent necessary to verify the accuracy of any statement, charge, credit, computation, test, or delivery made pursuant to any provision hereof. If any such examination reveals any inaccuracy in any such statement, charge, credit, computation,
test, or delivery, the necessary adjustment shall be promptly made. 
 (c) Producer shall be responsible for the payment of any
royalties due on Producer’s Gas. Producer shall indemnify and hold Gatherer harmless from all claims, actions, causes of action or damages, liability, or obligations arising out of or related to the payment of the lessor’s royalty or any
other burden or encumbrance affecting Producer’s Gas. 
 (d) All accounting records and documents directly related to this
Agreement prepared by either party hereto shall be retained for a period of not less than two years following the end of the calendar year of their origination. The parties further agree that all matters relating to the accounting hereunder for any
calendar year shall be considered correct and not subject to further audit or legal challenge after two years following the end of the calendar year. 
 9. Warranty. Producer represents and warrants that it owns, or has the right to deliver, all Gas delivered to the Receipt Points for the purposes of this Agreement, free and clear of all liens, encumbrances and adverse claims.
Producer hereby indemnifies Gatherer against and holds Gatherer harmless from any and all losses arising out of or related to any breach of the foregoing representation and warranty. 
 10. Taxes. 
 (a) Producer shall pay or cause to be paid all
production, severance and ad valorem taxes, assessments, and other charges levied or assessed against the Gas delivered by Producer hereunder, and against the sale thereof, and all taxes and statutory charges levied or assessed against any of
Producer’s properties, facilities, or operations. 
 (b) Gatherer shall pay all taxes and statutory charges levied or
assessed against its Gathering System and operations. 
  

 6 

 11. Indemnity. 
 (a) Each of the parties hereto assumes full responsibility and liability for the maintenance of its respective properties and agrees to indemnify and save the other party harmless from all liability and
expense on account of any and all damages, claims, taxes, actions, including injury to or death of persons and damage to or destruction of property arising from any act or omission or accident in connection with control or possession of the Gas by,
or the installation, presence, maintenance, and/or operation of the property and equipment of, the indemnitor. 
 (b) Producer
agrees to defend, indemnify, and hold Gatherer harmless from all claims, actions, damages, liability, expenses, including wrongful death, personal injury, or property damage arising out of or in connection with (i) Producer’s ownership and
control of the Gas prior to the time the Gas passes through the Receipt Point(s); (ii) after the Gas is delivered by Gatherer at the Delivery Point; and (iii) the ownership and operation of any wells and facilities installed by Producer
above the Receipt Point(s), whether or not required under the terms of this Agreement. 
 (c) Gatherer agrees to defend,
indemnify, and hold Producer harmless from all claims, actions, damages, liability, or expense, including wrongful death, personal injury, or property damage arising out of or in connection with (i) Gatherer’s control of the Gas after
receipt at the Receipt Point(s) and prior to delivery at the Delivery Point and (ii) the operation of the Gathering System. 
 (d) As between the parties hereto, and as to liability, if any accruing to either party hereto, or to any third party, Producer shall be solely liable for and in control and possession of the Gas deliverable hereunder and shall bear the
risk of loss until the Gas is delivered to Gatherer at the Receipt Point(s). Gatherer shall be solely liable for and in control and possession of the Gas and shall bear the risk of loss until Gatherer has delivered the Gas at the Delivery Point.

 (e) Neither Producer nor Gatherer shall have any responsibility with respect to Gas deliverable or delivered hereunder, or on
account of anything which may be done, happen, or arise with respect thereto, during such time as said Gas is in control and possession of the other party as hereinabove provided. 
 12. Force Majeure. In the event any party hereto is rendered unable, wholly or in part, by force majeure to carry out its obligations under this Agreement, other than the obligation to make
payments due hereunder, it is agreed that on such party giving notice and full particulars of such inability by telephone and in writing to the other party as soon as possible after the occurrence of the cause relied on, then the obligations of the
party giving such notice, so far as they are affected by such force majeure, shall be suspended during the continuance of any inability so caused, but for no longer period, and such cause shall, as far as possible, be remedied with all reasonable
dispatch. The term “force majeure” as employed herein shall mean acts of God; strikes; lockouts; or other industrial disturbances; acts of the public enemy; wars; blockades; insurrections; riots; epidemics; landslides; lightning;
earthquakes; fires; storms; floods; washouts; arrests and restraints of governments and people; civil disturbances; explosion, breakage, or accidents to machinery, plant facilities, or lines of pipe; the necessity for making repairs to or
alterations of machinery, plant facilities, or lines of pipe; freezing of wells or lines of pipe; partial or entire failure of wells; and the inability of either Producer or Gatherer to

  

 7 

 
acquire, or the delays on the part of either Producer or Gatherer in acquiring, at reasonable cost and after the exercise of reasonable diligence: (a) any servitude, rights-of-way grants,
permits, or licenses; (b) any materials or supplies for the construction or maintenance of facilities; (c) any permits or permissions from any governmental agency if such are required; and any other causes, whether of a kind herein
enumerated or otherwise, not within control of the party claiming suspension and which by the exercise of due diligence such party is unable to prevent or overcome. It is understood and agreed that the settlement of strikes or lockouts shall be
entirely within the discretion of the party having the difficulty and that the above requirements that any force majeure shall be remedied with all reasonable dispatch shall not require the settlement of strikes or lockouts by acceding to the
demands of the opposing party when such course is inadvisable in the sole discretion of the party having the difficulty 
 13.
Assignments. This Agreement shall extend to and be binding upon the parties hereto, their successors, and assigns. Subject to the provisions below, this Agreement and the rights, duties or obligations of the parties hereunder may be assigned
or conveyed in whole; provided, however, that except as set forth in the following sentence, neither Party shall assign or transfer this Agreement and any rights, duties or obligations hereunder, without the prior written consent of the other Party,
which consent shall not be unreasonably withheld. No assignment shall relieve the assignor of any of its duties or liabilities hereunder which arose prior to such assignment, but the assignee shall assume all duties and obligations of the assignor
arising from and after such assignment and the assignor shall be relieved of such duties and obligations arising from and after such assignment. No transfer of, or succession to, the interest of any Party hereto, either in whole or partially, shall
affect or bind the other Party until the first day of the month following the month in which the other Party shall have received written notification thereof. 
 14. Miscellaneous. 
 (a) The failure of any Party hereto to exercise
any right granted hereunder shall not impair nor be deemed a waiver of that Party’s privilege of exercising that right at any subsequent time or times. 
 (b) This Agreement shall be governed by, construed, and enforced in accordance with the laws of the State of Pennsylvania without regard to choice of law principles. EACH OF THE PARTIES HERETO IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. 
 (c) Dispute Resolution. 
 (i) Dispute. Any controversy, claim, deadlock or dispute
between the Parties arising out of, relating to or in connection with this Agreement (a “Dispute”), and that is not otherwise settled by agreement between the Parties, shall be exclusively and finally resolved pursuant to the provisions
and procedures set forth in this Section 14.(c). Without limiting the generality of the first sentence of this Section, the following shall be considered Disputes for this purpose: (a) all questions relating to the interpretation or breach
of this Agreement, (b) all questions relating to any representations, negotiations and other proceedings leading to the execution of this Agreement and (c) all questions regarding the

  

 8 

 
application of this Section 14.(c) and the arbitration provisions contained herein. Notwithstanding the foregoing provisions of this Section 14.(c), any legal action for a preliminary
injunction or other prejudgment relief will be resolved by the arbitrator appointed in accordance with Section 14.(c); provided, that, at any time before the arbitrator has been appointed, any Party may seek a preliminary injunctive or other
prejudgment relief from a Pennsylvania court of competent jurisdiction to the extent necessary to preserve the status quo or to preserve such Party’s ability to obtain meaningful relief pending the outcome of the arbitration proceeding under
this Section 14.(c). Any Party may bring an action in a Pennsylvania court of competent jurisdiction to compel arbitration of any Dispute after the procedure under Section 14.(c)(ii) is exhausted; provided, that to the fullest extent
permitted by law, each Party hereby waives and relinquishes any right to compel the resolution of any substantive issues regarding a Dispute in any court of competent jurisdiction, or to request any other relief from a court of competent
jurisdiction except as specifically set forth in this Section 14.(c). 
 (ii) Executive Mediation. In the event of any
Dispute, upon written request of any Party, such Dispute shall immediately be referred to one representative of the executive management designated by each Party in respect of such Dispute who is authorized to settle such Dispute. Such
representatives shall promptly meet in a good faith effort to resolve such Dispute. If the representatives designated by the relevant Dispute Parties pursuant to this Section 14.(c)(ii) do not resolve such Dispute within ten (10) days
after such written request, such Dispute shall be exclusively and finally resolved by binding arbitration in accordance with the provisions and procedures set forth in Section 14.(c)(iii). 
 (iii) Arbitration. The arbitration shall be administered by the American Arbitration Association, or a successor organization (the
“AAA”), under its Commercial Arbitration Rules. The arbitration shall be conducted by a single arbitrator chosen under the AAA’s Commercial Arbitration Rule and such arbitrator shall have at least ten (10) years experience
practicing in the oil and gas industry. 
 A. The site of arbitration shall be Pittsburgh, Pennsylvania, unless otherwise agreed
by the Parties. 
 B. The Parties shall diligently and expeditiously proceed with arbitration. The arbitrator shall be
instructed to render a written decision within forty-five (45) days after the conclusion of the hearing or the filing of such briefs as may be authorized by the arbitrator, subject to any reasonable delay due to unforeseen circumstances. Except
to the extent the Parties’ remedies may be limited by the terms of this Agreement, the arbitrator shall be empowered to award any remedy available under the laws of the State of Pennsylvania including monetary damages and specific performance.
The arbitrator shall not have the power to amend or add to this Agreement. The award of the arbitrator shall be in writing with reasons for such award and signed by the arbitrator. Any award rendered shall be final and binding. Judgment rendered by
the arbitrator may be entered in any court having jurisdiction thereof. 
  

 9 

 C. The Parties hereto hereby waive any rights to appeal or to review of such award by any
court or tribunal. The Parties further undertake to carry out without delay the provisions of any arbitral award or decision, and each agrees that any such award or decision may be enforced by any competent tribunal. 
 D. The costs of such arbitration shall be determined by and allocated between the Parties by the arbitrator in its award. This
Section 14.(c)(iii) constitutes an independent contract to arbitrate all disputes between the Parties, including disputes regarding contract formation and whether a Party is entitled to quasi-contractual or quantum meruit recovery from another
Party. Unless otherwise agreed in writing, the Parties shall continue to perform their respective obligations hereunder during any arbitration proceeding by the Parties in accordance with this Section 17.3(c). 
 (d) The Parties agree that (a) Gatherer shall keep confidential all information provided by Producer to Gatherer pertaining to
Producer’s exploration and development plans, production forecasts, acreage positions and other non-public information of Producer, and (b) the Parties shall keep the terms of this Agreement confidential and not disclose the same to any
other persons, firms or entities without prior written consent (of Producer in the case of (a) or the other Party in the case of (b)); provided, the foregoing shall not apply to disclosures compelled by law or court order; or to disclosures to
a Party’s affiliates or such Party’s or its affiliates’ employees, directors, officers, partners, prospective partners or financing sources, financial advisors, consultants, attorneys, banks, or institutional investors provided those
persons, firms or entities likewise agree to keep this Agreement confidential. 
 (e) Any change, modification or alteration of
this Agreement shall be in writing, signed by the Parties; and, no course of dealing between the Parties shall be construed to alter the terms of this Agreement. 
 (f) All exhibits and appendices to this Agreement are hereby incorporated into and made part of this Agreement for all purposes. This Agreement, including all exhibits and appendices, contains the entire
agreement between the Parties with respect to the subject matter hereof, and there are no oral or other promises, agreements, warranties, obligations, assurances, or conditions precedent, affecting it. 
 (g) The terms and provisions of this Agreement are for the sole benefit of Gatherer and Producer, and no third party is intended to benefit
herefrom other than the Indemnified Parties. 
 (h) NO BREACH OF THIS AGREEMENT OR CLAIM FOR LOSSES UNDER ANY INDEMNITY
OBLIGATION CONTAINED IN THIS AGREEMENT SHALL CAUSE ANY PARTY TO BE LIABLE FOR, NOR SHALL LOSSES INCLUDE, ANY DAMAGES OTHER THAN ACTUAL AND DIRECT DAMAGES, AND EACH PARTY EXPRESSLY WAIVES ANY RIGHT TO CLAIM ANY OTHER DAMAGES, INCLUDING, WITHOUT
LIMITATION, CONSEQUENTIAL, SPECIAL, INDIRECT, PUNITIVE OR EXEMPLARY DAMAGES. 
  

 10 

 (i) This Agreement shall be subject to all applicable federal, state, and local laws, rules,
regulations, and orders affecting either Gatherer or Producer and that pertain to the Gathering System or the operation thereof. In the event any one or more of the provisions of this Agreement shall be found to be violative of any applicable order,
rule, or regulation of any regulatory body having jurisdiction, or of any valid law of the United States or any state or other governmental entity having jurisdiction, such provision or provisions shall be deemed to be modified to the extent
necessary to comply with such order, rule, regulation, or law; provided, however, that in the event that a material term under this Agreement is so modified, the Parties will, timely and in good faith, revise and amend this Agreement in a manner
which preserves, as closely as possible, each Party’s business and economic objectives as expressed by the Agreement prior to such modification. 
 (j) Unless otherwise provided herein, any statement, notice, request or demand which either Party desires to serve upon the other regarding this Agreement shall be made in writing and shall be considered
as delivered when hand delivered, or when delivery is confirmed by pre-paid delivery service (such as FedEx, UPS, DHL or a similar delivery service), or when sent via email, or, if mailed by United States certified mail, postage prepaid, three
(3) days after mailing, or, if sent by facsimile transmission, when receipt is confirmed by the equipment of the transmitting Party; provided, if sent by email after normal business hours or if receipt of a facsimile transmission is confirmed
after normal business hours, receipt shall be deemed to be the next Business Day. Such notice shall be given to the other Party at the following address, or to such other address as either Party shall designate by written notice to the other:

 If to Producer: 
 R.E. GAS DEVELOPMENT, LLC 
 476 Rolling Ridge Drive, Suite 300 
 State College, PA 16801 
 Attention: Timothy Beattie 
 Phone: (814) 278-7267 
 Fax: (814) 278-7286 
 If to Gatherer: 
 KEYSTONE MIDSTREAM SERVICES, LLC 
 10355 Westmoor Drive, Suite 250 
 Westminster, CO 80021-2579 
 Attention: Michael Brinkmeyer 
 Phone: (303) 991-1480 
 Fax: (303) 451-7394 
 (k) This Agreement may be executed in any number of counterparts, each of which shall be
considered an original, and all of which shall be considered one instrument. This Agreement shall not become effective unless and until executed by all Parties. 
 [Remainder of Page Intentionally Left Blank. Signature Page Follows.] 
  

 11 

 IN WITNESS WHEREOF, the Parties have executed this Gas Gathering Agreement as of the date first above
written. 
  

									
	 GATHERER:
  
 KEYSTONE MIDSTREAM SERVICES, LLC
	 		 	 PRODUCER:
  
 R.E. GAS DEVELOPMENT, LLC

					
	By:	 	 	 		 	By:	 	 
	Name:	 	Charles Wilkinson	 		 	Name:	 	Benjamin W. Hulburt
	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC	 		 	Title:	 	President and Chief Executive Officer

 Exhibit “A” 
 Delivery Point 
 That certain point of interconnection between the Gathering
System and Producer’s gas processing plant located in Butler County, Pennsylvania. 

 EXHIBIT “B” 
 Receipt Point(s) 
 The point of interconnection between each of
Producer’s wells and the Gathering System owned and operated by Gatherer hereunder. 

 Exhibit H 
 Pipelines Assignment and Assumption Agreement 

 ASSIGNMENT AND ASSUMPTION AGREEMENT 
 (PIPELINES) 
 This ASSIGNMENT
AND ASSUMPTION AGREEMENT (“Assignment”) is executed this __ day of __________, ____, and is from R.E. GAS DEVELOPMENT, LLC, a Delaware limited liability company (“Assignor”) to KEYSTONE MIDSTREAM SERVICES, LLC, a
Delaware limited liability company (“Assignee”). Assignor and Assignee each may be referred to in this Assignment individually as a “Party” and collectively as the “Parties.” 
 BACKGROUND 
 Pursuant to
that certain Contribution Agreement, dated December 21, 2009 (the “Agreement”), by and among Assignor, Assignee and Stonehenge Energy Resources, L.P. and that certain Pipeline Option Agreement between Assignor and Assignee,
Assignor has agreed to assign, convey, transfer and deliver the Assets (as defined below) to Assignee, and Assignee has agreed to acquire such Assets from Assignor and assume the liabilities and obligations with respect thereto, all as more fully
described in the Agreement. 
 NOW, THEREFORE, in consideration of the foregoing premises and for other good and valuable consideration, the
receipt and adequacy of which are hereby acknowledged, the Parties hereby agree as follows: 
 ARTICLE I 
 ASSIGNMENT; ASSUMPTION 
 1.1. Assignment. For good and valuable consideration as set forth in the Agreement, the receipt and sufficiency of which each Party hereby acknowledges, Assignor hereby grants, transfers, bargains,
conveys, and assigns to Assignee all of its right, title and interest in and to following assets (the “Assets”): 
 (a) those certain natural gas gathering pipelines described on Exhibit A attached hereto and including (i) all real property, leases, licenses, rights-of-way, and easements related to the
pipelines or necessary for the location, use, occupancy, maintenance, repair replacement and removal of the pipelines and described on Exhibit B attached hereto, (ii) all of Assignor’s equipment, machinery, fixtures and other
tangible personal property and improvements used or held for use primarily in connection with the operation of such pipelines (excluding automotive equipment), and (iii) the Rex Permits. The Assets do not include Assignor’s existing
refrigeration plant and all pipelines, fixtures and equipment downstream from such plant, including, but not limited to the Dominion tap site and M/R station. 
 1.2. Assumption. Assignee hereby assumes and agrees to pay, perform and discharge when due the Assumed Liabilities, as set forth in the Agreement; and, Assignor agrees to pay, perform or discharge
the Rex Retained Liabilities, as set forth in the Agreement. 

 ARTICLE II 
 MISCELLANEOUS 
 2.1. Governing Agreement.
Although this Assignment reflects the complete and final transfer of the Assets, this Assignment is expressly made subject to the terms and provisions of the Agreement. The delivery of this Assignment shall not affect, enlarge, diminish, or
otherwise impair any of the representations, warranties, covenants, conditions, indemnities, terms, or provisions of the Agreement, and all of the representations, warranties, covenants, conditions, indemnities, terms, and provisions contained in
the Agreement shall survive the delivery of this Assignment to the extent, and in the manner, set forth in the Agreement. In the event of a conflict between the terms and provisions of this Assignment and the terms and provisions of the Agreement,
the terms and provisions of the Agreement shall govern and control. 
 2.2. Further Assurances. The Parties agree to take
all such further actions and to execute, acknowledge, and deliver all such further documents as are necessary or useful to more effectively convey, transfer to or vest in Assignee the Assets or to better enable Assignee to realize upon or otherwise
enjoy any of the Assets or to carry into effect the intent and purposes of the Agreement and this Assignment. 
 2.3.
Successors and Assigns. The provisions of this Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 
 2.4. GOVERNING LAW; JURISDICTION AND VENUE. THIS ASSIGNMENT AND THE LEGAL RELATIONS BETWEEN ASSIGNOR AND ASSIGNEE HEREUNDER SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE
OF PENNSYLVANIA, WITHOUT REGARD TO THE CONFLICTS OF LAW RULES THEREOF. 
 2.5. Exhibits. All exhibits and schedules
attached hereto are hereby made a part hereof and incorporated herein by this reference. References in such exhibits and schedules to instruments on file in the public records are notice of such instruments for all purposes. Unless provided
otherwise, all recording references in such exhibits and schedules are to the appropriate records of the counties in which the Assets are located. 
 2.6. Defined Terms. Any capitalized term not otherwise defined in this Assignment shall have the meaning set forth for such term in the Agreement. 
 2.7. Captions. The captions and article and section numbers in this Assignment are for convenience only and shall not be considered a
part of or affect the construction or interpretation of any provision of this Assignment. 
 2.8. Counterparts. This
Assignment may be executed in one or more originals, but all of which together shall constitute one and the same instrument. 

 This Assignment is executed on the date set forth above, to be effective for all purposes as
of the date set forth above. 
  

									
	 ASSIGNOR:
  
 R.E. GAS DEVELOPMENT, LLC
	 		 	 ASSIGNEE:
  
 KEYSTONE MIDSTREAM SERVICES, LLC

					
	By:	 	 	 		 	By:	 	 
	Name:	 	Benjamin W. Hulburt	 		 	Name:	 	Charles Wilkinson
	Title:	 	President and Chief Executive Officer	 		 	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC

 ACKNOWLEDGEMENTS 
  

			
	 THE STATE OF
                            
	  	§                    
		  	§                    
	 COUNTY OF
                                
	  	§                    

 This instrument was acknowledged before me on the __ day of _________, ____ by
__________, the __________ of R.E. Gas Development, LLC, a Delaware limited liability company, on behalf of said limited liability company. 
  

	
	
	  
	Notary Public, State of                      

  

			
	 THE STATE OF
                            
	  	§                    
		  	§                    
	 COUNTY OF
                                
	  	§                    

 This instrument was acknowledged before me on the __ day of _________, ____ by
__________, the __________ of Keystone Midstream Services, LLC, a Delaware limited liability company, on behalf of said limited liability company. 
  

	
	
	  
	Notary Public, State of                      

 EXHIBIT A 
 PIPELINES 

 Schedule 1 
 Pipelines 
 Those certain natural gas gathering pipelines crossing
lands covered by the following leases and depicted on the map set forth below: 

													
	 Lease
Date
	 	 Lessor
	 	 Original Lessee
	 	 Current Lessee
	 	 Parcel I.D.
	 	 Acres
	  	 Recorded
Instrument No.

							
	 02/09/2007
	 	John O. Bame	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-52-9A1	 	163.0900	  	200704230009840
							
	 02/09/2007
	 	John O. Bame	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-54-A6	 	63.0000	  	200704230009841
							
	 03/21/2007
	 	John S. Enslen, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-19, 4F-27-19D	 	59.2200	  	200705110011900
							
	 12/16/2006
	 	Rodney J. Gasch, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-A1	 	76.9720	  	200906260014509
							
	 03/04/2007
	 	Virginia M. Hall, et al	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-21	 	65.2600	  	200706200015890
							
	 04/26/2007
	 	J. Upton Hudson	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-A4B	 	125.8470	  	200709210024832
							
	 12/21/2006
	 	Kane Family Trust	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-13	 	51.1600	  	200706000015883
							
	 01/31/2007
	 	Lisa M. Knauf	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-A15	 	31.6050	  	200706200015871
							
	 01/10/2007
	 	Roy E. Knauf, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	 4F-27-A1A,4F27A1G,
 4F-52-9,
4F-54-A7
	 	217.3303	  	200706200015881
							
	 07/28/2007
	 	Paul M. Lonchena, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-A3	 	40.0000	  	200709270025387
							
	 11/29/2006
	 	Donald T. Reedy	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-25-20F, 4F-2528M	 	100.0500	  	200703130005772
							
	 11/30/2006
	 	Jerome M. Weakland, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-17C & 4F-2718	 	99.5640	  	20071010026513
							
	 12/14/2006
	 	Elmira Zirnsak	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-10 & 4F-27-11	 	92.3200	  	200710100026488
							
	 03/15/2008
	 	Paul W. Knauff, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F-27-A1E	 	42.0000	  	200804030007040
							
	 06/05/2008
	 	Randy E. Soergel, et ux	 	Vista Resources Inc.	 	R.E. Gas Development, LLC	 	4F27-5C	 	38.7800	  	200906050012482

 [A COPY OF A MAP SHOWING THE PIPELINES HAS BEEN REDACTED]* 

 EXHIBIT B 
 RIGHTS OF WAY 

 Schedule 2 
 Plant Site 
 That certain tract of land constituting the “Phase I
Space” to be leased to the Company pursuant to that certain Site Lease to be entered into between the Company and Rex pursuant to the terms of Section 3.3 or such Alternate Site as may be acquired by the Company pursuant to the terms of
Section 3.3. 

 Schedule 3 
 Required Consents 
 A consent is required pursuant to that certain
Credit Agreement, dated as of September 28, 2007, by and among Rex Energy Corporation, as Borrower, KeyBank National Association, as Administrative Agent, and the lenders party thereto, as amended. 

 Schedule 4 
 Non-transferable Permits 
 NONE 

 Schedule 4.14 
 CONTRACTS 
 1. That certain Gas Purchase Agreement by and between
Butler Gas Processing, LLC and Vista Marcellus, Inc. dated May 9, 2009. 

 Schedule 5 
 Rights-of-Way 
  

	1.	Pipeline Right-of-Way Agreement by and among Paul S. Bilski, Lisa Knauf Bilski and Vista Resources, Inc. dated January 16, 2009 covering portions of Tract No
4F27-A15 in Forward Township, Butler County, Pennsylvania. 

  

	2.	Compressor Station and Pipeline Right of Way Agreement by and among Brian L. Magill, Sherri D. Magill and Vista Operating, Inc. dated July 30, 2008 covering lands
situated in Connoquenessing and Forward Township, Butler County, Pennsylvania recorded at instrument number 200809150021102. 

  

	3.	Right of Way Agreement by and between The Betty J. Lambert Revocable Trust Agreement, Betty J. Lambert as Trustee and R.E. Gas Development, LLC dated October 16,
2009 covering portions of Block No 180-4F127-2 in Jackson Township, Butler County, Pennsylvania.Gas Gathering, Compression and Processing Agreement

 Exhibit 10.3 
 * THE COMPANY HAS REQUESTED AN ORDER FROM THE SECURITIES AND EXCHANGE COMMISSION (THE “COMMISSION”) PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, GRANTING
CONFIDENTIAL TREATMENT TO SELECTED PORTIONS. ACCORDINGLY, THE CONFIDENTIAL PORTIONS HAVE BEEN OMITTED FROM THIS EXHIBIT, AND HAVE BEEN FILED SEPARATELY WITH THE COMMISSION. OMITTED PORTIONS ARE INDICATED BY “[REDACTED]”. 

 GAS GATHERING, COMPRESSION AND PROCESSING AGREEMENT 
 This Gas Gathering, Compression and Processing Agreement (“Agreement”) is made and entered into this 21
st day of December, 2009, by and between Keystone
Midstream Services, LLC, a Delaware limited liability company (“Keystone”) and R.E. Gas Development, LLC, a Delaware limited liability company (“Rex”) with Rex Energy Corporation, a Delaware
corporation (“Guarantor” for the limited purpose specifically set forth in Article 18). Keystone and Rex may be referred to individually as a “Party,” or collectively as the “Parties.” 

RECITALS: 
 A.
Rex owns or controls Gas produced from oil and gas leasehold rights or other oil and gas interests and rights held by Rex within the Dedication Area as defined herein, and Rex desires to develop such for the production of oil and/or gas. 

B. Upon the development of Rex’s interests for the production of gas, Rex will require certain gas gathering, compression and
processing services. 
 C. Keystone is willing to provide the gas gathering, compression and processing facilities needed for
the development of Rex’s oil and gas interests within the Dedication Area. 
 D. The Parties desire to enter into this
Agreement for Keystone to provide gas gathering, compression and processing services to Rex for Rex’s Gas, as defined herein, produced within the Dedication Area, all on the terms set forth herein. 
 In consideration of the mutual covenants and agreements contained herein, Rex and Keystone agree as follows: 
 ARTICLE 1: DEFINITIONS 
 Accounting
Period. The period commencing at 9:00 a.m., Central Clock Time, on the first day of a calendar month and ending at 9:00 a.m., Central Clock Time, on the first day of the next succeeding month. 

 Execution Version 
  

 Affiliate. Any (a) Person directly or indirectly controlling, controlled by, or under common
control with such Person, (b) Person owning or controlling fifty percent (50%) or more of the outstanding voting interests of such Person, (c) officer, director, manager, or general partner of such Person, or (d) Person who is an
officer, director, manager, general partner, trustee, or holder of fifty percent (50%) or more of the voting interests of any Person described in clauses (a) through (c) of this sentence. For purposes of this definition, the term
“control,” “controls,” “controlling,” “controlled by,” or “under common control with” means the possession, direct or indirect, of the power to direct or cause the direction of the management and
policies of a Person, whether through the ownership of voting securities, by contract or otherwise. 
 Btu. A British Thermal Unit, which
is the quantity of heat required to raise the temperature of one (1) pound avoirdupois of pure water from fifty-eight and five tenths degrees Fahrenheit (58.5°F) to fifty-nine and five tenths degrees Fahrenheit (59.5°F) at a
pressure of fourteen and six hundred ninety-six thousandths pounds per square inch absolute (14.696 psia). 
 Business Day. Any day other
than Saturday, Sunday or a legal holiday in the State of Pennsylvania. 
 Dedication Area. All acreage in the area shown on Exhibit A,
attached hereto. 
 Entity. Any general partnership (including a limited liability partnership), limited partnership (including a limited
liability limited partnership), limited liability company, corporation, joint venture, trust, business trust, cooperative, association, foreign trust, or foreign business organization. 
 Facilities. The Gathering System together with the Processing Plant. 
 Fuel. All
Gathering System Fuel and Plant Fuel measured and utilized as fuel in the Facilities. 
 Gas. All hydrocarbon and non-hydrocarbon
substances produced from gas and/or oil wells in a gaseous state at the relevant Receipt Point(s). 
 Gathering System. Gas gathering
facilities, from the Receipt Point(s) to the inlet of the Processing Plant, including any needed compression, as expanded from time to time. 
 Gathering System Fuel. All Gas measured and utilized as fuel for the Gathering System. 
 GPM. The number of gallons of
Plant Products per 1,000 cubic feet of Gas. 
 Gross Heating Value. The number of Btu’s produced by the combustion, on a dry basis
and at a constant pressure, of the amount of the Gas which would occupy a volume of one Cubic Foot at a temperature of 60°F and at a pressure of 14.73 psia, with air of the same temperature and pressure as the Gas, when the products of
combustion are cooled to the initial temperature of the Gas and air, and when the water formed by combustion is condensed to the liquid state. Hydrogen sulfide shall be deemed to have no heating value. 
  

 Page 2 of 27 

 Execution Version 
  

 Indemnifying Party and Indemnified Parties. As defined in Article 13, below. 

In-Service Date. The date upon which the Processing Plant has been constructed, commissioned, and is ready to process Gas, and has been connected
to the Gathering System and to the Redelivery Point(s). 
 Interest(s). Any right, title, or interest of any nature in and to oil and gas
leases and mineral fee interests together with any pooling, unitization or communitization of any of the foregoing rights. 
 Losses. Any actual loss, cost, expense, liability, damage, demand, suit, sanction, claim, judgment, lien, fine or penalty asserted by a third party (unaffiliated with Indemnified Party) incurring such, and which are
asserted against the applicable Indemnified Party on account of injuries (including death) to any person or damage to or destruction of any property, sustained or alleged to have been sustained in connection with or arising out of the matters for
which the Indemnifying Party has indemnified the applicable Indemnified Party. 
 Mcf. 1,000 cubic feet of Gas, measured at
Standard Base Conditions. 
 MMBtu. 1,000,000 Btu’s. 
 MMcf. 1,000,000 cubic feet of Gas, measured at Standard Base Conditions. 
 Person.
Any individual or Entity, and the heirs, executors, administrators, legal representatives, successors, and assigns of such “Person” where the context so permits. 
 Plant Fuel. All Gas measured and utilized as fuel in the Processing Plant. 
 Plant
Products. Ethane, propane, iso-butane, normal butane, iso-pentane, normal pentane, hexanes plus, and any other liquid hydrocarbon product except for a liquefied methane product, or any mixtures thereof, and any incidental methane included in any
Plant Products, which are separated, extracted, recovered or condensed, and saved, from Gas processed in the Processing Plant. 
 Priority
Capacity Rights. Subject to the provisions of this Agreement, the rights to use certain specified capacity of the Processing Plant, superior to the rights of other parties that do not hold Priority Capacity Rights, and which rights provide that
in the event that available capacity is curtailed or reduced, or insufficient for the needs of all parties desiring to utilize the capacity, that the gas available from all parties other than the holder(s) of the Priority Capacity Rights will be
curtailed or interrupted prior to any curtailments of the holder(s) of the Priority Capacity Rights. Rex’s Priority Capacity Rights are as provided in Article 6. 
  

 Page 3 of 27 

 Execution Version 
  

 Processing Plant. That certain skid-mounted cryogenic gas processing plant commonly referred to
as “Sarsen” to be initially installed and constructed on the site located adjacent to the existing Rex Energy refrigeration plant site in Butler County, Pennsylvania. Processing Plant facilities include, to the extent installed: cryogenic,
refrigeration and chilling equipment, absorption vessels, product separation and fractionation vessels, product storage vessels, associated condensing, heating, compressing, pumping, conveying, dehydration and other equipment and instrumentation;
any inlet compression required to boost the Gas to processing pressure; any recompression required by Processing Plant operations; any refrigeration compression required by Processing Plant operations; all structures associated with those
facilities; and including all easements, rights-of-way, and other property rights pertaining to the construction and operation of those facilities, wherever those facilities, structures, easements, rights-of-way, leases, and other property rights
are located. 
 Receipt Point. The point(s) of delivery from Rex’s wells or other sources of gas supply into the Gathering System.

 Receipt Point Thermal Content. The Thermal Content of the Gas delivered by or on behalf of Rex at a Receipt Point. 
 Redelivery Point. Each point at which Residue Gas is redelivered by Keystone to Dominion, or any other third party transporter, for the account of
Rex. 
 Residue Gas. That portion of the Gas delivered for the account of Rex at the Redelivery Point that remains after
processing and Fuel deductions. 
 Rex’s Gas. All Gas that is attributable to Interests now owned or hereafter acquired by
Rex within any portion of the Dedication Area, or is attributable to third parties that is produced from a well that is operated by Rex located within the Dedication Area and from which well Rex has the right to control, market or deliver the Gas
for processing. 
 Standard Base Conditions. A pressure of fourteen and seventy three hundredths pounds per square inch absolute (14.73
psia) at a temperature of sixty degrees Fahrenheit (60°F). 
 Taxes. All gross production, severance, conservation, ad valorem and
similar or other taxes measured by or based upon production, together with all taxes on the right or privilege of ownership of the Gas, or upon the handling, transmission, compression, processing, treating, conditioning, distribution, sale, delivery
or redelivery of the Gas, including all of the foregoing now existing or in the future imposed or promulgated. 
 Thermal Content. For
Gas, the product of the measured volume in Mcf’s multiplied by the Gross Heating Value per Mcf, adjusted to the same pressure base and expressed in MMBtus; and for a liquid, the product of the measured volume in gallons multiplied by the gross
heating value per gallon. 
  

 Page 4 of 27 

 Execution Version 
  

 ARTICLE 2: TERM 
 2.1 This Agreement shall remain in full force and effect for a “Primary Term” commencing on the date of execution and continuing for a period of ten (10) years following the
In-Service Date, and shall continue thereafter year to year, until terminated by either Party upon at least twelve (12) months prior written notice to the other Party in advance of the expiration of the Primary Term, or during any extension
thereof. 
 ARTICLE 3: PRODUCER COMMITMENTS 
 3.1 Rex hereby commits and agrees to deliver or cause to be delivered at the Receipt Points all of Rex’s Gas produced from wells in the Dedication Area; provided, however, that Rex reserves the right
to withhold from delivery any Gas (i) that Rex is required to deliver to its lessor(s) under the terms of any leases included within the Dedication Area; or (ii) that Rex reasonably requires for oil and gas producing operations within the
Dedication Area; provided, however, if prior to January 1, 2011, the Plant is not in service and capable of processing a minimum of 20 MMcf per day, then all of Rex’s Gas produced from wells in the Dedication Area shall be
released from its commitment to Keystone hereunder, and Rex shall have no further obligation to deliver Gas to Keystone pursuant to the terms of this Agreement. In the event of a material delay (i) in the acquisition of the Plant Site or the
Alternate Site (as such terms are defined in that certain Contribution Agreement by and among Rex, Keystone, and Stonehenge Energy Resources, L.P.), (ii) in obtaining any requisite permits from governmental authorities for the construction or
operation of the Processing Plant, or (iii) due to an event of Force Majeure, the Parties will agree upon a reasonable extension of the date set forth in the previous sentence. 
 3.2 The provisions of Section 3.1, above, shall be covenants running with the land, and Rex shall ensure that any conveyance, assignment, sale or other transfer of all or a portion of the Interests
owned by Rex covered by this Agreement shall be subject thereto. Rex shall require any purchaser, assignee or other transferee of any portion of those Interests to ratify this Agreement and to expressly assume and agree to the terms hereof, to the
extent of the portion of those Interests acquired from Rex by that party, in a manner consistent with the provisions of Article 16. 
 3.3 Any
separation equipment installed by or on behalf of Rex to separate liquid hydrocarbons and free water from the Gas prior to delivery at the Receipt Points shall be only conventional mechanical type gas-liquid field separators commonly used in the
industry. Except for the foregoing and the conditions set forth in Section 3.1 hereof, Rex shall not process, or cause or permit another party to process, the Gas for recovery of liquid or liquefiable hydrocarbons or other products prior to
delivery to Keystone. 
 ARTICLE 4: KEYSTONE’S COMMITMENTS 
 4.1 Commencing on the In-Service Date, Keystone shall receive all of Rex’s Gas delivered at the Receipt Points, gather that Gas to the Processing Plant, compress the Gas for processing, and process
the Gas for recovery of Plant Products (not including liquefied methane) and redeliver Rex’s Residue Gas at a pressure sufficient to enter the Redelivery Point(s). 
  

 Page 5 of 27 

 Execution Version 
  

 4.2 Keystone shall own all the appurtenances, additions, extensions, improvements, or expansions of or
to the Facilities that are constructed by Keystone, which additions shall become a part of the Facilities and shall be subject to this Agreement. 
 4.3 Subject to the terms hereof, Keystone will install, own and operate extensions of the Gathering System as necessary to connect wells producing Rex’s Gas within the Dedication Area. At such time that Rex requests a well to be
connected, Rex will furnish Keystone with information regarding the location of the well and all test results for the well. If Keystone determines that the connection of that well will not be economic under the terms of this Agreement, Keystone
shall propose terms on which such connection would be economic. If the parties are unable to agree on such terms, then Rex may, at its option, install, own and operate the necessary facilities to connect the well to the Gathering System and deliver
the Gas from such well to Keystone hereunder, and Rex shall not be charged and shall have no obligation to pay any gathering or other transportation fees for Gas being transported through such facilities installed, owned and operated by Rex.

 4.4 Keystone shall ensure that Rex’s Gas with Priority Capacity Rights that is delivered to the Processing Plant is given priority to
the available capacity of the Processing Plant in accordance with such Priority Capacity Rights. 
 4.5 It is understood and agreed that either
Party hereto may, without liability to the other Party, interrupt the operations of its facilities for the purpose of making necessary alterations, maintenance or repairs thereto or to comply with applicable regulatory requirements. Keystone will
exercise due diligence to schedule routine repair and maintenance so as to minimize disruption of service hereunder, and except in situations reasonably perceived by Keystone to be emergencies, shall use commercially reasonable efforts to provide at
least fourteen (14) days prior notice to Rex of such scheduled routine repair and maintenance. It is further understood and agreed that Rex shall, at all times, have the right to regulate the rate of production from any well as Rex determines,
in its sole discretion, necessary to optimize reservoir characteristics, maximize long-term production, or otherwise improve the economic performance of such well. 
 ARTICLE 5: RECEIPT POINT AND CONDITIONS 
 5.1 Rex shall deliver or shall cause to be
delivered Gas to Keystone at the Receipt Points. 
 5.2 Under normal operating conditions, Rex shall deliver or shall cause to be delivered Gas
hereunder to the Receipt Points at a pressure not greater than 600 psig and not less than 100 psig, or such lower pressure as exists in the Gathering System at the Receipt Points. Notwithstanding anything to the contrary herein, Rex shall have no
obligation to compress Gas prior to delivery of such Gas at the Receipt Points. 
  

 Page 6 of 27 

 Execution Version 
  

 ARTICLE 6: GAS PROCESSING 
 6.1 Following the execution of this Agreement, and subject to the other provisions of this Agreement, Keystone shall design, engineer, procure, construct, install and operate the Processing Plant.

 6.2 Rex will have Priority Capacity Rights as to 20 MMcf per day of processing capacity at the Processing Plant during the initial 12-month
period following the In-Service Date, and 40 MMcf per day of processing capacity at the Processing Plant thereafter, or at such time that the Processing Plant has capacity to process 40 MMcf per day, whichever is later. 
 6.3 Keystone will deliver to the Redelivery Point(s), all Residue Gas allocable to Rex, and Keystone shall make all arrangements, on a timely basis, for the
further transportation, marketing and disposition of such Residue Gas. 
 ARTICLE 7: GAS QUALITY 
 7.1 As measured at each Receipt Point, Gas delivered by Rex shall be of a quality that, after processing in the Processing Plant as it then currently exists,
meets the quality specifications of pipelines receiving Gas at the Redelivery Point(s), as in effect from time to time, other than for water vapor content and hydrocarbon dew point; provided that the water content of Gas delivered by Rex to the
Receipt Points shall not include free water. The receiving pipeline’s existing specifications are set forth on Exhibit B, attached hereto. 
 7.2 The Parties acknowledge that if the quality standards of the pipelines receiving Gas at the Redelivery Point(s) change, the Parties will consider whether such change is material to this Agreement and, if material, will cooperate with
each other to address such change in an manner that preserves the business and economic objectives of this Agreement. 
 7.3 If Gas tendered by
Rex should fail to meet any one or more of the above specifications from time to time, then: 
 a. Keystone may take receipt of
the non-conforming Gas, and that receipt shall not be construed as a waiver or change of standards for future Gas volumes; or 
 b. Keystone may, at its sole discretion, cease receiving the non-conforming Gas from Rex, and shall notify Rex that it will cease receiving the non-conforming Gas. If Keystone refuses to accept such non-conforming Gas from Rex, the Parties
shall negotiate with respect to the services and facilities necessary to remedy the non-conforming gas and the fees for Keystone to provide such services and facilities. If the Parties are unable to agree on such facilities, services and fees within
30 days and if Keystone refuses to accept non-conforming Gas from Rex, then all (but only that) Gas that Keystone refuses to accept for processing shall be released from this Agreement, and the Parties shall have no further obligations to each other
with respect to such non-conforming Gas. 
  

 Page 7 of 27 

 Execution Version 
  

 c. If the Gas as delivered contains contaminants not in conformance with the
specifications as described in Section 7.1, then Rex shall be responsible for, and shall reimburse Keystone for, all actual expenses, damages and costs resulting from Keystone’s receipt of such non-conforming Gas prior to the time Keystone
becomes aware of such non-conforming Gas. Keystone shall be responsible for all actual expenses, damages and costs resulting from all non-conforming Gas accepted by Keystone after Keystone becomes aware of such non-comforming Gas. 
 7.4 As long as Gas delivered by Rex at each Receipt Point meets the foregoing specifications, or if it does not meet the foregoing specifications but
Keystone nevertheless continues to receive such Gas after becoming aware of the non-conforming Gas, the Residue Gas redelivered by Keystone at the Redelivery Point(s) shall meet the quality specifications of the pipelines receiving Gas at the
Redelivery Point(s). 
 ARTICLE 8: MEASUREMENT EQUIPMENT AND PROCEDURES 
 8.1. All Gas measurements required hereunder shall be made with equipment of standard make to be furnished, installed, operated, and maintained by Keystone in accordance with the recommendations contained
in ANSI/API 2530 as then published. Rex, or others having Rex’s consent, may, at its option and expense, install and operate check measuring equipment Upstream of the measuring equipment to check the measuring equipment, provided the
installation of the check measuring equipment in no way interferes with the operation of the measuring equipment. 
 8.2 All Gas volume
measurements shall be based on an assumed atmospheric pressure of 14.4 psia, regardless of actual atmospheric pressure at which the Gas is measured. The factors used in computing Gas volumes from orifice meter measurements shall be the latest
factors published by the AGA. These factors shall include: 
 a. Basic orifice factor. 
 b. Pressure base factor based on a pressure base of 14.73 psia. 
 c. Temperature base factor based on a temperature base of 60°F. 
 d. Flowing
temperature factor, based on the flowing temperature as measured by an industry accepted recording device, if, at Keystone’s option, a recording device has been installed, otherwise the temperature shall be assumed to be 60°F. 

 

 Page 8 of 27 

 Execution Version 
  

 e. Super compressibility factor, obtained from the latest AGA Manual for the
Determination of Super Compressibility Factors for Natural Gas (AGA 8). 
 f. Specific gravity factor, based on the specific
gravity of the Gas as determined under the provisions set forth below. 
 8.3 Keystone shall test the accuracy of its measuring equipment at
least once every calendar quarter. Additional test(s) shall be promptly performed upon notification by either Party to the other. If any additional test requested by Rex indicates that no inaccuracy of more than 2% exists, at a recording rate
corresponding to the average rate of flow for the period since the last preceding test, then Rex shall reimburse Keystone for all its direct costs in connection with that additional test within 15 days following receipt of a detailed invoice and
supporting documentation setting forth those costs. 
 8.4 If, upon test, any measuring equipment is found to be in error by an amount not
exceeding 2%, at a recording rate corresponding to the average rate of flow for the period since the last preceding test, previous recordings of that equipment shall be considered correct in computing deliveries hereunder. If the measuring equipment
shall be found to be in error by an amount exceeding 2%, at a recording rate corresponding to the average rate of flow for the period since the last preceding test, then any preceding recordings of that equipment since the last preceding test shall
be corrected to zero error for any period which is known definitely or agreed upon. If the period is not known definitely or agreed upon, the correction shall be for a period extending back one-half of the time elapsed since the last test. In the
event a correction is required for previous deliveries, the volumes delivered shall be calculated by the first of the following methods which is feasible: (i) by using the registration of any check meter or meters if installed and accurately
registering; or (ii) by correcting the error if the percentage of error is ascertainable by calibration, test, or mathematical calculations; or (iii) by estimating the quantity of delivery by deliveries during periods of similar conditions
when the meter was registering accurately. 
 8.5 The composition and Gross Heating Value of any Gas stream required to be measured shall be
determined by Keystone at least once each calendar quarter, or more often if deemed necessary by Keystone, by spot samples, or by using a proportionate to flow sampler located at the point where the measurement equipment is located, by
chromatographic analysis, or by some other method mutually acceptable to the Parties. Should Rex request more frequent determinations, the cost of those determinations will be paid by Rex. 
 8.6 Each Party, at its sole risk and liability, shall have access at all reasonable hours to all facilities which are related to Gas measurement and
sampling. Each Party, at its sole risk and liability, shall have the right to be present for any installing, reading, cleaning, changing, repairing, testing, calibrating and/or adjusting of either Party’s measuring equipment. The Parties shall
cooperate in obtaining and providing telemetry and similar equipment and systems to provide measurement information to the Parties. 
  

 Page 9 of 27 

 Execution Version 
  

 ARTICLE 9: ALLOCATIONS 
 9.1 All allocations required for determining payments or fees due under this Agreement shall be conducted in accordance with the following provisions, and shall be based upon the measurements taken and
quantities determined for the applicable Accounting Period. The following definitions shall be applicable: 
 a. Processed
Thermal Content means the Receipt Point Thermal Content attributable to a particular Receipt Point LESS the Gathering System Fuel Thermal Content, the Gathering System Flare Gas Thermal Content, and the Condensate Thermal Content allocated to
that particular Receipt Point. 
 b. Receipt Point Processed Volume means the volume of Gas at the Receipt Point LESS the
volume of Gathering System Fuel, the volume of Gathering System Flare Gas, and Condensate, expressed in Gas volume, all allocated to that particular Receipt Point. 
 c. Theoretical Total Mcf of a Plant Product or of Condensate, in any stream of Gas, means the product of the measured volume in
dry Mcf’s multiplied by the mol percent of that Plant Product in the stream of Gas as determined from the chromatographic analysis provided under this Agreement, or, as applicable, of the Condensate. For the purposes of determining the mol
percent of natural gasoline or Condensate, only the pentane and heavier hydrocarbon components will be considered. 
 d. Plant
Products Thermal Content or Condensate Thermal Content attributable to each Receipt Point, or Condensate Recovery Point, as applicable, shall be determined by the summation of the products of the volumes of each Plant Product sold,
allocated to each Receipt Point, or the volume of Condensate sold allocated to the Condensate Recovery Point, as applicable, expressed in gallons, multiplied by the gross heating value per gallon of each Plant Product, or Condensate, as applicable,
using the Gross Heating Values per gallon published in the Standard Table of Physical Constants of Paraffin Hydrocarbons in GPA Publication 2145-95, “Fuel as Ideal Gas,” as the same might be revised. 
 e. Drip means liquids, including water and liquid hydrocarbons, whether or not of commercial value, which are separated from
Rex’s Gas in the Gathering System as a result of standard Gathering System operations, including the compression of gas and pigging of pipelines. Drip will be handled, recovered and disposed of by Keystone, at its expense, and Keystone will be
entitled to retain all drip and the proceeds thereof without accounting to Rex for such. 
  

 Page 10 of 27 

 Execution Version 
  

 f. Theoretical Residue Gas Thermal Content means the Processed Thermal Content
attributable to a particular Receipt Point LESS the Processing Plant Fuel Thermal Content, the Processing Plant Flare Gas Thermal Content, and the Plant Products Thermal Content attributable to that Receipt Point. 
 g. Upstream means, with respect to any particular point, the direction from which Gas is received at that point, and includes all
Receipt Points and portions of the Facilities located in the direction from which Gas flows to the particular point. 
 h.
Fuel Point or Flare Point means a point on the Gathering System where Gathering System Fuel is consumed or Gathering System Flare Gas is released. 
 i. Condensate Recovery Point means a point on the Facilities where Condensate is recovered and permanently removed from the Facilities. 
 j. Redelivery Point Gas Thermal Content means the Thermal Content of all Gas available at the Redelivery Point. 
 k. Theoretical Residue Gas Thermal Content means the Receipt Point Gas Thermal Content adjusted for water vapor, LESS Plant Product
Thermal Content and LESS the Gathering System Flare Gas Thermal Content, Gathering System Fuel Thermal Content, Processing Plant Flare Gas Thermal Content and Processing Plant Fuel Thermal Content allocated to that Receipt Point. Upon the prior
written consent of Rex, the components included in this calculation may be modified by Keystone to maintain equitable allocations on its Facilities. 
 9.2. Gathering System Fuel Thermal Content and Gathering System Flare Gas Thermal Content shall be allocated to each Receipt Point Upstream of the applicable Fuel Point or Flare Point by multiplying the Gathering System Fuel
and/or Flare Gas Thermal Content at the applicable Fuel Point or Flare Point by a fraction, the numerator of which is the Receipt Point Thermal Content attributable to each Receipt Point Upstream of the applicable Fuel Point or Flare Point, and the
denominator of which is the Receipt Point Thermal Content attributable to all Receipt Points Upstream of the applicable Fuel Point or Flare Point. 
 9.3 Condensate, excluding Drip, shall be allocated to each Receipt Point Upstream of the applicable Condensate Recovery Point by multiplying the total volume, expressed in gallons, of Condensate saved and sold from that Condensate
Recovery Point by a fraction, the numerator of which shall be the Theoretical Total Mcf of Condensate contained in the volume of Gas at each Receipt Point Upstream of the Condensate Recovery Point, and the denominator of which shall be the
Theoretical Total Mcf of Condensate contained in the volume of all Gas at each receipt point Upstream of that Condensate Recovery Point. 
 9.4
Processing Plant Fuel Thermal Content and the Processing Plant Flare Gas Thermal Content shall be allocated to each Receipt Point by multiplying the sum of the Processing Plant Fuel Thermal Content and the Processing Plant Flare Gas
Thermal Content by a fraction, the numerator of which is the Processed Thermal Content attributable to each Receipt Point, and the denominator of which is the Processed Thermal Content attributable to all Receipt Points. 
  

 Page 11 of 27 

 Execution Version 
  

 9.5 Each Plant Product shall be allocated to each Receipt Point by multiplying the total volume,
expressed in gallons, of each Plant Product saved and sold by a fraction, the numerator of which shall be the Theoretical Total Mcf of that Plant Product contained in the Processed Volume attributable to each Receipt Point, and the denominator of
which shall be the Theoretical Total Mcf of that Plant Product contained in the Processed Volume attributable to all Receipt Points. 
 9.6
Residue Gas Thermal Content shall be allocated to each Receipt Point each Accounting Period by multiplying the sum of the total actual Residue Gas Thermal Content at the Plant tailgate from all Gas delivered to the Facilities by a fraction,
the numerator of which is the Theoretical Residue Gas Thermal Content attributable to that Receipt Point and the denominator of which is the Theoretical Residue Gas Thermal Content attributable to all receipt points, including Producer’s and
others’. 
 9.7 It is anticipated that compression and compression cooling, not including the propane condenser, in the Processing Plant
shall be engine-driven, fueled by Gas. Upon the mutual agreement of the Parties, which agreement will not be unreasonably withheld or delayed, Keystone may replace some engines with electrical motors. Costs for electric power consumed by the
electrical motors, together with all other electric power consumed by the Facilities, will be allocated to all Gas delivered to the Facilities, and the portion allocated to Rex shall be deducted from Rex’s compensation under this Agreement. The
allocation shall be made to each Receipt Point by multiplying the total electric power cost for the Accounting Period by a fraction, the numerator of which is the Receipt Point volume (in Mcf) attributable to such Receipt Point and the denominator
of which is the Receipt Point volume (in Mcf) attributable to all Receipt Points delivering Gas to the Facilities during the Accounting Period. 
 ARTICLE 10: FEES AND CONSIDERATION 
 10.1 As full consideration for the Gas delivered hereunder, Keystone shall pay and/or
deliver to Rex the following, which payment and delivery shall entitle Keystone to retain for its own account and benefit all portions of Rex’s Gas not redelivered hereunder, including Plant Products, together with all components thereof which
are recovered in the Facilities. Except as provided in Section 10.2 below, Keystone shall have the exclusive right to market all Plant Products and Residue Gas allocable to Rex: 
 a. A sum equal to [REDACTED]* of the “Net Sales Price” per gallon, as defined below, for each gallon of
individual Plant Products allocated to Rex. 
 b. The “Net Sales Price” per gallon of each individual Plant
Product allocated to Rex’s Gas shall be the weighted average of the net price per gallon received by Keystone for the total volume of each individual Plant Product sold at the Facilities during the relevant Accounting Period. There shall be
deducted from the actual gross sales price of such Plant Products the cost of transportation and tank car rentals, marketing fees and other actual out-of-pocket expenses

  

 Page 12 of 27 

 Execution Version 
  

 
incurred by Keystone from third parties who are not Affiliates of Keystone prior to sale of Plant Products and Taxes (excluding income taxes) as incurred to determine a net price (FOB the
Processing Plant) for such sale. If any of the Plant Products are stored offsite from the Processing Plant, then such Plant Products will be deemed to have been produced on the day such Plant Products are moved to offsite storage and will be deemed
to have been sold from such offsite storage on a first-in, first-out basis. The Net Sales Price shall be paid to Rex at such time as such Plant Products are sold from offsite storage, based on the Net Sales Price in effect at that time. 

c. The Residue Gas Value. 
 d. As used herein “Residue Gas Value” means an amount of money equal to [REDACTED]* of the Residue Gas Thermal Content allocated to Rex’s Gas, multiplied by the WASP Price, as
hereinafter defined. 
 e. As used herein “WASP Price”, for Residue Gas, means the net weighted average sales
price received by Keystone for the sale of Residue Gas from the Facilities during the Accounting Period in which Rex’s Gas was produced, expressed in dollars per MMBtu. The “WASP Price” shall be net of any costs and expenses incurred
by Keystone from third parties who are not Affiliates of Keystone in the selling and marketing of the Residue Gas, including, but not limited to, Taxes (excluding ad valorem and income taxes), compression, gathering and transportation fees to
determine the WASP Price (FOB the Processing Plant). 
 f. If in any Accounting Period, the volume of Gas delivered to Keystone
by Rex at the Receipt Points is less than an amount equal to the product of the then applicable Priority Capacity Rights multiplied by the number of “Operational Days” in the Accounting Period (“Monthly Demand Volume”),
then, in addition to any other amounts due hereunder, Rex will pay Keystone an amount equal to the difference between the Monthly Demand Volume and the actual deliveries during the Accounting Period, multiplied by [REDACTED]* per Mcf
(“Demand Fee”). As used herein, “Operational Days” means Days during which the Processing Plant was in operation with available capacity at least equal to all the Priority Capacity Rights of Rex. 
 g. In addition to all other compensation due Keystone hereunder, Rex shall pay Keystone a Gathering Fee, initially equal to [REDACTED]*
per Mcf of Rex’s Gas as measured at the Receipt Points. 
  

 Page 13 of 27 

 Execution Version 
  

 10.2 Rex shall have the right to take all or a portion of Residue Gas and/or Plant Products,
attributable to Rex’s Gas, in kind, subject to the following requirements: 
 a. Rex must provide Keystone with at least six
(6) months prior written notice of its election to take Residue Gas and/or Plant Products in kind, provided that if Keystone has, before it receives Rex’s notice, entered into any contractual arrangements for the sale of any of the Residue
Gas or Plant Products for a term that ends after the end of the six (6) month notice period (“Prior Sales Arrangement”), then Rex’s right to take such Residue Gas and Plant Products in kind shall not begin until the end of
such Prior Sales Arrangement with respect to the applicable Residue Gas and/or Plant Products, but in no event longer than 12 months following Rex’s notice to take in kind. Such notice shall identify the types and volumes of Plant Products to
be taken in kind, and shall identify the effective date of such election, provided that the effective date shall be the first day of a calendar month. Once the election is made and becomes effective, such election shall remain in effect, and Rex
shall be required to continue to take such portion of the Residue Gas and/or Plant Products in kind, continuously for at least 12 months. 
 b. Upon the election of Rex to take Plant Products in kind, Rex will make arrangements for the sale, transportation or other disposition of the Plant Products in a manner that does not require Keystone to
provide storage for those Plant Products beyond two days after the day on which the Plant Products were produced. For Plant Products produced on any day (“Non-Take Day”) that Rex fails to make arrangements for the sale,
transportation or other disposition of such Plant Products within two days after such Plant Products are produced, Keystone shall have the option (exercisable by giving notice and remitting payment to Rex) to purchase such Plant Products from Rex;
provided that if such option is not exercised within 5 business days after the Non-Take Day Rex may thereafter take delivery of any of such Plant Products as to which such option has not been exercised. The purchase price for those Plant Products
shall be the lowest Net Sales Price received for each respective Plant Product by Keystone on the Non-Take Day; provided, if no sales were made by Keystone on the Non-Take Day, then the purchase price will be the lowest Net Sales Price received for
each respective Plant Product by Keystone on the day prior to and the day after the Non-Take Day. 
  

	10.3	[REDACTED]*. 

 ARTICLE 11: PAYMENTS

 11.1 Keystone shall provide Rex with a statement explaining fully how all consideration due (including deductions) under the terms of this
Agreement was determined not later than the last day of the Accounting Period following the Accounting Period for which the consideration is due. 
 11.2 Keystone shall deduct fees owed by Rex under this Agreement from amounts otherwise due Rex for Plant Products and Residue Gas, and the net amount remaining will be paid no later than the last day of the Accounting Period following the
Accounting Period during which the Gas was delivered hereunder. During any Accounting Period, if no amounts are otherwise due Rex hereunder, then Rex shall pay Keystone within thirty (30) days of receipt of the statement setting forth such
amount. 
  

 Page 14 of 27 

 Execution Version 
  

 11.3 Either Party, on 30 days prior written notice, shall have the right at its expense, at reasonable
times during business hours, to audit the books and records of the other Party to the extent necessary to verify the accuracy of any statement, allocation, measurement, computation, charge, or payment made under or pursuant to this Agreement. The
scope of any audit shall be limited to the 24 month period immediately prior to the month in which notice is given (“Audit Period”). However, no audit may include any time period for which a prior audit hereunder was conducted, and
no audit may occur more frequently than once each 12 months. All statements, allocations, measurements, computations, charges, or payments made in any period prior to the Audit Period shall be conclusively deemed true and correct and shall be final
for all purposes. To the extent that the foregoing varies from any applicable statute of limitations, the Parties expressly waive all such other applicable statutes of limitations. The Parties acknowledge and agree that, in connection with any audit
hereunder, Keystone shall not be required to disclose to Rex the names of other Keystone customers but shall disclose to Rex the settlement terms for those customers to enable Rex to determine whether Keystone has complied with its agreement under
Section 10.3. 
 ARTICLE 12: FORCE MAJEURE 
 12.1 In the event a Party is rendered unable, wholly or in part, by Force Majeure (as hereinafter defined), to carry out its obligations under this Agreement, other than the obligation to make any
payments due hereunder, the obligations of that Party, so far as they are affected by Force Majeure, shall be suspended from the inception and during the continuance of the inability, and the cause of the Force Majeure, as far as possible, shall be
remedied with reasonable diligence. The Party affected by Force Majeure shall provide the other Party with written notice of the Force Majeure event, with reasonably full detail of the Force Majeure within a reasonable time after the affected Party
learns of the occurrence of the Force Majeure event. The settlement of strikes, lockouts, and other labor difficulty shall be entirely within the discretion of the Party having the difficulty, and nothing herein shall require the settlement of
strikes, lockouts, or other labor difficulty. As used herein, “Force Majeure” shall mean any cause or condition not within the control of the Party claiming suspension and which, by the exercise of commercially reasonable diligence,
such Party is unable to prevent or overcome, and, without limiting the generality of the foregoing, specifically includes major equipment failures, inabilities or delays in obtaining requisite permits, consents and authorizations, and delays
occasioned by governmental actions. Notwithstanding anything to the contrary herein, in the event any Party claims suspension of its obligations under this Agreement due to an event of Force Majeure for more than 180 days during any 365-day period,
then the Party not claiming such event of Force Majeure shall be entitled to terminate this Agreement upon 10 days written notice to the Party claiming such event of Force Majeure. 
  

 Page 15 of 27 

 Execution Version 
  

 ARTICLE 13: LIABILITY AND INDEMNIFICATION 
 13.1 As among the Parties hereto, Rex and any of its designees shall be in custody, control and possession of the Gas hereunder, including any portion
thereof which accumulates as liquids, until that Gas is delivered to the Receipt Points, and after any portion of the Gas is redelivered to or for the account of Rex at a Redelivery Point. Rex shall only be in custody, control and possession of
Plant Products upon delivery from Keystone to or for the account of Rex pursuant to Section 10.2. 
 13.2 As among the Parties hereto,
Keystone and any of its designees shall be in custody, control and possession of the Gas hereunder, including any portion thereof which accumulates as liquids, when that Gas is delivered at the Receipt Points and until the Gas is redelivered to or
for the account of Rex at a Redelivery Point. Keystone shall also be in custody, control and possession of Plant Products until they are redelivered to or for the account of Rex as provided herein. 
 13.3 Each Party (“Indemnifying Party”) hereby covenants and agrees with the other Party, and its Affiliates, and each of their directors,
officers and employees (“Indemnified Parties”), that except to the extent caused by the Indemnified Parties’ gross negligence or willful conduct, the Indemnifying Party shall protect, defend, indemnify and hold harmless the
Indemnified Parties from, against and in respect of any and all Losses incurred by the Indemnified Parties to the extent those Losses (i) arise from claims brought by any of the Indemnifying Party’s employees, its contractors or
subcontractors, or their employees for Losses due to bodily injury, death, or damage to property or (ii) are not covered by clause (i) and arise from or are related to: (a) the Indemnifying Party’s facilities and the ownership or
operation thereof; or (b) the Indemnifying Party’s possession and control of the Gas and Plant Products. 
 ARTICLE 14: TITLE 

 14.1 Rex represents and warrants that it owns, or has the right to commit, all Gas committed under this Agreement and to deliver that Gas to
the Receipt Points for the purposes of this Agreement, free and clear of all liens, encumbrances and adverse claims. If the title to Gas delivered by Rex hereunder is disputed or is involved in any legal action, Keystone shall have the right to
withhold payment (without interest), or cease receiving the Gas, to the extent of the interest disputed or involved in legal action, during the pendency of the action or until title is freed from the dispute, or until Rex furnishes, or causes to be
furnished, indemnification to save Keystone harmless from all claims arising out of the dispute or action, with surety reasonably acceptable to Keystone. Rex hereby indemnifies Keystone against and holds Keystone harmless from any and all Losses
arising out of or related to any breach of the foregoing representation and warranty. 
 14.2 Title to all Gas shall remain in Rex until such
time as the Gas is sold. Title to the Plant Products, other than the Plant Products taken in kind by Rex pursuant to this Agreement, shall remain in Rex until such time as the Plant Products are sold. Title to the Plant Products taken in kind by Rex
shall remain in Rex until such Plant Products are sold or are purchased by Keystone under the provisions of Section 10.1(b). 
  

 Page 16 of 27 

 Execution Version 
  

 ARTICLE 15: ROYALTY AND TAXES 
 15.1 Rex shall have the sole and exclusive obligation and liability for the payment of all persons due any proceeds derived from the Gas delivered under this Agreement, including royalties, overriding
royalties, and similar interests, in accordance with the provisions of the leases or agreements creating those rights to proceeds. In no event will Keystone have any obligation to those persons due any of those proceeds of production attributable to
the Gas under this Agreement. 
 15.2 Rex shall pay and be responsible for all Taxes levied against or with respect to Rex’s Gas delivered
or services provided to Rex under this Agreement, except for any Keystone local, state or federal income taxes associated with payments by Rex in cash or in kind to Keystone for such services and except for any ad valorem taxes assessed with respect
to the Facilities and all Taxes levied against or with respect to the 8% share of Gas and Plant Products allocated to Rex that Keystone retains for its own account and benefit as provided in Section 10.1. to the extent that such Gas and Plant
Products or the proceeds thereof are subject to such Taxes. Keystone shall under no circumstances become liable for those Taxes for which Rex is responsible, unless designated to remit those Taxes on behalf of Rex by any duly constituted
jurisdictional agency having authority to impose such obligations on Keystone, in which event the amount of those Taxes remitted on Rex’s behalf shall (a) be reimbursed by Rex upon receipt of invoice, with corresponding documentation from
Keystone setting forth such payments, or (b) deducted from amounts otherwise due Rex under this Agreement. 
 15.3 Rex hereby agrees to
defend and indemnify and hold Keystone harmless from and against any and all Losses arising from the payments made by Rex in accordance with Sections 15.1 and 15.2, above, including, without limitation, Losses arising from claims for the nonpayment,
mispayment, or wrongful calculation of those payments. 
  

 Page 17 of 27 

 Execution Version 
  

 ARTICLE 16: ASSIGNMENTS 
 16.1 This Agreement shall extend to and be binding upon the parties hereto, their successors, and assigns. Subject to the provisions below, this Agreement and the rights, duties or obligations of the
parties hereunder may be assigned or conveyed in whole; provided, however, that except as set forth in the following sentence, neither Party shall assign or transfer this Agreement and any rights, duties or obligations hereunder, without the prior
written consent of the other Party, which consent shall not be unreasonably withheld. Either Party may make such an assignment or transfer to an Affiliate without seeking the prior written consent of the other Party. A reasonable basis for
withholding consent may include (i) the financial condition of the assignee raising reasonable concern relating to its ability to perform under this Agreement, or (ii) concerns regarding the administration of this Agreement among multiple
assignees of Rex unless the assignees appoint an agent to represent them in connection with this Agreement in a manner reasonably satisfactory to the other Party. All assignments and conveyances of either the wells and leaseholds that are covered by
this Agreement or the Facilities shall be subject to this Agreement, including the foregoing provisions of this Article 16. No assignment shall relieve the assignor of any of its duties or liabilities hereunder which arose prior to such assignment,
but the assignee shall assume all duties and obligations of the assignor arising from and after such assignment and the assignor shall be relieved of such duties and obligations arising from and after such assignment. No transfer of, or succession
to, the interest of any Party hereto, either in whole or partially, shall affect or bind the other Party until the first day of the month following the month in which the other Party shall have received written notification thereof. 
 ARTICLE 17: MISCELLANEOUS 
 17.1 The failure
of any Party hereto to exercise any right granted hereunder shall not impair nor be deemed a waiver of that Party’s privilege of exercising that right at any subsequent time or times. 
 17.2 This Agreement shall be governed by, construed, and enforced in accordance with the laws of the State of Pennsylvania without regard to choice of law
principles. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. 
  

 Page 18 of 27 

 Execution Version 
  

	17.3	Dispute Resolution. 

 a. Dispute.
Any controversy, claim, deadlock or dispute between the Parties arising out of, relating to or in connection with this Agreement (a “Dispute”), and that is not otherwise settled by agreement between the Parties, shall be exclusively and
finally resolved pursuant to the provisions and procedures set forth in this Section 17.3. Without limiting the generality of the first sentence of this Section, the following shall be considered Disputes for this purpose: (a) all
questions relating to the interpretation or breach of this Agreement, (b) all questions relating to any representations, negotiations and other proceedings leading to the execution of this Agreement and (c) all questions regarding the
application of this Section 17.3 and the arbitration provisions contained herein. Notwithstanding the foregoing provisions of this Section 17.3, any legal action for a preliminary injunction or other prejudgment relief will be resolved by
the arbitrator appointed in accordance with Section 17.3; provided, that, at any time before the arbitrator has been appointed, any Party may seek a preliminary injunctive or other prejudgment relief from a Pennsylvania court of competent
jurisdiction to the extent necessary to preserve the status quo or to preserve such Party’s ability to obtain meaningful relief pending the outcome of the arbitration proceeding under this Section 17.3. Any Party may bring an action in a
Pennsylvania court of competent jurisdiction to compel arbitration of any Dispute after the procedure under Section 17.3(b) is exhausted; provided, that to the fullest extent permitted by law, each Party hereby waives and relinquishes any right
to compel the resolution of any substantive issues regarding a Dispute in any court of competent jurisdiction, or to request any other relief from a court of competent jurisdiction except as specifically set forth in this Section 17.3.

 b. Executive Mediation. In the event of any Dispute, upon written request of any Party, such Dispute shall immediately be
referred to one representative of the executive management designated by each Party in respect of such Dispute who is authorized to settle such Dispute. Such representatives shall promptly meet in a good faith effort to resolve such Dispute. If the
representatives designated by the relevant Dispute Parties pursuant to this Section 17.3(b) do not resolve such Dispute within ten (10) days after such written request, such Dispute shall be exclusively and finally resolved by binding
arbitration in accordance with the provisions and procedures set forth in Section 17.3(c). 
 c. Arbitration. The
arbitration shall be administered by the American Arbitration Association, or a successor organization (the “AAA”), under its Commercial Arbitration Rules. The arbitration shall be conducted by a single arbitrator chosen under the
AAA’s Commercial Arbitration Rule and such arbitrator shall have at least ten (10) years experience practicing in the oil and gas industry. 
 (i) The site of arbitration shall be Pittsburgh, Pennsylvania, unless otherwise agreed by the Parties. 
  

 Page 19 of 27 

 Execution Version 
  

 (ii) The Parties shall diligently and expeditiously proceed with arbitration. The
arbitrator shall be instructed to render a written decision within forty-five (45) days after the conclusion of the hearing or the filing of such briefs as may be authorized by the arbitrator, subject to any reasonable delay due to unforeseen
circumstances. Except to the extent the Parties’ remedies may be limited by the terms of this Agreement, the arbitrator shall be empowered to award any remedy available under the laws of the State of Pennsylvania including monetary damages and
specific performance. The arbitrator shall not have the power to amend or add to this Agreement. The award of the arbitrator shall be in writing with reasons for such award and signed by the arbitrator. Any award rendered shall be final and binding.
Judgment rendered by the arbitrator may be entered in any court having jurisdiction thereof 
 (iii) The Parties hereto hereby
waive any rights to appeal or to review of such award by any court or tribunal. The Parties further undertake to carry out without delay the provisions of any arbitral award or decision, and each agrees that any such award or decision may be
enforced by any competent tribunal. 
 (iv) The costs of such arbitration shall be determined by and allocated between the
Parties by the arbitrator in its award. This Section 17.3(c) constitutes an independent contract to arbitrate all disputes between the Parties, including disputes regarding contract formation and whether a Party is entitled to quasi-contractual
or quantum meruit recovery from another Party. Unless otherwise agreed in writing, the Parties shall continue to perform their respective obligations hereunder during any arbitration proceeding by the Parties in accordance with this
Section 17.3(c). 
 17.4 The Parties agree that (a) Keystone shall keep confidential all information provided by Rex to Keystone
pertaining to Rex’s exploration and development plans, production forecasts, acreage positions and other non-public information of Rex, and (b) the Parties shall keep the terms of this Agreement confidential and not disclose the same to
any other persons, firms or entities without prior written consent (of Rex in the case of (a) or the other Party in the case of (b)); provided, the foregoing shall not apply to disclosures compelled by law or court order; or to disclosures to a
Party’s Affiliates or such Party’s or its Affiliates’ employees, directors, officers, partners, prospective partners or financing sources, financial advisors, consultants, attorneys, banks, or institutional investors provided those
persons, firms or entities likewise agree to keep this Agreement confidential. 
 17.5 Any change, modification or alteration of this Agreement
shall be in writing, signed by the Parties; and, no course of dealing between the Parties shall be construed to alter the terms of this Agreement. 
  

 Page 20 of 27 

 Execution Version 
  

 17.6 All exhibits and appendices to this Agreement are hereby incorporated into and made part of this
Agreement for all purposes. This Agreement, including all exhibits and appendices, contains the entire agreement between the Parties with respect to the subject matter hereof, and there are no oral or other promises, agreements, warranties,
obligations, assurances, or conditions precedent, affecting it. 
 17.7 The terms and provisions of this Agreement are for the sole benefit of
Keystone and Rex, and no third party is intended to benefit herefrom other than the Indemnified Parties. 
 17.8 NO BREACH OF THIS AGREEMENT
OR CLAIM FOR LOSSES UNDER ANY INDEMNITY OBLIGATION CONTAINED IN THIS AGREEMENT SHALL CAUSE ANY PARTY TO BE LIABLE FOR, NOR SHALL LOSSES INCLUDE, ANY DAMAGES OTHER THAN ACTUAL AND DIRECT DAMAGES, AND EACH PARTY EXPRESSLY WAIVES ANY RIGHT TO CLAIM ANY
OTHER DAMAGES, INCLUDING, WITHOUT LIMITATION, CONSEQUENTIAL, SPECIAL, INDIRECT, PUNITIVE OR EXEMPLARY DAMAGES. 
 17.9 This Agreement shall
be subject to all applicable federal, state, and local laws, rules, regulations, and orders affecting either Rex or Keystone and that pertain to the Facilities or the operation thereof. In the event any one or more of the provisions of this
Agreement shall be found to be violative of any applicable order, rule, or regulation of any regulatory body having jurisdiction, or of any valid law of the United States or any state or other governmental entity having jurisdiction, such provision
or provisions shall be deemed to be modified to the extent necessary to comply with such order, rule, regulation, or law; provided, however, that in the event that a material term under this Agreement is so modified, the Parties will, timely and in
good faith, revise and amend this Agreement in a manner which preserves, as closely as possible, each Party’s business and economic objectives as expressed by the Agreement prior to such modification. 
 17.10 Unless otherwise provided herein, any notice, request or demand which either Party desires to serve upon the other regarding this Agreement shall be
made in writing and shall be considered as delivered when hand delivered, or when delivery is confirmed by pre-paid delivery service (such as FedEx, UPS, DHL or a similar delivery service), or when sent via email, or, if mailed by United States
certified mail, postage prepaid, three (3) days after mailing, or, if sent by facsimile transmission, when receipt is confirmed by the equipment of the transmitting Party; provided, if sent by email after normal business hours or if receipt of
a facsimile transmission is confirmed after normal business hours, receipt shall be deemed to be the next Business Day. Such notice shall be given to the other Party at the following address, or to such other address as either Party shall designate
by written notice to the other: 
 If to Rex: 
 R.E. GAS DEVELOPMENT, LLC 
 476 Rolling Ridge Drive, Suite 300 
 State College, PA 16801 
 Attention: Timothy Beattie 
 Phone: (814) 278-7267 
 Fax: (814) 278-7286 
  

 Page 21 of 27 

 Execution Version 
  

 If to Keystone: 
 KEYSTONE MIDSTREAM SERVICES, LLC 
 10355 Westmoor Drive, Suite 250 
 Westminster, CO 80021-2579 
 Attention: Michael Brinkmeyer 
 Phone: (303) 991-1480 
 Fax: (303) 451-7394 
 17.11 This Agreement may be executed in any number of counterparts, each of which shall be considered an original, and all of which shall be considered one
instrument. This Agreement shall not become effective unless and until executed by all Parties. 
 ARTICLE 18: REX GUARANTY 

18.1 Payment Guaranty. Guarantor unconditionally, absolutely, continually and irrevocably guarantees, as principal and not as surety, to Keystone
the punctual and complete payment in full when due of all amounts due from Rex under the Agreement (collectively, the “Rex Payment Obligations”). Guarantor agrees that Keystone shall be entitled to enforce directly against the
Guarantor any of the Rex Payment Obligations. 
 18.2 Guaranty Absolute. Guarantor hereby guarantees that the Rex Payment Obligations will
be paid strictly in accordance with the terms of the Agreement. The obligations of the Guarantor under this Agreement constitute a present and continuing guaranty of payment, and not of collection or collectability. The liability of the Guarantor
under this Agreement shall be absolute, unconditional, present, continuing and irrevocable irrespective of: 
 a. any assignment
or other transfer of the Agreement or any of the rights thereunder of Keystone; 
 b. any amendment, waiver, renewal, extension
or release of or any consent to or departure from or other action or inaction related to the Agreement; 
 c. any acceptance by
Keystone of partial payment or performance from Rex; 
 d. any bankruptcy, insolvency, reorganization, arrangement, composition,
adjustment, dissolution, liquidation or other like proceeding relating to Keystone or any action taken with respect to the Agreement by any trustee or receiver, or by any court, in any such proceeding; 
  

 Page 22 of 27 

 Execution Version 
  

 e. any absence of any notice to, or knowledge of, the Guarantor, of the existence or
occurrence of any of the matters or events set forth in the foregoing subsections (a) through (d); or 
 f. any other
circumstance which might otherwise constitute a defense available to, or a discharge of, a guarantor. 
 18.3 Waiver. The Guarantor
hereby waives promptness, diligence, presentments, protests and notice of acceptance and any other notice relating to any of the Rex Payment Obligations and any requirement for Keystone to protect, secure, perfect or insure any security interest or
lien or any property subject thereto or exhaust any right or take any action against Rex, any other entity or any collateral. 
 18.4
Continuing Guaranty. This Article 18 is a continuing guaranty and shall (i) remain in full force and effect until the first to occur of the indefeasible payment in full of all of the Rex Payment Obligations, (ii) be binding upon the
Guarantor and each of its respective successors and assigns and (iii) inure to the benefit of and be enforceable by Keystone and its respective successors, transferees and assigns. 
  

 Page 23 of 27 

 IN WITNESS WHEREOF, the Parties have duly executed this Agreement as of the date set forth above.

  

									
	R.E. GAS DEVELOPMENT, LLC	 		 	KEYSTONE MIDSTREAM SERVICES, LLC
					
	By:	 	/s/ Benjamin W. Hulburt	 		 	By:	 	/s/ Charles Wilkinson
	Name:	 	Benjamin W. Hulburt	 		 	Name:	 	Charles Wilkinson
	Title:	 	President and Chief Executive Officer	 		 	Title:	 	President of Stonehenge Energy Resources, L.P., Stonehenge is Manager of Keystone Midstream Services, LLC
			
	 ACKNOWLEDGED AND AGREED
 EXCLUSIVELY FOR THE PURPOSES OF
 ARTICLE 18 HEREOF:
	 		 	
			
	REX ENERGY CORPORATION	 		 	
					
	By:	 	/s/ Benjamin W. Hulburt	 		 		 	
	Name:	 	Benjamin W. Hulburt	 		 		 	
	Title:	 	President and Chief Executive Officer	 		 		 	

 LIST OF EXHIBITS 
  

			
	EXHIBIT A	  	DEDICATION AREA
		
	EXHIBIT B	  	DOMINION TRANSMISSION SPECIFICATIONS

 EXHIBIT A 
 DEDICATION AREA 
 [REDACTED]* 

 EXHIBIT B 
 DOMINION TRANSMISSION SPECIFICATIONS 
 Quality Specifications
of the downstream pipeline receiving Residue Gas from Keystone: 
 A. Hydrogen Sulfide and Total Sulfur: The gas shall contain
not more than one quarter (1/4) grain of hydrogen sulfide per one hundred cubic feet and not more than twenty grains total sulfur or sulfur compounds per one hundred cubic feet. 
 B. Carbon Dioxide and Nitrogen: The gas shall contain not more than three percent by volume of carbon dioxide, not more than four percent by
volume of nitrogen, and shall contain not more than five percent by volume of combined non-hydrocarbon gases including, but not limited to, carbon dioxide, nitrogen and oxygen. 
 C. Oxygen: The gas shall not contain in excess of two-tenths of one percent by volume of oxygen, and the parties agree to exercise every
reasonable effort to keep the gas completely free of oxygen. 
 D. Dust, Gums, etc.: The gas shall be free of objectionable
odors, dust, gum, dirt, impurities and other solid or liquid or hazardous matter which might interfere with its merchantability or cause injury to or interfere with proper operation of the Facilities, lines, regulators, meters or other appliances
through which it flows. 
 E. Bacteria: The gas and any associated liquids shall not contain any active bacteria or bacterial
agent capable of contributing to or causing operational problems. Bacteria or bacterial agents include, but are not limited to, sulfate reducing bacteria (SRB) and acid producing bacteria (APB). If evidence of bacteria is discovered, Rex shall, upon
Keystone’s request, test for bacteria or bacterial agents. Such tests shall be conducted on samples taken from the meter run or other appurtenant piping using American Petroleum Institute (API) test method API-RP38 or any other test method
acceptance to Keystone which is currently available or may become available at any time during the term.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00166-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00166-of-00352.parquet"}]]