Document:

First Supplemental Indenture

 Exhibit 4.2 
  
  
 PETROLEUM DEVELOPMENT CORPORATION

 as the Company 
 and 
 THE BANK OF NEW YORK 
 as Trustee 
 FIRST SUPPLEMENTAL INDENTURE 
 Dated as of February 8, 2008 
 To 
 INDENTURE 
 Dated as of February 8, 2008 
 12% SENIOR NOTES DUE 2018 
  
  

 TABLE OF CONTENTS 
  

 

			
	 	  	Page
	 ARTICLE 1 Relation to Indenture; Definitions
	  	1
	 SECTION 1.01. Relation to Indenture.
	  	1
	 SECTION 1.02. Definitions.
	  	1
	 SECTION 1.03. General References.
	  	1
		
	 ARTICLE 2 The Series of Securities
	  	2
	 SECTION 2.01. The Form and Title of the Securities.
	  	2
	 SECTION 2.02. Amount.
	  	2
	 SECTION 2.03. Stated Maturity.
	  	2
	 SECTION 2.04. Interest and Interest Rates.
	  	2
	 SECTION 2.05. Initial Depositary; Paying Agent; Place of Payment
	  	3
	 SECTION 2.06. Optional Redemption.
	  	3
	 SECTION 2.07. Mandatory Redemption.
	  	3
	 SECTION 2.08. Defeasance and Discharge; Covenant Defeasance.
	  	3
	 SECTION 2.09. Subsidiary Guarantees
	  	3
	 SECTION 2.10. Registration Rights Agreement
	  	4
	 SECTION 2.11. Global Securities
	  	4
		
	 ARTICLE 3 Amendments to Original Indenture
	  	4
	 SECTION 3.01. Defined Terms.
	  	4
	 SECTION 3.02. References to Liquidated Damages.
	  	34
	 SECTION 3.03. Registration, Registration of Transfer and Exchange.
	  	34
	 SECTION 3.04. Defaults and Remedies.
	  	46
	 SECTION 3.05. Notice of Defaults.
	  	49
	 SECTION 3.06. Compensation and Reimbursement.
	  	50
	 SECTION 3.07. Merger, Consolidation or Sale of Substantially All Assets.
	  	50
	 SECTION 3.08. Redemption of Notes.
	  	52
	 SECTION 3.09. Redemption Upon Equity Offering
	  	53
	 SECTION 3.10. Covenant Defeasance.
	  	53
	 SECTION 3.11. Subsidiary Guarantees of the Notes.
	  	54
		
	 ARTICLE 4 Additional Covenants
	  	55
	 SECTION 4.01. Reports.
	  	56
	 SECTION 4.02. Taxes.
	  	57
	 SECTION 4.03. Restricted Payments.
	  	57
	 SECTION 4.04. Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries.
	  	61
	 SECTION 4.05. Incurrence of Indebtedness and Issuance of Preferred Stock.
	  	64
	 SECTION 4.06. Asset Sales.
	  	68
	 SECTION 4.07. Transactions with Affiliates.
	  	71
	 SECTION 4.08. Limitation on Liens.
	  	73
	 SECTION 4.09. Offer to Repurchase upon a Change of Control.
	  	74
	 SECTION 4.10. Designation of Restricted and Unrestricted Subsidiaries.
	  	76
	 SECTION 4.11. Subsidiary Guarantees.
	  	76

  

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 TABLE OF CONTENTS 
  

			
	 	  	Page
	 ARTICLE 5 Miscellaneous
	  	77
	 SECTION 5.01. Certain Trustee Matters.
	  	77
	 SECTION 5.02. Continued Effect.
	  	77
	 SECTION 5.03. Governing Law.
	  	77
	 SECTION 5.04. Counterparts.
	  	78

 EXHIBITS 
  

			
	Exhibit A:	 	FORM OF NOTE
	Exhibit B:	 	FORM OF CERTIFICATE OF TRANSFER
	Exhibit C:	 	FORM OF CERTIFICATE OF EXCHANGE
	Exhibit D:	 	FORM OF CERTIFICATE FROM ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR
	Exhibit E:	 	FORM OF SUPPLEMENTAL INDENTURE

  

 ii 

 FIRST SUPPLEMENTAL INDENTURE, dated as of February 8, 2008 (this “First Supplemental
Indenture”), by and between PETROLEUM DEVELOPMENT CORPORATION, a corporation duly organized and existing under the laws of the State of Nevada (the “Company”) and THE BANK OF NEW YORK, a New York banking
corporation, as trustee under the Indenture referred to below (in such capacity, the “Trustee”). 
 RECITALS OF THE
COMPANY 
 WHEREAS, the Company and the Trustee have heretofore entered into an Indenture, dated as of February 8, 2008 (the
“Original Indenture”) (the Original Indenture, as supplemented from time to time, including without limitation pursuant to this First Supplemental Indenture, being referred to herein as the “Indenture”); and

 WHEREAS, under the Original Indenture, a new series of Securities (as defined in the Original Indenture) may at any time be established by
the Board of Directors of the Company, in accordance with the provisions of the Original Indenture, and the terms of such series may be established by an indenture supplemental to the Original Indenture; and 
 WHEREAS, the Company proposes to create under the Indenture a new series of Securities; 
 NOW, THEREFORE, in consideration of the premises, agreements and obligations set forth herein and for other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the parties hereto hereby agree, for the equal and proportionate benefit of all Holders of the Notes (as defined below), as follows: 
 ARTICLE 1 
 RELATION TO INDENTURE;
DEFINITIONS 
 SECTION 1.01. Relation to Indenture. 
 With respect to the Notes, this First Supplemental Indenture constitutes an integral part of the Indenture. 
 SECTION 1.02. Definitions. 
 For all purposes of this First Supplemental Indenture, capitalized terms used herein and not otherwise defined herein shall have the meanings assigned thereto in the Original Indenture. 
 For all purposes of this First Supplemental Indenture: 
 “Company” has the meaning set forth in the preamble hereof. 
 “DTC” shall
have the meaning set forth in Section 2.05 hereof. 
 “Indenture” has the meaning set forth in the recitals hereof.

 “Trustee” has the meaning set forth in the preamble hereof. 
 SECTION 1.03. General References. 
 Unless otherwise specified or unless the context otherwise requires, (i) all references in this First Supplemental Indenture to Articles and Sections refer to the corresponding Articles and Sections of this First
Supplemental Indenture and (ii) the terms “herein”, “hereof”, “hereunder” and any other word of similar import refers to this First Supplemental Indenture. 
  

 First Supplemental Indenture 

 ARTICLE 2 
 THE SERIES OF SECURITIES 
 SECTION 2.01. The Form and Title of the Securities. 
 There is hereby established a new series of
Securities to be issued under the Indenture and to be designated as the Company’s 12% Senior Notes due 2018 (the “Notes”). The Notes shall be substantially in the form attached as Exhibit A hereto, in each case with
such appropriate insertions, omissions, substitutions and other variations as are required or permitted by the Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon as the
Company may deem appropriate or as may be required or appropriate to comply with any laws or with any rules made pursuant thereto or with the rules of any securities exchange or automated quotation system on which the Notes may be listed or traded,
or to conform to general usage. 
 The Notes shall be executed, authenticated and delivered in accordance with the provisions of, and shall
in all respects be subject to, the terms, conditions and covenants of the Original Indenture as supplemented by this First Supplemental Indenture (including the form of Note attached as Exhibit A hereto (the terms of which are
incorporated in and made a part of this First Supplemental Indenture for all intents and purposes)). The terms and provisions contained in the Notes will constitute, and are hereby expressly made, a part of the Indenture, and the Company and the
Trustee, by their execution and delivery of the Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express provisions of the Indenture, the provisions
of the Indenture shall govern and be controlling. 
 SECTION 2.02. Amount. 
 Subject to compliance with Section 10.11 of the Indenture, the aggregate principal amount of the Notes that may be authenticated and delivered
pursuant hereto is unlimited. The Trustee shall initially authenticate and deliver Notes for original issue in an initial aggregate principal amount of up to $203,000,000, upon delivery to the Trustee of a Company Order for the authentication and
delivery of such Notes. The aggregate principal amount of the Notes to be issued hereunder may be increased at any time hereafter and the series may be reopened for issuances of Additional Notes, upon Company Order without the consent of any Holder
and without any further supplement or amendment to the Original Indenture or this First Supplemental Indenture. The Notes issued on the date hereof and any such Additional Notes that may be issued hereafter shall be part of the same series of
Securities for all purposes under the Indenture. 
 SECTION 2.03. Stated Maturity. 
 The Notes may be issued on any Business Day on or after February 8, 2008, and the Stated Maturity of the Notes shall be February 15, 2018.

 SECTION 2.04. Interest and Interest Rates. 
 The rate or rates at which the Notes shall bear interest, the date or dates from which such interest shall accrue, the Interest Payment Dates on which any
such interest shall be payable and the Regular Record Date for any interest payable on any Interest Payment Date, in each case, shall be as set forth in the form of Note attached as Exhibit A hereto. 
  

 First Supplemental Indenture 
 2 

 SECTION 2.05 Initial Depositary; Paying Agent; Place of
Payment. 
 The Company initially appoints The Depository Trust Company (“DTC”) to act as
the Depositary with respect to the Global Notes. 
 The Company initially appoints the Trustee to act as the Paying Agent and to act as the
custodian with respect to the Global Notes. 
 The Place of Payment with respect to the Notes, in addition to the Corporate Trust Office of
the Trustee, shall be New York, New York, and at such time, if ever, as the Notes are no longer represented by one or more Global Notes, the Company shall appoint and maintain a Paying Agent in the Borough of Manhattan, the City of New York, the
intention of the Company being that, after giving effect to the procedures of the Depositary respecting payments on Global Notes, the Notes shall at all times be payable in New York, New York. 
 SECTION 2.06. Optional Redemption. 
 At its option, the Company may redeem the Notes, in whole or in part, in principal amounts of $2,000 or any integral multiple of $1,000 in excess thereof, at any time or from time to time, at the applicable Redemption
Prices determined as set forth in the form of Note attached hereto as Exhibit A, in accordance with the terms set forth in the Notes and in accordance with Article Eleven of the Original Indenture (as amended and supplemented by this First
Supplemental Indenture, including without limitation Section 3.08. hereof). 
 SECTION 2.07. Mandatory
Redemption. 
 Article Twelve of the Original Indenture shall not apply to the Notes. The Company is not required to make
mandatory redemption or sinking fund payments with respect to the Notes. 
 SECTION 2.08. Defeasance and Discharge;
Covenant Defeasance. 
 Article Thirteen of the Original Indenture (as amended and supplemented by this First Supplemental
Indenture) shall apply to the Notes. Furthermore, each of the following shall constitute Additional Defeasible Provisions (as such term is defined in the Original Indenture): 
 (a) the covenants set forth in ARTICLE 4 of this First Supplemental Indenture; and 
 (b) the limitation imposed by clause (iv) of Section 8.1(a) of the Indenture (as a result of this First Supplemental Indenture). 
 SECTION 2.09 Subsidiary Guarantees. 
 To the extent any Restricted Subsidiary is, and continues to be, on any date after the Issue Date, required to Guarantee the Notes pursuant to
Section 10.17 of the Indenture, Article Fourteen of the Original Indenture (as amended and supplemented by this First Supplemental Indenture) shall apply to the Notes. 
 If, after the Issue Date, a Restricted Subsidiary is required to Guarantee the Notes pursuant to Section 10.17 of the Indenture, then the Company
will cause such Restricted Subsidiary to execute and deliver a supplemental indenture in the form attached as Exhibit E hereto and an Opinion of Counsel to the Trustee within 10 Business Days of the date on which such Restricted Subsidiary
was required to 

  

 First Supplemental Indenture 
 3 

 
Guarantee the Notes to the effect that such supplemental indenture has been duly authorized, executed and delivered by that Restricted Subsidiary and
constitutes a valid and binding agreement of that Restricted Subsidiary, enforceable in accordance with its terms (subject to customary exceptions) 
 SECTION 2.10. Registration Rights Agreement. 
 Holders of the Notes shall have
the benefit of the Company’s registration obligations with respect to the Notes, and such Holders shall also have certain obligations to indemnify the Company under certain circumstances, all as more fully set forth in the Registration Rights
Agreement. 
 SECTION 2.11. Global Securities. 
 Notes issued in global form will be substantially in the form of Exhibit A hereto (including the Global Note Legend thereon and the
“Schedule of Exchanges of Interests in the Global Note” attached thereto). Notes issued in definitive form will be substantially in the form of Exhibit A hereto (but without the Global Note Legend thereon and without the
“Schedule of Exchanges of Interests in the Global Note” attached thereto). Each Global Note will represent such of the outstanding Notes as will be specified therein and each shall provide that it represents the aggregate principal amount
of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time be reduced or increased, as appropriate, to reflect exchanges and redemptions. Any
endorsement of a Global Note to reflect the amount of any increase or decrease in the aggregate principal amount of outstanding Notes represented thereby will be made by the Trustee or the custodian, at the direction of the Trustee, in accordance
with instructions given by the Holder thereof as required by Section 3.5 of the Indenture. 
 ARTICLE 3 
 AMENDMENTS TO ORIGINAL INDENTURE 
 With respect to the Notes, the Original Indenture is hereby amended as set forth below in this ARTICLE 3; provided, however, that each such
amendment shall apply only to the Notes and not to any other series of Securities issued under the Indenture. 
 SECTION 3.01.
Defined Terms. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental
Indenture, Section 1.1 of the Original Indenture is hereby amended by inserting or restating, as the case may be, each of the following defined terms in its appropriate alphabetical position: 
 “144A Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note
Legend and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on
Rule 144A. 
 “Acquired Debt” means, with respect to any specified Person: 
 (1) Indebtedness of any other Person existing at the time such other Person is merged with or into or became a Subsidiary of such
specified Person, regardless of whether such Indebtedness is incurred in connection with, or in contemplation of, such other Person merging with or into, or becoming a Restricted Subsidiary of, such specified Person, but excluding Indebtedness which
is extinguished, retired or repaid in connection with such Person merging with or becoming a Subsidiary of such specified Person; and 
  

 First Supplemental Indenture 
 4 

 (2) Indebtedness secured by a Lien encumbering any asset acquired by such specified
Person. 
 “Acquired Subordinated Indebtedness” means Subordinated Debt of the Company or any Restricted
Subsidiary that is Acquired Debt and was not incurred in connection with, or in contemplation of, another Person merging with or into, or becoming a Restricted Subsidiary of, the Company or any of its Subsidiaries. 
 “Additional Assets” means: 
 (1) any property or assets (other than Indebtedness and Capital Stock) to be used by the Company or a Restricted Subsidiary in a Related Business; 
 (2) the Capital Stock of a Person that becomes a Restricted Subsidiary as a result of the acquisition of such Capital Stock by the Company
or another Restricted Subsidiary; 
 (3) Capital Stock constituting a minority interest in any Person that at such time is a
Restricted Subsidiary; or 
 (4) Capital Stock of any Restricted Subsidiary; provided that all the Capital Stock of
such Subsidiary held by the Company or any of its Restricted Subsidiaries shall entitle the Company or such Restricted Subsidiary to not less than a pro rata portion of all dividends or other distributions made by such Subsidiary upon any of
such Capital Stock; 
 provided, however, that in the case of clauses (2), (3) and (4), such Subsidiary is primarily
engaged in a Related Business. 
 “Additional Notes” means additional Notes (other than the Notes issued on
the date hereof) issued under the Indenture pursuant to Section 2.02. of the First Supplemental Indenture. 
 “Adjusted Consolidated Net Tangible Assets” means (without duplication), as of the date of determination, the remainder of: 
 (a) the sum of: 
 (i) discounted future net revenues from proved oil and gas reserves of the
Company and its Restricted Subsidiaries calculated in accordance with SEC guidelines before any provincial, territorial, state, federal or foreign income taxes, as estimated by the Company in a reserve report prepared as of the end of the
Company’s most recently completed fiscal year for which audited financial statements are available and giving effect to applicable Oil and Natural Gas Hedging Contracts, as increased by, as of the date of determination, the estimated discounted
future net revenues from: 
 (A) estimated proved oil and gas reserves acquired since such year end, which reserves were not
reflected in such year end reserve report, and 
  

 First Supplemental Indenture 
 5 

 (B) estimated oil and gas reserves attributable to upward revisions of estimates of
proved oil and gas reserves (including previously estimated development costs incurred during the period and the accretion of discount since the prior period end) since such year end due to exploration, development, exploitation or other activities,
in each case calculated in accordance with SEC guidelines, 
 and decreased by, as of the date of determination, the
estimated discounted future net revenues from: 
 (C) estimated proved oil and gas reserves reflected in such reserve report
produced or disposed of since such year end, and 
 (D) estimated oil and gas reserves attributable to downward revisions of
estimates of proved oil and gas reserves reflected in such reserve report since such year end due to changes in geological conditions or other factors which would, in accordance with standard industry practice, cause such revisions, in each case
calculated substantially in accordance with SEC guidelines, in each case as estimated by the Company’s petroleum engineers or any independent petroleum engineers engaged by the Company for that purpose; 
 (ii) the capitalized costs that are attributable to Oil and Gas Properties of the Company and its Restricted Subsidiaries to which no
proved oil and gas reserves are attributable, based on the Company’s books and records as of a date no earlier than the date of the Company’s latest available annual or quarterly financial statements; 
 (iii) the Net Working Capital (excluding, to the extent included in the determination of discounted future net revenues under clause
(i)(A) above, any adjustments made pursuant to FAS 143) on a date no earlier than the date of the Company’s latest annual or quarterly financial statements; and 
 (iv) the greater of: 
 (A) the net book value of other tangible assets of the Company and its Restricted Subsidiaries, as of a date no earlier than the date of the Company’s latest annual or quarterly financial statement, and 
 (B) the appraised value, as estimated by independent appraisers, of other tangible assets of the Company and its Restricted Subsidiaries,
as of a date no earlier than the date of the Company’s latest audited financial statements (provided that the Company shall not be required to obtain such appraisal solely for the purpose of determining this value); minus

 (b) the sum of: 
 (i) the net book value of shares of stock of any class of Capital Stock of a Restricted Subsidiary that are not owned by the Company or another Restricted Subsidiary; 
 (ii) any net gas balancing liabilities of the Company and its Restricted Subsidiaries reflected in the Company’s latest audited
financial statements; 
  

 First Supplemental Indenture 
 6 

 (iii) to the extent included in (a)(i) above, the discounted future net revenues,
calculated in accordance with SEC guidelines (utilizing the prices utilized in the Company’s year end reserve report), attributable to reserves which are required to be delivered to third parties to fully satisfy the obligations of the Company
and its Restricted Subsidiaries with respect to Volumetric Production Payments (determined, if applicable, using the schedules specified with respect thereto); and 
 (iv) the discounted future net revenues, calculated in accordance with SEC guidelines, attributable to reserves subject to
Dollar-Denominated Production Payments which, based on the estimates of production and price assumptions included in determining the discounted future net revenues specified in (a)(i) above, would be necessary to fully satisfy the payment
obligations of the Company and its Subsidiaries with respect to Dollar-Denominated Production Payments (determined, if applicable, using the schedules specified with respect thereto). 
 If the Company changes its method of accounting from the full cost or a similar method to the successful efforts method of accounting,
“Adjusted Consolidated Net Tangible Assets” will continue to be calculated as if the Company were still using the full cost or a similar method of accounting. 
 “Agent” means any Registrar, Paying Agent or Authenticating Agent. 
 “Applicable Procedures” means, with respect to any transfer or exchange of or for beneficial interests in any Global
Note, the rules and procedures of the Depositary, Euroclear and Clearstream that apply to such transfer or exchange. 
 “Asset Sale” means: 
 (1) the sale, lease, conveyance or other disposition of any assets or rights
(including by way of a Production Payment or a sale and leaseback transaction); provided that the sale, lease, conveyance or other disposition of all or substantially all of the assets of the Company and its Restricted Subsidiaries taken as a
whole will be governed by the provisions of Article Eight and/or Section 10.15 of this Indenture and not by the provisions of the Asset Sale covenant set forth in Section 10.12 of this Indenture; and 
 (2) the issuance of Equity Interests in any of the Company’s Restricted Subsidiaries (other than directors’ qualifying shares)
or the sale of Equity Interests held by the Company or its Subsidiaries in any of its Subsidiaries. 
 Notwithstanding the
preceding, none of the following items will be deemed to be an Asset Sale: 
 (1) any single transaction or series of related
transactions that involves assets having a Fair Market Value of less than $15.0 million; 
 (2) a transfer of assets between
or among the Company and its Restricted Subsidiaries; 
 (3) an issuance of Equity Interests by a Restricted Subsidiary to the
Company or to a Restricted Subsidiary; 
  

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 7 

 (4) the sale, lease or other disposition of equipment, inventory, products, services,
accounts receivable or other assets in the ordinary course of business, including in connection with any compromise, settlement or collection of accounts receivable, and any sale or other disposition of damaged, worn-out or obsolete assets or assets
that are no longer useful in the conduct of the business of the Company and its Restricted Subsidiaries; 
 (5) the sale or
other disposition of cash or Cash Equivalents; 
 (6) a Restricted Payment that does not violate Section 10.9 of this
Indenture, including the issuance or sale of Equity Interests or the sale, lease or other disposition of products, services, equipment, inventory, accounts receivable or other assets pursuant to any such Restricted Payment; 
 (7) the consummation of a Permitted Investment, including, without limitation, unwinding any Hedging Obligations, and including the
issuance or sale of Equity Interests or the sale, lease or other disposition of products, services, equipment, inventory, accounts receivable or other assets pursuant to any such Permitted Investment; 
 (8) a disposition of Hydrocarbons or mineral products inventory in the ordinary course of business; 
 (9) the farm-out, lease or sublease of developed or undeveloped crude oil or natural gas properties owned or held by the Company or any
Restricted Subsidiary in exchange for crude oil and natural gas properties owned or held by another Person; 
 (10) the
creation or perfection of a Lien (but not, except as contemplated in clause (11) below, the sale or other disposition of the properties or assets subject to such Lien); 
 (11) the creation or perfection of a Permitted Lien and the exercise by any Person in whose favor a Permitted Lien is granted of any of
its rights in respect of that Permitted Lien; 
 (12) the licensing or sublicensing of intellectual property, including,
without limitation, licenses for seismic data, in the ordinary course of business and which do not materially interfere with the business of the Company and its Restricted Subsidiaries; 
 (13) surrender or waiver of contract rights or the settlement, release or surrender of contract, tort or other claims of any kind; and

 (14) the disposition of oil and natural gas properties in connection with tax credit transactions complying with
Section 29 of the Code or any successor or analogous provisions of the Code. 
 “Asset Sale Offer” has
the meaning set forth in Section 10.12 of this Indenture. 
 “Beneficial Owner” has the meaning assigned
to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person”
will be deemed to have beneficial ownership of all securities that such “person” has the right to acquire 

  

 First Supplemental Indenture 
 8 

 
by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only after the passage of time or upon the
occurrence of a subsequent condition. The terms “Beneficially Owns,” “Beneficially Owned” and “Beneficially Owning” will have a corresponding meaning. 
 “Broker-Dealer” has the meaning set forth in the Registration Rights Agreement. 
 “Business Day” means any day other than a Legal Holiday. 
 “Calculation Date” has the meaning set forth below in the definition of “Fixed Charge Coverage Ratio”.

 “Capital Lease Obligation” means, at the time any determination is to be made, the amount of the liability
in respect of a capital lease that would at that time be required to be capitalized on a balance sheet in accordance with GAAP, and the Stated Maturity thereof shall be the date of the last payment of rent or any other amount due under such lease
prior to the first date upon which such lease may be prepaid by the lessee without payment of a penalty. 
 “Capital Stock”
means: 
 (1) in the case of a corporation, corporate stock; 
 (2) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however
designated) of corporate stock; 
 (3) in the case of a partnership or limited liability company, partnership interests
(whether general or limited) or membership interests; and 
 (4) any other interest or participation that confers on a Person
the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person, but excluding from all of the foregoing any debt securities convertible into Capital Stock, regardless of whether such debt securities
include any right of participation with Capital Stock. 
 “Cash Equivalents” means: 
 (1) United States dollars; 
 (2) Government Securities having maturities of not more than one year from the date of acquisition; 
 (3) marketable general obligations issued by any state of the United States of America or any political subdivision of any such state or any public instrumentality thereof maturing within one year from the date of acquisition thereof and,
at the time of acquisition thereof, having a credit rating of “A” or better from either S&P or Moody’s; 
 (4) certificates of deposit, demand deposit accounts and eurodollar time deposits with maturities of one year or less from the date of acquisition, bankers’ acceptances with maturities not exceeding one year and overnight bank
deposits, in each case, with any domestic commercial bank having capital and surplus in excess of $500.0 million and a Thomson Bank Watch Rating of “B” or better; 
  

 First Supplemental Indenture 
 9 

 (5) repurchase obligations with a term of not more than seven days for underlying
securities of the types described in clauses (2), (3) and (4) above entered into with any financial institution meeting the qualifications specified in clause (4) above; 
 (6) commercial paper having one of the two highest ratings obtainable from Moody’s or S&P and, in each case, maturing within one
year after the date of acquisition; 
 (7) money market funds at least 95% of the assets of which constitute Cash Equivalents
of the kinds described in clauses (1) through (6) of this definition; and 
 (8) deposits in any currency available
for withdrawal on demand with any commercial bank that is organized under the laws of any country in which the Company or any Restricted Subsidiary maintains its chief executive office or is engaged in the Related Business, provided that all
such deposits are made in such accounts in the ordinary course of business. 
 “Change of Control” means: 
 (1) any “person” or “group” of related persons (as such terms are used in Section 13(d) of the Exchange Act),
other than a Parent, is or becomes a Beneficial Owner, directly or indirectly, of more than 50% of the total voting power of the Voting Stock of the Company (or its successor by merger, consolidation or purchase of all or substantially all of its
assets) (for the purposes of this clause, such person or group shall be deemed to Beneficially Own any Voting Stock of the Company held by an entity, if such person or group Beneficially Owns, directly or indirectly, more than 50% of the voting
power of the Voting Stock of such entity); 
 (2) the first day on which a majority of the members of the Board of Directors
of the Company are not Continuing Directors; 
 (3) the direct or indirect sale, lease, transfer, conveyance or other
disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the assets of the Company and its Restricted Subsidiaries taken as a whole to any “person” (as such term
is used in Section 13(d) of the Exchange Act); or 
 (4) the adoption of a plan or proposal for the liquidation or
dissolution of the Company. 
 “Change of Control Offer” has the meaning set forth in Section 10.15(a)
of this Indenture. 
 “Change of Control Payment” has the meaning set forth in Section 10.15(a) of this
Indenture. 
 “Change of Control Payment Date” has the meaning set forth in Section 10.15(a) of this
Indenture. 
  

 First Supplemental Indenture 
 10 

 “Clearstream” means Clearstream Banking, S.A. 
 “Consolidated Cash Flow” means, with respect to any specified Person for any period, the Consolidated Net Income of such
Person for such period plus, without duplication: 
 (1) an amount equal to any extraordinary loss plus any net loss
realized by such Person or any of its Restricted Subsidiaries in connection with an Asset Sale (together with any related provision for taxes and any related non-recurring charges relating to any premium or penalty paid, write-off of deferred
financing costs or other financial recapitalization charges in connection with redeeming or retiring any Indebtedness prior to its Stated Maturity), to the extent that such losses were deducted in computing such Consolidated Net Income; plus

 (2) provision for taxes based on income or profits of such Person and its Restricted Subsidiaries for such period, to the
extent that such provision for taxes was deducted in computing such Consolidated Net Income; plus 
 (3) the Fixed
Charges of such Person and its Restricted Subsidiaries for such period, to the extent that such Fixed Charges were deducted in computing such Consolidated Net Income; plus 
 (4) exploration and abandonment expense (if applicable) to the extent deducted in calculating Consolidated Net Income; plus

 (5) depreciation, depletion, amortization (including amortization of intangibles but excluding amortization of prepaid cash
expenses that were paid in a prior period), impairment, other non-cash expenses and other non-cash items (excluding any such non-cash expense to the extent that it represents an accrual of or reserve for cash expenses in any future period or
amortization of a prepaid cash expense that was paid in a prior period) of such Person and its Restricted Subsidiaries for such period to the extent that such depreciation, depletion, amortization, impairment and other non-cash expenses were
deducted in computing such Consolidated Net Income; plus 
 (6) any interest expense attributable to any Oil and
Natural Gas Hedging Contract, to the extent that such interest expense was deducted in computing such Consolidated Net Income; plus 
 (7) the accretion of interest charges on future plugging and abandonment obligations and future retirement benefits, to the extent such charges were deducted in computing such Consolidated Net Income; minus

 (8) non-cash items increasing such Consolidated Net Income for such period, other than items that were accrued in the
ordinary course of business; and minus 
 (9) the sum of (a) the amount of deferred revenues that are amortized
during such period and are attributable to reserves that are subject to Volumetric Production Payments and (b) amounts recorded in accordance with GAAP as repayments of principal and interest pursuant to Dollar-Denominated Production Payments;

 in each case, on a consolidated basis and determined in accordance with GAAP. 
  

 First Supplemental Indenture 
 11 

 Notwithstanding the foregoing, the provision for taxes on the income or profits of, and
the depreciation, depletion and amortization and other non-cash charges and expenses of, a Restricted Subsidiary of the referent Person shall be added to Consolidated Net Income to compute Consolidated Cash Flow only (a) to the extent (and in
the same proportion) that the Net Income of such Restricted Subsidiary was included in calculating the Consolidated Net Income of such Person and (b) if a corresponding amount would be permitted at the date of determination to be dividended or
distributed to the referent Person by such Restricted Subsidiary without prior governmental approval (that has not been obtained), and without direct or indirect restriction pursuant to the terms of its charter and all agreements, instruments,
judgments, decrees, orders, statutes, rules and governmental regulations applicable to that Restricted Subsidiary or its stockholders (without regard to any restrictions existing by reason of, or any governmental approvals necessary pursuant to, any
law, rule, regulation, order or decree that is generally applicable to all Persons operating in any jurisdiction in which the Company or any of its Restricted Subsidiaries are conducting business so long as there is in effect no specific order,
decree or other prohibition pursuant to any such law, rule or regulation in such jurisdiction limiting the payment of a dividend or similar distribution by such Restricted Subsidiary); provided, however, that the operation of this
clause (b) shall be suspended with respect to any Restricted Subsidiary that is acquired by the Company or any of its Restricted Subsidiaries (regardless of whether such acquisition is effected pursuant to a merger or otherwise) (such
Restricted Subsidiary being referred to as a “Newly Acquired Restricted Subsidiary”), but such suspension shall cease immediately after the first six months following such acquisition. 
 “Consolidated Net Income” means, with respect to any specified Person for any period, the aggregate of the Net Income of
such Person and its Restricted Subsidiaries for such period, on a consolidated basis, determined in accordance with GAAP; provided that: 
 (1) the Net Income (but not loss) of any Person that is not a Restricted Subsidiary or that is accounted for by the equity method of accounting will be included only to the extent of the amount of dividends or similar
distributions paid in cash to the specified Person or a Restricted Subsidiary of the Person; 
 (2) the Net Income of any
Restricted Subsidiary will be excluded to the extent that the declaration or payment of dividends or similar distributions by that Restricted Subsidiary of that Net Income is not at the date of determination permitted without any prior governmental
approval (that has not been obtained) or, directly or indirectly, by operation of the terms of its charter or any agreement, instrument, judgment, decree, order, statute, rule or governmental regulation applicable to that Restricted Subsidiary or
its stockholders (without regard to any restrictions existing by reason of, or any governmental approvals necessary pursuant to, any law, rule, regulation, order or decree that is generally applicable to all Persons operating in any jurisdiction in
which the Company or any of its Restricted Subsidiaries are conducting business so long as there is in effect no specific order, decree or other prohibition pursuant to any such law, rule or regulation in such jurisdiction limiting the payment of a
dividend or similar distribution by such Restricted Subsidiary); provided, however, that the operation of this clause (2) shall be suspended with respect to any Newly Acquired Restricted Subsidiary, but such suspension shall cease
immediately after the first six months following such acquisition; 
 (3) the cumulative effect of a change in accounting
principles will be excluded; 
  

 First Supplemental Indenture 
 12 

 (4) any gain (loss) realized upon the sale or other disposition of any property, plant or
equipment of such Person or its consolidated Restricted Subsidiaries (including pursuant to any sale or leaseback transaction) which is not sold or otherwise disposed of in the ordinary course of business and any gain (loss) realized upon the sale
or other disposition of any Capital Stock of any Person will be excluded; 
 (5) any asset impairment writedowns on Oil and
Gas Properties under GAAP or SEC guidelines will be excluded; 
 (6) any non-cash mark-to-market adjustments to assets or
liabilities resulting in unrealized gains or losses in respect of Hedging Obligations (including those resulting from the application of SFAS 133) shall be excluded; and 
 (7) to the extent deducted in the calculation of Net Income, any non-cash or nonrecurring charges associated with any premium or penalty
paid, write-off of deferred financing costs or other financial recapitalization charges in connection with redeeming or retiring any Indebtedness will be excluded. 
 “Consolidated Net Worth” means, with respect to any specified Person as of any date, the sum of: 
 (1) the consolidated equity of the common stockholders of such Person and its consolidated Subsidiaries as of such date; plus

 (2) the respective amounts reported on such Person’s balance sheet as of such date with respect to any series of
preferred stock (other than Disqualified Stock) that by its terms is not entitled to the payment of dividends unless such dividends may be declared and paid only out of net earnings in respect of the year of such declaration and payment, but only to
the extent of any cash received by such Person upon issuance of such preferred stock. 
 “Consolidated Tangible
Assets” means, with respect to any Person as of any date, the amount which, in accordance with GAAP, would be set forth under the caption “Total Assets” (or any like caption) on a consolidated balance sheet of such Person and its
Restricted Subsidiaries, less all goodwill, patents, tradenames, trademarks, copyrights, franchises, experimental expenses, organization expenses and any other amounts classified as intangible assets in accordance with GAAP. 
 “Continuing Directors” means, as of any date of determination, any member of the Board of Directors of the Company who:

 (1) was a member of such Board of Directors on the Issue Date; or 
 (2) was nominated for election or elected to such Board of Directors with the approval of a majority of the Continuing Directors who were
members of such Board of Directors at the time of such nomination or election. 
 “Credit Facilities” means,
with respect to the Company or any of its Restricted Subsidiaries, one or more debt facilities (including, without limitation, the Senior Credit Agreement), commercial paper facilities or Debt Issuances providing for revolving credit loans, term
loans, receivables financing (including through the sale of receivables to any lenders, other 

  

 First Supplemental Indenture 
 13 

 
financiers or to special purpose entities formed to borrow from (or sell such receivables to) any lenders or other financiers against such receivables),
letters of credit, bankers’ acceptances, other borrowings or Debt Issuances, in each case, as amended, restated, modified, renewed, extended, refunded, replaced or refinanced (in each case, without limitation as to amount), in whole or in part,
from time to time (including through one or more Debt Issuances). 
 “Currency Agreement” means in respect of
a Person any foreign exchange contract, currency swap agreement or other similar agreement as to which such Person is a party or a beneficiary. 
 “Debt Issuances” means, with respect to the Company or any Restricted Subsidiary, one or more issuances after the Issue Date of Indebtedness evidenced by notes, debentures, bonds or other similar
securities or instruments. 
 “Default” means any event which is, or after notice or passage of time or both
would be, an Event of Default. 
 “Definitive Note” means a certificated Note registered in the name of the
Holder thereof and issued in accordance with Section 3.5 of this Indenture, substantially in the form of Exhibit A hereto except that such Note shall not bear the Global Note Legend and shall not have the “Schedule of Exchanges of
Interests in the Global Note” attached thereto. 
 “Disqualified Stock” means any Capital Stock that, by
its terms (or by the terms of any security into which it is convertible, or for which it is exchangeable, in each case at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable,
pursuant to a sinking fund obligation or otherwise, or redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the date that is 91 days after the date on which the Notes mature. Notwithstanding the preceding
sentence, any Capital Stock that would constitute Disqualified Stock solely because the holders of the Capital Stock have the right to require the Company to repurchase such Capital Stock upon the occurrence of a Change of Control or an Asset Sale
will not constitute Disqualified Stock if the terms of such Capital Stock provide that the Company may not repurchase or redeem any such Capital Stock pursuant to such provisions unless such repurchase or redemption complies with Section 10.9
of this Indenture. The amount of Disqualified Stock deemed to be outstanding at any time for purposes of this Indenture will be the maximum amount that the Company and its Restricted Subsidiaries may become obligated to pay upon the maturity of, or
pursuant to any mandatory redemption provisions of, such Disqualified Stock, exclusive of accrued dividends. 
 “Dollar-Denominated Production Payments” means production payment obligations recorded as liabilities in accordance with GAAP, together with all undertakings and obligations in connection therewith. 
 “Domestic Restricted Subsidiary” means any Restricted Subsidiary that was formed under the laws of the United States or
any state of the United States or the District of Columbia or that Guarantees or otherwise provides direct credit support for any Indebtedness of the Company or any Restricted Subsidiary. 
 “Equity Interests” means Capital Stock and all warrants, options or other rights to acquire Capital Stock (but excluding
any debt security that is convertible into, or exchangeable for, Capital Stock). 
  

 First Supplemental Indenture 
 14 

 “Equity Offering” means (i) an offering for cash by the Company of
its Capital Stock (other than Disqualified Stock), or options, warrants or rights with respect to its Capital Stock or (ii) a cash contribution to the Company’s common equity capital from any Person. 
 “Euroclear” means Euroclear Bank, S.A./N.V., as operator of the Euroclear system. 
 “Exchange Notes” means the Notes issued in the Exchange Offer pursuant to Section 3.5(f) of this Indenture.

 “Exchange Offer” has the meaning set forth in the Registration Rights Agreement.  
 “Exchange Offer Registration Statement” has the meaning set forth in the Registration Rights Agreement. 
 “Existing Indebtedness” means Indebtedness of the Company and its Subsidiaries (other than Indebtedness under the Senior
Credit Agreement, the Notes and the Subsidiary Guarantees) in existence on the Issue Date, until such amounts are repaid. 
 “Fair Market Value” means the value that would be paid by a willing buyer to an unaffiliated willing seller in a transaction not involving distress or necessity of either party, determined in good faith by the Board of
Directors or management of the Company (unless otherwise provided in this Indenture), which determination will be conclusive for all purposes under this Indenture. 
 “Farm-In Agreement” means an agreement whereby a Person agrees to pay all or a share of the drilling, completion or other
expenses of an exploratory or development well (which agreement may be subject to a maximum payment obligation, after which expenses are shared in accordance with the working or participation interest therein or in accordance with the agreement of
the parties) or perform the drilling, completion or other operation on such well in exchange for an ownership interest in an oil or gas property. 
 “Farm-Out Agreement” means a Farm-In Agreement, viewed from the standpoint of the party that transfers an ownership interest to another. 
 “First Supplemental Indenture” means the First Supplemental Indenture dated as of February 8, 2008 by and between
the Company and the Trustee. 
 “Fixed Charge Coverage Ratio” means with respect to any specified Person for
any period, the ratio of the Consolidated Cash Flow of such Person for such period to the Fixed Charges of such Person for such period. In the event that the specified Person or any of its Restricted Subsidiaries incurs, assumes, guarantees, repays,
repurchases, redeems, defeases or otherwise discharges any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems preferred stock subsequent to the commencement of the period for which the Fixed Charge
Coverage Ratio is being calculated and on or prior to the date on which the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Calculation Date”), then the Fixed Charge Coverage Ratio will be calculated
giving pro forma effect to such incurrence, assumption, Guarantee, repayment, repurchase, redemption, defeasance or other discharge of Indebtedness, or such issuance, repurchase or redemption of preferred stock, and the use of the proceeds
therefrom, as if the same had occurred at the beginning of the applicable four-quarter reference period. 
  

 First Supplemental Indenture 
 15 

 In addition, for purposes of calculating the Fixed Charge Coverage Ratio: 
 (1) acquisitions that have been made by the specified Person or any of its Restricted Subsidiaries, including through mergers,
consolidations or otherwise (including acquisitions of assets used or useful in a Related Business), or any Person or any of its Restricted Subsidiaries acquired by the specified Person or any of its Restricted Subsidiaries, and including any
related financing transactions and including increases in ownership of Restricted Subsidiaries, during the four-quarter reference period or subsequent to such reference period and on or prior to the Calculation Date will be given pro forma effect as
if they had occurred on the first day of the four-quarter reference period or, in the reasonable judgment of the chief accounting or chief financial officer of the Company, are reasonably expected to occur (regardless of whether those operating
improvements or cost savings could then be reflected in pro forma financial statements prepared in accordance with Regulation S-X under the Securities Act or any other regulation or policy of the SEC related thereto); 
 (2) the Consolidated Cash Flow attributable to discontinued operations, as determined in accordance with GAAP, and operations or
businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded; 
 (3) the Fixed
Charges attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded, but only to the extent that the
obligations giving rise to such Fixed Charges will not be obligations of the specified Person or any of its Restricted Subsidiaries following the Calculation Date; 
 (4) any Person that is a Restricted Subsidiary on the Calculation Date will be deemed to have been a Restricted Subsidiary at all times
during such four-quarter period; 
 (5) any Person that is not a Restricted Subsidiary on the Calculation Date will be deemed
not to have been a Restricted Subsidiary at any time during such four-quarter period; and 
 (6) if any Indebtedness bears a
floating rate of interest, the interest expense on such Indebtedness will be calculated as if the rate in effect on the Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligation applicable to
such Indebtedness if such Hedging Obligation has a remaining term as at the Calculation Date in excess of 12 months). 
 “Fixed Charges” means, with respect to any specified Person for any period, the sum, without duplication, of: 
 (1) the consolidated interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued (excluding (i) any interest attributable to Production Payments and Reserve Sales,
(ii) write-off of deferred financing costs and (iii) accretion of interest charges on future plugging and abandonment obligations, future retirement benefits and other obligations that do not constitute Indebtedness, but including, without
limitation, amortization of debt issuance costs and original issue discount, noncash interest payments, the interest component of any deferred payment obligations other than that attributable to any Oil and Natural Gas Hedging Contract, the interest
component of all payments associated with Capital Lease 

  

 First Supplemental Indenture 
 16 

 
Obligations, commissions, discounts and other fees and charges incurred in respect of letter of credit or bankers’ acceptance financings), and net of
the effect of all payments made or received pursuant to Interest Rate Agreements; plus 
 (2) the consolidated interest
expense of such Person and its Restricted Subsidiaries that was capitalized during such period; plus 
 (3) any
interest on Indebtedness of another Person that is guaranteed by the specified Person or one or more of its Restricted Subsidiaries or secured by a Lien on assets of such specified Person or one or more of its Restricted Subsidiaries, regardless of
whether such Guarantee or Lien is called upon; plus 
 (4) all dividends, whether paid or accrued and regardless of
whether in cash, on any series of preferred stock of such Person or any of its Restricted Subsidiaries, other than dividends on Equity Interests payable solely in Equity Interests of the Company (other than Disqualified Stock) or to the Company or a
Restricted Subsidiary, 
 in each case, on a consolidated basis and in accordance with GAAP. 
 “Foreign Subsidiary” means any Restricted Subsidiary other than a Domestic Restricted Subsidiary. 
 “Global Note Legend” means the legend set forth in Section 3.5(g)(2) of this Indenture, which is required to be
placed on all Global Notes issued under this Indenture. 
 “Global Notes” means, individually and
collectively, each of the Restricted Global Notes and the Unrestricted Global Notes deposited with or on behalf of and registered in the name of the Depositary or its nominee, substantially in the form of Exhibit A hereto and that bears the
Global Note Legend and that has the “Schedule of Exchanges of Interests in the Global Note” attached thereto, issued in accordance with Section 2.01 of the First Supplemental Indenture and Sections 3.5(b)(3), 3.5(b)(4), 3.5(d) or
3.5(f) of this Indenture. 
 “Guarantee” means a guarantee other than by endorsement of negotiable
instruments for collection in the ordinary course of business, direct or indirect, in any manner including, without limitation, by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof, of all or any
part of any Indebtedness (whether arising by virtue of partnership arrangements, or by agreements to keep-well, to purchase assets, goods, securities or services or to take or pay or to maintain financial statement conditions or otherwise), or
entered into for purposes of assuring in any other manner the obligee of such Indebtedness of the payment thereof or to protect such obligee against loss in respect thereof (in whole or in part). 
 “Guarantor” means each Restricted Subsidiary that has become obligated under a Subsidiary Guarantee, in accordance with
the terms of the guarantee provisions of this Indenture, but only for so long as such Subsidiary remains so obligated pursuant to the terms of this Indenture (including without limitation Section 10.17 of this Indenture). 
 “Hedging Obligations” of any Person means the obligations of such Person pursuant to any Interest Rate and Currency
Hedges and any Oil and Natural Gas Hedging Contracts. 
  

 First Supplemental Indenture 
 17 

 “Hydrocarbons” means oil, gas, casinghead gas, drip gasoline, natural
gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all constituents, elements or compounds thereof and products refined or processed therefrom. 
 “IAI Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend
and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes transferred to
Institutional Accredited Investors in compliance with the Securities Act. 
 “Indebtedness” means, with
respect to any specified Person, without duplication, any indebtedness of such Person, regardless of whether contingent: 
 (1) in respect of borrowed money; 
 (2) evidenced by bonds, notes, debentures or similar instruments or letters of
credit (or reimbursement agreements in respect thereof); 
 (3) in respect of banker’s acceptances; 
 (4) representing Capital Lease Obligations; 
 (5) in respect of any Guarantee by such Person of production or payment with respect to a Production Payment (but not any other contractual obligation in respect of such Production Payment); 
 (6) representing the balance deferred and unpaid of the purchase price of any property or services due more than six months after such
property is acquired or such services are completed, except any such balance that constitutes an accrued expense or a trade payable; or 
 (7) representing any Interest Rate and Currency Hedges, 
 if and to the extent any of the preceding items
(other than letters of credit and Interest Rate and Currency Hedges) would appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes (a) all
Indebtedness of any other Person, of the types described above in clauses (1) through (7), secured by a Lien on any asset of the specified Person (regardless of whether such Indebtedness is assumed by the specified Person), provided that
the amount of such Indebtedness will be the lesser of (i) the Fair Market Value of such asset at such date of determination and (ii) the amount of such Indebtedness of such other Person, and (b) to the extent not otherwise included,
the Guarantee by the specified Person of any Indebtedness of any other Person, of the types described above in clauses (1) through (7). Furthermore, the amount of any Indebtedness outstanding as of any date will be the accreted value thereof,
in the case of any Indebtedness issued with original issue discount; and the principal amount thereof, together with any interest thereon that is more than 30 days past due, in the case of any other Indebtedness. 
 Notwithstanding the foregoing, the following shall not constitute “Indebtedness”: 
 (i) accrued expenses and trade accounts payable arising in the ordinary course of business; 
  

 First Supplemental Indenture 
 18 

 (ii) except as provided in clause (5) of the first paragraph of this definition, any
obligation in respect of any Production Payment and Reserve Sales; 
 (iii) any obligation in respect of any Farm-In
Agreement; 
 (iv) any indebtedness which has been defeased in accordance with GAAP or defeased pursuant to the deposit of
cash or Government Securities (in an amount sufficient to satisfy all such indebtedness obligations at maturity or redemption, as applicable, and all payments of interest and premium, if any) in a trust or account created or pledged for the sole
benefit of the holders of such indebtedness, and subject to no other Liens, and the other applicable terms of the instrument governing such indebtedness; 
 (v) oil or natural gas balancing liabilities incurred in the ordinary course of business and consistent with past practice; 
 (vi) any obligation in respect of any Oil and Natural Gas Hedging Contract; 
 (vii) any
unrealized losses or charges in respect of Hedging Obligations (including those resulting from the application of FAS 133); 
 (viii) any obligations in respect of (a) bid, performance, completion, surety, appeal and similar bonds, (b) obligations in respect of bankers acceptances, (c) insurance obligations or bonds and other similar bonds and
obligations and (d) any guaranties or letters of credit functioning as or supporting any of the foregoing bonds or obligations; provided, however that such bonds or obligations mentioned in subclause (a), (b), (c) or
(d) of this clause (viii), are incurred in the ordinary course of the business of the Company and its Restricted Subsidiaries and do not relate to obligations for borrowed money; 
 (ix) any obligations in respect of completion bonds, performance bonds, bid bonds, appeal bonds, surety bonds, bankers acceptances,
letters of credit, insurance obligations or bonds and other similar bonds and obligations incurred by the Company or any Restricted Subsidiary in the ordinary course of business and any guaranties and obligations of the Company or any Restricted
Subsidiary with respect to or letters of credit functioning as or supporting any of the foregoing bonds or obligations; 
 (x)
any obligation arising from any agreement providing for indemnities, guarantees, purchase price adjustments, holdbacks, contingency payment obligations based on the performance of the acquired or disposed assets or similar obligations (other than
guaranties of Indebtedness) incurred by any Person in connection with the acquisition or disposition of assets; and 
 (xi)
all contracts and other obligations, agreements instruments or arrangements described in clauses (20), (21), (22) and (23) of the definition of “Permitted Liens”. 
 “Indirect Participant” means a Person who holds a beneficial interest in a Global Note through a Participant. 

“Institutional Accredited Investor” means an institution that is an “accredited investor” as defined in Rule
501(a)(1), (2), (3) or (7) under the Securities Act, who are not also QIBs. 
  

 First Supplemental Indenture 
 19 

 “Interest Rate Agreement” means with respect to any Person any interest
rate protection agreement, interest rate future agreement, interest rate option agreement, interest rate swap agreement, interest rate cap agreement, interest rate collar agreement, interest rate hedge agreement or other similar agreement or
arrangement as to which such Person is party or a beneficiary. 
 “Interest Rate and Currency Hedges” of any
Person means the obligations of such Person pursuant to any Interest Rate Agreement or Currency Agreement. 
 “Investments” means, with respect to any Person, all direct or indirect investments by such Person in other Persons (including Affiliates) in the forms of loans (including Guarantees or other obligations, advances or
capital contributions (excluding endorsements of negotiable instruments and documents in the ordinary course of business, and commission, travel and similar advances to officers, employees and consultants made in the ordinary course of business),
purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities, together with all items that are or would be classified as investments on a balance sheet prepared in accordance with GAAP. If the Company or
any Restricted Subsidiary sells or otherwise disposes of any Equity Interests of any direct or indirect Restricted Subsidiary such that, after giving effect to any such sale or disposition, such Person is no longer a Restricted Subsidiary, the
Company will be deemed to have made an Investment on the date of any such sale or disposition equal to the Fair Market Value of the Company’s Investments in such Restricted Subsidiary that were not sold or disposed of in an amount determined as
provided in Section 10.9(d) of this Indenture. The acquisition by the Company or any Subsidiary of the Company of a Person that holds an Investment in a third Person will be deemed to be an Investment by the Company or such Subsidiary in such
third Person in an amount equal to the Fair Market Value of the Investments held by the acquired Person in such third Person in an amount determined as provided in Section 10.9(d) of this Indenture. Except as otherwise provided in this
Indenture, the amount of an Investment will be determined at the time the Investment is made and without giving effect to subsequent changes in value. 
 “Issue Date” means the first date on which Notes are issued under this Indenture. 
 “Legal Holiday” means a Saturday, a Sunday or a day on which banking institutions in the City of New York or at a place of payment are authorized by law, regulation or executive order to remain closed. 
 “Letter of Transmittal” means the letter of transmittal to be prepared by the Company and sent to all Holders of the
Notes for use by such Holders in connection with the Exchange Offer. 
 “Leverage Ratio” means, with respect
to any Person as of any date of determination, the ratio of (x) the total consolidated Indebtedness of such Person and its Restricted Subsidiaries as of the end of the most recent fiscal quarter for which internal financial statements are
available, which would be reflected as a liability on a consolidated balance sheet of such Person and its Restricted Subsidiaries prepared as of such date in accordance with GAAP, to (y) the aggregate amount of Consolidated Cash Flow of such
Person for the then most recent four fiscal quarters for which internal financial statements are available, in each case with such pro forma adjustments to the amount of consolidated Indebtedness and Consolidated Cash Flow as are appropriate and
consistent with the pro forma adjustment provisions set forth in the definition of Fixed Charge Coverage Ratio. 
  

 First Supplemental Indenture 
 20 

 “Lien” means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind in respect of such asset, regardless of whether filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement, any lease in the
nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction. 
 “Liquidated Damages” means all Liquidated Damages then owning pursuant to the Registration Rights Agreement. 

“Master Limited Partnership” means a limited liability company or partnership that is an Unrestricted Subsidiary and
whose Capital Stock is traded on a stock exchange or over-the-counter market. 
 “Material Subsidiary” means
any Domestic Restricted Subsidiary having Consolidated Tangible Assets that constitutes more than 10% of the Company’s Consolidated Tangible Assets. 
 “Moody’s” means Moody’s Investors Service, Inc. or any successor to the rating agency business thereof. 
 “Net Income” means, with respect to any specified Person, the net income (loss) of such Person, determined in accordance
with GAAP and before any reduction in respect of preferred stock dividends, excluding, however: 
 (1) any gain or loss,
together with any related provision for taxes on such gain or loss, realized in connection with: (a) any Asset Sale or (b) the disposition of any securities by such Person or any of its Restricted Subsidiaries or the extinguishment of any
Indebtedness of such Person or any of its Restricted Subsidiaries; and 
 (2) any extraordinary or nonrecurring gain or loss,
together with any related provision for taxes on such extraordinary or nonrecurring gain or loss. 
 “Net
Proceeds” means the aggregate cash proceeds received by the Company or any of its Restricted Subsidiaries in respect of any Asset Sale (including, without limitation, any cash received upon the sale or other disposition of any non-cash
consideration received in any Asset Sale), net of: 
 (1) all legal, accounting, investment banking, title and recording tax
expenses, commissions and other fees and expense incurred, and all federal, state, provincial, foreign and local taxes required to be paid or accrued as a liability under GAAP (after taking into account any available tax credits or deductions and
any tax sharing agreements), as a consequence of such Asset Sale; 
 (2) all payments made on any Indebtedness which is
secured by any assets subject to such Asset Sale, in accordance with the terms of such Indebtedness, or which must by its terms, or in order to obtain a necessary consent to such Asset Sale, or by applicable law be repaid out of the proceeds from
such Asset Sale; 
 (3) all distributions and other payments required to be made to holders of minority interests in
Subsidiaries or joint ventures as a result of such Asset Sale; and 
  

 First Supplemental Indenture 
 21 

 (4) the deduction of appropriate amounts to be provided by the seller as a reserve, in
accordance with GAAP, or held in escrow, in either case for adjustment in respect of the sale price or for any liabilities associated with the assets disposed of in such Asset Sale and retained by the Company or any Restricted Subsidiary after such
Asset Sale. 
 “Net Working Capital” means (a) all current assets of the Company and its Restricted
Subsidiaries except current assets from Oil and Natural Gas Hedging Contracts, less (b) all current liabilities of the Company and its Restricted Subsidiaries, except current liabilities included in Indebtedness and any current liabilities from
Oil and Natural Gas Hedging Contracts, in each case as set forth in the consolidated financial statements of the Company prepared in accordance with GAAP (excluding any adjustments made pursuant to FAS 133). 
 “Newly Acquired Restricted Subsidiary” has the meaning set forth above in the definition of “Consolidated Cash
Flow”. 
 “Non-Recourse Debt” means Indebtedness: 
 (1) as to which neither the Company nor any Restricted Subsidiary (a) provides any Guarantee or credit support of any kind (including
any undertaking, Guarantee, indemnity, agreement or instrument that would constitute Indebtedness) or (b) is directly or indirectly liable (as a guarantor or otherwise), in each case other than Liens on and pledges of the Equity Interests of
any Unrestricted Subsidiary or any joint venture owned by the Company or any Restricted Subsidiary to the extent securing otherwise Non-Recourse Debt of such Unrestricted Subsidiary or joint venture; and 
 (2) no default with respect to which (including any rights that the holders thereof may have to take enforcement action against an
Unrestricted Subsidiary) would permit (upon notice, lapse of time or both) any holder of any other Indebtedness of the Company or any Restricted Subsidiary to declare a default under such other Indebtedness or cause the payment thereof to be
accelerated or payable prior to its Stated Maturity. 
 “Non-U.S. Person” means a Person who is not a U.S.
Person. 
 “Notes” means a series of Securities designated as the Company’s 12% Senior Notes due 2018,
issued pursuant to the Original Indenture, as amended and supplemented by the First Supplemental Indenture. 
 “Notice
of Default” means a written notice of the kind specified in Section 5.1(a)(iv) or Section 5.1(a)(v) of this Indenture. 
 “Obligations” means any principal, interest, penalties, fees, indemnifications, reimbursements, damages and other liabilities payable under the documentation governing any Indebtedness. 
 “Offer Amount” has the meaning set forth in Section 10.12(g) of this Indenture. 
 “Offer Period” has the meaning set forth in Section 10.12(g) of this Indenture. 
  

 First Supplemental Indenture 
 22 

 “Oil and Gas Properties” means all Properties, including equity or other
ownership interests therein, owned by such Person which contain “proved oil and gas reserves” as defined in Rule 4-10 of Regulation S-X of the Securities Act. 
 “Oil and Natural Gas Hedging Contract” means any oil and natural gas hedging agreements and other agreements or
arrangements entered into in the ordinary course of business in the oil and gas industry for the purpose of protecting against fluctuations in oil or natural gas prices. 
 “Original Indenture” means the Indenture dated as of February 8, 2008 by and between the Company and the Trustee.

 “Parent” means any entity that becomes the holder of 100% of the outstanding Equity Interests of the
Company in a transaction in which the Beneficial Owners of the Company immediately prior to such transaction are Beneficial Owners in the same proportion of the Company immediately after such transaction. 
 “Participant” means, with respect to the Depositary, Euroclear or Clearstream, a Person who has an account with the
Depositary, Euroclear or Clearstream, respectively (and, with respect to DTC, shall include Euroclear and Clearstream). 
 “Permitted Acquisition Indebtedness” means Indebtedness or Disqualified Stock of the Company or any of the Company’s Restricted Subsidiaries to the extent such Indebtedness or Disqualified Stock was Indebtedness or
Disqualified Stock of: 
 (1) a Subsidiary prior to the date on which such Subsidiary became a Restricted Subsidiary; or

 (2) a Person that was merged or consolidated into the Company or a Restricted Subsidiary, 
 provided that on the date such Subsidiary became a Restricted Subsidiary or the date such Person was merged and consolidated into the Company or a
Restricted Subsidiary, as applicable, after giving pro forma effect thereto, 
 (a) the Restricted Subsidiary or the Company,
as applicable, would be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 10.11(a) of this Indenture, or 
 (b) the Fixed Charge Coverage Ratio for the Restricted Subsidiary or the Company, as applicable, would be greater than the Fixed Charge
Coverage Ratio for such Restricted Subsidiary or the Company immediately prior to such transaction. 
 “Permitted
Business Investments” means Investments and expenditures made in the ordinary course of, and of a nature that is or shall have become customary in, a Related Business as means of actively exploiting, exploring for, acquiring, developing,
processing, gathering, marketing or transporting oil, natural gas, other hydrocarbons and minerals (including with respect to plugging and abandonment) through agreements, transactions, interests or arrangements that permit one to share risks or
costs, comply with regulatory requirements 

  

 First Supplemental Indenture 
 23 

 
regarding local ownership or satisfy other objectives customarily achieved through the conduct of a Related Business jointly with third parties, including
without limitation, (i) ownership interests in oil, natural gas, other hydrocarbons and minerals properties or gathering, transportation, processing, storage or related systems and (ii) any operating agreements, joint ventures, partnership
agreements, working interests, royalty interests, mineral leases, processing agreements, Farm-In Agreements, Farm-Out Agreements, contracts for the sale, transportation or exchange of oil, natural gas and other hydrocarbons, unitization agreements,
pooling arrangements, joint bidding agreements, service contracts, partnership agreements, limited liability company agreements, subscription agreements, stock purchase agreements, stockholder agreements, area of mutual interest agreements,
production sharing agreements or other similar or customary agreements, transactions, properties, interests, or arrangements, and Investments and expenditures in connection therewith or pursuant thereto. Notwithstanding the foregoing,
“Permitted Business Investments” shall not include Investments in a Master Limited Partnership. 
 “Permitted Investments” means: 
 (1) any Investment in the Company or in a Restricted Subsidiary;

 (2) any Investment in Cash Equivalents; 
 (3) any Investment by the Company or any Restricted Subsidiary in a Person, if as a result of such Investment: 
 (a) such Person becomes a Restricted Subsidiary; or 
 (b) such Person is merged or consolidated with or into, or transfers or conveys substantially all of its assets to, or is liquidated
into, the Company or a Restricted Subsidiary; 
 (4) any Investment made as a result of the receipt of non-cash consideration
from an Asset Sale that was made pursuant to and in compliance with Section 10.12 of this Indenture; 
 (5) any
Investments received in compromise or resolution of (a) obligations of trade creditors or customers that were incurred in the ordinary course of business of the Company or any of its Restricted Subsidiaries, including pursuant to any plan of
reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer; or (b) litigation, arbitration or other disputes with Persons who are not Affiliates; 
 (6) Investments represented by Hedging Obligations; 
 (7) advances to or reimbursements of employees for moving, entertainment and travel expenses, drawing accounts and similar expenditures in
the ordinary course of business; 
 (8) loans or advances to employees in the ordinary course of business or consistent with
past practice; 
 (9) advances and prepayments for asset purchases in the ordinary course of business in a Related Business of
the Company or any of its Restricted Subsidiaries; 
  

 First Supplemental Indenture 
 24 

 (10) receivables owing to the Company or any Restricted Subsidiary created or acquired in
the ordinary course of business and payable or dischargeable in accordance with customary trade terms; provided, however, that such trade terms may include such concessionary trade terms as the Company or any such Restricted Subsidiary
deems reasonable under the circumstances; 
 (11) surety and performance bonds and workers’ compensation, utility, lease,
tax, performance and similar deposits and prepaid expenses in the ordinary course of business; 
 (12) guarantees by the
Company or any of its Restricted Subsidiaries of operating leases (other than Capital Lease Obligations) or of other obligations that do not constitute Indebtedness, in each case entered into by the Company or any such Restricted Subsidiary in the
ordinary course of business; 
 (13) Investments of a Restricted Subsidiary acquired after the Issue Date or of any entity
merged into the Company or merged into or consolidated with a Restricted Subsidiary in accordance with Article Eight or Section 14.4 (as applicable) of this Indenture to the extent that such Investments were not made in contemplation of or in
connection with such acquisition, merger or consolidation and were in existence on the date of such acquisition, merger or consolidation; 
 (14) Permitted Business Investments; 
 (15) Investments in a Master Limited Partnership
received in consideration for contributions made by the Company or any of its Restricted Subsidiaries from time to time to such Master Limited Partnership of properties and assets that are used or useful in a Related Business; provided that,
with respect to each such contribution (i) the Company or the applicable Restricted Subsidiary receives consideration with a Fair Market Value at the time of such contribution at least equal to the Fair Market Value of the properties and assets
contributed and (ii) after giving pro forma effect thereto and to any related financing transactions as if each had occurred at the beginning of the Company’s most recently ended four full fiscal quarters for which internal financial
statements are available, the Company’s Leverage Ratio would not have exceeded 2.5 to 1; 
 (16) Investments received as
a result of a foreclosure by the Company or any of its Restricted Subsidiaries with respect to any secured Investment in default; 
 (17) Investments in any units of any oil and gas royalty trust; 
 (18) Investments existing on the Issue Date, and
any extension, modification or renewal of any such Investments existing on the Issue Date, but only to the extent not involving additional advances, contributions or other Investments of cash or other assets or other increases of such Investments
(other than as a result of the accrual or accretion of interest or original issue discount or the issuance of pay-in-kind securities, in each case, pursuant to the terms of such Investments as in effect on the Issue Date); 
 (19) repurchases of or other Investments in the Notes; and 
 (20) other Investments in any Person having an aggregate Fair Market Value (measured on the date each such Investment was made and without
giving effect to 

  

 First Supplemental Indenture 
 25 

 
subsequent changes in value), when taken together with all other Investments made pursuant to this clause (20) that are at the time outstanding not to
exceed the greater of (a) 3.0% of Adjusted Consolidated Net Tangible Assets or (b) $25.0 million. 
 “Permitted Liens” means, with respect to any Person: 
 (1) Liens securing Indebtedness incurred
under Credit Facilities pursuant to Section 10.11 of this Indenture; 
 (2) Liens to secure Indebtedness (including
Capital Lease Obligations) permitted by clause (iv) of Section 10.11(b) of this Indenture covering only the assets acquired with or financed by such Indebtedness; 
 (3) pledges or deposits by such Person under workmen’s compensation laws, unemployment insurance laws or similar legislation, or good
faith deposits in connection with bids, tenders, contracts (other than for the payment of Indebtedness) or leases to which such Person is a party, or deposits to secure public or statutory obligations of such Person or deposits or cash or United
States government bonds to secure surety or appeal bonds to which such Person is a party, or deposits as security for contested taxes or import or customs duties or for the payment of rent, in each case incurred in the ordinary course of business;

 (4) landlords’, carriers’, warehousemen’s, mechanics’, materialmen’s, repairmen’s or similar
Liens arising by contract or statute in the ordinary course of business and with respect to amounts which are not yet delinquent or are being contested in good faith by appropriate proceedings; 
 (5) Liens for taxes, assessments or other governmental charges or which are being contested in good faith by appropriate proceedings
provided appropriate reserves required pursuant to GAAP have been made in respect thereof; 
 (6) Liens in favor of the
issuers of surety or performance bonds or letters of credit or bankers’ acceptances issued pursuant to the request of and for the account of such Person in the ordinary course of its business; provided, however, that such letters
of credit do not constitute Indebtedness; 
 (7) encumbrances, easements or reservations of, or rights of others for,
licenses, rights of way, sewers, electric lines, telegraph and telephone lines and other similar purposes, or zoning or other restrictions as to the use of real properties or Liens incidental to the conduct of the business of such Person or to the
ownership of its properties which do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person; 
 (8) leases and subleases of real property which do not materially interfere with the ordinary conduct of the business of the Company and
its Restricted Subsidiaries, taken as a whole; 
 (9) any attachment or judgment Liens not giving rise to an Event of Default;

 (10) Liens for the purpose of securing the payment of all or a part of the purchase price of, or Capital Lease Obligations
with respect to, or the repair, improvement or construction cost of, assets or property acquired or repaired, improved or constructed in the ordinary course of business; provided that: 
 (a) the aggregate principal amount of Indebtedness secured by such Liens is otherwise permitted to be incurred under this Indenture and
does not exceed the cost of the assets or property so acquired or repaired, improved or constructed plus fees and expenses in connection therewith; and 
  

 First Supplemental Indenture 
 26 

 (b) such Liens are created within 180 days of repair, improvement or construction or
acquisition of such assets or property and do not encumber any other assets or property of the Company or any Restricted Subsidiary other than such assets or property and assets affixed or appurtenant thereto (including improvements); 
 (11) Liens arising solely by virtue of any statutory or common law provisions relating to banker’s Liens, rights of set-off or
similar rights and remedies as to deposit accounts or other funds maintained or deposited with a depositary institution; provided that: 
 (a) such deposit account is not a dedicated cash collateral account and is not subject to restrictions against access by the Company in excess of those set forth by regulations promulgated by the Federal Reserve
Board; and 
 (b) such deposit account is not intended by the Company or any Restricted Subsidiary to provide collateral to
the depository institution; 
 (12) Liens arising from Uniform Commercial Code financing statement filings regarding operating
leases entered into by the Company and its Restricted Subsidiaries in the ordinary course of business; 
 (13) Liens existing
on the Issue Date; 
 (14) Liens on property at the time the Company or a Restricted Subsidiary acquired the property,
including any acquisition by means of a merger or consolidation with or into the Company or a Restricted Subsidiary; provided, however, that such Liens are not created, incurred or assumed in connection with, or in contemplation of,
such acquisition; provided further, however, that such Liens may not extend to any other property owned by the Company or any Restricted Subsidiary other than those of the Person merged or consolidated with the Company or such
Restricted Subsidiary; 
 (15) Liens on property or shares of stock of a Person at the time such Person becomes a Restricted
Subsidiary; provided, however, that such Liens are not created, incurred or assumed in connection with, or in contemplation of, such other Person becoming a Restricted Subsidiary; provided further, however, that such
Liens may not extend to any other property owned by the Company or any Restricted Subsidiary; 
 (16) Liens securing
Indebtedness or other obligations of a Restricted Subsidiary owing to the Company or a Guarantor; 
 (17) Liens securing the
Notes, the Subsidiary Guarantees and other obligations arising under this Indenture; 
  

 First Supplemental Indenture 
 27 

 (18) Liens securing Permitted Refinancing Indebtedness of the Company or a Restricted
Subsidiary incurred to refinance Indebtedness of the Company or a Restricted Subsidiary that was previously so secured; provided that any such Lien is limited to all or part of the same property or assets (plus improvements, accessions,
proceeds or dividends or distributions in respect thereof) that secured (or, under the written arrangements under which the original Lien arose, could secure) the Indebtedness being refinanced or is in respect of property or assets that is the
security for a Permitted Lien hereunder; 
 (19) Liens in respect of Production Payments and Reserve Sales; 
 (20) Liens on pipelines and pipeline facilities that arise by operation of law; 
 (21) Liens arising under joint venture agreements, partnership agreements, oil and gas leases or subleases, assignments, purchase and sale
agreements, division orders, contracts for the sale, purchasing, processing, transportation or exchange of oil or natural gas, unitization and pooling declarations and agreements, development agreements, area of mutual interest agreements, licenses,
sublicenses, net profits interests, participation agreements, Farm-Out Agreements, Farm-In Agreements, carried working interest, joint operating, unitization, royalty, sales and similar agreements relating to the exploration or development of, or
production from, Oil and Gas Properties entered into in the ordinary course of business in a Related Business; 
 (22) Liens
reserved in oil and gas mineral leases for bonus, royalty or rental payments and for compliance with the terms of such leases; 
 (23) Liens on, or related to, properties or assets to secure all or part of the costs incurred in the ordinary course of a Related Business for exploration, drilling, development, production, processing, transportation, marketing, storage,
abandonment or operation; 
 (24) Liens arising under this Indenture in favor of the Trustee for its own benefit and similar
Liens in favor of other trustees, agents and representatives arising under instruments governing Indebtedness permitted to be incurred under this Indenture, provided that such Liens are solely for the benefit of the trustees, agents or
representatives in their capacities as such and not for the benefit of the holders of the Indebtedness; 
 (25) Liens securing
obligations of the Company and its Restricted Subsidiaries under non-speculative Hedging Obligations; 
 (26) Liens on and
pledges of the Equity Interests of any Unrestricted Subsidiary or any joint venture owned by the Company or any Restricted Subsidiary to the extent securing Non-Recourse Debt of such Unrestricted Subsidiary or joint venture; 
 (27) Liens securing Indebtedness of any Foreign Subsidiary which Indebtedness is permitted by this Indenture; and 
 (28) Liens incurred in the ordinary course of business of the Company or any Restricted Subsidiary with respect to obligations that, at
any one time outstanding, do not exceed the greater of $25.0 million and 3.0% of Adjusted Consolidated Net Tangible Assets. 
  

 First Supplemental Indenture 
 28 

 “Permitted Payments to Parent” means, for so long as the Company is a
member of a group filing a consolidated or combined tax return with the Parent, payments to the Parent in respect of an allocable portion of the tax liabilities of such group that is attributable to the Company and its Subsidiaries (“Tax
Payments”). The Tax Payments shall not exceed the lesser of (a) the amount of the relevant tax (including any penalties and interest) that the Company would owe if the Company were filing a separate tax return (or a separate
consolidated or combined return with its Subsidiaries that are members of the consolidated or combined group), taking into account any carryovers and carrybacks of tax attributes (such as net operating losses) of the Company and such Subsidiaries
from other taxable years and (b) the net amount of the relevant tax that the Parent actually owes to the appropriate taxing authority. Any Tax Payments received from the Company shall be paid to the appropriate taxing authority within 30 days
of the Parent’s receipt of such Tax Payments or refunded to the Company. 
 “Permitted Refinancing
Indebtedness” means any Indebtedness of the Company or any of its Restricted Subsidiaries, any Disqualified Stock of the Company or any preferred stock of any Restricted Subsidiary (a) issued in exchange for, or the net proceeds of
which are used to extend, renew, refund, refinance, replace, defease, discharge or otherwise retire for value, in whole or in part, or (b) constituting an amendment, modification or supplement to or a deferral or renewal of ((a) and
(b) above, collectively, a “Refinancing”), any other Indebtedness of the Company any of its Restricted Subsidiaries (other than intercompany Indebtedness), any Disqualified Stock of the Company or any preferred stock of a Restricted
Subsidiary in a principal amount or, in the case of Disqualified Stock of the Company or preferred stock of a Restricted Subsidiary, liquidation preference, not to exceed (after deduction of reasonable and customary fees and expenses incurred in
connection with the Refinancing) the lesser of: 
 (1) the principal amount or, in the case of Disqualified Stock or preferred
stock, liquidation preference, of the Indebtedness, Disqualified Stock or preferred stock so Refinanced (plus, in the case of Indebtedness, the amount of premium, if any paid in connection therewith), and 
 (2) if the Indebtedness being Refinanced was issued with any original issue discount, the accreted value of such Indebtedness (as
determined in accordance with GAAP) at the time of such Refinancing. 
 Notwithstanding the preceding, no Indebtedness,
Disqualified Stock or preferred stock will be deemed to be Permitted Refinancing Indebtedness, unless: 
 (1) such
Indebtedness, Disqualified Stock or preferred stock has a final maturity date or redemption date, as applicable, later than the final maturity date or redemption date, as applicable, of, and has a Weighted Average Life to Maturity equal to or
greater than the Weighted Average Life to Maturity of, the Indebtedness, Disqualified Stock or preferred stock being Refinanced; 
 (2) if the Indebtedness, Disqualified Stock or preferred stock being Refinanced is contractually subordinated or otherwise junior in right of payment to the Notes, such Indebtedness, Disqualified Stock or preferred stock has a final
maturity date or redemption date, as applicable, later than the final maturity date or redemption date, as applicable, of, and is contractually subordinated or otherwise junior in right of payment to, the Notes, on terms at least as favorable to the
Holders of Notes as those contained in the documentation governing the Indebtedness, Disqualified Stock or preferred stock being Refinanced at the time of the Refinancing; and 
  

 First Supplemental Indenture 
 29 

 (3) such Indebtedness or Disqualified Stock is incurred or issued by the Company or such
Indebtedness, Disqualified Stock or preferred stock is incurred or issued by the Restricted Subsidiary who is the obligor on the Indebtedness being Refinanced or the issuer of the Disqualified Stock or preferred stock being Refinanced;
provided that a Restricted Subsidiary that is also a Guarantor may guarantee Permitted Refinancing Indebtedness incurred by the Company, regardless of whether such Restricted Subsidiary was an obligor or guarantor of the Indebtedness being
renewed, refunded, refinanced, replaced, defeased or discharged. 
 “Principal Property” means any asset or
property owned or leased by the Company or any Subsidiary of the Company, the gross book value of which exceeds 1% of the Consolidated Net Worth of the Company. 
 “Private Placement Legend” means the legend set forth in Section 3.5(f)(1) of this Indenture to be placed on all
Notes issued under this Indenture except where otherwise permitted by the provisions of this Indenture. 
 “Production
Payments” means Dollar-Denominated Production Payments and Volumetric Production Payments, collectively. 
 “Production Payments and Reserve Sales” means the grant or transfer by the Company or a Subsidiary of the Company to any Person of a royalty, overriding royalty, net profits interest, Production Payment, partnership or
other interest in Oil and Gas Properties, reserves or the right to receive all or a portion of the production or the proceeds from the sale of production attributable to such properties, including any such grants or transfers pursuant to incentive
compensation programs on terms that are reasonably customary in the oil and gas business for geologists, geophysicists and other providers of technical services to the Company or a Subsidiary of the Company. 
 “Purchase Date” has the meaning set forth in Section 10.12(g) of this Indenture. 
 “QIB” means a “qualified institutional buyer” as defined in Rule 144A. 
 “Registration Rights Agreement” means that certain registration rights agreement dated as of the Issue Date by and among
the Company and the initial purchasers set forth therein. 
 “Regulation S” means Regulation S promulgated
under the Securities Act. 
 “Regulation S Global Note” means a Global Note substantially in the form of
Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee, issued in a denomination equal to the outstanding principal
amount of the Notes sold in reliance on Rule 903 of Regulation S. 
 “Related Business” means any business
which is the same as or related, ancillary or complementary to any of the businesses of the Company and its Restricted Subsidiaries on the Issue Date, which includes (a) the acquisition, exploration, exploitation, development, production,
operation and disposition of interests in oil, gas and other hydrocarbon properties, and the utilization of the Company’s and its Restricted Subsidiaries’ properties, (b) the gathering, marketing, treating, processing, storage,
refining, selling and transporting of any production from such interests or properties and products produced in association therewith, (c) any power 

  

 First Supplemental Indenture 
 30 

 
generation and electrical transmission business, (d) oil field sales and services and related activities, (e) development, purchase and sale of
real estate and interests therein, and (f) any business or activity relating to, arising from, or necessary, appropriate or incidental to the activities described in the foregoing clauses (a) through (e) of this definition.

 “Restricted Definitive Note” means a Definitive Note bearing the Private Placement Legend. 
 “Restricted Global Note” means a Global Note bearing the Private Placement Legend. 
 “Restricted Investment” means any Investment other than a Permitted Investment. 
 “Restricted Period” means the 40-day distribution compliance
period as defined in Regulation S. 
 “Restricted Subsidiary” means any Subsidiary of the Company other than
an Unrestricted Subsidiary. 
 “Rule 144” means Rule 144 promulgated under the Securities Act. 
 “Rule 144A” means Rule 144A promulgated under the Securities Act. 
 “Rule 903” means Rule 903 promulgated under the Securities Act. 
 “Rule 904” means Rule 904 promulgated under the Securities Act. 
 “S&P” means Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc.

 “Securities Act” means the Securities Act of 1933, as amended. 
 “Senior Credit Agreement” means the Credit Agreement, dated as of November 4, 2005, among the Company, JPMorgan
Chase Bank, N.A., as administrative agent, and the lenders and agents parties thereto from time to time and any related notes, Guarantees, collateral documents, instruments and agreements executed in connection therewith, and in each case as
amended, restated, modified, supplemented, increased, renewed, refunded, replaced (including replacement after the termination of such credit facility), supplemented, restructured or refinanced in whole or in part from time to time in one or more
agreements or instruments. 
 “Senior Debt” means: 
 (1) all Indebtedness of the Company or any of its Restricted Subsidiaries outstanding under Credit Facilities and all Hedging Obligations
with respect thereto; 
 (2) any other Indebtedness of the Company or any of its Restricted Subsidiaries permitted to be
incurred under the terms of this Indenture, unless the instrument under which such Indebtedness is incurred expressly provides that it is subordinated in right of payment to the Notes or any Subsidiary Guarantee; and 
 (3) all Obligations with respect to the items listed in the preceding clauses (1) and (2). 
  

 First Supplemental Indenture 
 31 

 Notwithstanding anything to the contrary in the preceding sentence, Senior Debt will not
include: 
 (a) any intercompany Indebtedness of the Company or any of its Subsidiaries to the Company or any of its
Affiliates; 
 (b) any Indebtedness that is incurred in violation of this Indenture; or 
 (c) any trade payables or taxes owed or owing by the Company or any Restricted Subsidiary. 
 “Senior Net Leverage Ratio” means, with respect to any Person as of any date of determination, the ratio of (x) the
total consolidated Senior Debt of such Person and its Restricted Subsidiaries as of the end of the most recent fiscal quarter for which internal financial statements are available, which would be reflected as a liability on a consolidated balance
sheet of such Person and its Restricted Subsidiaries prepared as of such date in accordance with GAAP less the amount of cash of such Person and its Restricted Subsidiaries as of the end of such fiscal quarter which would be reflected on a
consolidated balance sheet of such Person and its Restricted Subsidiaries prepared as of such date in accordance with GAAP, to (y) the aggregate amount of Consolidated Cash Flow of such Person for the then most recent four fiscal quarters for
which internal financial statements are available, in each case with such pro forma adjustments to the amount of consolidated Indebtedness and Consolidated Cash Flow as are appropriate and consistent with the pro forma adjustment provisions set
forth in the definition of Fixed Charge Coverage Ratio. 
 “Shelf Registration Statement” means the Shelf
Registration Statement as defined in the Registration Rights Agreement. 
 “Significant Subsidiary” means any
Restricted Subsidiary that would be a “significant subsidiary” of the Company within the meaning of Rule 1-02 under Regulation S-X under the Securities Act. 
 “Stated Maturity” means, with respect to any installment of interest or principal on any series of Indebtedness, the date
on which the payment of interest or principal was scheduled to be paid in the documentation governing such Indebtedness as of the Issue Date, and will not include any contingent obligations to repay, redeem or repurchase any such interest or
principal prior to the date originally scheduled for the payment thereof. 
 “Subordinated Debt” means
Indebtedness of the Company or a Guarantor that is contractually subordinated in right of payment (by its terms or the terms of any document or instrument relating thereto), to the Notes or the Subsidiary Guarantee of such Guarantor, as applicable.

 “Subsidiary” means, with respect to any specified Person: 
 (1) any corporation, association or other business entity of which more than 50% of the total voting power of shares of Capital Stock
entitled (without regard to the occurrence of any contingency and after giving effect to any voting agreement or stockholders’ agreement that effectively transfers voting power) to vote in the election of directors, managers or trustees of the
corporation, association or other business entity is at the time owned or controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and 
  

 First Supplemental Indenture 
 32 

 (2) any partnership (a) the sole general partner or the managing general partner of
which is such Person or a Subsidiary of such Person or (b) the only general partners of which are that Person or one or more Subsidiaries of that Person (or any combination thereof). 
 “Subsidiary Guarantee” means any Guarantee of the Notes by any Guarantor in accordance with Article Fourteen of this
Indenture. 
 “Tax Payments” has the meaning set forth above in the definition of “Permitted Payments
to Parent”. 
 “Unrestricted Definitive Note” means a Definitive Note that does not bear and is not
required to bear the Private Placement Legend. 
 “Unrestricted Global Note” means a Global Note that does
not bear and is not required to bear the Private Placement Legend. 
 “Unrestricted Subsidiary” means any
Subsidiary of the Company that is designated by the Board of Directors of the Company as an Unrestricted Subsidiary pursuant to a resolution of such Board of Directors, but only to the extent that such Subsidiary: 
 (1) has no Indebtedness other than Non-Recourse Debt; 
 (2) is a Person with respect to which neither the Company nor any of its Restricted Subsidiaries has any direct or indirect obligation
(a) to subscribe for additional Equity Interests (if it is not a Master Limited Partnership) or (b) to maintain or preserve such Person’s financial condition or to cause such Person to achieve any specified levels of operating
results; and 
 (3) has not guaranteed or otherwise directly or indirectly provided credit support for any Indebtedness of the
Company or any of its Restricted Subsidiaries, except to the extent such Guarantee or credit support would be released upon such designation. 
 “Volumetric Production Payments” means production payment obligations recorded as deferred revenue in accordance with GAAP, together with all related undertakings and obligations. 
 “Voting Stock” of any specified Person as of any date means the Capital Stock of such Person that is at the time entitled
to vote in the election of the Board of Directors of such Person. 
 “Weighted Average Life to Maturity”
means, when applied to any Indebtedness at any date, the number of years obtained by dividing: 
 (1) the sum of the products
obtained by multiplying (a) the amount of each then remaining installment, sinking fund, serial maturity or other required payments of principal, including payment at final maturity, in respect of the Indebtedness, by (b) the number of
years (calculated to the nearest one-twelfth) that will elapse between such date and the making of such payment; by 
  

 First Supplemental Indenture 
 33 

 (2) the then outstanding principal amount of such Indebtedness. 
 SECTION 3.02. References to Liquidated Damages. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, the Original Indenture is hereby amended such that
each reference to “interest” appearing therein shall be deemed to refer to “interest and Liquidated Damages, if any”. 
 SECTION 3.03. Registration, Registration of Transfer and Exchange. 
 Subject to the limitations set
forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, Section 3.5 of the Original Indenture is hereby amended to add the following language at the end of such Section. 
 Notwithstanding the foregoing paragraphs of this Section 3.5, the terms and provisions set forth in the following clauses (a) through
(h) shall also apply to the Notes. To the extent that any of the terms and provisions of the following clauses (a) through (h) conflict with the express provisions of the foregoing paragraphs of this Section 3.5, the terms and
provisions of such clauses (a) through (h) shall govern and be controlling. 
 (a) Transfer and Exchange of Global Notes. A
Global Note may not be transferred as a whole except by the Depositary to a nominee of the Depositary, by a nominee of the Depositary to the Depositary or to another nominee of the Depositary, or by the Depositary or any such nominee to a successor
Depositary or a nominee of such successor Depositary. All Global Notes will be exchanged by the Company for Definitive Notes if: 
 (1) the Company delivers to the Trustee notice from the Depositary that it is unwilling or unable to continue to act as Depositary or that it is no longer a clearing agency registered under the Exchange Act and, in either case, a successor
Depositary is not appointed by the Company within 120 days after the date of such notice from the Depositary; 
 (2) the Company in its sole discretion determines that the Global Notes (in whole
but not in part) should be exchanged for Definitive Notes and delivers a written notice to such effect to the Trustee; provided that in no event shall the Regulation S Global Note be exchanged by the Company for Definitive Notes prior to the
expiration of the Restricted Period; or 
 (3) there has occurred and is continuing a Default or Event of Default with respect
to the Notes. 
 Upon the occurrence of any of the preceding events in (1), (2) or (3) above, Definitive Notes shall be issued in
such names as the Depositary shall instruct the Trustee. Global Notes also may be exchanged or replaced, in whole or in part, as provided in Sections 3.4 and 3.6 of this Indenture. Every Note authenticated and delivered in exchange for, or in lieu
of, a Global Note or any portion thereof, pursuant to this Section 3.5 or Sections 3.4 and 3.6 of this Indenture, shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note may not be exchanged for another
Note other than as provided in this Section 3.5(a), however, beneficial interests in a Global Note may be transferred and exchanged as provided in Section 3.5(b), (c) or (f) hereof. 
 (b) Transfer and Exchange of Beneficial Interests in the Global Notes. The transfer and exchange of beneficial interests in the Global Notes will
be effected through the Depositary, in accordance with the provisions of this Indenture and the Applicable Procedures. Beneficial interests in 

  

 First Supplemental Indenture 
 34 

 
the Restricted Global Notes will be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act.
Transfers of beneficial interests in the Global Notes also will require compliance with either subparagraph (1) or (2) below, as applicable, as well as one or more of the other following subparagraphs, as applicable: 
 (1) Transfer of Beneficial Interests in the Same Global Note. Beneficial interests in any Restricted Global Note may be transferred
to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with the transfer restrictions set forth in the Private Placement Legend; provided, however, that prior to the
expiration of the Restricted Period, transfers of beneficial interests in the Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Beneficial interests in any
Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Security Registrar to
effect the transfers described in this Section 3.5(b)(1). 
 (2) All Other Transfers and Exchanges of Beneficial
Interests in Global Notes. In connection with all transfers and exchanges of beneficial interests that are not subject to Section 3.5(b)(1) above, the transferor of such beneficial interest must deliver to the Security Registrar either:

 (A) both: 
 (i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to credit or cause to be credited a beneficial interest
in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged; and 
 (ii) instructions
given in accordance with the Applicable Procedures containing information regarding the Participant account to be credited with such increase; or 
 (B) both: 
 (i) a written order from a Participant or an Indirect Participant given to the
Depositary in accordance with the Applicable Procedures directing the Depositary to cause to be issued a Definitive Note in an amount equal to the beneficial interest to be transferred or exchanged; and 
 (ii) instructions given by the Depositary to the Security Registrar containing information regarding the Person in whose name such
Definitive Note shall be registered to effect the transfer or exchange referred to in (1) above; provided that in no event shall Definitive Notes be issued upon the transfer or exchange of beneficial interests in the Regulation S Global
Note prior to the expiration of the Restricted Period. 
 Upon consummation of an Exchange Offer by the Company in accordance with Section 3.5(f)
hereof, the requirements of this Section 3.5(b)(2) shall be deemed to have been satisfied upon receipt by the Security Registrar of the instructions contained in the Letter of Transmittal delivered by the Holder of such beneficial interests in
the Restricted Global Notes. Upon satisfaction of all of the requirements for 

  

 First Supplemental Indenture 
 35 

 
transfer or exchange of beneficial interests in Global Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the
Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 3.5(h) hereof. 
 (3)
Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in any Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted
Global Note if the transfer complies with the requirements of Section 3.5(b)(2) above and the Security Registrar receives the following: 
 (A) if the transferee will take delivery in the form of a beneficial interest in the 144A Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the
certifications in item (1) thereof; 
 (B) if the transferee will take delivery in the form of a beneficial interest in
the Regulation S Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and 
 (C) if the transferee will take delivery in the form of a beneficial interest in the IAI Global Note, then the transferor must deliver a
certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable. 
 (4) Transfer and Exchange of Beneficial Interests in a Restricted Global Note for Beneficial Interests in an Unrestricted Global
Note. A beneficial interest in any Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest
in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 3.5(b)(2) above and: 
 (A) such exchange or transfer is effected pursuant to the Exchange Offer in accordance with the Registration Rights Agreement and the holder of the beneficial interest to be transferred, in the case of an exchange, or the transferee, in the
case of a transfer, certifies in the applicable Letter of Transmittal that it is not (i) a Broker-Dealer, (ii) a Person participating in the distribution of the Exchange Notes or (iii) a Person who is an affiliate (as defined in Rule
144) of the Company; 
 (B) such transfer is effected pursuant to the Shelf Registration Statement in accordance with the
Registration Rights Agreement; 
 (C) such transfer is effected by a Broker-Dealer pursuant to the Exchange Offer
Registration Statement in accordance with the Registration Rights Agreement; or 
 (D) the Security Registrar receives the
following: 
 (i) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial
interest for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(a) thereof; or 
  

 First Supplemental Indenture 
 36 

 (ii) if the holder of such beneficial interest in a Restricted Global Note proposes to
transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in
item (4) thereof; 
 and, in each such case set forth in this subparagraph (D), if the Security Registrar so requests or if the
Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Security Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained
herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. 
 If any such
transfer is effected pursuant to subparagraph (B) or (D) above at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of a Company Order in accordance with Section 3.3 of this
Indenture, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred pursuant to subparagraph (B) or (D) above.

 Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred to Persons who take delivery thereof in the
form of, a beneficial interest in a Restricted Global Note. 
 (c) Transfer or Exchange of Beneficial Interests for Definitive Notes.

 (1) Beneficial Interests in Restricted Global Notes to Restricted Definitive Notes. If any holder of a beneficial
interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Restricted Definitive Note, then,
upon receipt by the Security Registrar of the following documentation: 
 (A) if the holder of such beneficial interest in a
Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (2)(a) thereof; 
 (B) if such beneficial interest is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in
Exhibit B hereto, including the certifications in item (1) thereof; 
 (C) if such beneficial interest is being
transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof; 
 (D) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act in
accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof; 
 (E) if such beneficial interest is being transferred to an Institutional Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in
subparagraphs (B) through (D) above, a certificate to the effect set forth in Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable; 
  

 First Supplemental Indenture 
 37 

 (F) if such beneficial interest is being transferred to the Company or any of its
Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof; or 
 (G) if such beneficial interest is being transferred pursuant to an effective registration statement under the Securities Act, a certificate to the effect set forth in Exhibit B hereto, including the
certifications in item (3)(c) thereof, 
 the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly
pursuant to Section 3.5(h) hereof, and the Company shall execute and the Trustee shall authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in
exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 3.5(c) shall be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest shall
instruct the Security Registrar through instructions from the Depositary and the Participant or Indirect Participant. The Trustee shall deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note
issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 3.5(c)(1) shall bear the Private Placement Legend and shall be subject to all restrictions on transfer contained therein. 
 (2) Beneficial Interests in Restricted Global Notes to Unrestricted Definitive Notes. A holder of a beneficial interest in a
Restricted Global Note may exchange such beneficial interest for an Unrestricted Definitive Note or may transfer such beneficial interest to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note only if: 
 (A) such exchange or transfer is effected pursuant to the Exchange Offer in accordance with the Registration Rights Agreement and the
holder of such beneficial interest, in the case of an exchange, or the transferee, in the case of a transfer, certifies in the applicable Letter of Transmittal that it is not (i) a Broker-Dealer, (ii) a Person participating in the
distribution of the Exchange Notes or (iii) a Person who is an affiliate (as defined in Rule 144) of the Company; 
 (B)
such transfer is effected pursuant to the Shelf Registration Statement in accordance with the Registration Rights Agreement; 
 (C) such transfer is effected by a Broker-Dealer pursuant to the Exchange Offer Registration Statement in accordance with the Registration Rights Agreement; or 
 (D) the Security Registrar receives the following: 
 (i) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for an
Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(b) thereof; or 
  

 First Supplemental Indenture 
 38 

 (ii) if the holder of such beneficial interest in a Restricted Global Note proposes to
transfer such beneficial interest to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item
(4) thereof; 
 and, in each such case set forth in this subparagraph (D), if the Security Registrar so requests or if the Applicable
Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Security Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in
the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. 
 (3)
Beneficial Interests in Unrestricted Global Notes to Unrestricted Definitive Notes. If any holder of a beneficial interest in an Unrestricted Global Note proposes to exchange such beneficial interest for a Definitive Note or to transfer such
beneficial interest to a Person who takes delivery thereof in the form of a Definitive Note, then, upon satisfaction of the conditions set forth in Section 3.5(b)(2) hereof, the Trustee will cause the aggregate principal amount of the
applicable Global Note to be reduced accordingly pursuant to Section 3.5(h) hereof, and the Company will execute and the Trustee will authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate
principal amount. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 3.5(c)(3) will be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial
interest requests through instructions to the Security Registrar from or through the Depositary and the Participant or Indirect Participant. The Trustee will deliver such Definitive Notes to the Persons in whose names such Notes are so registered.
Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 3.5(c)(3) will not bear the Private Placement Legend. 
 (d) Transfer and Exchange of Definitive Notes for Beneficial Interests. 
 (1) Restricted
Definitive Notes to Beneficial Interests in Restricted Global Notes. If any Holder of a Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Definitive
Notes to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Security Registrar of the following documentation: 
 (A) if the Holder of such Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note,
a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (2)(b) thereof; 
 (B) if such Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof; 
 (C) if such Restricted Definitive Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or
Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof; 
 (D) if such Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto,
including the certifications in item (3)(a) thereof; 
  

 First Supplemental Indenture 
 39 

 (E) if such Restricted Definitive Note is being transferred to an Institutional
Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (B) through (D) above, a certificate to the effect set forth in Exhibit B hereto,
including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable; 
 (F) if
such Restricted Definitive Note is being transferred to the Company or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof; or 
 (G) if such Restricted Definitive Note is being transferred pursuant to an effective registration statement under the Securities Act, a
certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(c) thereof, 
 the Trustee will
cancel the Restricted Definitive Note, increase or cause to be increased the aggregate principal amount of, in the case of clause (A) above, the appropriate Restricted Global Note, in the case of clause (B) above, the 144A Global Note, in
the case of clause (C) above, the Regulation S Global Note, and in all other cases, the IAI Global Note. 
 (2)
Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of a Restricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Definitive
Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if: 
 (A) such exchange or transfer is effected pursuant to the Exchange Offer in accordance with the Registration Rights Agreement and the Holder, in the case of an exchange, or the transferee, in the case of a transfer, certifies in the
applicable Letter of Transmittal that it is not (i) a Broker-Dealer, (ii) a Person participating in the distribution of the Exchange Notes or (iii) a Person who is an affiliate (as defined in Rule 144) of the Company; 
 (B) such transfer is effected pursuant to the Shelf Registration Statement in accordance with the Registration Rights Agreement;

 (C) such transfer is effected by a Broker-Dealer pursuant to the Exchange Offer Registration Statement in accordance with
the Registration Rights Agreement; or 
 (D) the Security Registrar receives the following: 
 (i) if the Holder of such Definitive Notes proposes to exchange such Notes for a beneficial interest in the Unrestricted Global Note, a
certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(c) thereof; or 
 (ii) if the Holder of such Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of
Exhibit B hereto, including the certifications in item (4) thereof; 
  

 First Supplemental Indenture 
 40 

 and, in each such case set forth in this subparagraph (D), if the Security Registrar so requests or if
the Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Security Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained
herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. 
 Upon satisfaction of the conditions of any of the subparagraphs in this Section 3.5(d)(2), the Trustee will cancel the Definitive Notes and increase or cause to be increased the aggregate principal amount of the Unrestricted Global
Note. 
 (3) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of an
Unrestricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note
at any time. Upon receipt of a request for such an exchange or transfer, the Trustee will cancel the applicable Unrestricted Definitive Note and increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global
Notes. 
 If any such exchange or transfer from a Definitive Note to a beneficial interest is effected pursuant to
subparagraphs (2)(B), (2)(D) or (3) above at a time when an Unrestricted Global Note has not yet been issued, the Company will issue and, upon receipt of a Company Order in accordance with Section 3.3 of this Indenture, the Trustee
will authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of Definitive Notes so transferred. 
 (e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon request by a Holder of Definitive Notes and such Holder’s compliance with the provisions of this Section 3.5(e), the Security
Registrar will register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting Holder must present or surrender to the Security Registrar the Definitive Notes duly endorsed or accompanied by
a written instruction of transfer in form satisfactory to the Security Registrar duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting Holder must provide any additional certifications, documents
and information, as applicable, required pursuant to the following provisions of this Section 3.5(e). 
 (1)
Restricted Definitive Notes to Restricted Definitive Notes. Any Restricted Definitive Note may be transferred to and registered in the name of Persons who take delivery thereof in the form of a Restricted Definitive Note if the Security
Registrar receives the following: 
 (A) if the transfer will be made pursuant to Rule 144A, then the transferor must deliver
a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof; 
 (B) if the
transfer will be made pursuant to Rule 903 or Rule 904, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and 
  

 First Supplemental Indenture 
 41 

 (C) if the transfer will be made pursuant to any other exemption from the registration
requirements of the Securities Act, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable.

 (2) Restricted Definitive Notes to Unrestricted Definitive Notes. Any Restricted Definitive Note may be exchanged by
the Holder thereof for an Unrestricted Definitive Note or transferred to a Person or Persons who take delivery thereof in the form of an Unrestricted Definitive Note if: 
 (A) such exchange or transfer is effected pursuant to the Exchange Offer in accordance with the Registration Rights Agreement and the
Holder, in the case of an exchange, or the transferee, in the case of a transfer, certifies in the applicable Letter of Transmittal that it is not (i) a Broker-Dealer, (ii) a Person participating in the distribution of the Exchange Notes
or (iii) a Person who is an affiliate (as defined in Rule 144) of the Company; 
 (B) such transfer is effected pursuant
to the Shelf Registration Statement in accordance with the Registration Rights Agreement; 
 (C) such transfer is effected by
a Broker-Dealer pursuant to the Exchange Offer Registration Statement in accordance with the Registration Rights Agreement; or 
 (D) the Security Registrar receives the following: 
 (i) if the Holder of such Restricted Definitive Notes proposes
to exchange such Notes for an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(d) thereof; or 
 (ii) if the Holder of such Restricted Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the
form of an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof; 
 and, in each such case set forth in this subparagraph (D), if the Security Registrar so requests, an Opinion of Counsel in form reasonably acceptable to the Security Registrar to the effect that such exchange or
transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. 
 (3) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A Holder of Unrestricted Definitive Notes may transfer such
Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note. Upon receipt of a request to register such a transfer, the Security Registrar shall register the Unrestricted Definitive Notes pursuant to the instructions
from the Holder thereof. 
  

 First Supplemental Indenture 
 42 

 (f) Exchange Offer. Upon the occurrence of the Exchange Offer in accordance with the Registration
Rights Agreement, the Company will issue and, upon receipt of a Company Order in accordance with Section 3.3 of this Indenture, the Trustee will authenticate: 
 (1) one or more Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of the beneficial interests in
the Restricted Global Notes accepted for exchange in the Exchange Offer by Persons that certify in the applicable Letters of Transmittal that (A) they are not Broker-Dealers, (B) they are not participating in a distribution of the Exchange
Notes and (C) they are not affiliates (as defined in Rule 144) of the Company; and 
 (2) Unrestricted Definitive Notes
in an aggregate principal amount equal to the principal amount of the Restricted Definitive Notes accepted for exchange in the Exchange Offer by Persons that certify in the applicable Letters of Transmittal that (A) they are not Broker-Dealers,
(B) they are not participating in a distribution of the Exchange Notes and (C) they are not affiliates (as defined in Rule 144) of the Company. 
 Concurrently with the issuance of such Notes, the Trustee will cause the aggregate principal amount of the applicable Restricted Global Notes to be reduced accordingly, and the Company will execute and the Trustee
will authenticate and deliver to the Persons designated by the Holders of Definitive Notes so accepted Unrestricted Definitive Notes in the appropriate principal amount. 
 (g) Legends. The following legends will appear on the face of all Global Notes and Definitive Notes issued under this Indenture unless specifically stated otherwise in the applicable provisions of this
Indenture. 
 (1) Private Placement Legend. 
 (A) Except as permitted by subparagraph (B) below, each Global Note and each Definitive Note (and all Notes issued in exchange
therefor or substitution thereof) shall bear the legend in substantially the following form: 
 “THIS NOTE HAS NOT BEEN REGISTERED UNDER THE UNITED
STATES SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND ACCORDINGLY, MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, UNITED STATES PERSONS EXCEPT AS SET FORTH IN THE FOLLOWING
SENTENCE. BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) OR (B) IT IS NOT A UNITED STATES PERSON AND IS ACQUIRING THIS
NOTE IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT, OR (C) IT IS AN INSTITUTIONAL “ACCREDITED INVESTOR” (AS DEFINED IN RULE 501(a)(1), (2), (3) OR (7) OF REGULATION D UNDER THE
SECURITIES ACT) (AN “INSTITUTIONAL ACCREDITED INVESTOR”), (2) AGREES THAT IT WILL NOT, WITHIN THE TIME PERIOD REFERRED TO IN RULE 144(k) UNDER THE SECURITIES ACT AFTER THE ORIGINAL ISSUANCE OF THESE NOTES, RESELL OR OTHERWISE TRANSFER
THIS NOTE EXCEPT (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, (C) OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH
RULE 904 UNDER THE SECURITIES ACT, (D) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE), (E) INSIDE THE UNITED STATES TO AN INSTITUTIONAL ACCREDITED INVESTOR THAT, 

  

 First Supplemental Indenture 
 43 

 
PRIOR TO SUCH TRANSFER, FURNISHES TO THE TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER
OF THIS NOTE (THE FORM OF WHICH LETTER CAN BE OBTAINED FROM THE TRUSTEE) AND IF SUCH TRANSFER IS IN RESPECT OF AN AGGREGATE PRINCIPAL AMOUNT OF NOTES OF LESS THAN $100,000, AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH TRANSFER IS IN
COMPLIANCE WITH THE SECURITIES ACT, (F) IN ACCORDANCE WITH ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (AND BASED UPON AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY) OR (G) PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND (3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY TRANSFER OF THIS NOTE WITHIN THE
TIME PERIOD REFERRED TO IN RULE 144(k) UNDER THE SECURITIES ACT AFTER THE ORIGINAL ISSUANCE OF THESE NOTES, THE HOLDER MUST CHECK THE APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS CERTIFICATE
TO THE TRUSTEE. IF THE PROPOSED TRANSFEREE IS AN INSTITUTIONAL ACCREDITED INVESTOR, THE HOLDER MUST, PRIOR TO SUCH TRANSFER, FURNISH TO THE TRUSTEE AND THE COMPANY SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS EITHER OF THEM MAY
REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. AS USED HEREIN, THE TERMS “OFFSHORE TRANSACTION,”
“UNITED STATES” AND “UNITED STATES PERSON” HAVE THE MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT. THE INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER ANY TRANSFER OF THIS NOTE IN
VIOLATION OF THE FOREGOING RESTRICTIONS.” 
 (B) Notwithstanding the foregoing, any Global Note or Definitive Note issued
pursuant to subparagraphs (b)(4), (c)(2), (c)(3), (d)(2), (d)(3), (e)(2), (e)(3) or (f) of this Section 3.5 (and all Notes issued in exchange therefor or substitution thereof) will not bear the Private Placement Legend. 
 (2) Global Note Legend. Each Global Note will bear a legend in substantially the following form: 
 “THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS
HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 3.5 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE
BUT NOT IN PART PURSUANT TO SECTION 3.5(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 3.9 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR
DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. 
 UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY
NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A

  

 First Supplemental Indenture 
 44 

 
NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET,
NEW YORK, NEW YORK) (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.” 
 (g) Cancellation and/or Adjustment of
Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note
will be returned to or retained and canceled by the Trustee in accordance with Section 3.9 of this Indenture. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who
will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note will be reduced accordingly and an endorsement will be made on such Global
Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest
in another Global Note, such other Global Note will be increased accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase. 
 (h) General Provisions Relating to Transfers and Exchanges. 
 (1) To permit registrations of transfers and exchanges, the Company will execute and the Trustee will authenticate Global Notes and
Definitive Notes upon receipt of a Company Order in accordance with Section 3.3 of this Indenture or at the Security Registrar’s request. 
 (2) No service charge will be made to a Holder of a beneficial interest in a Global Note or to a Holder of a Definitive Note for any registration of transfer or exchange, but the Company may require payment of a sum
sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer taxes or similar governmental charge payable upon exchange or transfer pursuant to Sections 3.4, 9.8, 10.12, 10.15 and
11.6 of this Indenture.  
 (3) The Security Registrar will not be required to register the transfer of or exchange of
any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part. 
 (4)
All Global Notes and Definitive Notes issued upon any registration of transfer or exchange of Global Notes or Definitive Notes will be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this
Indenture, as the Global Notes or Definitive Notes surrendered upon such registration of transfer or exchange. 
 (5) Neither
the Security Registrar nor the Company will be required: 
 (A) to issue, to register the transfer of or to exchange any Notes
during a period beginning at the opening of business 15 days before the day of any selection of Notes for redemption under Section 11.2 of this Indenture and ending at the close of business on the day of selection; 
  

 First Supplemental Indenture 
 45 

 (B) to register the transfer of or to exchange any Note selected for redemption in whole
or in part, except the unredeemed portion of any Note being redeemed in part; or 
 (C) to register the transfer of or to
exchange a Note between a record date and the next succeeding interest payment date. 
 (6) Prior to due presentment for the
registration of a transfer of any Note, the Trustee, any Agent and the Company may deem and treat the Person in whose name any Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of, premium, if
any, interest and Liquidated Damages on such Notes and for all other purposes, and none of the Trustee, any Agent or the Company shall be affected by notice to the contrary. 
 (7) The Trustee will authenticate Global Notes and Definitive Notes in accordance with the provisions of Section 3.3 of this
Indenture. 
 (8) All certifications, certificates and Opinions of Counsel required to be submitted to the Security Registrar
pursuant to this Section 3.5 to effect a registration of transfer or exchange may be submitted by facsimile. 
 SECTION 3.04.
Defaults and Remedies. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First
Supplemental Indenture, Sections 5.1 and 5.2 of the Original Indenture are hereby amended and restated in their entirety to read as follows: 
 Section 5.1 Events of Default. 
 (a) Each of the following is an “Event of Default”:

 (i) default for 30 days in the payment when due of interest on, or Liquidated Damages, if any, with respect to, the Notes;

 (ii) default in the payment when due of the principal of, or premium, if any, on the Notes; 
 (iii) failure by the Company to comply with its obligations under Article Eight of this Indenture or to consummate a purchase of Notes
when required pursuant to Section 10.12 or Section 10.15 of this Indenture; 
 (iv) failure by the Company or any of
its Restricted Subsidiaries for 30 days after receipt of a written notice (specifying such failure, requiring it to be remedied and stating that such notice is a “Notice of Default” under this Indenture) from the Trustee or the Holders of
at least 25% in aggregate principal amount of the then Outstanding Notes to comply with Section 10.9 or Section 10.11 of this Indenture or to comply with the provisions described under Section 10.12 or Section 10.15 of this
Indenture to the extent not described in clause (iii) of this Section 5.1(a); 
  

 First Supplemental Indenture 
 46 

 (v) (A) except as addressed in subclause (B) of this clause (v), failure by the
Company or any of its Restricted Subsidiaries for 60 days after receipt of a written notice (specifying such failure, requiring it to be remedied and stating that such notice is a “Notice of Default” under this Indenture) from the Trustee
or the Holders of at least 25% in aggregate principal amount of the then Outstanding Notes to comply with any of the other agreements in this Indenture or the Notes or (B) failure by the Company for 360 days after such notice from the Trustee
or the Holders of at least 25% in aggregate principal amount of the then Outstanding Notes to comply with Section 10.7 of this Indenture; 
 (vi) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Company or any of its Restricted
Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), other than Indebtedness owed to the Company or any of its Restricted Subsidiaries, whether such Indebtedness or Guarantee now exists, or is
created after the Issue Date, which default: 
 (A) is caused by a failure to pay principal of, or interest or premium, if
any, on such Indebtedness prior to the expiration of the grace period provided in such Indebtedness (“Payment Default”); or 
 (B) results in the acceleration of such Indebtedness prior to its maturity; 
 and, in each case, the
principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under which there has been a Payment Default or the maturity of which has been so accelerated, aggregates $20.0 million or more; 

(vii) failure by the Company or any Significant Subsidiary or group of the Company’s Restricted Subsidiaries that, taken together
(as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary to pay final judgments aggregating in excess of $20.0 million (net of any amounts that a
reputable and creditworthy insurance company has acknowledged liability for in writing), which judgments are not paid, discharged or stayed for a period of 60 days; 
 (viii) except as permitted by this Indenture, any Subsidiary Guarantee is held in a judicial proceeding to be unenforceable or invalid or
ceases for any reason to be in full force and effect, or any Guarantor, or any Person acting on behalf of any Guarantor, denies or disaffirms its obligations under its Subsidiary Guarantee; 
 (ix) the Company, any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together (as of the latest audited
consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary, pursuant to or within the meaning of Bankruptcy Law: 
 (A) commences a voluntary case, 
 (B) consents to the entry of an order for relief against it in an involuntary case, 
  

 First Supplemental Indenture 
 47 

 (C) makes a general assignment for the benefit of its creditors, or 
 (D) generally is not paying its debts as they become due; and 
 (x) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that: 
 (A) is for relief against the Company, any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together (as of the
latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary, in an involuntary case; or 
 (B) appoints a custodian of the Company, any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together (as of
the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary, or for all or substantially all of the property of the Company, any Significant Subsidiary or any group
of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary; or 
 (C) orders the liquidation of the Company, any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together (as of
the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary; 
 and the order or decree remains unstayed and in effect for 60 consecutive days. 
 (b) The
Company shall, so long as any of the Notes are Outstanding, deliver to the Trustee, within five Business Days after any Officer becomes aware of any Default or Event of Default, an Officers’ Certificate specifying such Default or Event of
Default and what action the Company is taking or proposes to take with respect thereto. 
 Section 5.2 Acceleration of Maturity;
Rescission and Annulment; Interest Rate Increase. 
 (a) In the case of an Event of Default specified in clause
(ix) or clause (x) of Section 5.1(a) of this Indenture, all then Outstanding Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the
Holders of at least 25% in aggregate principal amount of the then Outstanding Notes may declare all of the Notes to be due and payable immediately by notice in writing to the Company and, in case of a notice by Holders, also to the Trustee
specifying the respective Event of Default and that it is a notice of acceleration. Upon any such declaration, the Notes shall become due and payable immediately. 
 (b) At any time after such a declaration of acceleration with respect to the Notes has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this Article Five provided, the Holders of a majority in principal amount of the Outstanding Notes, by written notice to the Company and the Trustee, may rescind and annul
such declaration and its consequences if: 
 (i) the Company or one or more of the Guarantors has paid or deposited with the
Trustee a sum sufficient to pay: 
 (A) all overdue interest on all Notes, 
  

 First Supplemental Indenture 
 48 

 (B) the principal of (and premium, if any, on) any Notes which have become due otherwise
than by such declaration of acceleration and any interest thereon at the rate or rates prescribed therefor in such Notes, 
 (C) to the extent that payment of such interest is lawful, interest upon overdue interest at the rate or rates prescribed therefor in such Notes, and 
 (D) all sums paid or advanced by the Trustee hereunder and the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel; and 
 (ii) all Events of Default with respect to the Notes, other than the non-payment of
the principal of the Notes which have become due solely by such declaration of acceleration, have been cured or waived as provided in Section 5.13 of this Indenture. 
 (iii) No such rescission shall affect any subsequent default or impair any right consequent thereon. 
 (c) Notwithstanding the foregoing Section 5.2(b), if an Event of Default specified in clause (vi) of Section 5.1(a) above
shall have occurred and be continuing, such Event of Default and any consequential acceleration shall be automatically rescinded if (i) the Indebtedness that is the subject of such Event of Default has been repaid, or (ii) if the default
relating to such Indebtedness is waived or cured and if such Indebtedness has been accelerated, then the holders thereof have rescinded their declaration of acceleration in respect of such Indebtedness. 
 (d) Upon any failure by the Company for 60 days to comply with Section 10.7 of this Indenture, the interest rate on the Notes will
increase by 0.50% per annum and remain at such increased rate thereafter, but only for as long as there is a continuing Default under such Section 10.7, and upon resumption of compliance by the Company with such Section 10.7, the
interest rate will be reset as if the interest rate had never been increased pursuant to this Section 5.2(d). 
 SECTION 3.05.
Notice of Defaults. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental
Indenture, Section 6.2 of the Original Indenture is hereby amended and restated in its entirety to read as follows: 
 Section 6.2
Notice of Defaults. 
 Within 90 days after the occurrence of any Default hereunder with respect to the Notes, the
Trustee shall transmit by mail to all Holders of Notes, as their names and addresses appear in the Security Register, notice of such Default hereunder known to the Trustee, unless such Default shall have been cured or waived; provided,
however, that, except in the case of a Default in the payment of the principal of or any premium or interest on or Liquidated Damages, if any, with respect to any Note, the Trustee may withhold from Holders of Notes notice of any continuing
Default or Event of Default if the Trustee in good faith determines that the withholding of such 

  

 First Supplemental Indenture 
 49 

 
notice is in the interest of the Holders of Notes; and, provided, further, that (i) in the case of any Default of the character specified
in Section 5.1(a)(iv), no such notice to Holders shall be given until at least 30 days after the occurrence thereof, (ii) in the case of any Default of the character specified in Section 5.1(a)(v)(A), no such notice to Holders shall
be given until at least 60 days after the occurrence thereof and (iii) in the case of any Default of the character specified in Section 5.1(a)(v)(B), no such notice to Holders shall be given until at least 360 days after the occurrence
thereof. 
 SECTION 3.06. Compensation and Reimbursement. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, the third paragraph of Section 6.7 of the
Original Indenture is hereby amended and restated in its entirety to read as follows: 
 Without limiting any rights available
to the Trustee under applicable law, when the Trustee incurs expenses or renders services in connection with an Event of Default specified in Section 5.1(a)(ix) or Section 5.1(a)(x), the expenses (including the reasonable charges and
expenses of its counsel) and the compensation for the services of the Trustee are intended to constitute expenses of administration under any applicable Bankruptcy Law. 
 SECTION 3.07. Merger, Consolidation or Sale of Substantially All Assets. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, Article Eight of the Original Indenture is hereby amended and restated in its entirety to read as follows: 
 ARTICLE EIGHT 
 MERGER,
CONSOLIDATION OR SALE OF SUBSTANTIALLY ALL ASSETS 
 Section 8.1 Company May Consolidate, Etc., Only on Certain Terms.

 (a) The Company will not (1) consolidate or merge with or into another Person (regardless of whether the Company is
the surviving corporation), convert into another form of entity or continue in another jurisdiction; or (2) directly or indirectly, sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or
assets, in one or more related transactions, to another Person, unless: 
 (i) either: (A) the Company is the surviving
corporation; or (B) the Person formed by or surviving any such consolidation or merger or resulting from such conversion (if other than the Company) or to which such sale, assignment, transfer, conveyance or other disposition has been made is a
corporation, limited liability company or limited partnership organized or existing under the laws of the United States, any state of the United States or the District of Columbia; 
 (ii) the Person formed by or surviving any such conversion, consolidation or merger (if other than the Company) or the Person to which
such sale, assignment, transfer, conveyance or other disposition has been made assumes all the obligations of the Company under the Notes and this Indenture (and the Registration Rights Agreement, if any obligations thereunder remain unsatisfied)
pursuant to agreements reasonably satisfactory to the Trustee; provided that, unless such Person is a corporation, a corporate co-issuer of the Notes will be added to this Indenture by agreements reasonably satisfactory to the Trustee;

  

 First Supplemental Indenture 
 50 

 (iii) immediately after such transaction or transactions, no Default or Event of Default
exists; 
 (iv) the Company or the Person formed by or surviving any such consolidation or merger (if other than the Company),
or to which such sale, assignment, transfer, conveyance or other disposition has been made: 
 (A) would, on the date of such
transaction after giving pro forma effect thereto and any related financing transactions as if the same had occurred at the beginning of the applicable four-quarter period, be permitted to incur at least $1.00 of additional Indebtedness pursuant to
the Fixed Charge Coverage Ratio test set forth in Section 10.11(a) of this Indenture; or 
 (B) would, on the date of
such transaction after giving pro forma effect thereto and any related financing transactions as if the same had occurred at the beginning of the applicable four-quarter period, have a Fixed Charge Coverage Ratio that is not less than the Fixed
Charged Coverage Ratio of the Company and its Restricted Subsidiaries immediately prior to such transaction; and 
 (v) the
Company has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, merger, conveyance, sale, transfer or lease and such supplemental indenture, if any, comply with this Article Eight
and that all conditions precedent herein provided for relating to such transaction have been complied with. 
 (b) For
purposes of this Section 8.1, the sale, lease, conveyance, assignment, transfer, or other disposition of all or substantially all of the properties and assets of one or more Subsidiaries of the Company, which properties and assets, if held by
the Company instead of such Subsidiaries, would constitute all or substantially all of the properties and assets of the Company on a consolidated basis, shall be deemed to be the transfer of all or substantially all of the assets of the Company.

 (c) Notwithstanding the restrictions described in the foregoing clause (a)(iv), any Restricted Subsidiary may consolidate
with, merge into or transfer all or part of its properties and assets to the Company, the Company may merge into a Restricted Subsidiary for the purpose of reincorporating the Company in another jurisdiction, and any Restricted Subsidiary may
consolidate with, merge into or transfer all or part of its properties and assets to another Restricted Subsidiary. 
 Section 8.2
Successor Substituted. 
 Upon any consolidation or merger, or any sale, assignment, transfer, lease, conveyance or
other disposition of all or substantially all of the properties or assets of the Company in a transaction that is subject to, and that complies with the provisions of, Section 8.1 of this Indenture, the successor Person formed by such
consolidation or into or with which the Company is merged or to which such sale, assignment, transfer, lease, conveyance or other disposition is made shall succeed to, and be substituted for the Company (so that from and after the date of such

  

 First Supplemental Indenture 
 51 

 
consolidation, merger, sale, assignment, transfer, lease, conveyance or other disposition, the provisions of this Indenture referring to the
“Company” shall refer instead to the successor Person and not to the Company), and may exercise every right and power of the Company under this Indenture with the same effect as if such successor Person had been named as the Company
herein; provided, however, that the predecessor Company shall not be relieved from the obligation to pay the principal of and interest on the Notes except in the case of a sale of all of the Company’s assets in a transaction that
is subject to, and that complies with the provisions of, Section 8.1. 
 SECTION 3.08. Redemption of Notes.

 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, Sections 11.3 and 11.4 of the
Original Indenture are hereby amended and restated in their entirety to read as follows: 
 Section 11.3 Selection by Trustee of
Securities to be Redeemed. 
 (a) If less than all of the Notes are to be redeemed at any time, the Trustee will select
the Notes to be redeemed among the Holders of the Notes on a pro rata basis unless otherwise required by law or applicable securities exchange requirements. 
 (b) The Trustee shall promptly notify the Company in writing of the Notes selected for redemption and, in the case of any Note selected
for partial redemption, the principal amount at maturity thereof to be redeemed. No Notes in amounts of $2,000 or less shall be redeemed in part. Notes and portions of Notes selected shall be in amounts of $2,000 and integral multiples of $1,000 in
excess thereof; except that if all of the Notes of a Holder are to be redeemed, the entire Outstanding amount of Notes held by such Holder, even if less than $2,000 and/or a non-multiple of $1,000, shall be redeemed. Except as provided in the
preceding sentence, provisions of this Indenture that apply to Notes called for redemption also apply to portions of Notes called for redemption. 
 (c) For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Notes shall relate, in the case of any Notes redeemed or to be redeemed only in part, to the
portion of the principal amount of such Notes which has been or is to be redeemed. 
 Section 11.4 Notice of Redemption.

 (a) Subject to Section 11.6, at least 30 days but not more than 60 days before a Redemption Date, the Company shall
mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its registered address; provided, however, that (notwithstanding the foregoing) notices of redemption may be
mailed more than 60 days prior to a Redemption Date if such notice is issued in connection with a Legal Defeasance or Covenant Defeasance of the Notes or the satisfaction and discharge of this Indenture. 
 The notice shall identify the Notes to be redeemed and shall state: 
 (i) the Redemption Date; 
 (ii) the Redemption Price; 
  

 First Supplemental Indenture 
 52 

 (iii) if any Note is being redeemed in part, the portion of the principal amount of such
Note to be redeemed and that, after the Redemption Date upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion of the original Note shall be issued in the name of the Holder thereof upon cancellation of
the original Note; 
 (iv) the name and address of the Paying Agent; 
 (v) that Notes called for redemption must be surrendered to the Paying Agent to collect the Redemption Price and become due on the date
fixed for redemption; 
 (vi) that, unless the Company defaults in making such redemption payment, interest, if any, on Notes
called for redemption ceases to accrue on and after the Redemption Date; 
 (vii) the paragraph of the Notes and/or Section of
this Indenture pursuant to which the Notes called for redemption are being redeemed; 
 (viii) that no representation is made
as to the correctness or accuracy of the CUSIP number, if any, listed in such notice or printed on the Notes; and 
 (ix) any
conditions that must be satisfied prior to the Company becoming obligated to consummate such redemption. 
 (b) At the
Company’s request, the Trustee shall give the notice of redemption in the Company’s name and at the Company’s expense; provided, however, that the Company shall have delivered to the Trustee, at least 45 days prior to
the Redemption Date (or such shorter period of time as may be acceptable to the Trustee), an Officers’ Certificate requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in the
preceding paragraph. 
 SECTION 3.09. Redemption Upon Equity Offering 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, the last sentence of Section 11.6 of the
Original Indenture is hereby amended by adding the following paragraph as the last paragraph of such Section: 
 Notwithstanding the preceding provisions of this Section 11.6, notice of any redemption upon an Equity Offering may be given prior to the completion of the related Equity Offering, and any such redemption or notice may at the
Company’s discretion, be subject to one or more conditions precedent, including, but not limited to completion of the related Equity Offering. 
 SECTION 3.10. Covenant Defeasance. 
 Subject to the limitations set forth in the preamble to
ARTICLE 3 of this First Supplemental Indenture, the last sentence of Section 13.3 of the Original Indenture is hereby amended and restated in its entirety to read as follows: 
 In addition, upon the Company’s exercise under Section 13.1 hereof of the option applicable to this Section 13.3, subject
to the satisfaction of the conditions set forth in Section 13.4 hereof, the 

  

 First Supplemental Indenture 
 53 

 
following will no longer constitute an Event of Default: (a) clauses (iii), (iv), (v), (vi) and (vii) of Section 5.1(a) of this
Indenture, (b) clause (ix) (but only with respect to Subsidiaries of the Company) of Section 5.1(a) of this Indenture and (c) clause (x) (but only with respect to Subsidiaries of the Company) of Section 5.1(a) of this
Indenture. 
 SECTION 3.11. Subsidiary Guarantees of the Notes. 
 Subject to the limitations set forth in the preamble to ARTICLE 3 of this First Supplemental Indenture, Article Fourteen of the Original Indenture is
hereby amended by adding the following Sections 14.4 and 14.5 thereto: 
 Section 14.4 Guarantors May Consolidate, etc., on Certain
Terms. 
 Except as otherwise provided in Section 14.5 of this Indenture, a Guarantor may not sell or otherwise
dispose of all or substantially all of its assets to, or consolidate with or merge with or into (regardless of whether such Guarantor is the surviving Person) another Person, other than the Company or another Guarantor, unless: 
 (a) immediately after giving effect to such transaction, no Default or Event of Default exists; and 
 (b) either: 
 (i)(A) such Guarantor is the surviving Person or (B) subject to Section 14.5 hereof, the Person acquiring the property in any such sale or disposition or the Person formed by or surviving any such consolidation or merger (if other
than such Guarantor) assumes all the obligations of such Guarantor under this Indenture (including its Subsidiary Guarantee), on the terms set forth herein, pursuant to agreements reasonably satisfactory to the Trustee; or 
 (ii) the Net Proceeds of such sale or other disposition are applied in accordance with the applicable provisions of this Indenture,
including without limitation Section 10.12. 
 In case of any such consolidation, merger, sale or conveyance and upon the
assumption by the successor Person, by supplemental indenture, executed and delivered to the Trustee and satisfactory in form to the Trustee, of the Subsidiary Guarantee of such Guarantor and the due and punctual performance of all of the covenants
and conditions of this Indenture to be performed by the Guarantor, such successor Person will succeed to and be substituted for the Guarantor with the same effect as if it had been named herein as a Guarantor. Such successor Person thereupon may
cause to be signed any or all of the Subsidiary Guarantee notations to be endorsed upon all of the Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee. All the Subsidiary Guarantees so
issued will in all respects have the same legal rank and benefit under this Indenture as the Subsidiary Guarantees theretofore and thereafter issued in accordance with the terms of this Indenture as though all of such Subsidiary Guarantees had been
issued at the date of the execution hereof. 
 Except as set forth in Articles Eight and Ten of this Indenture, and
notwithstanding clauses (i) and (ii) above, nothing contained in this Indenture or in any of the Notes will prevent any consolidation or merger of a Guarantor with or into the Company or another Guarantor, or will prevent any sale or
conveyance of the property of a Guarantor as an entirety or substantially as an entirety to the Company or another Guarantor. 
  

 First Supplemental Indenture 
 54 

 Section 14.5 Releases. 
 (a) In the event of any sale or other disposition of all or substantially all of the assets of any Guarantor, by way of merger,
consolidation or otherwise, or a sale or other disposition of all of the Capital Stock of any Guarantor, in each case to a Person that is not (either before or after giving effect to such transactions) the Company or a Restricted Subsidiary, then
such Guarantor (in the event of a sale or other disposition, by way of merger, consolidation or otherwise, of all of the Capital Stock of such Guarantor) or the corporation acquiring the property (in the event of a sale or other disposition of all
or substantially all of the assets of such Guarantor) will be released and relieved of any obligations under its Subsidiary Guarantee, provided that the Net Proceeds of such sale or other disposition does not violate the applicable provisions
of this Indenture, including without limitation Section 10.12 of this Indenture. Upon delivery by the Company to the Trustee of an Officers’ Certificate and an Opinion of Counsel to the effect that such sale or other disposition made by
the Company does not violate the provisions of this Indenture, including without limitation Section 10.12 of this Indenture, the Trustee will execute any documents reasonably required in order to evidence the release of any Guarantor from its
obligations under its Subsidiary Guarantee. 
 (b) In addition, each Guarantor will be released and relieved of any
obligations under its Subsidiary Guarantee: 
 (i) upon designation of such Guarantor as an Unrestricted Subsidiary in
accordance with the terms of this Indenture; 
 (ii) upon Legal Defeasance in accordance with Article Thirteen of this
Indenture or satisfaction and discharge of this Indenture in accordance with Article Four of this Indenture; 
 (iii) upon the
liquidation or dissolution of such Guarantor, provided that no Default or Event of Default occurs as a result thereof or shall have occurred and is continuing; or 
 (iv) at such time as such Guarantor is no longer required to be a Guarantor pursuant to Section 10.17 of this Indenture. 

(c) Any Guarantor not released from its obligations under its Subsidiary Guarantee as provided in this Section 14.5 will remain
liable for the full amount of principal of and interest and premium and Liquidated Damages, if any, on the Notes and for the other obligations of any Guarantor under this Indenture as provided in this Article Fourteen. 
 ARTICLE 4 
 ADDITIONAL
COVENANTS 
 With respect to the Notes, Article Ten of the Original Indenture is hereby amended as set forth below in this
ARTICLE 4; provided, however, that each such amendment shall apply only to the Notes and not to any other series of Securities issued under the Indenture. 
  

 First Supplemental Indenture 
 55 

 SECTION 4.01. Reports. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
amended by adding the following Section 10.7 thereto: 
 Section 10.7 Reports. 
 (a) Regardless of whether required by the rules and regulations of the SEC, so long as any Notes are Outstanding, the Company will file
with the SEC for public availability, within the time periods specified in the SEC’s rules and regulations (unless the SEC will not accept such a filing, in which case the Company will furnish to the Holders of Notes or cause the Trustee to
furnish to the Holders of Notes, within the time periods specified in the SEC’s rules and regulations, and will post on the Company’s website): 
 (i) all quarterly and annual reports that would be required to be filed with the SEC on Forms 10-Q and 10-K under the Exchange Act if the Company were required to file such reports; and 
 (ii) all current reports that would be required to be filed with the SEC on Form 8-K under the Exchange Act if the Company were required
to file such reports. 
 (b) All such reports will be prepared in all material respects in accordance with all of the rules
and regulations applicable to such reports. Each annual report on Form 10-K will include a report on the Company’s consolidated financial statements by the Company’s certified independent accountants. 
 (c) If, at any time, the Company is no longer subject to the periodic reporting requirements of the Exchange Act for any reason, the
Company will nevertheless continue filing the reports specified in the preceding paragraphs of this Section 10.7 with the SEC within the time periods specified above unless the SEC will not accept such a filing. The Company will not take any
action for the purpose of causing the SEC not to accept any such filings. If, notwithstanding the foregoing, the SEC will not accept the Company’s filings for any reason, the Company will post the reports referred to in the preceding paragraphs
on its website within the time periods that would apply if the Company were required to file those reports with the SEC. 
 (d) If the Company has designated any of its Subsidiaries as Unrestricted Subsidiaries, then, the quarterly and annual financial information required by the preceding paragraphs of this Section 10.7 will include a reasonably detailed
presentation, either on the face of the financial statements or in the footnotes thereto, and in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of the financial condition and results of
operations of the Company and its Restricted Subsidiaries separate from the financial condition and results of operations of the Unrestricted Subsidiaries. 
 (e) In addition, the Company agrees that, for so long as any Notes remain Outstanding, if at any time it is not required to file with the SEC the reports required by the preceding paragraphs of this Section 10.7,
it will furnish to the Holders of Notes and to securities analysts and prospective investors, upon their request, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act. 
  

 First Supplemental Indenture 
 56 

 SECTION 4.02. Taxes. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.8 thereto: 
 Section 10.8 Taxes. 
 The Company shall pay, and shall cause each of its Subsidiaries to pay, prior to delinquency, any taxes, assessments, and governmental
levies except such as are contested in good faith and by appropriate proceedings or where the failure to effect such payment is not adverse in any material respect to the Holders of the Notes. 
 SECTION 4.03. Restricted Payments. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby further amended by adding the following Section 10.9
thereto: 
 Section 10.9 Restricted Payments. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly: 
 (1) declare or pay any dividend or make any other payment or distribution on account of the Company’s or any of its Restricted
Subsidiaries’ Equity Interests (including, without limitation, any payment in connection with any merger or consolidation involving the Company or any of its Restricted Subsidiaries) or to the direct or indirect holders of the Company’s or
any of its Restricted Subsidiaries’ Equity Interests in their capacity as such (other than dividends or distributions payable in Equity Interests (other than Disqualified Stock) of the Company and other than dividends or distributions payable
to the Company or any Restricted Subsidiary); 
 (2) purchase, redeem or otherwise acquire or retire for value (including,
without limitation, any such purchase, redemption, acquisition or retirement made in connection with any merger or consolidation involving the Company) any Equity Interests of the Company or any direct or indirect parent company of the Company;

 (3) make any payment on or with respect to, or purchase, redeem, defease or otherwise acquire or retire for value any
Subordinated Debt, except a payment of interest or principal at the Stated Maturity thereof (excluding (a) any intercompany Indebtedness between or among the Company and any of its Restricted Subsidiaries or (b) the purchase, repurchase or
other acquisition of Subordinated Debt purchased in anticipation of satisfying a sinking fund obligation, principal installment or final maturity, in each case due within one year of the date of such purchase, repurchase or other acquisition); or

 (4) make any Restricted Investment 
 (all such payments and other actions set forth in clauses (1) through (4) above being collectively referred to as “Restricted Payments”), unless, at the time of and after giving effect to such
Restricted Payment: 
 (i) no Default or Event of Default has occurred and is continuing or would occur as a consequence of
such Restricted Payment; 
  

 First Supplemental Indenture 
 57 

 (ii) the Company would, at the time of such Restricted Payment and after giving pro forma
effect thereto as if such Restricted Payment had been made at the beginning of the applicable four-quarter period, have been permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in
Section 10.11(a) of this Indenture; and 
 (iii) such Restricted Payment, together with the aggregate amount of all other
Restricted Payments made by the Company and its Restricted Subsidiaries since the Issue Date (excluding Restricted Payments permitted by clauses (ii), (iii), (iv), (v), (vi), (vii), (viii), (ix), (xii) and (xiv) of Section 10.9(b) of
this Indenture), is equal to or less than the sum, without duplication, of: 
 (A) 50% of the Consolidated Net Income of the
Company for the period (taken as one accounting period) from the beginning of the first fiscal quarter commencing prior to the Issue Date to the end of the Company’s most recently ended fiscal quarter for which internal financial statements are
available at the time of such Restricted Payment (or, if such Consolidated Net Income for such period is a deficit, less 100% of such deficit); plus 
 (B) 100% of (1)(a) the aggregate net cash proceeds and (b) the Fair Market Value of (x) marketable securities (other than
marketable securities of the Company or an Affiliate of the Company), (y) Capital Stock of a Person (other than the Company or an Affiliate of the Company) engaged primarily in any Related Business and (z) other assets used or useful in
any Related Business, in each case received by the Company since the Issue Date as a contribution to its common equity capital or from the issue or sale of Equity Interests of the Company (other than Disqualified Stock) or from the issue or sale of
convertible or exchangeable Disqualified Stock or convertible or exchangeable debt securities of the Company that have been converted into or exchanged for such Equity Interests (other than Equity Interests (or Disqualified Stock or debt securities)
sold to a Subsidiary of the Company), (2) with respect to Indebtedness that is incurred on or after the Issue Date, the amount by which such Indebtedness of the Company or any of its Restricted Subsidiaries is reduced on the Company’s
consolidated balance sheet upon the conversion or exchange after the Issue Date of any such Indebtedness into or for Equity Interests of the Company (other than Disqualified Stock), and (3) the aggregate net cash proceeds, if any, received by
the Company or any of its Restricted Subsidiaries upon any conversion or exchange described in clause (1) or (2) above; plus 
 (C) with respect to Restricted Investments made by the Company and its Restricted Subsidiaries after the Issue Date, an amount equal to the sum, without duplication, of (1) the net reduction in such Restricted
Investments in any Person resulting from (i) repayments of loans or advances, or other transfers of assets, in each case to the Company or any Restricted Subsidiary, (ii) other repurchases, repayments or redemptions of such Restricted
Investments, (iii) the sale of any such Restricted Investment to a purchaser other than the Company or a Subsidiary of the Company or (iv) the release of any Guarantee (except to the extent any amounts are paid under such Guarantee) that
constituted a Restricted 

  

 First Supplemental Indenture 
 58 

 
Investment plus (2) with respect to any Unrestricted Subsidiary designated as such after the Issue Date is redesignated as a Restricted Subsidiary after
the Issue Date, the Fair Market Value of the Company’s Investment in such Subsidiary held by the Company or any of its Restricted Subsidiaries at the time of such redesignation; plus 
 (D) 100% of any dividends received by the Company or a Restricted Subsidiary after the Issue Date from an Unrestricted Subsidiary, to the
extent such dividends were not otherwise included in the Consolidated Net Income of the Company for such period. 
 (b)
Section 10.9(a) of this Indenture will not prohibit: 
 (i) the payment of any dividend or the consummation of any
irrevocable redemption within 60 days after the date of declaration of the dividend or giving of the redemption notice, as the case may be, if at the date of declaration or notice, the dividend or redemption payment would have complied with the
provisions of this Indenture; 
 (ii) the making of any Restricted Payment in exchange for, or out of the net cash proceeds
from the substantially concurrent sale (other than to a Subsidiary of the Company) of, Equity Interests of the Company (other than Disqualified Stock and other than Equity Interests issued or sold to an employee stock ownership plan, option plan or
similar trust to the extent such sale to an employee stock ownership plan, option plan or similar trust is financed by loans from or guaranteed by the Company or any of its Restricted Subsidiaries unless such loans have been repaid with cash on or
prior to the date of determination) or from the substantially concurrent contribution of common equity capital to the Company; provided that the amount of any such net cash proceeds that are utilized for any such Restricted Payment will be
excluded from clause (iii)(B) of Section 10.9(a) and clause (vii) of this Section 10.9(b); 
 (iii) the
repurchase, redemption, defeasance or other acquisition or retirement for value of Subordinated Debt (including the payment of any required premium and any fees and expenses incurred in connection with such repurchase, redemption, defeasance or
other acquisition or retirement) with the net cash proceeds from a substantially concurrent incurrence of Permitted Refinancing Indebtedness; 
 (iv) the defeasance, repurchase, redemption or other acquisition or retirement for value of any Equity Interests of the Company or any Restricted Subsidiary held by any of the Company’s (or any of its Restricted
Subsidiaries’) current or former directors or employees in connection with the exercise or vesting of any equity compensation (including, without limitation, stock options, restricted stock and phantom stock) in order to satisfy the
Company’s or such Restricted Subsidiary’s tax withholding obligation with respect to such exercise or vesting; 
 (v) repurchases of Capital Stock deemed to occur upon the exercise of stock options if such Capital Stock represents a portion of the exercise price thereof; 
 (vi) payments to fund the purchase, redemption or other acquisition for value by the Company of fractional Equity Interests arising out of
stock dividends, splits or combinations, business combinations or other transactions permitted by this Indenture; 
  

 First Supplemental Indenture 
 59 

 (vii) as long as no Default has occurred and is continuing or would be caused thereby,
the defeasance, repurchase, redemption or other acquisition or retirement for value of any Equity Interests of Parent, the Company or any Restricted Subsidiary held by any of Parent’s, the Company’s or any of the Company’s Restricted
Subsidiaries’ current or former directors or employees; provided that the aggregate price paid for all such repurchased, redeemed, acquired or retired Equity Interests may not exceed the sum of (A) $20.0 million, plus
(B) the aggregate amount of cash proceeds received by the Company from the sale of the Company’s Equity Interests (other than Disqualified Stock) to any such directors or employees that occurs after the Issue Date; provided that the
amount of such cash proceeds utilized for any such defeasance, repurchase, redemption or other acquisition or retirement will be excluded from clause (iii)(B) of Section 10.9(a) and clause (ii) of this Section 10.9(b) plus
(C) the cash proceeds of key man life insurance policies received by the Company and its Restricted Subsidiaries after the Issue Date; 
 (viii) as long as no Default has occurred and is continuing or would be caused thereby, the declaration and payment of regularly scheduled or accrued dividends to holders of any class or series of Disqualified Stock
of the Company or any Restricted Subsidiary issued on or after the Issue Date in accordance with the Fixed Charge Coverage Ratio test set forth in Section 10.11(a); 
 (ix) the payment of any dividend (or, in the case of any partnership or limited liability company, any similar distribution) by a
Restricted Subsidiary to the holders of Equity Interests (other than Disqualified Stock) of such Restricted Subsidiary; provided that such dividend or similar distribution is paid to all holders of such Equity Interests on a pro rata
basis based their respective holdings of such Equity Interests; 
 (x) the purchase or redemption of any Acquired Subordinated
Indebtedness of the Company or any of its Restricted Subsidiaries, by application of proceeds from borrowings under the revolving portion of the Senior Credit Agreement; provided, in any such case, that the Company is able to incur an
additional $1.00 of Indebtedness pursuant to Section 10.11(a) after giving effect to such purchase or redemption; provided further, that this clause (x) shall not permit the application any proceeds from any other borrowings under
any Credit Facility to effect any such purchase or redemption; 
 (xi) repurchases of Subordinated Debt at a purchase price
not greater than (x) 101% of the principal amount of such Subordinated Debt and accrued and unpaid interest thereon in the event of a Change of Control or (y) 100% of the principal amount of such Subordinated Debt and accrued and unpaid
interest thereon in the event of an Asset Sale in connection with any change of control offer or asset sale offer required by the terms of such Subordinated Debt, but only if: 
 (A) in the case of a Change of Control, the Company has first complied with and fully satisfied its obligations under Section 10.15;
or 
 (B) in the case of an Asset Sale, the Company has complied with and fully satisfied its obligations under
Section 10.12; 
 (xii) Permitted Payments to Parent; 
  

 First Supplemental Indenture 
 60 

 (xiii) payments or distributions to dissenting stockholders pursuant to applicable law in
connection with a merger, consolidation or transfer of all or substantially all of the assets of the Company that complies with Article Eight of this Indenture; and 
 (xiv) other Restricted Payments in an aggregate amount at any time outstanding not to exceed $20.0 million. 
 (c) The amount of all Restricted Payments (other than cash) shall be the Fair Market Value on the date of such Restricted Payment of the
asset(s) or securities proposed to be paid, transferred or issued by the Company or such Restricted Subsidiary, as the case may be, pursuant to such Restricted Payment. 
 (d) The Fair Market Value of any cash Restricted Payment shall be its face amount, and the Fair Market Value of any non-cash Restricted
Payment exceeding $10.0 million shall be determined conclusively by two senior Officers of the Company acting in good faith whose conclusions with respect thereto shall be set forth in an Officers’ Certificate delivered to the Trustee,
provided, however, that if the Fair Market Value of any non-cash Restricted Payment exceeds $25.0 million, such Fair Market Value shall be determined conclusively by the Board of Directors of the Company and set forth in a Board
Resolution, and a certified copy of such Board Resolution shall be delivered to the Trustee. For purposes of determining compliance with this covenant, in the event that a Restricted Payment meets the criteria of more than one of the exceptions
described in clauses (i) through (xiv) of Section 10.9(b) or is entitled to be made pursuant to Section 10.9(a), the Company shall, in its sole discretion, classify such Restricted Payment, or later classify, reclassify or
re-divide all or a portion of such Restricted Payment, in any manner that complies with this Section 10.9. 
 SECTION 4.04.
Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries. 
 Subject to the limitations set forth in
the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby further amended by adding the following Section 10.10 thereto: 
 Section 10.10 Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create or permit to exist or
become effective any consensual encumbrance or restriction on the ability of any Restricted Subsidiary to: 
 (i) pay
dividends or make any other distributions on its Capital Stock to the Company or any of its Restricted Subsidiaries, or with respect to any other interest or participation in, or measured by, its profits, or pay any Indebtedness owed to the Company
or any of its Restricted Subsidiaries; 
 (ii) make loans or advances to the Company or any of its Restricted Subsidiaries; or

 (iii) sell, lease or transfer any of its properties or assets to the Company or any of its Restricted Subsidiaries.

  

 First Supplemental Indenture 
 61 

 (b) However, the preceding restrictions in Section 10.10(a) will not apply to
encumbrances or restrictions existing under, by reason of or with respect to: 
 (i) the Senior Credit Agreement, any Existing
Indebtedness, Capital Stock or any other agreements or instruments, in each case, in effect on the Issue Date and any amendments, restatements, modifications, renewals, extensions, supplements, increases, refundings, replacements or refinancings
thereof; provided that the encumbrances and restrictions in any such amendments, restatements, modifications, renewals, extensions, supplements, increases, refundings, replacements or refinancings are, in the reasonable good faith judgment of
the Chief Executive Officer and the Chief Financial Officer of the Company, no more restrictive, taken as a whole, than those contained in the applicable agreements or instruments as in effect on the Issue Date; 
 (ii) this Indenture, the Notes and the Subsidiary Guarantees; 
 (iii) applicable law, rule, regulation, order, approval, permit or similar restriction; 
 (iv) any instrument governing Indebtedness or Capital Stock of a Person acquired by the Company or any of its Restricted Subsidiaries as
in effect at the time of such acquisition (except to the extent such Indebtedness or Capital Stock was incurred in connection with or in contemplation of such acquisition), which encumbrance or restriction is not applicable to any Person, or the
properties or assets of any Person, other than the Person, or the property or assets of the Person, so acquired and any amendments, restatements, modifications, renewals, extensions, supplements, increases, refundings, replacements or refinancings
thereof, provided, that the encumbrances and restrictions in any such amendments, restatements, modifications, renewals, extensions, supplements, increases, refundings, replacements or refinancings are, in the reasonable good faith judgment
of the Chief Executive Officer and the Chief Financial Officer of the Company, no more restrictive, taken as a whole, than those in effect on the date of the acquisition; provided, further, that, in the case of Indebtedness, such
Indebtedness was permitted by the terms of this Indenture to be incurred; 
 (v) customary non-assignment provisions in
contracts, leases and licenses (including, without limitation, licenses of intellectual property) entered into in the ordinary course of business; 
 (vi) any agreement for the sale or other disposition of the Equity Interests in, or all or substantially all of the assets of, a Restricted Subsidiary, that restricts distributions by the applicable Restricted
Subsidiary pending the sale or other disposition; 
 (vii) Permitted Refinancing Indebtedness; provided that the
restrictions contained in the agreements governing such Permitted Refinancing Indebtedness are not materially more restrictive, taken as a whole, than those contained in the agreements governing the Indebtedness being refinanced; 
 (viii) Liens permitted to be incurred under the provisions of Section 10.14 that limit the right of the debtor to dispose of the
assets subject to such Liens; 
 (ix) the issuance of preferred stock by a Restricted Subsidiary or the payment of dividends
thereon in accordance with the terms thereof; provided that issuance of such 

  

 First Supplemental Indenture 
 62 

 
preferred stock is permitted pursuant to Section 10.11 and the terms of such preferred stock do not expressly restrict the ability of a Restricted
Subsidiary to pay dividends or make any other distributions on its Capital Stock (other than requirements to pay dividends or liquidation preferences on such preferred stock prior to paying any dividends or making any other distributions on such
other Capital Stock); 
 (x) other Indebtedness of the Company or any of its Restricted Subsidiaries permitted to be incurred
pursuant to an agreement entered into subsequent to the Issue Date in accordance with Section 10.11; provided that the provisions relating to such encumbrance or restriction contained in such Indebtedness are not materially less
favorable to the Company and its Restricted Subsidiaries, taken as a whole, as determined by the Company in good faith, than the provisions contained in the Senior Credit Agreement as in effect on the Issue Date; 
 (xi) Indebtedness incurred or Capital Stock issued by any Restricted Subsidiary, provided that the restrictions contained in the
agreements or instruments governing such Indebtedness or Capital Stock (a) either (i) apply only in the event of a payment default or a default with respect to a financial covenant in such agreement or instrument or (ii) will not
materially affect the Company’s ability to pay all principal, interest and premium and Liquidated Damages, if any, on the Notes, in the reasonable good faith judgment of the Chief Executive Officer and Chief Financial Officer of the Company;
and (b) are not materially more disadvantageous to the Holders of the Notes than is customary in comparable financings (in the reasonable good faith judgment of the Chief Executive Officer and Chief Financial Officer of the Company);

 (xii) customary provisions restricting subletting or assignment of any lease governing a leasehold interest; 
 (xiii) Hedging Obligations permitted from time to time under this Indenture; 
 (xiv) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary course of
business; and 
 (xv) with respect only to encumbrances or restrictions of the type referred to in clause (iii) of
Section 10.10(a): 
 (A) customary nonassignment provisions (including provisions forbidding subletting) in leases
governing leasehold interests or Farm-In Agreements or Farm-Out Agreements relating to leasehold interests in Oil and Gas Properties to the extent such provisions restrict the transfer of the lease, the property leased thereunder or the other
interests therein; 
 (B) provisions limiting the disposition or distribution of assets or property in, or transfer of
Capital Stock of, joint venture agreements, asset sale agreements, sale-leaseback agreements, stock sale agreements and other similar agreements entered into (1) in the ordinary course of business, consistent with past practice or (2) with
the approval of the Company’s Board of Directors, which limitations are applicable only to the assets, property or Capital Stock that are the subject of such agreements; and 
  

 First Supplemental Indenture 
 63 

 (C) Capital Lease Obligations, security agreements, mortgages, purchase money agreements
or similar instruments to the extent such encumbrance or restriction restricts the transfer of the property (including Capital Stock) subject to such Capital Lease Obligations, security agreements, mortgages, purchase money agreements or similar
instruments. 
 SECTION 4.05. Incurrence of Indebtedness and Issuance of Preferred Stock. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.11 thereto: 
 Section 10.11 Incurrence of Indebtedness and Issuance of
Preferred Stock. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or
indirectly, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise, with respect to (collectively, “incur;” with “incurrence” having a correlative meaning) any
Indebtedness (including Acquired Debt), and the Company will not issue any Disqualified Stock and will not permit any of its Restricted Subsidiaries to issue any shares of preferred stock; provided, however, that the Company may incur
Indebtedness (including Acquired Debt) and issue Disqualified Stock, and Restricted Subsidiaries may incur Indebtedness (including Acquired Debt) and issue preferred stock, if (a) the Fixed Charge Coverage Ratio for the Company’s most
recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date on which such additional Indebtedness is incurred or such Disqualified Stock or preferred stock is issued, as the case may
be, would have been at least 2.0 to 1.0 and (b) to the extent such Indebtedness (including Acquired Debt) constitutes Senior Debt, (i) on any date of determination prior to February 15, 2013, the Senior Net Leverage Ratio is no
greater than 4.0 to 1.0 and (ii) on any date of determination on or after February 15, 2013, the Senior Net Leverage Ratio is no greater than 3.50 to 1.0, in each case under clause (a) or (b) above, determined on a pro forma
basis (including a pro forma application of the net proceeds therefrom), as if the additional Indebtedness had been incurred or the Disqualified Stock or preferred stock had been issued, as the case may be, at the beginning of such four-quarter
period. 
 (b) Notwithstanding the foregoing, Section 10.11(a) will not prohibit the incurrence of any of the following
(the items of Indebtedness described below in this Section 10.11(b) being referred to collectively as “Permitted Debt”): 
 (i) the incurrence by the Company and any Restricted Subsidiary of Indebtedness and letters of credit under Credit Facilities in an aggregate principal amount at any one time outstanding under this clause
(i) (with letters of credit being deemed to have a principal amount equal to the maximum potential liability of the Company and its Restricted Subsidiaries thereunder) not to exceed the greater of (x) $220.0 million and (y) 25% of
Adjusted Consolidated Net Tangible Assets, determined as of the date of the incurrence of such Indebtedness after giving pro forma effect to such incurrence and the application of the proceeds therefrom; 
 (ii) the incurrence by the Company and its Restricted Subsidiaries of Existing Indebtedness; 
  

 First Supplemental Indenture 
 64 

 (iii) the incurrence by the Company of Indebtedness represented by the Notes to be issued
on the Issue Date and the Exchange Notes to be issued pursuant to the Registration Rights Agreement; 
 (iv) the incurrence by
the Company or any of its Restricted Subsidiaries of Indebtedness represented by Capital Lease Obligations, mortgage financings or purchase money obligations, in each case, incurred for the purpose of financing all or any part of the purchase price
or cost of design, construction, installation, improvement, deployment, refurbishment or modification of property, plant or equipment or furniture, fixtures and equipment, in each case, used in the business of the Company or any of its Restricted
Subsidiaries, in an aggregate principal amount at any time outstanding, including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this clause (iv), not
to exceed the greater of (A) $25.0 million and (B) 3.0% of Adjusted Consolidated Net Tangible Assets; 
 (v) the
incurrence by the Company or any of its Restricted Subsidiaries of Permitted Refinancing Indebtedness in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge any Indebtedness (other than
intercompany Indebtedness) or Disqualified Stock of the Company, or Indebtedness (other than intercompany Indebtedness) or preferred stock of a Restricted Subsidiary, in each case that was permitted by this Indenture to be incurred or issued under
Section 10.11(a) or clauses (ii), (iii), (iv), (v), (x), (xvi) or (xvii) of this Section 10.11(b); 
 (vi)
the incurrence by the Company or any of its Restricted Subsidiaries of intercompany Indebtedness between or among the Company and any of its Restricted Subsidiaries; provided, however, that (A) any subsequent issuance or transfer
of Equity Interests that results in any such Indebtedness being held by a Person other than the Company or a Restricted Subsidiary and (B) any sale or other transfer of any such Indebtedness to a Person that is not either the Company or a
Restricted Subsidiary will be deemed, in each case, to constitute an incurrence of such Indebtedness by the Company or such Restricted Subsidiary, as the case may be, that was not permitted by this clause (vi); 
 (vii) the issuance by any of the Company’s Restricted Subsidiaries to the Company or to any of its Restricted Subsidiaries of shares
of preferred stock; provided, however, that: 
 (A) any subsequent issuance or transfer of Equity Interests
that results in any such preferred stock being held by a Person other than the Company or a Restricted Subsidiary; and 
 (B)
any sale or other transfer of any such preferred stock to a Person that is not either the Company or a Restricted Subsidiary, 
 will be
deemed, in each case, to constitute an issuance of such preferred stock by such Restricted Subsidiary that was not permitted by this clause (vii); 
 (viii) the incurrence of obligations of the Company or a Restricted Subsidiary pursuant to Interest Rate and Currency Hedges, in each case entered into in the ordinary course of business for the purpose of limiting
risks that arise in the ordinary course of business of the Company and its Restricted Subsidiaries; 
  

 First Supplemental Indenture 
 65 

 (ix) the guarantee by the Company or any of the Guarantors of Indebtedness of the Company
or a Restricted Subsidiary that was permitted to be incurred by another provision of this covenant; provided that if the Indebtedness being guaranteed is subordinated to or pari passu with the Notes, then the guarantee shall be
subordinated or pari passu, as applicable, to the same extent as the Indebtedness guaranteed; 
 (x) Permitted
Acquisition Indebtedness; 
 (xi) the incurrence by the Company or any Restricted Subsidiary of Indebtedness arising from the
honoring by a bank or other financial institution of a check, draft or similar instrument inadvertently drawn against insufficient funds, so long as such Indebtedness is covered within five Business Days; 
 (xii) Indebtedness consisting of the financing of insurance premiums in customary amounts consistent with the operations and business of
the Company and its Restricted Subsidiaries; 
 (xiii) the incurrence by the Company or any Restricted Subsidiary of
Indebtedness arising from agreements of the Company or any of its Restricted Subsidiaries providing for indemnification, adjustment of purchase price or similar obligations, in each case, incurred or assumed in connection with the disposition of any
business, assets or Capital Stock of a Subsidiary, provided that the maximum aggregate liability in respect of all such Indebtedness shall at no time exceed the gross proceeds actually received by the Company and its Restricted Subsidiaries
in connection with such disposition; 
 (xiv) the incurrence by the Company or any Restricted Subsidiary of Indebtedness
constituting reimbursement obligations with respect to letters of credit issued in the ordinary course of business; provided that, upon the drawing of such letters of credit or the incurrence of such Indebtedness, such obligations are
reimbursed within one year following such drawing or incurrence; 
 (xv) the incurrence by the Company or any of its
Restricted Subsidiaries of Indebtedness in the form of Guarantees of Indebtedness of joint ventures; provided that the aggregate principal amount of the Obligations incurred pursuant to such Guarantees shall not exceed the greater of $25.0
million and 3.0% of Adjusted Consolidated Net Tangible Assets, determined as of the date of each incurrence of such Guarantee after giving pro forma effect to the application of proceeds of the Indebtedness being guaranteed; 
 (xvi) the incurrence by Foreign Subsidiaries of Indebtedness in an aggregate amount at any time outstanding pursuant to this clause (xvi),
including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this clause (xvi), not to exceed 15% of such Foreign Subsidiaries’ Adjusted Consolidated
Net Tangible Assets, determined as of the date of each incurrence, in the applicable foreign currency; and 
 (xvii) the
incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness in an aggregate principal amount (or accreted value, as applicable) that, 

  

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 66 

 
when taken together with all other Indebtedness of the Company and its Restricted Subsidiaries outstanding on the date of such incurrence (other than
Indebtedness permitted by clauses (i) through (xvi) above or Section 10.11(a)) and any Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this
clause (xvii) does not exceed the greater of (x) 2.5% of Adjusted Consolidated Net Tangible Assets determined as of the date of incurrence of such Indebtedness and (y) $20.0 million. 
 (c) The Company will not incur, and will not permit any Guarantor to incur, any Indebtedness (including Permitted Debt) that is
contractually subordinated in right of payment to any other Indebtedness of the Company or such Guarantor unless such Indebtedness is also contractually subordinated in right of payment to the Notes and the applicable Subsidiary Guarantee, on
substantially identical terms; provided, however, that no Indebtedness will be deemed to be contractually subordinated in right of payment to any other Indebtedness of the Company solely by virtue of being unsecured or by virtue of
being secured on a first or junior Lien basis. 
 (d) For purposes of determining compliance with this Section 10.11, in
the event that an item of proposed Indebtedness meets the criteria of more than one of the categories of Permitted Debt described in clauses (i) through (xvii) of Section 10.11(b), or is entitled to be incurred pursuant to
Section 10.11(a), the Company will be permitted to divide and classify such item of Indebtedness on the date of its incurrence, or later divide and reclassify all or a portion of such item of Indebtedness, in any manner that complies with this
Section 10.11. The accrual of interest, the accretion or amortization of original issue discount, the payment of interest on any Indebtedness in the form of additional Indebtedness with the same terms, the reclassification of preferred stock as
Indebtedness due to a change in accounting principles, and the payment of dividends on Disqualified Stock in the form of additional shares of the same class of Disqualified Stock will be deemed not to be an incurrence of Indebtedness or an issuance
of Disqualified Stock for purposes of this covenant; provided, in each such case, that the amount of any such accrual, accretion or payment is included in Fixed Charges of the Company as accrued. 
 (e) For purposes of determining compliance with any U.S. dollar-denominated restriction on the incurrence of Indebtedness and issuance of
preferred stock, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was incurred, in the case of term
Indebtedness, or first committed, in the case of revolving credit Indebtedness; provided that if such Indebtedness is incurred to refinance other Indebtedness denominated in a foreign currency, and such refinancing would cause the applicable
U.S. dollar-denominated restriction to be exceeded if calculated at the relevant currency exchange rate in effect on the date of such refinancing, such U.S. dollar-denominated restriction shall be deemed not to have been exceeded so long as the
principal amount of such refinancing Indebtedness does not exceed the principal amount of such Indebtedness being refinanced. Notwithstanding any other provision of this Section 10.11, the maximum amount of Indebtedness that the Company or any
Restricted Subsidiary may incur pursuant to this Section 10.11 shall not be deemed to be exceeded solely as a result of fluctuations in the exchange rate of currencies. The principal amount of any Permitted Refinancing Indebtedness incurred to
refinance other Indebtedness, if incurred in a different currency from the Indebtedness being refinanced, shall be calculated based on the currency exchange rate applicable to the currencies in which such Permitted Refinancing Indebtedness is
denominated that is in effect on the date of such refinancing. 
  

 First Supplemental Indenture 
 67 

 SECTION 4.06. Asset Sales. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.12 thereto: 
 Section 10.12 Asset Sales. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, consummate an Asset Sale unless: 
 (i) the Company (or the Restricted Subsidiary, as the case may be) receives consideration at least equal to the Fair Market Value of the
assets or Equity Interests issued or sold or otherwise disposed of; and 
 (ii) either (x) at least 75% of the
consideration received in respect of such Asset Sale by the Company or such Restricted Subsidiary is in the form of cash or Cash Equivalents or (y) the Fair Market Value of all forms of consideration other than cash and Cash Equivalents
received for all Asset Sales since the Issue Date does not exceed in the aggregate 10% of the Adjusted Consolidated Net Tangible Assets of the Company at the time each determination is made. For purposes of this provision, each of the following will
be deemed to be cash: 
 (A) any liabilities, as shown on the Company’s most recent consolidated balance sheet, of the
Company or any Restricted Subsidiary (other than contingent liabilities and liabilities that are by their terms subordinated to the Notes or any Subsidiary Guarantee) that are assumed by the transferee of any such assets or Equity Interests pursuant
to (1) a customary novation agreement that releases the Company or such Restricted Subsidiary from further liability therefor or (2) an assignment agreement that includes, in lieu of such a release, the agreement of the transferee or its
parent company to indemnify and hold harmless the Company or such Restricted Subsidiary from and against any loss, liability or other cost in respect of such assumed liability; 
 (B) any securities, notes or other obligations received by the Company or any such Restricted Subsidiary from such transferee that are
converted by the Company or such Restricted Subsidiary into cash within 180 days after the date of the Asset Sale, to the extent of the cash received in that conversion; and 
 (C) any stock or assets of the kind referred to in clause (ii) of Section 10.12(c) below. 
 (b) Notwithstanding the foregoing, the 75% limitation referred to above in Section 10.12(a) shall be deemed satisfied with respect to
any Asset Sale in which the cash or Cash Equivalents portion of the consideration received therefrom, determined in accordance with Section 10.12(a) on an after-tax basis, is equal to or greater than what the after-tax proceeds would have been
had such Asset Sale complied with the aforementioned 75% limitation. 
 (c) Within 365 days after the receipt of any Net
Proceeds from an Asset Sale or, if the Company has entered into a binding commitment or commitments with respect to any of the 

  

 First Supplemental Indenture 
 68 

 
actions described in clauses (ii) or (iii) below, within the later of (x) 360 days after the receipt of any Net Proceeds from an Asset Sale or
(y) 180 days after the entering into of such commitment or commitments, the Company (or the applicable Restricted Subsidiary, as the case may be) may apply such Net Proceeds: 
 (i) to repay Senior Debt; 
 (ii) to invest in Additional Assets; or 
 (iii) to make capital expenditures in respect of a
Related Business of the Company or any of its Restricted Subsidiaries. 
 An amount equal to any Net Proceeds from Asset Sales that are not
applied or invested as provided in clauses (i) through (iii) above will constitute “Excess Proceeds.” 
 (d) Within ten Business Days after the aggregate amount of Excess Proceeds then exceeds $20.0 million, the Company will make an offer (an “Asset Sale Offer”) to all Holders of Notes and all holders of other Indebtedness
that is pari passu with the Notes containing provisions similar to those set forth in this Indenture with respect to offers to purchase or redeem with the proceeds of sales of assets, to purchase the maximum principal amount of Notes and such
other pari passu Indebtedness that may be purchased out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount plus accrued and unpaid interest and Liquidated Damages, if any, to the date
of purchase, and will be payable in cash. If any Excess Proceeds remain after consummation of an Asset Sale Offer, the Company or any Restricted Subsidiary may use those Excess Proceeds for any purpose not otherwise prohibited by this Indenture. If
the aggregate principal amount of Notes and other pari passu Indebtedness tendered into such Asset Sale Offer exceeds the amount of Excess Proceeds, the Company will use the Excess Proceeds to purchase the Notes and such other pari
passu Indebtedness on a pro rata basis. Upon completion of each Asset Sale Offer, the amount of Excess Proceeds will be reset at zero. 
 (e) Notwithstanding the foregoing, the sale, conveyance or other disposition of all or substantially all of the assets of the Company and its Restricted Subsidiaries, taken as a whole, will be governed by Sections 8.1
and/or 10.15 of this Indenture, as applicable, and not by this Section 10.12. 
 (f) The Company will comply with the
requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with each repurchase of Notes pursuant to an Asset Sale Offer. To the
extent that the provisions of any securities laws or regulations conflict with the Asset Sales provisions of this Indenture, or compliance with the Asset Sales provisions of this Indenture would constitute a violation of any such laws or
regulations, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the Asset Sales provisions of this Indenture by virtue of such compliance. 
 (g) In the event that, pursuant to this Section 10.12, the Company is required to commence an Asset Sale Offer, it will follow the
procedures specified below: 
 (i) The Asset Sale Offer shall be made to all Holders and all holders of other Indebtedness
that is pari passu with the Notes containing provisions similar to those set forth in the Indenture with respect to offers to purchase or redeem with the proceeds of 

  

 First Supplemental Indenture 
 69 

 
sales of assets. The Asset Sale Offer will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business
Days, except to the extent that a longer period is required by applicable law (the “Offer Period”). No later than three Business Days after the termination of the Offer Period (the “Purchase Date”), the Company will
apply all Excess Proceeds (the “Offer Amount”) to the purchase of Notes and such other pari passu Indebtedness (on a pro rata basis, if applicable) or, if less than the Offer Amount has been tendered, all Notes and
other Indebtedness tendered in response to the Asset Sale Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made. 
 (ii) If the Purchase Date is on or after an interest record date and on or before the related interest payment date, any accrued and
unpaid interest will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender Notes pursuant to the Asset Sale Offer. 
 (iii) Upon the commencement of an Asset Sale Offer, the Company will send, by first class mail, a notice to the Trustee and each of the
Holders, with a copy to the Trustee. The notice will contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Asset Sale Offer. The notice, which will govern the terms of the Asset Sale Offer, will
state: 
 (A) that the Asset Sale Offer is being made pursuant to this Section 10.12 and the length of time the Asset
Sale Offer will remain open; 
 (B) the Offer Amount, the purchase price and the Purchase Date; 
 (C) that any Note not tendered or accepted for payment will continue to accrue interest; 
 (D) that, unless the Company defaults in making such payment, any Note accepted for payment pursuant to the Asset Sale Offer will cease
to accrue interest after the Purchase Date; 
 (E) that Holders electing to have a Note purchased pursuant to an Asset Sale
Offer may elect to have Notes purchased in denominations of $2,000 and integral multiples of $1,000 in excess of $2,000 only; 
 (F) that Holders electing to have Notes purchased pursuant to any Asset Sale Offer will be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by
book-entry transfer, to the Company, a depositary, if appointed by the Company, or a Paying Agent at the address specified in the notice at least three days before the Purchase Date; 
 (G) that Holders will be entitled to withdraw their election if the Company, the depositary or the Paying Agent, as the case may be,
receives, not later than the expiration of the Offer Period, a telegram, telex, facsimile transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement that such
Holder is withdrawing his election to have such Note purchased; 
  

 First Supplemental Indenture 
 70 

 (H) that, if the aggregate principal amount of Notes and other pari passu
Indebtedness surrendered by Holders thereof exceeds the Offer Amount, the Company will select the Notes and other pari passu Indebtedness to be purchased on a pro rata basis based on the principal amount of Notes and such other pari
passu Indebtedness surrendered (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or integral multiples of $1,000 in excess of $2,000, will be purchased); and 
 (I) that Holders whose Notes were purchased only in part will be issued new Notes equal in principal amount to the unpurchased portion of
the Notes surrendered (or transferred by book-entry transfer). 
 (iv) On or before the Purchase Date, the Company will, to
the extent lawful, accept for payment, on a pro rata basis to the extent necessary, the Offer Amount of Notes or portions thereof tendered pursuant to the Asset Sale Offer, or if less than the Offer Amount has been tendered, all Notes
tendered, and will deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating that such Notes or portions thereof were accepted for payment by the Company in accordance with the
terms of this Section 10.12. The Company, the depositary or the Paying Agent, as the case may be, will promptly (but in any case not later than five days after the Purchase Date) mail or deliver to each tendering Holder an amount equal to the
purchase price of the Notes tendered by such Holder and accepted by the Company for purchase, and the Company will promptly issue a new Note, and the Trustee, upon written request from the Company, will authenticate and mail or deliver (or cause to
be transferred by book entry) such new Note to such Holder, in a principal amount equal to any unpurchased portion of the Note surrendered. Any Note not so accepted shall be promptly mailed or delivered by the Company to the Holder thereof. The
Company will publicly announce the results of the Asset Sale Offer on the Purchase Date. 
 SECTION 4.07. Transactions with
Affiliates. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article
Ten of the Original Indenture is hereby further amended by adding the following Section 10.13 thereto: 
 Section 10.13
Transactions with Affiliates. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to,
make any payment to, or sell, lease, transfer or otherwise dispose of any of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction, contract, agreement, understanding, loan, advance or
Guarantee with, or for the benefit of, any Affiliate of the Company (each, an “Affiliate Transaction”), unless: 
 (i) the Affiliate Transaction is on terms that are no less favorable to the Company or the relevant Restricted Subsidiary than those that would have been obtained in a comparable transaction by the Company or such Restricted Subsidiary with
a Person that is not an Affiliate of the Company; and 
 (ii) the Company delivers to the Trustee: 
 (A) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of
$20.0 million, a Board Resolution of the Company set forth in an Officers’ Certificate certifying that such Affiliate Transaction or series of related Affiliate Transactions complies with this Section 10.13 and that such Affiliate
Transaction or series of related Affiliate Transactions has been approved by a majority of the disinterested members of the Board of Directors of the Company; and 
  

 First Supplemental Indenture 
 71 

 (B) with respect to any Affiliate Transaction or series of related Affiliate
Transactions involving aggregate consideration in excess of $40.0 million, an opinion as to the fairness to the Company or such Restricted Subsidiary of such Affiliate Transaction or series of related Affiliate Transactions from a financial point of
view issued by an accounting, appraisal or investment banking firm of national standing. 
 (b) The following items will not
be deemed to be Affiliate Transactions and, therefore, will not be subject to the provisions of the prior paragraph: 
 (i)
any employment, consulting or similar agreement or arrangement, stock option or stock ownership plan, employee benefit plan, officer or director indemnification agreement, restricted stock agreement, severance agreement or other compensation plan or
arrangement entered into by the Company or any of its Restricted Subsidiaries in the ordinary course of business and payments, awards, grants or issuances of securities pursuant thereto; 
 (ii) transactions between or among the Company and/or its Restricted Subsidiaries; 
 (iii) transactions with a Person that is an Affiliate of the Company solely because the Company owns, directly or through a Subsidiary, an
Equity Interest in, or controls, such Person; 
 (iv) reasonable fees and expenses and compensation paid to, and indemnity or
insurance provided on behalf of, officers, directors or employees of the Company or any of its Restricted Subsidiaries; 
 (v)
any issuance of Equity Interests (other than Disqualified Stock) of the Company to, or receipt of a capital contribution from, Affiliates of the Company; 
 (vi) Restricted Payments that do not violate Section 10.9 of this Indenture or any Permitted Investments; 
 (vii) loans or advances to employees in the ordinary course of business or consistent with past practice; 
 (viii) advances to or reimbursements of employees for moving, entertainment and travel expenses, drawing accounts and similar expenditures in the ordinary course of business; 
 (ix) the performance of obligations of the Company or any of its Restricted Subsidiaries under the terms of any written agreement to which
the Company or any of 

  

 First Supplemental Indenture 
 72 

 
its Restricted Subsidiaries was a party on the Issue Date, as these agreements may be amended, modified or supplemented from time to time; provided,
however, that any future amendment, modification or supplement entered into after the Issue Date will be permitted to the extent that its terms do not materially and adversely affect the rights of any Holders of the Notes (as determined in
good faith by the Board of Directors of the Company) as compared to the terms of the agreements in effect on the Issue Date; 
 (x) (A) guarantees of performance by the Company and its Restricted Subsidiaries of Unrestricted Subsidiaries in the ordinary course of business, except for guarantees of Indebtedness in respect of borrowed money, and (B) pledges of
Equity Interests of Unrestricted Subsidiaries for the benefit of lenders of Unrestricted Subsidiaries; and 
 (xi)
transactions between the Company or any Restricted Subsidiary and any Person, a director of which is also a director of the Company or any direct or indirect parent company of the Company and such director is the sole cause for such Person to be
deemed an Affiliate of the Company or any Restricted Subsidiary; provided, however, that such director abstains from voting as a director of the Company or such direct or indirect parent company of the Company, as the case may be, on
any matter involving such other Person. 
 SECTION 4.08. Limitation on Liens. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.14 thereto: 
 Section 10.14 Limitation on Liens. 
 The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, incur or permit to exist
any Lien (other than Permitted Liens) upon any Principal Property or any shares of stock or Indebtedness of any Restricted Subsidiary that owns or leases any Principal Property (whether such Principal Property, shares of stock or Indebtedness are
now owned or hereafter acquired), securing any Subordinated Debt or other Indebtedness, unless: 
 (a) in the case of Liens
securing Subordinated Debt of the Company or a Guarantor, the Notes or Subsidiary Guarantee, as applicable, are secured by a Lien on such Principal Property or such shares of stock or Indebtedness on a senior basis to the Subordinated Debt so
secured with the same priority as the Notes or such Subsidiary Guarantee, as applicable, has to such Subordinated Debt until such time as such Subordinated Debt is no longer so secured by a Lien; and 
 (b) in the case of Liens securing other Indebtedness of the Company or a Guarantor, the Notes or Subsidiary Guarantees, as applicable, are
secured by a Lien on such Principal Property or such shares of stock or Indebtedness on an equal and ratable basis with the other Indebtedness so secured until such time as such other Indebtedness is no longer so secured by a Lien. 
  

 First Supplemental Indenture 
 73 

 SECTION 4.09. Offer to Repurchase upon a Change of Control. 

Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.15 thereto: 
 Section 10.15 Offer to Repurchase upon a Change of Control.

 (a) If a Change of Control occurs, each Holder of Notes will have the right to require the Company to repurchase all or any
part (equal to $1,000 or an integral multiple of $1,000) of that Holder’s Notes pursuant to an offer (a “Change of Control Offer”) on the terms set forth in this Section 10.15. In the Change of Control Offer, the Company
will offer a payment in cash (the “Change of Control Payment”) equal to not less than 101% of the aggregate principal amount of Notes repurchased plus accrued and unpaid interest and Liquidated Damages, if any, on the Notes
repurchased to the date of purchase (the “Change of Control Payment Date”), subject to the rights of Holders of Notes on the relevant Record Date to receive interest due on the relevant Interest Payment Date. Within thirty days
following any Change of Control, the Company will mail a notice to each Holder describing the transaction or transactions that constitute the Change of Control and stating: 
 (i) that the Change of Control Offer is being made pursuant to this Section 10.15 and that all Notes tendered will be accepted for
payment; 
 (ii) the purchase price and the Change of Control Payment Date, which shall be no earlier than 30 days and no
later than 60 days from the date such notice is mailed; 
 (iii) that any Note not tendered will continue to accrue interest;

 (iv) that, unless the Company defaults in the payment of the Change of Control Payment, all Notes accepted for payment
pursuant to the Change of Control Offer will cease to accrue interest after the Change of Control Payment Date; 
 (v) that
Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender the Notes, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by
book-entry transfer, to the Paying Agent at the address specified in the notice prior to the close of business on the third Business Day preceding the Change of Control Payment Date; 
 (vi) that Holders will be entitled to withdraw their election if the Paying Agent receives, not later than the close of business on the
second Business Day preceding the Change of Control Payment Date, a telegram, telex, facsimile transmission or letter setting forth the name of the Holder, the principal amount of Notes delivered for purchase, and a statement that such Holder is
withdrawing his election to have the Notes purchased; and 
 (vii) that Holders whose Notes are being purchased only in part
will be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered, which unpurchased portion must be equal to $1,000 in principal amount or an integral multiple thereof. 
  

 First Supplemental Indenture 
 74 

 The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and
any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control. To the extent that the provisions of any securities laws
or regulations conflict with the Change of Control provisions of this Indenture, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control
provisions of this Indenture by virtue of such compliance. 
 (b) On the Change of Control Payment Date, the Company will, to
the extent lawful: 
 (i) accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of
Control Offer; 
 (ii) deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes
or portions of Notes properly tendered; and 
 (iii) deliver or cause to be delivered to the Trustee the Notes properly
accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Company. 
 (c) The Paying Agent will promptly mail or wire transfer to each Holder of Notes properly tendered the Change of Control Payment for such Notes (or, if all the Notes are then in global form, make such payment through
the facilities of the Depositary), and the Trustee will promptly authenticate and mail (or cause to be transferred by book entry) to each Holder a new Note equal in principal amount to any unpurchased portion of the Notes surrendered, if any;
provided that each such new Note will be in a principal amount of $2,000 and integral multiples of $1,000 in excess of $2,000. Any Note so accepted for payment will cease to accrue interest on and after the Change of Control Payment Date
unless the Company defaults in making the Change of Control Payment. 
 (d) The Company will publicly announce the results of
the Change of Control Offer on or as soon as practicable after the Change of Control Payment Date. 
 (e) Notwithstanding
anything to the contrary in this Section 10.15, the Company will not be required to make a Change of Control Offer upon a Change of Control if (i) a third party makes the Change of Control Offer in the manner, at the times and otherwise in
compliance with the requirements set forth in this Indenture applicable to a Change of Control Offer made by the Company and purchases all Notes properly tendered and not withdrawn under the Change of Control Offer, or (ii) notice of redemption
with respect to the Notes has been given pursuant to this Indenture, unless and until there is a Default in payment of the applicable Redemption Price. 
 (f) A Change of Control Offer may be made in advance of a Change of Control, and conditioned upon the occurrence of such Change of Control, if a definitive agreement is in place for the Change of Control at the time
of making the Change of Control Offer. Notes repurchased by the Company pursuant to a Change of Control Offer will have the status of Notes issued but not Outstanding or will be retired and cancelled, at the Company’s option. Notes purchased by
a third party pursuant to clause (e) of this Section 10.15 will have the status of Notes issued and Outstanding. 
 (g) In the event that Holders of at least 90% of the aggregate principal amount of the Outstanding Notes accept a Change of Control Offer and the Company purchases all of the Notes 

  

 First Supplemental Indenture 
 75 

 
held by such Holders, the Company will have the right, upon not less than 30 nor more than 60 days’ prior notice, given not more than 30 days following
a Change of Control Payment Date, to redeem all, but not less than all, of the Notes that remain Outstanding at a Redemption Price equal to the Change of Control Payment plus, to the extent not included in the Change of Control Payment,
accrued and unpaid interest and Liquidated Damages, if any, on the Notes that remain Outstanding, to the date of redemption (subject to the right of Holders on the relevant record date to receive interest due on the relevant Interest Payment Date).

 SECTION 4.10. Designation of Restricted and Unrestricted Subsidiaries. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby
further amended by adding the following Section 10.16 thereto: 
 Section 10.16 Designation of Restricted and Unrestricted
Subsidiaries. 
 (a) The Board of Directors of the Company may designate any Restricted Subsidiary to be an Unrestricted
Subsidiary if that designation would not cause a Default. If a Restricted Subsidiary is designated as an Unrestricted Subsidiary, the aggregate Fair Market Value of all outstanding Investments owned by the Company and its Restricted Subsidiaries in
the Subsidiary designated as an Unrestricted Subsidiary will be deemed to be an Investment made as of the time of the designation and will reduce the amount available for Restricted Payments under Section 10.9 of this Indenture or under one or
more clauses of the definition of Permitted Investments, as determined by the Company. That designation will only be permitted if the Investment would be permitted at that time and if the applicable Restricted Subsidiary otherwise meets the
definition of an Unrestricted Subsidiary. 
 (b) Any designation of a Subsidiary of the Company as an Unrestricted Subsidiary
will be evidenced to the Trustee by filing with the Trustee a certified copy of a Board Resolution of the Company giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the preceding
conditions and was permitted by Section 10.9. If, at any time, any Unrestricted Subsidiary would fail to meet the requirements of the definition of “Unrestricted Subsidiary” set forth in Section 1.1 of this Indenture, it will
thereafter cease to be an Unrestricted Subsidiary for purposes of this Indenture and any Indebtedness of such Subsidiary will be deemed to be incurred by a Restricted Subsidiary as of such date and, if such Indebtedness is not permitted to be
incurred as of such date under Section 10.11, the Company will be in Default of such covenant. The Board of Directors of the Company may at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary; provided that such
designation will be deemed to be an incurrence of Indebtedness by a Restricted Subsidiary of any outstanding Indebtedness of such Unrestricted Subsidiary, and such designation will only be permitted if (i) such Indebtedness is permitted under
Section 10.11, calculated on a pro forma basis as if such designation had occurred at the beginning of the four-quarter reference period; and (ii) no Default or Event of Default would be in existence following such designation. 

SECTION 4.11. Subsidiary Guarantees. 
 Subject to the limitations set forth in the preamble to ARTICLE 4 of this First Supplemental Indenture, Article Ten of the Original Indenture is hereby further amended by adding the following Section 10.17
thereto: 
  

 First Supplemental Indenture 
 76 

 Section 10.17 Subsidiary Guarantees. 
 If, on any date after the Issue Date, any Domestic Restricted Subsidiary that is not already a Guarantor both: 
 (a) Guarantees (or otherwise becomes liable for) Obligations under the Senior Credit Agreement; and 
 (b) constitutes a Material Subsidiary, 
 then such Domestic Restricted Subsidiary will unconditionally Guarantee the Notes and concurrently become a Guarantor in accordance with the procedures specified in this Indenture. 
 The Subsidiary Guarantee of a Guarantor will be released at such time as such Guarantor ceases to either (i) Guarantee (or otherwise be liable for)
Obligations under the Senior Credit Agreement or (ii) constitute a Material Subsidiary. 
 ARTICLE 5 
 MISCELLANEOUS 
 SECTION 5.01. Certain Trustee Matters. 
 The recitals contained herein shall be taken as the
statements of the Company, and the Trustee assumes no responsibility for their correctness. 
 The Trustee makes no representations as to the
validity or sufficiency of this First Supplemental Indenture or the Notes or the proper authorization or the due execution hereof or thereof by the Company. 
 Except as expressly set forth herein, nothing in this First Supplemental Indenture shall alter the duties, rights or obligations of the Trustee set forth in the Original Indenture. 
 The Trustee makes no representation or warranty as to the validity or sufficiency of the information contained in the prospectus supplement related to
the Notes, except such information which specifically pertains to the Trustee itself, or any information incorporated therein by reference. 
 SECTION 5.02. Continued Effect. 
 Except as expressly supplemented and amended by this First
Supplemental Indenture, the Original Indenture shall continue in full force and effect in accordance with the provisions thereof, and the Original Indenture (as supplemented and amended by this First Supplemental Indenture) is in all respects hereby
ratified and confirmed. This First Supplemental Indenture and all its provisions shall be deemed a part of the Original Indenture in the manner and to the extent herein and therein provided. 
 SECTION 5.03. Governing Law. 
 This First Supplemental Indenture, the Notes and the Subsidiary Guarantees, if any, shall be governed by and construed in accordance with the laws of the State of New York. 
  

 First Supplemental Indenture 
 77 

 SECTION 5.04. Counterparts. 
 This instrument may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together
constitute but one and the same instrument. 
 (Remainder of Page Intentionally Left Blank) 
  

 First Supplemental Indenture 
 78 

 IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed
and delivered, all as of the day and year first above written. 
  

			
	THE COMPANY:
	
	PETROLEUM DEVELOPMENT CORPORATION
		
	By:	 	 /s/ Steven Williams

	Name:	 	Steven Williams
	Title:	 	Chief Executive Officer

  

 First Supplemental Indenture 

			
	TRUSTEE:
	
	THE BANK OF NEW YORK
		
	By:	 	 /s/ Mary LaGumina

	Name:	 	Mary LaGumina
	Title:	 	Authorized Officer

  

 First Supplemental Indenture 

 EXHIBIT A 
 [Face of Note] 
  
 CUSIP: [            ] 
 ISIN:
[            ] 
 12% Senior Notes due 2018 

			
	No. —	 	$[                    ]

 PETROLEUM DEVELOPMENT CORPORATION 
 promises to pay to [        ] or registered assigns, 
 the principal sum of
                                        
                                        
                                        
                                        
DOLLARS on February 15, 2018. 
 Interest Payment Dates: February 15 and August 15 
 Record Dates: February 1 and August 1 
 Dated: February 8,
2008 
  

			
	PETROLEUM DEVELOPMENT CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	

 This is one of the Notes referred to 
 in the within-mentioned Indenture: 
  

			
	[TRUSTEE],
	as Trustee
		
	 By:
	 	  

		 	Authorized Signatory

  

 First Supplemental Indenture 
 A-1 

 [If a Global Note, insert —THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING
THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO
SECTION 3.5 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 3.5 OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 3.9 OF THE
INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. 
 UNLESS AND UNTIL IT IS
EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY
OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK)
(“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE
REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
 [If a Restricted Global Note or a Restricted Definitive Note, insert
— THIS NOTE HAS NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND ACCORDINGLY, MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF,
UNITED STATES PERSONS EXCEPT AS SET FORTH IN THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) OR
(B) IT IS NOT A UNITED STATES PERSON AND IS ACQUIRING THIS NOTE IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT, OR (C) IT IS AN INSTITUTIONAL “ACCREDITED INVESTOR” (AS DEFINED IN RULE
501(a)(1), (2), (3) OR (7) OF REGULATION D UNDER THE SECURITIES ACT) (AN “INSTITUTIONAL ACCREDITED INVESTOR”), (2) AGREES THAT IT WILL NOT, WITHIN THE TIME PERIOD REFERRED TO IN RULE 144(k) UNDER THE SECURITIES ACT AFTER THE
ORIGINAL ISSUANCE OF THESE NOTES, RESELL OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, (C) OUTSIDE
THE UNITED STATES IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH RULE 904 UNDER THE SECURITIES ACT, (D) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE), (E) INSIDE THE UNITED STATES
TO AN INSTITUTIONAL ACCREDITED INVESTOR THAT, PRIOR TO SUCH TRANSFER, FURNISHES 

  

 First Supplemental Indenture 
 A-2 

 
TO THE TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER OF THIS NOTE (THE FORM OF WHICH
LETTER CAN BE OBTAINED FROM THE TRUSTEE) AND IF SUCH TRANSFER IS IN RESPECT OF AN AGGREGATE PRINCIPAL AMOUNT OF NOTES OF LESS THAN $100,000, AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT,
(F) IN ACCORDANCE WITH ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (AND BASED UPON AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY) OR (G) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES
ACT AND (3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY TRANSFER OF THIS NOTE WITHIN THE TIME PERIOD REFERRED TO IN RULE 144(k) UNDER
THE SECURITIES ACT AFTER THE ORIGINAL ISSUANCE OF THESE NOTES, THE HOLDER MUST CHECK THE APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO THE TRUSTEE. IF THE PROPOSED TRANSFEREE
IS AN INSTITUTIONAL ACCREDITED INVESTOR, THE HOLDER MUST, PRIOR TO SUCH TRANSFER, FURNISH TO THE TRUSTEE AND THE COMPANY SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS EITHER OF THEM MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER
IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. AS USED HEREIN, THE TERMS “OFFSHORE TRANSACTION,” “UNITED STATES” AND “UNITED STATES
PERSON” HAVE THE MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT. THE INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER ANY TRANSFER OF THIS NOTE IN VIOLATION OF THE FOREGOING RESTRICTIONS. [Insert
the Private Placement Legend, if applicable pursuant to the provisions of the Indenture]] 
  

 First Supplemental Indenture 
 A-3 

 [Back of Note] 
 12% Senior Notes due 2018 
 Capitalized terms used herein have the meanings assigned to them in the
Indenture referred to below unless otherwise indicated. To the extent that any of the terms and provisions of this Note conflict with the express provisions of the Indenture, the terms and provisions of the Indenture shall govern and be controlling.

 (1) INTEREST. Interest on the Notes will accrue at the rate of 12% per annum and will be payable
semi-annually in arrears on February 15 and August 15, beginning on August 15, 2008; provided, however, that upon any failure by the Company for 60 days to comply with Section 10.7 of the Indenture the interest rate
on the Notes will increase by 0.50% per annum and remain at such increased rate thereafter, but only for as long as there is a continuing Default under Section 10.7, and upon resumption of compliance by the Company with Section 10.7,
the interest rate will be reset as if the interest rate had never been increased pursuant to this provision. Interest on overdue principal, interest and Liquidated Damages, if any, will accrue at the applicable interest rate on the Notes. Any
Liquidated Damages due will be paid on the same dates as interest on the Notes. Interest on the Notes will accrue from the date of original issuance or, if interest has already been paid, from the date it was most recently paid. Interest will be
computed on the basis of a 360-day year comprised of twelve 30-day months. If a payment date is a Legal Holiday at a Place of Payment, payment may be made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall
accrue on such payment for the intervening period. The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at the rate equal to the applicable interest rate on the Notes to the
extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest and Liquidated Damages (without regard to any applicable grace period) at the same rate to the
extent lawful. 
 (2) METHOD OF PAYMENT. The Company will pay interest on
the Notes (except defaulted interest) and Liquidated Damages, if any, to the Persons who are registered Holders of Notes at the close of business on the February 1 or August 1 next preceding the Interest Payment Date, even if such Notes
are canceled after such record date and on or before such Interest Payment Date, except as provided in Section 3.7 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium and Liquidated Damages,
if any, and interest at the office or agency of the Company maintained for such purpose within or without the City and State of New York, or, at the option of the Company, payment of interest and Liquidated Damages, if any, may be made by check
mailed to the Holders at their addresses set forth in the Security Register; provided that payment by wire transfer of immediately available funds will be required with respect to principal of and interest, premium and Liquidated Damages, if
any, on, all Global Notes and all other Notes the Holders of which will have provided wire transfer instructions to the Company or the Paying Agent. Such payment will be in such coin or currency of the United States of America as at the time of
payment is legal tender for payment of public and private debts. 
 (3) PAYING AGENT AND
SECURITY REGISTRAR. Initially, The Bank of New York, the Trustee under the Indenture, will act as Paying Agent and Security Registrar. The Company may change any Paying Agent or Security Registrar
without notice to any Holder. The Company or any of its Subsidiaries may act in any such capacity. 
 (4)
INDENTURE. The Company issued the Notes under an Indenture, dated as of February 8, 2008, by and between the Company and the Trustee (the “Original Indenture”), as amended and supplemented
by the First Supplemental Indenture thereto, dated as of February 8, 2008, by and between the Company and the Trustee (the “Supplemental Indenture”). The Original Indenture, as amended and 

  

 First Supplemental Indenture 
 A-4 

 
supplemented by the Supplemental Indenture, is referred to herein as the “Indenture”. The terms of the Notes include those stated in the
Indenture and those made part of the Indenture by reference to the Trust Indenture Act. The Notes are subject to all such terms, and Holders are referred to the Indenture and such Act for a statement of such terms. To the extent any provision of
this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Notes are unsecured obligations of the Company. The Indenture does not limit the aggregate principal amount of
Notes that may be issued thereunder. 
 (5) OPTIONAL REDEMPTION. Except as described
below, the Notes are not redeemable until February 15, 2013. On and after February 15, 2013, the Company may redeem all or a part of the Notes, from time to time upon not less than 30 nor more than 60 days’ prior notice, at the
following Redemption Prices (expressed as a percentage of principal amount) plus accrued and unpaid interest and Liquidated Damages, if any, on the Notes redeemed to the applicable Redemption Date (subject to the rights of Holders of Notes on
the relevant record date to receive interest due on the relevant Interest Payment Date), if redeemed during the twelve-month period beginning on February 15 of the years indicated below: 
  

				
	 Year
	  	Redemption
Price	 
	 2013
	  	106.000	%
	 2014
	  	104.000	%
	 2015
	  	102.000	%
	 2016 and thereafter
	  	100.000	%

 At any time or from time to time prior to February 15, 2013, the Company may also redeem all
or a part of the Notes, upon not less than 30 nor more than 60 days’ prior notice, at a Redemption Price equal to the Make-Whole Price, subject to the rights of holders of Notes on the relevant record date to receive interest due on the
relevant interest payment date. 
 “Make-Whole Price” with respect to any Notes to be redeemed, means an amount equal to the
greater of: 
 (1) 100% of the principal amount of such Notes; and 
 (2) the sum of the present values of (a) the Redemption Price of such Notes at February 15, 2013 (as set forth above) and
(b) the remaining scheduled payments of interest from the Redemption Date to February 15, 2013 (not including any portion of such payments of interest accrued as of the Redemption Date) discounted back to the Redemption Date on a
semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined below) plus 50 basis points; 
 plus, in the case of both (1) and (2), accrued and unpaid interest on such Notes, and Liquidated Damages, if any, to the Redemption Date. 
 “Comparable Treasury Issue” means, with respect to Notes to be redeemed, the U.S. Treasury security selected by an Independent Investment Banker as having a maturity most nearly equal to the period
from the Redemption Date to February 15, 2013, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities; provided that if such period is less than one year, then the
U.S. Treasury security having a maturity of one year shall be used. 
  

 First Supplemental Indenture 
 A-5 

 “Comparable Treasury Price” means, with respect to any Redemption Date, (1) the
average of four Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (2) if the Trustee obtains fewer than four such Reference Treasury Dealer
Quotations, the average of all such Reference Treasury Dealer Quotations. 
 “Independent Investment Banker” means Morgan
Stanley & Co. Incorporated or J.P. Morgan Securities Inc. and their respective successors, or, if such firms or their respective successors, if any, as the case may be, are unwilling or unable to select the Comparable Treasury Issue, an
independent investment banking institution of national standing appointed by the Company. 
 “Reference Treasury Dealer”
means Morgan Stanley & Co. Incorporated or J.P. Morgan Securities Inc. and three additional primary Government Securities dealers in New York City (each a “Primary Treasury Dealer”) selected by the Company, and its
successors; provided, however, that if any such firm or any such successor, as the case may be, shall cease to be a primary Government Securities dealer in New York City, the Company shall substitute therefor another Primary Treasury
Dealer. 
 “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any Redemption
Date, the average, as determined by the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Trustee by such Reference Treasury Dealer at
5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date. 
 “Treasury Rate” means, with
respect to any Redemption Date, (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15(159)” or any successor
publication that is published weekly by the Board of Governors of the Federal Reserve System and that establishes yields on actively traded U.S. Treasury securities adjusted to constant maturity under the caption “Treasury Constant
Maturities,” for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after the stated maturity, yields for the two published maturities most closely corresponding to the Comparable
Treasury Issue shall be determined, and the Treasury Rate shall be interpolated or extrapolated from such yields on a straight-line basis, rounding to the nearest month) or (2) if such release (or any successor release) is not published during
the week preceding the calculation date or does not contain such yields, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed
as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. The Treasury Rate shall be calculated on the third Business Day preceding the Redemption Date. 
 The notice of redemption with respect to the foregoing redemption need not set forth the Make-Whole Price but only the manner of calculation thereof. The
Company will notify the Trustee of the Make-Whole Price with respect to any redemption promptly after the calculation, and the Trustee shall not be responsible for such calculation. 
 Prior to February 15, 2011, the Company may on any one or more occasions redeem up to 35% of the principal amount of the Notes, with all or a
portion of the net cash proceeds of one or more Equity Offerings at a Redemption Price equal to 112.0% of the principal amount thereof, plus accrued and unpaid interest and Liquidated Damages, if any, on the Notes redeemed to the Redemption
Date (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant Interest Payment Date); provided that: 
  

 First Supplemental Indenture 
 A-6 

 (1) at least 65% of the aggregate principal amount of the Notes issued on the Issue Date (excluding Notes
held by the Company and its Subsidiaries) remains Outstanding after each such redemption; and 
 (2) the redemption occurs within 180 days
after the closing of such Equity Offering. 
 Notice of any redemption upon an Equity Offering may be given prior to the
completion of the related Equity Offering, and any such redemption or notice may at the Company’s discretion, be subject to one or more conditions precedent, including, but not limited to completion of the related Equity Offering. 

Unless the Company defaults in the payment of the Redemption Price, interest and Liquidated Damages, if any, will cease to accrue on the Notes or
portions thereof called for redemption on the applicable Redemption Date. 
 (6) MANDATORY
REDEMPTION. The Company is not required to make mandatory redemption or sinking fund payments with respect to the Notes. 
 (7) REPURCHASE AT THE OPTION OF HOLDER. 
 (a) If there is a Change of Control, the Company will be required to make an offer (a “Change of Control Offer”) to each
Holder to repurchase all or any part (equal to $1,000 or in integral multiples of $1,000 in excess thereof) of each Holder’s Notes at a purchase price in cash equal to not less than 101% of the aggregate principal amount thereof plus accrued
and unpaid interest and Liquidated Damages, if any, thereon to the date of purchase, subject to the rights of Holders on the relevant record date to receive interest due on the relevant Interest Payment Date (the “Change of Control
Payment”). Within 30 days following any Change of Control, the Company will mail a notice to each Holder setting forth the procedures governing the Change of Control Offer as required by the Indenture. 
 (b) If the Company or a Restricted Subsidiary of the Company consummates any Asset Sales, within 10 Business Days of each date on which
the aggregate amount of Excess Proceeds exceeds $20.0 million, the Company will make an offer (an “Asset Sale Offer”) to all Holders of Notes and all holders of other Indebtedness that is pari passu with the Notes containing
provisions similar to those set forth in the Indenture with respect to offers to purchase or redeem with the proceeds of sales of assets pursuant to Section 10.12 of the Indenture to purchase the maximum principal amount of Notes and such other
pari passu Indebtedness that may be purchased out of the Excess Proceeds. The offer price in any Asset Sale will be equal to 100% of the principal amount plus accrued and unpaid interest and Liquidated Damages, if any, to the date of
purchase, in accordance with the procedures set forth in the Indenture. If any Excess Proceeds remain unapplied after the consummation of an Asset Sale Offer, the Company (or any Restricted Subsidiary) may use the Excess Proceeds for any purpose not
otherwise prohibited by the Indenture. If the aggregate principal amount of Notes and other pari passu Indebtedness tendered into such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee shall select the Notes and such other
pari passu Indebtedness to be purchased on a pro rata basis. Holders of Notes that are the subject of an offer to purchase will receive notice of an Asset Sale Offer from the Company prior to any related purchase date and may elect to
have such Notes purchased by completing the form entitled “Option of Holder to Elect Purchase” attached to the Notes. 
  

 First Supplemental Indenture 
 A-7 

 (8) NOTICE OF REDEMPTION. Notice of
redemption will be mailed at least 30 days but not more than 60 days before the Redemption Date to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a
Redemption Date if the notice is issued in connection with a defeasance of the Notes or a satisfaction or discharge of the Indenture. Notes in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000, unless all
of the Notes held by a Holder are to be redeemed. 
 (9) DENOMINATIONS, TRANSFER,
EXCHANGE. The Notes are in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as
provided in the Indenture. The Security Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and the Company may require a Holder to pay any taxes and fees required by law or
permitted by the Indenture. The Company need not exchange or register the transfer of any Note or portion of a Note selected for redemption, except for the unredeemed portion of any Note being redeemed in part. Also, the Company need not exchange or
register the transfer of any Notes for a period of 15 days before a selection of Notes to be redeemed or during the period between a record date and the corresponding Interest Payment Date. 
 (10) PERSONS DEEMED OWNERS. The registered Holder of a Note may be treated as its
owner for all purposes. 
 (11) AMENDMENT, SUPPLEMENT AND
WAIVER. Subject to certain exceptions, the Indenture or the Notes may be amended or supplemented with the consent of the Holders of at least a majority in principal amount of the Notes then outstanding (including,
without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes), and any existing default or compliance with any provision of the Indenture or the Notes may be waived with the consent of the
Holders of a majority in principal amount of the then outstanding Notes (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes). Without the consent of any Holder of a Note,
the Indenture or the Notes may be amended or supplemented to, among other things, cure any ambiguity, defect or inconsistency, or make any change that does not adversely affect the legal rights under the Indenture of any such Holder. 
 (12) DEFAULTS AND REMEDIES. In the case of an Event of Default arising from events of
bankruptcy or insolvency specified in clause (ix) or (x) of Section 5.1(a) of the Indenture, with respect to the Company, any Restricted Subsidiary that is a Significant Subsidiary or any group of Restricted Subsidiaries that, taken
together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25%
in principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately by notice in writing to the Company specifying the Event of Default. Holders of the Notes may not enforce the Indenture or the Notes except
as provided in the Indenture. Subject to certain limitations, Holders of a majority in principal amount of the then outstanding Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders of the Notes
notice of any Default or Event of Default (except a Default or Event of Default relating to the payment of principal, premium or interest or Liquidated Damages) if and so long as a committee of its Responsible Officers in good faith determines that
withholding the notice is in the interests of the Holders of the Notes. The Company is required to deliver to the Trustee annually a statement regarding the compliance with the Indenture, and the Company is required, upon becoming aware of any
Default or Event of Default, to deliver to the Trustee a statement specifying such Default or Event of Default. The Holders of a majority in aggregate principal amount of the Notes then outstanding by notice to the Trustee may on behalf of the
Holders of all of the Notes waive any existing Default or Event of Default and its consequences under the Indenture, except a continuing 

  

 First Supplemental Indenture 
 A-8 

 
Default or Event of Default in the payment of interest or Liquidated Damages on, or the principal of, the Notes. The Holders of a majority in principal
amount of the then outstanding Notes will have the right to direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee. However, the Trustee may refuse to follow any direction that conflicts
with law or the Indenture, that may involve the Trustee in personal liability, and may take any other action it deems proper that is not inconsistent with any such direction received from Holders of Notes. 
 (13) TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its individual or
any other capacity, may make loans to, accept deposits from, and perform services for the Company or its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not the Trustee. 
 (14) NO RECOURSE AGAINST OTHERS. No past, present or future director,
officer, employee, incorporator, stockholder, member, manager or partner of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Notes, the Indenture, the Subsidiary
Guarantees, if applicable, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the
consideration for issuance of the Notes. 
 (15) AUTHENTICATION. This Note will not be valid until
authenticated by the manual signature of the Trustee or an authenticating agent. 
 (16) ADDITIONAL RIGHTS
OF HOLDERS OF RESTRICTED GLOBAL NOTES AND RESTRICTED DEFINITIVE NOTES. In addition to the rights
provided to Holders under the Indenture, Holders of Restricted Global Notes and Restricted Definitive Notes shall have all the rights and obligations set forth in the Registration Rights Agreement. By any such Holder’s acceptance of Restricted
Global Notes or Restricted Definitive Notes, such Holder acknowledges and agrees to the provisions of the applicable Registration Rights Agreement, including without limitation the obligations of the Holders with respect to indemnification of the
Company to the extent provided therein. 
 (17) ABBREVIATIONS. Customary abbreviations may be used in
the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to
Minors Act). 
 (18) CUSIP NUMBERS. Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company has caused CUSIP numbers to be printed on the Notes, and the Trustee may use CUSIP numbers in notices of redemption as a convenience to Holders. No representation is made as to the accuracy of such
numbers either as printed on the Notes or as contained in any notice of redemption, and reliance may be placed only on the other identification numbers placed thereon. 
 (19) GOVERNING LAW. THE LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE AND ENFORCE THE INDENTURE AND THIS NOTE. 
 The Company will furnish to any Holder upon written request and without charge a copy of the Indenture and/or the Registration Rights Agreement. Requests may be made to: 
 Petroleum Development Corporation 
 120 Genesis Boulevard 
  

 First Supplemental Indenture 
 A-9 

 Bridgeport, West Virginia 26330 
 Facsimile No.: (304) 842-0913 
 Attention: Chief Financial Officer 
  

 First Supplemental Indenture 
 A-10 

 ASSIGNMENT FORM 
 To assign this Note, fill in the form below: 
  

			
	(I) or (we) assign and transfer this Note to:	 	  

		 	(Insert assignee’s legal name)

  

	
	  

 (Insert assignee’s soc. sec. or tax I.D. no.) 
  

	
	  

	  

	  

	  

 (Print or type assignee’s name, address and zip code) 
  

			
	and irrevocably appoint	  	  

	to transfer this Note on the books of the Company. The agent may substitute another to act for him.

  

									
	 Date:
	 	  
	 		 		 	
		 		 		 	Your Signature:	 	  

		 		 		 	        (Sign exactly as your name appears on the face of this Note)

  

			
	 Signature Guarantee*:
	 	  

  

	*	Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee). 

  

 First Supplemental Indenture 
 A-11 

 OPTION OF HOLDER TO ELECT
PURCHASE 
 If you want to elect to have this Note purchased by the Company pursuant to Section 10.12 or 10.15 of the
Indenture, check the appropriate box below: 
  ̈  Section
10.12                         ̈   Section 10.15 
 If you want to elect to have only part of the Note purchased by the Company pursuant to Section 10.12 or Section 10.15 of the Indenture, state
the amount you elect to have purchased: 
 $                         
  

					
	 Date:
	 	  

									
		 		 		 	Your Signature:	 	  

		 		 		 	        (Sign exactly as your name appears on the face of this Note)
					
		 		 		 	 Tax Identification No.:
	 	  

			
	 Signature Guarantee*:
	 	  

  

	*	Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee). 

  

 First Supplemental Indenture 
 A-12 

 [If a Global Note, insert as a separate page — 
 SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE

 The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a
part of another Global Note or Definitive Note for an interest in this Global Note, have been made: 
  

									
	 Date of Exchange
	 	 Amount of
 Decrease in
 Principal Amount
 of
 this Global
Note
	 	 Amount of
 Increase in
 Principal Amount
 of
 this Global
Note
	 	 Principal Amount
 of this Global Note
 Following
Such
 Decrease
 (or
Increase)
	 	 Signature of
 Authorized Officer
 of Trustee or
 Custodian

  

 First Supplemental Indenture 
 A-13 

 [If the Note is subject to a Subsidiary Guarantee, insert as a separate page—

 SUBSIDIARY GUARANTEE NOTATION 
 For value received, each Guarantor (which term includes any successor Person under the Indenture) has, jointly and severally, unconditionally guaranteed, to the extent set forth in the Indenture and subject to the provisions in Indenture
dated as of February 8, 2008 (the “Original Indenture”) by and between Petroleum Development Corporation, a Nevada corporation (the “Company”), and The Bank of New York, a New York banking corporation (the
“Trustee”), as amended and supplemented by the First Supplemental Indenture thereto dated as of February 8, 2008 by and between the Company and the Trustee (the “First Supplemental Indenture”), (a) the due
and punctual payment of the principal of, premium, if any, and interest on, the Notes, whether at maturity, by acceleration, redemption or otherwise, the due and punctual payment of interest on overdue principal of and interest on the Notes, if any,
if lawful, and the due and punctual performance of all other obligations of the Company to the Holders or the Trustee all in accordance with the terms of the Indenture and (b) in case of any extension of time of payment or renewal of any Notes
or any of such other obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise. The obligations of the Guarantors
to the Holders of Notes and to the Trustee pursuant to the Subsidiary Guarantee and the Indenture are expressly set forth in Article Fourteen of the Indenture and reference is hereby made to the Indenture for the precise terms of the Subsidiary
Guarantees, which is subject to release in the circumstances set forth therein. Each Holder of a Note, by accepting the same, agrees to and shall be bound by such provisions. 
 Capitalized terms used but not defined herein have the meanings given to them in the Indenture. 
  

					
	Guarantors:	 	
		
	[NAMES OF GUARANTORS]	 	
			
	By:	 	  
	 	
	Name:	 	  
	 	
	Title:	 	  
	 	]

  

 First Supplemental Indenture 
 A-14 

 EXHIBIT B 
 FORM OF CERTIFICATE OF TRANSFER 
 Petroleum Development Corporation 
 120 Genesis Boulevard 
 Bridgeport, West Virginia 26330 
 The Bank of New York 
 101 Barclay Street, 8W 
 New York, New York 10286 
 Attention: Corporate Trust Division –
Corporate Finance Unit 
 Re: $203,000,000 12% Senior Notes due 2018 
 Reference is hereby made to the Indenture, dated as of February 8, 2008 (the “Original Indenture”), by and between Petroleum
Development Corporation, a Nevada corporation (the “Company”), and The Bank of New York, a New York banking corporation (the “Trustee”), as amended and supplemented by the First Supplemental Indenture thereto, dated
as of February 8, 2008, by and between the Company and the Trustee (the “Supplemental Indenture”). The Original Indenture, as amended and supplemented by the Supplemental Indenture, is referred to herein as the
“Indenture”. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. 
                      (the “Transferor”), owns and proposes to transfer the Note[s] or interest in such Note[s]
specified in Annex A hereto, in the principal amount of $             in such Note[s] or interests (the “Transfer”), to
                     (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the
Transferor hereby certifies that: 
 [CHECK ALL THAT APPLY] 
 1.     ̈    Check if Transferee will take delivery of a beneficial interest in the 144A Global Note or a Restricted Definitive Note
pursuant to Rule 144A. The Transfer is being effected pursuant to and in accordance with Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”), and, accordingly, the Transferor hereby further
certifies that the beneficial interest or Definitive Note is being transferred to a Person that the Transferor reasonably believed and believes is purchasing the beneficial interest or Definitive Note for its own account, or for one or more accounts
with respect to which such Person exercises sole investment discretion, and such Person and each such account is a “qualified institutional buyer” within the meaning of Rule 144A in a transaction meeting the requirements of Rule 144A, and
such Transfer is in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or
Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the 144A Global Note and/or the Restricted Definitive Note and in the Indenture and the Securities Act. 
 2.     ̈    Check if Transferee will take delivery of a beneficial
interest in the Regulation S Global Note or a Restricted Definitive Note pursuant to Regulation S. The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and, accordingly, the
Transferor hereby further certifies that (i) the Transfer is not being made to a Person in the United States and (x) at the time the buy order was originated, the Transferee was outside the United States or such Transferor and any Person
acting on its behalf reasonably believed and believes that the Transferee was outside the United States or (y) the transaction was executed in, on or through the facilities of a designated offshore securities market and neither such Transferor
nor any Person acting on its behalf 

  

 First Supplemental Indenture 
 B-1 

 
knows that the transaction was prearranged with a buyer in the United States, (ii) no directed selling efforts have been made in contravention of the
requirements of Rule 903(b) or Rule 904(b) of Regulation S under the Securities Act, (iii) the transaction is not part of a plan or scheme to evade the registration requirements of the Securities Act and (iv) if the proposed transfer is
being made prior to the expiration of the Restricted Period, the transfer is not being made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Upon consummation of the proposed transfer in accordance
with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Regulation S Global Note and/or the Restricted
Definitive Note and in the Indenture and the Securities Act. 
 3.     ̈    Check and complete if Transferee will take delivery of a beneficial interest in the IAI Global Note or a Restricted Definitive Note pursuant to any provision of the Securities Act other
than Rule 144A or Regulation S. The Transfer is being effected in compliance with the transfer restrictions applicable to beneficial interests in Restricted Global Notes and Restricted Definitive Notes and pursuant to and in accordance with
the Securities Act and any applicable blue sky securities laws of any state of the United States, and accordingly the Transferor hereby further certifies that (check one): 
 (a)     ̈    such Transfer is being effected pursuant to and in
accordance with Rule 144 under the Securities Act; 
 or 
 (b)     ̈    such Transfer is being effected to the Parent, the
Company or a subsidiary thereof; 
 or 
 (c)     ̈    such Transfer is being effected pursuant to an effective registration statement under the Securities Act and in compliance with
the prospectus delivery requirements of the Securities Act; 
 or 
 (d)     ̈    such Transfer is being effected to an
Institutional Accredited Investor and pursuant to an exemption from the registration requirements of the Securities Act other than Rule 144A, Rule 144, Rule 903 or Rule 904, and the Transferor hereby further certifies that it has not engaged in any
general solicitation within the meaning of Regulation D under the Securities Act and the Transfer complies with the transfer restrictions applicable to beneficial interests in a Restricted Global Note or Restricted Definitive Notes and the
requirements of the exemption claimed, which certification is supported by (1) a certificate executed by the Transferee in the form of Exhibit D to the Indenture and (2) if such Transfer is in respect of a principal amount of Notes
at the time of transfer of less than $100,000, an Opinion of Counsel provided by the Transferor or the Transferee (a copy of which the Transferor has attached to this certification), to the effect that such Transfer is in compliance with the
Securities Act. Upon consummation of the proposed transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement
Legend printed on the IAI Global Note and/or the Restricted Definitive Notes and in the Indenture and the Securities Act. 
 4.     ̈    Check if Transferee will take delivery of a beneficial interest in an Unrestricted Global Note or of an Unrestricted Definitive Note.

 (a)     ̈    Check if Transfer is pursuant to Rule 144.
(i) The Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act and in compliance with the transfer 

  

 First Supplemental Indenture 
 B-2 

 
restrictions contained in the Indenture and any applicable blue sky securities laws of any state of the United States and (ii) the restrictions on
transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred
beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture. 
 (b)     ̈    Check if Transfer is pursuant to Regulation S. (i) The
Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any state of the
United States and, in the case of a transfer from a Restricted Global Note or a Restricted Definitive Note, the Transferor hereby further certifies that (a) the Transfer is not being made to a person in the United States and (x) at the
time the buy order was originated, the Transferee was outside the United States or such Transferor and any Person acting on its behalf reasonably believed and believes that the Transferee was outside the United States or (y) the transaction was
executed in, on or through the facilities of a designated offshore securities market and neither such Transferor nor any Person acting on its behalf knows that the transaction was prearranged with a buyer in the United States, (b) no directed
selling efforts have been made in contravention of the requirements of Rule 903(b) or Rule 904(b) of Regulation S under the Securities Act, (c) the transaction is not part of a plan or scheme to evade the registration requirements of the
Securities Act and (d) the transfer is not being made to a U.S. Person or for the account or benefit of a U.S. Person, and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in
order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on
transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture. 
 (c)     ̈    Check if Transfer is pursuant to other exemption. (i) The Transfer is being effected pursuant to and in compliance with an exemption from the
registration requirements of the Securities Act other than Rule 144, Rule 903 or Rule 904 and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any State of the United States and
(ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of
the Indenture, the transferred beneficial interest or Definitive Note will not be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes or Restricted Definitive Notes and in the
Indenture. 
 This certificate and the statements contained herein are made for your benefit and the benefit of the Company. 
  

											
		 		 		 	  

		 		 		 		 	[Insert Name of Transferor]
					
		 		 		 	By:	 	  

		 		 		 	Name:	 	
		 		 		 	Title:	 	
						
	Dated:	 	  
	 		 		 		 	

  

 First Supplemental Indenture 
 B-3 

 ANNEX A TO CERTIFICATE OF TRANSFER 
  

	1.	The Transferor owns and proposes to transfer the following: 

 [CHECK ONE OF (a) OR (b)] 
  

	 	i.	 ̈ a beneficial interest in the: 

  

	 	(i)	 ̈    144A Global Note (CUSIP
[                    ]), or 

  

	 	(ii)	 ̈    Regulation S Global Note (CUSIP
[                    ]), or 

  

	 	(iii)	 ̈    IAI Global Note (CUSIP
                    ); or 

  

	 	(b)	 ̈    a Restricted Definitive Note. 

  

	2.	After the Transfer the Transferee will hold: 

 [CHECK ONE]

  

	 	(a)	 ̈    a beneficial interest in the: 

  

	 	(i)	 ̈    144A Global Note (CUSIP
[                    ]), or 

  

	 	(ii)	 ̈    Regulation S Global Note (CUSIP
[                    ]), or 

  

	 	(iii)	 ̈    IAI Global Note (CUSIP
                    ); or 

  

	 	(iv)	 ̈    Unrestricted Global Note (CUSIP
                    ); or 

  

	 	(b)	 ̈    a Restricted Definitive Note; or 

  

	 	(c)	 ̈    an Unrestricted Definitive Note, 

 in accordance with the terms of the Indenture. 
  

 First Supplemental Indenture 
 B-4 

 EXHIBIT C 
 FORM OF CERTIFICATE OF EXCHANGE 
 Petroleum Development Corporation 
 120 Genesis Boulevard 
 Bridgeport, West Virginia 26330 
 The Bank of New York 
 101 Barclay Street, 8W 
 New York, New York 10286 
 Attention: Corporate Trust Division –
Corporate Finance Unit 
 Re: 12% Senior Notes due 2018 
 (CUSIP                     ) 
 Reference is hereby made to the Indenture, dated as of February 8, 2008 (the “Original Indenture”), by and between Petroleum Development Corporation, a Nevada corporation (the
“Company”), and The Bank of New York, a New York banking corporation (the “Trustee”), as amended and supplemented by the First Supplemental Indenture thereto, dated as of February 8, 2008, by and between the
Company and the Trustee (the “Supplemental Indenture”). The Original Indenture, as amended and supplemented by the Supplemental Indenture, is referred to herein as the “Indenture”. Capitalized terms used but not
defined herein shall have the meanings given to them in the Indenture. 
                     , (the “Owner”) owns and proposes to exchange the Note[s] or interest in such Note[s] specified
herein, in the principal amount of $             in such Note[s] or interests (the “Exchange”). In connection with the Exchange, the Owner hereby certifies that:

 1. Exchange of Restricted Definitive Notes or Beneficial Interests in a Restricted Global Note for Unrestricted Definitive Notes or
Beneficial Interests in an Unrestricted Global Note 
 (a)     ̈    Check if Exchange is from beneficial interest in a Restricted Global Note to beneficial interest in an Unrestricted Global Note. In connection with the Exchange of the Owner’s
beneficial interest in a Restricted Global Note for a beneficial interest in an Unrestricted Global Note in an equal principal amount, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account
without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Global Notes and pursuant to and in accordance with the Securities Act of 1933, as amended (the “Securities
Act”), (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the beneficial interest in an Unrestricted
Global Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States. 
 (b)     ̈    Check if Exchange is from beneficial interest in a Restricted Global Note to Unrestricted Definitive Note. In connection with the Exchange of the
Owner’s beneficial interest in a Restricted Global Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange
has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private
Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States. 

 

 First Supplemental Indenture 
 C-1 

 (c)     ̈    Check if
Exchange is from Restricted Definitive Note to beneficial interest in an Unrestricted Global Note. In connection with the Owner’s Exchange of a Restricted Definitive Note for a beneficial interest in an Unrestricted Global Note, the Owner
hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to Restricted Definitive Notes
and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the
beneficial interest is being acquired in compliance with any applicable blue sky securities laws of any state of the United States. 
 (d)     ̈    Check if Exchange is from Restricted Definitive Note to Unrestricted Definitive Note. In connection with the Owner’s Exchange of a Restricted
Definitive Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Unrestricted Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance
with the transfer restrictions applicable to Restricted Definitive Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required
in order to maintain compliance with the Securities Act and (iv) the Unrestricted Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States. 
 2. Exchange of Restricted Definitive Notes or Beneficial Interests in Restricted Global Notes for Restricted Definitive Notes or Beneficial
Interests in Restricted Global Notes 
 (a)     ̈    Check if Exchange is from beneficial interest in a Restricted Global Note to Restricted Definitive Note. In connection with the Exchange of the Owner’s beneficial interest in a
Restricted Global Note for a Restricted Definitive Note with an equal principal amount, the Owner hereby certifies that the Restricted Definitive Note is being acquired for the Owner’s own account without transfer. Upon consummation of the
proposed Exchange in accordance with the terms of the Indenture, the Restricted Definitive Note issued will continue to be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Definitive Note
and in the Indenture and the Securities Act. 
 (b)     ̈    Check if Exchange is from Restricted Definitive Note to beneficial interest in a Restricted Global Note. In connection with the Exchange of the Owner’s Restricted Definitive Note for
a beneficial interest in the [CHECK ONE]  ̈ 144A Global Note,  ̈ Regulation S Global Note,  ̈ IAI Global Note with an equal principal amount, the
Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer and (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted
Global Notes and pursuant to and in accordance with the Securities Act, and in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Exchange in accordance with the terms of the
Indenture, the beneficial interest issued will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the relevant Restricted Global Note and in the Indenture and the Securities Act. 
  

 First Supplemental Indenture 
 C-2 

 This certificate and the statements contained herein are made for your benefit and the benefit of the
Company. 
  

			
	  

	[Insert Name of Transferor]
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	Dated:	 	  

  

 First Supplemental Indenture 
 C-3 

 EXHIBIT D 
 FORM OF CERTIFICATE FROM 
 ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR 
 Petroleum Development Corporation 
 120 Genesis Boulevard 
 Bridgeport, West Virginia 26330 
 The Bank of New York 
 101 Barclay Street, 8W 
 New York, New York 10286 
 Attention: Corporate Trust Division – Corporate Finance Unit 
 Re: 12% Senior Notes due 2018 
 (CUSIP
                    ) 
 Reference
is hereby made to the Indenture, dated as of February 8, 2008 (the “Original Indenture”), by and between Petroleum Development Corporation, a Nevada corporation (the “Company”), and The Bank of New York, a New
York banking corporation (the “Trustee”), as amended and supplemented by the First Supplemental Indenture thereto, dated as of February 8, 2008, by and between the Company and the Trustee (the “Supplemental
Indenture”). The Original Indenture, as amended and supplemented by the Supplemental Indenture, is referred to herein as the “Indenture”. Capitalized terms used but not defined herein shall have the meanings given to them
in the Indenture. 
 In connection with our proposed purchase of
$             aggregate principal amount of: 
 (a)     ̈    a beneficial interest in a Global Note, or 
 (b)     ̈    a Definitive Note, 
 we confirm that:

 1. We understand that any subsequent transfer of the Notes or any interest therein is subject to certain restrictions and conditions set
forth in the Indenture and the undersigned agrees to be bound by, and not to resell, pledge or otherwise transfer the Notes or any interest therein except in compliance with, such restrictions and conditions and the Securities Act of 1933, as
amended (the “Securities Act”). 
 2. We understand that the offer and sale of the Notes have not been registered under the
Securities Act, and that the Notes and any interest therein may not be offered or sold except as permitted in the following sentence. We agree, on our own behalf and on behalf of any accounts for which we are acting as hereinafter stated, that if we
should sell the Notes or any interest therein, we will do so only (A) to the Company or any subsidiary thereof, (B) in accordance with Rule 144A under the Securities Act to a “qualified institutional buyer” (as defined therein),
(C) to an institutional “accredited investor” (as defined below) that, prior to such transfer, furnishes (or has furnished on its behalf by a U.S. broker-dealer) to you and to the Company a signed letter substantially in the form of
this letter and, if such transfer is in respect of a principal amount of Notes, at the time of transfer of less than $100,000, an Opinion of Counsel in form reasonably acceptable to the Company to the effect that such transfer is in compliance with
the Securities Act, (D) outside the United States in accordance with Rule 904 of Regulation S under the Securities Act, (E) pursuant to the provisions of Rule 144(k) under the Securities Act or (F) pursuant to an effective
registration statement under the Securities Act, and we further agree to provide to any Person purchasing the Definitive Note or beneficial interest in a Global Note from us in a transaction meeting the requirements of clauses (A) through
(E) of this paragraph a notice advising such purchaser that resales thereof are restricted as stated herein. 
  

 First Supplemental Indenture 
 D-1 

 3. We understand that, on any proposed resale of the Notes or beneficial interest therein, we will be
required to furnish to you and the Company such certifications, legal opinions and other information as you and the Company may reasonably require to confirm that the proposed sale complies with the foregoing restrictions. We further understand that
the Notes purchased by us will bear a legend to the foregoing effect. 
 4. We are an institutional “accredited investor” (as
defined in Rule 501(a)(1), (2), (3) or (7) of Regulation D under the Securities Act) and have such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of our investment in the
Notes, and we and any accounts for which we are acting are each able to bear the economic risk of our or its investment. 
 5. We are
acquiring the Notes or beneficial interest therein purchased by us for our own account or for one or more accounts (each of which is an institutional “accredited investor”) as to each of which we exercise sole investment discretion.

 The Trustee and the Company are entitled to rely upon this letter and are irrevocably authorized to produce this letter or a copy hereof
to any interested party in any administrative or legal proceedings or official inquiry with respect to the matters covered hereby. 
  

			
	  

	[Insert Name of Accredited Investor]
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	Dated:	 	  

  

 First Supplemental Indenture 
 D-2 

 EXHIBIT E 
 [FORM OF SUPPLEMENTAL INDENTURE 
 TO BE DELIVERED BY SUBSEQUENT GUARANTORS] 
 SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of
                    , 200  , among
                     (the “Guaranteeing Subsidiary”), a subsidiary of Petroleum Development Corporation, a Nevada corporation
(or its permitted successor, the “Company”), the Company, the existing Guarantors (as defined in the Indenture referred to herein), if any, and The Bank of New York, a New York banking corporation, as trustee under the Indenture
referred to below (or its permitted successor, the “Trustee”). 
 W I T N E S S E T H 
 WHEREAS, the Company has heretofore executed and delivered to the Trustee an Indenture, dated as of February 8, 2008, by and between the Company and
the Trustee, as amended and supplemented by the First Supplemental Indenture thereto, dated as of February 8, 2008, by and between the Company and the Trustee (the “Indenture”), providing for the issuance of the Company’s
12% Senior Notes due 2018 (the “Notes”); 
 WHEREAS, the Indenture provides that under certain circumstances the
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall become a Guarantor (as defined in the Indenture); and 
 WHEREAS, pursuant to Section 9.1 of the Indenture, the Trustee is authorized to execute and deliver this First Supplemental Indenture. 

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the
Guaranteeing Subsidiary, the Company, the other Guarantors (if any) and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 
 1. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the
Indenture. 
 2. AGREEMENT TO GUARANTEE. The Guaranteeing Subsidiary hereby agrees to provide an
unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture including but not limited to Article Fourteen thereof. 
 3. EXECUTION AND DELIVERY. The Subsidiary Guarantees shall remain in full force and effect notwithstanding any failure to endorse on each Note a notation of such Subsidiary
Guarantee. 
 4. NO RECOURSE AGAINST OTHERS. No past, present or future director,
officer, employee, incorporator, member, partner or stockholder of the Guaranteeing Subsidiary, as such, shall have any liability for any obligations of the Company or any Guaranteeing Subsidiary under the Notes, any Subsidiary Guarantees, the
Indenture or this First Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of the Notes by accepting a Note waives and releases all such liability. The waiver and release
are part of the consideration for issuance of the Notes. 
 5. NEW YORK LAW TO GOVERN. THE LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE
USED TO CONSTRUE AND ENFORCE THIS FIRST SUPPLEMENTAL INDENTURE. 
  

 First Supplemental Indenture 
 E-1 

 6. COUNTERPARTS. The parties may sign any number of copies of this First Supplemental
Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 
 7. EFFECT
OF HEADINGS. The Section headings herein are for convenience only and shall not affect the construction hereof. 
 8. THE TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this First Supplemental Indenture or for or in respect of the recitals contained
herein, all of which recitals are made solely by the Guaranteeing Subsidiary and the Company. 
 [SIGNATURE PAGE FOLLOWS] 
  

 First Supplemental Indenture 
 E-2 

 IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed
and attested, all as of the date first above written. 
 Dated:
                    , 20     
  

			
	[GUARANTEEING SUBSIDIARY]
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	[COMPANY]
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	[EXISTING GUARANTORS, IF ANY]
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	 [TRUSTEE],
 as
Trustee

		
	By:	 	  

		 	Authorized Signatory

  

 First Supplemental Indenture 
 E-3Registration Rights Agreement

 Exhibit 10.1 
  
  
 REGISTRATION RIGHTS AGREEMENT 
 by and among 
 PETROLEUM DEVELOPMENT
CORPORATION 
 and 
 MORGAN
STANLEY & CO. INCORPORATED, 
 J.P. MORGAN SECURITIES INC., 
 BNP PARIBAS SECURITIES CORP., 
 and 
 WACHOVIA CAPITAL MARKETS, LLC 
 Dated as of
February 8, 2008 
  
  

 This Registration Rights Agreement (this “Agreement”) is made and entered into as of
February 8, 2008, by and among Petroleum Development Corporation, a Nevada corporation (the “Company”), and Morgan Stanley & Co. Incorporated, J.P. Morgan Securities Inc., BNP Paribas Securities Corp. and Wachovia
Capital Markets, LLC (collectively, the “Initial Purchasers”), which have agreed to purchase the Company’s 12% Senior Notes due 2018 (the “Initial Notes”) pursuant to the Purchase Agreement (as defined below).

 This Agreement is made pursuant to the Purchase Agreement (the “Purchase Agreement”), dated February 1, 2008,
by and among the Company and the Initial Purchasers. In order to induce the Initial Purchasers to purchase the Initial Notes, the Company has agreed to provide, subject to the conditions herein, the registration rights set forth in this Agreement.
The execution and delivery of this Agreement is a condition to the obligations of the Initial Purchasers set forth in the Purchase Agreement. Capitalized terms used herein and not otherwise defined shall have the meaning assigned to them in the
Indenture, dated February 8, 2008, as supplemented by the First Supplemental Indenture thereto, dated February 8, 2008, between the Company and The Bank of New York, as Trustee, relating to the Notes (together, the
“Indenture”). 
 The parties hereby agree as follows: 
 Section 1. Definitions. As used in this Agreement, the following capitalized terms shall have the following meanings: 
 “Affiliate” shall have the meaning set forth in Rule 144 of the Securities Act. 
 “Agreement” shall have the meaning set forth in the preamble hereof. 
 “Broker-Dealer” shall mean any broker or dealer registered under the Exchange Act. 
 “Business Day” shall mean any day other than a Legal Holiday. 
 “Closing Date” shall mean the date hereof. 
 “Commission” shall mean the Securities and Exchange Commission. 
 “Company” shall have the meaning set forth in the preamble hereof. 
 “Consummate” shall mean, and
an Exchange Offer shall be deemed Consummated for purposes of this Agreement upon, the occurrence of (a) the filing and effectiveness under the Securities Act of the Exchange Offer Registration Statement relating to the Exchange Notes to be
issued in the Exchange Offer, (b) the maintenance of such Exchange Offer Registration Statement continuously effective and the keeping of the Exchange Offer open for a period not less than the period required pursuant to Section 2(b)
hereof and (c) the delivery by the Company to the Registrar under the Indenture of Exchange Notes in the same aggregate principal amount as the aggregate principal amount of Initial Notes tendered by Holders thereof pursuant to the Exchange
Offer and not withdrawn. 
  

 “Consummation Deadline” shall have the meaning set forth in Section 2(a) hereof.

 “Effectiveness Target Date” shall mean the Exchange Effectiveness Deadline or the Shelf Effectiveness Deadline, as
applicable. 
 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended. 
 “Exchange Effectiveness Deadline” shall have the meaning set forth in Section 2(a) hereof. 
 “Exchange Offer” shall mean the exchange and issuance by the Company, pursuant to Section 2 hereof, of a principal amount of
Exchange Notes (which shall be registered pursuant to the Exchange Offer Registration Statement) equal to the outstanding principal amount of Initial Notes that are tendered by such Holders in connection with such exchange and issuance. 

“Exchange Offer Registration Statement” shall mean the Registration Statement relating to the Exchange Offer, including the related
Prospectus. 
 “Exchange Notes” shall mean the Company’s 12% Senior Notes due 2018 to be issued pursuant to the
Indenture (a) in the Exchange Offer or (b) as contemplated by Section 3 hereof. 
 “Holder” shall mean any
Person whenever such Person owns Transfer Restricted Securities. 
 “Indemnified Party” shall have the meaning set forth in
Section 7(c) hereof. 
 “Indemnifying Party” shall have the meaning set forth in Section 7(c) hereof. 

“Indenture” shall have the meaning set forth in the preamble hereof. 
 “Initial Notes” shall have the meaning set forth in the preamble hereof. 
 “Initial Purchasers” shall have the meaning set forth in the preamble hereof. 
 “Legal Holiday” shall mean a Saturday, a Sunday or a day on which banking institutions in the City of New York or at a place of payment
are authorized by law, regulation or executive order to remain closed. 
 “Notes” shall mean the Initial Notes and the
Exchange Notes. 
 “Person” shall mean any individual, corporation, partnership, joint venture, association, joint stock
company, trust, unincorporated organization, limited liability company, government or other agency or political subdivision thereof or any other entity.  
 “Prospectus” shall mean the prospectus included in a Registration Statement at the time such Registration Statement is declared effective, as amended or supplemented by any 

  

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prospectus supplement and by all other amendments thereto, including post-effective amendments, and all material incorporated by reference into such
Prospectus (including, without limitation, any “issuer free writing prospectus” as defined in Rule 433 under the Securities Act). 
 “Purchase Agreement” shall have the meaning set forth in the preamble hereof. 
 “Recommencement
Date” shall have the meaning set forth in Section 5(d) hereof. 
 “Registration Default” shall have the
meaning set forth in Section 4 hereof. 
 “Registration Statement” shall mean any registration statement of the Company
relating to (a) an offering of Exchange Notes pursuant to an Exchange Offer or (b) the registration for resale of Transfer Restricted Securities pursuant to the Shelf Registration Statement, in each case, (i) that is filed pursuant to
the provisions of this Agreement and (ii) including the Prospectus included therein, all amendments and supplements thereto (including post-effective amendments) and all exhibits and material incorporated by reference therein. 
 “Regulation S” shall mean Regulation S promulgated under the Securities Act. 
 “Rule 144” shall mean Rule 144 promulgated under the Securities Act. 
 “Securities Act” shall mean the Securities Act of 1933, as amended. 
 “Shelf Effectiveness Deadline” shall have the meaning set forth in Section 3(a) hereof. 
 “Shelf Filing Deadline” shall have the meaning set forth in Section 3(a) hereof. 
 “Shelf Registration Statement” shall have the meaning set forth in Section 3 hereof. 
 “Suspension Notice” shall have the meaning set forth in Section 5(d) hereof. 
 “TIA” shall mean the Trust Indenture Act of 1939 as in effect on the date of the Indenture. 
 “Transfer Restricted Securities” means each Initial Note until the earliest to occur of: (i) the date on which such Initial Note
has been exchanged by a Person other than a Broker-Dealer for a Exchange Note in the Exchange Offer; (ii) following the exchange by a Broker-Dealer in the Exchange Offer of a Initial Note for a Exchange Note, the date on which such Exchange
Note is sold to a purchaser who receives from such Broker-Dealer on or prior to the date of such sale a copy of the Prospectus contained in the Exchange Offer Registration Statement; (iii) the date on which such Initial Note has been
effectively registered under the Securities Act and disposed of in accordance with the Shelf Registration Statement; or (iv) the date on which such Initial Note is distributed to the public pursuant to Rule 144 under the Securities Act.

  

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 Section 2. Registered Exchange Offer.
(a) The Company shall (i) cause the Exchange Offer Registration Statement to be filed with the Commission and use its commercially reasonable efforts to cause such Exchange Offer Registration Statement to become effective on or prior to
365 days after the Closing Date (such 365th day being the “Exchange Effectiveness Deadline”), (ii) in connection therewith,
(A) file all pre-effective amendments to such Exchange Offer Registration Statement as may be necessary in order to cause it to become effective, (B) file, if applicable, a post-effective amendment to such Exchange Offer Registration
Statement pursuant to Rule 430A under the Securities Act and (C) cause all necessary filings, if any, in connection with the registration and qualification of the Exchange Notes to be made under the Blue Sky laws of such jurisdictions as are
necessary to permit Consummation of the Exchange Offer, and (iii) unless the Exchange Offer shall not be permitted by applicable federal law or Commission policy (after the procedures set forth in Section 6(a)(i) have been complied with)
commence the Exchange Offer and use its commercially reasonable efforts to Consummate the Exchange Offer on or prior to the 30th Business Day, or longer if required by the federal securities laws, after such Exchange Offer Registration Statement has
been declared effective (such 30th Business Day being the “Consummation Deadline”). The Exchange Offer shall be on the appropriate form permitting (x) registration of the offer and issuance of the Exchange Notes to be offered
in exchange for the Initial Notes that are Transfer Restricted Securities and (y) resales of Exchange Notes by Broker-Dealers that tendered into the Exchange Offer Initial Notes that such Broker-Dealer acquired for its own account as a result
of market-making activities or other trading activities (other than Initial Notes acquired directly from the Company or any of its Affiliates) as contemplated by Section 2(c) hereof. 
 (b) The Company shall use its commercially reasonable efforts to cause the Exchange Offer Registration Statement to be effective continuously, and shall
keep the Exchange Offer open for a period of not less than the minimum period required under applicable federal and state securities laws to Consummate the Exchange Offer; provided, however, that in no event shall such period be less
than 20 Business Days. The Company shall cause the Exchange Offer to comply with all applicable federal and state securities laws. No securities other than the Exchange Notes shall be included in the Exchange Offer Registration Statement.

 (c) The Company shall include a “Plan of Distribution” section in the Prospectus contained in the Exchange Offer Registration
Statement and indicate therein that any Broker-Dealer who holds Transfer Restricted Securities that were acquired for the account of such Broker-Dealer as a result of market-making activities or other trading activities (other than Initial Notes
acquired directly from the Company or any of its Affiliates) may exchange such Transfer Restricted Securities pursuant to the Exchange Offer. Such “Plan of Distribution” section shall also contain all other information with respect to such
sales by such Broker-Dealers that the Commission may require in order to permit such sales pursuant thereto, but such “Plan of Distribution” shall not name any such Broker-Dealer or disclose the amount of Transfer Restricted Securities
held by any such Broker-Dealer, except to the extent required by the Commission as a result of a change in policy, rules or regulations after the date of this Agreement. 
 Because such Broker-Dealer may be deemed to be an “underwriter” within the meaning of the Securities Act and must, therefore, deliver a prospectus meeting the requirements of the Securities Act in connection
with the initial sale of any Exchange Notes received by such 

  

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Broker-Dealer in the Exchange Offer, the Company shall permit the use of the Prospectus contained in the Exchange Offer Registration Statement by such
Broker-Dealer to satisfy such prospectus delivery requirement. To the extent necessary to ensure that the Prospectus contained in the Exchange Offer Registration Statement is available for sales of Exchange Notes by Broker-Dealers, the Company
agrees to use its commercially reasonable efforts to keep the Exchange Offer Registration Statement continuously effective, supplemented, amended and current as required by and subject to the provisions of Section 5(a) and (c) hereof and
in conformity with the requirements of this Agreement, the Securities Act and the policies, rules and regulations of the Commission as announced from time to time, for a period of 180 days from the date on which the Exchange Offer is Consummated or
such shorter period as will terminate when all Transfer Restricted Securities covered by such Registration Statement have been sold pursuant thereto. The Company shall provide sufficient copies of the latest version of such Prospectus to such
Broker-Dealers, promptly upon request, and in no event later than two Business Days after such request, at any time during such period. 
 Section 3. Shelf Registration. (a) Shelf Registration. If (i) the Company
is not (A) required to file the Exchange Offer Registration Statement or (B) permitted to Consummate the Exchange Offer because the Exchange Offer is not permitted by applicable law or Commission policy or (ii) any Holder notifies the
Company prior to the 20th Business Day following the Consummation of the Exchange Offer that (A) it is prohibited by law or Commission policy from
participating in the Exchange Offer; or (B) it may not resell the Exchange Notes acquired by it in the Exchange Offer to the public without delivering a prospectus and the Prospectus contained in the Exchange Offer Registration Statement is not
appropriate or available for such resales by such Holder; or (C) it is a Broker-Dealer and holds Initial Notes acquired directly from the Company or any of its Affiliates, then the Company shall: 
 (x) use its commercially reasonable efforts to file on or prior to 30 days after the earlier of (i) the date on which the Company
determines that the Exchange Offer Registration Statement cannot be filed as a result of clause (a)(i) of this Section 3 and (ii) the date on which the Company receives the notice specified in clause (a)(ii) of this Section 3 (such
earlier date, the “Shelf Filing Deadline”), a shelf registration statement pursuant to Rule 415 under the Securities Act (which may be an amendment to the Exchange Offer Registration Statement (the “Shelf Registration
Statement”)), relating to all Transfer Restricted Securities; and 
 (y) use its commercially reasonable efforts to cause such Shelf Registration Statement to become effective on or prior to 90 days after the Shelf Filing Deadline (such 90th day the “Shelf Effectiveness Deadline”). 
 If, after the Company has filed an
Exchange Offer Registration Statement that satisfies the requirements of Section 2(a) hereof, the Company is required to file and make effective a Shelf Registration Statement solely because the Exchange Offer is not permitted under applicable
law or Commission policy, then the filing of the Exchange Offer Registration Statement shall be deemed to satisfy the requirements of clause (x) of this Section 3(a); provided, that in such event, the Company shall remain obligated
to meet the Shelf Effectiveness Deadline set forth in clause (y) of this Section 3(a). 
  

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 To the extent necessary to ensure that the Shelf Registration Statement is available for sales of
Transfer Restricted Securities by the Holders thereof entitled to the benefit of this Section 3(a) and the other securities required to be registered therein pursuant to Section 5(b)(ii) hereof, the Company shall use its commercially
reasonable efforts to keep any Shelf Registration Statement required by this Section 3(a) continuously effective, supplemented, amended and current as required by and subject to the provisions of Sections 5(b) and (c) hereof and in
conformity with the requirements of this Agreement, the Securities Act and the policies, rules and regulations of the Commission as announced from time to time, until the expiration of the period referred to in Rule 144(k) (as extended pursuant to
Section 5(c)(i) hereof) following the Closing Date, or such shorter period as will terminate when all Transfer Restricted Securities covered by such Shelf Registration Statement have been sold pursuant thereto. 
 (b) Provision by Holders of Certain Information in Connection with the Shelf Registration Statement. No Holder may include any of its Transfer
Restricted Securities in any Shelf Registration Statement pursuant to this Agreement unless and until such Holder furnishes to the Company in writing, within 20 days after receipt of a request therefor, the information specified in Item 507 or
508 of Regulation S-K, as applicable, of the Securities Act for use in connection with any Shelf Registration Statement or Prospectus or preliminary Prospectus included therein. No Holder shall be entitled to liquidated damages pursuant to
Section 4 hereof unless and until such Holder shall have provided all such information. Each Holder agrees to promptly furnish additional information required to be disclosed in order to make the information previously furnished to the Company
by such Holder not materially misleading. 
 Section 4. Liquidated Damages. If (a) any Registration Statement required by this
Agreement is not filed with the Commission on or prior to the date specified for such filing, if any, (b) any such Registration Statement has not been declared effective by the Commission on or prior to the applicable Effectiveness Target Date,
(c) the Exchange Offer has not been Consummated on or prior to the Consummation Deadline or (d) the Shelf Registration Statement or the Exchange Offer Registration Statement is filed and declared effective but thereafter ceases to be
effective or usable for its intended purpose without being succeeded within three days by a post-effective amendment to such Registration Statement that cures such failure and that is itself declared effective within five days of filing such
post-effective amendment to such Registration Statement (each such event referred to in clauses (a) through (d) above, a “Registration Default”), then the Company hereby agrees to pay to each Holder of Transfer Restricted
Securities affected thereby liquidated damages in an amount equal to $0.05 per week per $1,000 principal amount of Transfer Restricted Securities held by such Holder with respect to the first 90-day period immediately following the occurrence of the
first Registration Default. The amount of the liquidated damages shall increase by an additional $0.05 per week per $1,000 principal amount of Transfer Restricted Securities held by such Holder with respect to each subsequent 90-day period until all
Registration Defaults have been cured, up to a maximum amount of liquidated damages for all Registration Defaults of $0.20 per week per $1,000 principal amount of Transfer Restricted Securities held by such Holder; provided, that the Company
shall in no event be required to pay liquidated damages for more than one Registration Default at any given time. Notwithstanding anything to the contrary set forth herein, (i) upon filing of the Exchange Offer Registration Statement (and/or,
if applicable, the Shelf Registration Statement), in the case of clause (a) of this Section 4, (ii) upon the effectiveness of the Exchange Offer Registration Statement (and/or, if applicable, the Shelf Registration Statement), in the
case 
  

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of clause (b) of this Section 4, (iii) upon Consummation of the Exchange Offer, in the case of clause (c) of this Section 4, or
(iv) upon the filing of a post- effective amendment to the Registration Statement or an additional Registration Statement that causes the Exchange Offer Registration Statement (and/or, if applicable, the Shelf Registration Statement) to again
be declared effective or made usable in the case of clause (d) of this Section 4, the liquidated damages payable with respect to the Transfer Restricted Securities as a result of such clauses (a), (b), (c) or (d) of this
Section 4, as applicable, shall cease. 
 All accrued liquidated damages will be paid by the Company to the Holders entitled thereto, in
the manner provided for the payment of interest in the Indenture, on the next scheduled Interest Payment Date (as such date is defined in the Indenture), as more fully set forth in the Indenture and the Notes. Notwithstanding the fact that any Notes
for which liquidated damages are due cease to be Transfer Restricted Securities, all obligations of the Company to pay liquidated damages with respect to Notes shall survive until such time as such obligations with respect to the Notes have been
satisfied in full. 
 Section 5. Registration Procedures. (a) Exchange Offer Registration Statement. In connection with
the Exchange Offer Registration Statement, the Company shall (i) comply with all applicable provisions of Section 5(c) hereof, (ii) use its commercially reasonable efforts to effect such exchange and to permit the resale of Exchange
Notes by Broker-Dealers that tendered in the Exchange Offer Initial Notes that such Broker-Dealer acquired for its own account as a result of its market-making activities or other trading activities (other than Initial Notes acquired directly from
the Company or any of its Affiliates) being sold in accordance with the intended method or methods of distribution thereof, and (iii) comply with all of the following provisions: 
 (A) If, following the date hereof there has been announced a change in Commission policy with respect to exchange offers such as the
Exchange Offer, that in the reasonable opinion of counsel to the Company raises a substantial question as to whether the Exchange Offer is permitted by applicable federal law, the Company hereby agrees to seek a no-action letter or other favorable
decision from the Commission allowing the Company to Consummate an Exchange Offer for such Transfer Restricted Securities. The Company hereby agrees to pursue the issuance of such a decision to the Commission staff level. In connection with the
foregoing, the Company hereby agrees to take all such other actions as may be requested by the Commission or otherwise required in connection with the issuance of such decision, including without limitation (1) participating in telephonic
conferences with the Commission, (2) delivering to the Commission staff an analysis prepared by counsel to the Company setting forth the legal bases, if any, upon which such counsel has concluded that such an Exchange Offer should be permitted
and (3) diligently pursuing a resolution (which need not be favorable) by the Commission staff. 
 (B) As a condition to
its participation in the Exchange Offer, each Holder of Transfer Restricted Securities (including, without limitation, any Holder who is a Broker-Dealer) shall furnish, upon the request of the Company, prior to the Consummation of the Exchange
Offer, a written representation to the Company (which may be contained in the letter of transmittal contemplated by the Exchange Offer 

  

 7 

 
Registration Statement) to the effect that (1) it is not an Affiliate of the Company, (2) it is not engaged in, and does not intend to engage in,
and has no arrangement or understanding with any Person to participate in, a distribution of the Exchange Notes to be issued in the Exchange Offer and (3) it is acquiring the Exchange Notes in its ordinary course of business. As a condition to
its participation in the Exchange Offer, each Holder using the Exchange Offer to participate in a distribution of the Exchange Notes shall acknowledge and agree that, if the resales are of Exchange Notes obtained by such Holder in exchange for
Initial Notes acquired directly from the Company or an Affiliate thereof, it (x) could not, under Commission policy as in effect on the date of this Agreement, rely on the position of the Commission enunciated in Morgan Stanley and Co.,
Inc. (available June 5, 1991) and Exxon Capital Holdings Corporation (available May 13, 1988), as interpreted in the Commission’s letter to Shearman & Sterling dated July 2, 1993, and similar no-action
letters (including, if applicable, any no-action letter obtained pursuant to clause (a)(iii)(A) of this Section 5), and (y) must comply with the registration and prospectus delivery requirements of the Securities Act in connection with a
secondary resale transaction and that such a secondary resale transaction must be covered by an effective registration statement containing the selling security holder information required by Item 507 or 508, as applicable, of Regulation S-K.

 (C) Prior to effectiveness of the Exchange Offer Registration Statement, the Company shall provide a supplemental letter
to the Commission (1) stating that the Company is registering the Exchange Offer in reliance on the position of the Commission enunciated in Exxon Capital Holdings Corporation (available May 13, 1988), Morgan Stanley and Co.,
Inc. (available June 5, 1991) as interpreted in the Commission’s letter to Shearman & Sterling dated July 2, 1993, and, if applicable, any no-action letter obtained pursuant to clause (a)(iii)(A) of this
Section 5, (2) including a representation that the Company has not entered into any arrangement or understanding with any Person to distribute the Exchange Notes to be received in the Exchange Offer and that, to the best of the
Company’s information and belief, each Holder participating in the Exchange Offer is acquiring the Exchange Notes in its ordinary course of business and has no arrangement or understanding with any Person to participate in the distribution of
Exchange Notes received in the Exchange Offer and (3) any other undertaking or representation required by the Commission as set forth in any no-action letter obtained pursuant to clause (a)(iii)(A) of this Section 5, if applicable.

 (b) Shelf Registration Statement. In connection with the Shelf Registration Statement, the Company shall: 
 (i) comply with all the provisions of Section 5(c) hereof and use its commercially reasonable efforts to effect such registration to
permit the sale of the Transfer Restricted Securities being sold in accordance with the intended method or methods of distribution thereof (as indicated in the information furnished to the Company pursuant to Section 3(b) hereof), and pursuant
thereto the Company shall prepare and file with the Commission a Registration Statement relating to the registration on any appropriate form under the Securities Act, which form shall be available for the sale of the Transfer Restricted Securities
in accordance with the intended method or methods of distribution thereof within the time periods and otherwise in accordance with the provisions hereof; and 
  

 8 

 (ii) issue, upon the request of any Holder or purchaser of Initial Notes covered by any
Shelf Registration Statement contemplated by this Agreement, Exchange Notes having an aggregate principal amount equal to the aggregate principal amount of Initial Notes sold pursuant to the Shelf Registration Statement and surrendered to the
Company for cancellation; the Company shall register the Exchange Notes on the Shelf Registration Statement for this purpose and issue the Exchange Notes to the purchaser(s) of securities subject to the Shelf Registration Statement in the names as
such purchaser(s) shall designate. 
 (iii) advise each Holder and the underwriter(s), if any, and, if requested by such
Holder, to confirm such advice in writing, (A) when the Prospectus or any Prospectus supplement or post-effective amendment has been filed, and, with respect to any Shelf Registration Statement or any post-effective amendment thereto, when the
same has become effective, (B) of any request by the Commission for amendments to the Shelf Registration Statement or amendments or supplements to the Prospectus or for additional information relating thereto, (C) of the issuance by the
Commission of any stop order suspending the effectiveness of the Shelf Registration Statement under the Securities Act or of the suspension by any state securities commission of the qualification of the Transfer Restricted Securities for offering or
sale in any jurisdiction, or the initiation of any proceeding for any of the preceding purposes, and (D) of the existence of any fact or the happening of any event that makes any statement of a material fact made in the Shelf Registration
Statement, the Prospectus, any amendment or supplement thereto or any document incorporated by reference therein untrue, or that requires the making of any additions to or changes in the Shelf Registration Statement in order to make the statements
therein not misleading, or that requires the making of any additions to or changes in the Prospectus in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; 
 (iv) furnish to each Holder, in connection with such sale, if any, before filing with the Commission, copies of any Shelf Registration
Statement or any Prospectus included therein or any amendments or supplements to any such Shelf Registration Statement or Prospectus (including all documents incorporated by reference after the initial filing of such Registration Statement), which
documents shall be subject to the review and comment of such Holders in connection with such sale, if any, for a period of at least five Business Days, and the Company shall not file any such Shelf Registration Statement or Prospectus or any
amendment or supplement to any such Shelf Registration Statement or Prospectus (including all such documents incorporated by reference) to which such Holders shall reasonably object within five Business Days after such Holders’ receipt thereof.
A Holder shall be deemed to have reasonably objected to such filing if such Shelf Registration Statement, amendment, Prospectus or supplement, as applicable, as proposed to be filed, contains an untrue statement of a material fact or omits to state
any material fact necessary to make the statements therein not misleading or fails to comply with the applicable requirements of the Securities Act; 
  

 9 

 (v) promptly prior to the filing of any document that is to be incorporated by reference
into a Shelf Registration Statement or Prospectus, provide copies of such document to each Holder who so requests in connection with such sale, if any, make the Company’s representatives available for discussion of such document and other
customary due diligence matters, and include such information in such document prior to the filing thereof as such Holders may reasonably request; 
 (vi) make available, at reasonable times, for inspection by each Holder and any attorney or accountant retained by such Holders, all financial and other records, pertinent corporate documents of the Company and cause
the Company’s officers, directors and employees to supply all information reasonably requested by any such Holder, attorney or accountant in connection with such Shelf Registration Statement or any post-effective amendment thereto subsequent to
the filing thereof and prior to its effectiveness; provided, however, that such Persons first agree in writing with the Company that any information that is reasonably and in good faith designated by the Company in writing as
confidential at the time of delivery of such information will be kept confidential by such Persons, unless (A) disclosure of such information is required by court or administrative order or is necessary to respond to inquires of regulatory
authorities, (B) disclosure of such information is required by law (including any disclosure requirements pursuant to federal securities laws in connection with the filing of such Shelf Registration Statement or the use of any Prospectus),
(C) such information becomes generally available to the public other than as a result of a disclosure or failure to safeguard such information by such Person or (D) such information becomes available to such Person from a source other than
the Company and its subsidiaries and such source is not known, after reasonable inquiry, by such Person to be bound by a confidentiality agreement; 
 (vii) if requested by any Holders in connection with such sale, promptly include in any Shelf Registration Statement or Prospectus, pursuant to a supplement or post-effective amendment if necessary, such information
as such Holders may reasonably request to have included therein, including, without limitation, information relating to the “Plan of Distribution” of the Transfer Restricted Securities; and make all required filings of such Prospectus
supplement or post-effective amendment as soon as practicable after the Company is notified of the matters to be included in such Prospectus supplement or post-effective amendment; 
 (viii) furnish to each Holder in connection with such sale without charge, at least one copy of the Shelf Registration Statement, as
first filed with the Commission, and of each amendment thereto, including all documents incorporated by reference therein and all exhibits, including exhibits incorporated therein by reference, if so requested by such Holder (other than portions of
agreements and other documents that are granted confidential treatment by the Commission); 
 (ix) upon the request of any
Holder, enter into such agreements (including underwriting agreements) and make such representations and warranties and take all such other actions in connection therewith in order to expedite or facilitate the disposition of the Transfer Restricted
Securities pursuant to any Shelf Registration Statement contemplated by this Agreement as may be reasonably requested by any Holder in 

  

 10 

 
connection with any sale or resale pursuant to any Shelf Registration Statement. In such connection, the Company shall: 
 (A) upon request of any Holder, to use its commercially reasonable efforts to cause to be furnished to each Holder, upon the
effectiveness of the Shelf Registration Statement: 
 (1) a certificate, dated such date, signed on behalf of the Company by
(x) the President or any Vice President of the Company and (y) a principal financial or accounting officer of the Company, confirming, as of the date thereof, the matters set forth in Sections 5(a) and (b) of the Purchase Agreement
and such other similar matters as such Holders may reasonably request; 
 (2) an opinion, dated the date of effectiveness of
the Shelf Registration Statement, of counsel for the Company in customary form covering matters similar to those set forth in Exhibits A-1 and A-2 of the Purchase Agreement and such other matters as such Holder may reasonably request; and

 (3) a customary comfort letter, dated the date of effectiveness of the Shelf Registration Statement, from the
Company’s independent accountants, in the customary form and covering matters of the type customarily covered in comfort letters to underwriters in connection with underwritten offerings, and affirming the matters set forth in the comfort
letters delivered pursuant to Sections 5(g) of the Purchase Agreement; and 
 (B) deliver such other documents and
certificates as may be reasonably requested by the selling Holders to evidence compliance with the matters covered in clause (A) of this Section 5(b)(ix) and with any customary conditions contained in any agreement entered into by the
Company pursuant to this clause (ix); and 
 (x) prior to any public offering of Transfer Restricted Securities, cooperate
with the selling Holders and their counsel in connection with the registration and qualification of the Transfer Restricted Securities under the securities or Blue Sky laws of such jurisdictions as the selling Holders may reasonably request and do
any and all other acts or things necessary or advisable to enable the disposition in such jurisdictions of the Transfer Restricted Securities covered by the Shelf Registration Statement; provided, however, that the Company shall not be
required to register or qualify as a foreign corporation where it is not now so qualified or to take any action that would subject it to the service of process in suits or to taxation, other than as to matters and transactions relating to the Shelf
Registration Statement, in any jurisdiction where it is not now so subject. 
  

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 (c) General Provisions. In connection with any Registration Statement that the Company shall file
pursuant to Section 2 or Section 3 and any Prospectus related to any such Registration Statement, the Company shall: 
 (i) use its commercially reasonable efforts to keep such Registration Statement continuously effective and provide all requisite financial statements for the period specified in Sections 2 or 3 of this Agreement, as applicable. Upon the
occurrence of any event that would cause any such Registration Statement or the Prospectus contained therein (A) to contain an untrue statement of material fact or omit to state any material fact necessary to make the statements therein not
misleading or (B) not to be effective and usable for resale of Transfer Restricted Securities during the period required by this Agreement, the Company shall file promptly an appropriate amendment to such Registration Statement or a supplement
to the relevant prospectus curing such defect, and, if Commission review is required, use its commercially reasonable efforts to cause such amendment to be declared effective as soon as practicable If at any time the Commission shall issue any stop
order suspending the effectiveness of the Registration Statement, or any state securities commission or other regulatory authority shall issue an order suspending the qualification or exemption from qualification of the Transfer Restricted
Securities under state securities or Blue Sky laws, the Company shall use its commercially reasonable efforts to obtain the withdrawal or lifting of such order at the earliest possible time; 
 (ii) prepare and file with the Commission such amendments and post-effective amendments to the applicable Registration Statement as may
be necessary to keep such Registration Statement effective for the period specified in Sections 2 or 3 of this Agreement, as applicable; cause the Prospectus to be supplemented by any required Prospectus supplement, and as so supplemented to be
filed pursuant to Rule 424 under the Securities Act, and to comply fully with Rules 424, 430A and 462, as applicable, under the Securities Act in a timely manner; and comply with the provisions of the Securities Act with respect to the disposition
of all securities covered by such Registration Statement during the applicable period in accordance with the intended method or methods of distribution by the sellers thereof set forth in such Registration Statement or supplement to the Prospectus;

 (iii) subject to Section 5(c)(i) hereof, if any fact or event contemplated by Section 5(b)(iii)(D) hereof shall
exist or have occurred, prepare a supplement or post-effective amendment to the Registration Statement or related Prospectus or any document incorporated therein by reference or file any other required document so that, as thereafter delivered to
the purchasers of Transfer Restricted Securities, the Prospectus shall not contain an untrue statement of a material fact or omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they
were made, not misleading; 
 (iv) deliver to each Holder without charge, as many copies of the Prospectus (including each
preliminary prospectus) and any amendment or supplement thereto as such Persons reasonably may request; the Company hereby consents to the use (in accordance with law) of the Prospectus and any amendment or supplement thereto by each selling Holder
in connection with the offering and the sale of the Transfer Restricted Securities covered by the Prospectus or any amendment or supplement thereto; 
  

 12 

 (v) in connection with any sale of Transfer Restricted Securities that will result in
such securities no longer being Transfer Restricted Securities, (A) cooperate with the Holders to facilitate the timely preparation and delivery of certificates representing Transfer Restricted Securities to be sold and not bearing any
restrictive legends and (B) register such Transfer Restricted Securities in such denominations and such names as the selling Holders may request at least two Business Days prior to such sale of Transfer Restricted Securities; 
 (vi) use its commercially reasonable efforts to cause the disposition of the Transfer Restricted Securities covered by the Registration
Statement to be registered with or approved by such other governmental agencies or authorities as may be necessary to enable the seller or sellers thereof to consummate the disposition of such Transfer Restricted Securities; provided,
however, that the Company shall not be required to register or qualify as a foreign corporation where it is not now so qualified or to take any action that would subject it to the service of process in suits or to taxation, other than as to
matters and transactions relating to the Registration Statement, in any jurisdiction where it is not now so subject; 
 (vii)
provide a CUSIP number for all Transfer Restricted Securities not later than the effective date of a Registration Statement covering such Transfer Restricted Securities and provide the Trustee under the Indenture with printed certificates for the
Transfer Restricted Securities which are in a form eligible for deposit with the Depository Trust Company; 
 (viii)
cooperate and assist in any filings required to be made with the NASD and in the performance of any due diligence investigation by any underwriter (including any “qualified independent underwriter”) that is required to be retained in
accordance with the rules and regulations of the NASD; 
 (ix) otherwise use its commercially reasonable efforts to comply
with all applicable rules and regulations of the Commission, and make generally available to the Holders with regard to any applicable Registration Statement, as soon as practicable, a consolidated earnings statement meeting the requirements of Rule
158 (which need not be audited) covering a twelve-month period beginning after the effective date of the Registration Statement (as such term is defined in paragraph (c) of Rule 158 under the Securities Act); 
 (x) cause the Indenture to be qualified under the TIA not later than the effective date of the first Registration Statement required by
this Agreement and, in connection therewith, cooperate with the Trustee and the Holders to effect such changes to the Indenture as may be required for such Indenture to be so qualified in accordance with the terms of the TIA; and execute and use its
commercially reasonable efforts to cause the Trustee to execute all documents that may be required to effect such changes and all other forms and documents required to be filed with the Commission to enable such Indenture to be so qualified in a
timely manner; and 
  

 13 

 (xi) provide promptly to each Holder, upon request, each document filed with the
Commission pursuant to the requirements of Sections 13 or 15(d) of the Exchange Act. 
 (d) Restrictions on Holders. Each Holder
agrees by acquisition of a Transfer Restricted Security that, upon receipt of the notice referred to in Section 5(b)(iii)(C) hereof or any notice from the Company of the existence of any fact of the kind described in Section 5(b)(iii)(D)
hereof (in each case, a “Suspension Notice”), such Holder shall forthwith discontinue disposition of Transfer Restricted Securities pursuant to the applicable Registration Statement until (i) such Holder has received copies of
the supplemented or amended Prospectus contemplated by Section 5(c)(iii) hereof, or (ii) such Holder is advised in writing by the Company that the use of the Prospectus may be resumed, and has received copies of any additional or
supplemental filings that are incorporated by reference in the Prospectus (in each case, the “Recommencement Date”). Each Holder receiving a Suspension Notice hereby agrees that it shall either (i) destroy any Prospectuses,
other than permanent file copies, then in such Holder’s possession which have been replaced by the Company with more recently dated Prospectuses or (ii) deliver to the Company (at the Company’s expense) all copies, other than
permanent file copies, then in such Holder’s possession of the Prospectus covering such Transfer Restricted Securities that was current at the time of receipt of the Suspension Notice. The time period regarding the effectiveness of such
Registration Statement set forth in Sections 2 or 3 herein, as applicable, shall be extended by a number of days equal to the number of days in the period from and including the date of delivery of the Suspension Notice to the Recommencement Date.

 Section 6. Registration Expenses. (a) All expenses incident to the Company’s performance of or compliance with this
Agreement shall be borne by the Company, regardless of whether a Registration Statement becomes effective, including without limitation: (i) all registration and filing fees and expenses; (ii) all fees and expenses of compliance with
federal securities and state Blue Sky or securities laws; (iii) all expenses of printing (including printing certificates for the Exchange Notes to be issued in the Exchange Offer, or, if applicable, in connection with an offering pursuant to a
Shelf Registration Statement, and printing of Prospectuses), messenger and delivery services and telephone; (iv) all fees and disbursements of counsel for the Company and, subject to the limitations in Section 6(b) hereof, the fees and
disbursements of counsel for the Holders of Transfer Restricted Securities; (v) all application and filing fees in connection with listing the Exchange Notes on a national securities exchange or automated quotation system pursuant to the
requirements hereof; and (vi) all fees and disbursements of independent certified public accountants of the Company (including the expenses of any special audit and comfort letters required by or incident to such performance). 
 The Company shall, in any event, bear its internal expenses (including, without limitation, all salaries and expenses of its officers and employees
performing legal or accounting duties), the expenses of any annual audit and the fees and expenses of any Person, including special experts, retained by the Company. 
  

 14 

 (b) In connection with any Registration Statement required by this Agreement (including, without
limitation, the Exchange Offer Registration Statement and the Shelf Registration Statement), the Company shall reimburse the Initial Purchasers and the Holders of Transfer Restricted Securities who are tendering Initial Notes into in the Exchange
Offer and/or selling or reselling Initial Notes or Exchange Notes pursuant to the “Plan of Distribution” contained in the Exchange Offer Registration Statement or the Shelf Registration Statement, as applicable, for the reasonable fees and
disbursements of not more than one counsel, who shall be White & Case LLP unless another firm shall be chosen by the Holders of a majority in principal amount of the Transfer Restricted Securities for whose benefit such Registration
Statement is being prepared. 
 (c) Each Holder will pay all underwriting discounts and commissions and transfer taxes, if any, relating to
the sale or disposition of such Holder’s Transfer Restricted Securities pursuant to the Shelf Registration Statement. 
 Section 7.
Indemnification and Contribution. (a) The Company agrees to indemnify and hold harmless each Holder, each Person, if any, who controls any Holder within the meaning of either Section 15 of the Securities Act or Section 20 of
the Exchange Act, and each affiliate of any Holder within the meaning of Rule 405 under the Securities Act from and against any and all losses, claims, damages and liabilities, (including, without limitation, any legal or other expenses reasonably
incurred in connection with defending or investigating any such action or claim) caused by any untrue statement or alleged untrue statement of a material fact contained in any Registration Statement, preliminary prospectus or Prospectus (or any
amendment or supplement thereto) provided by the Company to any Holder or any prospective purchaser of Exchange Notes or registered Initial Notes, or caused by any omission or alleged omission to state therein a material fact necessary to make the
statements therein in the light of the circumstances under which they were made not misleading, except insofar as such losses, claims, damages or liabilities are caused by any such untrue statement or omission or alleged untrue statement or omission
based upon information relating to any Holder furnished to the Company in writing by such Holder expressly for use therein. 
 (b) Each
Holder agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors and officers and each person, if any, who controls the Company within the meaning of either Section 15 of the Securities Act or Section 20
of the Exchange Act to the same extent as the foregoing indemnity from the Company to such Holder, but only with reference to information relating to such Holder furnished to the Company in writing by such Holder expressly for use in any
Registration Statement, preliminary prospectus or Prospectus (or any amendment or supplement thereto). 
 (c) In case any proceeding
(including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to Section 7(a) or 7(b), such person (the “Indemnified Party”), shall promptly notify the
person against whom such indemnity may be sought (the “Indemnifying Party”) in writing, but the omission to so notify the indemnifying party shall not relieve it from any liability which it may have to any indemnified party, and the
indemnifying party, upon request of the indemnified party, shall retain counsel reasonably satisfactory to the indemnified party to represent the indemnified party and any others the indemnifying party may designate in such proceeding and 

  

 15 

 
shall pay the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain
its own counsel, but the fees and expenses of such counsel shall be at the expense of such indemnified party unless (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel or
(ii) the named parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and representation of both parties by the same counsel would be inappropriate due to actual or
potential differing interests between them. It is understood that the indemnifying party shall not, in respect of the legal expenses of any indemnified party in connection with any proceeding or related proceedings in the same jurisdiction, be
liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all such indemnified parties and that all such fees and expenses shall be reimbursed as they are incurred. Such firm shall be designated in
writing by a majority of the Holders, in the case of parties indemnified pursuant to Section 7(a), and by the Company, in the case of parties indemnified pursuant to Section 7(b). The indemnifying party shall not be liable for any
settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or
liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as
contemplated by the second and third sentences of this paragraph, the indemnifying party agrees that it shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than
30 days after receipt by such indemnifying party of the aforesaid request and (ii) such indemnifying party shall not have reimbursed the indemnified party in accordance with such request prior to the date of such settlement. No indemnifying
party shall, without the prior written consent of the indemnified party, effect any settlement of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnity could have been sought
hereunder by such indemnified party, unless such settlement (i) includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding and (ii) does not include any
statements as to or any findings of fault, culpability or failure to act by or on behalf of any indemnified party. 
 (d) To the extent the
indemnification provided for in Section 7(a) or 7(b) is unavailable to an indemnified party or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each indemnifying party under such Section, in lieu
of indemnifying such indemnified party thereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the
relative benefits received by the Company on the one hand and the Holders on the other hand from the offering of the Notes or (ii) if the allocation provided by Section 7(d)(i) above is not permitted by applicable law, in such proportion
as is appropriate to reflect not only the relative benefits referred to in Section 7(d)(i) above but also the relative fault of the Company on the one hand and of the Holders on the other hand in connection with the statements or omissions that
resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Holders on the other hand in connection with the offering of the
Notes shall be deemed to be in the same respective proportions as the net proceeds from the offering of the Notes (before deducting expenses) received by the Company 

  

 16 

 
and the total discounts and commissions received by the Holders bear to the aggregate offering price of the Notes. The relative fault of the Company on the
one hand and of the Holders on the other hand shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to
information supplied by the Company or by the Holders and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Holders’ respective obligations to contribute
pursuant to this Section 7 are several in proportion to the respective principal amount of Notes they have purchased hereunder, and not joint. 
 (e) The Company and each Holder agree that it would not be just or equitable if contribution pursuant to Section 7(d) were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or by
any other method of allocation that does not take account of the equitable considerations referred to in Section 7(d). The amount paid or payable by an indemnified party as a result of the losses, claims, damages and liabilities referred to in
Section 7(d) shall be deemed to include, subject to the limitations set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 7, no Holder shall be required to contribute any amount in excess of the amount by which the total discounts and commissions received by the Holders exceed the amount of any damages that such
Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall
be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies which may otherwise be available to
any indemnified party at law or in equity. 
 (f) The indemnity and contribution provisions contained in this Section 7 and the
representations, warranties and other statements of the Company contained in this Agreement shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on
behalf of any Holder, any person controlling any Holder or any affiliate of any Holder or by or on behalf of the Company, its officers or directors or any person controlling the Company and (iii) acceptance of and payment for any of the Notes.

 Section 8. Rule 144a and Rule 144. The Company agrees with each Holder, for so long as any Transfer Restricted Securities remain
outstanding and during any period in which the Company (i) is not subject to Section 13 or 15(d) of the Exchange Act, to make available, upon request of any Holder, to such Holder or beneficial owner of Transfer Restricted Securities in
connection with any sale thereof and any prospective purchaser of such Transfer Restricted Securities designated by such Holder or beneficial owner, the information required by Rule 144A(d)(4) under the Securities Act in order to permit resales of
such Transfer Restricted Securities pursuant to Rule 144A; and (ii) is subject to Section 13 or 15(d) of the Exchange Act, to make all filings required thereby in a timely manner in order to permit resales of such Transfer Restricted
Securities pursuant to Rule 144. 
  

 17 

 Section 9. Miscellaneous. (a) Remedies. Without limiting the remedies available to the
Initial Purchasers and the Holders, including, without limitation, recovery of liquidated damages or other damages, the Company acknowledges that any failure by the Company to comply with its obligations under Section 2 and Section 3
hereof may result in material irreparable injury to the Initial Purchasers or the Holders for which there is no adequate remedy at law, that it will not be possible to measure damages for such injuries precisely and that, in the event of any such
failure, the Initial Purchasers or any Holder may obtain such relief as may be required to specifically enforce the Company’s obligations under Section 2 and Section 3 hereof. 
 (b) No Inconsistent Agreements. The Company shall not, on or after the date of this Agreement, enter into any agreement with respect to its
securities that is inconsistent with the rights granted to the Holders in this Agreement or otherwise conflicts with the provisions hereof. The Company is not a party to any agreement granting any registration rights with respect to its securities
to any Person that would require such securities to be included in any Registration Statement contemplated by this Agreement. The rights granted to the Holders hereunder do not in any way conflict with and are not inconsistent with the rights
granted to the holders of the Company’s securities under any agreement in effect on the date hereof. 
 (c) Amendments and
Waivers. The provisions of this Agreement may not be amended, modified or supplemented, and waivers or consents to or departures from the provisions hereof may not be given unless the Company has obtained the written consent of Holders of a
majority of the outstanding principal amount of Transfer Restricted Securities (excluding Transfer Restricted Securities held by the Company or its Affiliates). 
 (d) Notices. All notices and other communications provided for or permitted hereunder shall be made in writing by hand-delivery, first-class mail (registered or certified, return receipt requested), fax, telex,
telecopier, or air courier guaranteeing overnight delivery: 
 (i) if to a Holder, at the address set forth on the records of
the Registrar under the Indenture, with a copy to the Registrar under the Indenture; and 
 (ii) if to the Company:

 Petroleum Development Corporation 
 120 Genesis Boulevard 
 Bridgeport, West Virginia 26330 
 Attention: General Counsel 
 Fax: (304) 842-0913 
 with a copy to: 
 Andrews Kurth LLP 
 600 Travis 
 Suite 4200 
 Houston, Texas 77002 
 Attention: Henry Havre, Esq. 
 Fax: (713) 220-4285 
  

 18 

 All such notices and communications shall be deemed to have been duly given: at the time delivered by
hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt acknowledged, if sent by fax, and on the next Business Day, if timely delivered to an air courier guaranteeing overnight
delivery. 
 Copies of all such notices, demands or other communications shall be concurrently delivered by the Person giving the same to the
Trustee at the address specified in the Indenture. 
 Upon the date of filing of the Exchange Offer or a Shelf Registration Statement, as the
case may be, notice shall be delivered to the Initial Purchasers in the form attached hereto as Exhibit A. 
 (e) Successors and
Assigns. This Agreement shall inure to the benefit of and be binding upon the successors and assigns of each of the parties, including without limitation and without the need for an express assignment, subsequent Holders; provided that
nothing herein shall be deemed to permit any assignment, transfer or other disposition of Transfer Restricted Securities in violation of the terms hereof or of the Purchase Agreement or the Indenture. If any transferee of any Holder shall acquire
Transfer Restricted Securities in any manner, whether by operation of law or otherwise, such Transfer Restricted Securities shall be held subject to all of the terms of this Agreement, and by taking and holding such Transfer Restricted Securities
such Person shall be conclusively deemed to have agreed to be bound by and to perform all of the terms and provisions of this Agreement, including the restrictions on resale set forth in this Agreement and, if applicable, the Purchase Agreement, and
such Person shall be entitled to receive the benefits hereof. 
 (f) Counterparts. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. 
 (g) Headings. The headings in this Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof.

 (h) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

 (i) Severability. In the event that any one or more of the provisions contained herein, or the application thereof in any
circumstance, is held invalid, illegal or unenforceable, the validity, legality and enforceability of any such provision in every other respect and of the remaining provisions contained herein shall not be affected or impaired thereby. 

(j) Third Party Beneficiary. The Holders shall be third party beneficiaries to the agreements made hereunder between the Company, on the one
hand, and the Initial Purchasers, on the other hand, and shall have the right to enforce such agreements directly to the extent they may deem such enforcement necessary or advisable to protect its rights or the rights of Holders hereunder.

  

 19 

 (k) Entire Agreement. This Agreement is intended by the parties as a final expression of their
agreement and intended to be a complete and exclusive statement of the agreement and understanding of the parties hereto in respect of the subject matter contained herein. There are no restrictions, promises, warranties or undertakings, other than
those set forth or referred to herein with respect to the registration rights granted with respect to the Transfer Restricted Securities. This Agreement supersedes all prior agreements and understandings between the parties with respect to such
subject matter. 
 (signature page follows) 
  

 20 

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

  

			
	Very truly yours,
	
	PETROLEUM DEVELOPMENT CORPORATION
		
	By:	 	/s/ Steven Williams
		 	Name: Steven Williams
		 	Title:   Chief Executive Officer

 Accepted and Agreed to: 
 Morgan Stanley & Co. Incorporated 
 J.P. Morgan Securities Inc. 
 Acting severally on behalf of themselves and the 
     several Initial Purchasers named in the 
     Purchase Agreement. 
  

			
	By:	 	Morgan Stanley & Co. Incorporated
		
	By:	 	/s/ William Graham
		 	 Name: William Graham
 Title:   Managing
Director

 EXHIBIT A 
 NOTICE OF FILING OF A/B EXCHANGE OFFER REGISTRATION STATEMENT 
  

	To:	Morgan Stanley & Co. Incorporated 

	  	One New York Plaza 

	  	New York, New York 10004 

	  	Attention: Corporate Actions 

	  	Fax: (718) 233-2073 

  

	  	J.P. Morgan Securities Inc. 

	  	270 Park Avenue 

	  	New York, New York 10017 

	  	Attention: Lawrence Landry 

	  	Fax: (212) 270-1063 

  

	  	BNP Paribas Securities Corp. 

	  	787 Seventh Avenue 

	  	New York, New York 10019 

	  	Attention: Paul Brown, High Yield Capital Markets 

	  	Fax: (212) 471-2868 

  

	  	Wachovia Capital Markets, LLC 

	  	One Wachovia Center 

	  	301 South College Street 

	  	Charlotte, North Carolina 28288 

	  	Attention: Bill Lovett, High Yield Syndicate 

	  	Fax: (704) 383-0550 

  

	From:	 Petroleum Development Corporation 

	            	12% Senior Notes due 2018 

 Date:
                    , 20[    ] 
 For your information only (NO ACTION REQUIRED): 
 Today,
                    , 20[    ], we filed [an A/B Exchange Registration Statement] [a Shelf Registration Statement] with the
Securities and Exchange Commission. We currently expect this registration statement to be declared effective within [    ] business days of the date hereof.

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