Document:

EX-4.3

 Exhibit 4.3 

EXECUTION VERSION 
  

 
 WHITING PETROLEUM CORPORATION, 

THE GUARANTORS NAMED ON THE SIGNATURE PAGE HEREOF 

and 
 THE BANK OF NEW YORK MELLON
TRUST COMPANY, N.A., 
 as Trustee 

FOURTH SUPPLEMENTAL INDENTURE 

dated as of March 27, 2015 

to 
 SENIOR INDENTURE 

dated as of September 12, 2013 

Providing for Issuance of 
 6.25%
SENIOR NOTES DUE 2023 
  
  

 TABLE OF CONTENTS 

 

							
	 	    	 	  	Page	 
	 ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE
	  	 	2	  
			
	 Section 1.01
	    	Definitions	  	 	2	  
	 Section 1.02
	    	Other Definitions	  	 	28	  
	 Section 1.03
	    	Rules of Construction	  	 	29	  
	 Section 1.04
	    	Incorporation by Reference of Trust Indenture Act	  	 	29	  
		
	 ARTICLE 2 THE NOTES
	  	 	30	  
			
	 Section 2.01
	    	Creation and Form	  	 	30	  
	 Section 2.02
	    	Execution and Authentication	  	 	30	  
	 Section 2.03
	    	Outstanding Notes	  	 	30	  
	 Section 2.04
	    	CUSIP Numbers	  	 	31	  
	 Section 2.05
	    	Issuance of Additional Notes	  	 	31	  
		
	 ARTICLE 3 REDEMPTION AND PURCHASE
	  	 	31	  
			
	 Section 3.01
	    	Redemption and Purchase	  	 	31	  
	 Section 3.02
	    	Optional Redemption	  	 	32	  
	 Section 3.03
	    	Mandatory Redemption	  	 	32	  
	 Section 3.04
	    	Offer to Purchase by Application of Excess Proceeds	  	 	32	  
		
	 ARTICLE 4 COVENANTS
	  	 	34	  
			
	 Section 4.01
	    	Payment of Notes	  	 	34	  
	 Section 4.02
	    	Maintenance of Office or Agency	  	 	34	  
	 Section 4.03
	    	Reports	  	 	35	  
	 Section 4.04
	    	Compliance Certificate	  	 	36	  
	 Section 4.05
	    	Taxes	  	 	36	  
	 Section 4.06
	    	Stay, Extension and Usury Laws	  	 	36	  
	 Section 4.07
	    	Limitation on Restricted Payments	  	 	37	  
	 Section 4.08
	    	Limitation on Dividend and Other Payment Restrictions Affecting Subsidiaries	  	 	40	  
	 Section 4.09
	    	Limitation on Incurrence of Indebtedness and Issuance of Preferred Stock	  	 	43	  
	 Section 4.10
	    	Limitation on Asset Sales	  	 	46	  
	 Section 4.11
	    	Limitation on Transactions with Affiliates	  	 	48	  
	 Section 4.12
	    	Limitation on Liens	  	 	50	  
	 Section 4.13
	    	Additional Subsidiary Guarantees	  	 	50	  
	 Section 4.14
	    	Corporate Existence	  	 	50	  
	 Section 4.15
	    	Offer to Repurchase Upon Change of Control Triggering Event	  	 	51	  
	 Section 4.16
	    	No Inducements	  	 	53	  
	 Section 4.17
	    	Designation of Restricted and Unrestricted Subsidiaries	  	 	54	  
	 Section 4.18
	    	Covenant Termination	  	 	54	  
		
	 ARTICLE 5 SUCCESSORS
	  	 	54	  
			
	 Section 5.01
	    	Merger, Consolidation, or Sale of Assets	  	 	54	  
	 Section 5.02
	    	Successor Entity Substituted	  	 	55	  

  
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	 ARTICLE 6 DEFAULTS AND REMEDIES
		 	56	  
			
	 Section 6.01
		Events of Default		 	56	  
	 Section 6.02
		Acceleration		 	58	  
	 Section 6.03
		[Intentionally Omitted.]		 	59	  
	 Section 6.04
		Waiver of Usury, Stay or Extension of Laws		 	59	  
		
	 ARTICLE 7 TRUSTEE; REPORTS
		 	59	  
			
	 Section 7.01
		Notice of Defaults		 	59	  
	 Section 7.02
		[Intentionally Omitted.]		 	59	  
	 Section 7.03
		Compensation and Reimbursement		 	59	  
	 Section 7.04
		Reports by Company and Subsidiary Guarantors		 	60	  
		
	 ARTICLE 8 LEGAL DEFEASANCE AND COVENANT DEFEASANCE
		 	60	  
			
	 Section 8.01
		Option to Effect Legal Defeasance or Covenant Defeasance		 	60	  
	 Section 8.02
		Legal Defeasance and Discharge		 	60	  
	 Section 8.03
		Covenant Defeasance		 	61	  
	 Section 8.04
		Conditions to Legal or Covenant Defeasance		 	61	  
	 Section 8.05
		Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions		 	62	  
	 Section 8.06
		Repayment to Company		 	63	  
	 Section 8.07
		Reinstatement		 	63	  
	 Section 8.08
		Discharge		 	64	  
		
	 ARTICLE 9 AMENDMENT, SUPPLEMENT AND WAIVER
		 	64	  
			
	 Section 9.01
		Without Consent of Holders of Notes		 	64	  
	 Section 9.02
		With Consent of Holders of Notes		 	65	  
	 Section 9.03
		Revocation and Effect of Consents		 	67	  
		
	 ARTICLE 10 GUARANTEES OF NOTES
		 	67	  
			
	 Section 10.01
		Subsidiary Guarantees		 	67	  
	 Section 10.02
		Notation of Subsidiary Guarantees		 	69	  
	 Section 10.03
		Guarantors May Consolidate, Etc., on Certain Terms		 	69	  
	 Section 10.04
		Releases of Subsidiary Guarantees		 	69	  
	 Section 10.05
		Limitation on Guarantor Liability		 	70	  
	 Section 10.06
		“Trustee” to Include Paying Agent		 	71	  
		
	 ARTICLE 11 MISCELLANEOUS
		 	71	  
			
	 Section 11.01
		Fourth Supplemental Indenture Controls		 	71	  
	 Section 11.02
		No Personal Liability of Directors, Officers, Employees and Stockholders		 	71	  
	 Section 11.03
		Governing Law; Waiver of Jury Trial; Submission to Jurisdiction		 	71	  
	 Section 11.04
		Force Majeure		 	71	  
	 Section 11.05
		No Adverse Interpretation of Other Agreements		 	72	  
	 Section 11.06
		Table of Contents and Headings		 	72	  
	 Section 11.07
		Counterparts		 	72	  
	 Section 11.08
		Tax Withholding		 	72	  

  
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 APPENDIX 
  

							
	APPENDIX		 Rule 144A/Regulation S Appendix
		 	App - 1	  

 EXHIBITS 
  

							
	EXHIBIT A		 Form of Note
		 	A - 1	  
			
	EXHIBIT B		 Form of Supplemental Indenture
		 	B - 1	  

  
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 This Fourth Supplemental Indenture, dated as of March 27, 2015 (this “Fourth
Supplemental Indenture”), supplements and amends the Senior Indenture, dated as of September 12, 2013 (the “Original Indenture”), among Whiting Petroleum Corporation, a Delaware corporation (the “Company”), WOGC (as
defined below), as Guarantor and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”). 

RECITATIONS OF THE COMPANY 

WHEREAS, the Company, WOGC and the Trustee have heretofore executed and delivered the Original Indenture to provide for the issuance of the
Company’s senior debt securities to be issued in one or more series (herein called the “Securities”); 
 WHEREAS,
Section 901 of the Original Indenture provides, among other things, that the Company, the Guarantors and the Trustee may without the consent of Holders enter into indentures supplemental to the Original Indenture to, among other things,
(a) add to, change or eliminate any of the provisions of the Original Indenture in respect of one or more series of Securities, provided that any such addition, change or elimination (i) shall neither (A) apply to any Security
of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such provision nor (B) modify the rights of the Holder of any such Security with respect to such provision or (ii) shall become
effective only when there is no such Security outstanding and (b) establish the form or terms of Securities of any series as permitted by Sections 201 and 301; 

WHEREAS, the Company desires to provide for the issuance of a series of Securities to be designated as the “6.25% Senior Notes due
2023” (the “Notes”), and to set forth the form and terms thereof; 
 WHEREAS, the Company proposes in and by this Fourth
Supplemental Indenture to supplement and amend the Original Indenture, but only insofar as it will apply to the Notes; and 
 WHEREAS, all
action on the part of the Company necessary to authorize the creation and issuance of the Notes, and all action on the part of each of the Guarantors necessary to authorize its guarantee of the Notes under the Original Indenture and this Fourth
Supplemental Indenture (the Original Indenture, as supplemented and amended by this Fourth Supplemental Indenture, being hereinafter called the “Indenture”), has been duly taken. 

NOW, THEREFORE, THIS FOURTH SUPPLEMENTAL INDENTURE WITNESSETH: 

That, in order to establish the designation, form and terms of, and to authorize the authentication and delivery of the Notes and the
Guarantees of the Guarantors, and in consideration of the acceptance of the Notes and the Guarantees by the Holders thereof and 

  
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of other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows: 

ARTICLE 1 
 DEFINITIONS AND
INCORPORATION 
 BY REFERENCE 

Section 1.01 Definitions. 
 (a)
Capitalized terms used herein and not otherwise defined shall have the respective meanings assigned thereto in the Original Indenture. 

(b) Section 101 of the Original Indenture is amended and supplemented, with respect to the Notes, by inserting or restating, as the case
may be, in their appropriate alphabetical position, the following definitions: 
 “ACNTA” (Adjusted Consolidated Net
Tangible Assets) means (without duplication), as of the date of determination: 
 (1) the sum of: 

(a) discounted future net revenue from proved crude oil and natural gas reserves of the Company and its Restricted Subsidiaries
calculated in accordance with Commission guidelines before any state or federal income taxes, as estimated in a reserve report prepared as of the end of the Company’s most recently completed fiscal year, which reserve report is prepared or
reviewed by independent petroleum engineers as to reserves accounting for at least 80% of all such discounted future net revenue and by the Company’s petroleum engineers with respect to any other such reserves covered by such report, as
increased by, as of the date of determination, the discounted future net revenue from: 
 (i) estimated proved crude oil and
natural gas reserves of the Company and its Restricted Subsidiaries attributable to acquisitions consummated since the date of such year-end reserve report, and 

(ii) estimated proved crude oil and natural gas reserves of the Company and its Restricted Subsidiaries attributable to
extensions, discoveries and other additions and upward determinations of estimates of proved crude oil and natural gas reserves (including previously estimated development costs incurred during the period and the accretion of discount since the
prior year end) due to exploration, development or exploitation, production or other activities which reserves were not reflected in such year-end reserve report, 

in each case calculated in accordance with Commission guidelines (utilizing the prices utilized in such year-end reserve report), and decreased
by, as of the date of determination, the discounted future net revenue attributable to 
 (iii) estimated proved crude oil
and natural gas reserves of the Company and its Restricted Subsidiaries reflected in such year-end reserve report produced or disposed of since the date of such year-end reserve report and 

(iv) reductions in the estimated proved crude oil and natural gas reserves of the Company and its Restricted Subsidiaries
reflected in such year-end reserve report since the date of such year-end reserve report 

  
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attributable to downward determinations of estimates of proved crude oil and natural gas reserves due to exploration, development or exploitation, production or other activities conducted or
otherwise occurring since the date of such year-end reserve report, 
 in each case calculated in accordance with Commission guidelines
(utilizing the prices utilized in such year-end reserve report); provided, however, that, in the case of each of the determinations made pursuant to clauses (i) through (iv), such increases and decreases shall be as estimated by
the Company’s engineers, except that if as a result of such acquisitions, dispositions, discoveries, extensions or revisions, there is a Material Change, then such increases and decreases in the discounted future net revenue shall be confirmed
in writing by an independent petroleum engineer; 
 (b) the capitalized costs that are attributable to crude oil and natural
gas properties of the Company and its Restricted Subsidiaries to which no proved crude oil and natural gas reserves are attributed, based on the Company’s books and records as of a date no earlier than the date of the Company’s latest
annual or quarterly financial statements; 
 (c) the Net Working Capital on a date no earlier than the date of the
Company’s latest annual or quarterly financial statements; and 
 (d) the greater of (I) the net book value on a
date no earlier than the date of the Company’s latest annual or quarterly financial statements or (II) 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; 
 (2) minus, to the extent not
otherwise taken into account in the immediately preceding clause (1), the sum of: 
 (a) noncontrolling interests; 

(b) any net gas balancing liabilities of the Company and its Restricted Subsidiaries reflected in the Company’s latest
audited financial statements; 
 (c) the discounted future net revenue, calculated in accordance with Commission guidelines
(utilizing the same prices utilized in the Company’s year-end reserve report), attributable to reserves subject to participation interests, overriding royalty interests or other interests of third parties, pursuant to participation,
partnership, vendor financing or other agreements then in effect, or which otherwise are required to be delivered to third parties; 

(d) the discounted future net revenue, calculated in accordance with Commission guidelines (utilizing the same prices utilized
in the Company’s year-end reserve report), attributable to reserves that 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 on the schedules specified with respect thereto; and 

  
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 (e) the discounted future net revenue, calculated in accordance with Commission
guidelines, attributable to reserves subject to Dollar-Denominated Production Payments that, based on the estimates of production included in determining the discounted future net revenue specified in the immediately preceding clause
(1)(a) (utilizing the same prices utilized in the Company’s year-end reserve report), would be necessary to satisfy fully the obligations of the Company and its Restricted Subsidiaries with respect to Dollar-Denominated Production Payments
on the schedules specified with respect thereto. 
 Any calculation of Adjusted Consolidated Net Tangible Assets shall be determined on a pro forma basis in
a manner consistent with the pro forma adjustments contained in the definition of Fixed Charge Coverage Ratio. If the Company changes its method of accounting for its oil and gas properties from the successful efforts method to the full cost method
or a similar method of accounting, ACNTA will continue to be calculated as if the Company were still using the successful efforts method of accounting. 

“Acquired Debt” means, with respect to any specified Person: 

(1) Indebtedness, Disqualified Stock or preferred stock of any other Person existing at the time such other Person was merged
with or into or became a Subsidiary of such specified Person, whether or not such Indebtedness, Disqualified Stock or preferred stock is incurred or issued in connection with, or in contemplation of, such other Person merging with or into, or
becoming a Subsidiary of, such specified Person; provided, however, that Indebtedness, Disqualified Stock or preferred stock of such acquired Person which is redeemed, defeased, retired or otherwise repaid at the time of or
substantially contemporaneously with the consummation of the transactions by which such Person merges with or into or becomes a Subsidiary of such Person shall not be Acquired Debt; and 

(2) Indebtedness secured by a Lien encumbering any asset acquired by such specified Person. 

“Additional Assets” means: 

(1) any assets used or useful in the Oil and Gas 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; or 
 (3) Capital Stock constituting a minority in any Person that at such time
is a Restricted Subsidiary; 
 provided, however, that any such Restricted Subsidiary described in clause (2) or (3) is primarily
engaged in the Oil and Gas Business. 

  
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 “Additional Interest” means all additional interest then owing pursuant to
Section 2(d) of the Registration Rights Agreement referred to in clause (1) of the definition of “Registration Rights Agreement” in the Appendix. Unless the context indicates otherwise, all references in this Indenture or the
Notes in any context to any interest on or with respect to the Notes shall be deemed to include any Additional Interest to the extent then applicable. 

“Additional Notes” means, subject to the Company’s compliance with Section 4.09 of this Fourth Supplemental
Indenture, 6.25% Senior Notes due 2023 of the Company as may be originally issued from time to time after the Issue Date under the terms of this Indenture, together with all other Notes issued upon registration of transfer of, or in exchange for,
such Notes. 
 “Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled
by or under direct or indirect common control with such specified Person. For purposes of this definition, “control,” as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the
direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise. For purposes of this definition, the terms “controlling,” “controlled by” and “under
common control with” have correlative meanings. 
 “Applicable Law,” except as the context may otherwise require,
means all applicable laws, rules, regulations, ordinances, judgments, decrees, injunctions, writs and orders of any court or governmental or congressional agency or authority and rules, regulations, orders, licenses and permits of any United States
federal, state, municipal, regional, foreign or other governmental body, instrumentality, agency or authority. 
 “Applicable
Premium” means, with respect to a Note being redeemed (in whole or in part) at any Redemption Date, the greater of (x) 1.0% of the principal amount of such Note being redeemed or (y) the excess of (A) the present value at
such Redemption Date of (1) the principal amount of such Note, plus (2) all required remaining scheduled interest payments due with respect to such principal on the final maturity date (without regard to accrued and unpaid interest first
due on the Redemption Date), computed using a discount rate equal to the Treasury Rate plus 50 basis points, over (B) the principal amount of such Note being redeemed on such Redemption Date. 

“Asset Sale” means: 

(1) the sale, lease, conveyance or other disposition of any properties or assets (including by way of a Production Payment or
Sale And Leaseback Transaction); provided that the sale, lease, conveyance or other disposition of all or substantially all of the properties or assets of the Company and its Restricted Subsidiaries taken as a whole will be governed by the
provisions of Section 4.15 of this Fourth Supplemental Indenture and/or the provisions of Section 5.01 of this Fourth Supplemental Indenture and not by the provisions of Section 4.10 of this Fourth Supplemental Indenture; and 

(2) the issuance of Equity Interests in any of the Company’s Restricted Subsidiaries or the sale by the Company or any of
the Company’s Restricted Subsidiaries of Equity Interests in any of the Company’s Restricted Subsidiaries (other than directors’ qualifying shares or shares required by Applicable Law to be held by a Person other than the Company or a
Restricted Subsidiary). 

  
 5 

 Notwithstanding the preceding, the following items will not be deemed to be Asset Sales: 

(1) any single transaction or series of related transactions that involves properties or assets having a fair market value of
less than $25.0 million; 
 (2) a transfer of assets between or among any of the Company and its Restricted Subsidiaries;

 (3) an issuance or sale of Equity Interests by a Restricted Subsidiary to the Company or to another Restricted Subsidiary;

 (4) the sale, lease or other disposition of equipment, inventory, accounts receivable or other properties or assets in the
ordinary course of business, including, without limitation, any abandonment, farm-in, farm-out, lease or sublease of any oil and gas properties or the forfeiture or other disposition of such properties pursuant to standard form operating agreements,
or any operating lease or sublease in each case in the ordinary course of business in a manner customary in the Oil and Gas Business, but excluding from this clause (4) any disposition as a result of the creation of a Production Payment; 

(5) the sale or other disposition of cash or Cash Equivalents; 

(6) a Restricted Payment that is permitted by Section 4.07 of this Fourth Supplemental Indenture or a Permitted
Investment; 
 (7) any trade or exchange by the Company or any Restricted Subsidiary of oil and gas properties or other
properties or assets for oil and gas properties or other properties or assets owned or held by another Person; provided that the fair market value of the properties or assets traded or exchanged by the Company or such Restricted Subsidiary
(together with any cash) is reasonably equivalent to the fair market value of the properties or assets (together with any cash) to be received by the Company or such Restricted Subsidiary; provided, further, that any cash received must
be applied in accordance with the provisions of Section 4.10 of this Fourth Supplemental Indenture; 
 (8) the creation
or perfection of a Lien (but not the sale or other disposition of the properties or assets subject to such Lien); 
 (9)
surrender or waiver of contract rights or the settlement, release or surrender of contract, tort or other claims of any kind; 

(10) any sale or other disposition of damaged, worn-out or obsolete assets in the ordinary course of business (including the
assignment, cancellation or abandonment or other disposition of intellectual property that is, in the reasonable judgment of the Company, no longer economically practicable to maintain or useful in any material respect in the conduct of the business
of the Company and its Restricted Subsidiaries taken as whole); and 

  
 6 

 (11) any Production Payments; provided that all such Production Payments
(other than 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 Restricted Subsidiary) shall have been
created, incurred, issued, assumed or guaranteed no later than 60 days after the acquisition of, the properties that are subject thereto. 

“Attributable Debt” in respect of a sale and leaseback transaction means, at the time of determination, the present value of
the obligation of the lessee for net rental payments during the remaining term of the lease included in such sale and leaseback transaction including any period for which such lease has been extended or may, at the option of the lessor, be extended.
Such present value shall be calculated using a discount rate equal to the rate of interest implicit in such transaction, determined in accordance with GAAP. 

“Bankruptcy Law” means Title 11, United States Code, as may be amended from time to time, or any similar federal or state law
for the relief of debtors. 
 “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 by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only upon the passage of time or the occurrence of a subsequent
condition. The terms “Beneficially Owns,” “Beneficially Owned” and “Beneficially Owning” have correlative meanings. 

“Board of Directors” means: 

(1) with respect to a corporation, the board of directors of the corporation or any committee thereof duly authorized to act on
behalf of such board; 
 (2) with respect to a partnership, the Board of Directors of the general partner of the partnership;

 (3) with respect to a limited liability company, the Board of Directors of the managing member, if the managing member is
an entity, or the managing member or members or any controlling committee of managing members thereof, if the managing members are individuals; and 

(4) with respect to any other Person, the board or committee of such Person serving a similar function. 

“Board Resolution” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the applicable Person
to have been duly adopted by the Board of Directors of such Person and to be in full force and effect on the date of such certification, and delivered to the Trustee. 

  
 7 

 “Business Day” means each day that is not a Saturday, Sunday or other day on
which banking institutions in Chicago, Illinois, Denver, Colorado or New York, New York or another place of payment are authorized or required by law to close. 

“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. Notwithstanding the foregoing, any lease existing on the Issue Date or entered into thereafter that would have been classified as an operating lease pursuant to
GAAP as in effect on the Issue Date will be deemed not to be a capital lease or a financing lease. 
 “Capital Markets
Indebtedness” means any Indebtedness incurred in or under (i) any registered offering of debt securities under the Securities Act or (ii) any private placement of debt securities (including under Rule 144A of the Securities Act)
pursuant to an exemption from the registration requirements of the Securities Act. 
 “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 or membership interests (whether general or limited); 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 Convertible Securities regardless of whether such Convertible Securities include any
right of participation with Capital Stock. 
 “Cash Equivalents” means: 

(1) United States dollars; 

(2) securities issued or directly and fully guaranteed or insured by the United States government or any agency or
instrumentality of the United States government (provided that the full faith and credit of the United States is pledged in support of those securities) having maturities of not more than one year from the date of acquisition; 

(3) certificates of deposit 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 lender party to the Credit Agreement or with any domestic commercial bank; 

  
 8 

 (4) repurchase obligations with a term of not more than seven days for underlying
securities of the types described in clauses (2) and (3) above entered into with any financial institution meeting the qualifications specified in clause (3) above; 

(5) 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; 
 (6) money market funds the assets of which primarily constitute Cash
Equivalents of the kinds described in clauses (1) through (5) of this definition; and 
 (7) repurchase obligations
with a term of not more than seven days for underlying securities of the types described in clause (1) above entered into with any financial institution meeting the qualifications specified in clause (3) above. 

“Change of Control Triggering Event” means the occurrence of any of the following: 

(1) 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 properties or assets (including Capital Stock of the Restricted Subsidiaries) of the Company and its Restricted Subsidiaries taken as a whole, to any
“person” or “group” (as such terms are used in Section 13(d)(3) of the Exchange Act), which occurrence is followed by a Rating Decline within 90 days thereof; 

(2) the adoption of a plan relating to the liquidation or dissolution of the Company; 

(3) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is
that any “person” or “group” (as such terms are used in Section 13(d)(3) of the Exchange Act) becomes the Beneficial Owner, directly or indirectly, of more than 50% of the Voting Stock of the Company, measured by voting
power rather than number of shares, which occurrence is followed by a Rating Decline within 90 days thereof; or 
 (4) the
first day on which a majority of the members of the Board of Directors of the Company are not Continuing Directors, which occurrence is followed by a Rating Decline within 90 days thereof. 

For purposes of clause (3) of this definition, a Person shall not be deemed to beneficially own securities that are the subject of a stock
purchase agreement, merger agreement or similar agreement until consummation of the transactions or, as applicable, series of related transactions contemplated thereby. 

“Commission” means the Securities and Exchange Commission. 

  
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 “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, to the extent 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) consolidated
interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued and whether or not capitalized (excluding any interest attributable to Dollar-Denominated Production Payments but including, without limitation,
amortization of debt issuance costs and original issue discount, non-cash interest payments, the interest component of any deferred payment obligations, the interest component of all payments associated with Capital Lease Obligations, imputed
interest with respect to Attributable Debt, 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 Hedging
Obligations, to the extent that any such expense was deducted in computing such Consolidated Net Income; plus 
 (4)
depreciation, depletion and amortization (including amortization of intangibles but excluding amortization of prepaid cash expenses that were paid in a prior period), impairment and other non-cash expenses (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 and amortization, impairment and other non-cash expenses were deducted in computing such Consolidated Net Income; plus 

(5) unrealized non-cash losses resulting from foreign currency balance sheet adjustments required by GAAP to the extent such
losses were deducted in computing such Consolidated Net Income; minus 
 (6) non-cash items increasing such Consolidated Net
Income for such period, other than items that were accrued in the ordinary course of business; minus (to the extent included in determining Consolidated Net Income); and 

(7) the sum of (x) the amount of deferred revenues that are amortized during such period and are attributable to reserves
that are subject to Volumetric Production Payments and (y) 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. 

  
 10 

 “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, but only to the extent of the amount of dividends or 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, partners or members; 

(3) the cumulative effect of a change in accounting principles will be excluded; 

(4) income resulting from transfers of assets (other than cash) between the Company or any of its Restricted Subsidiaries, on
the one hand, and an Unrestricted Subsidiary, on the other hand, will be excluded; 
 (5) any write-downs of non-current
assets will be excluded; provided that any ceiling limitation write-downs under Commission guidelines shall be treated as capitalized costs, as if such write-downs had not occurred; and 

(6) any unrealized non-cash gains or losses or charges in respect of hedge or non-hedge derivatives (including those resulting
from the application of FASB Accounting Standards Codification Topic 815) will be excluded. 
 In addition, notwithstanding the preceding, for the purposes
of Section 4.07 of this Fourth Supplemental Indenture only, there shall be excluded from Consolidated Net Income any nonrecurring charges relating to any premium or penalty paid, write off of deferred finance costs or other charges in
connection with redeeming or retiring any Indebtedness prior to its Stated Maturity. 
 “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 at the time of such nomination or election. 
 “Convertible
Notes” means the $1.25 billion aggregate principal amount of 1.25% convertible senior notes of the Company which are convertible into common stock of the Company and/or cash based on the value of such common stock, issued on the Issue Date,
but excluding any additional Convertible Notes issued under the indenture governing the Convertible Notes. 

  
 11 

 “Convertible Securities” means debt securities of the Company of any of its
Restricted Subsidiaries that are convertible or exchangeable for Equity Interests of the Company (including the Convertible Notes). 

“Corporate Trust Office” means the office of the Trustee at which at any particular time its corporate trust business in
Chicago, Illinois shall be principally administered, which office as of the date of this instrument is located at 2 North LaSalle Street, Suite 1020, Chicago, IL 60602, except that with respect to presentation of Notes for payment or for
registration of transfer or exchange, such term shall mean the office or agency of the Trustee at which at any particular time its corporate agency business shall be conducted, which office at the date of this instrument is located at 101 Barclay
Street, New York, New York 10286; Attention: Corporate Trust Division - Corporate Finance Unit, or, in the case of any of such offices or agency, such other address as the Trustee may designate from time to time by notice to the Holders and the
Company. 
 “Credit Agreement” means that certain Sixth Amended and Restated Credit Agreement, dated as of August 27,
2014, as amended, among WOGC, the Company, the other guarantors named therein, JP Morgan Chase Bank, N.A., as administrative agent, the other financial institutions and lenders parties thereto from time to time, providing for revolving credit
borrowings, including any related notes, guarantees, collateral documents, instruments and agreements executed in connection therewith, and in each case as amended, modified, supplemented, restated, refinanced, renewed, refunded, replaced (whether
at maturity, upon early repayment and termination or thereafter) in whole or in part from time to time including by or pursuant to one or more agreements or indentures, or by means of issuance of debt securities to institutional investors, including
any agreement or indenture that extends the maturity of any Indebtedness thereunder, or increases the amount of available borrowings thereunder (provided that any increase in amounts drawn is otherwise permitted under Section 4.09 of
this Fourth Supplemental Indenture), or adds or changes the borrower or guarantor and whether by the same or any other agent, lender, group of lenders, purchasers or debt holders. 

“Credit Facilities” means one or more debt facilities (including, without limitation, the Credit Agreement), indentures,
commercial paper facilities or capital markets financings, in each case with banks or other institutional lenders or institutional investors providing for revolving credit loans, term loans, receivables financing (including through the sale of
receivables to such lenders or to special purpose entities formed to borrow from (or sell receivables to) such lenders against such receivables) or letters of credit, in each case, as amended, restated, modified, renewed, refunded, replaced or
refinanced (including refinancing with any capital markets transaction or by means of sales of debt securities) in whole or in part from time to time (and whether or not with the original administrative agent, lenders or trustee or another
administrative agent or agents, other lenders or another trustee and whether provided under the original Credit Agreement or any other credit or other agreement or indenture). 

“Custodian” means any receiver, trustee, assignee, liquidator, sequestrator or similar official under any Bankruptcy Law.

 “Default” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of
Default. 

  
 12 

 “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 or redeem 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 4.07 of this Fourth
Supplemental Indenture. 
 “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
Subsidiary” means any Restricted Subsidiary of the Company other than a Foreign 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). 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission
promulgated thereunder. 
 “Exchange Notes” means notes issued in a registered exchange offer pursuant to the Registration
Rights Agreement. 
 “Existing Indebtedness” means the aggregate principal amount of Indebtedness of the Company and its
Restricted Subsidiaries (including the Existing Notes and the Convertible Notes but excluding any Indebtedness under the Credit Agreement which is considered incurred under clause (1) of the second paragraph of Section 4.09) in each case,
in existence on the Issue Date (including any Convertible Notes issued after the Issue Date in compliance with the definition thereof), until such amounts are repaid. 

“Existing Kodiak Notes” means, collectively, the $798 million aggregate principal amount 8.125% senior notes due 2019, the
$4 million aggregate principal amount 5.5% senior notes due 2021 and the $1 million aggregate principal amount 5.5% senior notes due 2022, each co-issued by Whiting Canadian Holding Company ULC (formerly Kodiak Oil & Gas Corp.) and
Whiting US Holding Company, in each case outstanding on the Issue Date. 
 “Existing Senior Notes” means, collectively, the
$1.1 billion aggregate principal amount 5% Senior Notes due 2019 and $1.2 billion aggregate principal amount 5.75% Senior Notes due 2021 of the Company. 

“Existing Senior Subordinated Notes” means the $350 million aggregate principal amount 6.5% Senior Subordinated Notes due
2018 of the Company. 

  
 13 

 “Existing Notes” means, collectively, the Existing Senior Subordinated Notes and
the Existing Senior Notes and the Existing Kodiak Notes. 
 “Fixed Charge Coverage Ratio” means with respect to any
specified Person for any four-quarter reference 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 or redeems any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems preferred stock subsequent to the commencement of the applicable
four-quarter reference period 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 or redemption 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 such period. 
 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
or consolidations and including any related financing transactions, subsequent to the commencement of the applicable four-quarter 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 such period, including any Consolidated Cash Flow and any pro forma expense and cost reductions that have occurred or are reasonably expected to occur, in the reasonable judgment of the chief financial or accounting officer of the
Company (regardless of whether those cost savings or operating improvements could then be reflected in pro forma financial statements in accordance with Regulation S-X promulgated under the Securities Act or any other regulation or policy of the
Commission related thereto); 
 (2) the Consolidated Cash Flow attributable to discontinued operations, as determined in
accordance with GAAP, and operations or businesses disposed of prior to the Calculation Date, will be excluded; and 
 (3)
the Fixed Charges attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses 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. 

“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 any interest attributable to Dollar-Denominated Production Payments but including, without limitation, amortization of debt issuance costs and original issue discount, non-cash interest payments, the interest component of any deferred
payment obligations, the interest component of all payments associated with Capital Lease Obligations, imputed interest 

  
 14 

 
with respect to Attributable Debt, 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 Hedging Obligations; plus 
 (2) the consolidated interest expense of such Person and
its Restricted Subsidiaries that was capitalized during such period; plus 
 (3) any interest expense on Indebtedness of
another Person that is guaranteed by such Person or one of its Restricted Subsidiaries or secured by a Lien on assets of such Person or one of its Restricted Subsidiaries, whether or not such guarantee or Lien is called upon; plus 

(4) all dividends, whether paid or accrued and whether or not 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 of the Company, 

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

“Foreign Subsidiary” means any Restricted Subsidiary of the Company that was not formed under the laws of the United States
or any state of the United States or the District of Columbia. 
 “Fourth Supplemental Indenture” means this Fourth
Supplemental Indenture, dated as of the Issue Date, among the Company, the Guarantors named on the signature page hereof and the Trustee relating to the Notes, as it may be amended from time to time in accordance with this Indenture. 

“GAAP” means generally accepted accounting principles in the United States, which are in effect on the Issue Date. 

“Global Security” means a Security that evidences all or part of the Securities of any series and bears the legend set forth
in Section 205 of the Original Indenture. 
 “Government Securities” means direct obligations of, or obligations
guaranteed by, the United States of America for the payment of which guarantee or obligations the full faith and credit of the United States is pledged. 

The term “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. When used as a
verb, “guarantee” has a correlative meaning. 
 “Guarantors” means each of (1) WOGC, Whiting US Holding
Company, a Delaware corporation, Whiting Canadian Holding Company ULC, a British Columbia unlimited liability company, and Whiting Resources Corporation, a Colorado corporation, and (2) any other Restricted Subsidiary of the Company that
becomes a Guarantor in accordance with Section 4.13 or 10.03 of this Fourth Supplemental Indenture and (c) the respective successors and assigns of 

  
 15 

 
such Restricted Subsidiaries, as required under Article 10 of this Fourth Supplemental Indenture, in each case until such time as any such Restricted Subsidiary shall be released and relieved of
its obligations pursuant to Section 8.02, 8.03 or 10.04 of this Fourth Supplemental Indenture. 
 “Hedging
Obligations” means, with respect to any specified Person, the obligations of such Person incurred in the normal course of business and consistent with past practices and not for speculative purposes under: 

(1) interest rate swap agreements, interest rate cap agreements and interest rate collar agreements entered into with one of
more financial institutions and designed to protect the Person or any of its Restricted Subsidiaries entering into the agreement against fluctuations in interest rates with respect to Indebtedness incurred and not for purposes of speculation; 

(2) foreign exchange contracts and currency protection agreements entered into with one of more financial institutions and
designed to protect the Person or any of its Restricted Subsidiaries entering into the agreement against fluctuations in currency exchanges rates with respect to Indebtedness incurred and not for purposes of speculation; 

(3) any commodity futures contract, commodity option or other similar agreement or arrangement designed to protect against
fluctuations in the price of oil, natural gas or other commodities used, produced, processed or sold by that Person or any of its Restricted Subsidiaries at the time; and 

(4) other agreements or arrangements designed to protect such Person or any of its Restricted Subsidiaries against fluctuations
in interest rates, commodity prices or currency exchange rates. 
 “Holder” means a Person in whose name a Note is
registered. 
 “Indebtedness” means, with respect to any specified Person, any indebtedness of such Person, whether or not
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 bankers’ acceptances; 

(4) representing Capital Lease Obligations; 

(5) representing the balance deferred and unpaid of the purchase price of any property, except any such balance that
constitutes an accrued expense or trade payable; or 
 (6) representing any Hedging Obligations, 

  
 16 

 if and to the extent any of the preceding items (other than letters of credit and Hedging Obligations) would
appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all Indebtedness of others secured by a Lien on any asset of the specified Person (whether
or not such Indebtedness is assumed by the specified Person) and, to the extent not otherwise included, the guarantee by the specified Person of any Indebtedness of any other Person (including, with respect to any Production Payment, any warranties
or guarantees of production or payment by such Person with respect to such Production Payment, but excluding other contractual obligations of such Person with respect to such Production Payment). Subject to the preceding sentence, neither
Dollar-Denominated Production Payments nor Volumetric Production Payments shall be deemed to be Indebtedness. Notwithstanding the foregoing, “Indebtedness” shall exclude indebtedness that has been defeased, satisfied and discharged,
repaid, retired, repurchased or redeemed in accordance with its terms and, to the extent such defeasance, satisfaction and discharge, repayment, retirement, repurchase or redemption constitutes a Restricted Payment, in accordance with the provisions
of Section 4.07 of this Fourth Supplemental Indenture. 
 The amount of any Indebtedness outstanding as of any date will be: 

(1) the accreted value of the Indebtedness, in the case of any Indebtedness issued with original issue discount; 

(2) in the case of any Hedging Obligation, the termination value of the agreement or arrangement giving rise to such Hedging
Obligation that would be payable by such Person at such date; and 
 (3) the principal amount of the Indebtedness, together
with any interest on the Indebtedness that is more than 30 days past due, in the case of any other Indebtedness. 
 “Investment
Grade Rating” means a rating equal to or higher than “Baa3” or the equivalent) by Moody’s and “BBB-” (or the equivalent) by S&P. 

“Initial Notes” means the Notes issued on the Issue Date, together with all other Notes issued upon registration of transfer
of, or in exchange for, such Notes. 
 “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 commission, travel and similar advances to officers and employees 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 of the Company sells or otherwise disposes of any Equity Interests of any direct or indirect Restricted Subsidiary of the Company such that, after giving effect to any such sale or disposition,
such Person is no longer a Restricted Subsidiary of the Company, the Company will be deemed to have made an Investment on the date of any such sale or disposition in an amount equal to the fair market value of the Equity Interests of such Restricted
Subsidiary not sold or disposed of in an amount determined as provided in the final paragraph of Section 4.07 of this Fourth Supplemental 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 made by the Company or such 

  
 17 

 
Subsidiary in such third Person in an amount equal to the fair market value of the Investment held by the acquired Person in such third Person on the date of any such acquisition in an amount
determined as provided in the final paragraph of Section 4.07 of this Fourth Supplemental Indenture. 
 “Issue Date”
means March 27, 2015. 
 “Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security
interest or encumbrance of any kind in respect of such asset, whether or not 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 valid and effective filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction other than a precautionary
financing statement not intended as a security agreement. 
 “Material Change” means an increase or decrease (excluding
changes that result solely from changes in prices and changes resulting from the incurrence of previously estimated future development costs) of more than 25% during a fiscal quarter in the discounted future net revenues from proved crude oil and
natural gas reserves of the Company and its Restricted Subsidiaries, calculated in accordance with clause (1)(a) of the definition of ACNTA; provided, however, that the following will be excluded from the calculation of Material Change:

 (1) any acquisitions during the fiscal quarter of oil and gas reserves that have been estimated by independent petroleum
engineers and with respect to which a report or reports of such engineers exist; and 
 (2) any disposition of oil and gas
properties existing at the beginning of such fiscal quarter that have been disposed of in compliance with Section 4.10 of this Fourth Supplemental Indenture. 

“Material Domestic Subsidiary” means any wholly-owned Domestic Subsidiary that is not a Guarantor at the time of
determination and that at such time together with its Subsidiaries holds assets in excess of 5.0% of the consolidated assets of the Company and its Restricted Subsidiaries, in each case based upon the most recent quarterly financial statements
available to the Company, but excluding the value of the Equity Interests of all of its Domestic Subsidiaries and intercompany debt owed to such Domestic Subsidiary from any other Domestic Subsidiary or the Company. 

“Moody’s” means Moody’s Investors Service, Inc. or any successor to the rating agency business thereof. 

“Net Cash Proceeds,” with respect to any issuance or sale of Capital Stock, means the cash proceeds of such issuance or sale,
net of attorneys’ fees, accountants’ fees, underwriters’ or placement agents’ fees, listing fees, discounts or commissions and brokerage, consultant and other fees and charges actually incurred in connection with such issuance or
sale and net of taxes paid or payable as a result of such issuance or sale (after taking into account any available tax credit or deductions and any tax sharing arrangements). 

  
 18 

 “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 (but not loss), together with any related provision for taxes on such gain (but not loss), realized in connection
with: (a) any Asset Sale; or (b) the disposition of any securities by such Person or any of its Subsidiaries or the extinguishment of any Indebtedness of such Person or any of its Subsidiaries; and 

(2) any extraordinary gain (but not loss), together with any related provision for taxes on such extraordinary gain (but not
loss). 
 “Net Proceeds” means the aggregate cash proceeds and Cash Equivalents received by the Company or any of its
Restricted Subsidiaries in respect of any Asset Sale (including, without limitation, any cash or Cash Equivalents received upon the sale or other disposition of any non-cash consideration received in any Asset Sale), net of: 

(1) the direct costs relating to such Asset Sale, including, without limitation, legal, accounting and investment banking fees,
and sales commissions, and any relocation expenses incurred as a result of the Asset Sale, 
 (2) taxes paid or payable as a
result of the Asset Sale, in each case, after taking into account any available tax credits or deductions and any tax sharing arrangements, 

(3) amounts required to be applied to the repayment of Indebtedness, other than under the Credit Facilities, secured by a Lien
on the properties or assets that were the subject of such Asset Sale, and 
 (4) any reserve for adjustment in respect of the
sale price of such properties or assets established in accordance with GAAP. 
 “Net Working Capital” means: 

(1) all current assets of the Company and its Restricted Subsidiaries, minus 

(2) all current liabilities of the Company and its Restricted Subsidiaries, except current liabilities included in
Indebtedness; 
 in each case, on a consolidated basis and determined in accordance with GAAP. 

“Non-Guarantor Subsidiary” means any Restricted Subsidiary of the Company that is not a Guarantor. 

“Non-Recourse Debt” means Indebtedness: 

(1) as to which neither the Company nor any of its Restricted Subsidiaries (a) provides credit support of any kind
(including any undertaking, agreement or instrument that would constitute Indebtedness) or (b) is directly or indirectly liable as a guarantor or otherwise; 

  
 19 

 (2) no default with respect to which (including any rights that the holders of
the Indebtedness 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 (other than the Notes) of the Company or any of its Restricted Subsidiaries
to declare a default on such other Indebtedness or cause the payment of the Indebtedness to be accelerated or payable prior to its Stated Maturity; and 

(3) the explicit terms of which provide there is no recourse to the stock or assets of the Company or any of its Restricted
Subsidiaries, except solely in circumstances customarily excluded by lenders from exculpation provisions and/or included in separate guaranty or indemnification agreements in non-recourse financings. 

“Notes” means the Initial Notes and the Additional Notes, treated as a single class. 

“Obligations” means any principal, premium, if any, interest (including interest accruing on or after the filing of any
petition in bankruptcy or for reorganization, whether or not a claim for post-filing interest is allowed in such proceeding), penalties, fees, charges, expenses, indemnifications, reimbursement obligations, damages, guarantees, and other liabilities
or amounts payable under the documentation governing any Indebtedness or in respect thereto. 
 “Officer” means, with
respect to any Person, the Chairman of the Board, the Chief Executive Officer, the President, the Chief Operating Officer, the Chief Financial Officer, the Treasurer, any Assistant Treasurer, the Controller, the Secretary, any Assistant Secretary or
any Vice President of such Person. 
 “Officers’ Certificate” means a certificate signed on behalf of the Company by
two Officers of the Company, one of whom must be the principal executive officer, the principal financial officer, the treasurer or the principal accounting officer of the Company, that meets the requirements of Section 102 hereof. 

“Oil and Gas Business” means: 

(1) the acquisition, exploration, development, operation and disposition of interests in minerals, oil, natural gas and other
hydrocarbon properties; 
 (2) the gathering, marketing, treating, processing (but not refining), storage, selling and
transporting of any production from those interests; and 
 (3) any activity necessary, appropriate or incidental to the
activities described above. 
 “Opinion of Counsel” means an opinion from legal counsel who is reasonably acceptable to the
Trustee, that meets the requirements of Section 102 hereof. The counsel may be an employee of or counsel to the Company, any Subsidiary of the Company or the Trustee. 

  
 20 

 The term “outstanding,” when used with respect to the Notes, has the meaning
provided in Section 2.03 of this Fourth Supplemental Indenture. 
 “Pari Passu Indebtedness” means Indebtedness that
ranks equally in right of payment to the Notes, in the case of the Company, or the Subsidiary Guarantees, in the case of any Guarantor (without giving effect to collateral arrangements). 

“Paying Agent” means any Person authorized by the Company to pay the principal of or any premium or interest on any
Securities on behalf of the Company. 
 “Permitted Business Investments” means Investments made in the ordinary course of,
and of a nature that is or shall have become customary in, the Oil and Gas Business, including through agreements, transactions, interests or arrangements that permit one to share risk or costs, comply with regulatory requirements regarding local
ownership or satisfy other objectives customarily achieved through the conduct of the Oil and Gas Business jointly with third parties, including without limitation: 

(1) direct or indirect ownership of crude oil, natural gas, other related hydrocarbon and mineral properties or any interest
therein or gathering, transportation, processing, storage or related systems; and 
 (2) the entry into operating agreements,
joint ventures, processing agreements, working interests, royalty interests, mineral leases, farm-in agreements, farm-out agreements, development agreements, production sharing agreements, area of mutual interest agreements, contracts for the sale,
transportation or exchange of crude oil and natural gas and related hydrocarbons and minerals, unitization agreements, pooling arrangements, joint bidding agreements, service contracts, partnership agreements (whether general or limited), or other
similar or customary agreements, transactions, properties, interests or arrangements and Investments and expenditures in connection therewith or pursuant thereto, in each case made or entered into in the ordinary course of the Oil and Gas Business.

 “Permitted Investments” means: 

(1) any Investment in the Company or in a Restricted Subsidiary of the Company; 

(2) any Investment in Cash Equivalents; 

(3) any Investment by the Company or any Restricted Subsidiary of the Company in a Person, if as a result of such Investment:

 (a) such Person becomes a Restricted Subsidiary of the Company; or 

(b) such Person is merged, consolidated or amalgamated with or into, or transfers or conveys substantially all of its
properties or assets to, or is liquidated into, the Company or a Restricted Subsidiary of the Company; 

  
 21 

 (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 4.10 of this Fourth Supplemental Indenture; 

(5) any Investment in any Person solely in exchange for the issuance of Equity Interests (other than Disqualified Stock) of the
Company; 
 (6) any Investments received in compromise of obligations of trade creditors or customers that were incurred in
the ordinary course of business, including pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer, or as a result of foreclosure by the Company or any of its Restricted
Subsidiaries with respect to any secured Investment in default; 
 (7) Hedging Obligations permitted to be incurred under
Section 4.09 of this Fourth Supplemental Indenture; 
 (8) Permitted Business Investments; 

(9) Investments of a Restricted Subsidiary of the Company acquired after the Issue Date or of an entity merged or consolidated
with or into the Company or such Restricted Subsidiary in a transaction that is not prohibited by Section 5.01 of this Fourth Supplemental Indenture after the Issue Date to the extent that such Investments were not made in contemplation of such
acquisition, merger or consolidation and were in existence on the date of such acquisition, merger or consolidation; 
 (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) payroll, commission, travel, relocation and similar advances to cover matters that are expected at the time of such
advances ultimately to be treated as expenses for accounting purposes and that are made in the ordinary course of business; 

(12) loans or advances to directors, officers, employees or consultants of the Company or any Restricted Subsidiary of the
Company, made in the ordinary course of business consistent with past practices, and as permitted by Section 402 of the Sarbanes-Oxley Act of 2002, the proceeds of which are used to purchase Capital Stock of the Company, or to refinance loans
or advances made pursuant to this clause (12), in an aggregate principal amount not in excess of $4.0 million at any one time outstanding; 

(13) Investments in any Person to the extent such Investments consist of prepaid expenses, negotiable instruments held for
collection and lease, utility and workers’ compensation, performance and other similar deposits made in the ordinary course of business by the Company or any Restricted Subsidiary; 

  
 22 

 (14) Guarantees of performance or other obligations (other than Indebtedness)
arising in the ordinary course in the Oil and Gas Business, including obligations under oil and natural gas exploration, development, joint operating, and related agreements and licenses, concessions or operating leases related to the Oil and Gas
Business; 
 (15) Investments in the Notes as contemplated by the provisions in Section 3.02, 4.10 or 4.15 of this
Fourth Supplemental Indenture or by tender offer, open market purchase, negotiated transaction or otherwise in accordance with applicable securities laws; 

(16) Investments in existence on the Issue Date; and 

(17) 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 subsequent changes in value), when taken together with all other Investments made pursuant to this clause (17) that are at the time outstanding, not to exceed the greater of (a) $250.0 million or
(b) 2.5% of ACNTA. 
 “Permitted Liens” means: 

(1) Liens securing any Indebtedness under any Credit Facility; 

(2) Liens in favor of the Company or the Guarantors; 

(3) Liens on property of a Person existing at the time such Person is merged with or into or consolidated with the Company or
any Restricted Subsidiary of the Company, provided that such Liens were in existence prior to the contemplation of such merger or consolidation and do not extend to any assets other than those of the Person merged into or consolidated with
the Company or the Restricted Subsidiary; 
 (4) Liens on property (including Capital Stock) existing at the time of
acquisition of the property by the Company or any Restricted Subsidiary of the Company, provided that such Liens were in existence prior to the contemplation of such acquisition; 

(5) Liens securing Indebtedness (including Capital Lease Obligations) incurred in connection with the acquisition by the
Company or any Restricted Subsidiary of assets used in the Oil and Gas Business (including the office buildings and other real property used by the Company or such Restricted Subsidiary in conducting its operations), provided that
(i) such Liens attach only to the assets acquired with the proceeds of such Indebtedness, and (ii) such Indebtedness is not in excess of the purchase price of such fixed assets; 

(6) Liens existing on the Issue Date (other than under the Credit Agreement); 

(7) Liens securing Hedging Obligations of the Company or any of its Restricted Subsidiaries; 

(8) any Lien incurred in the ordinary course of business incidental to the conduct of the business of the Company or its
Restricted Subsidiaries or the ownership of 

  
 23 

 
their property (including (a) easements, rights of way and similar encumbrances, (b) rights or title of lessors under leases (other than Capital Lease Obligations), (c) rights of
collecting banks having rights of setoff, revocation, refund or chargeback with respect to money or instruments of the Company or the Restricted Subsidiaries on deposit with or in the possession of such banks, (d) Liens imposed by law,
including Liens under workers’ compensation or similar legislation and mechanics’, carriers’, warehousemen’s, materialmen’s, suppliers’ and vendors’ Liens, (e) Liens incurred to secure performance of
obligations with respect to statutory or regulatory requirements, performance or return-of-money bonds, surety bonds or other obligations of a like nature and incurred in a manner consistent with industry practice, or (f) operators Liens under
joint operating agreements or similar customary agreements in the Oil and Gas Business); 
 (9) Liens securing all
outstanding Notes and the Subsidiary Guarantees thereof; 
 (10) Liens securing Indebtedness incurred to refinance
Indebtedness incurred under clauses (3), (4) or (5) 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 that is the security for a Permitted Lien hereunder;

 (11) Liens incurred in the ordinary course of business of the Company or any Restricted Subsidiary of the Company with
respect to obligations that do not exceed, at the time of incurrence of such Lien, the greater of (a) $250.0 million or (b) 2.5% of ACNTA at any one time outstanding; and 

(12) Liens on Cash Equivalents or other property arising in connection with the defeasance, discharge or redemption of
Indebtedness. 
 “Permitted Refinancing Indebtedness” means any Indebtedness of the Company or any of its Restricted
Subsidiaries issued in exchange for, or the net proceeds of which are used to extend, refinance, renew, replace, defease or refund other Indebtedness of the Company or any of its Restricted Subsidiaries (other than intercompany Indebtedness);
provided that: 
 (1) the principal amount (or accreted value, if applicable) of such Permitted Refinancing
Indebtedness does not exceed the principal amount (or accreted value, if applicable) of the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded (plus all accrued interest on the Indebtedness and the amount of all
expenses and premiums incurred in connection therewith); 
 (2) such Permitted Refinancing Indebtedness has a final maturity
date later than the final maturity date of, and has a Weighted Average Life to Maturity equal to or greater than the Weighted Average Life to Maturity of, the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded; 

(3) if the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded is subordinated in right of payment
to the Notes or the Subsidiary 

  
 24 

 
Guarantees, such Permitted Refinancing Indebtedness is subordinated in right of payment to the Notes or the Subsidiary Guarantees on terms at least as favorable to the Holders as those contained
in the documentation governing the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded; and 

(4) such Indebtedness is not incurred by a Restricted Subsidiary of the Company if the Company is the obligor on the
Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded; provided, however, that a Restricted Subsidiary that is also a Guarantor may guarantee Permitted Refinancing Indebtedness incurred by the Company,
whether or not such Restricted Subsidiary was an obligor or guarantor of the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded. 

Notwithstanding the preceding, any Indebtedness incurred under Credit Facilities pursuant to Section 4.09 of this Fourth Supplemental Indenture shall be
subject only to the refinancing provision in the definition of Credit Facilities and not pursuant to the requirements set forth in the definition of Permitted Refinancing Indebtedness. 

“Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust,
unincorporated organization, limited liability company or government or other entity. 
 “Production Payments” means,
collectively, Dollar-Denominated Production Payments, Volumetric Production Payments and any other grant or transfer by the Company or a Restricted Subsidiary to any Person of a royalty, overriding royalty, net profits interest, 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 where the holder of such interest has recourse solely to such
production or proceeds of production, subject to the obligation of the grantor or transferor to operate and maintain, or cause the subject interests to be operated and maintained, in a reasonably prudent manner or other customary standard or subject
to the obligation of the grantor or transferor to indemnify for environmental, title or other matters customary in the Oil and Gas Business, 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 or other providers of technical services to the Company or a Restricted Subsidiary. 

“Rating Agency” means each of S&P and Moody’s, or if S&P or Moody’s or both shall not make a rating on the
Notes publicly available, a nationally recognized statistical rating agency or agencies, as the case may be, selected by the Company (as certified by a Board Resolution) which shall be substituted for S&P or Moody’s, or both, as the case
may be. 
 “Rating Decline” means the occurrence of a decrease of one or more gradations (including gradations within
rating categories as well as between rating categories) in the rating of the Notes by either Rating Agency. 
 “Redemption
Date”, when used with respect to any Security to be redeemed, means the date fixed for such redemption by or pursuant to this Fourth Supplemental Indenture. 

  
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 “Reporting Failure” means the failure of the Company to file with the Commission
and make available or otherwise deliver to the trustee and each Holder, within the time periods specified in Section 4.03 of this Fourth Supplemental Indenture (after giving effect to any grace period specified under Rule 12b-25 under the
Exchange Act), the periodic reports, information, documents or other reports that the Company may be required to file with the Commission pursuant to such provision. 

“Responsible Officer” means, with respect to the Trustee, any officer assigned to the Corporate Trust Division –
Corporate Finance Unit (or any successor division or unit) of the Trustee located at the Corporate Trust Office of the Trustee having direct responsibility for the administration of this Indenture or to whom any corporate trust matter is referred
because of such person’s knowledge of and familiarity with the particular subject. 
 “Restricted Investment” means an
Investment other than a Permitted Investment. 
 “Restricted Subsidiary” of a Person means any Subsidiary of the referent
Person that is not an Unrestricted Subsidiary. 
 “S&P” refers to Standard & Poor’s Ratings Services, or
any successor to the rating agency business thereof. 
 “Sale and Leaseback Transaction” means an arrangement relating to
property owned by the Company or a Restricted Subsidiary on the Issue Date or thereafter acquired by the Company or a Restricted Subsidiary whereby the Company or a Restricted Subsidiary transfers such property to a Person and the Company or a
Restricted Subsidiary leases it from such Person. 
 “Securities Act” means the Securities Act of 1933, as amended. 

“Significant Subsidiary” means any Subsidiary that would be a “significant subsidiary” as defined in Article 1,
Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act, as such Regulation is in effect on the Issue Date. 

“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 original documentation governing such Indebtedness, 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. 
 “Subsidiary” means, with respect to any specified Person: 

(1) any corporation, association or other business entity (other than a partnership) of which more than 50% of the total voting
power of Voting Stock is at the time owned or controlled, directly or through another Subsidiary, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and 

(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), but only if such Person and its Subsidiaries are entitled to receive more than 20% of the assets
of such partnership upon its dissolution. 

  
 26 

 “Subsidiary Guarantees” means the joint and several guarantees of the
Company’s payment Obligations under this Indenture and the Notes issued by the Guarantors pursuant to Article 10 of this Fourth Supplemental Indenture. 

“TIA” means the Trust Indenture Act. 

“Treasury Rate” means the yield to maturity at the time of computation of the United States Treasury securities with a
constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to the Redemption Date (or, if such Statistical Release is no
longer published, any publicly available source or similar market data)) most nearly equal to the period from the Redemption Date to the final maturity date of the Notes; provided, however, that if the period from the Redemption Date
to such final maturity date is not equal to the constant maturity of a United States Treasury security for which a weekly average yield is given, the Treasury Rate shall be obtained by linear interpolation (calculated to the nearest one-twelfth of a
year) from the weekly average yields of United States Treasury securities for which such yields are given, except that if the period from the Redemption Date to such final maturity date is less than one year, the weekly average yield on actually
traded United States Treasury securities adjusted to a constant maturity of one year shall be used. 
 “Uniform Commercial
Code” means the New York Uniform Commercial Code as in effect from time to time. 
 “Unrestricted Subsidiary”
means any Subsidiary of the Company (other than WOGC) that is designated by the Board of Directors as an Unrestricted Subsidiary pursuant to a Board Resolution, but only to the extent that such Subsidiary: 

(1) has no Indebtedness other than Non-Recourse Debt; 

(2) is not party to any agreement, contract, arrangement or understanding with the Company or any Restricted Subsidiary of the
Company unless the terms of any such agreement, contract, arrangement or understanding are no less favorable to the Company or such Restricted Subsidiary than those that might be obtained at the time from Persons who are not Affiliates of the
Company; 
 (3) 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 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 

(4) has not guaranteed or otherwise directly or indirectly provided credit support for any Indebtedness of the Company or any
of its Restricted Subsidiaries. 
 Any designation of a Subsidiary of the Company as an Unrestricted Subsidiary will be evidenced to the
Trustee by filing with the Trustee the Board Resolution giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the 

  
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preceding conditions and was permitted by Section 4.07 of this Fourth Supplemental Indenture. If, at any time, any Unrestricted Subsidiary would fail to meet the preceding requirements as an
Unrestricted Subsidiary, 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 of the Company as of such date and, if
such Indebtedness is not permitted to be incurred as of such date under Section 4.09 of this Fourth Supplemental Indenture, the Company will be in default of such covenant. 

“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 Person as of any date means the Capital
Stock of such Person that is at the time entitled (without regard to the occurrence of any contingency) 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 
 (2) the then outstanding principal amount of such Indebtedness. 

“WOGC” means Whiting Oil and Gas Corporation, a Delaware corporation, and its successors. 

Section 1.02 Other Definitions. 
  

			
	 Term
	  	Defined in Section
	“Affiliate Transaction”	  	4.11
	“Asset Sale Offer”	  	3.04
	“Change of Control Offer”	  	4.15
	“Change of Control Payment”	  	4.15
	“Change of Control Purchase Date”	  	4.15
	“Change of Control Settlement Date”	  	4.15
	“Company”	  	Preamble
	“Covenant Defeasance”	  	8.03
	“Discharge”	  	8.08
	“Event of Default”	  	6.01
	“Excess Proceeds”	  	4.10
	“incur”	  	4.09
	“Indenture”	  	Recitations
	“Legal Defeasance”	  	8.02
	“Offer Amount”	  	3.04

  
 28 

			
	 “Offer Period”
		3.04
	 “Original Indenture”
		Preamble
	 “Payment Default”
		6.01
	 “Permitted Debt”
		4.09
	 “Restricted Payments”
		4.07
	 “Securities”
		Recitations
	 “Settlement Date”
		3.04
	 “Termination Date”
		3.04
	 “Trustee”
		Preamble

 Section 1.03 Rules of Construction. 

Unless the context otherwise requires, in construing this Fourth Supplemental Indenture: 

(1) a term has the meaning assigned to it herein or, if not assigned herein, then in the Original Indenture; 

(2) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP; 

(3) “or” is not exclusive; 

(4) words in the singular include the plural, and in the plural include the singular; 

(5) provisions apply to successive events and transactions; 

(6) references to sections of or rules under the Securities Act or the Exchange Act shall be deemed to include substitute,
replacement or successor sections or rules adopted by the Commission from time to time; and 
 (7) “herein,”
“hereof” and other words of similar import refer to this Fourth Supplemental Indenture as a whole (as amended or supplemented from time to time) and not to any particular Article, Section or other subdivision, and references to specific
Sections, Articles or other subdivisions without contrary reference shall refer to Sections, Articles or subdivisions of this Fourth Supplemental Indenture, as applicable. 

Section 1.04 Incorporation by Reference of Trust Indenture Act. This Fourth Supplemental Indenture is subject to the mandatory provisions of the
TIA which are incorporated by reference in and made a part of this Fourth Supplemental Indenture. The following TIA terms have the following meanings: 

(1) “Commission” means the SEC; 

(2) “indenture securities” means the Notes and the Guaranties; 

(3) “indenture security holder” means a Holder; 

(4) “indenture to be qualified” means this Fourth Supplemental Indenture; 

  
 29 

 (5) “indenture trustee” or “institutional trustee” means the
Trustee; and 
 (6) “obligor” on the indenture securities means the Company, each Guarantor and any other obligor
on the indenture securities. 
 All other Trust Indenture Act terms used in this Fourth Supplemental Indenture that are defined by the Trust Indenture Act,
defined by Trust Indenture Act reference to another statute or defined by Commission rule have the meanings assigned to them by such definitions. 

ARTICLE 2 
 THE NOTES 

Section 2.01 Creation and Form. 

Pursuant to Sections 201 and 301 of the Original Indenture, there is hereby created a new series of Securities designated as the “6.25%
Senior Notes due 2023” (which are herein referred to as the “Notes” for purposes of this Fourth Supplemental Indenture). The Notes shall be subject to the provisions of the Appendix hereto, shall be substantially in the form specified
in Exhibit A to this Fourth Supplemental Indenture, shall have the terms set forth therein and shall be entitled to the benefits of the other provisions of the Original Indenture as modified by this Fourth Supplemental Indenture and specified
herein. 
 Section 2.02 Execution and Authentication. 

On the Issue Date, the Trustee shall authenticate and deliver $750,000,000 of Initial Notes and, at any time and from time to time thereafter,
the Trustee shall authenticate and deliver Additional Notes for original issue, in each case upon the Trustee’s receipt of a Company Order in accordance with Section 303 of the Original Indenture. Such order shall specify the aggregate
principal amount of the Notes to be authenticated and the date on which the original issue of Notes is to be authenticated and, in the case of an issuance of Additional Notes pursuant to Section 2.05 of this Fourth Supplemental Indenture after
the Issue Date, shall certify that such issuance is in compliance with such Section 2.05 and Section 4.09 hereof. The Notes shall be issued initially in the form of Global Securities, for which The Depository Trust Company shall act as
Depositary, as more fully set forth in the Appendix. Notes in the form of Global Securities shall bear the legends set forth on the form of Note attached hereto and such other legends as may be specified in the Appendix. 

Section 2.03 Outstanding Notes. 

Notes outstanding at any time are all Notes authenticated by the Trustee except for those canceled by it, those delivered to it for
cancellation and those described in this Section as not outstanding. Except as otherwise provided in TIA §316(a), a Note does not cease to be outstanding because the Company or an Affiliate of the Company holds the Note. 

If a Note is replaced pursuant to Section 306 of the Original Indenture, it ceases to be outstanding unless the Trustee and the Company
receive proof satisfactory to them that the replaced Note is held by a bona fide purchaser. 

  
 30 

 If the Paying Agent segregates and holds in trust, in accordance with this Indenture, by 11:00
a.m. New York time, on a Redemption Date or other maturity date money sufficient to pay all principal, premium, if any, and interest payable on that date with respect to the Notes (or portions thereof) to be redeemed or otherwise maturing, as the
case may be, then on and after that date such Notes (or portions thereof) cease to be outstanding and interest on them ceases to accrue. 

Notes purchased 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 the Section 4.15 will have the status of Notes issued and outstanding. 

Section 2.04 CUSIP Numbers. 
 The
Company in issuing the Notes may use “CUSIP” numbers and corresponding “ISINs” (if then generally in use) and, if so, the Trustee shall use “CUSIP” numbers and corresponding “ISINs” in notices of redemption as
a convenience to Holders; provided, however, that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Notes or as contained in any notice of a redemption and that
reliance may be placed only on the other identification numbers printed on the Notes, and any such redemption shall not be affected by any defect in or omission of such numbers. 

Section 2.05 Issuance of Additional Notes. 

The Company shall be entitled, subject to its compliance with Section 4.09 of this Fourth Supplemental Indenture, to issue Additional
Notes under this Indenture which shall have identical terms as the Initial Notes issued on the Issue Date, other than with respect to the date of issuance and issue price. The Initial Notes issued on the Issue Date and any Additional Notes shall be
treated as a single class for all purposes under this Indenture, including, without limitation, waivers, amendments, redemptions and offers to purchase; provided, however, that if any Additional Notes are not fungible with the Initial
Notes for U.S. federal income tax purposes, such Additional Notes will be issued as a separate series under this Indenture and will have a separate CUSIP number and ISIN from the Initial Notes. 

ARTICLE 3 
 REDEMPTION AND PURCHASE

 Section 3.01 Redemption and Purchase. 

The Notes shall be subject to redemption and purchase by the Company pursuant to the provisions of Article Eleven of the Original Indenture and
this Article 3. Section 1104 of the Original Indenture, inasmuch as it relates to the Notes is hereby modified by (1) replacing the word “transmitted” in the first sentence of such Section with the phrase “mailed by
first-class mail or otherwise delivered in accordance with the applicable procedures of the Depositary”, and (2) adding the following sentence at the end of such Section: 

“Notices of redemption may, in the Company’s discretion, be subject to one or more conditions precedent.” 

  
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 Section 3.02 Optional Redemption. 

(a) Except as set forth in this clause (a) or in Section 4.15 of this Fourth Supplemental Indenture, the Company shall not have the
option to redeem the Notes prior to January 1, 2023. At any time prior to January 1, 2023, the Company may on any one or more occasions redeem the Notes, in whole or in part, at a redemption price equal to 100% of the principal amount
thereof plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the Redemption Date (subject to the right of Holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior
to the Redemption Date). 
 The Company shall determine any Applicable Premium and shall notify the Trustee thereof in writing at least two
Business Days in advance of the payment date thereof. The Trustee shall have no responsibility for any calculation of any such amounts and may rely conclusively on the Company’s determinations thereof. 

(b) Notwithstanding the provisions of clause (a) of this Section 3.02, at any time on and after January 1, 2023, the Company may
on any one or more occasions redeem the Notes, in whole or in part, at the redemption price of 100% of the aggregate principal amount thereof, together with accrued and unpaid interest, if any, to the Redemption Date (subject to the right of Holders
of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Redemption Date). 
 Section 3.03
Mandatory Redemption. 
 Except as set forth under Sections 4.10 and 4.15 hereof, the Company shall not be required to make mandatory
redemption or sinking fund payments with respect to the Notes or to repurchase the Notes at the option of the Holders. 
 Section 3.04 Offer to
Purchase by Application of Excess Proceeds. 
 In the event that, pursuant to Section 4.10 hereof, the Company shall be required to
commence an offer to all Holders to purchase Notes (an “Asset Sale Offer”), it shall follow the procedures specified below. 
 The
Asset Sale Offer shall remain open for a period of 20 Business Days following its commencement and no longer, except to the extent that a longer period is required by Applicable Law (the “Offer Period”). No later than five Business Days
after the termination of the Offer Period (the “Settlement Date”), the Company shall purchase and pay for the principal amount of Notes required to be purchased pursuant to Section 4.10 hereof (the “Offer Amount”) or, if
less than the Offer Amount has been tendered, all Notes validly tendered in response to the Asset Sale Offer. Payment for any Notes so purchased shall be made in the manner prescribed in the Notes. 

Upon the commencement of an Asset Sale Offer, the Company shall send, by first class mail, (or otherwise deliver in accordance with the
applicable procedures of the Depositary) a notice to each of the Holders, with a copy to the Trustee. The notice shall contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Asset Sale Offer.

  
 32 

 
The Asset Sale Offer shall be made to all Holders. The notice, which shall govern the terms of the Asset Sale Offer, shall state: 

(a) that the Asset Sale Offer is being made pursuant to this Section 3.04 and Section 4.10 hereof and the length of
time the Asset Sale Offer shall remain open, including the time and date the Asset Sale Offer will terminate (the “Termination Date”); 

(b) the Offer Amount and the purchase price; 

(c) that any Note not tendered or accepted for payment shall 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
shall cease to accrue interest after the Settlement Date; 
 (e) that Holders electing to have a Note purchased pursuant to
an Asset Sale Offer may only elect to have all of such Note purchased and may not elect to have only a portion of such Note purchased; 

(f) that Holders electing to have a Note purchased pursuant to any Asset Sale Offer shall be required to surrender the Note,
with the form entitled “Option of Holder to Elect Purchase” on the reverse of the Note completed, to the Company or a Paying Agent at the address specified in the notice, before the Termination Date; 

(g) that Holders shall be entitled to withdraw their election if the Company or the Paying Agent, as the case may be, receives,
prior to the Termination Date, 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; 
 (h) that, if the aggregate principal amount of Notes surrendered by Holders, and Pari Passu
Indebtedness surrendered by holders or lenders, collectively, exceeds the amount the Company is required to repurchase, the Trustee shall select the Notes and Pari Passu Indebtedness to be purchased on a pro rata basis on the basis of the aggregate
of the aggregate accreted value (if issued with original issue discount) or principal amount of tendered Notes and Pari Passu Indebtedness (provided that the selection of such Pari Passu Indebtedness shall be made pursuant to the terms of
such Pari Passu Indebtedness) (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000 or any integral multiple of $1,000 in excess thereof will be purchased). Upon completion of each Asset
Sale Offer, the amount of Excess Proceeds will be reset at zero; and 
 (i) that Holders whose Notes were purchased only in
part shall be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered (or transferred by book-entry transfer). 

If any of the Notes subject to an Asset Sale Offer is in the form of a Global Note, then the Company shall modify such notice to the extent
necessary to accord with the procedures of the Depositary applicable to repurchases. 

  
 33 

 Promptly after the Termination Date, the Company shall, to the extent lawful, accept for payment
Notes or portions thereof tendered pursuant to the Asset Sale Offer in the aggregate principal amount required by Section 4.10 hereof, and prior to the Settlement Date it shall deliver to the Trustee 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 3.04 and Section 4.10 hereof. On the Settlement Date, the Company or the Paying Agent, as the case may be, shall 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 shall issue a new Note, and the Trustee shall authenticate and mail or deliver 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 shall publicly announce the
results of the Asset Sale Offer on or before the Settlement Date. 
 ARTICLE 4 

COVENANTS 
 Except for
Section 1003, the provisions of Article Ten of the Original Indenture shall not apply to the Notes, and in lieu thereof the following provisions of this Article 4 shall apply to the Notes. 

Section 4.01 Payment of Notes. 
 The
Company shall pay or cause to be paid the principal of, premium, if any, and interest on the Notes on the dates and in the manner provided in the Notes. Principal, premium, if any, and interest shall be considered paid on the date due if the Paying
Agent, if other than the Company or a Guarantor, holds as of 11:00 a.m. New York time on the due date money deposited by the Company or a Guarantor in immediately available funds and designated for and sufficient to pay all principal, premium, if
any, and interest then due. 
 The Company shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law)
on overdue principal at the rate equal to the interest rate on the Notes to the extent lawful; it shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (without regard to
any applicable grace period), at the same rate to the extent lawful. 
 Section 4.02 Maintenance of Office or Agency. 

The Company shall maintain an office or agency (which may be an office of the Trustee or an affiliate of the Trustee) where Notes may be
presented or surrendered for payment and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served. The Company shall give prompt written notice to the Trustee of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made
or served at the Corporate Trust Office of the Trustee. 
 The Company may also from time to time designate one or more other offices or
agencies where the Notes may be presented or surrendered for any or all such purposes and may from 

  
 34 

 
time to time rescind such designations. Further, if at any time there shall be no such office or agency in the City of New York where the Notes may be presented or surrendered for payment, the
Company shall forthwith designate and maintain such an office or agency in the City of New York, in order that the Notes shall at all times be payable in the City of New York. The Company shall give prompt written notice to the Trustee of any such
designation or rescission and of any change in the location of any such other office or agency. 
 The Company hereby appoints the Trustee
as Paying Agent and designates the Corporate Trust Office of the Trustee as one such office or agency of the Company in accordance with Section 301 of the Original Indenture. 

Section 4.03 Reports. 
 (a)
Notwithstanding that the Company may not be subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, so long as any Notes are outstanding, the Company will file with the Commission (unless the Commission will not accept
such a filing) for public availability within the time period specified (after giving effect to all applicable grace periods) in the Commission’s rules and regulations under the Exchange Act and, within 10 Business Days of filing the same with
the Commission, furnish to the Trustee and, upon its request, to any of the Holders: 
 (1) all quarterly and annual
financial and other information with respect to the Company and its Subsidiaries that would be required to be contained in a filing with the Commission on Forms 10-Q and 10-K if the Company were required to file such forms, including a
“Management’s Discussion and Analysis of Financial Condition and Results of Operations” and, with respect to the annual information only, a report on the annual financial statements by the Company’s certified independent
accountants and summary data relating to proved reserves required by the Commission’s rules; and 
 (2) all current
reports that would be required to be filed with the Commission on Form 8-K if the Company were required to file such reports. 
 The Company’s filing
of any such information, document or report with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval (or “EDGAR”) system or any successor thereto shall satisfy the reporting obligations described above. 

The Company shall at all times comply with TIA § 314(a). 

(b) If the Company has designated any of its Subsidiaries as Unrestricted Subsidiaries, then the quarterly and annual financial information
required by Section 4.03(a) shall include a reasonably detailed presentation, either on the face of the financial statements or in the footnotes to the financial statements 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 of the Company. 

(c) If, at any time, the Company is not subject to the reporting requirements of the Exchange Act, it will, so long as any of the Notes will,
at such time, constitute “restricted 

  
 35 

 
securities” within the meaning of Rule 144(a)(3) under the Securities Act, upon the written request of a Holder, beneficial owner or prospective purchaser of the Notes, promptly furnish such
Holder, Beneficial Owner or prospective purchaser the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of the notes pursuant to Rule 144A, as such rule may be amended from time to
time. The Company will take such further action as any Holder or Beneficial Owner of such Notes may reasonably request to the extent from time to time required to enable such holder or beneficial owner to sell the notes in accordance with Rule 144A.

 Section 4.04 Compliance Certificate. 

(a) The Company shall deliver to the Trustee, within 90 days after the end of each fiscal year (beginning with the year ending
December 31, 2015), an Officers’ Certificate stating that a review of the activities of the Company and its Restricted Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers with a view to
determining whether the Company has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to each such Officer signing such certificate, that to the best of his or her knowledge the Company has kept,
observed, performed and fulfilled each and every covenant contained in this Indenture and is not in default in the performance or observance of any of the terms, provisions and conditions of this Indenture (or, if a Default or Event of Default with
respect to the Notes shall have occurred, describing all such Defaults or Events of Default of which he or she may have knowledge and what action the Company is taking or proposes to take with respect thereto) and that to the best of his or her
knowledge no event has occurred and remains in existence by reason of which payments of interest on the Notes are prohibited or if such event has occurred, a description of the event and what action the Company is taking or proposes to take with
respect thereto. 
 (b) The Company shall, so long as any of the Notes are outstanding, deliver to the Trustee, forthwith upon any Officer
becoming aware of any Default or Event of Default with respect to the Notes, 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 4.05 Taxes. 
 The Company
shall pay, and shall cause each of its Subsidiaries to pay, prior to delinquency, all material 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. 
 Section 4.06 Stay, Extension and Usury Laws. 

Each of the Company and each of the Guarantors covenants (to the extent that it may lawfully do so) that it shall not at any time insist upon,
plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the performance of this Indenture; and the
Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it shall not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the
Trustee, but shall suffer and permit the execution of every such power as though no such law has been enacted. 

  
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 Section 4.07 Limitation on Restricted Payments. 

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 to which the Company or any of its Restricted Subsidiaries is a party) 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 or payable to the Company or
a Restricted Subsidiary of the Company); 
 (2) purchase, redeem or otherwise acquire or retire for value (including, without
limitation, in connection with any merger or consolidation to which the Company is a party) any Equity Interests or Convertible Securities (in the case of Convertible Securities, only that amount paid in cash in excess of the principal amount
thereof and accrued and unpaid interest thereon) of the Company or any direct or indirect parent of the Company (other than with the Net Cash Proceeds of a substantially concurrent sale of Equity Interests (other than Disqualified Stock) of the
Company; provided, that such Net Cash Proceeds shall be excluded from clause 3(b) of the next succeeding paragraph); 

(3) make any principal payment on or with respect to, or purchase, redeem, defease or otherwise acquire or retire for value,
any Indebtedness that is subordinated to the Notes or the Subsidiary Guarantees (other than Indebtedness of the Company owing to and held by any Guarantor or Indebtedness of a Guarantor owing to and held by the Company or any other Guarantor
permitted under clause (6) of Section 4.09) prior to any scheduled repayment or scheduled maturity, except a payment, purchase, redemption, defeasance or other acquisition of any such Indebtedness in anticipation of satisfying a sinking
fund obligation, principal installment or the Stated Maturity thereof, in each case, due within one year of the date of such payment, purchase, redemption, defeasance or other acquisition; or 

(4) make any Restricted Investment (all such payments and other actions set forth in these 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: 
 (1) no Default or Event of Default has occurred and is continuing or would occur as a consequence of
such Restricted Payment; 
 (2) 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 

  
 37 

 
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 the first
paragraph of Section 4.09; and 
 (3) such Restricted Payment, together with the aggregate amount of all other
Restricted Payments made by the Company and its Restricted Subsidiaries after May 11, 2004 (excluding Restricted Payments permitted by clauses (2), (3), (4), (5). (6), (7) and (8) of the next succeeding paragraph), is 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 April 1, 2004 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 the aggregate Net Cash Proceeds received by the Company
(including the fair market value of any Additional Assets to the extent acquired in consideration of Equity Interests of the Company (other than Disqualified Stock)) since May 11, 2004 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), plus 

(c) to the extent that any Restricted Investment that was made after May 11, 2004 is sold for cash or otherwise liquidated
or repaid for cash, the lesser of (i) the cash return of capital with respect to such Restricted Investment (less the cost of disposition, if any) and (ii) the initial amount of such Restricted Investment, plus 

(d) to the extent that any Unrestricted Subsidiary of the Company is redesignated as a Restricted Subsidiary after May 11,
2004, the lesser of (i) the fair market value of the Company’s Investment in such Subsidiary as of the date of such redesignation or (ii) such fair market value as of the date on which such Subsidiary was originally designated as an
Unrestricted Subsidiary. 
 The preceding provisions will not prohibit: 

(1) the payment of any dividend or distribution or the consummation of any irrevocable redemption of debt that is subordinate
to the Notes, within 60 days after the date of declaration of such dividend or the delivery of any irrevocable notice of redemption, as the case may be, if the dividend, distribution or redemption payment on the date of declaration or the date of
the notice of redemption, as the case may be, would have complied with the provisions of this Indenture; 

  
 38 

 (2) the redemption, repurchase, retirement, defeasance or other acquisition of
any subordinated Indebtedness of the Company or any Guarantor or of any Equity Interests of the Company in exchange for, or out of the Net Cash Proceeds of the substantially concurrent sale (other than to a Subsidiary of the Company) of, Equity
Interests of the Company (other than Disqualified Stock), with a sale being deemed substantially concurrent if such redemption, repurchase, retirement, defeasance or acquisition occurs not more than 120 days after such sale; provided that the
amount of any such Net Cash Proceeds that are utilized for any such redemption, repurchase, retirement, defeasance or other acquisition will be excluded from clause (3)(b) of the preceding paragraph; 

(3) the defeasance, redemption, repurchase, retirement or other acquisition of subordinated Indebtedness of the Company or any
Guarantor with the Net Cash Proceeds from an incurrence of, or in exchange for, Permitted Refinancing Indebtedness; 
 (4)
the payment of any dividend or distribution by a Restricted Subsidiary of the Company to the holders of its Equity Interests on a pro rata basis; 

(5) the redemption, repurchase or other acquisition or retirement for value of any Equity Interests of the Company or any
Restricted Subsidiary of the Company held by any current or former director, officer, employee or consultant of the Company or any of its Restricted Subsidiaries pursuant to any equity subscription agreement or plan, stock option agreement or
similar agreement or plan; provided that the aggregate price paid for all such repurchased, redeemed, acquired or retired Equity Interests may not exceed $4.0 million in any calendar year (with unused amounts in any calendar year being
carried over to succeeding calendar years up to a maximum of $8.0 million in any calendar year); 
 (6) the acquisition of
Equity Interests by the Company in connection with the exercise of stock options or stock appreciation rights or other equity-based awards by way of cashless exercise; 

(7) the purchase, repurchase, redemption, defeasance or other acquisition or retirement for value of subordinated Indebtedness
of the Company or any Restricted Subsidiary (a) at a purchase price not greater than 101.0% of the principal amount thereof (plus accrued and unpaid interest) in the event of a Change of Control Triggering Event in accordance with provisions
similar to Section 4.15 or (b) at a purchase price not greater than 100.0% of the principal amount thereof (plus accrued and unpaid interest) in accordance with provisions similar to Section 4.10; provided that, prior to or
simultaneously with such purchase, repurchase, redemption, defeasance or other acquisition or retirement, the Company has made the Change of Control Offer or Asset Sale Offer, as applicable, as provided in such covenants with respect to the Notes
and has completed the repurchase or redemption of all Notes validly tendered for payment in connection with such Change of Control Offer or Asset Sale Offer; 

  
 39 

 (8) the payment of cash in lieu of fractional shares of Capital Stock in
connection with any transaction otherwise permitted under this Section 4.07; or 
 (9) other Restricted Payments in an
aggregate amount since May 11, 2004 not to exceed $50.0 million; 
 provided, however, that at the time of, and after giving effect
to, any Restricted Payment permitted under the preceding clause (9), no Default or Event of Default shall have occurred and be continuing or would be caused thereby. 

The amount of all Restricted Payments (other than cash) will be the fair market value on the date of the Restricted Payment of the asset(s) or
securities proposed to be transferred or issued by the Company or such Restricted Subsidiary, as the case may be, pursuant to the Restricted Payment. The fair market value of any assets or securities that are required to be valued by this
Section 4.07 will be determined, in the case of amounts under $50.0 million, in good faith by an officer of the Company and, in the case of amounts of $50.0 million or more, by the Board of Directors of the Company, whose determination shall be
evidenced by a Board Resolution. The amount of any Restricted Payment paid in cash shall be its face amount. Not later than the date of making any Restricted Payment (excluding any Restricted Payment described in the preceding clause (2), (3), (4),
(5), (6), (7) or (8)) in excess of $50.0 million, the Company will deliver to the Trustee an Officers’ Certificate stating that such Restricted Payment is permitted and setting forth the basis upon which the calculations required by
this Section 4.07 were computed. For purposes of determining compliance with this Section 4.07, in the event that a Restricted Payment meets the criteria of more than one of the categories of Restricted Payments described in the preceding
clauses (1) through (9), or is entitled to be made pursuant to the first paragraph of this Section 4.07, the Company will be permitted to divide or classify (or later divide, classify or reclassify in whole or in part in its sole
discretion) such Restricted Payment in any manner that complies with this Section 4.07. 
 Section 4.08 Limitation on Dividend and Other
Payment Restrictions Affecting Subsidiaries. 
 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 consensual restriction on the ability of any Restricted Subsidiary to: 

(1) pay dividends or make any other distributions on its Capital Stock to the Company or any of its Restricted Subsidiaries (it
being understood that the priority of any preferred stock in receiving dividends or liquidating distributions prior to dividends or liquidating distributions being paid on common stock shall not be deemed a restriction on the ability to pay
dividends or make distributions on Capital Stock), or pay any Indebtedness or other obligations owed to the Company or any of its Restricted Subsidiaries; 

(2) make loans or advances to the Company or any of its Restricted Subsidiaries (it being understood that the subordination of
loans or advances made to the Company or any Restricted Subsidiary to other Indebtedness incurred by the Company or any Restricted Subsidiary shall not be deemed a restriction on the ability to make loans or advances); or 

  
 40 

 (3) transfer any of its properties or assets to the Company or any of its
Restricted Subsidiaries. 
 However, the preceding restrictions of this Section 4.08 will not apply to encumbrances or restrictions
existing under or by reason of: 
 (1) agreements governing Existing Indebtedness, Capital Stock and Credit Facilities as in
effect on the Issue Date and any amendments, modifications, restatements, renewals, increases, supplements, refundings, replacements or refinancings of those agreements; provided, that the amendments, modifications, restatements, renewals,
increases, supplements, refundings, replacements or refinancings are not materially more restrictive, taken as a whole, with respect to such encumbrances and restrictions than those contained in the applicable agreements or instruments on the Issue
Date as determined in good faith by the Company; 
 (2) this Indenture, the Notes, the Exchange Notes and the Subsidiary
Guarantees; 
 (3) Applicable Law, rule, regulation, order, approval, license, permit or similar restriction; 

(4) 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, 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,
provided that, in the case of Indebtedness, such Indebtedness was permitted by the terms of this Indenture to be incurred, and any amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings of
those agreements; provided, further, that the amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings are not materially more restrictive, taken as a whole, with respect to such
encumbrances and restrictions than those contained in those agreements on the date of such acquisition as determined in good faith by the Company; 

(5) customary non-assignment provisions in leases entered into in the ordinary course of business and consistent with past
practices; 
 (6) Capital Lease Obligations or purchase money obligations, in each case for property acquired in the ordinary
course of business that impose restrictions on that property of the nature described in clause (3) of the preceding paragraph; 

(7) any agreement for the sale or other disposition of a Restricted Subsidiary of the Company that restricts distributions
and/or transfers of properties and assets by that Restricted Subsidiary pending its sale or other disposition; 
 (8)
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 as determined in good faith by the Company; 

  
 41 

 (9) Liens securing Indebtedness otherwise permitted to be incurred under the
provisions of Section 4.12 hereof that limit the right of the debtor to dispose of the assets subject to such Liens; 

(10) provisions with respect to the disposition or distribution of assets or property in joint venture agreements, asset sale
agreements, stock sale agreements, agreements respecting Permitted Business Investments and other similar agreements entered into (a) in the ordinary course of business or (b) with the Company’s approval by its Board of Directors,
which limitation is applicable only to property or Capital Stock that are subject to such agreements; 
 (11) restrictions on
cash, Cash Equivalents or other deposits or net worth imposed by customers or suppliers under contracts entered into in the ordinary course of business; 

(12) restrictions on the sale, lease or transfer of property or assets arising or agreed to in the ordinary course of business,
not relating to any Indebtedness, and that do not, individually or in the aggregate, detract from the value of property or assets of the Company or any Restricted Subsidiary in any manner material to the Company and the Restricted Subsidiaries taken
as a whole; 
 (13) Hedging Obligations permitted to be incurred under Section 4.09 hereof; 

(14) with respect to any Restricted Subsidiary incorporated or organized outside the United States, any encumbrance or
restriction contained in the terms of any Indebtedness or any agreement pursuant to which such Indebtedness was incurred if either (a) the encumbrance or restriction applies only in the event of a payment default or a default with respect to a
financial covenant in such Indebtedness or agreement or (b) the Company determines that any such encumbrance or restriction will not materially affect the Company’s ability to make principal or interest payments on the Notes, as determined
in good faith by the Board of Directors of the Company, whose determination shall be conclusive; and 
 (15) encumbrances or
restrictions contained in agreements governing Indebtedness, Disqualified Stock, or preferred stock, as applicable, 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 4.09, provided that the provisions relating to such encumbrance or restriction contained in such Indebtedness, Disqualified Stock or preferred stock, as the case may be, are not materially less
favorable to the Company taken as a whole, as determined by the Board of Directors of the Company in good faith, than the provisions contained in the Credit Agreement and in this Indenture as in effect on the Issue Date. 

  
 42 

 Section 4.09 Limitation on Incurrence of Indebtedness and Issuance of Preferred Stock. 

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”) any Indebtedness (including Acquired Debt), neither the Company nor any Guarantor will issue any Disqualified
Stock, and the Company will not permit any Non-Guarantor Subsidiary to issue any shares of preferred stock; provided, however, that the Company and any Restricted Subsidiary may incur Indebtedness (including Acquired Debt) or issue
Disqualified Stock, and any Restricted Subsidiary may issue preferred stock, if 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 would have been at least 2.0 to 1.0, 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 Disqualified Stock or preferred stock had been issued, as the case may be, at the beginning of such four-quarter period. 

The first paragraph of this Section 4.09 will not prohibit the incurrence of any of the following items of Indebtedness (collectively,
“Permitted Debt”): 
 (1) the incurrence by the Company or any of its Restricted Subsidiaries of additional
Indebtedness (including letters of credit) under one or more Credit Facilities in an aggregate principal amount at any one time outstanding under this clause (1) (with letters of credit being deemed to have a principal amount equal to the
maximum available amount thereunder) not to exceed an amount equal to the greater of (a) $3.0 billion or (b) 30.0% of ACNTA as of the date of such incurrence; 

(2) the incurrence by the Company or any of its Restricted Subsidiaries of the Existing Indebtedness; 

(3) the incurrence by the Company and the Guarantors of Indebtedness represented by the Notes and the related Subsidiary
Guarantees issued on the Issue Date and any Exchange Notes and the related Subsidiary Guarantees thereof; 
 (4) 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 or improvement of property, plant or equipment used in Oil and Gas Business of the Company or such Restricted Subsidiary, 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 (4), not to exceed the greater of (a) $100.0 million or (b) 1.0% of
ACNTA as of the date of such incurrence at any time outstanding; 
 (5) the incurrence by the Company or any of its
Restricted Subsidiaries of Permitted Refinancing Indebtedness, or the issuance by the Company or any Restricted Subsidiary of Disqualified Stock or by any Restricted Subsidiary of preferred stock, in each case in exchange for, or the net proceeds of
which are used to refund, refinance or replace Indebtedness (other than intercompany Indebtedness), Disqualified Stock or preferred stock that was permitted by this Indenture to be incurred or issued under the first paragraph of this
Section 4.09 or clause (2) or (3) of this paragraph or this clause (5); 

  
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 (6) 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) if the Company is the obligor on such Indebtedness and a Guarantor is not the obligee, such Indebtedness must be expressly
subordinated to the prior payment in full in cash of all Obligations with respect to the Notes, or if a Guarantor is the obligor on such Indebtedness and neither the Company nor another Guarantor is the obligee, such Indebtedness must be expressly
subordinated to the prior payment in full in cash of all Obligations with respect to the Subsidiary Guarantee of such Guarantor; and 

(b) (i) 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 of the Company and (ii) any sale or other transfer of any such Indebtedness to a Person that is neither the Company nor a Restricted Subsidiary of the Company 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 (6); 

(7) the issuance by any Restricted Subsidiary to the Company or to any Restricted Subsidiary of shares of Disqualified Stock or
preferred stock; provided, however, that: 
 (a) any subsequent issuance or transfer of Equity Interests that
results in any such Disqualified Stock or preferred stock being held by a Person other than the Company or a Restricted Subsidiary of the Company, and 

(b) any sale or other transfer of any such Disqualified Stock or preferred stock to a Person that is neither the Company nor a
Restricted Subsidiary, 
 will be deemed, in each case, to constitute an issuance of such Disqualified Stock or preferred stock by such
Restricted Subsidiary that was not permitted by this clause (7); 
 (8) the incurrence by the Company or any of its
Restricted Subsidiaries of Hedging Obligations; 
 (9) the guarantee by the Company or any of the Guarantors of Indebtedness
of the Company or any Guarantor that was permitted to be incurred by another provision of this Section 4.09; 
 (10) the
incurrence by the Company or any of its Restricted Subsidiaries of obligations relating to net gas balancing positions arising in the ordinary course of business and consistent with past practice; 

  
 44 

 (11) the incurrence by the Company’s Unrestricted Subsidiaries of
Non-Recourse Debt, provided, however, that if any such Indebtedness ceases to be Non-Recourse Debt of an Unrestricted Subsidiary, such event will be deemed to constitute an incurrence of Indebtedness by a Restricted Subsidiary of the
Company that was not permitted by this clause (11); 
 (12) the incurrence by the Company or any of its Restricted
Subsidiaries of Indebtedness in respect of bid, performance, surety and similar bonds issued for the account of the Company and any of its Restricted Subsidiaries in the ordinary course of business, including guarantees and obligations of the
Company and any of its Restricted Subsidiaries with respect to letters of credit supporting such obligations (in each case other than an obligation for money borrowed); 

(13) the incurrence by the Company or any of its Restricted Subsidiaries 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; 

(14) Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument
inadvertently (except in the case of daylight overdrafts) drawn against insufficient funds in the ordinary course of business; provided, however, that such Indebtedness is promptly extinguished; 

(15) Indebtedness arising in connection with endorsement of instruments for deposit in the ordinary course of business; 

(16) Indebtedness owed on a short-term basis to banks and other financial institutions incurred in the ordinary course of
business of the Company and any Restricted Subsidiary with such banks or financial institutions that arises in connection with ordinary banking arrangements to manage cash balances of the Company and any Restricted Subsidiary; 

(17) the incurrence by the Company or any of its Restricted Subsidiaries of Acquired Debt in connection with a transaction
meeting either one of the financial tests set forth in clause (4) under Section 5.01 hereof; and 
 (18) the
incurrence or issuance by the Company or any of its Restricted Subsidiaries of additional Indebtedness, Disqualified Stock or preferred stock in an aggregate principal amount, or accreted value or liquidation preference, as applicable at any time
outstanding, not to exceed the greater of (a) $250.0 million or (b) 2.5% of ACNTA as of the date of incurrence. 
 For purposes of
determining compliance with this Section 4.09, in the event that an item of Indebtedness (including Acquired Debt) or Disqualified Stock or preferred stock, as 

  
 45 

 
applicable meets the criteria of more than one of the categories of Permitted Debt described in clauses (1) through (18) above, or is entitled to be incurred pursuant to the first
paragraph of this Section 4.09, the Company will be permitted to divide and classify (or later divide, classify, reclassify or re-divide in whole or in part in its sole discretion) such item of Indebtedness or Disqualified Stock or preferred
stock, as applicable in any manner that complies with this Section 4.09, except that any Indebtedness under Credit Facilities on the Issue Date (after giving effect to the application of the proceeds from the offering of the Initial Notes
contemplated by the offering memorandum relating to such offering) shall be considered incurred under the first paragraph of this Section 4.09. In addition, the principal amount of any Disqualified Stock or preferred stock of a Person shall be
deemed to be equal to the greater of the maximum mandatory redemption or repurchase price (not including, in either case, any redemption or repurchase premium) or the liquidation preference of all obligations of such Person with respect to the
redemption, repayment or other repurchase of any Disqualified Stock, or with respect to any Non-Guarantor Subsidiary, any preferred stock. 

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 payment of dividends on Disqualified Stock in the form of additional shares of the same class of Disqualified Stock and the payment of dividends on preferred stock in the form of additional shares of
the same class of preferred stock will not be deemed to be an incurrence of Indebtedness or an issuance of Disqualified Stock or preferred stock for purposes of this Section 4.09; provided, in each such case, that the amount thereof is
included in Fixed Charges of the Company as accrued. Notwithstanding any other provision of this Section 4.09, the maximum amount of Indebtedness that the Company or any Restricted Subsidiary may incur pursuant to this Section 4.09 shall
not be deemed exceeded solely as a result of fluctuations in exchange rates or currency values. 
 Section 4.10 Limitation on Asset Sales. 

The Company will not, and will not permit any of its Restricted Subsidiaries to, consummate an Asset Sale unless: 

(1) the Company (or the Restricted Subsidiary, as the case may be) receives consideration at the time of the Asset Sale at
least equal to the fair market value of the assets or Equity Interests issued or sold or otherwise disposed of; 
 (2) the
fair market value is determined by the Company’s Board of Directors and evidenced by a Board Resolution; and 
 (3) at
least 75% of the consideration received in the Asset Sale by the Company or such Restricted Subsidiary is in the form of cash or Cash Equivalents. For purposes of this clause (3) of Section 4.10 only, each of the following will be deemed
to be cash or Cash Equivalents: 
 (a) any liabilities, as shown on the Company’s or such Restricted Subsidiary’s
most recent balance sheet, of the Company or any 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
pursuant to a novation agreement that releases the Company or such Subsidiary from further liability; 

  
 46 

 (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 Subsidiary into cash within 270 days of the receipt thereof, to the extent of the cash received in that conversion; and 

(c) with respect to any Asset Sale of oil and natural gas properties where the Company or such Restricted Subsidiary retains an
interest in such property, the aggregate costs and expenses of the Company or such Restricted Subsidiary related to the exploration, development, completion or production of such properties and activities related thereto which the transferee (or an
Affiliate thereof) agrees to pay. 
 Within 360 days after the receipt of any Net Proceeds from an Asset Sale, the Company or any such
Restricted Subsidiary may apply those Net Proceeds at its option to any combination of the following: 
 (I) to prepay, repay, redeem or
repurchase any Indebtedness of the Company or a Guarantor (other than intercompany Indebtedness, Capital Stock or Indebtedness that is subordinated to the Notes or the Subsidiary Guarantees) or any Indebtedness of a Restricted Subsidiary that is not
a Guarantor (other than intercompany Indebtedness); 
 (II) to acquire all or substantially all of the properties or assets of one or more
other Persons primarily engaged in the Oil and Gas Business, and, for this purpose, a division or line of business of a Person shall be treated as a separate Person; 

(III) to acquire a majority of the Voting Stock of one or more other Persons primarily engaged in the Oil and Gas Business; 

(IV) to make one or more capital expenditures; or 

(V) to acquire other property or assets that are used or useful in the Oil and Gas Business. 

Pending the final application of any Net Proceeds, the Company or any such Restricted Subsidiary may temporarily reduce revolving credit
borrowings or otherwise invest the Net Proceeds in any manner that is not prohibited by this Indenture. Any Net Proceeds from Asset Sales that are not applied or invested as provided in the preceding paragraph will constitute “Excess
Proceeds.” 
 On the 361st day after the Asset Sale (or, at the Company’s option, any earlier date), if the aggregate amount of
Excess Proceeds then exceeds $50.0 million, the Company will make an Asset Sale Offer to all Holders of Notes, and to all holders of other Pari Passu Indebtedness 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,

  
 47 

 
pursuant to the terms in Section 3.04 hereof and this Section 4.10. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount plus accrued and unpaid
interest, if any, to the Settlement Date, subject to the right of Holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Settlement Date, and will be payable in cash. If any
Excess Proceeds remain after consummation of an Asset Sale Offer, the Company 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 in such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee will select the Notes and such other Pari Passu Indebtedness to be purchased on a pro rata basis on the basis of the aggregate accreted value (if issued with
original issue discount) or principal amount of tendered Notes and Pari Passu Indebtedness (provided that the selection of such Pari Passu Indebtedness shall be made pursuant to the terms of such Pari Passu Indebtedness) (with such
adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000 or any integral multiple of $1,000 in excess thereof, will be purchased). Upon completion of each Asset Sale Offer, the amount of Excess Proceeds
will be reset at zero. 
 The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other Applicable Law to
the extent 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 provisions of Section 3.04 or this Section 4.10,
the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under such provisions by virtue of such compliance. 

Section 4.11 Limitation on Transactions with Affiliates. 

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 (each,
an “Affiliate Transaction”) involving aggregate consideration in excess of $5.0 million, unless: 
 (1) the
Affiliate Transaction is on terms that are not materially 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 an
unrelated Person or, if in the good faith judgment of the Company’s Board of Directors, no comparable transaction is available with which to compare such Affiliate Transaction, such Affiliate Transaction is otherwise fair to the Company or the
relevant Restricted Subsidiary from a financial point of view; and 
 (2) 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 but less than or equal to $50.0 million, an Officers’ Certificate certifying that such Affiliate Transaction complies with this Section 4.11; and 

  
 48 

 (b) with respect to any Affiliate Transaction or series of related Affiliate
Transactions involving aggregate consideration in excess of $50.0 million, an Officers’ Certificate certifying that such Affiliate Transaction complies with this Section 4.11 and has been approved by the resolution of a majority of the
disinterested members of the Board of Directors. 
 The following items will not be deemed to be Affiliate Transactions and, therefore, will
not be subject to the provisions of the prior paragraph of this Section 4.11: 
 (1) any employment, severance or
consulting agreement or other compensation agreement, arrangement or plan or any amendment thereto, any issuance of Capital Stock (other than Disqualified Stock) or other payments, awards or grants in cash, Capital Stock (other than Disqualified
Stock) or otherwise pursuant to, or the funding of, employment, severance or consulting agreements and other compensation agreements, arrangements and plans, options to purchase Capital Stock (other than Disqualified Stock) of the Company,
restricted stock plans, long-term incentive plans, stock appreciation rights plans, participation plans or similar employee benefits plans, in each case arising in the ordinary course of business of the Company or any of its Restricted Subsidiaries;

 (2) transactions between or among any of the Company and its Restricted Subsidiaries; 

(3) transactions with a Person that is an Affiliate of the Company solely because the Company owns an Equity Interest in such
Person, including, without limitation, any transaction with a joint venture or similar entity (other than an Unrestricted Subsidiary); 

(4) payment of reasonable directors’ fees, consulting fees and other benefits to persons who are not otherwise Affiliates
of the Company; 
 (5) provision of officers’ and directors’ indemnification and insurance in the ordinary course
of business to the extent permitted by law; 
 (6) sales of Equity Interests (other than Disqualified Stock) to Affiliates of
the Company; 
 (7) Permitted Investments and Restricted Payments that are permitted by Section 4.07 hereof; 

(8) any transaction in which the Company or its Restricted Subsidiaries, as the case may be, deliver to the Trustee a letter
from an accounting, appraisal or investment banking firm of national standing stating that such transaction is fair to the Company or its Restricted Subsidiary from a financial point of view or that such transaction meets the requirements of
clause (1) of the first paragraph of this Section 4.11; 
 (9) transactions with Unrestricted Subsidiaries,
Affiliates, customers, clients, suppliers or purchasers or sellers of goods or services, or lessors or lessees of property, in 

  
 49 

 
each case in the ordinary course of business and otherwise in compliance with the terms of this Indenture which are, in the aggregate (taking into account all the costs and benefits associated
with such transactions) materially no less favorable to the Company or its Restricted Subsidiaries than those that would have been obtained in a comparable transaction by the Company or such Restricted Subsidiary with an unrelated person, in the
good faith determination of the Company’s Board of Directors, or are on terms at least as favorable as might reasonably have been obtained at such time from an unaffiliated party; and 

(10) transactions between the Company or any of its Restricted Subsidiaries and any Person, a director of which is also a
director of the Company or any direct or indirect parent of the Company; provided, however, that such director abstains from voting as a director of the Company or such direct or indirect parent, as the case may be, on any matter
involving such other Person. 
 Section 4.12 Limitation on Liens. 

The Company will not and will not permit any of its Restricted Subsidiaries to, create, incur, assume or otherwise cause or suffer to exist or
become effective any Lien of any kind (other than Permitted Liens) securing Indebtedness or Attributable Debt upon any of their property or assets, now owned or hereafter acquired, unless the Notes or any Subsidiary Guarantee of such Restricted
Subsidiary, as applicable, is secured on an equal and ratable basis (or on a senior basis to, in the case of obligations subordinated in right of payment to the Notes or such Subsidiary Guarantee, as the case may be) with the obligations so secured
until such time as such obligations are no longer secured by a Lien. For the avoidance of doubt, the creation, incurrence, assumption and existence of Liens (but not the foreclosure thereof) shall be governed by this Section 4.12 and not by
Sections 4.10, 4.15 or 5.01. 
 Section 4.13 Additional Subsidiary Guarantees. 

If the Company or any of its Restricted Subsidiaries acquires or creates another Material Domestic Subsidiary after the Issue Date, or if any
Non-Guarantor Subsidiary either (a) becomes a borrower or guarantees any Indebtedness of the Company or another Restricted Subsidiary of the Company under the Credit Agreement or (b)(i) guarantees any other Capital Markets Indebtedness of the
Company or any Restricted Subsidiary, or (ii) incurs any Capital Markets Indebtedness, then in each case that Subsidiary will become a Guarantor by executing a supplemental indenture substantially in the form of Exhibit B hereto and delivering
it to the Trustee within 20 Business Days of the date on which it was acquired or created or guaranteed or incurred such Indebtedness of the Company, as the case may be, together with any Opinion of Counsel described in Section 903 of the
Original Indenture. 
 Section 4.14 Corporate Existence. 

Except as otherwise permitted pursuant to the terms hereof (including as permitted by Section 5.01 hereof), the Company shall do or cause
to be done all things necessary to preserve and keep in full force and effect its corporate existence, and the corporate, partnership or other existence of each of its Restricted Subsidiaries, in accordance with the respective organizational
documents (as the same may be amended from time to time) of the Company or any such 

  
 50 

 
Restricted Subsidiary; provided, however, that, subject to the other applicable provisions of this Fourth Supplemental Indenture, the Company shall not be required to preserve the
existence of any of its Restricted Subsidiaries if the Company shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company and its Restricted Subsidiaries taken as a whole and that the loss
thereof is not adverse in any material respect to the Holders. 
 Section 4.15 Offer to Repurchase Upon Change of Control Triggering Event. 

(1) Within 30 days following the occurrence of a Change of Control Triggering Event, the Company shall make an offer (a
“Change of Control Offer”) to repurchase all or any part (equal to $2,000 or any integral multiple of $1,000 in excess thereof) of each Holder’s Notes at a purchase price (the “Change of Control Payment”) in cash equal to
101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, thereon to the date of settlement (the “Change of Control Settlement Date”), subject to the right of Holders of record on the relevant
record date to receive interest due on an Interest Payment Date that is on or prior to the Change of Control Settlement Date. Within 30 days following any Change of Control Triggering Event, the Company shall mail (or otherwise deliver in accordance
with the applicable procedures of the Depositary) a notice of the Change of Control Offer to each Holder and the Trustee describing the transaction that constitutes the Change of Control and stating: 

(a) that the Change of Control Offer is being made pursuant to this Section 4.15 and that all Notes validly tendered and
not withdrawn will be accepted for payment; 
 (b) the purchase price and the purchase date, which shall be no earlier than
30 days but no later than 60 days from the date such notice is mailed or otherwise delivered (or, or in the case of a notice mailed or otherwise delivered in advance of a Change of Control, no earlier than 30 days and no later than 60 days from the
date of such Change of Control Triggering Event (the “Change of Control Purchase Date”); 
 (c) that the Change of
Control Offer will expire as of the time specified in such notice on the Change of Control Purchase Date and that the Company shall pay the Change of Control Purchase Price for all Notes purchased as of the Change of Control Purchase Date promptly
thereafter on the Change of Control Settlement Date; 
 (d) that any Note not tendered will continue to accrue interest; 

(e) 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 shall cease to accrue interest after the Change of Control Settlement Date; 
 (f) that
Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender the Notes, properly endorsed for transfer, together with the form entitled “Option of Holder to Elect

  
 51 

 
Purchase” on the reverse of the Notes completed and such customary documents as the Company may reasonably request, to the Paying Agent at the address specified in the notice prior to the
termination of the Change of Control Offer on the Change of Control Purchase Date; 
 (g) that Holders will be entitled to
withdraw their election if the Paying Agent receives, prior to the termination of the Change of Control Offer, 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 its election to have the Notes purchased; and 
 (h) 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 $2,000 in principal amount or any integral multiple of
$1,000 in excess thereof. 
 If any of the Notes subject to a Change of Control Offer is in the form of a Global Note, then the Company shall
modify such notice to the extent necessary to accord with the procedures of the Depositary applicable to repurchases. Notwithstanding the foregoing, the Company shall comply with the requirements of Rule 14e-1 under the Exchange Act and any other
securities laws and regulations thereunder and all Applicable Law to the extent those laws, regulations and orders are applicable in connection with the repurchase of Notes as a result of a Change of Control Triggering Event. To the extent that the
provisions of any securities laws or regulations or any such other Applicable Law conflict with the provisions of this Section 4.15, the Company will comply with the applicable securities laws and regulations and all such other Applicable Law
and will not be deemed to have breached its obligations under such provisions by virtue of such compliance. 
 (2) On the
Change of Control Settlement Date, the Company shall, to the extent lawful, accept for payment all Notes or portions thereof (in minimum denominations of $2,000 or any integral $1,000 multiple in excess thereof) properly tendered pursuant to the
Change of Control Offer. Promptly thereafter on the Change of Control Settlement Date the Company shall: 
 (a) deposit with
the Paying Agent by 11:00 a.m., New York City time an amount equal to the Change of Control Payment in respect of all Notes or portions thereof so tendered; and 

(b) deliver or cause to be delivered to the Trustee the Notes so accepted together with an Officers’ Certificate stating
the aggregate principal amount of Notes or portions of Notes being purchased by the Company. 
 On the Change of Control Settlement Date, the
Paying Agent shall mail to each Holder 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 shall 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 

  
 52 

 
surrendered, if any; provided, however, that each such new Note will be in a principal amount of $2,000 or any integral multiple of $1,000 in excess thereof. The Company shall
publicly announce the results of the Change of Control Offer on or as soon as practicable after the Change of Control Settlement Date. 

(c) The Change of Control provisions described above shall be applicable whether or nor any other provisions of this Indenture
are applicable. 
 (d) [Intentionally Omitted.] 

(e) The Company shall not be required to make a Change of Control Offer following a Change of Control Triggering Event if
(1) a third party makes the Change of Control Offer in the manner, at the time 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 such Change of Control Offer or (2) notice of redemption has been given pursuant to Section 3.02 hereof with respect to all outstanding Notes, unless and until there is a default in payment of the
applicable Redemption Price. Notwithstanding anything to the contrary contained herein, a Change of Control Offer by the Company or a third party may be made in advance of a Change of Control Triggering Event, and conditioned upon the occurrence of
a Change of Control Triggering Event, if a definitive agreement is in place for the Change of Control Triggering Event at the time the Change of Control Offer is made. 

(3) In the event that Holders of Notes of not less than 90% of the aggregate principal amount of the outstanding Notes accept a Change of
Control Offer and the Company purchases all of the Notes 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 the purchase pursuant to the Chang of
Control Offer, to redeem all of the Notes that remain outstanding following such purchase at a purchase price equal to the Change of Control Payment plus, to the extent not included in the Change of Control Payment, accrued and unpaid interest on
the Notes that remain outstanding, if any, to the Change of Control Settlement Date, subject to the right of Holders of record on the relevant record date to receive interest due on an interest payment date that is on or prior to the Change of
Control Settlement Date. Any such redemption shall be effected in accordance with Article Eleven of the Original Indenture, as modified by Section 3.01 hereof. 

Section 4.16 No Inducements. 
 The
Company shall not, and the Company shall not permit any of its Subsidiaries, either directly or indirectly, to pay (or cause to be paid) any consideration, whether by way of interest, fee or otherwise, to any Beneficial Owner or Holder of the Notes
for or as an inducement to any consent to any waiver, amendment or supplement of any terms or provisions of this Indenture or the Notes, unless such consideration is offered to be paid (or agreed to be paid) to all Beneficial Owners and Holders
which so consent in the time frame set forth in the solicitation documents relating to such consent. 

  
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 Section 4.17 Designation of Restricted and Unrestricted Subsidiaries. 

The Board of Directors of the Company may designate any Subsidiary (including any acquired or newly formed Subsidiary) of the Company to be an
Unrestricted Subsidiary if that designation would not cause a Default. If a Restricted Subsidiary of the Company 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 properly designated 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 the first paragraph of Section 4.07
hereof or represent Permitted Investments, as determined by the Company. That designation shall only be permitted if the Investment would be permitted at that time and if the Subsidiary so designated otherwise meets the definition of an Unrestricted
Subsidiary. 
 The Board of Directors of the Company may at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary of
the Company; provided that such designation will be deemed to be an incurrence of Indebtedness by a Restricted Subsidiary of the Company of any outstanding Indebtedness of such Unrestricted Subsidiary and such designation will only be
permitted if (1) such Indebtedness is permitted under the Fixed Charge Coverage Ratio test set forth in the first paragraph of Section 4.09 hereof, calculated on a pro forma basis as if such designation had occurred at the beginning of the
four-quarter reference period, and (2) no Default or Event of Default would be in existence immediately following such designation. 

Section 4.18 Covenant Termination. 

If at any time (a) the rating assigned to the Notes by both S&P and Moody’s is an Investment Grade Rating and (b) no Default
has occurred and is continuing under this Indenture (excluding, for the avoidance of doubt, any Default under one or more of the provisions listed below, provided that such Default did not exist immediately prior to the transaction or series
of related transactions resulting in the applicable change in ratings), then upon delivery by the Company to the Trustee of an Officers’ Certificate to the foregoing effect, the Company and its Restricted Subsidiaries will no longer be subject
to the following provisions of this Indenture: Sections 4.07, 4.08, 4.09, 4.10 or 4.11 or clause (d) of Section 5.01. The Company and its Restricted Subsidiaries will remain subject to all other provisions of this Indenture, including,
without limitation, Sections 4.03, 4.12, 4.13, 4.17 and 5.01 other than clause (d) thereof). 
 ARTICLE 5 

SUCCESSORS 
 The provisions of
Article Eight of the Original Indenture shall not apply to the Notes, and in lieu thereof the following provisions of this Article 5 shall apply to the Notes. 

Section 5.01 Merger, Consolidation, or Sale of Assets. 

The Company shall not, directly or indirectly, (1) consolidate or merge with or into another Person (whether or not the Company is the
surviving entity), or (2) sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of the properties or assets of the Company and its Restricted Subsidiaries taken as a whole, in one or more related transactions
to, another Person, unless: 
 (a) either (1) the Company is the surviving Person or (2) the Person formed by or
surviving any such consolidation or merger (if other than the Company) or to which 

  
 54 

 
such sale, assignment, transfer, lease, conveyance or other disposition shall have been made is an entity organized or existing under the laws of the United States, any state of the United States
or the District of Columbia; provided that if the Company or such other Person is not a corporation, a Restricted Subsidiary of the Company that is a corporation organized or existing under the laws of the United States, any state of the
United States or the District of Columbia shall assume by supplemental indenture all obligations of the Company under the Notes and this Indenture as a co-issuer of the Notes; 

(b) the Person formed by or surviving any such consolidation or merger (if other than the Company) or the Person to which such
sale, assignment, transfer, lease, conveyance or other disposition shall have been made assumes all the obligations of the Company under the Notes and this Indenture pursuant to a supplemental indenture or other agreement in a form reasonably
satisfactory to the Trustee and assumes by written agreement all obligations of the Company under the Registration Rights Agreement; 

(c) immediately after such transaction no Default or Event of Default exists; 

(d) 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, lease, conveyance or other disposition shall have been made will, on the date of such transaction and 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, either (a) be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in the first paragraph of Section 4.09 hereof or
(b) have a Fixed Charge Coverage Ratio that is equal to or greater than the Fixed Charge Coverage Ratio of the Company immediately prior to such consolidation, merger, sale, assignment, transfer, lease, conveyance or other disposition; 

(e) each Guarantor (unless it is the other party to the transactions described above, in which case Section 10.03 shall
apply) shall have by supplemental indenture confirmed that its Subsidiary Guarantee shall apply to such successor Person’s obligations under this Indenture and the Notes; and 

(f) the Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that
such consolidation, merger or disposition and such supplemental indenture (if any) comply with this Indenture. 
 provided, however, that
(i) this Section 5.01 shall not apply to any sale, assignment, transfer, lease, conveyance or other disposition of assets between or among the Company and its Restricted Subsidiaries and (ii) clauses (c) and (d) hereof shall
not apply to any merger or consolidation of the Company (a) with or into one of its Restricted Subsidiaries for any purpose or (b) with or into an Affiliate solely for the purpose of reincorporation (or the substantial equivalent) of the
Company in another jurisdiction. 
 Section 5.02 Successor Entity 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 and its Restricted Subsidiaries taken as a whole in accordance with Section 5.01 hereof, the successor 

  
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entity 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
may exercise every right and power of, the Company under this Indenture with the same effect as if such successor entity had been named as the Company herein and shall be substituted for the Company (so that from and after the date of such
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 entity and not to the Company); and thereafter, if
the Company is dissolved following a transfer of all or substantially all of the properties or assets of the Company and its Restricted Subsidiaries taken as a whole in accordance with this Indenture, the Company shall be discharged and released
from all obligations and covenants under this Indenture and the Notes. The Trustee shall enter into a supplemental indenture to evidence the succession and substitution of such successor Person and such discharge and release of the Company. 

ARTICLE 6 
 DEFAULTS AND REMEDIES

 Section 6.01 Events of Default. 

In accordance with Section 301(18) of the Original Indenture, Section 501 of the Original Indenture is hereby amended to read in its
entirety as follows with respect to the Notes: 
 “An ‘Event of Default’ occurs if one of the following shall have occurred
and be continuing (whatever the reason for such Event of Default and whether it shall be involuntary or be effected by operation of law): 

(1) the Company defaults in the payment when due of interest with respect to the Notes, and such default continues for a period
of 30 days; 
 (2) the Company defaults in the payment when due of the principal of or premium, if any, on the Notes, whether
upon Stated Maturity, redemption or otherwise; 
 (3) the Company fails to comply with the provisions of Section 5.01 of
this Fourth Supplemental Indenture or to consummate a purchase of Notes when required pursuant to Section 4.10 or 4.15 of this Fourth Supplemental Indenture; 

(4) the Company fails to comply for 30 days after notice by the Trustee or Holders of 25% of the outstanding principal amount
of the Notes with Sections 4.07 and 4.09 or, except in the case of a failure to purchase Notes when required described above in clause (3), Section 4.10 and 4.15; 

(5) the Company or any Guarantor fails to comply with any other covenant or other agreement in this Indenture or the Notes for
60 days (or 180 days in the case of a Reporting Failure) after notice to the Company by the Trustee or the Holders of at least 25% in principal amount of the Notes then outstanding of such failure; 

(6) a default occurs 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 

  
 56 

 
which is guaranteed by the Company or any of its Restricted Subsidiaries), whether such Indebtedness or guarantee now exists or is created after the Issue Date, if such 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
any grace period provided in such Indebtedness (a “Payment Default”); or 
 (b) results in the acceleration of such
Indebtedness prior to its Stated 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 $100.0 million or more; provided, that if any such default is cured or waived or any such
acceleration is rescinded, or such Indebtedness is repaid, within a period of 20 days from the continuation of such default beyond the applicable grace period or the occurrence of such acceleration, as the case may be, such Event of Default under
this Indenture and any consequential acceleration of the Notes shall be automatically rescinded unless such rescission would conflict with any judgment or decree of a court of competent jurisdiction; 

(7) the Company or any of its Significant Subsidiaries fails to pay final judgments aggregating in excess of $100.0 million,
which judgments are not paid, discharged or stayed (including a stay pending appeal) for a period of 60 days after the date of such final judgment (or, if later, the date when payment is due pursuant to such judgment); 

(8) except as permitted by this Indenture, any Subsidiary Guarantee is held in any 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 (other than by reason of release of a Guarantor
from its Subsidiary Guarantee in accordance with the terms of this Indenture); and 
 (9) the Company, any Significant
Subsidiary of the Company or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary pursuant to or within the meaning of Bankruptcy Law: 

(a) commences a voluntary case, 

(b) consents in writing to the entry of an order for relief against it in an involuntary case, 

(c) consents in writing to the appointment of a Custodian of it or for all or substantially all of its property, 

(d) makes a general assignment for the benefit of its creditors, or 

  
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 (e) admits in writing it generally is not paying its debts as they become due; or

 (10) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that: 

(a) is for relief against the Company or any of its Significant Subsidiaries or any group of Subsidiaries of the Company that,
taken together, would constitute a Significant Subsidiary in an involuntary case; 
 (b) appoints a Custodian of the Company,
any Significant Subsidiary of the Company or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary or for all or substantially all of the property of the Company, any Significant Subsidiary of the
Company or any group of Subsidiaries of the Company, that, taken together, would constitute a Significant Subsidiary; or 

(c) orders the liquidation of the Company, any Significant Subsidiary of the Company or any group of Subsidiaries of the
Company that, taken together, would constitute a Significant Subsidiary; 
 and the order or decree remains unstayed and in effect for 60
consecutive days.” 
 Section 6.02 Acceleration. 

Also as permitted by Section 301(18) of the Original Indenture, the first paragraph of Section 502 of the Original Indenture is
hereby amended to read in its entirety as follows with respect to the Notes: 
 “If any other Event of Default occurs and is
continuing, the Trustee, by notice to the Company, or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes, by notice to the Company and the Trustee, may declare all the Notes to be due and payable immediately.
Upon any such declaration, the Notes shall become due and payable immediately, together with all accrued and unpaid interest and premium, if any, thereon. Notwithstanding the preceding, if an Event of Default specified in clause (9) or
(10) of Section 6.01 hereof occurs with respect to the Company, any Significant Subsidiary of the Company or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, all outstanding Notes
shall become due and payable without further action or notice, together with all accrued and unpaid interest and premium, if any, thereon. 

An Event of Default for the Notes shall not necessarily constitute an Event of Default for any other series of debt securities that may be
issued under this Indenture in the future and vice versa.” 

  
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 Section 6.03 [Intentionally Omitted.]. 

Section 6.04 Waiver of Usury, Stay or Extension of Laws. 

Section 515 of the Original Indenture shall not apply to the Notes inasmuch as it is duplicative of Section 4.06 of this Fourth
Supplemental Indenture. 
 ARTICLE 7 

TRUSTEE; REPORTS 
 Section 7.01 Notice of
Defaults. 
 With respect to the Notes only, the proviso in the first sentence of Section 602 of the Original Indenture shall be
deemed inapplicable. With respect to the Notes only, Section 602 of the Original Indenture is hereby amended to include the following: 

The Trustee may withhold from Holders notice of any continuing Default or Event of Default with respect to the Notes (except a Default or
Event of Default relating to the payment of principal, premium, if any, or interest) if it determines in good faith that withholding notice is in their interest. The Trustee shall not be deemed to have notice of any Default or Event of Default with
respect to the Notes unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a default is received by the Trustee at the Corporate Trust Office of the Trustee, and such
notice references the Notes and this Fourth Supplemental Indenture. 
 Section 7.02 [Intentionally Omitted.]  

Section 7.03 Compensation and Reimbursement. 

With respect to the Notes only, Section 607 of the Original Indenture is hereby amended to include the following: 

As security for the performance of the obligations of the Company under this Section the Trustee shall have a lien prior to the Notes upon all
property and funds held or collected by the Trustee as such, except funds held in trust for the payment of principal of (and premium, if any) or interest on particular Notes. 

In addition to, but without prejudice to its other rights under this Indenture, when the Trustee incurs expenses or renders services in
connection with an Event of Default specified in Sections 6.01(9) or 6.01(10) hereof, the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of
administration under any applicable federal or state bankruptcy, insolvency or other similar law. 
 “Trustee” for purposes of
this Section shall include any predecessor Trustee. 
 The provisions of this Section shall survive the satisfaction and discharge of the
Notes, the termination for any reason of this Indenture, and the resignation or removal of the Trustee. 

  
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 Section 7.04 Reports by Company and Subsidiary Guarantors. 

Section 704 of the Original Indenture shall not apply to the Notes inasmuch as its requirements are duplicative of those set forth in
Section 4.03(a) of this Fourth Supplemental Indenture. 
 ARTICLE 8 

LEGAL DEFEASANCE AND COVENANT DEFEASANCE 

The provisions of Article Fifteen of the Original Indenture shall not apply to the Notes, and in lieu thereof the following provisions of this
Article 8 shall apply to the Notes. 
 Section 8.01 Option to Effect Legal Defeasance or Covenant Defeasance. 

The Company may, at its option and at any time, exercise its rights under either Section 8.02 or 8.03 hereof with respect to all
outstanding Notes upon compliance with the conditions set forth below in this Article 8. 
 Section 8.02 Legal Defeasance and Discharge. 

Upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.02, the Company shall, subject
to the satisfaction of the conditions set forth in Section 8.04 hereof, be deemed to have discharged its obligations with respect to all outstanding Notes, and each Guarantor shall be deemed to have discharged its obligations with respect to
its Subsidiary Guarantee, on the date the conditions set forth in Section 8.04 below are satisfied (hereinafter, “Legal Defeasance”). For this purpose, Legal Defeasance means that the Company shall be deemed to have paid and
discharged the entire Indebtedness represented by the outstanding Notes, and each Guarantor shall be deemed to have paid and discharged its Subsidiary Guarantee (which in each case shall thereafter be deemed to be “outstanding” only for
the purposes of Section 8.05 hereof and the other Sections of this Fourth Supplemental Indenture and the Sections of the Original Indenture referred to in (a) and (b) below) and to have satisfied all its other obligations under such
Notes or Subsidiary Guarantee and this Indenture (and the Trustee, on demand of and at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following provisions which shall survive until otherwise
terminated or discharged hereunder: (a) the rights of Holders of outstanding Notes to receive solely from the trust fund described in Section 8.04 hereof, and as more fully set forth in such Section, payments in respect of the principal
of, and interest and premium, if any, on such Notes when such payments are due, (b) the Company’s obligations with respect to such Notes under Sections 304, 305, 306, 1002 and 1003 of the Original Indenture and Section 4.02 hereof,
(c) the rights, powers, trusts, duties and immunities of the Trustee hereunder and the Company’s obligations in connection therewith and (d) the Legal Defeasance provisions of this Article 8. Subject to compliance with this Article 8,
the Company may exercise its option under this Section 8.02 notwithstanding the prior exercise of its option under Section 8.03 hereof. 

If the Company exercises its Legal Defeasance option, each Guarantor will be released and relieved of any obligations under its Subsidiary
Guarantee and any security for the Notes (other than the trust) will be released. 

  
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 Section 8.03 Covenant Defeasance. 

Upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, the Company shall, subject
to the satisfaction of the conditions set forth in Section 8.04 hereof, be released from its obligations under the covenants contained in Article 4 hereof (other than those in Sections 4.01, 4.02, 4.06 and 4.14 hereof) and in clause (d) of
Section 5.01 hereof on and after the date the conditions set forth below are satisfied (hereinafter, “Covenant Defeasance”), and the Notes shall thereafter be deemed not “outstanding” for the purposes of any direction,
waiver, consent or declaration or act of Holders (and the consequences of any thereof) in connection with such covenants, but shall continue to be deemed “outstanding” for all other purposes hereunder (it being understood that such Notes
shall not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Notes, the Company and any Guarantor may omit to comply with and shall have no liability in respect of any
term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any
other document and such omission to comply shall not constitute a Default or an Event of Default with respect to the Notes under Section 501 of the Original Indenture (as amended by Section 6.01 of this Fourth Supplemental Indenture), but,
except as specified above, the remainder of this Indenture and such Notes shall be unaffected thereby. In addition, upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03 hereof, subject to
the satisfaction of the conditions set forth in Section 8.04 hereof, Sections 6.01(5) through 6.01(7) of this Fourth Supplemental Indenture shall not constitute Events of Default with respect to the Notes. 

If the Company exercises its Covenant Defeasance option, each Guarantor will be released and relieved of any obligations under its Subsidiary
Guarantee and any security for the Notes (other than the trust) will be released. 
 Section 8.04 Conditions to Legal or Covenant Defeasance.

 In order to exercise either Legal Defeasance or Covenant Defeasance: 

(i) the Company must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders of such Notes, cash in U.S. dollars,
non-callable Government Securities, or a combination thereof, in such amounts as will be sufficient, in the opinion of a nationally recognized investment bank, appraisal firm or firm of independent public accountants, to pay the principal of, and
interest and premium, if any, and interest on the outstanding Notes on Stated Maturity or on the applicable redemption date, as the case may be, and the Company must specify whether the Notes are being defeased to the Stated Maturity or to a
particular Redemption Date; 
 (ii) in the case of an election under Section 8.02 hereof, the Company shall have delivered to the
Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that: 
 (1) the Company has received from, or
there has been published by, the Internal Revenue Service a ruling; or 

  
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 (2) since the Issue Date, there has been a change in the applicable federal
income tax law, 
 in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders and
Beneficial Owners of the outstanding Notes will not recognize income, gain or loss for federal income tax purposes as a result of such Legal Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same
times as would have been the case if such Legal Defeasance had not occurred; 
 (iii) in the case of an election under Section 8.03
hereof, the Company shall have delivered to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that the Holders and Beneficial Owners of the outstanding Notes will not recognize income, gain or loss for federal income
tax purposes as a result of such Covenant Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Covenant Defeasance had not occurred; 

(iv) no Default or Event of Default shall have occurred and be continuing on the date of such deposit (other than a Default or Event of
Default resulting from the borrowing of funds to be applied to such deposit and any similar concurrent deposit relating to other Indebtedness, and the granting of Liens to secure such borrowing); 

(v) such Legal Defeasance or Covenant Defeasance shall not result in a breach or violation of, or constitute a default under, any material
agreement or instrument (other than this Indenture and the agreements governing any other Indebtedness being defeased, discharged or replaced) to which the Company or any of its Subsidiaries is a party or by which the Company or any of its
Subsidiaries is bound; 
 (vi) the Company shall have delivered to the Trustee an Officers’ Certificate stating that the deposit was
not made by the Company with the intent of preferring the Holders over any other creditors of the Company or with the intent of defeating, hindering, delaying or defrauding creditors of the Company or others; and 

(vii) the Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all
conditions precedent provided for or relating to the Legal Defeasance or the Covenant Defeasance have been complied with. 
 Section 8.05 Deposited
Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions. 
 Subject to Section 8.06 hereof, all money
and non-callable Government Securities (including the proceeds thereof) deposited with the Trustee pursuant to Section 8.04 or 8.08 hereof in respect of the outstanding Notes shall be held in trust and applied by the Trustee, in accordance with
the provisions of such Notes and the Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as Paying Agent) as the Trustee may determine, to the Holders of such Notes of all sums due and to become due
thereon in respect of principal, premium, if any, and interest, but such money need not be segregated from other funds except to the extent required by law. 

  
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 The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed on
or assessed against the cash or non-callable Government Securities deposited pursuant to Section 8.04 or 8.08 hereof or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the
account of the Holders of the outstanding Notes. 
 Anything in this Article 8 to the contrary notwithstanding, the Trustee shall deliver or
pay to the Company from time to time upon the request of the Company any money or non-callable Government Securities held by it as provided in Section 8.04 or 8.08 hereof which, in the opinion of a nationally recognized firm of independent
public accountants expressed in a written certification thereof delivered to the Trustee (which may be the opinion delivered under Section 8.04(a) hereof), are in excess of the amount thereof that would then be required to be deposited to
effect an equivalent Legal Defeasance, Covenant Defeasance or Discharge, as the case may be. 
 Section 8.06 Repayment to Company. 

Subject to applicable escheat and abandoned property laws, any money deposited with the Trustee or any Paying Agent, or then held by the
Company, in trust for the payment of the principal of or premium or interest on any Note and remaining unclaimed for two years after such principal, premium or interest has become due and payable shall be paid to the Company on its request or (if
then held by the Company) shall be discharged from such trust; and the Holder of such Note shall thereafter, as a secured creditor, look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to
such trust money, and all liability of the Company as trustee thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company
cause to be published once, in the New York Times and The Wall Street Journal (national edition), notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of
such notification or publication, any unclaimed balance of such money then remaining will be repaid to the Company. 
 Section 8.07
Reinstatement. 
 If the Trustee or Paying Agent is unable to apply any United States dollars or non-callable Government Securities in
accordance with Section 8.05 hereof, by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Company’s obligations under this Indenture and the
Notes shall be revived and reinstated as though no deposit had occurred pursuant to Section 8.02 or 8.03 hereof until such time as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section 8.05 hereof;
provided, however, that, if the Company makes any payment of principal of, premium, if any, or interest on any Note following the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such
Notes to receive such payment from the money held by the Trustee or Paying Agent. 

  
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 Section 8.08 Discharge. 

This Indenture shall be satisfied and discharged (a “Discharge”) and shall cease to be of further effect as to all Notes issued
hereunder, upon the terms and conditions, and subject to the exceptions, set forth in Article Four of the Original Indenture. 
 ARTICLE 9

 AMENDMENT, SUPPLEMENT AND WAIVER 

Section 9.01 Without Consent of Holders of Notes. 

Section 901 of the Original Indenture is hereby amended to read in its entirety as follows with respect to the Notes: 

“Notwithstanding Section 902 of this Indenture, the Company, the Guarantors and the Trustee may amend or supplement this Indenture,
the Notes or the Subsidiary Guarantees without the consent of any Holder of a Note: 
 (i) to cure any ambiguity, omission, defect or
inconsistency; 
 (ii) to provide for uncertificated Notes in addition to or in place of certificated Notes; 

(iii) to provide for the assumption of the Company’s or a Guarantor’s obligations to the Holders of Notes pursuant to Article 5 or
Section 10.03 of this Fourth Supplemental Indenture; 
 (iv) to make any change that would provide any additional rights or benefits to
the Holders or that does not adversely affect the legal rights hereunder of any Holder; 
 (v) to secure the Notes or the Subsidiary
Guarantees; 
 (vi) to provide for the issuance of Additional Notes in accordance with the limitations set forth in this Indenture; 

(vii) to add any additional Guarantor with respect to the Notes or to evidence the release of any Guarantor from its Subsidiary Guarantee in
accordance with Article 10 of this Fourth Supplemental Indenture; 
 (viii) to comply with requirements of the Commission in order to
effect or maintain the qualification of this Indenture under the TIA; 
 (ix) to evidence or provide for the acceptance of appointment under
this Indenture of a successor Trustee; 
 (x) to provide for the issuance of Exchange Notes or private exchange notes (which shall be
identical to Exchange Notes except that they will not be freely transferable) and which shall be treated, together with any outstanding notes, as a single class of securities; 

  
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 (xi) to conform the text of this Indenture, the Notes or the Subsidiary Guarantees to any
provision of the “Description of notes” in the offering memorandum relating to the offering of the Initial Notes; and 
 (xii)
make any amendment to the provisions of this Indenture relating to the transfer and legending of Notes as permitted by this Indenture, including, without limitation, to facilitate the issuance and administration of the Notes, Exchange Notes or, if
incurred in compliance with this Indenture, Additional Notes; provided, however, that (A) compliance with this Indenture as so amended would not result in Notes being transferred in violation of the Securities Act or any
applicable securities law and (B) such amendment does not materially and adversely affect the rights of Holders to transfer Notes. 

Upon the request of the Company accompanied by a resolution of its Board of Directors authorizing the execution of any such amended or
supplemental indenture, and upon receipt by the Trustee of the Opinion of Counsel described in Section 9.03 hereof, the Trustee shall join with the Company and the Guarantors in the execution of such amended or supplemental indenture authorized
or permitted by the terms of this Indenture and to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee shall not be obligated to enter into such amended or supplemental Indenture that affects its
own rights, duties or immunities under this Indenture or otherwise. 
 It shall not be necessary for the consent of the Holders of Notes
under this Section 9.01 to approve the particular form of any proposed amendment, supplement or waiver, but it shall be sufficient if such consent approves the substance thereof. 

Section 9.02 With Consent of Holders of Notes. 

Section 902 of the Original Indenture is hereby amended to read in its entirety as follows with respect to the Notes: 

“Except as provided above in Section 901 and below in this Section 902, the Company, the Guarantors and the Trustee may amend
or supplement this Indenture, the Notes or the Subsidiary Guarantees may be amended or supplemented with the consent of the Holders of at least a majority in aggregate 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, subject to Sections 508 and 513 hereof, any existing Default or Event of Default with respect to the Notes or compliance with any provision of
this Indenture, the Notes or the Subsidiary Guarantees may be waived with the consent of the Holders of at least a majority in aggregate 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). 
 Upon the request of the Company accompanied by a resolution of its
Board of Directors authorizing the execution of any such amended or supplemental indenture, and upon the filing with the Trustee of evidence satisfactory to the Trustee of the consent of the Holders of Notes as aforesaid, and upon receipt by the
Trustee of the Opinion of Counsel described in Section 903 hereof, the Trustee shall join with the Company and the Guarantors in the execution of such amended or supplemental indenture unless such amended or supplemental indenture affects the
Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee may in its discretion, but shall not be obligated to, enter into such amended or supplemental indenture. 

  
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 It shall not be necessary for the consent of the Holders of Notes under this Section 902 to
approve the particular form of any proposed amendment, supplement or waiver, but it shall be sufficient if such consent approves the substance thereof. 

After an amendment, supplement or waiver under this Section becomes effective, the Company shall mail to the Holders of Notes affected thereby
a notice briefly describing the amendment, supplement or waiver. Any failure of the Company to mail such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such amended or supplemental indenture or
waiver. Subject to Sections 508 and 513 hereof and to the last paragraph of this Section 902, the Holders of a majority in principal amount of the Notes then outstanding may waive compliance in a particular instance by the Company with any
provision of this Indenture or the Notes. However, without the consent of each Holder affected, an amendment, supplement or waiver may not (with respect to any Notes held by a non-consenting Holder): 

(a) reduce the principal amount of Notes whose Holders must consent to an amendment, supplement or waiver; 

(b) reduce the principal of or change the Stated Maturity of any Note or reduce the premium payable upon the redemption of any Note pursuant
to Section 3.02, change the time at which any Note may be redeemed pursuant to Section 3.02 or make any change relative to the Company’s obligation to purchase the Notes as a result of a Change of Control Triggering Event or an Asset
Sale after (but not before) the occurrence of the applicable Change of Control Triggering Event or Asset Sale; 
 (c) reduce the rate of or
change the time for payment of interest on any Note; 
 (d) waive a Default or Event of Default in the payment of principal of or premium,
if any, or interest on the Notes (except a rescission of acceleration of the Notes by the Holders of at least a majority in principal amount of the Notes and a waiver of the payment default that resulted from such acceleration); 

(e) make any Note payable in money other than that stated in the Notes; 

(f) make any change in the provisions of this Indenture relating to waivers of past Defaults or Events of Default or the rights of Holders of
Notes to receive payments of principal of, or interest or premium, if any, on the Notes (except as permitted in clause (g) below); 

(g) waive a redemption or repurchase payment with respect to any Note (other than a payment required by Sections 3.04, 4.10 and 4.15 of this
Fourth Supplemental Indenture); 
 (h) release any Guarantor from any of its obligations under its Subsidiary Guarantee or this Indenture,
except in accordance with the terms of this Indenture; or 

  
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 (i) make any change in the preceding amendment, supplement and waiver provisions.” 

Section 9.03 Revocation and Effect of Consents. 

A consent to any amendment, supplement or waiver under this Indenture by any Holder given in connection with a purchase, tender or exchange of
such Holder’s Notes shall not be rendered invalid by such purchase, tender or exchange. 
 Until an amendment, supplement or waiver
becomes effective, a consent to it by a Holder of a Note is a continuing consent by the Holder of a Note and every subsequent Holder of a Note or portion of a Note that evidences the same debt as the consenting Holder’s Note, even if notation
of the consent is not made on any Note. However, any such Holder of a Note or subsequent Holder of a Note may revoke the consent as to its Note if the Trustee receives written notice of revocation before the date the waiver, supplement or amendment
becomes effective. An amendment, supplement or waiver becomes effective in accordance with its terms and thereafter binds every Holder. 

The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to consent to any
amendment, supplement or waiver. If a record date is fixed, then notwithstanding the last sentence of the immediately preceding paragraph, those Persons who were Holders at such record date (or their duly designated proxies), and only those Persons,
shall be entitled to consent to such amendment or waiver or revoke any consent previously given, whether or not such Persons continue to be Holders after such record date. No consent shall be valid or effective for more than 90 days after such
record date except to the extent that the requisite number of consents to the amendment, supplement or waiver have been obtained within such 90-day period or as set forth in the next paragraph of this Section 9.03. 

After an amendment, supplement or waiver becomes effective, it shall bind every Holder, unless it makes a change described in any of clauses
(a) through (i) of Section 902 of this Indenture, in which case, the amendment, supplement or waiver shall bind only each Holder of a Note who has consented to it and every subsequent Holder of a Note or portion of a Note that
evidences the same indebtedness as the consenting Holder’s Note. 
 ARTICLE 10 

GUARANTEES OF NOTES 
 The Notes
shall have the benefit of Subsidiary Guarantees. The provisions of Article Thirteen of the Original Indenture shall not apply to the Notes, and in lieu thereof the following provisions of this Article 10 shall apply to the Notes. 

Section 10.01 Subsidiary Guarantees. 

Subject to this Article 10, each of the Guarantors hereby, jointly and severally, unconditionally guarantees to each Holder of a Note
authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of this Fourth Supplemental Indenture or this Indenture, the Notes held thereby and the Obligations of the
Company hereunder and thereunder, that: (a) the principal of and premium, if any, and 

  
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interest on the Notes will be promptly paid in full when due, subject to any applicable grace period, whether at Stated Maturity, by acceleration, upon repurchase or redemption or otherwise, and
interest on the overdue principal of and premium, if any, and (to the extent permitted by law) interest on the Notes, and all other payment Obligations of the Company to the Holders or the Trustee hereunder or thereunder will be promptly paid in
full and performed, all in accordance with the terms hereof and thereof; and (b) in case of any extension of time of payment or renewal of any Notes or any of such other Obligations, the same will be promptly paid in full when due or performed
in accordance with the terms of the extension or renewal, subject to any applicable grace period, whether at Stated Maturity, by acceleration, upon repurchase or redemption or otherwise. Failing payment when so due of any amount so guaranteed for
whatever reason, the Guarantors will be jointly and severally obligated to pay the same immediately. An Event of Default with respect to the Notes under this Indenture shall constitute an event of default under the Subsidiary Guarantees, and shall
entitle the Holders to accelerate the obligations of the Guarantors hereunder in the same manner and to the same extent as the Obligations of the Company. 

The Guarantors hereby agree that their obligations hereunder shall be unconditional, irrespective of the validity, regularity or
enforceability of the Notes or this Fourth Supplemental Indenture or this Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder with respect to any provisions hereof or thereof, the recovery of any judgment
against the Company, any action to enforce the same or any other circumstance (other than complete performance) which might otherwise constitute a legal or equitable discharge or defense of a Guarantor. Each Guarantor further, to the extent
permitted by law, hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all
demands whatsoever and covenants that its Subsidiary Guarantee will not be discharged except by complete performance of the Obligations contained in the Notes and this Indenture. 

If any Holder or the Trustee is required by any court or otherwise to return to the Company, the Guarantors, or any Custodian, Trustee or
other similar official acting in relation to either the Company or the Guarantors, any amount paid by the Company or any Guarantor to the Trustee or such Holder, the Subsidiary Guarantees, to the extent theretofore discharged, shall be reinstated in
full force and effect. Each Guarantor agrees that it shall not be entitled to, and hereby waives, any right of subrogation in relation to the Holders in respect of any Obligations guaranteed hereby. 

Each Guarantor further agrees that, as between the Guarantors, on the one hand, and the Holders and the Trustee, on the other hand,
(a) the maturity of the Obligations guaranteed hereby may be accelerated as provided in Article Five of the Original Indenture for the purposes of its Subsidiary Guarantee, notwithstanding any stay, injunction or other prohibition preventing
such acceleration in respect of the Obligations guaranteed thereby, and (b) in the event of any declaration of acceleration of such Obligations as provided in Article Five of the Original Indenture, such Obligations (whether or not due and
payable) shall forthwith become due and payable by the Guarantor for the purpose of its Subsidiary Guarantee. The Guarantors shall have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not
impair the rights of the Holders under the Subsidiary Guarantees. 

  
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 Section 10.02 Notation of Subsidiary Guarantees. 

The Subsidiary Guarantees shall be evidenced by the execution and delivery of this Fourth Supplemental Indenture or a supplement to this
Indenture and no notation of any Subsidiary Guarantee need be endorsed on any Note, notwithstanding any contrary provision of the Original Indenture. 

Section 10.03 Guarantors May Consolidate, Etc., on Certain Terms. 

(a) A Guarantor shall not consolidate or merge with or into another Person (whether or not the Guarantor is the surviving entity), or 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 (other than the Company or another Guarantor), unless, (i) either (1) the
Person acquiring the properties or assets in any such sale or other disposition or the Person formed by or surviving any such consolidation or merger (if other than such Guarantor) unconditionally assumes all the obligations of such Guarantor,
pursuant to a supplemental indenture, substantially in the form of Exhibit B hereto, under the Notes, this Indenture and its Subsidiary Guarantee on terms set forth therein, or (2) the Net Proceeds of such sale or other disposition are
applied in accordance with the provisions of Section 4.10 hereof, and (ii) immediately after giving effect to such transaction, no Default or Event of Default exists. 

(b) In the case of any such consolidation or merger and upon the assumption by the successor Person, by supplemental indenture, executed and
delivered to the Trustee and substantially in the form of Exhibit B hereto, of the Subsidiary Guarantee and the due and punctual performance of all of the covenants of this Indenture to be performed by the Guarantor, such successor Person shall
succeed to and be substituted for the Guarantor with the same effect as if it had been named herein as a Guarantor. 
 Section 10.04 Releases of
Subsidiary Guarantees. 
 The Subsidiary Guarantee of a Guarantor shall be released: 

(1) in connection with any sale or other disposition of all or substantially all of the properties or assets of such Guarantor
(including by way of merger or consolidation) to a Person that is not (either before or after giving effect to such transaction) a Subsidiary of the Company, if the sale or other disposition complies with Section 4.10 hereof; provided
that (i) all Subsidiary Guarantees and other obligations of such Guarantor in respect of all other Indebtedness of the Company and its Restricted Subsidiaries terminate upon consummation of such transaction and (ii) any Investment of the
Company or any other Subsidiary of the Company (other than any Subsidiary of such Guarantor) in such Guarantor or any Subsidiary of such Guarantor in the form of an Obligation or preferred stock is repaid, satisfied, released and discharged in full
upon such release; 
 (2) in connection with any sale or other disposition of all of the Capital Stock of such Guarantor to
a Person that is not (either before or after giving effect to such transaction) a Subsidiary of the Company, if the sale or other disposition complies with Section 4.10 hereof; provided that (i) all Subsidiary Guarantees and other
obligations of 

  
 69 

 
such Guarantor in respect of all other Indebtedness of the Company and its Restricted Subsidiaries terminate upon consummation of such transaction and (ii) any Investment of the Company or
any other Subsidiary of the Company (other than any Subsidiary of such Guarantor) in such Guarantor or any Subsidiary of such Guarantor in the form of an Obligation or preferred stock is repaid, satisfied, released and discharged in full upon such
release; or 
 (3) in the case of any Restricted Subsidiary which after the Issue Date is required to guarantee the Notes
pursuant to Section 4.13 upon the release or discharge in full from its obligations as a borrower or guarantor (as the case may be) under the Credit Agreement and any Capital Markets Indebtedness which resulted, or would result, in such
Restricted Subsidiary’s obligation to guarantee the Notes pursuant to Section 4.13 (including by reason of the termination of the Credit Agreement or such Capital Markets Indebtedness but excluding, if such Restricted Subsidiary was a
guarantor under the Credit Agreement or such other Capital Markets Indebtedness, a release or discharge as a result of repayment under its guarantee thereof); so long as such Restricted Subsidiary does not thereafter become a borrower or guarantor
under the Credit Agreement or incur or guarantee Capital Markets Indebtedness which would result in such Restricted Subsidiary’s obligation to guarantee the Notes pursuant to Section 4.13 without also guaranteeing the Notes; or 

(4) if the Company designates any Restricted Subsidiary that is a Guarantor as an Unrestricted Subsidiary in accordance with
the applicable provisions of this Indenture; or 
 (5) upon Legal Defeasance or Covenant Defeasance or Discharge in
accordance with Article 8 hereof. 
 Upon delivery by the Company to the Trustee of an Officers’ Certificate to the effect that any of
the foregoing clauses (1) – (5) has occurred, the Trustee shall execute any documents reasonably requested by the Company in order to evidence the release of any Guarantor from its obligations under its Subsidiary Guarantee. Any
Guarantor not released from its obligations under its Subsidiary Guarantee shall remain liable for the full amount of principal of, premium, if any, and interest on the Notes and for the other obligations of such Guarantor under this Indenture as
provided in this Article 10. 
 Section 10.05 Limitation on Guarantor Liability. 

The obligations of each Guarantor under its Subsidiary Guarantee will be limited to the maximum amount as will, after giving effect to all
other contingent and fixed liabilities of such Guarantor and after giving effect to any collections from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under its Subsidiary Guarantee or
pursuant to its contribution obligations under this Indenture, result in the obligations of such Guarantor under its Subsidiary Guarantee not constituting a fraudulent conveyance or fraudulent transfer under federal or state law and not otherwise
being void or voidable under any similar laws affecting the rights of creditors generally. 

  
 70 

 Section 10.06 “Trustee” to Include Paying Agent. 

In case at any time any Paying Agent other than the Trustee shall have been appointed by the Company and be then acting hereunder, the term
“Trustee” as used in this Article 10 shall in each case (unless the context shall otherwise require) be construed as extending to and including such Paying Agent within its meaning as fully and for all intents and purposes as if such
Paying Agent were named in this Article 10 in place of the Trustee. 
 ARTICLE 11 

MISCELLANEOUS 
 Section 11.01 Fourth
Supplemental Indenture Controls. 
 To the extent that there is any conflict or inconsistency between the Original Indenture and this
Fourth Supplemental Indenture, the provisions of this Fourth Supplemental Indenture shall control. 
 Section 11.02 No Personal Liability of
Directors, Officers, Employees and Stockholders. 
 No director, officer, employee, incorporator or stockholder or other owner of Capital
Stock of the Company or any Guarantor, as such, shall have any liability for any obligations of the Company or any Guarantor under the Notes, the Subsidiary Guarantees or this Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes and the Subsidiary Guarantees. 

Section 11.03 Governing Law; Waiver of Jury Trial; Submission to Jurisdiction. 

THIS FOURTH SUPPLEMENTAL INDENTURE AND THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.
EACH OF THE PARTIES HERETO, BY ITS ACCEPTANCE THEREOF, HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS
INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY OR THEREBY. EACH OF THE COMPANY AND THE TRUSTEE SUBMIT TO THE JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK SITTING IN THE COUNTY OF NEW YORK, AND OF THE UNITED STATES DISTRICT COURT
FOR THE SOUTHERN DISTRICT OF NEW YORK SITTING IN THE BOROUGH OF MANHATTAN, THE CITY OF NEW YORK, IN ANY ACTION OR PROCEEDING TO ENFORCE ANY OF ITS OBLIGATIONS UNDER THIS INDENTURE OR WITH REGARD TO THE NOTES (BUT THE COMPANY AND THE TRUSTEE WILL NOT
BE PREVENTED FROM REMOVING ANY SUCH ACTION OR PROCEEDING FROM A STATE COURT TO THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK SITTING IN THE BOROUGH OF MANHATTAN, THE CITY OF NEW YORK). 

Section 11.04 Force Majeure. 
 In no
event shall the Trustee be responsible or liable, nor shall the Company be responsible or liable to the Trustee, for any failure or delay in the performance of its obligations 

  
 71 

 
hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or
military disturbances, and nuclear or natural catastrophes or acts of God; it being understood that the Trustee or the Company, as the case may be, shall use reasonable efforts which are consistent with accepted practices to resume performance
as soon as practicable under the circumstances; provided that the foregoing limitations shall not apply to any obligations of Company or the Guarantors under the Notes. 

Section 11.05 No Adverse Interpretation of Other Agreements. 

This Indenture may not be used to interpret any other indenture, loan or debt agreement of the Company or its Subsidiaries or of any other
Person. Any such indenture, loan or debt agreement may not be used to interpret this Indenture. 
 Section 11.06 Table of Contents and Headings.

 The Table of Contents and headings of the Articles and Sections of this Fourth Supplemental Indenture have been inserted for convenience
of reference only, are not to be considered a part of this Fourth Supplemental Indenture and shall in no way modify or restrict any of the terms or provisions hereof. 

Section 11.07 Counterparts. 
 This
Fourth Supplemental Indenture may be signed in counterparts and by the different parties hereto in separate counterparts, each of which shall constitute an original and all of which together shall constitute one and the same instrument. 

Section 11.08 Tax Withholding. 

Notwithstanding any other provision of the Original Indenture or this Fourth Supplemental Indenture, the Trustee shall be entitled to make a
deduction or withholding from any payment which it makes under this Fourth Supplemental Indenture for or on account of any present or future taxes, duties or charges if and to the extent so required by any applicable law and any current or future
regulations or agreements thereunder or official interpretations thereof or any law implementing an intergovernmental approach thereto or by virtue of the relevant holder failing to satisfy any certification or other requirements in respect of the
Notes, in which event the Trustee shall make such payment after such withholding or deduction has been made and shall account to the relevant authorities for the amount so withheld or deducted and shall have no obligation to gross up any payment
hereunder or pay any additional amount as a result of such withholding tax. 
 [Signatures on following page] 

  
 72 

 SIGNATURES 

 

			
	COMPANY:
	
	WHITING PETROLEUM CORPORATION
		
	By:		 /s/ James J. Volker

			James J. Volker
			Chairman and Chief Executive Officer
	
	GUARANTORS:
	
	WHITING OIL AND GAS CORPORATION
		
	By:		 /s/ James J. Volker

			James J. Volker
			Chairman and Chief Executive Officer
	
	WHITING US HOLDING COMPANY
		
	By:		 /s/ James J. Volker

			James J. Volker
			Chairman and Chief Executive Officer
	
	WHITING CANADIAN HOLDING COMPANY ULC
		
	By:		 /s/ James J. Volker

			James J. Volker
			Chairman and Chief Executive Officer
	
	WHITING RESOURCES CORPORATION
		
	By:		 /s/ James J. Volker

			James J. Volker
			Chairman and Chief Executive Officer

 [Signature Page to Fourth Supplemental Indenture] 

 
			
	THE BANK OF NEW YORK MELLON
	TRUST COMPANY, N.A.,
	as Trustee
		
	By:		 /s/ Michael Countryman

	Name:		Michael Countryman
	Title:		Vice President

 [Signature Page to Fourth Supplemental Indenture] 

 RULE 144A/REGULATION S APPENDIX 

ARTICLE 1 
 PROVISIONS RELATING TO
INITIAL NOTES AND ADDITIONAL NOTES 
 Section 1.01 Definitions 

(a) Definitions. For the purposes of this Appendix the following terms shall have the meanings indicated below: 

“Depositary” means The Depository Trust Company, its nominees and their respective successors. 

“Notes” means the Initial Notes and the Additional Notes, treated as a single class. 

“Notes Custodian” means the custodian with respect to a Global Note (as appointed by the Depositary), or any successor Person
thereto and shall initially be the Trustee. 
 “Purchase Agreement” means (1) with respect to the Initial Notes issued
on the Issue Date, the Purchase Agreement dated March 24, 2015 among the Company, the Guarantors and the initial purchasers named therein, and (2) with respect to each issuance of Additional Notes, the purchase agreement or underwriting
agreement among the Company and the Persons purchasing such Additional Notes. 
 “QIB” means a “qualified
institutional buyer” as defined in Rule 144A under the Securities Act. 
 “Registration Rights Agreement” means
(1) with respect to the Initial Notes issued on the Issue Date, the Registration Rights Agreement dated the Issue Date and (2) with respect to each issuance of Additional Notes issued in a transaction exempt from the registration
requirements of the Securities Act, the registration rights agreement, if any, among the Company and the Persons purchasing such Additional Notes under the related Purchase Agreement. 

“Shelf Registration Statement” means the shelf registration statement issued by the Company in connection with the offer and
sale of Initial Notes pursuant to a Registration Rights Agreement. 
 “Transfer Restricted Securities” means Notes that
bear or are required to bear the legend set forth in Section 2.03(b) hereof. 
 Section 1.02 Other Definitions. 

 

			
	 Term
	  	Defined in Section
	 “Agent Members”
	  	2.01(b)
	 “Distribution Compliance Period”
	  	2.01(b)
	 “Global Notes”
	  	2.01(a)
	 “Regulation S”
	  	2.01(a)
	 “Regulation S Notes”
	  	2.01(a)
	 “Restricted Global Note”
	  	2.01(a)
	 “Rule 144A”
	  	2.01(a)
	 “Rule 144A Notes”
	  	2.01(a)

 ARTICLE 2 

THE NOTES 
 Section 2.01 

(a) Form and Dating. Initial Notes offered and sold to QIBs in reliance on Rule 144A (“Rule 144A Notes”) under the Securities
Act (“Rule 144A”) or in reliance on Regulation S (“Regulation S Notes”) under the Securities Act (“Regulation S”), in each case as provided in a Purchase Agreement, shall be issued initially in the form of one or more
permanent global Notes in definitive, fully registered form without interest coupons with the global Notes legend and restricted Notes legend set forth in Annex A to this Fourth Supplemental Indenture (each, a “Restricted Global Note”),
which shall be deposited on behalf of the purchasers of the Initial Notes represented thereby with the Trustee, as custodian for the Depositary (or with such other custodian as the Depositary may direct), and registered in the name of the Depositary
or a nominee of the Depositary, duly executed by the Company and authenticated by the Trustee as hereinafter provided. Beneficial interests in a Restricted Global Note representing Initial Notes sold in reliance on either Rule 144A or Regulation S
may be held through Euroclear or Clearstream, as indirect participants in the Depositary. The aggregate principal amount of the Global Notes may from time to time be increased or decreased by adjustments made on the records of the Trustee and the
Depositary or its nominee as hereinafter provided. Additional Notes or other Notes, in each case that are not Transfer Restricted Securities, shall be issued in global form (with the global Notes legend set forth in Annex A) or in certificated form
as provided in this Indenture. Notes issued in global form and Restricted Global Notes are sometimes referred to in this Appendix as “Global Notes.” The Global Notes are “Global Securities” within the meaning of this Indenture,
and shall be subject to the further provisions of this Indenture with respect thereto. 
 (b) Book-Entry Provisions. This
Section 2.01(b) shall apply only to a Global Note deposited with or on behalf of the Depositary. The Company shall execute and the Trustee shall, in accordance with this Section 2.01(b) and this Indenture, authenticate and deliver
initially one or more Global Notes that (a) shall be registered in the name of the Depositary for such Global Note or Global Notes or the nominee of such Depositary and (b) shall be delivered by the Trustee to such Depositary or pursuant
to such Depositary’s instructions or held by the Trustee as custodian for the Depositary. If such Global Notes are Restricted Global Notes, then separate Global Notes shall be issued to represent Rule 144A Notes and Regulation S Notes so long
as required by law or the Depositary. 
 Members of, or participants in, the Depositary (“Agent Members”) shall have no rights
under this Indenture with respect to any Global Note held on their behalf by the Depositary or by the Trustee as the custodian of the Depositary or under such Global Note, and the Company, the Trustee and any agent of the Company or the Trustee
shall be entitled to treat the Depositary as the absolute owner of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company

 
or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Agent Members, the operation
of customary practices of such Depositary governing the exercise of the rights of a holder of a beneficial interest in any Global Note. 

Until the 40th day after the later of the commencement of the offering of any Initial Notes and the original issue date of such Initial Notes
(such period, the “Distribution Compliance Period”), a beneficial interest in a Restricted Global Note representing Regulation S Notes may be transferred to a Person who takes delivery in the form of an interest in a Restricted Global Note
representing Rule 144A Notes only if the transferor first delivers to the Trustee a written certificate (in the form provided in the form of Note in Annex A) to the effect that such transfer is being made to a Person who the transferor reasonably
believes is purchasing for its own account or accounts as to which it exercises sole investment discretion and that such Person is a QIB, in each case in a transaction meeting the requirements of Rule 144A and in accordance with any applicable
securities laws of any state of the United States or any other jurisdiction. After the expiration of the Distribution Compliance Period, such certification requirements shall not apply to such transfers of beneficial interests in a Restricted Global
Note representing Regulation S Notes. 
 Beneficial interests in a Restricted Global Note representing Rule 144A Notes may be transferred to
a Person who takes delivery in the form of an interest in a Restricted Global Note representing Regulation S Notes, whether before or after the expiration of the Distribution Compliance Period, only if the transferor first delivers to the Trustee a
written certificate (in the form provided in the form of Note in Annex A) to the effect that such transfer is being made in accordance with Rule 904 of Regulation S or Rule 144 (if available). 

(c) Certificated Notes. Except as provided in this Indenture, owners of beneficial interests in Restricted Global Notes shall not be
entitled to receive physical delivery of certificated Notes. Certificated Notes shall not be exchangeable for beneficial interests in Global Notes. 

Section 2.02 Authentication. The Trustee shall authenticate and deliver Notes as provided in this Indenture. 

Section 2.03 Transfer and Exchange. 

(a) Transfer and Exchange of Global Notes. 

(1) The transfer and exchange of Global Notes or beneficial interests therein shall be effected through the Depositary, in
accordance with this Indenture (including applicable restrictions on transfer set forth herein, if any) and the procedures of the Depositary therefor. A transferor of a beneficial interest in a Global Note shall deliver to the Registrar a written
order given in accordance with the Depositary’s procedures containing information regarding the participant account of the Depositary to be credited with a beneficial interest in the Global Note. The Registrar shall, in accordance with such
instructions instruct the Depositary to credit to the account of the Person specified in such instructions a beneficial interest in the Global Note and to debit the account of the Person making the transfer the beneficial interest in the Global Note
being transferred. 

 (2) Notwithstanding any other provisions of this Appendix, a Global Note may not
be transferred as a whole except 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. 
 (3) In the event that a Restricted Global Note is exchanged for Notes in
certificated form pursuant to this Indenture, prior to the effectiveness of a Shelf Registration Statement with respect to such Notes, such Notes may be exchanged only in accordance with such procedures as are substantially consistent with the
provisions of this Section 2.03 (including the certification requirements set forth on the reverse of the Initial Notes intended to ensure that such transfers comply with Rule 144A or Regulation S, as the case may be) and such other procedures
as may from time to time be adopted by the Company. 
  

	 	(b)	Restricted Notes Legend. 

 (1) Except as permitted by the following
paragraphs (2) and (3), each Note certificate evidencing the Restricted Global Notes (and all Notes issued in exchange therefor or in substitution thereof) shall bear a legend in substantially the following form: 

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF
ANY STATE OR OTHER JURISDICTION. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES ON ITS OWN BEHALF AND ON BEHALF OF ANY INVESTOR ACCOUNT FOR WHICH IT HAS PURCHASED SECURITIES, TO OFFER, SELL OR
OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) THAT IS [IN THE CASE OF RULE 144A NOTES: ONE YEAR AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF
ANY ADDITIONAL NOTES AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY),] [IN THE CASE OF REGULATION S NOTES: 40 DAYS AFTER THE LATER OF THE ORIGINAL ISSUE DATE
HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE DATE ON WHICH THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY) WAS FIRST OFFERED TO PERSONS OTHER THAN DISTRIBUTORS (AS DEFINED IN RULE 902 OF REGULATION S) IN
RELIANCE ON REGULATION S], ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE 

 
SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”), TO A PERSON IT REASONABLY BELIEVES IS A
“QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A,
(D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT,(E) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(a)(1),
(2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS NOT A QUALIFIED INSTITUTIONAL BUYER AND THAT IS PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF ANOTHER INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF
SECURITIES OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (D),
(E) OR (F)TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/ OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. [IN THE
CASE OF REGULATION S NOTES: BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH
REGULATION S UNDER THE SECURITIES ACT.] 
 BY ITS ACQUISITION OF THIS SECURITY, THE HOLDER THEREOF WILL BE DEEMED TO HAVE REPRESENTED AND
WARRANTED THAT EITHER (1) NO PORTION OF THE ASSETS USED BY SUCH HOLDER TO ACQUIRE OR HOLD THIS SECURITY CONSTITUTES THE ASSETS OF AN EMPLOYEE BENEFIT PLAN THAT IS SUBJECT TO TITLE I OF THE U.S. EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974,
AS AMENDED (“ERISA”), OF A PLAN, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER ARRANGEMENT THAT IS SUBJECT TO SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”) OR PROVISIONS UNDER ANY OTHER FEDERAL, STATE,
LOCAL, NON-U.S. OR OTHER LAWS OR REGULATIONS THAT ARE SIMILAR TO SUCH PROVISIONS OF ERISA OR THE CODE (“SIMILAR LAWS”), OR OF AN ENTITY WHOSE UNDERLYING ASSETS ARE CONSIDERED TO INCLUDE “PLAN ASSETS” OF ANY SUCH PLAN, ACCOUNT OR
ARRANGEMENT, OR (2) THE ACQUISITION AND HOLDING OF THIS SECURITY WILL NOT CONSTITUTE A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A SIMILAR VIOLATION UNDER ANY APPLICABLE SIMILAR LAWS. 

 (2) Upon any sale or transfer of a Transfer Restricted Security (including any
Transfer Restricted Security represented by a Restricted Global Note) pursuant to Rule 144 under the Securities Act, the Registrar shall permit the transferee thereof to exchange such Transfer Restricted Security for a certificated Note that does
not bear the legend set forth above and rescind any restriction on the transfer of such Transfer Restricted Security, if the transferor thereof certifies in writing to the Registrar that such sale or transfer was made in reliance on Rule 144 (such
certification to be in the form set forth on the reverse of the Note). 
 (3) After a transfer of any Initial Note pursuant
to and during the period of the effectiveness of a Shelf Registration Statement with respect to such Initial Note, all requirements pertaining to legends on such Initial Note will cease to apply, any requirement that any such Initial Note issued to
certain Holders be issued in global form will cease to apply, and a certificated Initial Note or an Initial Note in global form, in each case without restrictive transfer legends, will be available to the transferee of the Holder of such Initial
Note upon exchange of such transferring Holder’s certificated Initial Note or directions to transfer such Holder’s interest in the Global Note, as applicable. 

 EXHIBIT A 

[FORM OF FACE OF NOTE] 

[Unless this certificate is presented by an authorized representative of The Depository Trust Company, a New York corporation
(“DTC”), to the issuer 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 is requested by an authorized representative of DTC
(and any payment is made to Cede & Co. or to such other entity as is 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 since the registered
owner hereof, Cede & Co., has an interest herein. 
 THIS SECURITY IS A GLOBAL SECURITY AS REFERRED TO IN THE INDENTURE
HEREINAFTER REFERENCED. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR THE INDIVIDUAL SECURITIES REPRESENTED HEREBY, THIS GLOBAL SECURITY 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.]1

 [THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE
SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR
UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES ON ITS OWN BEHALF AND ON BEHALF OF ANY INVESTOR ACCOUNT FOR WHICH IT HAS PURCHASED SECURITIES, TO OFFER, SELL
OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) THAT IS [IN THE CASE OF RULE 144A NOTES: ONE YEAR AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE
OF ANY ADDITIONAL NOTES AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY),] [IN THE CASE OF REGULATION S NOTES: 40 DAYS AFTER THE LATER OF THE ORIGINAL ISSUE
DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE DATE ON WHICH THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY) WAS FIRST OFFERED TO PERSONS OTHER THAN DISTRIBUTORS (AS DEFINED IN RULE 902 OF REGULATION S) IN
RELIANCE ON REGULATION S], ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE 

 
  

	1 	 If this Note is a Global Security, add this provision. 

  
 A - 1 

 
FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”), TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A THAT
PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE
UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT,(E) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS NOT A QUALIFIED
INSTITUTIONAL BUYER AND THAT IS PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF ANOTHER INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF SECURITIES OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (D), (E) OR (F)TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL,
CERTIFICATION AND/ OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. [IN THE CASE OF REGULATION S NOTES: BY ITS ACQUISITION HEREOF, THE HOLDER
HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT. ]2 
 BY ITS ACQUISITION OF THIS SECURITY, THE HOLDER THEREOF WILL BE DEEMED TO HAVE
REPRESENTED AND WARRANTED THAT EITHER (1) NO PORTION OF THE ASSETS USED BY SUCH HOLDER TO ACQUIRE OR HOLD THIS SECURITY CONSTITUTES THE ASSETS OF AN EMPLOYEE BENEFIT PLAN THAT IS SUBJECT TO TITLE I OF THE U.S. EMPLOYEE RETIREMENT INCOME
SECURITY ACT OF 1974, AS AMENDED (“ERISA”), OF A PLAN, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER ARRANGEMENT THAT IS SUBJECT TO SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”) OR PROVISIONS UNDER ANY
OTHER FEDERAL, STATE, LOCAL, NON-U.S. OR OTHER LAWS OR REGULATIONS THAT ARE SIMILAR TO SUCH PROVISIONS OF ERISA OR THE CODE (“SIMILAR LAWS”), OR OF AN ENTITY WHOSE UNDERLYING ASSETS ARE CONSIDERED TO INCLUDE “PLAN ASSETS” OF ANY
SUCH PLAN, ACCOUNT OR ARRANGEMENT, OR (2) THE ACQUISITION AND HOLDING OF THIS SECURITY WILL NOT CONSTITUTE A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A SIMILAR VIOLATION UNDER ANY APPLICABLE
SIMILAR LAWS. 
 WHITING PETROLEUM CORPORATION 
  

 

	2 	Include for Restricted Global Notes. 

  
 A - 2 

					
	No.     		$		
			
			CUSIP No.		
			ISIN No.		

 6.25% Senior Note due 2023 

Whiting Petroleum Corporation, a Delaware corporation, promises to pay to
            , or registered assigns, the principal sum of          Dollars on April 1, 2023 [or such greater or lesser amount as may be
indicated on Schedule A hereto].1 
 Interest Payment Dates: April 1 and
October 1. 
 Record Dates: March 15 and September 15. 

Additional provisions of this Note are set forth on the other side of this Note. 

 

									
	ATTEST:				WHITING PETROLEUM CORPORATION
					
	By:		  
				By:		  

	Name:						Name:		
	Title:						Title:		

  
 A - 3 

 TRUSTEE’S CERTIFICATE OF 

AUTHENTICATION 
 This is one of the Securities of
the 
 series designated therein referred to in the 

within-mentioned Indenture. 
  

			
	THE BANK OF NEW YORK MELLON
	TRUST COMPANY, N.A., As Trustee
		
	By		  

			Authorized Officer

 Dated: 

  
 A - 4 

 [FORM OF REVERSE SIDE OF NOTE] 

6.25% Senior Note due 2023 

Capitalized terms used herein but not defined shall have the meanings assigned to them in the Indenture referred to below unless otherwise
indicated. 
 1. Interest. Whiting Petroleum Corporation, a Delaware corporation (the “Company”), promises to pay interest
on the principal amount of this Note at 6.25% per annum from [                    ][March 27,
2015]3 until maturity [and shall pay any Additional Interest payable pursuant to Section 2(d) of the Registration Rights Agreement referred to below. References herein to “interest”
include such Additional Interest to the extent applicable]4. The Company will pay interest semi-annually in arrears on April 1 and October 1 of each year, commencing October 1,
2015, or if any such day is not a Business Day, on the next succeeding Business Day (each an “Interest Payment Date”). Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been
paid, from [                    ][March 27, 2015]5; provided that if there is no existing
Default or Event of Default in the payment of interest, and if this Note is authenticated between a record date referred to on the face hereof and the next succeeding Interest Payment Date, interest shall accrue from such next succeeding Interest
Payment Date, except in the case of the original issuance of Notes, in which case interest shall accrue from the date of authentication. The Company shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on
overdue principal and premium, if any, from time to time on demand at a rate that is the rate then in effect; it shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest
(without regard to any applicable grace periods) from time to time on demand at the same rate to the extent lawful. Interest will be computed on the basis of a 360-day year of twelve 30-day months. 

2. Method of Payment. The Company will pay interest on the Notes to the Persons who are registered Holders of Notes at the close of
business on the March 15 or September 15 next preceding the Interest Payment Date, even if such Notes are cancelled after such record date and on or before such Interest Payment Date, except as provided in Section 307 of the Indenture
with respect to Defaulted Interest. Holders must surrender Notes to the Paying Agent to collect payments of principal and premium, if any, together with accrued and unpaid interest due at maturity. The Notes will be payable as to principal, premium,
if any, and interest at the office or agency of the Company maintained for such purpose within the City and State of New York, or, at the option of the Company, payment of interest may be made by check mailed to the Holders at their addresses set
forth in the Security Register of Holders, and provided that payment by wire transfer of immediately available funds will be required with respect to any amounts due on all Global Securities and all other Notes the Holders of which shall have
provided wire transfer instructions to the Company or the Paying Agent. Such payment shall 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 	Include for Initial Notes. 

	4 	Include for Initial Notes and Additional Notes as applicable. 

	5 	Include for Initial Notes. 

  
 A - 5 

 3. Paying Agent and Registrar. Initially, The Bank of New York Mellon Trust Company, N.A.,
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 Domestic Subsidiaries may act in any such
capacity. 
 4. Indenture. This Note is one of a duly authorized issue of the series of Securities of the Company designated as its
6.25 % Senior Notes due 2023 (the “Notes”), issued under a Senior Indenture, dated as of September 12, 2013 (“Original Indenture”), among the Company, the Guarantors and the Trustee, as supplemented and amended by the
Fourth Supplemental Indenture (herein so called), dated as of March 27, 2015 (the Original Indenture, as so supplemented and amended, being called herein the “Indenture”). Capitalized terms herein are used as defined in the Indenture
unless otherwise indicated. 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 of 1939, as amended (15 U.S. Code §§ 77aaa-77bbbb). The Notes are
subject to all such terms, and Holders are referred to the Indenture and such Act for a statement of such terms. The Notes are unsecured senior obligations of the Company limited to $750,000,000 aggregate principal amount in the case of Notes issued
on the Issue Date. The Company may, subject to Sections 2.05 and 4.09 of the Fourth Supplemental Indenture, issue Additional Notes under the Indenture after the Issue Date in either a limited or an unlimited aggregate principal amount. Any
Additional Notes so issued and the Initial Notes shall be treated as a single class under the Indenture. 
 5. Optional Redemption.

 (a) Except as set forth in subparagraph (b) of this Paragraph 5 or in Section 4.15 of the Fourth Supplemental Indenture, the
Company shall not have the option to redeem the Notes prior to January 1, 2023. 
 (b) At any time prior to January 1, 2023, the
Company may on any one or more occasions redeem the Notes, in whole or in part, at a redemption price equal to 100% of the principal amount thereof plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the Redemption Date
(subject to the right of Holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Redemption Date). 

(c) Notwithstanding the provisions of subparagraph (a) of this Paragraph 5, at any time on or after January 1 2023, the Company may
on any one or more occasions redeem the Notes, in whole or in part, at the redemption price of 100% of the aggregate principal amount thereof, together with accrued and unpaid interest, if any, to the Redemption Date (subject to the right of Holders
of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Redemption Date). 
 6.
Mandatory Redemption. 
 Except as set forth in paragraph 7 below, the Company shall not be required to make mandatory redemption or
sinking fund payments with respect to the Notes or to repurchase the Notes at the option of the Holders. 

  
 A - 6 

 7. Repurchase at Option of Holder. 

(a) Within 30 days following the occurrence of a Change of Control Triggering Event, the Company shall make an offer (a “Change of Control
Offer”) to repurchase all or any part (equal to $2,000 or any integral $1,000 multiple in excess thereof) of each Holder’s Notes at a purchase price equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and
unpaid interest, if any, to the date of settlement (the “Change of Control Settlement Date”), subject to the right of Holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to
the Change of Control Settlement Date. Within 30 days following any Change of Control Triggering Event, the Company shall mail (or otherwise deliver in accordance with the applicable procedures of the Depositary) a notice of the Change of Control
Offer to each Holder and the Trustee describing the transaction that constitutes the Change of Control Triggering Event and setting forth the procedures governing the Change of Control Offer as required by Section 4.15 of the Fourth
Supplemental Indenture. 
 (b) On the 361st day after an Asset Sale (or at the Company’s option, an earlier date), if the aggregate
amount of Excess Proceeds then exceeds $50.0 million, the Company shall commence an offer to all Holders of Notes (an “Asset Sale Offer”) pursuant to Section 3.04 of the Fourth Supplemental Indenture, and to all holders of other Pari
Passu Indebtedness 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, to purchase the maximum principal amount of Notes and such Pari Passu
Indebtedness that may be purchased out of the Excess Proceeds, at an offer price in cash in an amount equal to 100% of the principal amount of the Notes plus accrued and unpaid interest, if any, thereon to Settlement Date, subject to the right of
Holders of record on the relevant record date to receive interest due on an Interest Payment Date that is on or prior to the Settlement Date, in accordance with the procedures set forth in the Indenture. If any Excess Proceeds remain after
consummation of an Asset Sale Offer, the Company may use such remaining Excess Proceeds for any purpose not otherwise prohibited by the Indenture. If the aggregate principal amount of Notes surrendered by Holders thereof and Pari Passu Indebtedness
surrendered by holders or lenders, collectively, exceeds the amount of Excess Proceeds, the Trustee shall select the Notes and other Pari Passu Indebtedness to be purchased on a pro rata basis on the basis of the aggregate accreted value (if issued
with original issue discount) or principal amount of tendered notes and Pari Passu Indebtedness (provided that the selection of such Pari Passu Indebtedness shall be made pursuant to the terms of such Pari Passu Indebtedness) (with such
adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or integral $1,000 multiples in excess thereof, shall be purchased). Holders of Notes that are the subject of an offer to purchase will receive 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” on the reverse of the Notes. 

8. Notice of Redemption. Notice of redemption will be mailed (or otherwise delivered in accordance with the applicable procedures of
the Depositary) at least 30 days but not more than 60 days (except as otherwise provided in the Indenture if the notice is issued in connection with a Covenant Defeasance, Legal Defeasance or Discharge) before the Redemption Date to each Holder
whose Notes are to be redeemed at its registered address. 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. On and after the
Redemption Date interest ceases to accrue on Notes or portions thereof called for redemption. Notices of redemption may, in the Company’s discretion, be subject to one or more conditions precedent. 

  
 A - 7 

 9. Denominations, Transfer, Exchange. The Notes are in registered form without coupons in
denominations of $2,000 and any integral multiple of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as provided in the Indenture. The Company or the Trustee may require a Holder, among other things, to
furnish appropriate endorsements and transfer documents, and may require a Holder to pay any taxes due on transfer or exchange. 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, it need not exchange or register the transfer of any Notes for a period of 15 days before the day of the sending of a notice of redemption of Notes selected for redemption. 

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, the Notes or the Subsidiary Guarantees may be
amended or supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes, and any existing default or compliance with any provision of the Indenture, the Notes or the Subsidiary
Guarantees may be waived with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes. Without the consent of any Holder of a Note, the Indenture, the Notes or the Subsidiary Guarantees may be
amended or supplemented to cure any ambiguity, omission, defect or inconsistency, to provide for uncertificated Notes in addition to or in place of certificated Notes, to provide for the assumption of the Company’s or a Guarantor’s
obligations to Holders pursuant to Article 5 of the Fourth Supplemental Indenture, to make any change that would provide any additional rights or benefits to the Holders or that does not adversely affect the legal rights under the Indenture of
any such Holder, to secure the Notes or the Subsidiary Guarantees, to provide for the issuance of Additional Notes in accordance with the limitations set forth in the Indenture, to add any additional Guarantor with respect to the Notes or to
evidence the release of any Guarantor from its Subsidiary Guarantee, in each case as provided in the Indenture, to comply with the requirements of the Commission in order to effect or maintain the qualification of the Indenture under the Trust
Indenture Act, to evidence or provide for the acceptance of appointment under the Indenture of a successor Trustee, to provide for the issuance of Exchange Notes or private exchange notes (which shall be identical to Exchange Notes except that they
will not be freely transferable) and which shall be treated, together with any outstanding notes, as a single class of securities, to conform the text of the Indenture, the Notes or the Subsidiary Guarantees to any provision of the “Description
of notes” in the offering memorandum relating to the offering of the Initial Notes; and to make any amendment to the provisions of the Indenture relating to the transfer and legending of notes as permitted by the Indenture, including, without
limitation, to facilitate the issuance and administration of the notes, Exchange Notes or, if Incurred in compliance with the Indenture, Additional Notes; provided, however, that (A) compliance with the Indenture as so amended
would not result in Notes being transferred in violation of the Securities Act or any applicable securities law and (B) such amendment does not materially and adversely affect the rights of Holders to transfer Notes. 

12. Defaults and Remedies. Events of Default with respect to the Notes include: (i) default for 30 days in the payment when due of
interest on the Notes; (ii) default in payment when due of the principal of or premium, if any, on the Notes, whether upon Stated Maturity, 

  
 A - 8 

 
redemption, or otherwise; (iii) failure by the Company to comply with the provisions of Section 5.01 of the Fourth Supplemental Indenture or to consummate a purchase of Notes when
required pursuant to Section 4.10 or 4.15 of the Fourth Supplemental Indenture; (iv) failure by the Company to comply for 30 days after notice by the Trustee or Holders of 25% of the outstanding principal amount of the Notes with Sections
4.07 and 4.09 of the Fourth Supplemental Indenture or, except in the case of a failure to purchase Notes when required described above in clause (iii), Section 4.10 and 4.15 of the Fourth Supplemental Indenture; (v) failure by the Company
or a Guarantor for 60 days (or 180 days in the case of Reporting Failure) after notice to comply with any of its other agreements in the Indenture or the Notes; (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), whether such
Indebtedness or guarantee now exists or is created after the Issue Date, if such default (a) is caused by a failure to pay principal of, or premium or interest, if any, on such Indebtedness prior to the expiration of any grace period provided
in such Indebtedness (a “Payment Default”) or (b) results in the acceleration of such Indebtedness prior to its Stated 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 $100.0 million or more; provided, that if any such default is cured or waived or any such acceleration is
rescinded, or such Indebtedness is repaid, within a period of 20 days from the continuation of such default beyond any applicable grace period or the occurrence of such acceleration, as the case may be, such Event of Default under the Indenture and
any consequential acceleration of the Notes shall be automatically rescinded unless such rescission would conflict with any judgment or decree of a court of competent jurisdiction; (vii) failure by the Company or any of its Significant
Subsidiaries to pay final judgments aggregating in excess of $100.0 million, which judgments are not paid, discharged or stayed (including a stay pending appeal) for a period of 60 days after the date of such final judgment (or, if later, the date
when payment is due pursuant to such judgment); (viii) except as permitted by the Indenture, any Subsidiary Guarantee is held in any 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 (other than by reason of release of a Guarantor from its Subsidiary Guarantee in accordance with the terms of the
Indenture); and (ix) certain events of bankruptcy, insolvency or reorganization with respect to the Company, any Significant Subsidiary or any group of Subsidiaries that, taken together, would constitute a Significant Subsidiary as specified in
Section 501(8) or 501(9) of the Indenture. If any Event of Default occurs and is continuing, the Trustee, by notice to the Company, or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes, by notice to the
Company and the Trustee, may declare all the Notes to be due and payable immediately. Notwithstanding the preceding, in the case of an Event of Default arising from certain events of bankruptcy, insolvency or reorganization with respect to the
Company, any Significant Subsidiary or any group of Subsidiaries that, taken together, would constitute a Significant Subsidiary described in Section 6.01(9) or (10) of the Fourth Supplemental Indenture), all outstanding Notes will become
due and payable without further action or notice. Holders 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 conferred on it. The Trustee may withhold from Holders notice of any continuing Default or Event of Default with respect to the Notes (except a Default or Event of Default relating to the
payment of principal, premium, if any, or interest) if it determines that withholding notice is in their interest. The Holders of a majority in principal amount of the 

  
 A - 9 

 
Notes then outstanding by notice to the Trustee may on behalf of the Holders of all of the Notes waive any past Default or Event of Default with respect to the Notes and its consequences under
the Indenture except a continuing Default or Event of Default in the payment of the principal of or premium, if any, or interest on the Notes. The Company is required to deliver to the Trustee annually a statement regarding compliance with the
Indenture, and, so long as any Notes are outstanding, the Company is required upon becoming aware of any Default or Event of Default with respect to the Notes, to deliver to the Trustee a statement specifying such Default or Event of Default. 

13. Defeasance and Discharge. The Notes are subject to defeasance and discharge upon the terms and conditions specified in the
Indenture. 
 14. No Recourse Against Others. No director, officer, employee, incorporator or stockholder or other owner of Capital
Stock of the Company or any Guarantor, as such, shall have any liability for any obligations of the Company or any Guarantor under the Notes, the Subsidiary Guarantees or the Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes and the Subsidiary Guarantees. 

15. Authentication. This Note shall not be valid until authenticated by the manual signature of an authorized signatory of the Trustee
or an authenticating agent. 
 16. 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). 

17. 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 and corresponding ISIN 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. 

18. Governing Law. THE INDENTURE AND THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK. 
 19. Successor Entity. In the event a successor assumes all the obligations of the Company under the Notes and the Indenture,
pursuant to the terms thereof, the Company will be released from all such obligations. 
 [20. Additional Rights of Holders of Transfer
Restricted Securities. In addition to the rights provided to Holders of Notes under the Indenture, Holders of Notes shall have all the rights set forth in the Registration Rights Agreement dated as of March 27, 2015, among the Company, the
Guarantors and the initial purchasers named therein (the “Registration Rights Agreement”).]6 
  

 

	6 	Include in Initial Notes and Additional Notes as applicable. 

  
 A - 10 

 The Company will furnish to any Holder upon written request and without charge a copy of the
Indenture. Requests may be made to: 
 Whiting Petroleum Corporation 

1700 Broadway, Suite 2300 

Denver, Colorado 80290-2300 

Attention: Chief Financial Officer 

  
 A - 11 

 ASSIGNMENT FORM 

To assign this Note, fill in the form below: 

I or we assign and transfer this Note to 
  

 
  

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

 
  

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

and irrevocably appoint                      agent 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 other side of this Note.

 [In connection with any transfer of any of the Notes evidenced by this certificate occurring prior to the expiration of one
year after the later of the date of original issuance of such Notes (or the date of any subsequent reopening of the Notes) and the last date, if any, on which such Notes were owned by the Company or any Affiliate of the Company (or, in the case of
Regulation S Notes, prior to the expiration of the Distribution Compliance Period), the undersigned confirms that such Notes are being transferred in accordance with its terms: 

CHECK ONE BOX BELOW 
  

					
	1.	  	 ̈	  	to the Company; or
			
	2.	  	 ̈	  	pursuant to an effective registration statement under the Securities Act of 1933; or
			
	3.	  	 ̈	  	inside the United States to a person who the undersigned reasonably believes is a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act of 1933) that is purchasing for its own account or
for the account of a qualified institutional buyer to whom notice is given that such transfer is being made in reliance on Rule 144A, in each case pursuant to and in compliance with Rule 144A under the Securities Act of 1933; or
			
	4.	  	 ̈	  	outside the United States in an offshore transaction within the meaning of Regulation S under the Securities Act in compliance with Rule 904 under the Securities Act of 1933; or
			
	5.	  	 ̈	  	pursuant to the exemption from registration provided by Rule 144 under the Securities Act of 1933.

 Unless one of the boxes is checked, the Trustee will refuse to register any of the Notes evidenced by this certificate in the
name of any person other than the registered holder thereof; provided, 

  
 A - 12 

 
however, that if box (4) or (5) is checked, the Trustee shall be entitled to require, prior to registering any such transfer of the Notes, such legal opinions, certifications and
other information as the Company has reasonably requested 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 of 1933, such as the
exemption provided by Rule 144 under such Act. 
  

	
	  

	Signature

 TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED. 

The undersigned represents and warrants that it is purchasing this Note for its own account or an account with respect to which it exercises sole investment
discretion and that it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act of 1933, and is aware that the sale to it is being made in reliance on Rule 144A and
acknowledges that it has received such information regarding the Company and any Guarantors as the undersigned has requested pursuant to Rule 144A or has determined not to request such information and that it is aware that the transferor is relying
upon the undersigned’s foregoing representations in order to claim the exemption from registration provided by Rule 144A. 
  

							
	Dated:                    						  

							Notice: To be executed by an executive officer]7

  
  

	7 	Include for Transfer Restricted Securities 

  
 A - 13 

 OPTION OF HOLDER TO ELECT PURCHASE 

If you want to elect to have this Note purchased by the Company pursuant to Section 4.10 or 4.15 of the Fourth Supplemental Indenture,
check the box below: 
  

 ̈ 

If you want to elect to have only part of this Note purchased by the Company pursuant to Section 4.10 or Section 4.15 of the Fourth
Supplemental Indenture, state the amount (in minimum denomination of equal to $2,000 or any integral $1,000 multiple in excess thereof) you elected to have purchased: $         

 

							
	Date:                     	 		 	Your	 	  

		 		 	Signature:	 	
		 		 		 	 (Sign exactly as your name appears on the other side of this Note)

			
		 		 	Soc. Sec. or Tax Identification No.:             

 
  

			
	Signature Guarantee:	 	  

		 	(Signature must be guaranteed)

 Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the
Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Registrar in addition to, or in
substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended. 

  
 A - 14 

 [TO BE ATTACHED TO GLOBAL SECURITY] 

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY 

The following increases or decreases in this Global Security have been made: 
  

									
	 Date
	 	 Amount of

decrease in
 Principal

Amount of this
Global Security
	 	 Amount of

increase in
 Principal

Amount of this

Global Security
	 	 Principal

Amount of this

Global Security
 following
such
 decrease or

increase
	 	 Signature of

authorized
 officer

of Trustee

		 		 		 		 	
		 		 		 		 	
		 		 		 		 	
		 		 		 		 	

  
 A - 15 

 Exhibit B 
  

 
 WHITING PETROLEUM CORPORATION 

and 
 the Guarantors named herein

  
  

6.25% SENIOR NOTES DUE 2023 
  

 
 FORM OF
SUPPLEMENTAL INDENTURE 
 AND AMENDMENT — SUBSIDIARY GUARANTEE 

DATED AS OF                  ,      

 
  

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 

as Trustee 
  

 
  

 

  
 B-1 

 This SUPPLEMENTAL INDENTURE, dated as of
                 ,     is among Whiting Petroleum Corporation, a Delaware corporation (the “Company”), each of the parties identified under
the caption “Guarantors” on the signature page hereto (the “Guarantors”) and The Bank of New York Mellon Trust Company, N.A., a national banking association, as Trustee. 

RECITALS 
 WHEREAS, the Company,
the initial Guarantors and the Trustee entered into a Senior Indenture, dated as of September 12, 2013 (the “Original Indenture”), as supplemented and amended by the Fourth Supplemental Indenture (herein so called) thereto, dated as
of March 27, 2015 (the Original Indenture as so supplemented and amended being called herein the “Indenture”), pursuant to which the Company has issued [$750,000,000]8 in principal
amount of 6.25% Senior Notes due 2023 (the “Notes”); and 
 WHEREAS, Section 9.01(vii) of the Fourth Supplemental Indenture
provides that the Company, the Guarantors and the Trustee may amend or supplement the Indenture in order to add Guarantors with respect to the Notes, without the consent of the Holders; and 

WHEREAS, all acts and things prescribed by the Indenture, by law and by the Certificate of Incorporation and the Bylaws (or comparable
constituent documents) of the Company, of the Guarantors and of the Trustee necessary to make this Supplemental Indenture a valid instrument legally binding on the Company, Guarantors and the Trustee, in accordance with its terms, have been duly
done and performed; 
 NOW, THEREFORE, to comply with the provisions of the Indenture and in consideration of the above premises, the
Company, the Guarantors and the Trustee covenant and agree for the equal and proportionate benefit of the respective Holders as follows: 

ARTICLE 1 
 Section 1.01.
This Supplemental Indenture is supplemental to the Indenture and does and shall be deemed to form a part of, and shall be construed in connection with and as part of, the Indenture for any and all purposes. 

Section 1.02. This Supplemental Indenture shall become effective immediately upon its execution and delivery by each of the Company, the
Guarantors and the Trustee. 
 ARTICLE 2 

From this date, by executing this Supplemental Indenture, the Guarantors whose signatures appear below shall be Guarantors with respect to the
Notes on terms contemplated by and subject to the provisions of Article 10 of the Fourth Supplemental Indenture. 
  

 

	8 	Amount to be raised in the event of the issuance of Additional Notes 

  
 B – 2 

 ARTICLE 3 

Section 3.01. Except as specifically modified herein, the Indenture and the Notes are in all respects ratified and confirmed (mutatis
mutandis) and shall remain in full force and effect in accordance with their terms with all capitalized terms used herein without definition having the same respective meanings ascribed to them as in the Indenture. 

Section 3.02. Except as otherwise expressly provided herein, no duties, responsibilities or liabilities are assumed, or shall be
construed to be assumed, by the Trustee by reason of this Supplemental Indenture. This Supplemental Indenture is executed and accepted by the Trustee subject to all the terms and conditions set forth in the Indenture with the same force and effect
as if those terms and conditions were repeated at length herein and made applicable to the Trustee with respect hereto. 

Section 3.03. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 

Section 3.04. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of
such executed copies together shall represent the same agreement. 
 [NEXT PAGE IS SIGNATURE PAGE] 

  
 B – 3 

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

			
	WHITING PETROLEUM CORPORATION
		
	By		  

	Name:		[    ]
	Title:		[    ]
	
	ADDITIONAL GUARANTOR:
	
	[NAME]
		
	By		  

	Name:		[    ]
	Title:		[    ]
	
	TRUSTEE:
	
	 THE BANK OF NEW YORK MELLON
 TRUST
COMPANY, N.A., as Trustee

		
	By		  

  
 B – 4EX-10.1

 Exhibit 10.1 

EXECUTION VERSION 
 REGISTRATION
RIGHTS AGREEMENT 
 This REGISTRATION RIGHTS AGREEMENT dated March 27, 2015 (this “Agreement”) is entered into by
and among Whiting Petroleum Corporation, a Delaware corporation (the “Company”), Whiting Oil and Gas Corporation, a Delaware corporation (“WOGC”), Whiting US Holding Company, a Delaware corporation (“Whiting
US”), Whiting Canadian Holding Company ULC, a British Columbia unlimited liability company (“Whiting Canadian”), Whiting Resources Corporation, a Colorado corporation (together with WOGC, Whiting US and Whiting Canadian,
the “Initial Guarantors”), and J.P. Morgan Securities LLC (“J.P. Morgan”), for itself and as representative of the several initial purchasers listed in Schedule 1 to the Purchase Agreement (as defined below)
(collectively, the “Initial Purchasers”). The Company and the Guarantors are hereinafter referred to collectively as the “Whiting Parties.” 

The Whiting Parties and the Initial Purchasers are parties to the Purchase Agreement dated March 24, 2015 (the “Purchase
Agreement”), which provides for the sale by the Company to the Initial Purchasers of $750,000,000 aggregate principal amount of the Company’s 6.25% Senior Notes due 2023 (the “Securities”), which will be guaranteed on
an unsecured senior basis by the Guarantors. As an inducement to the Initial Purchasers to enter into the Purchase Agreement, the Whiting Parties have agreed to provide to the Initial Purchasers and their direct and indirect transferees the
registration rights set forth in this Agreement. The execution and delivery of this Agreement is a condition to the closing under the Purchase Agreement. 

In consideration of the foregoing, the parties hereto agree as follows: 

1. Definitions. As used in this Agreement, the following terms shall have the following meanings: 

“Additional Guarantor” shall mean any subsidiary of the Company that executes a Subsidiary Guarantee under the Indenture
after the date of this Agreement. 
 “Business Day” shall mean any day that is not a Saturday, Sunday or other day on which
commercial banks in New York City are authorized or required by law to remain closed. 
 “Company” shall have the meaning
set forth in the preamble and shall also include the Company’s successors. 
 “DTC” shall mean the Depository Trust
Company. 
 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to time. 

“Exchange Dates” shall have the meaning set forth in Section 2(a)(ii) hereof. 

“Exchange Offer” shall mean the exchange offer by the Whiting Parties of Exchange Securities for Registrable Securities
pursuant to Section 2(a) hereof. 

 “Exchange Offer Registration” shall mean a registration under the Securities Act
effected pursuant to Section 2(a) hereof. 
 “Exchange Offer Registration Statement” shall mean an exchange offer
registration statement on Form S-4 (or, if applicable, on another appropriate form) and all amendments and supplements to such registration statement, in each case including the Prospectus contained therein, all exhibits thereto and any document
incorporated by reference therein. 
 “Exchange Securities” shall mean the senior unsecured notes issued by the Company and
guaranteed by the Guarantor under the Indenture containing terms identical to the Securities (except that the Exchange Securities will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with
this Agreement) and to be offered to Holders of Securities in exchange for Securities pursuant to the Exchange Offer. 
 “Free
Writing Prospectus” means each free writing prospectus (as defined in Rule 405 under the Securities Act) prepared by or on behalf of the Company or used or referred to by the Company in connection with the sale of the Securities or the
Exchange Securities. 
 “Guarantors” shall mean the Initial Guarantors and any Additional Guarantors and their respective
successors. 
 “Holders” shall mean the Initial Purchasers, for so long as they own any Registrable Securities, and each of
their successors, assigns and direct and indirect transferees who become owners of Registrable Securities under the Indenture; provided that for purposes of Sections 4 and 5 of this Agreement, the term “Holders” shall include Participating
Broker-Dealers. 
 “Indemnified Person” shall have the meaning set forth in Section 5(c) hereof. 

“Indemnifying Person” shall have the meaning set forth in Section 5(c) hereof. 

“Indenture” shall mean the Senior Indenture, dated as of September 13, 2013, among the Company, the guarantors named
therein and The Bank of New York Mellon Trust Company, N.A., as trustee, as amended and supplemented by the Fourth Supplemental Indenture relating to the Securities, dated as of March 27, 2015, among the Company, the Guarantors and The Bank of
New York Mellon Trust Company, N.A., as trustee, as amended or supplemented from time to time. 
 “Initial Guarantors”
shall have the meaning set forth in the preamble. 
 “Initial Purchasers” shall have the meaning set forth in the preamble.

 “Inspector” shall have the meaning set forth in Section 3(a)(xiii) hereof. 

“Issue Date” shall mean March 27, 2015. 

“Issuer Information” shall have the meaning set forth in Section 5(a) hereof. 

“J.P. Morgan” shall have the meaning set forth in the preamble. 

  
 2 

 “Majority Holders” shall mean the Holders of a majority of the aggregate
principal amount of the outstanding Registrable Securities; provided that whenever the consent or approval of Holders of a specified percentage of Registrable Securities is required hereunder, any Registrable Securities owned directly or indirectly
by the Company or any of its affiliates shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage or amount; and provided, further, that if the Company shall issue any additional
Securities under the Indenture prior to consummation of the Exchange Offer or, if applicable, the effectiveness of any Shelf Registration Statement, such additional Securities and the Registrable Securities to which this Agreement relates shall be
treated together as one class for purposes of determining whether the consent or approval of Holders of a specified percentage of Registrable Securities has been obtained. 

“Notice and Questionnaire” shall mean a notice of registration statement and selling security holder questionnaire
distributed to a Holder by the Issuer upon receipt of a Shelf Request from such Holder. 
 “Participating Broker-Dealers”
shall have the meaning set forth in Section 4(a) hereof. 
 “Person” shall mean an individual, partnership, limited
liability company, corporation, trust or unincorporated organization, or a government or agency or political subdivision thereof. 

“Prospectus” shall mean the prospectus included in, or deemed a part of, a Registration Statement, including any preliminary
prospectus, and any such prospectus as amended or supplemented by any prospectus supplement, including a prospectus supplement with respect to the terms of the offering of any portion of the Registrable Securities covered by a Shelf Registration
Statement, and by all other amendments and supplements to such prospectus, and in each case including any document incorporated by reference therein. 

“Purchase Agreement” shall have the meaning set forth in the recital. 

“Registrable Securities” shall mean the Securities; provided that the Securities shall cease to be Registrable Securities on
the earliest of (i) when a Registration Statement with respect to such Securities has been declared effective by the SEC and such Securities have been exchanged or disposed of pursuant to such Registration Statement, (ii) if an Exchange
Offer is completed, on or after the Exchange Date with respect to the Holders that are eligible to participate in the Exchange Offer but fail to tender such Securities in the Exchange Offer, or (iii) when such Securities cease to be
outstanding. 
 “Registration Expenses” shall mean any and all expenses incident to performance of or compliance by the
Whiting Parties with this Agreement, including without limitation: (i) all SEC, stock exchange or the Financial Industry Regulatory Authority, Inc. registration and filing fees, (ii) all fees and expenses incurred in connection with
compliance with state securities or blue sky laws (including reasonable fees and disbursements of one counsel for any Underwriters or Holders in connection with blue sky qualification of any Exchange Securities or Registrable Securities),
(iii) all expenses of any Persons approved by the Company in preparing or assisting in preparing, word processing, printing and distributing any Registration Statement, any Prospectus, any Free Writing Prospectus and any amendments or
supplements thereto, any 

  
 3 

 
underwriting agreements, securities sales agreements or other similar agreements and any other documents relating to the performance of and compliance with this Agreement, (iv) all rating
agency fees, (v) all fees and disbursements relating to the qualification of the Indenture under applicable securities laws, including the Trust Indenture Act, (vi) the fees and disbursements of the Trustee and its counsel, (vii) the
fees and disbursements of counsel for the Whiting Parties and, in the case of a Shelf Registration Statement, the reasonable fees and disbursements of one counsel for the Holders (which counsel shall be selected by the Majority Holders and which
counsel may also be counsel for the Initial Purchasers) and (viii) the fees and disbursements of the independent public accountants of the Whiting Parties, including the expenses of any special audits or “comfort” letters required by
or incident to the performance of and compliance with this Agreement, but excluding fees and expenses of counsel to the Initial Purchasers and any Underwriters (other than fees and expenses set forth in clause (ii) above) or the Holders and
underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of Registrable Securities by a Holder. 

“Registration Statement” shall mean any registration statement filed under the Securities Act of the Whiting Parties that
covers any of the Exchange Securities or Registrable Securities pursuant to the provisions of this Agreement and all amendments and supplements to any such registration statement, including post-effective amendments, in each case including the
Prospectus contained therein or deemed a part thereof, all exhibits thereto and any document incorporated by reference therein. 

“SEC” shall mean the United States Securities and Exchange Commission. 

“Securities” shall have the meaning set forth in the recital. 

“Securities Act” shall mean the Securities Act of 1933, as amended from time to time. 

“Shelf Effectiveness Period” shall have the meaning set forth in Section 2(b) hereof. 

“Shelf Registration” shall mean a registration effected pursuant to Section 2(b) hereof. 

“Shelf Registration Statement” shall mean a “shelf” registration statement of the Whiting Parties that covers all
or a portion of the Registrable Securities (but no other securities unless approved by the Holders of a majority of the Registrable Securities to be covered by such Shelf Registration Statement) on an appropriate form under Rule 415 under the
Securities Act, or any similar rule that may be adopted by the SEC, and all amendments and supplements to such registration statement, including post-effective amendments, in each case including the Prospectus contained therein or deemed a part
thereof, all exhibits thereto and any document incorporated by reference therein. 
 “Shelf Request” shall have the meaning
set forth in Section 2(b) hereof. 
 “Subsidiary Guarantee” shall mean the guarantee of the Securities and Exchange
Securities by the Guarantors under the Indenture. 
 “Staff” shall mean the staff of the SEC. 

  
 4 

 “Target Registration Date” shall have the meaning set forth in Section 2(d)
hereof. 
 “Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended from time to time. 

“Trustee” shall mean the trustee with respect to the Securities under the Indenture. 

“Underwriter” shall have the meaning set forth in Section 3(e) hereof. 

“Underwritten Offering” shall mean an offering in which Registrable Securities are sold to an Underwriter for reoffering to
the public. 
 “WOGC” shall have the meaning set forth in the preamble. 

“Whiting Canadian” shall have the meaning set forth in the preamble. 

“Whiting Parties” shall have the meaning set forth in the preamble. 

“Whiting US” shall have the meaning set forth in the preamble. 

2. Registration Under the Securities Act. (a) To the extent not prohibited by any applicable law or applicable interpretations of
the Staff, the Whiting Parties shall use their reasonable best efforts to (i) cause to be filed an Exchange Offer Registration Statement covering an offer to the Holders to exchange all the Registrable Securities for Exchange Securities,
(ii) cause such Exchange Offer Registration Statement be declared effective by the SEC on or prior to the 270th day following the Issue Date and (iii) have such Registration Statement
remain effective until the earlier of (1) 180 days after the last Exchange Date for use by one or more Participating Broker-Dealers or (2) such time as no Participating Broker-Dealer that receives Exchange Securities in exchange for
Securities in the Exchange Offer holds any such Exchange Securities. The Whiting Parties shall commence the Exchange Offer promptly after the Exchange Offer Registration Statement is declared effective by the SEC and use their reasonable best
efforts to complete the Exchange Offer not later than 60 days after such effective date. 
 The Whiting Parties shall commence the Exchange
Offer by mailing the related Prospectus, appropriate letters of transmittal and other accompanying documents to each Holder stating, in addition to such other disclosures as are required by applicable law, substantially the following: 

 

	 	(i)	that the Exchange Offer is being made pursuant to this Agreement and that all Registrable Securities validly tendered and not properly withdrawn will be accepted for exchange; 

 

	 	(ii)	the dates of acceptance for exchange (which shall be a period of at least 20 Business Days from the date such notice is mailed) (or longer if required by applicable laws) (the “Exchange Dates”);

  

	 	(iii)	that any Registrable Security not tendered will remain outstanding and continue to accrue interest but will not retain any rights under this Agreement, except as otherwise specified herein; 

 

	 	(iv)	 that any Holder electing to have a Registrable Security exchanged pursuant to the Exchange Offer will be required to (x) in the case of a Holder
electing to exchange 

  
 5 

	 	
a Registrable Security in global form, to comply with the applicable procedures of DTC for book-entry tenders, and, (y) in the case of a Holder electing to exchange a Registrable Security in
certificated form, to surrender such Registrable Security, together with the appropriate letters of transmittal, to the institution and at the address and in the manner specified in the notice, prior to the close of business on the last Exchange
Date; and 

  

	 	(v)	that any Holder will be entitled to withdraw its election, not later than the close of business on the last Exchange Date, by (x) in the case of a Holder withdrawing its election to exchange a Registrable Security
in global form, complying with the applicable procedures of DTC for withdrawal of tenders, and, (y) in the case of a Holder withdrawing its election to exchange a Registrable Security in certificated form, sending to the institution and at the
address specified in the notice, a telegram, telex, facsimile transmission or letter setting forth the name of such Holder, the principal amount of Registrable Securities delivered for exchange and a statement that such Holder is withdrawing its
election to have such Registrable Securities exchanged. 

 As a condition to participating in the Exchange Offer, a Holder
will be required to represent to the Whiting Parties that (i) any Exchange Securities to be received by it will be acquired in the ordinary course of its business, (ii) at the time of the commencement of the Exchange Offer it has no
arrangement or understanding with any Person to participate in the distribution (within the meaning of the Securities Act) of the Exchange Securities in violation of the provisions of the Securities Act, (iii) it is not an “affiliate”
(within the meaning of Rule 405 under the Securities Act) of any of the Whiting Parties and (iv) if such Holder is a broker-dealer that will receive Exchange Securities for its own account in exchange for Registrable Securities that were
acquired as a result of market-making or other trading activities, then such Holder will deliver a Prospectus (or, to the extent permitted by law, make available a Prospectus to purchasers) in connection with any resale of such Exchange Securities.

 As soon as practicable after the last Exchange Date, the Whiting Parties shall: 

 

	 	(i)	accept for exchange Registrable Securities or portions thereof validly tendered and not properly withdrawn pursuant to the Exchange Offer; and 

 

	 	(ii)	deliver, or cause to be delivered, to the Trustee for cancellation all Registrable Securities or portions thereof so accepted for exchange by the Company and issue, and cause the Trustee to promptly authenticate and
deliver to each Holder, Exchange Securities equal in principal amount to the principal amount of the Registrable Securities surrendered by such Holder. 

The Whiting Parties shall use their reasonable best efforts to complete the Exchange Offer as provided above and shall comply with the
applicable requirements of the Securities Act, the Exchange Act, the Trust Indenture Act and other applicable laws and regulations in connection with the Exchange Offer. Subject to the Section 3(a)(xix), the Exchange Offer shall not be subject
to any conditions, other than that the Exchange Offer does not violate any applicable law or applicable interpretations of the Staff. 
 (b)
In the event that (i) the Whiting Parties determine that the Exchange Offer Registration provided for in Section 2(a) above is not available or may not be completed as soon as 

  
 6 

 
practicable after the last Exchange Date because it would violate any applicable law or applicable interpretations of the Staff, (ii) the Exchange Offer is not for any other reason completed
on or prior to the 270th day following the Issue Date, or (iii) any Initial Purchaser shall make a written request representing that such Initial Purchaser holds Registrable Securities that
are ineligible to be exchanged in the Exchange Offer (a “Shelf Request”) (which Shelf Request must be made to the Whiting Parties on or before the 290th day following the date of this Agreement), the Whiting Parties shall use their
commercially reasonable efforts to cause to be filed as soon as practicable after such determination, date or Shelf Request, as the case may be, a Shelf Registration Statement providing for the sale of all the Registrable Securities by the Holders
thereof and to cause such Shelf Registration Statement to be declared effective by the SEC; provided that no Holder will be entitled to have any Registrable Securities included in any Shelf Registration Statement, or entitled to use the prospectus
forming a part of such Shelf Registration Statement, until such Holder shall have delivered a completed and signed Notice and Questionnaire and provided such other information regarding such Holder to the Company as is contemplated by
Section 3(a)(xvii). 
 In the event that the Whiting Parties are required to file a Shelf Registration Statement pursuant to clause
(iii) of the preceding sentence, the Whiting Parties shall use their commercially reasonable efforts to file and have declared effective by the SEC both an Exchange Offer Registration Statement pursuant to Section 2(a) with respect to all
Registrable Securities and a Shelf Registration Statement (which may be a combined Registration Statement with the Exchange Offer Registration Statement) with respect to offers and sales of Registrable Securities held by the Initial Purchasers after
completion of the Exchange Offer. 
 The Whiting Parties agree to use their commercially reasonable efforts to keep the Shelf Registration
Statement continuously effective for one year or such shorter period that will terminate when all the Registrable Securities covered by the Shelf Registration Statement have been sold pursuant to the Shelf Registration Statement (the “Shelf
Effectiveness Period”). The Whiting Parties further agree to supplement or amend the Shelf Registration Statement, the related Prospectus and any Free Writing Prospectus if required by the rules, regulations or instructions applicable to
the registration form used by the Whiting Parties for such Shelf Registration Statement or by the Securities Act or by any other rules and regulations thereunder for shelf registration or if reasonably requested by a Holder of Registrable Securities
with respect to information relating to such Holder, and to use their commercially reasonable efforts to cause any such amendment to be declared effective, if required, and such Shelf Registration Statement, Prospectus or Free Writing Prospectus, as
the case may be, to become usable as soon as thereafter practicable. The Whiting Parties agree to furnish to the Holders of Registrable Securities copies of any such supplement or amendment promptly after its being used or filed with the SEC. 

(c) The Whiting Parties shall pay all Registration Expenses in connection with any registration pursuant to Section 2(a) or
Section 2(b) hereof. Each Holder shall pay all underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of such Holder’s Registrable Securities pursuant to the Shelf
Registration Statement. 
 (d) An Exchange Offer Registration Statement pursuant to Section 2(a) or a Shelf Registration Statement
pursuant to Section 2(b) hereof will not be deemed to have become effective unless it has been declared effective by the SEC or is automatically effective upon filing with the SEC. 

  
 7 

 In the event that (i) either the Exchange Offer is not completed or the Shelf Registration
Statement, if required pursuant to Section 2(b)(i) or 2(b)(ii) hereof, is not declared effective on or prior to the 270th day following the Issue Date (the “Target Registration
Date”), or (ii) the Company receives a Shelf Request pursuant to Section 2(b)(iii), and the Shelf Registration Statement required to be filed thereby is not declared effective by the SEC by the later of (x) the 270th day following the Issue Date or (y) 90 days after the delivery of such Shelf Request (such later date, the “Shelf Additional Interest Date”), then the interest rate on the
Registrable Securities will be increased by (A) 0.25% per annum for the first 90-day period immediately following the Target Registration Date or the Shelf Additional Interest Date, as applicable, and (B) an additional 0.25% per
annum with respect to each subsequent 90-day period that liquidated damages continue to accrue, in each case until the Exchange Offer is completed or the Shelf Registration Statement, if required hereby, is declared effective by the SEC, as
applicable, or the Securities no longer qualify as Registrable Securities, up to a maximum of 1.00% per annum of additional interest. 

If the Shelf Registration Statement, if required hereby, has been declared effective by the SEC and thereafter either ceases to be effective
or the Prospectus contained therein ceases to be usable at any time during the Shelf Effectiveness Period, and such failure to remain effective or usable exists for more than 45 days (whether or not consecutive) in any 12-month period, then the
interest rate on the Registrable Securities will be increased by (i) 0.25% per annum commencing on the 45th day in such 12-month period and (ii) an additional 0.25% per annum with respect to each subsequent 90-day period (whether
or not consecutive) and ending on such date that the Shelf Registration Statement has again been declared effective by the SEC or the Prospectus again becomes usable, up to a maximum of 1.00% per annum of additional interest. 

(e) Any additional interest paid in accordance with this Section 2 shall be liquidated damages and shall be the sole and
exclusive remedy available to Holders due to a failure by the Whiting Parties to comply with their obligations under Section 2(a) and Section 2(b). 

3. Registration Procedures. (a) In connection with their obligations pursuant to Section 2(a) and Section 2(b) hereof,
the Whiting Parties shall as expeditiously as possible: 
 (i) (A) prepare and file with the SEC a Registration Statement on the
appropriate form under the Securities Act, which form (x) shall be selected by the Whiting Parties, (y) shall, in the case of a Shelf Registration, be available for the sale of the Registrable Securities by the Holders thereof and
(z) shall comply as to form in all material respects with the requirements of the applicable form and include all financial statements required by the SEC to be filed therewith; and use their, in the case of the Exchange Offer Registration
Statement reasonable best efforts, and, in the case of a Shelf Registration Statement, commercially reasonable efforts, to cause such applicable Registration Statement to be declared effective by the SEC and remain effective for the applicable
period in accordance with Section 2 hereof; (B) to the extent any Free Writing Prospectus is used, file with the SEC any Free Writing Prospectus that is required to be filed by the Company or the Guarantors with the SEC in accordance with
the Securities Act and to retain any Free Writing Prospectus not required to be filed; 

  
 8 

 (ii) prepare and file with the SEC such amendments and post-effective amendments to each
Registration Statement as may be necessary to keep such Registration Statement effective for the applicable period in accordance with Section 2 hereof and cause each 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 keep each Prospectus current during the period described in Section 4(3) of and Rule 174 under the Securities Act that is applicable to transactions by brokers or
dealers with respect to the Registrable Securities or Exchange Securities; 
 (iii) in the case of a Shelf Registration, furnish to each
Holder of Registrable Securities, to counsel for the Initial Purchasers, to counsel for such Holders and to each Underwriter of an Underwritten Offering of Registrable Securities, if any, without charge, as many copies of each Prospectus,
preliminary prospectus or Free Writing Prospectus, and any amendment or supplement thereto, as such Holder, counsel or Underwriter may reasonably request in order to facilitate the sale or other disposition of the Registrable Securities thereunder;
and the Whiting Parties consent to the use of such Prospectus, preliminary prospectus or such Free Writing Prospectus and any amendment or supplement thereto in accordance with applicable law by each of the Holders of Registrable Securities and any
such Underwriters in connection with the offering and sale of the Registrable Securities covered by and in the manner described in such Prospectus, preliminary prospectus or such Free Writing Prospectus or any amendment or supplement thereto in
accordance with applicable law; 
 (iv) in the case of the Exchange Offer Registration Statement, use their reasonable best efforts, and, in
the case of a Shelf Registration Statement, use their commercially reasonable efforts, to register or qualify the Registrable Securities under all applicable state securities or blue sky laws of such jurisdictions in the United States as any Holder
of Registrable Securities covered by the Exchange Offer Registration Statement or Shelf Registration Statement, as applicable, shall reasonably request in writing by the time the applicable Registration Statement is declared effective by the SEC;
cooperate with such Holders in connection with any filings required to be made with the Financial Industry Regulatory Authority, Inc.; and do any and all other acts and things that may be reasonably necessary or advisable to enable each Holder to
complete the disposition in each such jurisdiction of the Registrable Securities owned by such Holder; provided that none of the Whiting Parties shall be required to (1) qualify as a foreign corporation or other entity or as a dealer in
securities in any such jurisdiction where it would not otherwise be required to so qualify, (2) file any general consent to service of process in any such jurisdiction or (3) subject itself to taxation in any such jurisdiction if it is not
so subject; 
 (v) notify counsel for the Initial Purchasers and, in the case of a Shelf Registration, notify each Holder of Registrable
Securities and counsel for such Holders promptly and, if requested by any such Holder or counsel, confirm such advice in writing (1) when a Registration Statement has become effective, when any post-effective amendment thereto has been filed
and becomes effective, when any Free Writing Prospectus has been filed and when any amendment or supplement to the Prospectus or any Free Writing Prospectus has been filed, (2) of any request by the SEC or any state securities authority for
amendments and supplements to a Registration Statement, Prospectus or any Free Writing Prospectus or for additional information after the Registration Statement has become effective, (3) of the issuance by the SEC or any state securities
authority of any stop order suspending the effectiveness of a Registration Statement or the initiation of any proceedings for that purpose, including the receipt by the Whiting Parties of 

  
 9 

 
any notice of objection of the SEC to the use of a Shelf Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act, (4) if, between
the applicable effective date of a Shelf Registration Statement and the closing of any sale of Registrable Securities covered thereby, the representations and warranties of any of the Whiting Parties contained in any underwriting agreement,
securities sales agreement or other similar agreement, if any, relating to an offering of such Registrable Securities cease to be true and correct in all material respects or if any of the Whiting Parties receives any notification with respect to
the suspension of the qualification of the Registrable Securities for sale in any jurisdiction or the initiation of any proceeding for such purpose, (5) of the happening of any event during the period a Registration Statement is effective that
makes such Registration Statement or the related Prospectus or any Free Writing Prospectus contain an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading, or that requires the making of any changes in such Registration Statement or Prospectus or any Free Writing Prospectus in order to make the statements therein not misleading and (6) of any
determination by any of the Whiting Parties that a post-effective amendment to a Registration Statement or any amendment or supplement to the Prospectus or any Free Writing Prospectus would be appropriate; 

(vi) in the case of the Exchange Offer Registration Statement, use their reasonable best efforts, and, in the case of a Shelf Registration
Statement, use their commercially reasonable efforts, to obtain the withdrawal of any order suspending the effectiveness of the Exchange Offer Registration Statement or Shelf Registration Statement, as applicable, or, in the case of a Shelf
Registration, the resolution of any objection of the SEC pursuant to Rule 401(g)(2), including by filing an amendment to such Shelf Registration Statement on the proper form, at the earliest practicable moment and provide immediate notice to each
Holder of the withdrawal of any such order or such resolution; 
 (vii) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities, without charge, at least one conformed copy of each Registration Statement and any post-effective amendment thereto (without any documents incorporated therein by reference or exhibits thereto, unless requested); provided,
however, that any such document available on the SEC’s EDGAR database shall satisfy such obligation; 
 (viii) in the case of a Shelf
Registration, cooperate with the Holders of Registrable Securities in certificated form to facilitate the timely preparation and delivery of certificates representing Registrable Securities to be sold and not bearing any restrictive legends and
enable such Registrable Securities to be issued in such denominations and registered in such names (consistent with the provisions of the Indenture) as such Holders may reasonably request at least two Business Days prior to the closing of any sale
of Registrable Securities in certificated form; 
 (ix) in the case of a Shelf Registration, upon the occurrence of any event contemplated
by Section 3(a)(v)(5) hereof, use their commercially reasonable efforts to prepare and file with the SEC a supplement or post-effective amendment to such Shelf Registration Statement or the related Prospectus or any Free Writing Prospectus or
any document incorporated therein by reference or file any other required document so that, as thereafter delivered (or, to the extent permitted by law, made available) to purchasers of the Registrable Securities, such Prospectus or Free Writing
Prospectus, as the case may be, will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the 

  
 10 

 
circumstances under which they were made, not misleading; and the Whiting Parties shall notify the Holders of Registrable Securities to suspend use of the Prospectus or any Free Writing
Prospectus as promptly as practicable after the occurrence of such an event, and such Holders hereby agree to suspend use of the Prospectus or any Free Writing Prospectus until the Whiting Parties have amended or supplemented the Prospectus or the
Free Writing Prospectus, as the case may be, to correct such misstatement or omission; 
 (x) a reasonable time prior to the filing of any
Registration Statement, any Prospectus, any Free Writing Prospectus, any amendment to a Registration Statement or amendment or supplement to a Prospectus or a Free Writing Prospectus or of any document that is to be incorporated by reference into a
Registration Statement, a Prospectus or a Free Writing Prospectus after initial filing of a Registration Statement, provide copies of such document to the Initial Purchasers and their counsel (and, in the case of a Shelf Registration Statement, to
the Holders of Registrable Securities and their counsel) and make such of the representatives of the Whiting Parties as shall be reasonably requested by the Initial Purchasers or their counsel (and, in the case of a Shelf Registration Statement, the
Holders of Registrable Securities or their counsel) available for discussion of such document; and the Whiting Parties shall not, at any time after initial filing of a Registration Statement, use or file any Prospectus, any Free Writing Prospectus,
any amendment of or supplement to a Registration Statement or a Prospectus or a Free Writing Prospectus, or any document that is to be incorporated by reference into a Registration Statement, a Prospectus or a Free Writing Prospectus, of which the
Initial Purchasers and their counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Securities and their counsel) shall not have previously been advised and furnished a copy or to which the Initial Purchasers or
their counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Securities or their counsel) shall reasonably object; 

(xi) obtain a CUSIP number for all Exchange Securities or Registrable Securities, as the case may be, not later than the initial effective
date of a Registration Statement; 
 (xii) cause the Indenture to be qualified under the Trust Indenture Act in connection with the
registration of the Exchange Securities or Registrable Securities, as the case may be; cooperate with the Trustee and the Holders to effect such changes to the Indenture as may be required for the Indenture to be so qualified in accordance with the
terms of the Trust Indenture Act; and execute, and use their reasonable best efforts to cause the Trustee to execute, all documents as may be required to effect such changes and all other forms and documents required to be filed with the SEC to
enable the Indenture to be so qualified in a timely manner; 
 (xiii) in the case of a Shelf Registration, make available for inspection by
a representative (an “Inspector”) of the Holders of the Registrable Securities, any Underwriter participating in any disposition pursuant to such Shelf Registration Statement, any attorneys and accountants designated by a majority
of the Holders of Registrable Securities to be included in such Shelf Registration and any attorneys and accountants designated by such Underwriter, at reasonable times and in a reasonable manner, all pertinent financial and other records, documents
and properties of the Whiting Parties and their subsidiaries, and cause the respective officers, directors and employees of the Whiting Parties to supply all information reasonably requested by any such Inspector, Underwriter, attorney or accountant
in connection with a Shelf Registration Statement, in each case as is customary for “due diligence” examinations in the context of underwritten offerings; provided, that the foregoing inspection on behalf of the Holders shall be
conducted by one counsel designated by the Majority Holders, and provided, further, that each 

  
 11 

 
such party shall maintain in confidence and not to disclose to any other Person (other than disclosures to such Person’s affiliates and its and their respective employees who need to know
such information in connection with permitted uses thereof) any information or records reasonably designated by the Company as being confidential, until such time as (A) such information is or has become available to the public (either through
its inclusion in such Shelf Registration Statement or through a third party without an accompanying obligation of confidentiality owed by such Person to the Whiting Parties or otherwise except as a result of a breach of this or any other obligation
of confidentiality to the Whiting Parties known to such party), or (B) such Person shall be required so to disclose such information pursuant to a subpoena or order of any court or other governmental agency or body having jurisdiction over the
matter (subject to the requirements of such order, and only after such Person shall have given the Company prompt prior written notice of such requirement), (C) disclosure is required in connection with any suit, action or proceeding for the
purpose of defending itself, reducing its liability or protecting or exercising any of its rights, remedies or interests, or (D) such information is required to be set forth in such Shelf Registration Statement or the prospectus included
therein or in an amendment to such Shelf Registration Statement or an amendment or supplement to such prospectus in order that such Shelf Registration Statement, prospectus, amendment or supplement, as the case may be, complies with applicable
requirements of the federal securities laws and the rules and regulations of the SEC and does not contain an untrue statement of a material fact or omit to state therein a material fact required to be stated therein or necessary to make the
statements therein not misleading in light of the circumstances then existing; 
 (xiv) if reasonably requested by any Holder of Registrable
Securities covered by a Shelf Registration Statement, promptly include in a Prospectus supplement or post-effective amendment such information with respect to such Holder as such Holder reasonably requests to be included therein and make all
required filings of such Prospectus supplement or such post-effective amendment as soon as the Whiting Parties have received notification of the matters to be so included in such filing; 

(xv) in the case of a Shelf Registration, enter into such customary agreements and take all such other commercially reasonable actions in
connection therewith (including those requested by the Holders of a majority in principal amount of the Registrable Securities covered by the Shelf Registration Statement) in order to expedite or facilitate the disposition of such Registrable
Securities including, but not limited to, an Underwritten Offering and in such connection, (1) to the extent possible, make such representations and warranties to the Holders and any Underwriters of such Registrable Securities with respect to
the business of the Whiting Parties and their subsidiaries and the Registration Statement, Prospectus, any Free Writing Prospectus and documents incorporated by reference or deemed incorporated by reference, if any, in each case, in form, substance
and scope as are customarily made by issuers to underwriters in underwritten offerings and confirm the same if and when requested, (2) obtain opinions of counsel to the Whiting Parties (which counsel and opinions, in form, scope and substance,
shall be reasonably satisfactory to the Holders and such Underwriters and their respective counsel) addressed to each selling Holder (to the extent such Holder has advised the Company that such Holder may have a “due diligence” defense
under Section 11 of the Securities Act) and Underwriter of Registrable Securities, covering the matters customarily covered in opinions requested in underwritten offerings, (3) obtain “comfort” letters from the independent
registered public accounting firm of the Whiting Parties (and, if necessary, any other certified public 

  
 12 

 
accountant of any subsidiary of the Whiting Parties, or of any business acquired by the Whiting Parties for which financial statements and financial data are or are required to be included in the
Registration Statement) addressed to each selling Holder (to the extent permitted by applicable professional standards) and Underwriter of Registrable Securities, such letters to be in customary form and covering matters of the type customarily
covered in “comfort” letters in connection with underwritten offerings, including but not limited to financial information contained in any preliminary prospectus, Prospectus or Free Writing Prospectus and (4) deliver such documents
and certificates as may be reasonably requested by the Holders of a majority in principal amount of the Registrable Securities being sold or the Underwriters, and which are customarily delivered in underwritten offerings, to evidence the continued
validity of the representations and warranties of the Whiting Parties made pursuant to clause (1) above and to evidence compliance with any customary conditions contained in an underwriting agreement; 

(xvi) so long as any Registrable Securities remain outstanding, cause each Additional Guarantor upon the creation or acquisition by the
Company of such Additional Guarantor, to execute a joinder agreement in the form attached hereto as Annex A and to deliver such joinder agreement, together with an opinion of counsel as to the enforceability thereof against such entity, to the
Initial Purchasers no later than five Business Days following the execution thereof; 
 (xvii) in the case of a Shelf Registration
Statement, the Company may require each Holder of Registrable Securities to furnish to the Company such information regarding such Holder and the proposed disposition by such Holder of such Registrable Securities as the Whiting Parties may from time
to time reasonably request in writing; 
 (xviii) in the case of a Shelf Registration Statement, each Holder of Registrable Securities
covered in such Shelf Registration Statement agrees that, upon receipt of any notice from the Whiting Parties of the happening of any event of the kind described in Section 3(a)(v)(3) or 3(a)(v)(5) hereof, such Holder will forthwith discontinue
disposition of Registrable Securities pursuant to the Shelf Registration Statement until such Holder’s receipt of the copies of the supplemented or amended Prospectus and any Free Writing Prospectus contemplated by Section 3(a)(ix) hereof
and, if so directed by the Whiting Parties, such Holder will deliver to the Whiting Parties all copies in its possession, other than permanent file copies then in such Holder’s possession, of the Prospectus and any Free Writing Prospectus
covering such Registrable Securities that is current at the time of receipt of such notice; 
 (xix) if the Whiting Parties shall give any
notice to suspend the disposition of Registrable Securities pursuant to a Registration Statement, the Whiting Parties shall extend the period during which such Registration Statement shall be maintained effective pursuant to this Agreement by the
number of days during the period from and including the date of the giving of such notice to and including the date when the Holders of such Registrable Securities shall have received copies of the supplemented or amended Prospectus or any Free
Writing Prospectus necessary to resume such dispositions. The Whiting Parties may give any such notice only twice during any 365-day period and any such suspensions shall not exceed 30 days for each suspension and there shall not be more than two
suspensions in effect during any 365-day period; and 
 (xx) the Holders of Registrable Securities covered by a Shelf Registration Statement
who desire to do so may sell such Registrable Securities in an Underwritten Offering. In any such Underwritten Offering, the investment bank or investment banks and manager or managers (each 

  
 13 

 
an “Underwriter”) that will administer the offering will be selected by the Holders of a majority in principal amount of the Registrable Securities included in such offering;
provided that, such selections shall be subject to the approval of the Company, which approval shall not be unreasonably withheld. 
 4.
Participation of Broker-Dealers in Exchange Offer. (a) The Staff has taken the position that any broker-dealer that receives Exchange Securities for its own account in the Exchange Offer in exchange for Securities that were acquired by
such broker-dealer as a result of market-making or other trading activities (a “Participating Broker-Dealer”) may be deemed to be an “underwriter” within the meaning of the Securities Act and must deliver a prospectus
meeting the requirements of the Securities Act in connection with any resale of such Exchange Securities. 
 The Whiting Parties understand
that it is the Staff’s position that if the Prospectus contained in the Exchange Offer Registration Statement includes a plan of distribution containing a statement to the above effect and the means by which Participating Broker-Dealers may
resell the Exchange Securities, without naming the Participating Broker-Dealers or specifying the amount of Exchange Securities owned by them, such Prospectus may be delivered by Participating Broker-Dealers (or, to the extent permitted by law, made
available to purchasers) to satisfy their prospectus delivery obligation under the Securities Act in connection with resales of Exchange Securities for their own accounts, so long as the Prospectus otherwise meets the requirements of the Securities
Act. 
 (b) In light of the above, and notwithstanding the other provisions of this Agreement, the Whiting Parties agree to
amend or supplement the Prospectus contained in the Exchange Offer Registration Statement for a period of up to 180 days after the last Exchange Date (as such period may be extended pursuant to Section 3(xix) of this Agreement), in order to
expedite or facilitate the disposition of any Exchange Securities by Participating Broker-Dealers consistent with the positions of the Staff recited in Section 4(a) above. The Whiting Parties further agree that Participating Broker-Dealers
shall be authorized to deliver such Prospectus (or, to the extent permitted by law, make available) during such period in connection with the resales contemplated by this Section 4. 

(c) The Initial Purchasers shall have no liability to any of the Whiting Parties or any Holder with respect to any request that they may make
pursuant to Section 4(b) above. 
 5. Indemnification and Contribution. (a) Each of the Whiting Parties, jointly and
severally, agree to indemnify and hold harmless each Initial Purchaser and each Holder, their respective affiliates (as such term is defined in Rule 501(b) under the Securities Act), directors and officers and each Person, if any, who controls any
Initial Purchaser or any Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, legal fees and
other expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (1) any untrue statement or alleged untrue
statement of a material fact contained in any Registration Statement or any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein not misleading, or
(2) any untrue statement or alleged untrue statement of a material fact contained in any Prospectus, any Free Writing Prospectus used in violation of this Agreement or any “issuer information” (“Issuer Information”)
filed or required to be filed pursuant to Rule 433(d) under the Securities Act, or 

  
 14 

 
any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading,
in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information
relating to any Initial Purchaser or information relating to any Holder furnished to the Company in writing through J.P. Morgan or any selling Holder, respectively, expressly for use therein. In connection with any Underwritten Offering permitted by
Section 3, the Whiting Parties, jointly and severally, will also indemnify the Underwriters, their respective affiliates and each Person who controls such Persons (within the meaning of the Securities Act and the Exchange Act) to the same
extent as provided above with respect to the indemnification of the Holders, if requested in connection with any Registration Statement, any Prospectus, any Free Writing Prospectus or any Issuer Information. 

(b) Each Holder agrees, severally and not jointly, to indemnify and hold harmless the Whiting Parties, the Initial Purchasers and the other
selling Holders, the directors of the Whiting Parties, each officer of the Whiting Parties who signed the Registration Statement and each Person, if any, who controls the Whiting Parties, any Initial Purchaser and any other selling Holder within the
meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of,
or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Holder furnished to the Whiting Parties in writing by such Holder expressly for
use in any Registration Statement and any Prospectus and any Free Writing Prospectus. 
 (c) If any suit, action, proceeding (including any
governmental or regulatory investigation), claim or demand shall be brought or asserted against any Person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such Person (the
“Indemnified Person”) shall promptly notify the Person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall
not relieve it from any liability that it may have under this Section 5 except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further,
that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under this Section 5. If any such proceeding shall be brought or asserted against an Indemnified
Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person to represent the Indemnified Person and any others entitled to indemnification pursuant
to this Section 5 that the Indemnifying Person may designate in such proceeding and shall pay the reasonable fees and expenses of such proceeding and shall pay the reasonable fees and expenses of such counsel related to such proceeding, as
incurred. In any such proceeding, any Indemnified Person 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 Person unless (i) the Indemnifying Person and the
Indemnified Person shall have mutually agreed in writing to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person
shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the 

  
 15 

 
Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of
both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding 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 Indemnified Persons, and that all such fees and expenses shall be paid or reimbursed as they are incurred. Any such
separate firm (x) for any Initial Purchaser, its affiliates, agents, directors and officers and any control Persons of such Initial Purchaser shall be designated in writing by J.P. Morgan, (y) for any Holder, its directors and officers and
any control Persons of such Holder shall be designated in writing by the Majority Holders and (z) in all other cases shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding
effected without its written consent (which shall not be unreasonably withheld), but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against
any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for fees and expenses of
counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by the
Indemnifying Person of such request, (ii) such Indemnifying Person shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) the Indemnifying Person shall not have
reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person (which shall not be unreasonably withheld), effect any
settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (A) includes an
unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (B) does not include any statement as to
or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person. 
 (d) If the indemnification provided
for in paragraphs (a) and (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of
indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person 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 Whiting Parties from the offering of the Securities and the Exchange Securities, on the one hand, and by the Holders from receiving Securities or Exchange Securities registered under the Securities Act, on the other
hand, or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the
Whiting Parties on the one hand and the Holders on the other 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 fault of
the Whiting Parties on the one hand and the Holders on the other shall be determined by reference to, among 

  
 16 

 
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 Whiting Parties
or by the Holders and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 

(e) The Whiting Parties and the Holders agree that it would not be just and equitable if contribution pursuant to this Section 5 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 paragraph
(d) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any legal
or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 5, in no event shall a Holder be required to contribute any amount in excess of the amount by
which the total price at which the Securities or Exchange Securities sold by such Holder exceeds 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
Holders’ obligations to contribute pursuant to this Section 5 are several and not joint. 
 (f) The remedies provided for in this
Section 5 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity. 

(g) The indemnity and contribution provisions contained in this Section 5 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 the Initial Purchasers or any Holder or any Person controlling any Initial Purchaser or any Holder, or by or on behalf of the Whiting Parties or the
officers or directors of or any Person controlling any of the Whiting Parties, (iii) acceptance of any of the Exchange Securities and (iv) any sale of Registrable Securities pursuant to a Shelf Registration Statement. 

6. General. 
 (a) No
Inconsistent Agreements. The Whiting Parties represent, warrant and agree that (i) 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 any other
outstanding securities issued or guaranteed by any of the Whiting Parties under any other agreement and (ii) none of the Whiting Parties has entered into, or on or after the date of this Agreement will enter into, any agreement that is
inconsistent with the rights granted to the Holders of Registrable Securities in this Agreement or otherwise conflicts with the provisions hereof. 

(b) Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified
or supplemented, and waivers or consents to departures from the provisions hereof may not be given unless the Whiting Parties have obtained the written consent of Holders of at least a majority in aggregate principal amount of the outstanding
Registrable Securities affected by such amendment, modification, supplement, waiver or consent; provided that no amendment, modification, supplement, waiver or consent to any departure from the provisions of Section 5 hereof shall be
effective as against any Holder of Registrable Securities unless consented to in writing by such Holder. Any amendments, modifications, supplements, waivers or consents pursuant to this Section 6(b) shall be by a writing executed by each of the
parties hereto. 

  
 17 

 (c) Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered first-class mail, telex, telecopier, or any courier guaranteeing overnight delivery (i) if to a Holder, at the most current address given by such Holder to the Company by
means of a notice given in accordance with the provisions of this Section 6(c), which address initially is, with respect to the Initial Purchasers, the address set forth in the Purchase Agreement; (ii) if to the Whiting Parties, initially at
the Company’s address set forth in the Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c); and (iii) to such other persons at their respective
addresses as provided in the Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c). 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 is acknowledged, if telecopied; 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. 

(d) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the successors, assigns and transferees 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 Registrable
Securities in violation of the terms of the Purchase Agreement or the Indenture. If any transferee of any Holder shall acquire Registrable Securities in any manner, whether by operation of law or otherwise, such Registrable Securities shall be held
subject to all the terms of this Agreement, and by taking and holding such Registrable 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 and such Person
shall be entitled to receive the benefits hereof. The Initial Purchasers (in their capacity as Initial Purchasers) shall have no liability or obligation to the Whiting Parties with respect to any failure by a Holder to comply with, or any breach by
any Holder of, any of the obligations of such Holder under this Agreement. 
 (e) Third Party Beneficiaries. Each Holder shall be a
third party beneficiary to the agreements made hereunder between the Whiting Parties, 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 it deems such
enforcement necessary or advisable to protect its rights or the rights of other Holders hereunder. 
 (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, are not a part of this Agreement and shall not
limit or otherwise affect the meaning hereof. 
 (h) Governing Law. This Agreement and any claim, controversy or dispute arising
under or related to this Agreement shall be governed by and construed in accordance with the laws of the State of New York. 

  
 18 

 (i) Entire Agreement; Severability. This Agreement contains the entire agreement between
the parties relating to the subject matter hereof and supersedes all oral statements and prior writings with respect thereto. If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent jurisdiction to
be invalid, void or unenforceable or against public policy, the remainder of the terms, provisions, covenants and restrictions contained herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated. The
Whiting Parties and the Initial Purchasers shall endeavor in good faith negotiations to replace the invalid, void or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid, void
or unenforceable provisions. 
 [Signature pages follow] 

  
 19 

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

			
	WHITING PETROLEUM CORPORATION
		
	By		 /s/ James J. Volker

	Name:		James J. Volker
	Title:		Chairman, President and Chief Executive Officer
	
	INITIAL GUARANTORS:
	
	WHITING OIL AND GAS CORPORATION
		
	By:		 /s/ James J. Volker

	Name: 		James J. Volker
	Title:		Chairman, President and Chief Executive Officer
	
	WHITING US HOLDING COMPANY
		
	By:		 /s/ James J. Volker

	Name:		James J. Volker
	Title:		Chairman, President and Chief Executive Officer
	
	WHITING CANADIAN HOLDING COMPANY ULC
		
	By:		 /s/ James J. Volker

	Name:		James J. Volker
	Title:		Chairman, President and Chief Executive Officer
	
	WHITING RESOURCES CORPORATION
		
	By:		 /s/ James J. Volker

	Name:		James J. Volker
	Title:		Chairman, President and Chief Executive Officer

 [Signature Page to Registration Rights Agreement] 

  
 20 

			
	CONFIRMED AND ACCEPTED,
	as of the date first above written:
	
	J.P. MORGAN SECURITIES LLC
		
			 For itself and on behalf of the
 several
Initial Purchasers listed
 in Schedule A to the Purchase Agreement

		
	By:		 /s/

			Authorized Signatory

 [Signature Page to Registration Rights Agreement] 

  
 21 

 Annex A 

Form of Joinder Agreement 

The undersigned hereby absolutely, unconditionally and irrevocably agrees as a Guarantor (as defined in the Registration Rights Agreement,
dated as of March 27, 2015 by and among Whiting Petroleum Corporation, a Delaware company, the Guarantors party thereto, and J.P. Morgan Securities LLC, on behalf of itself and the other Initial Purchasers) to be bound by the terms and
provisions of such Registration Rights Agreement. 
 IN WITNESS WHEREOF, the undersigned has executed this agreement as of
                , 20    . 

[NAME] 
  

			
	By:		  

	Name:		
	Title:

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