Document:

Indenture

 Exhibit 4.1 
 EXECUTION VERSION 
  

 
  

 
 ROUGH RIDER
ESCROW, INC. 
 9.875% SENIOR NOTES DUE 2018 

 
  

INDENTURE 
 Dated
as of November 5, 2012 
  
  

The Bank of New York Mellon Trust Company, N.A. 
 Trustee 
  

 
  

 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	
	ARTICLE 1	  
	 DEFINITIONS AND INCORPORATION

BY REFERENCE
	   

  

			
	Section 1.01	 	 Definitions.
	  	 	1	  
	Section 1.02	 	 Other Definitions.
	  	 	21	  
	Section 1.03	 	 Rules of Construction.
	  	 	22	  
	
	ARTICLE 2	  
	THE NOTES	  
			
	Section 2.01	 	 Form and Dating.
	  	 	23	  
	Section 2.02	 	 Execution and Authentication.
	  	 	24	  
	Section 2.03	 	 Registrar and Paying Agent.
	  	 	24	  
	Section 2.04	 	 Paying Agent to Hold Money in Trust.
	  	 	25	  
	Section 2.05	 	 Holder Lists.
	  	 	25	  
	Section 2.06	 	 Transfer and Exchange.
	  	 	25	  
	Section 2.07	 	 Replacement Notes.
	  	 	35	  
	Section 2.08	 	 Outstanding Notes.
	  	 	36	  
	Section 2.09	 	 Treasury Notes.
	  	 	36	  
	Section 2.10	 	 Temporary Notes.
	  	 	36	  
	Section 2.11	 	 Cancellation.
	  	 	36	  
	Section 2.12	 	 Defaulted Interest.
	  	 	37	  
	Section 2.13	 	 CUSIP Numbers.
	  	 	37	  
	
	ARTICLE 3	  
	REDEMPTION AND PREPAYMENT	  
			
	Section 3.01	 	 Notices to Trustee.
	  	 	37	  
	Section 3.02	 	 Selection of Notes to Be Redeemed or Purchased.
	  	 	37	  
	Section 3.03	 	 Notice of Redemption.
	  	 	38	  
	Section 3.04	 	 Effect of Notice of Redemption.
	  	 	39	  
	Section 3.05	 	 Deposit of Redemption or Purchase Price.
	  	 	39	  
	Section 3.06	 	 Notes Redeemed or Purchased in Part.
	  	 	39	  
	Section 3.07	 	 Optional Redemption.
	  	 	39	  
	Section 3.08	 	 Escrow of Proceeds; Mandatory Redemption.
	  	 	40	  
	Section 3.09	 	 Offer to Purchase by Application of Excess Proceeds.
	  	 	41	  
	
	ARTICLE 4	  
	COVENANTS	  
			
	Section 4.01	 	 Payment of Notes.
	  	 	43	  
	Section 4.02	 	 Maintenance of Office or Agency.
	  	 	43	  
	Section 4.03	 	 Reports.
	  	 	44	  
	Section 4.04	 	 Compliance Certificate.
	  	 	45	  
	Section 4.05	 	 Taxes.
	  	 	46	  
	Section 4.06	 	 Stay, Extension and Usury Laws.
	  	 	46	  
	Section 4.07	 	 Restricted Payments.
	  	 	46	  
	Section 4.08	 	 Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries.
	  	 	50	  
	Section 4.09	 	 Incurrence of Indebtedness and Issuance of Preferred Stock.
	  	 	51	  
	Section 4.10	 	 Asset Sales.
	  	 	55	  
	Section 4.11	 	 Transactions with Affiliates.
	  	 	56	  
	Section 4.12	 	 Liens.
	  	 	58	  

  
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 TABLE OF CONTENTS (cont.) 
  

							
	 	 	 	  	Page	 
			
	Section 4.13	 	 Business Activities.
	  	 	58	  
	Section 4.14	 	 Corporate Existence.
	  	 	58	  
	Section 4.15	 	 Offer to Repurchase Upon Change of Control.
	  	 	59	  
	Section 4.16	 	 Payments for Consent.
	  	 	60	  
	Section 4.17	 	 Designation of Restricted and Unrestricted Subsidiaries.
	  	 	60	  
	
	ARTICLE 5	  
	SUCCESSORS	  
			
	Section 5.01	 	 Merger, Consolidation or Sale of Assets.
	  	 	61	  
	Section 5.02	 	 Successor Corporation Substituted.
	  	 	62	  
	
	ARTICLE 6	  
	DEFAULTS AND REMEDIES	  
			
	Section 6.01	 	 Events of Default.
	  	 	62	  
	Section 6.02	 	 Acceleration.
	  	 	64	  
	Section 6.03	 	 Other Remedies.
	  	 	64	  
	Section 6.04	 	 Waiver of Past Defaults.
	  	 	64	  
	Section 6.05	 	 Control by Majority.
	  	 	65	  
	Section 6.06	 	 Limitation on Suits.
	  	 	65	  
	Section 6.07	 	 Rights of Holders of Notes to Receive Payment.
	  	 	65	  
	Section 6.08	 	 Collection Suit by Trustee.
	  	 	65	  
	Section 6.09	 	 Trustee May File Proofs of Claim.
	  	 	66	  
	Section 6.10	 	 Priorities.
	  	 	66	  
	Section 6.11	 	 Undertaking for Costs.
	  	 	66	  
	
	ARTICLE 7	  
	TRUSTEE	  
			
	Section 7.01	 	 Duties of Trustee.
	  	 	67	  
	Section 7.02	 	 Rights of Trustee.
	  	 	68	  
	Section 7.03	 	 Individual Rights of Trustee.
	  	 	69	  
	Section 7.04	 	 Trustee’s Disclaimer.
	  	 	69	  
	Section 7.05	 	 Notice of Defaults.
	  	 	69	  
	Section 7.06	 	 Compensation and Indemnity.
	  	 	69	  
	Section 7.07	 	 Replacement of Trustee.
	  	 	70	  
	Section 7.08	 	 Successor Trustee by Merger, etc.
	  	 	71	  
	Section 7.09	 	 Eligibility; Disqualification.
	  	 	71	  
	
	ARTICLE 8	  
	LEGAL DEFEASANCE AND COVENANT DEFEASANCE	  
			
	Section 8.01	 	 Option to Effect Legal Defeasance or Covenant Defeasance.
	  	 	71	  
	Section 8.02	 	 Legal Defeasance and Discharge.
	  	 	71	  
	Section 8.03	 	 Covenant Defeasance.
	  	 	72	  
	Section 8.04	 	 Conditions to Legal or Covenant Defeasance.
	  	 	72	  
	Section 8.05	 	 Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions.
	  	 	73	  
	Section 8.06	 	 Repayment to Company.
	  	 	74	  
	Section 8.07	 	 Reinstatement.
	  	 	74	  

  
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 TABLE OF CONTENTS (cont.) 
  

							
	 	 	 	  	Page	 
	
	ARTICLE 9	  
	AMENDMENT, SUPPLEMENT AND WAIVER	  
			
	Section 9.01	 	 Without Consent of Holders of Notes.
	  	 	74	  
	Section 9.02	 	 With Consent of Holders of Notes.
	  	 	75	  
	Section 9.03	 	 Revocation and Effect of Consents.
	  	 	76	  
	Section 9.04	 	 Notation on or Exchange of Notes.
	  	 	76	  
	Section 9.05	 	 Trustee to Sign Amendments, etc.
	  	 	77	  
	
	ARTICLE 10	  
	SATISFACTION AND DISCHARGE	  
			
	Section 10.01	 	 Satisfaction and Discharge.
	  	 	77	  
	Section 10.02	 	 Application of Trust Money.
	  	 	78	  
	
	ARTICLE 11	  
	MISCELLANEOUS	  
			
	Section 11.01	 	 Notices.
	  	 	78	  
	Section 11.02	 	 Certificate and Opinion as to Conditions Precedent.
	  	 	79	  
	Section 11.03	 	 Statements Required in Certificate or Opinion.
	  	 	80	  
	Section 11.04	 	 Rules by Trustee and Agents.
	  	 	80	  
	Section 11.05	 	 No Personal Liability of Directors, Officers, Employees and Stockholders.
	  	 	80	  
	Section 11.06	 	 Governing Law.
	  	 	80	  
	Section 11.07	 	 No Adverse Interpretation of Other Agreements.
	  	 	81	  
	Section 11.08	 	 Successors.
	  	 	81	  
	Section 11.09	 	 Severability.
	  	 	81	  
	Section 11.10	 	 Counterpart Originals.
	  	 	81	  
	Section 11.11	 	 Table of Contents, Headings, etc.
	  	 	81	  
	Section 11.12	 	 Waiver of Jury Trial.
	  	 	81	  
	Section 11.13	 	 Force Majeure.
	  	 	81	  

 EXHIBITS 
  

			
	Exhibit A1	  	FORM OF NOTE
	Exhibit A2	  	FORM OF REGULATION S TEMPORARY GLOBAL NOTE
	Exhibit B	  	FORM OF CERTIFICATE OF TRANSFER
	Exhibit C	  	FORM OF CERTIFICATE OF EXCHANGE
	Exhibit D	  	FORM OF CERTIFICATE OF ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR

  
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 INDENTURE dated as of November 5, 2012 by and between Rough Rider Escrow, Inc., a
Delaware corporation, and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee. 
 The
Company and the Trustee agree as follows for the benefit of each other and for the equal and ratable benefit of the Holders (as defined) of the 9.875% Senior Notes due 2018 (the “Notes”): 

ARTICLE 1 

DEFINITIONS AND INCORPORATION 
 BY REFERENCE 
 Section 1.01 Definitions. 

“144A Global Note” means a Global Note substantially in the form of Exhibit A1 hereto bearing the Global Note Legend and
the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on Rule 144A.

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

(1) Indebtedness of any other Person existing at the time such other Person is merged with or into or became a Restricted
Subsidiary of such specified Person, whether or not such Indebtedness is incurred in connection with, or in contemplation of, such other Person merging with or into, or becoming a Restricted Subsidiary of, such specified Person; and 

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

Acquired Debt shall be deemed to be incurred on the date the acquired Person becomes or merges with or into a Restricted Subsidiary.

 “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; provided that beneficial ownership of 20% or more of the Voting Stock of a Person (or 10% if such Person
has a class of Capital Stock registered pursuant to Section 12(b) or 12(g) of the Exchange Act and is subject to the reporting requirements of Section 13(a) of the Exchange Act) will be deemed to be control. For purposes of this
definition, the terms “controlling,” “controlled by” and “under common control with” have correlative meanings. 
 “Agent” means any Registrar, co-registrar, Paying Agent or additional paying agent. 
 “Applicable Premium” means, with respect to any Note on any redemption date, the greater of: 
 (1) 1.0% of the principal amount of the Note; or 
 (2) the excess
of: (a) the present value at such redemption date of (i) the redemption price of the Note at April 15, 2015 (such redemption price being set forth in the table appearing in Section 3.07 hereof) plus (ii) all required
interest payments due on the Note through April 15, 2015 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 50 basis points; over
(b) the principal amount of the Note. 

  
 1 

 “Applicable Procedures” means, with respect to any transfer or exchange of
or for beneficial interests in any Global Note, the rules and procedures of the Depositary, Euroclear and Clearstream that apply to such transfer or exchange. 
 “Asset Sale” means: 
 (1) the sale, lease,
conveyance or other disposition of any assets or rights by the Company or any of its Restricted Subsidiaries; provided that the sale, lease conveyance or other disposition of all or substantially all of the assets of the Company and its
Restricted Subsidiaries taken as a whole will be governed by Sections 4.15 and 5.01 hereof and not by Section 4.10 hereof; and 
 (2) the issuance of Equity Interests by any of the Company’s Restricted Subsidiaries or the sale by the Company or any of its Restricted Subsidiaries of Equity Interests in any of the Company’s
Subsidiaries. 
 Notwithstanding the preceding, none of the following items will be deemed to be an Asset Sale: 

(1) any single transaction or series of related transactions that involves assets having a Fair Market Value of less than
$5.0 million; 
 (2) a transfer of assets between or among the Company and its Restricted Subsidiaries;

 (3) an issuance of Equity Interests by a Restricted Subsidiary of the Company to the Company or to a
Restricted Subsidiary of the Company; 
 (4) the sale, lease or other transfer of products, services or accounts
receivable in the ordinary course of business, the sale, lease or other transfer of trucks and related equipment in the ordinary course of business and any sale or other disposition of used, redundant, damaged, worn-out or obsolete assets in the
ordinary course of business (including the 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 the conduct of the business of the
Company and its Restricted Subsidiaries taken as whole); 
 (5) licenses and sublicenses by the Company or any of
its Restricted Subsidiaries of software or intellectual property in the ordinary course of business; 
 (6) any
surrender or waiver of contract rights or settlement, release, recovery on or surrender of contract, tort or other claims in the ordinary course of business; 
 (7) the granting of Liens not prohibited by Section 4.12 hereof; 
 (8) the sale or other disposition of cash or Cash Equivalents; 

(9) any release of intangible claims or rights in connection with the loss or settlement of a bona fide lawsuit, dispute
or other controversy; 

  
 2 

 (10) leases or subleases to third persons not interfering in any material
respect with the business of the Company or any of its Restricted Subsidiaries; 
 (11) a Restricted Payment that
does not violate Section 4.07 hereof or a Permitted Investment; and 
 (12) for the avoidance of doubt, a
withdrawal of Escrowed Funds from the Escrow Account in accordance with the Escrow Agreement. 
 “Bankruptcy
Law” means Title 11, U.S. Code 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 after the passage of time. The terms “Beneficially Owns” and “Beneficially Owned” have a corresponding meaning. 
 “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 managing member or members or any controlling committee of managing members or the Board of Directors appointed by the members or managing members
thereof; and 
 (4) with respect to any other Person, the board or committee of such Person serving a similar
function. 
 “Business Day” means any day other than a Legal Holiday. 

“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 prepared in accordance with GAAP, and the Stated Maturity thereof shall be the date of the last payment of rent or any other amount due under such lease prior
to the first date upon which such lease may be prepaid by the lessee without payment of a penalty. 
 “Capital
Stock” means: 
 (1) in the case of a corporation, corporate stock; 

(2) in the case of an association or business entity, any and all shares, interests, participations, rights or other
equivalents (however designated) of corporate stock; 
 (3) in the case of a partnership or limited liability
company, partnership interests (whether general or limited) or membership interests; and 

  
 3 

 (4) any other interest or participation that confers on a Person the right
to receive a share of the profits and losses of, or distributions of assets of, the issuing Person, 
 but excluding from all of
the foregoing any debt securities convertible into Capital Stock, whether or not such debt securities include any right of participation with Capital Stock. 
 “Cash Equivalents” means: 
 (1) United States
dollars and the lawful currency of any other country where the Company owns or operates property or assets; 

(2) securities issued or directly and fully guaranteed or insured by the government of the United States or any member
state of the European Union or any agency or instrumentality thereof (provided that the full faith and credit of the United States or such member state of the European Union, as applicable, is pledged in support of those securities) having
maturities of not more than 12 months from the date of acquisition; 
 (3) certificates of deposit and time
deposit accounts including 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 having capital and surplus in excess of $100.0 million and a Thomson Bank Watch Rating of “B” or better; 

(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 12 months after the date of acquisition; and 

(6) investment or money market funds at least 95% of the assets of which constitute Cash Equivalents of the kinds
described in clauses (1) through (5) of this definition. 
 “Change of Control” 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 of the Company and its Subsidiaries taken as a whole to any Person (including any “person”
(as that term is used in Section 13(d)(3) of the Exchange Act)); 
 (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 (including any “person” (as defined above)) 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; 
 (4) the Company consolidates with, or merges with or
into, any Person, or any Person consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Company or such other Person is

  
 4 

 
converted into or exchanged for cash, securities or other property, other than any such transaction where the Voting Stock of the Company outstanding immediately prior to such transaction
constitutes or is converted into or exchanged for a majority of the outstanding shares of the Voting Stock of such surviving or transferee Person (immediately after giving effect to such transaction); or 

(5) the first day on which a majority of the members of the Board of Directors of the Company are not Continuing
Directors, 
 provided, however, that, for the avoidance of doubt, a “Change of Control” shall not occur solely as a
result of the merger of Rough Rider with and into Heckmann that is consummated in accordance with Section 5.01 hereof or the withdrawal of Escrowed Funds from the Escrow Account in accordance with the Escrow Agreement. 

“Clearstream” means Clearstream Banking, S.A. 
 “Company” means Rough Rider and any and all successors thereto, including, for the avoidance of doubt, Heckmann upon completion of the Merger and the merger of Rough Rider
with and into Heckmann in accordance with Section 5.01 hereof. 
 “Consolidated EBITDA” 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 or non-recurring charges, expenses or losses, including in connection with an Asset Sale, plus any net loss realized by such Person or any of its Restricted
Subsidiaries in connection with an Asset Sale, to the extent such charges, expenses or losses were deducted in computing such Consolidated Net Income; plus 

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

(4) the Transaction Costs for such period, to the extent that such Transaction Costs were deducted in computing such
Consolidated Net Income; plus  
 (5) any foreign currency translation losses (including losses related to
currency remeasurements of Indebtedness), and losses in connection with any Hedging Obligation to the extent that such losses were taken into account in computing such Consolidated Net Income; plus 

(6) depreciation, amortization (including amortization of intangibles but excluding amortization of prepaid cash expenses
that were paid in a prior period) and other non-cash charges and expenses (excluding any such non-cash charge or expense to the extent that it represents an accrual of or reserve for cash charges or expenses in any future period or amortization of a
prepaid cash charge or expense that was paid in a prior period) of such Person and its Restricted Subsidiaries for such period, including (a) charges, provisions or adjustments for stock-based awards, and non-cash compensation expense including
non-cash charges arising from stock options, restricted stock or other equity incentive programs, and (b) any impairment 

  
 5 

 
charges or asset write-offs or write-downs related to intangible assets (including goodwill), lease terminations, and long-lived assets pursuant to GAAP, to the extent that such depreciation,
amortization and other non-cash charges or expenses were deducted in computing such Consolidated Net Income; plus 
 (7) legal costs related to shareholder and securities litigation arising from the acquisition of China Water & Drinks Inc., in an aggregate amount not to exceed $2.0 million in any fiscal year;
plus 
 (8) non-recurring charges and expenses which have been reimbursed in cash by a third party, to the
extent such charges and expenses were deducted in computing such Consolidated Net Income; plus 
 (9)
adjustments of the type included in the presentation of Adjusted EBITDA in the Offering Circular; plus 

(10) costs (including legal costs) associated with moving any Subsidiary to discontinued operations or the disposition
thereof, to the extent such charges and expenses were deducted in computing such Consolidated Net Income; minus 
 (11) any foreign currency translation gains (including gains related to currency remeasurements of Indebtedness) and gains in connection with any Hedging Obligation of such Person and its Restricted
Subsidiaries for such period, to the extent that such gains were taken into account in computing such Consolidated Net Income; minus 
 (12) non-cash items increasing such Consolidated Net Income for such period (including reversal of earn-out liabilities that, when incurred or modified, reduced Consolidated Net Income), other than the
accrual of revenue in the ordinary course of business; minus 
 (13) an amount equal to any extraordinary
or non-recurring gains, including in connection with an Asset Sale, to the extent such gains were included in computing such Consolidated Net Income; minus 

(14) non-cash gains associated with any write-up of goodwill pursuant to ASC 350, 

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

“Consolidated Net Income” means, with respect to any specified Person for any period, the aggregate of the net income
(loss) of such Person and its Restricted Subsidiaries for such period, on a consolidated basis (excluding the net income (loss) of any Unrestricted Subsidiary of such Person), determined in accordance with GAAP and without any reduction in respect
of preferred stock dividends; provided that: 
 (1) all extraordinary gains or losses and all gains (or
losses) realized in connection with any Asset Sale or the disposition of securities or the early extinguishment of Indebtedness, together with any related provision for taxes on any such gain, will be excluded; 

(2) the net income or loss of any Person that is not a Restricted Subsidiary or that is accounted for by the equity method
of accounting will be excluded, and the amount of dividends or similar distributions paid in cash to the specified Person or a Restricted Subsidiary of the Person from any Person that is not a Restricted Subsidiary or that is accounted for by the
equity method of accounting will be included; 

  
 6 

 (3) for purposes of Section 4.07 hereof only, the net income (but not
loss) 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; 
 (4) the cumulative effect of a change in accounting principles will be
excluded; 
 (5) non-cash gains and losses attributable to movement in the mark-to-market valuation of Hedging
Obligations pursuant to Financial Accounting Standards Board Statement No. 133 will be excluded; and 
 (6)
goodwill and asset impairment charges pursuant to SFAS 142 and 144 will be excluded. 
 “Consolidated Secured Leverage
Ratio” means, as of any date of determination, the ratio of (i) total consolidated secured Indebtedness of the Company and its Restricted Subsidiaries as of such date (excluding Indebtedness incurred pursuant to Section 4.09(b)(4)
hereof), after giving effect to all Incurrences and repayments of Indebtedness on or about such date, to (ii) Consolidated EBITDA of the Company for the most recent four consecutive fiscal quarters for which internal financial statements are
available ending prior to such date, with such pro forma and other adjustments as are appropriate and consistent with the pro forma and other adjustment provisions set forth in the definition of Fixed Charge Coverage Ratio. 

“continuing” means, with respect to any Default or Event of Default, that such Default or Event of Default has not been
cured or waived. 
 “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 date of this Indenture; or

 (2) was nominated for election or elected to such Board of Directors with the approval of a majority of the
Continuing Directors who were members of such Board of Directors at the time of such nomination or election. 

“Corporate Trust Office of the Trustee” means the address of the Trustee specified in Section 11.01 hereof or such
other address as to which the Trustee may give notice to the Company. 
 “Credit Agreement” means that certain
Credit Agreement, dated as of April 10, 2012, by and among the Company and Wells Fargo Bank, N.A., as administrative agent and a lender, and the other lenders from time to time party thereto, including any related notes, Guarantees, collateral
documents, instruments and agreements executed in connection therewith, and, in each case, as amended, restated, modified, renewed, refunded, replaced in any manner (whether upon or after termination or otherwise) or refinanced (including by means
of sales of debt securities) in whole or in part from time to time. 

  
 7 

 “Credit Facilities” means one or more debt facilities (including, without
limitation, the Credit Agreement) or commercial paper facilities, in each case, with banks or other institutional lenders 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 such lenders against such receivables) or letters of credit, in each case, as amended, restated, modified, renewed, refunded, replaced in any manner (whether upon or after termination or
otherwise) or refinanced (including by means of sales of debt securities to institutional investors) in whole or in part from time to time. 
 “Custodian” means the Trustee, as custodian with respect to the Notes in global form, or any successor entity thereto. 

“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. 
 “Definitive Note” means a certificated Note registered in the name of the Holder thereof and issued
in accordance with Section 2.06 hereof, substantially in the form of Exhibit A1 hereto except that such Note shall not bear the Global Note Legend and shall not have the “Schedule of Exchanges of Interests in the Global Note” attached
thereto. 
 “Depositary” means, with respect to the Notes issuable or issued in whole or in part in global
form, the Person specified in Section 2.03 hereof as the Depositary with respect to the Notes and any and all successors thereto appointed as depositary hereunder and having become such pursuant to the applicable provision of this Indenture.

 “Disqualified Stock” means any Capital Stock that, by its terms (or by the terms of any security into which
it is convertible, or for which it is exchangeable, in each case, at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, or
redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the date that is 91 days after the date on which the Notes mature. Notwithstanding the preceding sentence, any Capital Stock that would constitute
Disqualified Stock solely because the holders of the Capital Stock have the right to require the Company to repurchase such Capital Stock upon the occurrence of a change of control or an asset sale will not constitute Disqualified Stock if the terms
of such Capital Stock provide that the Company may not repurchase or redeem any such Capital Stock pursuant to such provisions unless such repurchase or redemption complies with Section 4.07 hereof. The amount of Disqualified Stock deemed to be
outstanding at any time for purposes of this Indenture will be the maximum amount that the Company and its Restricted Subsidiaries may become obligated to pay upon the maturity of, or pursuant to any mandatory redemption provisions of, such
Disqualified Stock, exclusive of accrued dividends. 
 “Escrow Agent” means The Bank of New York Mellon Trust
Company, N.A., as escrow agent under the Escrow Agreement. 
 “Escrow Agreement” means the Escrow Agreement,
dated as of the date of this Indenture, by and among the Company, the Trustee and the Escrow Agent. 
 “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). 

“Equity Offering” means a public sale either (1) of Equity Interests of the Company by the Company (other than
Disqualified Stock and other than to a Subsidiary of the Company) or (2) of Equity Interests of a direct or indirect parent entity of the Company (other than to the Company or a Subsidiary of the Company) to the extent that the net proceeds
therefrom are contributed to the common equity capital of the Company. 

  
 8 

 “Euroclear” means Euroclear Bank, S.A./N.V., as operator of the Euroclear
system. 
 “Exchange Act” means the United States Securities Exchange Act of 1934, as amended. 

“Existing Heckmann Notes” means the 9.875% Senior Notes due 2018 originally issued under the Stage II Indenture.

 “Existing Indebtedness” means all Indebtedness of the Company and its Subsidiaries (other than Indebtedness
under the Credit Agreement) in existence on the date of this Indenture, including earn-out liabilities constituting Indebtedness, until such amounts are repaid. 
 “Fair Market Value” means the value that would be paid by a willing buyer to an unaffiliated willing seller in a transaction not involving distress or necessity of either party,
determined in good faith by the Board of Directors of the Company (unless otherwise provided in this Indenture). 

“Fixed Charge Coverage Ratio” means with respect to any specified Person for any period, the ratio of the Consolidated
EBITDA of such Person for such period to the Fixed Charges of such Person for such period. In the event that the specified Person or any of its Restricted Subsidiaries incurs, assumes, guarantees, repays, repurchases, redeems, defeases or otherwise
discharges any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems preferred stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated and on or prior
to the date on which the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Calculation Date”), then the Fixed Charge Coverage Ratio will be calculated giving pro forma effect (in accordance with
Regulation S-X under the Securities Act or in respect of Pro Forma Cost Savings) to such incurrence, assumption, Guarantee, repayment, repurchase, redemption, defeasance or other discharge of Indebtedness, or such issuance, repurchase or redemption
of preferred stock, and the use of the proceeds therefrom, as if the same had occurred at the beginning of the applicable four-quarter reference period. 
 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, or any Person or any of its Restricted Subsidiaries
acquired by the specified Person or any of its Restricted Subsidiaries, and including all related financing transactions and including increases in ownership of Restricted Subsidiaries, during the four-quarter reference period or subsequent to such
reference period and on or prior to the Calculation Date, or that are to be made on the Calculation Date, will be given pro forma effect (in accordance with Regulation S-X under the Securities Act or in respect of Pro Forma Cost Savings) as if they
had occurred on the first day of the four-quarter reference period; 
 (2) the Consolidated EBITDA attributable
to discontinued operations, as determined in accordance with GAAP, and operations or businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded; 

(3) the Fixed Charges attributable to discontinued operations, as determined in accordance with GAAP, and operations or
businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded, but only to the extent that the obligations giving rise to such Fixed Charges will not be obligations of the specified Person or any of its
Restricted Subsidiaries following the Calculation Date; 

  
 9 

 (4) any Person that is a Restricted Subsidiary on the Calculation Date will
be deemed to have been a Restricted Subsidiary at all times during such four-quarter period; 
 (5) any Person
that is not a Restricted Subsidiary on the Calculation Date will be deemed not to have been a Restricted Subsidiary at any time during such four-quarter period; and 

(6) if any Indebtedness bears a floating rate of interest, the interest expense on such Indebtedness will be calculated as
if the rate in effect on the Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligation applicable to such Indebtedness if such Hedging Obligation has a remaining term as at the Calculation Date
in excess of 12 months). 
 “Fixed Charges” means, with respect to any specified Person for any period, the
sum, without duplication, of: 
 (1) the consolidated interest expense of such Person and its Restricted
Subsidiaries for such period, whether paid or accrued, including, without limitation, amortization of 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, 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 in respect of interest rates, but excluding amortization and write-offs of debt issuance costs; plus 
 (2) the consolidated interest expense of such Person and its Restricted Subsidiaries that was capitalized during such period; plus 

(3) any interest paid or accrued during the period 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. 

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting
Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment
of the accounting profession, which were in effect on the date of the Stage II Indenture. 
 “Global Note
Legend” means the legend set forth in Section 2.06(f)(2) hereof, which is required to be placed on all Global Notes issued under this Indenture. 
 “Global Notes” means, individually and collectively, each of the Restricted Global Notes and the Unrestricted Global Notes deposited with or on behalf of and registered in the name of the
Depository or 

  
 10 

 
its nominee, substantially in the form of Exhibit A1 hereto and that bears the Global Note Legend and that has the “Schedule of Exchanges of Interests in the Global Note” attached
thereto, issued in accordance with Section 2.01, 2.06(b)(3), 2.06(b)(4) or 2.06(d)(2) hereof. 
 “Government
Securities” means direct obligations of, or obligations guaranteed by, the United States of America, and the payment for which the United States pledges its full faith and credit. 

“Guarantee” means a guarantee other than by endorsement of negotiable instruments for collection in the ordinary course
of business, direct or indirect, in any manner including, without limitation, by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof, of all or any part of any Indebtedness (whether arising by virtue
of partnership arrangements, or by agreements to keep-well, to purchase assets, goods, securities or services, to take or pay or to maintain financial statement conditions or otherwise). 

“Heckmann” means Heckmann Corporation and any and all successors thereto. 

“Hedging Obligations” means, with respect to any specified Person, the obligations of such Person under: 

(1) interest rate swap agreements (whether from fixed to floating or from floating to fixed), interest rate cap agreements
and interest rate collar agreements; 
 (2) other agreements or arrangements designed to manage interest rates or
interest rate risk; and 
 (3) other agreements or arrangements designed to protect such Person against
fluctuations in currency exchange rates or commodity prices. 
 “Holder” means a Person in whose name a Note is
registered. 
 “IAI Global Note” means a Global Note substantially in the form of Exhibit A1 hereto bearing the
Global Note Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold to
Institutional Accredited Investors.  
 “Indebtedness” means, with respect to any specified Person, any
indebtedness of such Person (excluding accrued expenses and trade payables), 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 banker’s acceptances;

 (4) representing Capital Lease Obligations; 

(5) representing the balance deferred and unpaid of the purchase price of any property or services due more than six
months after such property is acquired or such services are completed; or 
 (6) representing any Hedging
Obligations, 

  
 11 

 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. Indebtedness shall be calculated without giving effect to the
effects of Statement of Financial Accounting Standards No. 133 and related interpretations to the extent such effects would otherwise increase or decrease an amount of Indebtedness for any purpose under this Indenture as a result of accounting
for any embedded derivatives created by the terms of such Indebtedness. 
 “Indenture” means this Indenture, as
amended or supplemented from time to time. 
 “Indirect Participant” means a Person who holds a beneficial
interest in a Global Note through a Participant. 
 “Initial Purchasers” means Jefferies & Company,
Inc., Wells Fargo Securities, LLC, Credit Suisse Securities (USA) LLC, RBS Securities Inc. and Roth Capital Partners, LLC. 

“Institutional Accredited Investor” means an institution that is an “accredited investor” as defined in Rule
501(a)(1), (2), (3) or (7) under the Securities Act, who are not also QIBs. 
 “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 equal to the Fair Market
Value of the Company’s Investments in such Subsidiary that were not sold or disposed of in an amount determined as provided in the final paragraph of Section 4.07 hereof. The acquisition by the Company or any Restricted Subsidiary of the
Company of a Person that holds an Investment in a third Person will be deemed to be an Investment by the Company or such Restricted Subsidiary in such third Person in an amount equal to the Fair Market Value of the Investments held by the acquired
Person in such third Person in an amount determined as provided in the final paragraph of Section 4.07 hereof. Except as otherwise provided in this Indenture, the amount of an Investment will be determined at the time the Investment is made and
without giving effect to subsequent changes in value. 
 “Legal Holiday” means a Saturday, a Sunday or a day on
which banking institutions in the City of New York or at a place of payment are authorized by law, regulation or executive order to remain closed. If a payment date is a Legal Holiday at a place of payment, payment may be made at that place on the
next succeeding day that is not a Legal Holiday, and no interest shall accrue on such payment for the intervening period. 

“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 filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction. 

  
 12 

 “Merger” means the merger of Power Fuels with and into Merger Sub pursuant
to the Agreement and Plan of Merger, dated as of September 3, 2012, among Heckmann, Merger Sub, Power Fuels and Mark D. Johnsrud, the sole owner of Power Fuels. 
 “Merger Sub” means Rough Rider Acquisition, LLC, a Delaware limited liability company and wholly-owned subsidiary of Heckmann. 

“Moody’s” means Moody’s Investors Service, Inc. 

“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 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, 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, and amounts required to be applied to the repayment of Indebtedness, other than Indebtedness under a Credit Facility, secured by a Lien on the asset
or assets that were the subject of such Asset Sale and any reserve for adjustment, earn-out or indemnification obligations in respect of the sale price of such asset or assets established in accordance with GAAP. 

“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; and 

(2) as to which the lenders have been notified in writing that they will not have any recourse to the stock or assets of
the Company or any of its Restricted Subsidiaries (other than the Equity Interests of an Unrestricted Subsidiary). 

“Non-U.S. Person” means a Person who is not a U.S. Person. 

“Notes” has the meaning assigned to it in the preamble to this Indenture. 

“Obligations” means any principal, interest, penalties, fees, indemnifications, reimbursements, damages and other
liabilities payable under the documentation governing any Indebtedness. 
 “Offering Circular” means that
certain confidential Offering Circular dated October 26, 2012, pursuant to which the Company offered the Notes. 

“Officer” means, with respect to any Person, the Chairman of the Board of Directors, the Chief Executive Officer, the
President, the Chief Operating Officer, the Chief Financial Officer, the Treasurer, any Assistant Treasurer, the Controller, the 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 11.03 hereof. 

  
 13 

 “Opinion of Counsel” means an opinion from legal counsel who is reasonably
acceptable to the Trustee, which opinion meets the requirements of Section 11.03 hereof. The counsel may be an employee of or counsel to the Company, any Subsidiary of the Company. 

“Participant” means, with respect to the Depositary, Euroclear or Clearstream, a Person who has an account with the
Depositary, Euroclear or Clearstream, respectively (and, with respect to DTC, shall include Euroclear and Clearstream). 

“Permitted Business” means any business that is the same or similar, reasonably related, complementary or incidental to
a water and environmental solutions industry or 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 assets to, or is liquidated into, the
Company or a Restricted Subsidiary of the Company; 
 (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 hereof; 
 (5) any acquisition of assets or Capital Stock solely in exchange for the issuance of Equity Interests (other than Disqualified Stock) of the Company; 

(6) any Investments received in compromise or resolution of (A) obligations of trade creditors or customers that were
incurred in the ordinary course of business of the Company or any of its Restricted Subsidiaries, including pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer; or
(B) litigation, arbitration or other disputes; 
 (7) Investments represented by Hedging Obligations;

 (8) loans or advances to employees made in the ordinary course of business of the Company or any Restricted
Subsidiary of the Company in an aggregate principal amount not to exceed $2.5 million at any one time outstanding; 
 (9) repurchases of the Notes; 
 (10) any guarantee of Indebtedness
permitted to be incurred by Section 4.09 hereof other than a guarantee of Indebtedness of an Affiliate of the Company that is not a Restricted Subsidiary of the Company; 

  
 14 

 (11) any Investment existing on, or made pursuant to binding commitments
existing on, the date of this Indenture and any Investment consisting of an extension, modification or renewal of any Investment existing on, or made pursuant to a binding commitment existing on, the date of this Indenture; provided that the
amount of any such Investment may be increased (a) as required by the terms of such Investment as in existence on the date of this Indenture or (b) as otherwise permitted under this Indenture; 

(12) Investments acquired after the date of this Indenture as a result of the acquisition by the Company or any Restricted
Subsidiary of the Company of another Person, including by way of a merger, amalgamation or consolidation with or into the Company or any of its Restricted Subsidiaries in a transaction that is not prohibited by Section 5.01 hereof after the
date of this Indenture to the extent that such Investments were not made in contemplation of such acquisition, merger, amalgamation or consolidation and were in existence on the date of such acquisition, merger, amalgamation or consolidation; and

 (13) other Investments in any Person (other than an Affiliate of the Company that is not a Subsidiary of the
Company) 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 (13) that
are at the time outstanding, not to exceed greater of (x) $25.0 million and (y) 3% of Total Assets. 

“Permitted Liens” means: 
 (1) Liens on assets of the Company or any of its Restricted Subsidiaries securing Indebtedness and other Obligations that was permitted to be incurred by Section 4.09(b)(1) or 4.09(b)(14)(a) hereof
and/or securing Hedging Obligations related thereto and/or securing Obligations with regard to Treasury Management Arrangements; 
 (2) Liens in favor of the Company; 
 (3) Liens on property of a
Person existing at the time such Person becomes a Restricted Subsidiary of the Company or 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 Person becoming a Restricted Subsidiary of the Company or such merger or consolidation and do not extend to any assets other than those of the Person that becomes a Restricted Subsidiary of the Company or is merged with or
into or consolidated with the Company or any Restricted Subsidiary of the Company; 
 (4) Liens on property
(including Capital Stock) existing at the time of acquisition of the property by the Company or any Subsidiary of the Company; provided that such Liens were in existence prior to such acquisition and not incurred in contemplation of, such
acquisition; 
 (5) Liens to secure the performance of statutory obligations, insurance, surety or appeal bonds,
workers compensation obligations, performance bonds or other obligations of a like nature incurred in the ordinary course of business (including Liens to secure letters of credit issued to assure payment of such obligations); 

(6) Liens to secure Indebtedness (including Capital Lease Obligations) permitted by Section 4.09(b)(4) hereof
covering only the assets acquired with or financed by such Indebtedness; 

  
 15 

 (7) Liens existing on the date of this Indenture; 

(8) Liens for taxes, assessments or governmental charges or claims that are not yet delinquent or that are being contested
in good faith by appropriate proceedings promptly instituted and diligently concluded; provided that any reserve or other appropriate provision as is required in conformity with GAAP has been made therefor; 

(9) Liens imposed by law, such as carriers’, warehousemen’s, landlord’s and mechanics’ Liens, in each
case, incurred in the ordinary course of business; 
 (10) survey exceptions, easements or reservations of, or
rights of others for, licenses, rights-of-way, sewers, electric lines, telegraph and telephone lines and other similar purposes, or zoning or other restrictions as to the use of real property that were not incurred in connection with Indebtedness
and that do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person; 

(11) Liens created for the benefit of (or to secure) the Notes; 

(12) Liens to secure any Permitted Refinancing Indebtedness permitted to be incurred under this Indenture;
provided, however, that: 
 (a) the new Lien is limited to all or part of the same property and
assets that secured or, under the written agreements pursuant to which the original Lien arose, could secure the original Lien (plus improvements and accessions to, such property or proceeds or distributions thereof); and 

(b) the Indebtedness secured by the new Lien is not increased to any amount greater than the sum of (x) the
outstanding principal amount, or, if greater, committed amount, of the Permitted Refinancing Indebtedness and (y) an amount necessary to pay any fees and expenses, including premiums, related to such renewal, refunding, refinancing,
replacement, defeasance or discharge; 
 (13) Liens on insurance policies and proceeds thereof, or other
deposits, to secure insurance premium financings; 
 (14) filing of Uniform Commercial Code financing statements
as a precautionary measure in connection with operating leases; 
 (15) bankers’ Liens, rights of setoff,
Liens arising out of judgments or awards not constituting an Event of Default and notices of lis pendens and associated rights related to litigation being contested in good faith by appropriate proceedings and for which adequate reserves have
been made; 
 (16) Liens on cash, Cash Equivalents or other property arising in connection with the defeasance,
discharge or redemption of Indebtedness; 
 (17) Liens on specific items of inventory or other goods (and the
proceeds thereof) of any Person securing such Person’s obligations in respect of bankers’ acceptances issued or created in the ordinary course of business for the account of such Person to facilitate the purchase, shipment or storage of
such inventory or other goods; 

  
 16 

 (18) grants of software and other technology licenses in the ordinary course
of business; 
 (19) Liens arising out of conditional sale, title retention, consignment or similar arrangements
for the sale of goods entered into in the ordinary course of business; 
 (20) Liens securing Hedging Obligations
made in the ordinary course of business and not for speculation; provided that such Hedging Obligations are permitted under this Indenture; 
 (21) Liens to secure letters of credit issued pursuant to Section 4.09(b)(14)(a) hereof; provided if and to the extent such letters of credit are drawn upon, such drawing is reimbursed no later than
the tenth Business Day following a demand for reimbursement following payment on the letter of credit; and 

(22) 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 $15.0 million at any one time outstanding. 
 “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 renew, refund, refinance, replace, defease or discharge 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 renewed, refunded, refinanced, replaced, defeased or discharged (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including 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 that is (a) equal to or greater than the Weighted Average Life to Maturity of, the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged
or (b) more than 90 days after the final maturity date of the Notes; 
 (3) if the Indebtedness being
renewed, refunded, refinanced, replaced, defeased or discharged is subordinated in right of payment to the Notes, such Permitted Refinancing Indebtedness is subordinated in right of payment to the Notes on terms at least as favorable to the Holders
of Notes as those contained in the documentation governing the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged; and 
 (4) such Indebtedness is incurred either by the Company or by the Restricted Subsidiary of the Company that was the obligor on the Indebtedness being renewed, refunded, refinanced, replaced, defeased or
discharged and is guaranteed only by Persons who were obligors on the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged. 
 “Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company or government or
other entity. 

  
 17 

 “Power Fuels” means Badlands Power Fuels, LLC (formerly Badlands Energy,
LLC), a Delaware limited liability company. 
 “Private Placement Legend” means the legend set forth in
Section 2.06(f)(1) hereof to be placed on all Notes issued under this Indenture except where otherwise permitted by the provisions of this Indenture. 
 “Pro Forma Cost Savings” means, with respect to any four-quarter period, the reduction in net costs and expenses that: 

(1) were directly attributable to an acquisition, Investment, disposition, merger, consolidation or discontinued operation
or other specified action that occurred during the four-quarter period or after the end of the four-quarter period and on or prior to the Calculation Date and that would properly be reflected in a pro forma income statement prepared in accordance
with Regulation S-X under the Securities Act; 
 (2) were actually implemented prior to the Calculation Date in
connection with or as a result of an acquisition, Investment, disposition, merger, consolidation or discontinued operation or other specified action and that are supportable and quantifiable by the underlying accounting records; or 

(3) relate to an acquisition, Investment, disposition, merger, consolidation or discontinued operation or other specified
action and that the Board of Directors of the Company reasonably determines are probable based upon specifically identifiable actions to be taken within 12 months of the date of the closing of the acquisition, Investment, disposition, merger,
consolidation or discontinued operation or specified action; 
 provided that the aggregate amount of cost savings added pursuant to
clauses (2) and (3) of this definition shall not exceed $10.0 million in any four-quarter period. 

“QIB” means a “qualified institutional buyer” as defined in Rule 144A. 

“Regulation S” means Regulation S promulgated under the Securities Act. 

“Regulation S Global Note” means a Regulation S Temporary Global Note or Regulation S Permanent Global Note, as
appropriate. 
 “Regulation S Permanent Global Note” means a permanent Global Note in the form of Exhibit A1
hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee, issued in a denomination equal to the outstanding principal amount of the
Regulation S Temporary Global Note upon expiration of the Restricted Period. 
 “Regulation S Temporary Global
Note” means a temporary Global Note in the form of Exhibit A2 hereto deposited with or on behalf of and registered in the name of the Depositary or its nominee, issued in a denomination equal to the outstanding principal amount of the Notes
initially sold in reliance on Rule 903 of Regulation S. 
 “Responsible Officer,” when used with respect to the
Trustee, means any officer within the Corporate Trust Administration of the Trustee (or any successor group of the Trustee) or any other officer of the Trustee customarily performing functions similar to those performed by any of the above

  
 18 

 
designated officers and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his knowledge of and familiarity with the
particular subject and who shall have direct responsibility for the administration of this Indenture. 
 “Restricted
Definitive Note” means a Definitive Note bearing the Private Placement Legend. 
 “Restricted Global
Note” means a Global Note bearing the Private Placement Legend. 
 “Restricted Investment” means an
Investment other than a Permitted Investment. 
 “Restricted Period” means the 40-day distribution compliance
period as defined in Regulation S. 
 “Restricted Subsidiary” of a Person means any Subsidiary of the referent
Person that is not an Unrestricted Subsidiary, and, when used in respect of the Company, shall mean a Restricted Subsidiary of the Company whether or not so stated. 
 “Rough Rider” means Rough Rider Escrow, Inc., a Delaware corporation and wholly-owned subsidiary of Heckmann. 

“Rule 144” means Rule 144 promulgated under the Securities Act. 

“Rule 144A” means Rule 144A promulgated under the Securities Act. 

“Rule 903” means Rule 903 promulgated under the Securities Act. 

“Rule 904” means Rule 904 promulgated under the Securities Act. 

“S&P” means Standard & Poor’s Ratings Group. 

“SEC” means the United States Securities and Exchange Commission. 

“Securities Act” means the United States Securities Act of 1933, as amended. 

“Significant Subsidiary” means any Restricted 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 date of this Indenture. 
 “Stage II Indenture” means that certain indenture, dated as of April 10, 2012, among Heckmann, the guarantors party thereto and The Bank of New York Mellon Trust Company, N.A., a
national banking association, as trustee, as amended or supplemented from time to time. 
 “Stage II Notes”
means 9.875% Senior Notes due 2018 to be issued as Additional Notes under and as defined in the Stage II Indenture. 

“Stated Maturity” means, with respect to any installment of interest or principal on any series of Indebtedness, the
date on which the payment of interest or principal was scheduled to be paid in the documentation governing such Indebtedness as of the date of this Indenture, 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. 

  
 19 

 “Subsidiary” means, with respect to any specified Person: 

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

(2) any partnership or limited liability company of which (a) more than 50% of the capital accounts, distribution
rights, total equity and voting interests or general and limited partnership interests, as applicable, are owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof,
whether in the form of membership, general, special or limited partnership interests or otherwise, or (b) the only general partners of which are that Person or one or more Subsidiaries of that Person (or any combination thereof). 

“Termination Date” means December 31, 2012. 

“Total Assets” means, with respect to any Person, the total consolidated assets of such Person and its Restricted
Subsidiaries as shown on (or determined from) the most recent internal balance sheet of such Person. 
 “Transaction
Costs” means any legal, accounting, advisory and other costs, fees and expenses incurred by the Company or a Restricted Subsidiary in connection with (a) any acquisitions or attempted acquisitions, (b) any Credit Facility,
including any related amendments, waivers or consents thereto, or (c) the Notes, including any related amendments, waivers or consents, including, in each case, relocation expenses, integration expense and compensation charges (including stay
bonuses and severance expenses) incurred in respect thereof. 
 “Treasury Management Arrangement” means any
agreement or other arrangement governing the provision of treasury or cash management services, including deposit accounts, overdraft, credit or debit card, funds transfer, automated clearinghouse, zero balance accounts, returned check
concentration, controlled disbursement, lockbox, account reconciliation and reporting and trade finance services and other cash management services. 
 “Treasury Rate” means, as of any redemption date, the yield to maturity as of such redemption date of 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
of similar market data)) most nearly equal to the period from the redemption date to April 15, 2015; provided, however, that if the period from the redemption date to April 15, 2015, is less than one year, the weekly average yield
on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used. 

“Trustee” means The Bank of New York Mellon Trust Company, N.A., until a successor replaces it in accordance with the
applicable provisions of this Indenture and thereafter means the successor serving hereunder. 
 “Unrestricted
Definitive Note” means a Definitive Note that does not bear and is not required to bear the Private Placement Legend. 

  
 20 

 “Unrestricted Global Note” means a Global Note that does not bear and is
not required to bear the Private Placement Legend. 
 “Unrestricted Subsidiary” means China Water &
Drinks, Inc. and any other Subsidiary of the Company that is designated by the Board of Directors of the Company as an Unrestricted Subsidiary pursuant to a resolution of the Board of Directors of the Company, and any Subsidiary of an Unrestricted
Subsidiary, but only to the extent that such Subsidiary: 
 (1) has no Indebtedness other than Non-Recourse Debt;

 (2) except as permitted by Section 4.11 hereof, 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. 
 “U.S.
Person” means a U.S. Person as defined in Rule 902(k) promulgated under the Securities Act. 
 “Voting
Stock” of any specified Person as of any date means the Capital Stock of such Person that is at the time entitled to vote in the election of the Board of Directors of such Person. 

“Weighted Average Life to Maturity” means, when applied to any Indebtedness at any date, the number of years obtained by
dividing: 
 (1) the sum of the products obtained by multiplying (a) the amount of each then remaining
installment, sinking fund, serial maturity or other required payments of principal, including payment at final maturity, in respect of the Indebtedness, by (b) the number of years (calculated to the nearest one-twelfth) that will elapse between
such date and the making of such payment; by 
 (2) the then outstanding principal amount of such
Indebtedness. 
 Section 1.02 Other Definitions. 
  

					
	 Term
	  	Defined
in
Section	 
		
	 “Affiliate Transaction”
	  	 	4.11	  
	 “Asset Sale Offer”
	  	 	3.09	  
	 “Authentication Order”
	  	 	2.02	  
	 “Change of Control Offer”
	  	 	4.15	  
	 “Change of Control Payment”
	  	 	4.15	  

  
 21 

					
	 Term
	  	Defined
in
Section	 
		
	 “Change of Control Payment Date”
	  	 	4.15	  
	 “Covenant Defeasance”
	  	 	8.03	  
	 “DTC”
	  	 	2.03	  
	 “Escrow Account”
	  	 	3.08	  
	 “Escrowed Funds”
	  	 	3.08	  
	 “Event of Default”
	  	 	6.01	  
	 “Excess Proceeds”
	  	 	4.10	  
	 “Exchange Redemption Date”
	  	 	3.08	  
	 “incur”
	  	 	4.09	  
	 “Legal Defeasance”
	  	 	8.02	  
	 “Offer Amount”
	  	 	3.09	  
	 “Offer Period”
	  	 	3.09	  
	 “Paying Agent”
	  	 	2.03	  
	 “Permitted Debt”
	  	 	4.09	  
	 “Payment Default”
	  	 	6.01	  
	 “Purchase Date”
	  	 	3.09	  
	 “Registrar”
	  	 	2.03	  
	 “Restricted Payments”
	  	 	4.07	  
	 “Special Redemption”
	  	 	3.08	  
	 “Special Redemption Date”
	  	 	3.08	  
	 “Special Redemption Price”
	  	 	3.08	  
	 “Stage II Notes Exchange Redemption”
	  	 	3.08	  

 Section 1.03 Rules of Construction. 
 Unless the context otherwise requires: 
 (1) a term has the meaning
assigned to it; 
 (2) an accounting term not otherwise defined has the meaning assigned to it in accordance with
GAAP; 
 (3) “or” is not exclusive; 

(4) “including” is not limiting; 

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

(6) “will” shall be interpreted to express a command; 

(7) provisions apply to successive events and transactions; and 

(8) references to sections of or rules under the Securities Act will be deemed to include substitute, replacement of
successor sections or rules adopted by the SEC from time to time. 

  
 22 

 ARTICLE 2 
 THE NOTES 
 Section 2.01 Form and Dating. 

(a) General. The Notes and the Trustee’s certificate of authentication will be substantially in the form of Exhibits A1 and
A2 hereto. The Notes may have notations, legends or endorsements required by law, stock exchange rule or usage. Each Note will be dated the date of its authentication. The Notes shall be in denominations of $2,000 and integral multiples of $1,000 in
excess thereof. 
 The terms and provisions contained in the Notes will constitute, and are hereby expressly made, a part of
this Indenture and the Company and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express
provisions of this Indenture, the provisions of this Indenture shall govern and be controlling. 
 (b) Global Notes.
Notes issued in global form will be substantially in the form of Exhibits A1 or A2 hereto (including the Global Note Legend thereon and the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Notes issued in
definitive form will be substantially in the form of Exhibit A1 hereto (but without the Global Note Legend thereon and without the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Each Global Note will represent
such of the outstanding Notes as will be specified therein and each shall provide that it represents the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes
represented thereby may from time to time be reduced or increased, as appropriate, to reflect exchanges and redemptions. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the aggregate principal amount of
outstanding Notes represented thereby will be made by the Trustee or the Custodian, at the direction of the Trustee, in accordance with instructions given by the Holder thereof as required by Section 2.06 hereof. 

(c) Temporary Global Notes. Notes offered and sold in reliance on Regulation S will be issued initially in the form of the
Regulation S Temporary Global Note, which will be deposited on behalf of the purchasers of the Notes represented thereby with the Trustee, at its New York office, as custodian for the Depositary, and registered in the name of the Depositary or the
nominee of the Depositary for the accounts of designated agents holding on behalf of Euroclear or Clearstream, duly executed by the Company and authenticated by the Trustee as hereinafter provided. The Restricted Period will be terminated upon the
receipt by the Trustee of: 
 (1) a written certificate from the Depositary, together with copies of certificates
from Euroclear and Clearstream certifying that they have received certification of non-United States beneficial ownership of 100% of the aggregate principal amount of the Regulation S Temporary Global Note (except to the extent of any beneficial
owners thereof who acquired an interest therein during the Restricted Period pursuant to another exemption from registration under the Securities Act and who will take delivery of a beneficial ownership interest in a 144A Global Note or an IAI
Global Note bearing a Private Placement Legend, all as contemplated by Section 2.06(b) hereof); and 
 (2)
an Officers’ Certificate from the Company. 
 Following the termination of the Restricted Period, beneficial interests in
the Regulation S Temporary Global Note will be exchanged for beneficial interests in the Regulation S Permanent Global Note pursuant to the Applicable Procedures. Simultaneously with the authentication of the Regulation S

  
 23 

 
Permanent Global Note, the Trustee will cancel the Regulation S Temporary Global Note. The aggregate principal amount of the Regulation S Temporary Global Note and the Regulation S Permanent
Global Note 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 the case may be, in connection with transfers of interests therein as hereinafter provided.

 (3) Euroclear and Clearstream Procedures Applicable. The provisions of the “Operating Procedures
of the Euroclear System” and “Terms and Conditions Governing Use of Euroclear” and the “General Terms and Conditions of Clearstream Banking” and “Customer Handbook” of Clearstream will be applicable to transfers of
beneficial interests in the Regulation S Temporary Global Note and the Regulation S Permanent Global Note that are held by Participants through Euroclear or Clearstream. 
 Section 2.02 Execution and Authentication. 
 At least one Officer must
sign the Notes for the Company by manual or facsimile signature. 
 If an Officer whose signature is on a Note no longer holds
that office at the time a Note is authenticated, the Note will nevertheless be valid. 
 A Note will not be valid until
authenticated by the manual signature of the Trustee. The signature will be conclusive evidence that the Note has been authenticated under this Indenture. 
 The Trustee will, upon receipt of a written order of the Company signed by an Officer (an “Authentication Order”), authenticate Notes for
original issue that may be validly issued under this Indenture. The aggregate principal amount of Notes outstanding at any time may not exceed $150.0 million, except as provided in Section 2.07 hereof.  

The Trustee may appoint an authenticating agent acceptable to the Company to authenticate Notes. An authenticating agent may authenticate
Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as an Agent to deal with Holders or an Affiliate of the
Company. 
 Section 2.03 Registrar and Paying Agent. 
 The Company will maintain an office or agency where Notes may be presented for registration of transfer or for exchange (“Registrar”) and an office or agency where Notes may be presented
for payment (“Paying Agent”). The Registrar will keep a register of the Notes and of their transfer and exchange. The Company may appoint one or more co-registrars and one or more additional paying agents. The term
“Registrar” includes any co-registrar and the term “Paying Agent” includes any additional paying agent. The Company may change any Paying Agent or Registrar without notice to any Holder. The Company will notify the Trustee in
writing of the name and address of any Agent not a party to this Indenture. If the Company fails to appoint or maintain another entity as Registrar or Paying Agent, the Trustee shall act as such. The Company or any of its Subsidiaries may act as
Paying Agent or Registrar. 
 The Company initially appoints The Depository Trust Company (“DTC”) to act as
Depositary with respect to the Global Notes. 
 The Company initially appoints the Trustee to act as the Registrar and Paying
Agent and to act as Custodian with respect to the Global Notes. 

  
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 Section 2.04 Paying Agent to Hold Money in Trust. 

The Company will require each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in trust for the
benefit of Holders or the Trustee all money held by the Paying Agent for the payment of principal of, premium on, if any, or interest, if any, on, the Notes, and will notify the Trustee of any default by the Company in making any such payment. While
any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the
Paying Agent (if other than the Company or a Subsidiary) will have no further liability for the money. If the Company or a Subsidiary acts as Paying Agent, it will segregate and hold in a separate trust fund for the benefit of the Holders all money
held by it as Paying Agent. Upon any bankruptcy or reorganization proceedings relating to the Company, the Trustee will serve as Paying Agent for the Notes. 
 Section 2.05 Holder Lists. 
 The Trustee will preserve in as current a
form as is reasonably practicable the most recent list available to it of the names and addresses of all Holders. If the Trustee is not the Registrar, the Company will furnish to the Trustee at least seven Business Days before each interest payment
date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of the Holders of Notes. 

Section 2.06 Transfer and Exchange. 
 (a) Transfer and Exchange of Global Notes. A Global Note may not be transferred except as a whole by the Depositary to a nominee of the Depositary, by a nominee of the Depositary to the Depositary
or to another nominee of the Depositary, or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary. A Global Note is exchangeable for Definitive Notes if: 

(1) the Company delivers to the Trustee notice from the Depositary that it is unwilling or unable to continue to act as
Depositary or that it is no longer a clearing agency registered under the Exchange Act and, in either case, a successor Depositary is not appointed by the Company within 120 days after the date of such notice from the Depositary; 

(2) the Company in its sole discretion determines that the Global Notes (in whole but not in part) should be exchanged for
Definitive Notes and delivers a written notice to such effect to the Trustee; provided that in no event shall the Regulation S Temporary Global Note be exchanged by the Company for Definitive Notes prior to (A) the expiration of the
Restricted Period and (B) the receipt by the Registrar of any certificates required pursuant to Rule 903(b)(3)(ii)(B) under the Securities Act; or 
 (3) there has occurred and is continuing a Default or Event of Default with respect to the Notes. 
 Global Notes also may be exchanged or replaced, in whole or in part, as provided in Sections 2.07 and 2.10 hereof. Every Note authenticated and delivered in exchange for, or in lieu of, a Global Note or
any portion thereof, pursuant to this Section 2.06 or Section 2.07 or 2.10 hereof, shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note may not be exchanged for another Note other than as provided
in this Section 2.06(a), however, beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.06(b) or (c) hereof. 

  
 25 

 (b) Transfer and Exchange of Beneficial Interests in the Global Notes. The transfer
and exchange of beneficial interests in the Global Notes will be effected through the Depositary, in accordance with the provisions of this Indenture and the Applicable Procedures. Beneficial interests in the Restricted Global Notes will be subject
to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Transfers of beneficial interests in the Global Notes also will require compliance with either subparagraph (1) or (2) below, as
applicable, as well as one or more of the other following subparagraphs, as applicable: 
 (1) Transfer of
Beneficial Interests in the Same Global Note. Beneficial interests in any Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with
the transfer restrictions set forth in the Private Placement Legend; provided, however, that prior to the expiration of the Restricted Period, transfers of beneficial interests in the Regulation S Temporary Global Note may not be made to a
U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Beneficial interests in any Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an
Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Registrar to effect the transfers described in this Section 2.06(b)(1). 

(2) All Other Transfers and Exchanges of Beneficial Interests in Global Notes. In connection with all transfers and
exchanges of beneficial interests that are not subject to Section 2.06(b)(1) above, the transferor of such beneficial interest must deliver to the Registrar either: 

(A) both: 
 (i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to credit or cause to be credited a
beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged; and 
 (ii) instructions given in accordance with the Applicable Procedures containing information regarding the Participant account to be credited with such increase; or 

(B) both: 
 (i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to cause to be issued a Definitive Note in
an amount equal to the beneficial interest to be transferred or exchanged; and 
 (ii) instructions given by the
Depositary to the Registrar containing information regarding the Person in whose name such Definitive Note shall be registered to effect the transfer or exchange referred to in (1) above; 

provided that in no event shall Definitive Notes be issued upon the transfer or exchange of beneficial interests in the Regulation S
Temporary Global Note prior to (A) the expiration of the Restricted Period and (B) the receipt by the Registrar of any certificates required pursuant to Rule 903 under the Securities Act. 

  
 26 

 Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global
Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 2.06(g) hereof. 

(3) Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in any Restricted
Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted Global Note if the transfer complies with the requirements of Section 2.06(b)(2) above and the Registrar receives
the following: 
 (A) if the transferee will take delivery in the form of a beneficial interest in the 144A
Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof; 
 (B) if the transferee will take delivery in the form of a beneficial interest in the Regulation S Temporary Global Note or the Regulation S Permanent Global Note, then the transferor must deliver a
certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and 
 (C) if
the transferee will take delivery in the form of a beneficial interest in the IAI Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required
by item (3) thereof, if applicable. 
 (4) Transfer and Exchange of Beneficial Interests in a Restricted
Global Note for Beneficial Interests in an Unrestricted Global Note. A beneficial interest in any Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person
who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.06(b)(2) above and the Registrar receives the following: 

(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest
for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(a) thereof; or 

(B) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to
a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof; 

and, in each such case set forth in this subparagraph (4), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel
in a form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required
in order to maintain compliance with the Securities Act. 
 If any such transfer is effected pursuant to subparagraph
(4) above at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee shall authenticate one or more
Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred pursuant to subparagraph (4) above. 

  
 27 

 Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred
to Persons who take delivery thereof in the form of, a beneficial interest in a Restricted Global Note. 
 (c) Transfer or
Exchange of Beneficial Interests for Definitive Notes. 
 (1) Beneficial Interests in Restricted Global
Notes to Restricted Definitive Notes. If any holder of a beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note or to transfer such beneficial interest to a Person who takes
delivery thereof in the form of a Restricted Definitive Note, then, upon receipt by the Registrar of the following documentation: 
 (A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note, a certificate from such holder in the form of
Exhibit C hereto, including the certifications in item (2)(a) thereof; 
 (B) if such beneficial interest is
being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof; 

(C) if such beneficial interest is being transferred to a Non-U.S. Person in an offshore transaction in accordance with
Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof; 
 (D) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in
Exhibit B hereto, including the certifications in item (3)(a) thereof; 
 (E) if such beneficial interest is
being transferred to an Institutional Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (B) through (D) above, a certificate to the effect set
forth in Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable; 
 (F) if such beneficial interest is being transferred to the Company or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item
(3)(b) thereof; or 
 (G) if such beneficial interest is being transferred pursuant to an effective
registration statement under the Securities Act, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(c) thereof, 
 the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Company shall execute and the Trustee shall
authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this
Section 2.06(c) shall be registered in such name or names and in such authorized 

  
 28 

 
denomination or denominations as the holder of such beneficial interest shall instruct the Registrar through instructions from the Depositary and the Participant or Indirect Participant. The
Trustee shall deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c)(1) shall bear
the Private Placement Legend and shall be subject to all restrictions on transfer contained therein. 
 (2)
Beneficial Interests in Regulation S Temporary Global Note to Definitive Notes. Notwithstanding Sections 2.06(c)(1)(A) and (C) hereof, a beneficial interest in the Regulation S Temporary Global Note may not be exchanged for a Definitive
Note or transferred to a Person who takes delivery thereof in the form of a Definitive Note prior to (A) the expiration of the Restricted Period and (B) the receipt by the Registrar of any certificates required pursuant to Rule
903(b)(3)(ii)(B) under the Securities Act, except in the case of a transfer pursuant to an exemption from the registration requirements of the Securities Act other than Rule 903 or Rule 904. 

(3) Beneficial Interests in Restricted Global Notes to Unrestricted Definitive Notes. A holder of a beneficial
interest in a Restricted Global Note may exchange such beneficial interest for an Unrestricted Definitive Note or may transfer such beneficial interest to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note only if the
Registrar receives the following: 
 (A) if the holder of such beneficial interest in a Restricted Global Note
proposes to exchange such beneficial interest for an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(b) thereof; or 

(B) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to
a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof; 

and, in each such case set forth in this subparagraph (3), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel
in a form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required
in order to maintain compliance with the Securities Act. 
 (4) Beneficial Interests in Unrestricted Global
Notes to Unrestricted Definitive Notes. If any holder of a beneficial interest in an Unrestricted Global Note proposes to exchange such beneficial interest for a Definitive Note or to transfer such beneficial interest to a Person who takes
delivery thereof in the form of a Definitive Note, then, upon satisfaction of the conditions set forth in Section 2.06(b)(2) hereof, the Trustee will cause the aggregate principal amount of the applicable Unrestricted Global Note to be reduced
accordingly pursuant to Section 2.06(g) hereof, and the Company will execute and the Trustee will authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note
issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(4) will be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest requests through
instructions to the Registrar from or through the Depositary and the Participant or Indirect Participant. The Trustee will deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in
exchange for a beneficial interest pursuant to this Section 2.06(c)(4) will not bear the Private Placement Legend. 

  
 29 

 (d) Transfer and Exchange of Definitive Notes for Beneficial Interests. 

(1) Restricted Definitive Notes to Beneficial Interests in Restricted Global Notes. If any Holder of a Restricted
Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global
Note, then, upon receipt by the Registrar of the following documentation: 
 (A) if the Holder of such Restricted
Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (2)(b) thereof; 

(B) if such Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A, a certificate to the
effect set forth in Exhibit B hereto, including the certifications in item (1) thereof; 
 (C) if such
Restricted Definitive Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item
(2) thereof; 
 (D) if such Restricted Definitive Note is being transferred pursuant to an exemption from
the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof; 

(E) if such Restricted Definitive Note is being transferred to an Institutional Accredited Investor in reliance on an
exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (B) through (D) above, a certificate to the effect set forth in Exhibit B hereto, including the certifications, certificates and
Opinion of Counsel required by item (3) thereof, if applicable; 
 (F) if such Restricted Definitive Note is
being transferred to the Company or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof; or 

(G) if such Restricted Definitive Note is being transferred pursuant to an effective registration statement under the
Securities Act, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(c) thereof, 
 the Trustee will cancel the Restricted Definitive Note, increase or cause to be increased the aggregate principal amount of, in the case of clause (A) above, the appropriate Restricted Global Note,
in the case of clause (B) above, the 144A Global Note, in the case of clause (C) above, the Regulation S Global Note, and in all other cases, the IAI Global Note. 

(2) Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of a Restricted
Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note
only if the Registrar receives the following: 
 (A) if the Holder of such Definitive Notes proposes to exchange
such Notes for a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(c) thereof; or 

  
 30 

 (B) if the Holder of such Definitive Notes proposes to transfer such Notes
to a Person who shall take delivery thereof in the form of a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof; 

and, in each such case set forth in this subparagraph (2), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel
in a form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required
in order to maintain compliance with the Securities Act. 
 Upon satisfaction of the conditions of any of the
subparagraphs in this Section 2.06(d)(2), the Trustee will cancel the Definitive Notes and increase or cause to be increased the aggregate principal amount of the Unrestricted Global Note. 

(3) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of an Unrestricted
Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time.
Upon receipt of a request for such an exchange or transfer, the Trustee will cancel the applicable Unrestricted Definitive Note and increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global Notes. 

If any such exchange or transfer from a Definitive Note to a beneficial interest is effected pursuant to subparagraphs
(2) or (3) above at a time when an Unrestricted Global Note has not yet been issued, the Company will issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee will authenticate one or more
Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of Definitive Notes so transferred. 

(e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon request by a Holder of Definitive Notes and such
Holder’s compliance with the provisions of this Section 2.06(e), the Registrar will register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting Holder must present or surrender
to the Registrar the Definitive Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Registrar duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting
Holder must provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.06(e). 

(1) Restricted Definitive Notes to Restricted Definitive Notes. Any Restricted Definitive Note may be transferred
to and registered in the name of Persons who take delivery thereof in the form of a Restricted Definitive Note if the Registrar receives the following: 
 (A) if the transfer will be made pursuant to Rule 144A, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof; 

  
 31 

 (B) if the transfer will be made pursuant to Rule 903 or Rule 904, then the
transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and 
 (C) if the transfer will be made pursuant to any other exemption from the registration requirements of the Securities Act, then the transferor must deliver a certificate in the form of Exhibit B hereto,
including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable. 
 (2) Restricted Definitive Notes to Unrestricted Definitive Notes. Any Restricted Definitive Note may be exchanged by the Holder thereof for an Unrestricted Definitive Note or transferred to a
Person or Persons who take delivery thereof in the form of an Unrestricted Definitive Note if the Registrar receives the following: 
 (A) if the Holder of such Restricted Definitive Notes proposes to exchange such Notes for an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit C hereto, including the
certifications in item (1)(d) thereof; or 
 (B) if the Holder of such Restricted Definitive Notes proposes
to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof; 

and, in each such case set forth in this subparagraph (2), if the Registrar so requests, an Opinion of Counsel in a form reasonably acceptable to the
Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with
the Securities Act. 
 (3) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A Holder of
Unrestricted Definitive Notes may transfer such Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note. Upon receipt of a request to register such a transfer, the Registrar shall register the Unrestricted
Definitive Notes pursuant to the instructions from the Holder thereof. 
 (f) Legends. The following legends will appear
on the face of all Global Notes and Definitive Notes issued under this Indenture unless specifically stated otherwise in the applicable provisions of this Indenture. 

(1) Private Placement Legend. 

(A) Except as permitted by subparagraph (B) below, each Global Note and each Definitive Note (and all Notes issued in
exchange therefor or substitution thereof) shall bear the legend in substantially the following form: 
 “THIS SECURITY HAS NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD,

  
 32 

 
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, REGISTRATION. 

THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN
RULE 144A UNDER THE SECURITIES ACT), (B) IT IS A NON-U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO SUCH PURCHASERS
IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE OR (C) IT IS AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 UNDER THE SECURITIES ACT AND (2) AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE
EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 UNDER THE SECURITIES ACT, ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE
PURSUANT TO RULE 144A, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO
WHICH NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) 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 AND IN
ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, (D) TO AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT,
OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (E) PURSUANT TO A REGISTRATION
STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S, OR
REGISTRAR’S, AS APPLICABLE, RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (C), (D) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND
IN EACH OF THE FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE OR REGISTRAR. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER
AFTER THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 UNDER THE SECURITIES ACT.” 
 (B) Notwithstanding the foregoing, any Global Note or Definitive Note issued pursuant to subparagraphs (b)(4), (c)(3), (c)(4), (d)(2), (d)(3), (e)(2) or (e)(3) of this Section 2.06 (and all Notes
issued in exchange therefor or substitution thereof) will not bear the Private Placement Legend. 
 (2) Global
Note Legend. Each Global Note will bear a legend in substantially the following form: 
 “THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY
(AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE 

  
 33 

 
BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06
OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE
AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. 
 UNLESS AND UNTIL IT
IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE
DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK,
NEW YORK) (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.” 
 (3) Regulation
S Temporary Global Note Legend. The Regulation S Temporary Global Note will bear a legend in substantially the following form: 
 THE RIGHTS
ATTACHING TO THIS REGULATION S TEMPORARY GLOBAL NOTE, AND THE CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR DEFINITIVE NOTES, ARE AS SPECIFIED IN THE INDENTURE (AS DEFINED HEREIN). NEITHER THE HOLDER NOR THE BENEFICIAL OWNERS OF THIS
REGULATION S TEMPORARY GLOBAL NOTE SHALL BE ENTITLED TO RECEIVE PAYMENT OF INTEREST HEREON. 
 (g) Cancellation and/or
Adjustment of Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such
Global Note will be returned to or retained and canceled by the Trustee in accordance with Section 2.11 hereof. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who
will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note will be reduced accordingly and an endorsement will be made on such Global
Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest
in another Global Note, such other Global Note will be increased accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase. 

(h) General Provisions Relating to Transfers and Exchanges. 

  
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 (1) To permit registrations of transfers and exchanges, the Company will
execute and the Trustee will authenticate Global Notes and Definitive Notes upon receipt of an Authentication Order in accordance with Section 2.02 hereof or at the Registrar’s request. 

(2) No service charge will be made to a Holder of a beneficial interest in a Global Note or to a Holder of a Definitive
Note for any registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer taxes or similar
governmental charge payable upon exchange or transfer pursuant to Sections 2.10, 3.06, 3.09, 4.10, 4.15 and 9.04 hereof). 
 (3) The Registrar will not be required to register the transfer of or exchange of any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part.

 (4) All Global Notes and Definitive Notes issued upon any registration of transfer or exchange of Global Notes
or Definitive Notes will be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Global Notes or Definitive Notes surrendered upon such registration of transfer or exchange.

 (5) Neither the Registrar nor the Company will be required: 

(A) to issue, to register the transfer of or to exchange any Notes during a period beginning at the opening of business 15
days before the day of any selection of Notes for redemption under Section 3.02 hereof and ending at the close of business on the day of selection; 
 (B) to register the transfer of or to exchange any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part; or 

(C) to register the transfer of or to exchange a Note between a record date and the next succeeding interest payment date.

 (6) Prior to due presentment for the registration of a transfer of any Note, the Trustee, any Agent and the
Company may deem and treat the Person in whose name any Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of and interest on such Notes and for all other purposes, and none of the Trustee, any
Agent or the Company shall be affected by notice to the contrary. 
 (7) The Trustee will authenticate Global
Notes and Definitive Notes in accordance with the provisions of Section 2.02 hereof. 
 (8) All
certifications, certificates and Opinions of Counsel required to be submitted to the Registrar pursuant to this Section 2.06 to effect a registration of transfer or exchange may be submitted by facsimile. 

Section 2.07 Replacement Notes. 
 If any mutilated Note is surrendered to the Trustee or the Company and the Trustee receives evidence to its satisfaction of the destruction, loss or theft of any Note, the Company will issue and the

  
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Trustee, upon receipt of an Authentication Order, will authenticate a replacement Note if the Trustee’s requirements are met. If required by the Trustee or the Company, an indemnity bond
must be supplied by the Holder that is sufficient in the judgment of the Trustee and the Company to protect the Company, the Trustee, any Agent and any authenticating agent from any loss that any of them may suffer if a Note is replaced. The Company
may charge for its expenses in replacing a Note. 
 Every replacement Note is an additional obligation of the Company and will
be entitled to all of the benefits of this Indenture equally and proportionately with all other Notes duly issued hereunder. 

Section 2.08 Outstanding Notes. 
 The Notes outstanding at any time are all the Notes authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest in a Global Note
effected by the Trustee in accordance with the provisions hereof, and those described in this Section 2.08 as not outstanding. Except as set forth in Section 2.09 hereof, 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 2.07 hereof, it ceases to be
outstanding unless the Trustee receives proof satisfactory to it that the replaced Note is held by a protected purchaser. 
 If
the principal amount of any Note is considered paid under Section 4.01 hereof, it ceases to be outstanding and interest on it ceases to accrue. 
 If the Paying Agent (other than the Company, a Subsidiary or an Affiliate of any thereof) holds, on a redemption date or maturity date, money sufficient to pay Notes payable on that date, then on and
after that date such Notes will be deemed to be no longer outstanding and will cease to accrue interest. 
 Section 2.09 Treasury
Notes. 
 In determining whether the Holders of the required principal amount of Notes have concurred in any direction,
waiver or consent, Notes owned by the Company, or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company, will be considered as though not outstanding, except that for the
purposes of determining whether the Trustee will be protected in relying on any such direction, waiver or consent, only Notes that the Trustee knows are so owned will be so disregarded. 
 Section 2.10 Temporary Notes. 
 Until certificates representing Notes
are ready for delivery, the Company may prepare and the Trustee, upon receipt of an Authentication Order, will authenticate temporary Notes. Temporary Notes will be substantially in the form of certificated Notes but may have variations that the
Company considers appropriate for temporary Notes and as may be reasonably acceptable to the Trustee. Without unreasonable delay, the Company will prepare and the Trustee will authenticate definitive Notes in exchange for temporary Notes.

 Holders of temporary Notes will be entitled to all of the benefits of this Indenture. 

Section 2.11 Cancellation. 
 The Company at any time may deliver Notes to the Trustee for cancellation. The Registrar and Paying Agent will forward to the Trustee any Notes surrendered to them for registration of transfer,

  
 36 

 
exchange or payment. The Trustee and no one else will cancel all Notes surrendered for registration of transfer, exchange, payment, replacement or cancellation and will dispose of canceled Notes
(subject to the record retention requirements of the Exchange Act). Certification of the disposal of all canceled Notes will be delivered to the Company upon the Company’s written request. The Company may not issue new Notes to replace Notes
that it has paid or that have been delivered to the Trustee for cancellation. 
 Section 2.12 Defaulted Interest. 

If the Company defaults in a payment of interest on the Notes, it will pay the defaulted interest in any lawful manner plus, to the
extent lawful, interest payable on the defaulted interest, to the Persons who are Holders on a subsequent special record date, in each case at the rate provided in the Notes and in Section 4.01 hereof. The Company will notify the Trustee in
writing of the amount of defaulted interest proposed to be paid on each Note and the date of the proposed payment. The Company will fix or cause to be fixed each such special record date and payment date; provided that no such special record
date may be less than 10 days prior to the related payment date for such defaulted interest. At least 15 days before the special record date, the Company (or, upon the written request of the Company, the Trustee in the name and at the expense of the
Company) will mail or cause to be mailed to Holders a notice that states the special record date, the related payment date and the amount of such interest to be paid. 
 Section 2.13 CUSIP Numbers. 
 The Company in issuing the Notes may use
“CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices of redemption as a convenience to Holders; provided 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. The Company will promptly notify the Trustee in writing of any change in the “CUSIP” numbers. 
 ARTICLE 3 
 REDEMPTION AND PREPAYMENT 

Section 3.01 Notices to Trustee. 
 If the Company elects to redeem Notes pursuant to the optional redemption provisions of Section 3.07 hereof, it must furnish to the Trustee, at least 35 days but not more than 60 days before a
redemption date, an Officers’ Certificate setting forth: 
 (1) the clause of this Indenture pursuant to
which the redemption shall occur; 
 (2) the redemption date; 

(3) the principal amount of Notes to be redeemed; and 

(4) the redemption price. 
 Section 3.02 Selection of Notes to Be Redeemed or Purchased. 
 If less
than all of the Notes are to be redeemed or purchased in an offer to purchase at any time, the Trustee will select Notes for redemption or purchase on a pro rata basis (or, in the case of Notes

  
 37 

 
issued in global form pursuant to Article 2 hereof, by lot or such other method the Depositary deems fair and appropriate) unless otherwise required by law or applicable stock exchange or
depositary requirements. 
 In the event of partial redemption or purchase by lot, the particular Notes to be redeemed or
purchased will be selected, unless otherwise provided herein, not less than 30 nor more than 60 days prior to the redemption or purchase date by the Trustee from the outstanding Notes not previously called for redemption or purchase. 

The Trustee will promptly notify the Company in writing of the Notes selected for redemption or purchase and, in the case of any Note
selected for partial redemption or purchase, the principal amount thereof to be redeemed or purchased. Notes and portions of Notes selected will be in amounts of $2,000 or whole multiples of $1,000 in excess thereof; except that if all of the Notes
of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes held by such Holder shall be redeemed or purchased. Except as provided in the preceding sentence, provisions of this Indenture that apply to Notes called for
redemption or purchase also apply to portions of Notes called for redemption or purchase. 
 Section 3.03 Notice of Redemption.

 Except as provided in Section 3.08 hereof, and subject to the provisions of Section 3.09 hereof, at least 30 days
but not more than 60 days before a redemption date, the Company will mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may
be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of this Indenture pursuant to Articles 8 or 11 hereof. 

The notice will identify the Notes to be redeemed and will state: 

(1) the redemption date; 
 (2) the redemption price; 
 (3) if any Note is being redeemed in
part, the portion of the principal amount of such Note to be redeemed and that, after the redemption date upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion will be issued upon cancellation of the
original Note; 
 (4) the name and address of the Paying Agent; 

(5) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price; 

(6) that, unless the Company defaults in making such redemption payment, interest on Notes called for redemption ceases to
accrue on and after the redemption date; 
 (7) the paragraph of the Notes and/or Section of this Indenture
pursuant to which the Notes called for redemption are being redeemed; and 
 (8) that no representation is made
as to the correctness or accuracy of the CUSIP number, if any, listed in such notice or printed on the Notes. 

  
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 At the Company’s request, the Trustee will give the notice of redemption in the
Company’s name and at its expense; provided, however, that the Company has delivered to the Trustee, at least 45 days prior to the redemption date, an Officers’ Certificate requesting that the Trustee give such notice and setting
forth the information to be stated in such notice as provided in the preceding paragraph. 
 Section 3.04 Effect of Notice of
Redemption. 
 Subject to the provisions of Section 3.08 hereof, once notice of redemption is mailed in accordance with
Section 3.03 hereof, Notes called for redemption become irrevocably due and payable on the redemption date at the redemption price. A notice of redemption may not be conditional. 
 Section 3.05 Deposit of Redemption or Purchase Price. 
 One Business
Day prior to the redemption or purchase date, the Company will deposit with the Trustee or with the Paying Agent money sufficient to pay the redemption or purchase price of, and accrued interest, if any, on all Notes to be redeemed or purchased on
that date. The Trustee or the Paying Agent will promptly return to the Company any money deposited with the Trustee or the Paying Agent by the Company in excess of the amounts necessary to pay the redemption or purchase price of, and accrued
interest, if any, on all Notes to be redeemed or purchased. 
 If the Company complies with the provisions of the preceding
paragraph, on and after the redemption or purchase date, interest will cease to accrue on the Notes or the portions of Notes called for redemption or purchase. If a Note is redeemed or purchased on or after an interest record date but on or prior to
the related interest payment date, then any accrued and unpaid interest shall be paid to the Person in whose name such Note was registered at the close of business on such record date. If any Note called for redemption or purchase is not so paid
upon surrender for redemption or purchase because of the failure of the Company to comply with the preceding paragraph, interest shall be paid on the unpaid principal, from the redemption or purchase date until such principal is paid, and to the
extent lawful on any interest not paid on such unpaid principal, in each case at the rate provided in the Notes and in Section 4.01 hereof. 
 Section 3.06 Notes Redeemed or Purchased in Part. 
 Upon surrender of
a Note that is redeemed or purchased in part, the Company will issue and, upon receipt of an Authentication Order, the Trustee will authenticate for the Holder at the expense of the Company a new Note equal in principal amount to the unredeemed or
unpurchased portion of the Note surrendered. 
 Section 3.07 Optional Redemption. 

(a) At any time prior to April 15, 2015, the Company may on any one or more occasions redeem up to 35% of the aggregate principal
amount of Notes issued under this Indenture, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to 109.875% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to the date of
redemption (subject to the rights of Holders of Notes on the relevant record date to receive interest on the relevant interest payment date), with the net cash proceeds of an Equity Offering by the Company; provided that: 

(1) at least 65% of the aggregate principal amount of Notes originally issued under this Indenture (excluding Notes held
by the Company and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and 

  
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 (2) the redemption occurs within 45 days of the date of the closing of such
Equity Offering. 
 (b) At any time prior to April 15, 2015, the Company may on any one or more occasions redeem all or a
part of the Notes, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to 100% of the principal amount of the Notes redeemed, plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the
applicable date of redemption, subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date. 
 (c) Except pursuant to the preceding paragraphs, the Notes will not be redeemable at the Company’s option prior to April 15, 2015. 

(d) On or after April 15, 2015, the Company may on any one or more occasions redeem all or a part of the Notes, upon not less than
30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest, if any, on the Notes redeemed, to the applicable date of redemption, if redeemed during
the twelve-month period beginning on April 15 of the years indicated below, subject to the rights of Holders on the relevant record date to receive interest on the relevant interest payment date: 

 

					
	 Year
	  	Percentage	 
	 2015
	  	 	104.938	% 
	 2016
	  	 	102.469	% 
	 2017 and thereafter
	  	 	100.000	% 

 Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on the
Notes or portions thereof called for redemption on the applicable redemption date. 
 (e) Any redemption pursuant to this
Section 3.07 shall be made pursuant to the provisions of Sections 3.01 through 3.06 hereof. 
 Section 3.08 Escrow of Proceeds;
Mandatory Redemption. 
 Except as set forth below under clause (2) (“Special Redemption”) or
(3) (“Stage II Notes Exchange Redemption”), the Company is not required to make mandatory redemption or sinking fund payments with respect to the Notes. 

(1) Escrow of Proceeds. Upon closing of the initial purchase and sale of the Notes, (i) the Initial Purchasers
shall deposit into a trust account (the “Escrow Account”), which will be maintained with the Escrow Agent pursuant to the Escrow Agreement, the net proceeds from the sale of the Notes and (ii) the Company (or one of its
Affiliates) shall deposit with the Escrow Agent funds sufficient to pay the Special Redemption Price plus interest on the Notes through the latest permissible Special Redemption Date ((i) and (ii), collectively, the “Escrowed
Funds”). The Company will not be permitted to withdraw any Escrowed Funds from the Escrow Account except as expressly permitted by the Escrow Agreement. 

(2) Special Redemption. If the Merger shall not have occurred on or prior to the Termination Date (or the Merger
shall have been terminated or abandoned prior to such date), the Company shall, no later than the third Business Day following the Termination Date (or such earlier date on which the Merger shall have been terminated or abandoned), redeem all of the
Notes then outstanding (the “Special Redemption”) at a redemption price equal to 100.250% of the aggregate principal amount thereof (the “Special Redemption Price”), together with accrued

  
 40 

 
but unpaid interest (including, for the avoidance of doubt, pre-issuance interest) thereon from October 15, 2012 to the date of such redemption (the “Special Redemption
Date”) (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date). The Company shall calculate the total redemption amount due to Holders pursuant to the preceding
sentence and notify the Trustee of such amount prior to the Special Redemption Date. 
 The Company will pay,
through the Paying Agent, using the Escrowed Funds, such redemption price for all Notes together with accrued and unpaid interest to the Special Redemption Date. On and after the Special Redemption Date, interest will cease to accrue on Notes called
for redemption as long as the Company has deposited with the Paying Agent funds in satisfaction of such redemption price pursuant to this Indenture. 
 (3) Stage II Notes Exchange Redemption. If the Merger shall have occurred on or prior to the Termination Date, the Company shall, no later than the third Business Day following the consummation of
the Merger, redeem all of the Notes then outstanding (the “Stage II Notes Exchange Redemption”) at a redemption price equal to 100% of the aggregate principal amount thereof. Notwithstanding anything to the contrary in any Note or
this Indenture or any other document, the consideration paid to each Holder on the date of such Stage II Notes Exchange Redemption (the “Exchange Redemption Date”) to redeem its Notes shall only consist of Stage II Notes issued by
Heckmann (promptly following the merger of Rough Rider with and into Heckmann in accordance with the provisions of Section 5.01 hereof) in exchange for a like principal amount of such Notes and having the terms set forth in the Stage II
Indenture. Unless the Exchange Redemption Date is a scheduled interest payment date for the Notes, the Company shall not be obligated to pay to any Holder any accrued and unpaid interest to the Exchange Redemption Date in connection with the Stage
II Notes Exchange Redemption, which accrued and unpaid interest will be evidenced by the Stage II Notes issued to such Holder in exchange for its Notes (subject to the right of Holders of record on the relevant record date to receive interest due on
the relevant interest payment date). 
 The Company will only pay such redemption price for any Note through the
issuance of a Stage II Note having the same principal amount as such Note. Each Holder shall surrender all of its Notes upon issuance of a like principal amount of Stage II Notes in accordance with the preceding paragraph under this clause (3). On
and after the Exchange Redemption Date, interest will cease to accrue on Notes called for redemption and the Notes and this Indenture will be deemed to have been satisfied and discharged in full as long as Heckmann has issued to each Holder Stage II
Notes in accordance with the preceding paragraph under this clause (3). 
 Section 3.09 Offer to Purchase by Application of Excess
Proceeds. 
 In the event that, pursuant to Section 4.10 hereof, the Company is required to commence an offer to all
Holders to purchase Notes (an “Asset Sale Offer”), it will follow the procedures specified below. 
 The Asset
Sale Offer shall be made to all Holders and all holders of other Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in this Indenture with respect to offers to purchase, prepay or redeem with the
proceeds of sales of assets. The Asset Sale Offer will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business Days, except to the extent that a longer period is required by applicable law (the
“Offer Period”). No later than three Business Days after the termination of the Offer Period (the “Purchase Date”), the Company will apply all Excess Proceeds (the “Offer Amount”) to the purchase of
Notes and such other pari passu Indebtedness (on a pro rata basis based on the principal amount of Notes and such 

  
 41 

 
other pari passu Indebtedness surrendered, if applicable) or, if less than the Offer Amount has been tendered, all Notes and other Indebtedness tendered in response to the Asset Sale
Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made. 
 If the Purchase Date
is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest, if any, will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no
additional interest will be payable to Holders who tender Notes pursuant to the Asset Sale Offer. 
 Upon the commencement of an
Asset Sale Offer, the Company will send, by first class mail, a notice to the Trustee and each of the Holders, with a copy to the Trustee. The notice will contain all instructions and materials necessary to enable such Holders to tender Notes
pursuant to the Asset Sale Offer. The notice, which will govern the terms of the Asset Sale Offer, will state: 

(1) that the Asset Sale Offer is being made pursuant to this Section 3.09 and Section 4.10 hereof and the length
of time the Asset Sale Offer will remain open; 
 (2) the Offer Amount, the purchase price and the Purchase Date;

 (3) that any Note not tendered or accepted for payment will continue to accrue interest; 

(4) that, unless the Company defaults in making such payment, any Note accepted for payment pursuant to the Asset Sale
Offer will cease to accrue interest after the Purchase Date; 
 (5) that Holders electing to have a Note
purchased pursuant to an Asset Sale Offer may elect to have Notes purchased in denominations of $2,000 or an integral multiple of $1,000 in excess thereof; 
 (6) that Holders electing to have Notes purchased pursuant to any Asset Sale Offer will be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to
the Notes completed, or transfer by book-entry transfer, to the Company, a Depositary, if appointed by the Company, or a Paying Agent at the address specified in the notice at least three days before the Purchase Date; 

(7) that Holders will be entitled to withdraw their election if the Company, the Depositary or the Paying Agent, as the
case may be, receives, not later than the expiration of the Offer Period, a telegram, telex, facsimile transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement
that such Holder is withdrawing his election to have such Note purchased; 
 (8) that, if the aggregate principal
amount of Notes and other pari passu Indebtedness surrendered by holders thereof exceeds the Offer Amount, the Company will select the Notes and other pari passu Indebtedness to be purchased on a pro rata basis based on the
principal amount of Notes and such other pari passu Indebtedness surrendered (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or an integral multiple of $1,000 in excess
thereof, will be purchased); and 
 (9) that Holders whose Notes were purchased only in part will be issued new
Notes equal in principal amount to the unpurchased portion of the Notes surrendered (or transferred by book-entry transfer). 

  
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 On or before the Purchase Date, the Company will, to the extent lawful, accept for payment,
on a pro rata basis to the extent necessary, the Offer Amount of Notes or portions thereof tendered pursuant to the Asset Sale Offer, or if less than the Offer Amount has been tendered, all Notes tendered, and will deliver or cause to be
delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating that such Notes or portions thereof were accepted for payment by the Company in accordance with the terms of this Section 3.09. The
Company, the Depositary or the Paying Agent, as the case may be, will promptly (but in any case not later than five days after the Purchase Date) mail or deliver to each tendering Holder an amount equal to the purchase price of the Notes tendered by
such Holder and accepted by the Company for purchase, and the Company will promptly issue a new Note, and the Trustee, upon written request from the Company, will authenticate and mail or deliver (or cause to be transferred by book entry) such new
Note to such Holder, in a principal amount equal to any unpurchased portion of the Note surrendered. Any Note not so accepted shall be promptly mailed or delivered by the Company to the Holder thereof. The Company will publicly announce the results
of the Asset Sale Offer on the Purchase Date. 
 To the extent that the provisions of any securities laws or regulations
conflict with the provisions of this Section 3.09, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under this Section 3.09 by virtue of such compliance.

 Other than as specifically provided in this Section 3.09, any purchase pursuant to this Section 3.09 shall be made
pursuant to the provisions of Sections 3.01 through 3.06 hereof. 
 ARTICLE 4 

COVENANTS 
 Section 4.01
Payment of Notes. 
 The Company will pay or cause to be paid the principal of, premium on, if any, and interest, if any,
on, the Notes on the dates and in the manner provided in the Notes. Principal, premium, if any, and interest, if any, will be considered paid on the date due if the Paying Agent, if other than the Company or a Subsidiary thereof, holds as of 10:00
a.m. Eastern Time on the due date money deposited by the Company in immediately available funds and designated for and sufficient to pay all principal, premium, if any, and interest, if any, then due. 

The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at a
rate that is 1% higher than the then applicable interest rate on the Notes to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest, if any (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 will maintain in the Borough of Manhattan, the City of New York, an office or agency (which may be an office of
the Trustee or an affiliate of the Trustee, Registrar or co-registrar) where Notes may be surrendered for registration of transfer or for exchange and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be
served. The Company will 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 fails to maintain any such required office or agency or fails 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. 

  
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 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 time to time rescind such designations; provided, however, that no such designation or rescission will in any manner relieve the Company of its obligation to
maintain an office or agency in the Borough of Manhattan, the City of New York for such purposes. The Company will 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 designates the Corporate Trust Office of the Trustee as one such office or agency of the
Company in accordance with Section 2.03 hereof. 
 Section 4.03 Reports. 

(a) So long as any Notes are outstanding, the Company will furnish to the Holders of the Notes and the Trustee within the time periods
specified in the SEC’s rules and regulations for filing of periodic reports (x) for any period for which Heckmann is required to file periodic reports with the SEC, copies of such reports, and (y) for any period for which Heckmann is
not required to file such reports: 
 (1) quarterly and annual reports containing substantially all of the
information that would be required to be filed with the SEC on Forms 10-Q and 10-K if Heckmann were required to file such reports (including a “Management’s Discussion and Analysis of Financial Condition and Results of Operations”
and, with respect to annual reports, audited financial statements prepared in accordance with GAAP as in effect from time to time and, with respect to quarterly reports, unaudited quarterly financial statements prepared in accordance with GAAP as in
effect from time to time and reviewed pursuant to Statement on Auditing Standards No. 100 (or any successor provision); and 
 (2) current reports containing substantially all of the information that would be required to be filed with the SEC on Form 8-K if Heckmann were required to file such reports; provided, however,
that no such current report will be required to be furnished if Heckmann determines in its good faith judgment that such information is not material to the Holders or Notes or the business, assets, operations, financial position or prospects of
Heckmann and its Restricted Subsidiaries, taken as a whole. 
 Notwithstanding the foregoing clause (y), in no event will the
Company be required by this Indenture to (i) comply with Section 302 or Section 404 of the Sarbanes-Oxley Act of 2002, or related Items 307 and 308 of Regulation S-K, Item 10(e) of Regulation S-K (with respect to any non-GAAP
financial measures) or Regulation G, (ii) include the separate financial information for entities contemplated by Rule 3-10 and/or Rule 3-16 of Regulation S-X, (iii) provide information in respect of Item 402 of Regulation S-K or
(iv) provide exhibits that would be required for such reports. 
 (b) If Heckmann has designated any of its Subsidiaries as
Unrestricted Subsidiaries that, individually or in the aggregate, would constitute a Significant Subsidiary, then the quarterly and annual financial information required by Section 4.03(a)(1) hereof will include a reasonably detailed
presentation, either on the face of the financial statements or in the footnotes thereto, and in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of the financial condition and results of
operations of Heckmann and its Restricted Subsidiaries separate from the financial condition and results of operations of Heckmann’s Unrestricted Subsidiaries. 
 (c) The availability of the foregoing materials on the SEC’s EDGAR service (or any successor thereto) shall be deemed to satisfy the Company’s delivery obligation. 

  
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 (d) Notwithstanding anything to the contrary in the foregoing, if at any time any such
reports are not filed by Heckmann, or are not accepted by the SEC for any reason, for inclusion on the SEC’s EDGAR service (or any successor thereto), the Company will post such reports on a website no later than the date the Company is
required to provide those reports to the Trustee and the Holders of the Notes and maintain such posting for so long as any Notes remain outstanding. Access to such reports on such website may be subject to a confidentiality acknowledgment;
provided, that no other conditions, including password protection, may be imposed on access to such reports other than a representation by the Person accessing such reports that it is the Trustee, a Holder of the Notes, a Beneficial Owner of
the Notes, a bona fide prospective investor, a securities analyst or a market maker. 
 (e) In addition, for any period in which
Heckmann does not conduct an earnings conference call available to its public stockholders, the Company will, for so long as any Notes remain outstanding, use its commercially reasonable efforts to hold and participate in quarterly conference calls
with the Holders of the Notes, Beneficial Owners of the Notes, bona fide prospective investors, securities analysts and market makers to discuss such financial information no later than ten Business Days after distribution of such financial
information. 
 (f) Furthermore, the Company agrees that, for so long as any Notes remain outstanding, if at any time Heckmann
is no longer subject to the periodic reporting requirements of the Exchange Act for any reason, it will furnish to the Holders of the Notes, Beneficial Owners of the Notes, bona fide prospective investors, securities analysts and market makers, upon
their request, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act. 
 Delivery of
such reports, information and documents to the Trustee is for informational purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained
therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates) 
 Section 4.04 Compliance Certificate. 
 (a) The Company shall deliver
to the Trustee, within 90 days after the end of each fiscal year, commencing with the fiscal year ending December 31, 2012, an Officers’ Certificate stating that a review of the activities of the Company and its 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 has 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 on account of the principal of, premium on, if any, or interest, if any, on the Notes is 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) So long as any of the Notes are outstanding, the Company will deliver to the Trustee, forthwith upon any Officer becoming aware of any Default or Event of Default, an Officers’ Certificate
specifying such Default or Event of Default and what action the Company is taking or proposes to take with respect thereto. 

  
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 Section 4.05 Taxes. 
 The Company will pay, and will 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 of the Notes. 

Section 4.06 Stay, Extension and Usury Laws. 
 The Company covenants that it will 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 will
not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law has been enacted. 

Section 4.07 Restricted Payments. 
 (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly: 
 (1) declare or pay any dividend or make any other payment or distribution on account of the Company’s or any of its Restricted Subsidiaries’ Equity Interests (including, without limitation, any
payment in connection with any merger or consolidation involving the Company or any of its Restricted Subsidiaries) or to the direct or indirect holders of the Company’s or any of its Restricted Subsidiaries’ Equity Interests in their
capacity as such (other than dividends or distributions payable in Equity Interests (other than Disqualified Stock) of the Company and other than dividends or distributions payable to the Company or 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 involving the Company) any Equity Interests of the Company or any direct or indirect parent of the Company; 
 (3) make any payment on or with respect to, or purchase, redeem, defease or otherwise acquire or retire for value any Indebtedness of the Company that is contractually subordinated to the Notes (excluding
any intercompany Indebtedness between or among the Company and any of its Restricted Subsidiaries and excluding the purchase, repurchase or other acquisition of such subordinated Indebtedness in anticipation of satisfying a sinking fund obligation,
principal installment or final maturity, in each case due within one year of the date of such purchase, repurchase or other acquisition), except a payment of interest or principal at the Stated Maturity thereof; 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; 

  
 46 

 (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 beginning of the applicable four-quarter period, have been permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio
test set forth in Section 4.09(a) hereof; and 
 (3) such Restricted Payment, together with the aggregate
amount of all other Restricted Payments made by the Company and its Restricted Subsidiaries since the date of this Indenture (excluding Restricted Payments permitted by clauses (2), (3), (4), (5), (6), (7), (10), (11) and (13) of paragraph
(b) of this Section 4.07), 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 the beginning of the first fiscal quarter commencing after the date of this Indenture 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 and the Fair Market Value of any marketable securities or other property
received by the Company since the date of this Indenture 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 of the Company or convertible or exchangeable debt securities of the Company, in each case that have been converted into or exchanged for Equity Interests of the Company (other than Equity Interests and convertible or
exchangeable 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 the date of this Indenture is (a) sold for cash or Cash Equivalents or otherwise cancelled, liquidated or repaid for cash or Cash Equivalents, or (b) made in an entity that
subsequently becomes a Restricted Subsidiary of the Company, the initial amount of such Restricted Investment (or, if less, the amount of cash or Cash Equivalents received upon repayment or sale); plus 

(D) to the extent that any Unrestricted Subsidiary of the Company designated as such after the date of this Indenture is
redesignated as a Restricted Subsidiary after the date of this Indenture, the Fair Market Value of the Company’s Restricted Investment in such Subsidiary as of the date of such redesignation; plus 

(E) all dividends, interest, repayments of loans or advances, intercompany loan payments or other distributions received
in cash or Cash Equivalents by the Company or a Restricted Subsidiary of the Company after the date of this Indenture from an Unrestricted Subsidiary of the Company, to the extent that such dividends, payments or distributions were not otherwise
included in the Consolidated Net Income of the Company for such period. 
 (b) The provisions of Section 4.07(a) hereof
will not prohibit: 
 (1) the payment of any dividend or the consummation of any irrevocable redemption within 60
days after the date of declaration of the dividend or giving of the redemption notice, as the case may be, if at the date of declaration or notice, the dividend or redemption payment would have complied with the provisions of this Indenture;

  
 47 

 (2) the making of any Restricted Payment in exchange for, or out of or with
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) or from the substantially concurrent contribution of common equity capital to
the Company; provided that the amount of any such net cash proceeds that are utilized for any such Restricted Payment will not be considered to be net proceeds of Equity Interests for purposes of Section 4.07(a)(3)(B) hereof and will not
be considered to be net cash proceeds from an Equity Offering for purposes of Section 3.07 of this Indenture; 
 (3) the payment of any dividend (or, in the case of any partnership or limited liability company, any similar distribution) by a Restricted Subsidiary of the Company to the holders of its Equity Interests
on a pro rata basis; 
 (4) the repurchase, redemption, defeasance or other acquisition or retirement for
value of Indebtedness of the Company that is contractually subordinated to the Notes with the net cash proceeds from a substantially concurrent incurrence of Permitted Refinancing Indebtedness; 

(5) so long as no Default or Event of Default has occurred and is continuing, the repurchase, redemption 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 officer, director or employee of the Company or any of its Restricted Subsidiaries pursuant to any
equity subscription agreement, stock option agreement, shareholders’ agreement or similar agreement; provided that the aggregate price paid for all such repurchased, redeemed, acquired or retired Equity Interests may not exceed $2.5
million in any twelve-month period; provided further that the Company may carry over and make in subsequent twelve-month periods, in addition to the amounts permitted for such twelve-month period, up to $2.5 million of unutilized capacity
under this clause (5) attributable to the immediately preceding twelve-month period; 
 (6) the repurchase
of Equity Interests deemed to occur upon the exercise of stock options to the extent such Equity Interests represent a portion of the exercise price of those stock options; 

(7) so long as no Default or Event of Default has occurred and is continuing, the declaration and payment of regularly
scheduled or accrued dividends to holders of any class or series of Disqualified Stock of the Company or any preferred stock of any Restricted Subsidiary of the Company issued on or after the date of this Indenture in accordance with the Fixed
Charge Coverage Ratio test described in Section 4.09(a) hereof; 
 (8) so long as no Default or Event of
Default has occurred and is continuing, the repurchase by the Company or any Restricted Subsidiary of Equity Interests of the Company in accordance with any stock repurchase program authorized by the Board of Directors of the Company not to exceed
$3.0 million in any twelve-month period; provided, that the Company may carry over and make in subsequent twelve-month periods, in addition to the amounts permitted for such twelve-month period, up to $3.0 million of unutilized capacity under
this clause (8) attributable to the immediately preceding twelve-month period; provided further, that, at the time of any such purchase the Company would be able to incur $1.00 of Indebtedness pursuant to Section 4.09(a) hereof;

  
 48 

 (9) payments or distributions to shareholders exercising appraisal or
discount rights pursuant to applicable law pursuant to or in connection with a merger, consolidation or transfer of all or substantially all of the Company’s or its Restricted Subsidiaries’ assets that complies with the provisions of this
Indenture; 
 (10) in the event of a Change of Control, and if no Default or Event of Default shall have occurred
and be continuing, the payment, purchase, redemption, defeasance or other acquisition or retirement of Indebtedness of the Company that is subordinated or junior in right of payment to the Notes, in each case, at a purchase price not greater than
101% of the principal amount of such Indebtedness, plus any accrued and unpaid interest thereon; provided that all Notes tendered by holders in connection with a Change of Control Offer have been repurchased, redeemed or acquired for value;

 (11) in the event of an Asset Sale which requires the Company to make an Asset Sale Offer, and if no Default
or Event of Default shall have occurred and be continuing, the payment, purchase, redemption, defeasance or other acquisition or retirement of Indebtedness of the Company that is subordinated or junior in right of payment to the Notes, in each case,
at a purchase price not greater than 100% of the principal amount of such Indebtedness, plus any accrued and unpaid interest thereon; provided that all Notes tendered by Holders in connection with an Asset Sale Offer have been repurchased,
redeemed or acquired for value; 
 (12) the purchase, redemption, acquisition, cancellation or other retirement
for a nominal value per right of any rights granted to all the holders of the Company’s Capital Stock pursuant to any shareholders’ rights plan adopted for the purpose of protecting shareholders from unfair takeover practices;
provided that any such purchase, redemption, acquisition, cancellation or other retirement of such rights shall not be for the purpose of evading the limitations of this covenant (as determined in good faith by the Board of Directors of the
Company); 
 (13) payments of cash, dividends, distributions, advances or other Restricted Payments by the
Company or any of its Restricted Subsidiaries to allow the payment of cash in lieu of the issuance of fractional shares upon (i) the exercise of options or warrants or (ii) the conversion or exchange of Capital Stock of any such Person;
and 
 (14) so long as no Default or Event of Default has occurred and is continuing, other Restricted Payments
in an aggregate amount not to exceed $25.0 million since the date of this Indenture. 
 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 by the Board of Directors of the Company whose resolution with respect thereto will be delivered to the Trustee;
provided that, in lieu thereof, in the case of assets or securities of $20.0 million or less, such determination may be made by the Chief Financial Officer of the Company as set forth in a certificate delivered to the Trustee. The
determination of the Board of Directors of the Company must be based upon an opinion or appraisal issued by an accounting, appraisal or investment banking firm of national standing if the Fair Market Value exceeds $30.0 million. 

  
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 Notwithstanding the foregoing or anything else to the contrary contained in this Indenture,
prior to the completion of the Special Redemption or the merger of Rough Rider with and into Heckmann upon completion of the Merger, the Company will not make a Restricted Payment under any circumstances. 

Section 4.08 Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries. 

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create or permit to exist or
become effective any consensual encumbrance or restriction on the ability of any Restricted Subsidiary to: 
 (1)
pay dividends or make any other distributions on its Capital Stock to the Company or any of its Restricted Subsidiaries, or with respect to any other interest or participation in, or measured by, its profits, or pay any indebtedness owed to the
Company or any of its Restricted Subsidiaries; 
 (2) make loans or advances to the Company or any of its
Restricted Subsidiaries; or 
 (3) sell, lease or transfer any of its properties or assets to the Company or any
of its Restricted Subsidiaries. 
 (b) The restrictions in Section 4.08(a) hereof will not apply to encumbrances or
restrictions existing under or by reason of: 
 (1) agreements governing Existing Indebtedness and Credit
Facilities as in effect on the date of the Stage II Indenture and any amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings of those agreements; provided that the amendments, restatements,
modifications, renewals, supplements, refundings, replacements or refinancings are not materially more restrictive, taken as a whole, with respect to such dividend and other payment restrictions than those contained in those agreements on the date
of the Stage II Indenture; 
 (2) this Indenture and the Notes; 

(3) agreements governing other Indebtedness permitted to be incurred under Section 4.09 hereof and any amendments,
restatements, modifications, renewals, supplements, refundings, replacements or refinancings of those agreements; provided that (except with respect to Indebtedness incurred pursuant to clause (16) of Section 4.09(b) hereof) the
restrictions therein are not materially more restrictive, taken as a whole, than those contained in this Indenture and the Notes; 
 (4) applicable law, rule, regulation or order; 
 (5) any instrument
governing Indebtedness or Capital Stock of a Person acquired by the Company or any of its Restricted Subsidiaries as in effect at the time of such acquisition (except to the extent such Indebtedness or Capital Stock was incurred in connection with
or in contemplation of such acquisition), which encumbrance or restriction is not applicable to any Person, or the properties or assets of any Person, other than the Person, or the property or assets of the Person, so acquired; provided that,
in the case of Indebtedness, such Indebtedness was permitted by the terms of this Indenture to be incurred; 

  
 50 

 (6) customary non-assignment provisions in contracts and licenses entered
into in the ordinary course of business; 
 (7) purchase money obligations for property acquired in the ordinary
course of business and Capital Lease Obligations that impose restrictions on the property purchased or leased of the nature described in clause (4) of Section 4.09(b) hereof; 

(8) any agreement for the sale or other disposition of a Restricted Subsidiary that restricts distributions by that
Restricted Subsidiary pending such sale or other disposition; 
 (9) 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; 
 (10) Liens 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; 
 (11) provisions limiting the
disposition or distribution of assets or property in joint venture agreements, asset sale agreements, sale-leaseback agreements, stock sale agreements and other similar agreements (including agreements entered into in connection with a Restricted
Investment) entered into with the approval of the Company’s Board of Directors, which limitation is applicable only to the assets that are the subject of such agreements; and 

(12) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary
course of business. 
 Section 4.09 Incurrence of Indebtedness and Issuance of Preferred Stock. 

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, incur, issue,
assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise, with respect to (collectively, “incur”) any Indebtedness (including Acquired Debt), and the Company will not issue any Disqualified
Stock and will not permit any of its Restricted Subsidiaries to issue any shares of preferred stock; provided, however, that the Company may incur Indebtedness (including Acquired Debt) or issue Disqualified 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
such preferred stock is issued, as the case may be, 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 the
Disqualified Stock or the preferred stock had been issued, as the case may be, at the beginning of such four-quarter period. 

(b) The provisions of Section 4.09(a) hereof will not prohibit the incurrence of any of the following items of Indebtedness
(collectively, “Permitted Debt”): 
 (1) the incurrence by the Company of additional
Indebtedness and letters of credit under 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 potential
liability of the Company and its Restricted Subsidiaries thereunder) not to exceed the greater of (i) $150.0 million and (ii) the amount of secured Indebtedness that could be incurred such that giving effect to such incurrence the
Consolidated Secured Leverage Ratio would be no greater than 2.0 to 1.0; for the most recent four-quarter period for which internal financial statements are available; 

  
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 (2) the incurrence by the Company and its Restricted Subsidiaries of the
Existing Indebtedness; 
 (3) the incurrence by the Company of Indebtedness represented by the Notes to be issued
on the date of this Indenture; 
 (4) the incurrence by the Company or any of its Restricted Subsidiaries of
Indebtedness represented by Capital Lease Obligations, mortgage financings, project financings or purchase money obligations (including without limitation all or any part of the purchase price or cost of transportation assets including trucks,
trailers and rail cars, used in the business of the Company or any of its Restricted Subsidiaries); and, 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 the business of the Company or any of its Restricted Subsidiaries, in an aggregate principal amount (or accreted value, as applicable), 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, at any one time outstanding, the greater of (i) $50.0 million and (ii) 10% of the Company’s Total Assets;

 (5) the incurrence by the Company or any of its Restricted Subsidiaries of Permitted Refinancing Indebtedness
in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge any Indebtedness (other than intercompany Indebtedness) that was permitted by this Indenture to be incurred under Section 4.09(a)
hereof or clauses (2), (3), (4), (5) or (16) of this Section 4.09(b); 
 (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 the payee is not the Company, such Indebtedness must be
unsecured and expressly subordinated to the prior payment in full in cash of all Obligations then due with respect to the Notes; and 
 (B) (1) 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
(2) any sale or other transfer of any such Indebtedness to a Person that is not either the Company or 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 of the Company’s Restricted Subsidiaries to the Company or to any of its Restricted
Subsidiaries of shares of preferred stock; provided, however, that: 
 (A) any subsequent issuance or
transfer of Equity Interests that results in any such preferred stock being held by a Person other than the Company or a Restricted Subsidiary of the Company; and 

  
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 (B) any sale or other transfer of any such preferred stock to a Person that
is not either the Company or a Restricted Subsidiary of the Company, 
 will be deemed, in each case, to constitute an issuance
of such preferred stock by such Restricted Subsidiary that was not permitted by this clause (7); 
 (8) the
incurrence by the Company or any of its Restricted Subsidiaries of Hedging Obligations in the ordinary course of business (including under Credit Facilities); 
 (9) the guarantee by the Company of Indebtedness of the Company or a Restricted Subsidiary of the Company to the extent that the guaranteed Indebtedness was permitted to be incurred by another provision
of this Section 4.09; provided that if the Indebtedness being guaranteed is subordinated to or pari passu with the Notes, then the Guarantee must be subordinated or pari passu, as applicable, to the same extent as the
Indebtedness guaranteed; 
 (10) the incurrence by the Company or any of its Restricted Subsidiaries of
Indebtedness in respect of workers’ compensation claims, self-insurance obligations, bankers’ acceptances, performance and surety bonds in the ordinary course of business; 

(11) the incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness arising from the honoring by a
bank or other financial institution of a check, draft or similar instrument inadvertently drawn against insufficient funds, so long as such Indebtedness is covered within five Business Days; 

(12) Indebtedness of a Restricted Subsidiary incurred and outstanding on or prior to the date on which such Restricted
Subsidiary was acquired by the Company or another Restricted Subsidiary (other than Indebtedness incurred in contemplation of, or in connection with, the transaction or series of related transactions pursuant to which such Restricted Subsidiary
became a Restricted Subsidiary of or was otherwise acquired by the Company or another Restricted Subsidiary); provided that the Company or such Restricted Subsidiary would have been able to incur such Indebtedness at the time of such
acquisition pursuant to Section 4.09(a) hereof; 
 (13) Indebtedness arising from agreements of the Company
or a Restricted Subsidiary providing for indemnification, adjustment of purchase price or similar obligations, in each case incurred or assumed in connection with the disposition of any assets or property or Capital Stock of a Restricted Subsidiary,
and not exceeding the Fair Market Value of the consideration received by the Company or any Restricted Subsidiary in respect thereof; 
 (14) the incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness represented by letters of credit (or guarantees thereof) entered into in the ordinary course of business to the
extent that such letters of credit are (a) fully cash collateralized in an aggregate amount not to exceed $3.0 million or (b) not drawn upon or, if and to the extent drawn upon, such drawing is reimbursed no later than the tenth Business
Day following a demand for reimbursement following payment on the letter of credit; provided that such letters of credit shall not constitute Permitted Debt pursuant to this clause (14) if they are issued in support of Indebtedness;

 (15) any earn-out or similar provision existing at the date of the Stage II Indenture or in connection with
any Permitted Investment or Asset Sale; and 

  
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 (16) the incurrence by the Company or any of its Restricted Subsidiaries of
additional Indebtedness in an aggregate principal amount (or accreted value, as applicable) at any one time outstanding, including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any
Indebtedness incurred pursuant to this clause (16), not to exceed $35.0 million. 
 The Company will not incur any Indebtedness
(including Permitted Debt) that is contractually subordinated in right of payment to any other Indebtedness of the Company unless such Indebtedness is also contractually subordinated in right of payment to the Notes on substantially identical terms;
provided, however, that no Indebtedness will be deemed to be contractually subordinated in right of payment to any other Indebtedness solely by virtue of being unsecured or by virtue of being secured on a junior priority basis. 

For purposes of determining compliance with this Section 4.09, in the event that an item of Indebtedness meets the criteria of more
than one of the categories of Permitted Debt described in clauses (1) through (16) above, or is entitled to be incurred pursuant to Section 4.09(a) hereof, the Company will be permitted to classify such item of Indebtedness on the
date of its incurrence, or later reclassify all or a portion of such item of Indebtedness, in any manner that complies with this Section 4.09. Indebtedness under Credit Facilities outstanding on the date of the Stage II Indenture will initially
be deemed to have been incurred on such date in reliance on the exception provided by clause (1) of the definition of Permitted Debt. Indebtedness permitted by this covenant need not be permitted solely by reference to one provision permitting
such Indebtedness but may be permitted in part by one such provision and in part by one or more other provisions of this Section 4.09 permitting such Indebtedness. The accrual of interest or preferred stock dividends, the accretion or
amortization of original issue discount, the payment of interest on any Indebtedness in the form of additional Indebtedness with the same terms, the reclassification of preferred stock as Indebtedness due to a change in accounting principles, and
the payment of dividends on preferred stock or Disqualified Stock in the form of additional shares of the same class of preferred stock or Disqualified Stock will not be deemed to be an incurrence of Indebtedness or an issuance of preferred stock or
Disqualified 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. For purposes of determining compliance with any U.S. dollar-denominated
restriction on the incurrence of Indebtedness, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be utilized, calculated based on the relevant currency exchange rate in effect on the date such
Indebtedness was incurred; provided that if such Indebtedness is incurred to refinance other Indebtedness denominated in a foreign currency, and such refinancing would cause the applicable U.S. dollar-denominated restriction to be exceeded if
calculated at the relevant currency exchange rate in effect on the date of such refinancing, such U.S. dollar-denominated restriction shall be deemed not to have been exceeded so long as the principal amount of such refinancing Indebtedness does not
exceed the principal amount of such Indebtedness being refinanced. Notwithstanding any other provision of this Section 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 to be exceeded solely as a result of fluctuations in exchange rates or currency values. 

Notwithstanding the foregoing or anything else to the contrary contained in this Indenture, prior to the completion of the Special
Redemption or the merger of Rough Rider with and into Heckmann upon completion of the Merger, the Company will not incur any Indebtedness, other than the Notes, or issue any Disqualified Stock under any circumstances. 

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;

  
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 (2) the principal amount of the Indebtedness, in the case of any other
Indebtedness; and 
 (3) in respect of Indebtedness of another Person secured by a Lien on the assets of the
specified Person, the lesser of: 
 (A) the Fair Market Value of such assets at the date of determination; and

 (B) the amount of the Indebtedness of the other Person. 

Section 4.10 Asset Sales. 
 (a) 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 (measured as of the date of the definitive agreement with respect to such Asset Sale) of the assets or Equity Interests issued or sold or otherwise disposed of; and 

(2) 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 provision, each of the following will be deemed to be cash: 
 (A) any liabilities, as shown on the Company’s most recent consolidated balance sheet, of the Company or any Restricted Subsidiary (other than contingent liabilities and liabilities that are by their
terms subordinated to the Notes) that are assumed by the transferee of any such assets pursuant to a customary novation or indemnity agreement that releases the Company or such Restricted Subsidiary from or indemnifies against further liability;

 (B) any securities, notes or other obligations received by the Company or any such Restricted Subsidiary from
such transferee that are contemporaneously, subject to ordinary settlement periods, converted by the Company or such Restricted Subsidiary into cash or Cash Equivalents, to the extent of the cash or Cash Equivalents received in that conversion; and

 (C) any stock or assets of the kind referred to in clauses (2) or (4) of the next paragraph of this
Section 4.10. 
 (b) Within 365 days after the receipt of any Net Proceeds from an Asset Sale, the Company (or the
applicable Restricted Subsidiary, as the case may be) may apply such Net Proceeds: 
 (1) to repay Indebtedness
and other Obligations under a Credit Facility that are secured by a Lien and, if the Indebtedness repaid is revolving credit Indebtedness that is permanently repaid, to correspondingly reduce commitments with respect thereto; 

  
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 (2) to acquire all or substantially all of the assets of, or any Capital
Stock of, another Permitted Business, if, after giving effect to any such acquisition of Capital Stock, the Permitted Business is or becomes a Restricted Subsidiary of the Company; 

(3) to make a capital expenditure; or 

(4) to acquire other assets that are not classified as current assets under GAAP and that are used or useful in a
Permitted Business. 
 Pending the final application of any Net Proceeds, the Company (or the applicable Restricted Subsidiary) may temporarily
reduce revolving credit borrowings or otherwise invest the Net Proceeds in any manner that is not prohibited by this Indenture. 

(c) Any Net Proceeds from Asset Sales that are not applied or invested as provided in Section 4.10(b) hereof will constitute
“Excess Proceeds.” When the aggregate amount of Excess Proceeds exceeds $25.0 million, within ten days thereof, the Company will make an Asset Sale Offer to all Holders of Notes and all holders of other Indebtedness that is pari
passu with the Notes containing provisions similar to those set forth in this Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets in accordance with Section 3.09 hereof to purchase, prepay or
redeem the maximum principal amount of Notes and such other pari passu Indebtedness (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in connection therewith) that may be
purchased, prepaid or redeemed out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to the date of purchase, prepayment or redemption, subject to
the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment 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 (or required to be prepaid or redeemed in connection with) such Asset Sale
Offer exceeds the amount of Excess Proceeds, the Trustee (or Depositary) will select the Notes and the applicable party shall select such other pari passu Indebtedness to be purchased on a pro rata basis (subject to Applicable
Procedures), based on the amounts tendered or required to be prepaid or redeemed (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or an 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. 
 (d) The
Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with each repurchase of Notes pursuant to
an Asset Sale Offer. To the extent that the provisions of any securities laws or regulations conflict with 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 this Section 4.10 by virtue of such compliance. 
 Section 4.11 Transactions with Affiliates. 

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, make any payment to or sell, lease, transfer or
otherwise dispose of any of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction, contract, agreement, understanding, loan, advance or Guarantee with, or for the benefit of, any
Affiliate of the Company (each, an “Affiliate Transaction”) involving aggregate payments or consideration in excess of $2.5 million, unless: 
 (1) the Affiliate Transaction is on terms that are no less favorable to the Company or the relevant Restricted Subsidiary than those that would have been obtained in a comparable transaction by the
Company or such Restricted Subsidiary with an unrelated Person; and 

  
 56 

 (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 $5.0 million, a resolution of the Board of Directors of the Company set forth in an Officers’ Certificate certifying that such Affiliate Transaction complies with clause (1) of this Section 4.11(a); and

 (B) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate
consideration in excess of $20.0 million, a resolution adopted by the Board of Directors of the Company set forth in an Officer’s Certificate certifying that such Affiliate Transaction complies with this Section 4.11 and that such
Affiliate Transaction has been approved by a majority of the disinterested members of the Board of Directors of the Company; and 
 (C) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of $30.0 million, the Company has received an opinion as to the
fairness to the Company or such Restricted Subsidiary of such Affiliate Transaction from a financial point of view issued by an accounting, appraisal or investment banking firm of national standing. 

(b) The following items will not be deemed to be Affiliate Transactions and, therefore, will not be subject to the provisions of
Section 4.11(a) hereof: 
 (1) any employment agreement, employee benefit plan (including any stock option
or stock purchase plan), officer or director indemnification agreement, employee or director compensation or fees or any similar arrangement entered into by the Company or any of its Restricted Subsidiaries in the ordinary course of business and
payments pursuant thereto; 
 (2) transactions between or among the Company and/or its Restricted Subsidiaries;

 (3) transactions with a Person (other than an Unrestricted Subsidiary of the Company) that is an Affiliate of
the Company solely because the Company owns, directly or through a Restricted Subsidiary, an Equity Interest in, or controls, such Person; 
 (4) payment of reasonable and customary fees and reimbursements of expenses (pursuant to indemnity arrangements or otherwise) of officers, directors, employees or consultants of the Company or any of its
Restricted Subsidiaries; 
 (5) any issuance of Equity Interests (other than Disqualified Stock) of the Company
to Affiliates of the Company; 
 (6) Restricted Payments that do not violate Section 4.07 hereof;

 (7) Permitted Investments (excluding Permitted Investments in Affiliates that are not the Company or a
Restricted Subsidiary); 

  
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 (8) any transaction between or among the Company and any Restricted
Subsidiary, on the one hand, with Unrestricted Subsidiaries of the Company, on the other hand, including the provision of legal, administrative, accounting, appraisal or other services on substantially the same terms as provided to or by the Company
and its Restricted Subsidiaries; 
 (9) payment of consolidated taxes by the Company or a Restricted Subsidiary
on behalf of Unrestricted Subsidiaries; 
 (10) loans or advances to employees in the ordinary course of business
not to exceed $5.0 million in the aggregate at any one time outstanding; 
 (11) any transaction which has been
determined, in the opinion of an independent accounting, appraisal or investment banking firm of national standing, to be fair, from a financial point of view, to the Company or the applicable Restricted Subsidiary; and 

(12) the merger of Rough Rider with and into Heckmann in accordance with the provisions of Section 5.01 hereof and
the consummation of the Stage II Notes Exchange Redemption in accordance with the provisions of Section 3.08 hereof. 
 Section 4.12
Liens. 
 The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly,
create, incur, assume or suffer to exist any Lien of any kind securing Indebtedness, or trade payables on any asset now owned or hereafter acquired, except Permitted Liens. 
 Section 4.13 Business Activities. 
 The Company will not, and will not
permit any of its Restricted Subsidiaries to, engage in any business other than Permitted Businesses, except to such extent as would not be material to the Company and its Restricted Subsidiaries taken as a whole. 

Section 4.14 Corporate Existence. 
 Subject to Article 5 hereof, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect: 

(1) its corporate (except as permitted by Section 5.01(1)(B) hereof) 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 Restricted Subsidiary; and 

(2) the rights (charter and statutory), licenses and franchises of the Company and its Restricted Subsidiaries;
provided, however, that the Company shall not be required to preserve any such right, license or franchise, or the corporate, partnership or other existence of any of its Restricted Subsidiaries, if the Board of Directors of 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 of the
Notes. 

  
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 Section 4.15 Offer to Repurchase Upon Change of Control. 

(a) Upon the occurrence of a Change of Control, the Company will make an offer (a “Change of Control Offer”) to each
Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes at a purchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and
unpaid interest, if any, on the Notes repurchased to the date of purchase, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date (the “Change of Control
Payment”). Within 20 days following any Change of Control, the Company will mail a notice to each Holder describing the transaction or transactions that constitute the Change of Control and stating: 

(1) that the Change of Control Offer is being made pursuant to this Section 4.15 and that all Notes tendered will be
accepted for payment; 
 (2) the purchase price and the purchase date, which shall be no earlier than 30 days and
no later than 60 days from the date such notice is mailed (the “Change of Control Payment Date”); 
 (3) that any Note not tendered will continue to accrue interest; 

(4) that, unless the Company defaults in the payment of the Change of Control Payment, all Notes accepted for payment
pursuant to the Change of Control Offer will cease to accrue interest after the Change of Control Payment Date; 

(5) that Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender
the Notes, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by book-entry transfer, to the Paying Agent at the address specified in the notice prior to the close of business on the
third Business Day preceding the Change of Control Payment Date; 
 (6) that Holders will be entitled to withdraw
their election if the Paying Agent receives, not later than the close of business on the second Business Day preceding the Change of Control Payment Date, a telegram, telex, facsimile transmission or letter setting forth the name of the Holder, the
principal amount of Notes delivered for purchase, and a statement that such Holder is withdrawing his election to have the Notes purchased; and 
 (7) 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 an integral multiple of $1,000 in excess thereof. 
 The Company will comply with the
requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control. To
the extent that the provisions of any securities laws or regulations conflict with the provisions of this Section 4.15, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its
obligations under this Section 4.15 by virtue of such compliance. 
 (b) On the Change of Control Payment Date, the Company
will, to the extent lawful: 
 (1) accept for payment all Notes or portions of Notes properly tendered pursuant
to the Change of Control Offer; 

  
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 (2) deposit with the Paying Agent an amount equal to the Change of Control
Payment in respect of all Notes or portions of Notes properly tendered; and 
 (3) deliver or cause to be
delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Company. 

The Paying Agent will promptly mail (but in any case not later than five days after the Change of Control Payment Date) to each Holder of
Notes properly tendered the Change of Control Payment for such Notes, and the Trustee will promptly authenticate and mail (or cause to be transferred by book entry) to each Holder a new Note equal in principal amount to any unpurchased portion of
the Notes surrendered, if any. The Company will publicly announce the results of the Change of Control Offer on or as soon as practicable after the Change of Control Payment Date. 

(c) Notwithstanding anything to the contrary in this Section 4.15, the Company will not be required to make a Change of Control
Offer upon a Change of Control if (1) a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 4.15 and purchases all Notes properly tendered
and not withdrawn under the Change of Control Offer, or (2) notice of redemption has been given pursuant to Section 3.07 hereof, unless and until there is a default in payment of the applicable redemption price. 

(d) Notwithstanding anything to the contrary contained herein, a Change of Control Offer may be made in advance of a Change of Control,
conditioned upon the consummation of such Change of Control, if a definitive agreement is in place for the Change of Control at the time the Change of Control Offer is made. 
 Section 4.16 Payments for Consent. 
 The Company will not, and will
not permit any of its Restricted Subsidiaries to, directly or indirectly, pay or cause to be paid any consideration to or for the benefit of any Holder of Notes for or as an inducement to any consent, waiver or amendment of any of the terms or
provisions of this Indenture or the Notes unless such consideration is offered to be paid and is paid to all Holders of the Notes that consent, waive or agree to amend in the time frame set forth in the solicitation documents relating to such
consent, waiver or agreement. 
 Section 4.17 Designation of Restricted and Unrestricted Subsidiaries. 

The Board of Directors of the Company may designate any Restricted Subsidiary to be an Unrestricted Subsidiary if that designation would
not cause a Default; provided that, if they are or becomes Subsidiaries of the Company, in no event will all or substantially all of the businesses currently operated by Heckmann Water Resources (CVR), Inc. or Thermo Fluids Inc. be
transferred to or held by an Unrestricted Subsidiary. If a Restricted Subsidiary is designated as an Unrestricted Subsidiary, the aggregate Fair Market Value of all outstanding Investments owned by the Company and its Restricted Subsidiaries in the
Subsidiary designated as Unrestricted will be deemed to be an Investment made as of the time of the designation and will reduce the amount available for Restricted Payments under Section 4.07 hereof or under one or more clauses of the
definition of Permitted Investments, as determined by the Company. That designation will only be permitted if the Investment would be permitted at that time and if the Restricted Subsidiary otherwise meets the definition of an Unrestricted
Subsidiary. The Board of Directors of the Company may redesignate any Unrestricted Subsidiary to be a Restricted Subsidiary if that redesignation would not cause a Default. 

  
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 Any designation of a Subsidiary of the Company as an Unrestricted Subsidiary will be
evidenced to the Trustee by filing with the Trustee a certified copy of a resolution of the Board of Directors of the Company giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the
preceding conditions and was permitted by Section 4.07 hereof. 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 hereof, the Company will be in default of such covenant. The Board of Directors of the Company may at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary 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 Section 4.09 hereof, calculated on a pro forma basis as if such designation had occurred at the beginning of the applicable four-quarter reference period; and (2) no Default or Event of Default would be in existence
following such designation. 
 Notwithstanding the foregoing or anything else to the contrary contained in this Indenture, as of
the date of this Indenture, the Company has no Subsidiaries and, prior to the completion of the Special Redemption or the merger of Rough Rider with and into Heckmann upon completion of the Merger, will not create any Subsidiaries. 

ARTICLE 5 

SUCCESSORS 
 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 corporation); or (2) sell, assign, transfer, 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: 
 (1) either:

 (A) the Company is the surviving corporation; or 

(B) the Person formed by or surviving any such consolidation or merger (if other than the Company) or to which such sale,
assignment, transfer, conveyance or other disposition has been made is an entity organized or existing under the laws of the United States, any state of the United States or the District of Columbia; and, if such entity is not a corporation, a
co-obligor of the Notes is a corporation organized or existing under any such laws; 
 (2) 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, conveyance or other disposition has been made assumes all the obligations of the Company under the Notes and this
Indenture pursuant to agreements reasonably satisfactory to the Trustee; 
 (3) immediately after such
transaction, no Default or Event of Default exists; and 

  
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 (4) the Company or the Person formed by or surviving any such consolidation
or merger (if other than the Company), or to which such sale, assignment, transfer, conveyance or other disposition has been made, on the date of such transaction after giving pro forma effect thereto and any related financing transactions as if the
same had occurred at the beginning of the applicable four-quarter period, (a) would be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.09(a) hereof, or
(b) would have had a Fixed Charge Coverage Ratio greater than the actual Fixed Charge Coverage Ratio for the Company immediately prior to such transaction. 
 In addition, the Company will not, directly or indirectly, lease all or substantially all of the properties and assets of it and its Restricted Subsidiaries taken as a whole, in one or more related
transactions, to any other Person. 
 Clauses (3) and (4) of this Section 5.01 will not apply to any merger or consolidation of
the Company (a) with or into one of its Restricted Subsidiaries for any purpose, (b) with or into an Affiliate solely for the purpose of reincorporating the Company in another jurisdiction or (c) with and into Heckmann in connection
with the consummation of the Merger. 
 Section 5.02 Successor Corporation Substituted. 

Upon any consolidation or merger, or any sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all
of the properties or assets of the Company in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof, the successor Person formed by such consolidation or into or with which the Company is merged or to
which such sale, assignment, transfer, lease, conveyance or other disposition is made shall succeed to, and be substituted for (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 Person and not to the Company), and may exercise every right and power of the Company under this Indenture with the same effect
as if such successor Person had been named as the Company herein; provided, however, that the predecessor Company shall not be relieved from the obligation to pay the principal of, premium on, if any, and interest, if any, on, the Notes
except in the case of a sale of all of the Company’s assets in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof. 
 ARTICLE 6 
 DEFAULTS AND REMEDIES 

Section 6.01 Events of Default. 
 Each of the following is an “Event of Default”: 

(1) default for 30 days in the payment when due of interest, if any, on the Notes; 

(2) default in the payment when due (at maturity, upon redemption or otherwise) of the principal of, or premium, if any,
on the Notes; 
 (3) failure by the Company or any of its Restricted Subsidiaries to comply with the provisions
of Sections 4.10, 4.15 or 5.01 hereof; 
 (4) failure by the Company or any of its Restricted Subsidiaries for 60
days after notice to the Company by the Trustee or the Holders of at least 25% in aggregate principal 

  
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amount of the Notes then outstanding voting as a single class to comply with any of the agreements in this Indenture (other than a default referred to in clause (1), (2) or (3) of this
Section 6.01); 
 (5) 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 date of this Indenture, if that default: 
 (A) is
caused by a failure to pay principal of, premium on, if any, or interest if any, on such Indebtedness prior to the expiration of the grace period provided in such Indebtedness on the date of such default (a “Payment Default”); or

 (B) results in the acceleration of such Indebtedness prior to its express maturity, 

and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under
which there has been a Payment Default or the maturity of which has been so accelerated, aggregates $20.0 million or more; 
 (6) failure by the Company or any of its Restricted Subsidiaries to pay final judgments entered by a court or courts of competent jurisdiction aggregating, to the extent not covered by insurance, in
excess of $20.0 million, which judgments are not paid, discharged or stayed, for a period of 60 days; and 
 (7)
the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted 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 to the entry of an order for relief against it in an involuntary case, 

(C) consents 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 

(E) generally is not paying its debts as they become due; or 

(8) 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 Restricted Subsidiaries that is a Significant Subsidiary or any group
of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary in an involuntary case; 

  
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 (B) appoints a custodian of the Company or any of its Restricted
Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary or for all or substantially all of the property of the Company or any of its
Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary; or 

(C) orders the liquidation of the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any
group of Restricted 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. 

In the case of an Event of Default specified in clause (7) or (8) of Section 6.01 hereof with respect to the Company, any
Restricted Subsidiary of the Company that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable
immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and
payable immediately. 
 Upon any such declaration, the Notes shall become due and payable immediately. 

The Holders of a majority in aggregate principal amount of the then outstanding Notes by written notice to the Trustee may, on behalf of
all of the Holders of all the Notes, rescind an acceleration and its consequences hereunder, if the rescission would not conflict with any judgment or decree and if all existing Events of Default (except nonpayment of principal of, premium on, if
any, or interest, if any, on the Notes that has become due solely because of the acceleration) have been cured or waived. 
 Section 6.03
Other Remedies. 
 If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy to
collect the payment of principal of, premium on, if any, or interest, if any, on the Notes or to enforce the performance of any provision of the Notes or this Indenture. 
 The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder of a Note in
exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies are cumulative to the extent permitted by law. 

Section 6.04 Waiver of Past Defaults. 
 The Holders of a majority in aggregate principal amount of the then outstanding Notes by written notice to the Trustee may, on behalf of the Holders of all of the Notes waive any existing Default or Event
of Default and its consequences hereunder, except a continuing Default or Event of Default in the payment of principal of, premium on, if any, or interest, if any, on, the Notes (including in connection with an offer to purchase); provided,
however, that the Holders of a majority in aggregate principal amount of the then outstanding Notes may rescind an acceleration and its consequences, including any 

  
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related payment default that resulted from such acceleration. Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been
cured for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon. 
 Section 6.05 Control by Majority. 
 Holders of a majority in aggregate
principal amount of the then outstanding Notes may direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee or exercising any trust or power conferred on it. However, the Trustee may refuse to
follow any direction that conflicts with law or this Indenture that the Trustee determines may be unduly prejudicial to the rights of other Holders of Notes or that may involve the Trustee in personal liability. 

Section 6.06 Limitation on Suits. 
 No Holder of a Note may pursue any remedy with respect to this Indenture or the Notes unless: 
 (1) such Holder has previously given the Trustee written notice that an Event of Default is continuing; 
 (2) Holders of at least 25% in aggregate principal amount of the then outstanding Notes make a written request to the Trustee to pursue the remedy; 

(3) such Holder or Holders offer and, if requested, provide to the Trustee security or indemnity reasonably satisfactory
to the Trustee against any loss, liability or expense; 
 (4) the Trustee does not comply with such request
within 60 days after receipt of the request and the offer of security or indemnity; and 
 (5) during such 60-day
period, Holders of a majority in aggregate principal amount of the then outstanding Notes do not give the Trustee a direction inconsistent with such request. 
 A Holder of a Note may not use this Indenture to prejudice the rights of another Holder of a Note or to obtain a preference or priority over another Holder of a Note. 

Section 6.07 Rights of Holders of Notes to Receive Payment. 
 Notwithstanding any other provision of this Indenture, the right of any Holder of a Note to receive payment of principal of, premium on, if any, or interest, if any, on the Note, on or after the
respective due dates expressed in the Note (including in connection with an offer to purchase), or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such
Holder. 
 Section 6.08 Collection Suit by Trustee. 
 If an Event of Default specified in Section 6.01(1) or (2) hereof occurs and is continuing, the Trustee is authorized to recover judgment in its own name and as trustee of an express trust
against the Company for the whole amount of principal of, premium on, if any, and interest, if any, remaining unpaid on the Notes and interest on overdue principal and, to the extent lawful, interest and such further amount as shall be sufficient to
cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel. 

  
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 Section 6.09 Trustee May File Proofs of Claim. 

The Trustee is authorized to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have
the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the Holders of the Notes allowed in any judicial proceedings relative to the Company (or
any other obligor upon the Notes), its creditors or its property and shall be entitled and empowered to collect, receive and distribute any money or other property payable or deliverable on any such claims and any custodian in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the
reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.06 hereof. To the extent that the payment of any such compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.06 hereof out of the estate in any such proceeding, shall be denied for any reason, payment of the same shall be secured by
a Lien on, and shall be paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding whether in liquidation or under any plan of reorganization or
arrangement or otherwise. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes
or the rights of any Holder, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding. 

Section 6.10 Priorities. 
 If the Trustee collects any money pursuant to this Article 6, it shall pay out the money in the following order: 
 First: to the Trustee, its agents and attorneys for amounts due under Section 7.06 hereof, including payment of all compensation, expenses and liabilities incurred, and all advances made, by
the Trustee and the costs and expenses of collection; 
 Second: to Holders of Notes for amounts due and
unpaid on the Notes for principal, premium, if any, and interest, if any, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal, premium, if any, and interest, if any, respectively;
and 
 Third: to the Company or to such party as a court of competent jurisdiction shall direct.

 The Trustee may fix a record date and payment date for any payment to Holders of Notes pursuant to this Section 6.10.

 Section 6.11 Undertaking for Costs. 
 In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as a Trustee, a court in its discretion may require the
filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees, against any party litigant in the suit, having due
regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 6.11 does not apply to a suit by the Trustee, a suit by a Holder of a Note pursuant to Section 6.07 hereof, or a suit by Holders of more
than 10% in aggregate principal amount of the then outstanding Notes. 

  
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 ARTICLE 7 
 TRUSTEE 
 Section 7.01 Duties of Trustee. 

(a) If an Event of Default has occurred and is continuing, the Trustee will exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in its exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs. 

(b) Except during the continuance of an Event of Default: 

(1) the duties of the Trustee will be determined solely by the express provisions of this Indenture and the Trustee need
perform only those duties that are specifically set forth in this Indenture and no others, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and 

(2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the
correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, the Trustee will examine the certificates and opinions to determine whether or not
they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein). 
 (c) The Trustee may not be relieved from liabilities for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that: 

(1) this paragraph does not limit the effect of paragraph (b) of this Section 7.01; 

(2) the Trustee will not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is
proved that the Trustee was negligent in ascertaining the pertinent facts; and 
 (3) the Trustee will not be
liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05 hereof. 
 (d) Whether or not therein expressly so provided, every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b), and (c) of this Section 7.01.

 (e) No provision of this Indenture will require the Trustee to expend or risk its own funds or incur any liability. The
Trustee will be under no obligation to exercise any of its rights or powers under this Indenture at the request of any Holders, unless such Holder has offered to the Trustee security and indemnity satisfactory to it against any loss, liability or
expense. 
 (f) The Trustee will not be liable for interest on any money received by it except as the Trustee may agree in
writing with the Company. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law. 

  
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 Section 7.02 Rights of Trustee. 

(a) The Trustee may conclusively rely upon any document believed by it to be genuine and to have been signed or presented by the proper
Person. The Trustee need not investigate any fact or matter stated in the document. 
 (b) Before the Trustee acts or refrains
from acting, it may require an Officers’ Certificate or an Opinion of Counsel or both. The Trustee will not be liable for any action it takes or omits to take in good faith in reliance on such Officers’ Certificate or Opinion of Counsel.
The Trustee may consult with counsel of its selection and the advice of such counsel or any Opinion of Counsel will be full and complete authorization and protection from liability in respect of any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon. 
 (c) The Trustee may act through its attorneys and agents and will not be responsible
for the misconduct or negligence of any agent appointed with due care. 
 (d) The Trustee will not be liable for any action it
takes or omits to take in good faith that it believes to be authorized or within the rights or powers conferred upon it by this Indenture. 
 (e) Unless otherwise specifically provided in this Indenture, any demand, request, direction or notice from the Company will be sufficient if signed by an Officer of the Company. 

(f) The Trustee will be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or
direction of any of the Holders unless such Holders have offered to the Trustee reasonable indemnity or security satisfactory to the Trustee against the losses, liabilities and expenses that might be incurred by it in compliance with such request or
direction. 
 (g) The Trustee shall not be required to make any investigation into the facts or matters stated in any
resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of Indebtedness or other paper or document, but the Trustee, in its discretion, may make such further
inquiry or investigation into such facts or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company, personally or
by agent or attorney at the sole cost of the Company and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation. 
 (h) In no event shall the Trustee be responsible or liable for special, indirect, or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of
whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action. 
 (i) The
Trustee shall not be deemed to have notice of any Default or Event of Default 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 or Event of Default is
received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Notes and this Indenture. 

(j) The rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be
indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder. 

  
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 (k) The Trustee may request that the Company deliver a certificate setting forth the names
of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture. 
 Section 7.03
Individual Rights of Trustee. 
 The Trustee in its individual or any other capacity may become the owner or pledgee of
Notes and may otherwise deal with the Company or any Affiliate of the Company with the same rights it would have if it were not Trustee. However, in the event that the Trustee acquires any conflicting interest it must eliminate such conflict within
90 days or resign. Any Agent may do the same with like rights and duties. The Trustee is also subject to Section 7.09 hereof. 

Section 7.04 Trustee’s Disclaimer. 
 The Trustee will not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Company’s use of the proceeds
from the Notes or any money paid to the Company or upon the Company’s direction under any provision of this Indenture, it will not be responsible for the use or application of any money received by any Paying Agent other than the Trustee, and
it will not be responsible for any statement or recital herein or any statement in the Notes or any other document in connection with the sale of the Notes or pursuant to this Indenture other than its certificate of authentication. 

Section 7.05 Notice of Defaults. 
 If a Default or Event of Default occurs and is continuing and if it is known to the Trustee, the Trustee will mail to Holders of Notes a notice of the Default or Event of Default within 90 days after it
occurs. Except in the case of a Default or Event of Default in payment of principal of, premium on, if any, or interest, if any, on, any Note, the Trustee may withhold the notice if and so long as a committee of its Responsible Officers in good
faith determines that withholding the notice is in the interests of the Holders of the Notes. 
 Section 7.06 Compensation and
Indemnity. 
 (a) The Company will pay to the Trustee from time to time reasonable compensation for its acceptance of this
Indenture and services hereunder. The Trustee’s compensation will not be limited by any law on compensation of a trustee of an express trust. The Company will reimburse the Trustee promptly upon request for all reasonable disbursements,
advances and expenses incurred or made by it in addition to the compensation for its services. Such expenses will include the reasonable compensation, disbursements and expenses of the Trustee’s agents and counsel. 

(b) The Company will indemnify the Trustee against any and all losses, claims, damages, liabilities or expenses incurred by it arising
out of or in connection with the acceptance or administration of its duties under this Indenture, including the costs and expenses of enforcing this Indenture against the Company (including this Section 7.06) and defending itself against any
claim (whether asserted by the Company, any Holder or any other Person) or liability in connection with the exercise or performance of any of its powers or duties hereunder, except to the extent any such loss, liability or expense may be
attributable to its negligence or bad faith. The Trustee will notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company will not relieve the Company of its obligations hereunder. The
Company will defend the claim and the Trustee will cooperate in the defense. The Trustee may have separate counsel and the Company will pay the reasonable fees and expenses of such counsel. The Company need not pay for any settlement made without
its consent, which consent will not be unreasonably withheld. 

  
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 (c) The obligations of the Company under this Section 7.06 will survive the
satisfaction and discharge of this Indenture or the earlier resignation or removal of the Trustee. 
 (d) To secure the
Company’s payment obligations in this Section 7.06, the Trustee will have a Lien prior to the Notes on all money or property held or collected by the Trustee, except that held in trust to pay principal of, premium on, if any, or interest,
if any, on, particular Notes. Such Lien will survive the satisfaction and discharge of this Indenture. 
 (e) When the Trustee
incurs expenses or renders services after an Event of Default specified in clause (7) or (8) of Section 6.01 hereof occurs, the expenses and the compensation for the services (including the fees and expenses of its agents and counsel)
are intended to constitute expenses of administration under any Bankruptcy Law. 
 Section 7.07 Replacement of Trustee. 

(a) A resignation or removal of the Trustee and appointment of a successor Trustee will become effective only upon the successor
Trustee’s acceptance of appointment as provided in this Section 7.07. 
 (b) The Trustee may resign in writing at any
time and be discharged from the trust hereby created by so notifying the Company. The Holders of a majority in aggregate principal amount of the then outstanding Notes may remove the Trustee by so notifying the Trustee and the Company in writing.
The Company may remove the Trustee if: 
 (1) the Trustee fails to comply with Section 7.09 hereof;

 (2) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the
Trustee under any Bankruptcy Law; 
 (3) a custodian or public officer takes charge of the Trustee or its
property; or 
 (4) the Trustee becomes incapable of acting. 

(c) If the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Company will promptly
appoint a successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in aggregate principal amount of the then outstanding Notes may appoint a successor Trustee to replace the successor Trustee appointed
by the Company. 
 (d) If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is
removed, the retiring Trustee, the Company, or the Holders of at least 10% in aggregate principal amount of the then outstanding Notes may petition any court of competent jurisdiction for the appointment of a successor Trustee. 

(e) If the Trustee, after written request by any Holder who has been a Holder for at least six months, fails to comply with
Section 7.09 hereof, such Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee. 

  
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 (f) A successor Trustee will deliver a written acceptance of its appointment to the retiring
Trustee and to the Company. Thereupon, the resignation or removal of the retiring Trustee will become effective, and the successor Trustee will have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee will
mail a notice of its succession to Holders. The retiring Trustee will promptly transfer all property held by it as Trustee to the successor Trustee; provided all sums owing to the Trustee hereunder have been paid and subject to the Lien
provided for in Section 7.06 hereof. Notwithstanding replacement of the Trustee pursuant to this Section 7.07, the Company’s obligations under Section 7.06 hereof will continue for the benefit of the retiring Trustee. 

Section 7.08 Successor Trustee by Merger, etc. 
 If the Trustee consolidates, merges or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the successor corporation without any further act will
be the successor Trustee. 
 Section 7.09 Eligibility; Disqualification. 

There will at all times be a Trustee hereunder that is a corporation organized and doing business under the laws of the United States of
America or of any state thereof that is authorized under such laws to exercise corporate trustee power, that is subject to supervision or examination by federal or state authorities and that has a combined capital and surplus of at least $100.0
million as set forth in its most recent published annual report of condition. 
 ARTICLE 8 

LEGAL DEFEASANCE AND COVENANT DEFEASANCE 
 Section 8.01 Option to Effect Legal Defeasance or Covenant Defeasance. 

The Company may at any time, at the option of its Board of Directors evidenced by a resolution set forth in an Officers’
Certificate, elect to have either Section 8.02 or 8.03 hereof be applied 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 will, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be deemed to have been discharged from its obligations
with respect to all outstanding Notes on the date the conditions set forth below are satisfied (hereinafter, “Legal Defeasance”). For this purpose, Legal Defeasance means that the Company will be deemed to have paid and discharged
the entire Indebtedness represented by the outstanding Notes, which will thereafter be deemed to be “outstanding” only for the purposes of Section 8.05 hereof and the other Sections of this Indenture referred to in clauses
(1) and (2) below, and to have satisfied all its other obligations under such Notes 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 will survive until otherwise terminated or discharged hereunder: 
 (1) the rights
of Holders of outstanding Notes to receive payments in respect of the principal of, premium on, if any, or interest, if any, on such Notes when such payments are due from the trust referred to in Section 8.04 hereof; 

  
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 (2) the Company’s obligations with respect to such Notes under Article
2 and Section 4.02 hereof; 
 (3) the rights, powers, trusts, duties and immunities of the Trustee hereunder
and the Company’s obligations in connection therewith; and 
 (4) 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. 
 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 will,
subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be released from each of its obligations under the covenants contained in Sections 4.03, 4.07, 4.08, 4.09, 4.10, 4.11, 4.12, 4.13, 4.15, 4.16 and 4.17 hereof and
clause (4) of Section 5.01 hereof with respect to the outstanding Notes on and after the date the conditions set forth in Section 8.04 hereof are satisfied (hereinafter, “Covenant Defeasance”), and the Notes will
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 will continue to be deemed
“outstanding” for all other purposes hereunder (it being understood that such Notes will not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Notes, the
Company may omit to comply with and will 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 will not constitute a Default or an Event of Default under Section 6.01 hereof, but, except as specified above, the
remainder of this Indenture and such Notes will be unaffected thereby. In addition, upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, subject to the satisfaction of the conditions set
forth in Section 8.04 hereof, Sections 6.01(3), (4), (5) and (6) hereof will not constitute Events of Default. 

Section 8.04 Conditions to Legal or Covenant Defeasance. 
 In order to exercise either Legal Defeasance or Covenant Defeasance under either Section 8.02 or 8.03 hereof: 
 (1) the Company must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders, 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, premium, if any, on, and interest, if any, on the outstanding Notes on the stated date
for payment thereof or on the applicable redemption date, as the case may be, and the Company must specify whether the Notes are being defeased to such stated date for payment or to a particular redemption date; 

(2) in the case of an election under Section 8.02 hereof, the Company must deliver to the Trustee an Opinion of
Counsel reasonably acceptable to the Trustee confirming that: 
 (A) the Company has received from, or there has
been published by, the Internal Revenue Service a ruling; or 

  
 72 

 (B) since the date of this Indenture, 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 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; 
 (3) in the case of an election
under Section 8.03 hereof, the Company must deliver to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that the Holders 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; 

(4) 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 borrowings); 

(5) such Legal Defeasance or Covenant Defeasance will 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 is a party or by which the Company is bound; 

(6) the Company must deliver to the Trustee an Officers’ Certificate stating that the deposit was not made by the
Company with the intent of preferring the Holders of Notes over the other creditors of the Company with the intent of defeating, hindering, delaying or defrauding any creditors of the Company or others; and 

(7) the Company must deliver to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all
conditions precedent 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 (or other qualifying trustee, collectively for purposes of this Section 8.05, the “Trustee”) pursuant to
Section 8.04 hereof in respect of the outstanding Notes will be held in trust and applied by the Trustee, in accordance with the provisions of such Notes and this 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, if any, but such money need not be segregated from other
funds except to the extent required by law. 

  
 73 

 The Company will 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 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. 
 Notwithstanding anything in this Article 8 to the contrary, the Trustee will
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 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(1) hereof), are in excess of the amount thereof that would then be required to be deposited to
effect an equivalent Legal Defeasance or Covenant Defeasance. 
 Section 8.06 Repayment to Company. 

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,
premium on, if any, or interest, if any, on any Note and remaining unclaimed for two years after such principal, premium, if any, or interest, if any, has become due and payable shall be paid to the Company on its request or (if then held by the
Company) will be discharged from such trust; and the Holder of such Note will thereafter be permitted to 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, will 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 will 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 U.S. dollars or non-callable Government Securities in accordance with
Section 8.02 or 8.03 hereof, as the case may be, 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 will 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 8.02 or 8.03 hereof, as the case may be; provided, however, that, if the Company makes any payment of principal of, premium on, if any, or interest, if any, on, any Note following the reinstatement of its obligations, the Company
will 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. 
 ARTICLE 9 
 AMENDMENT, SUPPLEMENT AND WAIVER 

Section 9.01 Without Consent of Holders of Notes. 
 Notwithstanding Section 9.02 of this Indenture, without the consent of any Holder of Notes, the Company and the Trustee may amend or supplement this Indenture or the Notes: 

(1) to cure any ambiguity, defect or inconsistency; 

  
 74 

 (2) to provide for uncertificated Notes in addition to or in place of
certificated Notes; 
 (3) to provide for the assumption of the Company’s obligations to the Holders of the
Notes by a successor to the Company pursuant to Article 5 hereof; 
 (4) to make any change that would provide
any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights hereunder of any Holder; or 
 (5) to conform the text of this Indenture or the Notes to any provision of the “Description of the Notes” section of the Offering Circular to the extent that such provision in that
“Description of the Notes” was intended to be a verbatim recitation of a provision of this Indenture or the Notes or to the extent the Notes are intended to be identical to the Existing Heckmann Notes, which intent may be evidenced by an
Officers’ Certificate to that effect. 
 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 documents described in Section 7.02 hereof, the Trustee will join with the Company in the execution of any 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 will not be obligated to enter into such amended or
supplemental indenture that affects its own rights, duties or immunities under this Indenture or otherwise. 
 Section 9.02 With Consent
of Holders of Notes. 
 Except as provided below in this Section 9.02, the Company and the Trustee may amend or
supplement this Indenture (including, without limitation, Section 3.09, 4.10 and 4.15 hereof) and the Notes with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes voting as a single
class (including, without limitation, consents obtained in connection with a tender offer or exchange offer for, or purchase of, the Notes), and, subject to Sections 6.04 and 6.07 hereof, any existing Default or Event of Default (other than a
Default or Event of Default in the payment of the principal of, premium on, if any, or interest, if any, on, the Notes, except a payment default resulting from an acceleration that has been rescinded) or compliance with any provision of this
Indenture or the Notes may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes voting as a single class (including, without limitation, consents obtained in connection with a tender
offer or exchange offer for, or purchase of, the Notes). Section 2.08 hereof shall determine which Notes are considered to be “outstanding” for purposes of this Section 9.02. 

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 documents described in Section 7.02 hereof, the
Trustee will join with the Company in the execution of such amended or supplemental indenture unless such amended or supplemental indenture directly affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in
which case the Trustee may in its discretion, but will not be obligated to, enter into such amended or supplemental Indenture. 

It is not necessary for the consent of the Holders of Notes under this Section 9.02 to approve the particular form of any proposed
amendment, supplement or waiver, but it is sufficient if such consent approves the substance thereof. 

  
 75 

 After an amendment, supplement or waiver under this Section 9.02 becomes effective, the
Company will 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, will not, however, in any way impair or affect the
validity of any such amended or supplemental indenture or waiver. Subject to Sections 6.04 and 6.07 hereof, the Holders of a majority in aggregate principal amount of the Notes then outstanding voting as a single class 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 under this Section 9.02 may not (with respect to any Notes held by a
non-consenting Holder): 
 (1) reduce the principal amount of Notes whose Holders must consent to an amendment,
supplement or waiver; 
 (2) reduce the principal of or change the fixed maturity of any Note or alter or waive
any of the provisions with respect to the redemption of the Notes (except as provided above with respect to Sections 3.09, 4.10 and 4.15 hereof); 
 (3) reduce the rate of or change the time for payment of interest, including default interest, on any Note; 
 (4) waive a Default or Event of Default in the payment of principal of, premium on, if any, or interest, if any, on, the Notes (except a rescission of acceleration of the Notes by the Holders of at least
a majority in aggregate principal amount of the then outstanding Notes and a waiver of the payment default that resulted from such acceleration); 
 (5) make any Note payable in money other than that stated in the Notes; 
 (6) make any change in the provisions of this Indenture relating to waivers of past Defaults or the rights of Holders of Notes to receive payments of principal of, premium, if any, on, or interest, if
any, on the Notes; 
 (7) waive a redemption payment with respect to any Note (other than a payment required by
Sections 3.09, 4.10 or 4.15 hereof); or 
 (8) make any change in the preceding amendment and waiver provisions.

 Section 9.03 Revocation and Effect of Consents. 
 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 amendment, supplement or waiver becomes effective. An amendment, supplement or waiver becomes effective in accordance with its terms and thereafter binds every Holder. 

Section 9.04 Notation on or Exchange of Notes. 
 The Trustee may place an appropriate notation about an amendment, supplement or waiver on any Note thereafter authenticated. The Company in exchange for all Notes may issue and the Trustee shall, upon
receipt of an Authentication Order, authenticate new Notes that reflect the amendment, supplement or waiver. 

  
 76 

 Failure to make the appropriate notation or issue a new Note will not affect the validity
and effect of such amendment, supplement or waiver. 
 Section 9.05 Trustee to Sign Amendments, etc. 

The Trustee will sign any amended or supplemental indenture authorized pursuant to this Article 9 if the amendment or supplement does not
adversely affect the rights, duties, liabilities or immunities of the Trustee. The Company may not sign an amended or supplemental indenture until the Board of Directors of the Company approves it. In executing any amended or supplemental indenture,
the Trustee will be entitled to receive and (subject to Section 7.01 hereof) will be fully protected in relying upon, in addition to the documents required by Section 11.02 hereof, an Officers’ Certificate and an Opinion of Counsel
stating that the execution of such amended or supplemental indenture is authorized or permitted by this Indenture. 
 ARTICLE 10

 SATISFACTION AND DISCHARGE 
 Section 10.01 Satisfaction and Discharge. 
 This Indenture will be
discharged and will cease to be of further effect as to all Notes issued hereunder, when: 
 (1) either:

 (a) all Notes that have been authenticated, except lost, stolen or destroyed Notes that have been replaced or
paid and Notes for whose payment money has been deposited in trust and thereafter repaid to the Company, have been delivered to the Trustee for cancellation; or 
 (b) all Notes that have not been delivered to the Trustee for cancellation have become due and payable by reason of the mailing of a notice of redemption or otherwise or will become due and payable within
one year or called for redemption within one year pursuant to arrangements satisfactory to the Trustee, and the Company has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the
Holders, cash in U.S. dollars, non-callable Government Securities, or a combination thereof, in such amounts as will be sufficient, without consideration of any reinvestment of interest, to pay and discharge the entire Indebtedness on the Notes not
delivered to the Trustee for cancellation for principal, premium, if any, and interest, if any, to the date of maturity or redemption; 
 (2) in respect of subclause (b) of clause (1) of this Section 10.01, no Default or Event of Default has occurred and is continuing on the date of the deposit (other than a Default or Event
of Default resulting from the borrowing of funds to be applied to such deposit and any similar deposit relating to other Indebtedness and, in each case, the granting of Liens to secure such borrowings) and the deposit will not result in a breach or
violation of, or constitute a default under, any other instrument to which the Company is a party or by which the Company is bound (other than with respect to the borrowing of funds to be applied concurrently to make the deposit required to effect
such satisfaction and discharge and any similar concurrent deposit relating to other Indebtedness, and in each case the granting of Liens to secure such borrowings); 

  
 77 

 (3) the Company has paid or caused to be paid all sums payable by it under
this Indenture; and 
 (4) the Company has delivered irrevocable instructions to the Trustee under this Indenture
to apply the deposited money toward the payment of the Notes at maturity or on the redemption date, as the case may be. 
 In addition, the
Company must deliver an Officers’ Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied. 

Notwithstanding the satisfaction and discharge of this Indenture, if money has been deposited with the Trustee pursuant to subclause
(b) of clause (1) of this Section 10.01, the provisions of Sections 10.02 and 8.06 hereof will survive. In addition, nothing in this Section 10.01 will be deemed to discharge those provisions of Section 7.06 hereof, that, by
their terms, survive the satisfaction and discharge of this Indenture. 
 Section 10.02 Application of Trust Money. 

Subject to the provisions of Section 8.06 hereof, all money deposited with the Trustee pursuant to Section 10.01 hereof shall
be held in trust and applied by it, in accordance with the provisions of the Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine,
to the Persons entitled thereto, of the principal, premium, if any, and interest, if any, for whose payment such money has been deposited with the Trustee; but such money need not be segregated from other funds except to the extent required by law.

 If the Trustee or Paying Agent is unable to apply any money or Government Securities in accordance with Section 10.01
hereof by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s obligations under this Indenture and the Notes
shall be revived and reinstated as though no deposit had occurred pursuant to Section 10.01 hereof; provided that if the Company has made any payment of principal of, premium on, if any, or interest, if any, on, any Notes because of 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 or Government Securities held by the Trustee or Paying Agent. 

ARTICLE 11 

MISCELLANEOUS 

Section 11.01 Notices. 
 Any notice or communication by the Company or the Trustee to the other is duly given if in writing and delivered in Person or by first class mail (registered or certified, return receipt requested),
facsimile transmission or overnight air courier guaranteeing next day delivery, to the others’ address: 
 If to the
Company: 
 Rough Rider Escrow, Inc. 
 c/o Heckmann Corporation 
 300 Cherrington Parkway 

Suite 200 

  
 78 

 Coraopolis, PA 15108 

Telephone No.: (412) 329-7275 
 Facsimile No.: (412) 291-1983 
 Attention: Chief Legal Officer 

If to the Trustee: 
 The Bank of New York Mellon Trust Company, N.A. 
 525 William Penn Place, 38th
Floor 
 Pittsburgh, PA 15259 
 Facsimile No.: (412) 234-7535 
 Attention: Corporate Trust Administration

 The Company or the Trustee, by notice to the other, may designate additional or different addresses for subsequent notices or
communications. 
 All notices and communications (other than those sent to Holders) will be deemed to have been duly given: at
the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt acknowledged, if transmitted by facsimile; and the next Business Day after timely delivery to the
courier, if sent by overnight air courier guaranteeing next day delivery. 
 Any notice or communication to a Holder will be
mailed by first class mail, certified or registered, return receipt requested, or by overnight air courier guaranteeing next day delivery to its address shown on the register kept by the Registrar. Failure to mail a notice or communication to a
Holder or any defect in it will not affect its sufficiency with respect to other Holders. 
 The Trustee agrees to accept and
act upon instructions or directions pursuant to this Indenture sent by unsecured e-mail, pdf, facsimile transmission or other similar unsecured electronic methods; provided, however, that the Trustee shall have received an incumbency
certificate listing persons designated to give such instructions or directions and containing specimen signatures of such designated persons, which such incumbency certificate shall be amended and replaced whenever a person is to be added or deleted
from the listing. If the Company elects to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic method) and the Trustee in its discretion elects to act upon such instructions, the Trustee’s understanding of
such instructions shall be deemed controlling. The Trustee shall not be liable for any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and compliance with such instructions notwithstanding such
instructions conflict or are inconsistent with a subsequent written instruction. The Company agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions to the Trustee, including without
limitation the risk of the Trustee acting on unauthorized instructions, and the risk or interception and misuse by third parties 
 If a notice or communication is mailed in the manner provided above within the time prescribed, it is duly given, whether or not the addressee receives it. 

If the Company mails a notice or communication to Holders, it will mail a copy to the Trustee and each Agent at the same time.

 Section 11.02 Certificate and Opinion as to Conditions Precedent. 

Upon any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the
Trustee: 
 (1) an Officers’ Certificate in form and substance reasonably satisfactory to the Trustee (which
must include the statements set forth in Section 11.03 hereof) stating that, in the opinion of the signers, all conditions precedent and covenants, if any, provided for in this Indenture relating to the proposed action have been satisfied; and

  
 79 

 (2) an Opinion of Counsel in form and substance reasonably satisfactory to
the Trustee (which must include the statements set forth in Section 11.03 hereof) stating that, in the opinion of such counsel, all such conditions precedent and covenants have been satisfied. 

Section 11.03 Statements Required in Certificate or Opinion. 
 Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture must include: 

(1) a statement that the Person making such certificate or opinion has read such covenant or condition; 

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions
contained in such certificate or opinion are based; 
 (3) a statement that, in the opinion of such Person, he or
she has made such examination or investigation as is necessary to enable him or her to express an informed opinion as to whether or not such covenant or condition has been satisfied; and 

(4) a statement as to whether or not, in the opinion of such Person, such condition or covenant has been satisfied.

 Section 11.04 Rules by Trustee and Agents. 
 The Trustee may make reasonable rules for action by or at a meeting of Holders. The Registrar or Paying Agent may make reasonable rules and set reasonable requirements for its functions. 

Section 11.05 No Personal Liability of Directors, Officers, Employees and Stockholders. 

No director, officer, employee, incorporator or stockholder of the Company, as such, will have any liability for any obligations of the
Company under the Notes, this Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part
of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws. 

Section 11.06 Governing Law. 
 THE INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THIS INDENTURE AND THE NOTES WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE
APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. 

  
 80 

 Section 11.07 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 11.08 Successors.

 All agreements of the Company in this Indenture and the Notes will bind its successors. All agreements of the Trustee in this
Indenture will bind its successors. 
 Section 11.09 Severability. 

In case any provision in this Indenture or in the Notes is invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions will not in any way be affected or impaired thereby. 
 Section 11.10 Counterpart Originals. 

The parties may sign any number of copies of this Indenture. Each signed copy will be an original, but all of them together represent the
same agreement. 
 Section 11.11 Table of Contents, Headings, etc. 

The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for
convenience of reference only, are not to be considered a part of this Indenture and will in no way modify or restrict any of the terms or provisions hereof. 
 Section 11.12 Waiver of Jury Trial. 
 EACH OF THE COMPANY AND THE
TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY.

 Section 11.13 Force Majeure. 
 In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations 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, nuclear or natural catastrophes or acts of God, and interruptions, losses or malfunctions of utilities,
communications or computer (software and hardware) services; it being understood that the Trustee shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under
the circumstances. 
 [Signatures on following page] 

  
 81 

 SIGNATURES 
 Dated as of November 5, 2012 
  

			
	ROUGH RIDER ESCROW, INC.
		
	By:	 	 /s/ Damian C. Georgino

		 	Name: Damian C. Georgino
		 	Title: Vice President

 
			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	By:	 	 Lawrence M. Kusch

		 	Name: Lawrence M. Kusch
		 	Title: Vice President

 EXHIBIT A1 
 [Face of Note] 
  
 CUSIP/CINS              

9.875% Senior Notes due 2018 
  

			
	No.     	  	$            

 ROUGH RIDER ESCROW, INC. 
 promises to pay to              or registered assigns, 
 the principal sum of
                                         DOLLARS
on April 15, 2018. 
 Interest Payment Dates: April 15 and October 15 
 Record Dates: April 1 and October 1 
 Dated:
                     
  

			
	ROUGH RIDER ESCROW, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  

			
	This is one of the Notes referred to in the within-mentioned Indenture:
	
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	By:	 	  

		 	Authorized Signatory

  
  

  
 A1-1

 [Back of Note] 
 9.875% Senior Notes due 2018 
 [Insert the Global Note Legend, if applicable pursuant to the
provisions of the Indenture] 
 [Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture]

 Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise
indicated. 
 (1) INTEREST. Rough Rider Escrow, Inc., a Delaware corporation
(the “Company”), promises to pay or cause to be paid interest on the principal amount of this Note at 9.875% per annum from
                    ,      until maturity. The Company will pay interest, if any, semi-annually in arrears on April 15 and
October 15 of each year, 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 the date of issuance; provided that, 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; provided further that the first Interest Payment Date shall be                     ,
    . The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at a rate that is 1% higher than the then applicable interest rate on the Notes to the extent
lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest, if any (without regard to any applicable grace period), at the same rate to the extent lawful.

 Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months. 

(2) METHOD OF PAYMENT. The Company will pay interest on
the Notes (except defaulted interest), if any, to the Persons who are registered Holders of Notes at the close of business on the April 1 or October 1 next preceding the Interest Payment Date, even if such Notes are canceled after such
record date and on or before such Interest Payment Date, except as provided in Section 2.12 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium, if any, and interest, if any, at the office or
agency of the Paying Agent and Registrar within the City and State of New York, or, at the option of the Company, payment of interest, if any, may be made by check mailed to the Holders at their addresses set forth in the register of Holders;
provided that payment by wire transfer of immediately available funds will be required with respect to principal of, premium on, if any, and interest, if any, on, all Global Notes and all other Notes the Holders of which will have provided
wire transfer instructions to the Company or the Paying Agent. Such payment will be in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts. 

(3) PAYING AGENT AND REGISTRAR.
Initially, The Bank of New York Mellon Trust Company, N.A., the Trustee under the Indenture, will act as Paying Agent and Registrar. The Company may change the Paying Agent or Registrar without prior notice to the Holders of the Notes. The Company
or any of its Subsidiaries may act as Paying Agent or Registrar. 
 (4)
INDENTURE. The Company issued the Notes under an Indenture dated as of November 5, 2012 (the “Indenture”) by and between the Company and the Trustee. The terms of

  
 A1-2

 
the Notes include those stated in the Indenture. The Notes are subject to all such terms, and Holders are referred to the Indenture for a statement of such terms. To the extent any provision of
this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Notes are unsecured obligations of the Company. The aggregate principal amount of Notes outstanding at any time
may not exceed $150.0 million, except as provided in Section 2.07 of the Indenture. 
 (5)
OPTIONAL REDEMPTION. 
 (a) At any time prior to
April 15, 2015, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under the Indenture, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to
109.875% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to the date of redemption (subject to the rights of Holders of Notes on the relevant record date to receive interest on the relevant Interest Payment
Date), with the net cash proceeds of an Equity Offering by the Company; provided that: 
 (i) at least
65% of the aggregate principal amount of Notes originally issued under the Indenture (excluding Notes held by the Company and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and 

(ii) the redemption occurs within 45 days of the date of the closing of such Equity Offering. 

(b) At any time prior to April 15, 2015, the Company may on any one or more occasions redeem all or a part of the
Notes, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to 100% of the principal amount of the Notes redeemed, plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the applicable date of
redemption, subject to the rights of Holders on the relevant record date to receive interest due on the relevant Interest Payment Date. 
 (c) Except pursuant to the preceding paragraphs, the Notes will not be redeemable at the Company’s option prior to April 15, 2015. 

(d) On or after April 15, 2015, the Company may on any one or more occasions redeem all or a part of the Notes, upon
not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest, if any, on the Notes redeemed, to the applicable date of redemption, if
redeemed during the twelve-month period beginning on April 15 of the years indicated below, subject to the rights of Holders on the relevant record date to receive interest on the relevant Interest Payment Date: 

 

					
	 Year
	  	Percentage	 
	 2015
	  	 	104.938	% 
	 2016
	  	 	102.469	% 
	 2017 and thereafter
	  	 	100.000	% 

 Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on the
Notes or portions thereof called for redemption on the applicable redemption date. 

  
 A1-3

 (6) ESCROW OF PROCEEDS;
MANDATORY REDEMPTION. The Notes are subject to the provisions of an Escrow Agreement between the Company and The Bank of New York Mellon Trust Company, N.A., as Escrow Agent. Except as set forth below
under clause (a) (“Special Redemption”) or (b) (“Stage II Notes Exchange Redemption”), the Company is not required to make mandatory redemption or sinking fund payments with respect to the Notes.

 (a) Special Redemption. If the Merger shall not have occurred on or prior to the Termination Date (or
the Merger shall have been terminated or abandoned prior to such date), the Company shall, no later than the third Business Day following the Termination Date (or such earlier date on which the Merger shall have been terminated or abandoned), redeem
all of the Notes then outstanding (the “Special Redemption”) at a redemption price equal to 100.250% of the aggregate principal amount thereof, together with accrued but unpaid interest (including, for the avoidance of doubt,
pre-issuance interest) thereon from October 15, 2012 to the date of such redemption (the “Special Redemption Date”) (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant
interest payment date). The Company shall calculate the total redemption amount due to Holders pursuant to the preceding sentence and notify the Trustee of such amount prior to the Special Redemption Date. 

The Company will pay, through the Paying Agent, using the Escrowed Funds, such redemption price for all Notes together
with accrued and unpaid interest to the Special Redemption Date. On and after the Special Redemption Date, interest will cease to accrue on Notes called for redemption as long as the Company has deposited with the Paying Agent funds in satisfaction
of such redemption price pursuant to the Indenture. 
 (b) Stage II Notes Exchange Redemption. If the
Merger shall have occurred on or prior to the Termination Date, the Company shall, no later than the third Business Day following the consummation of the Merger, redeem all of the Notes then outstanding (the “Stage II Notes Exchange
Redemption”) at a redemption price equal to 100% of the aggregate principal amount thereof. Notwithstanding anything to the contrary in any Note or the Indenture or any other document, the consideration paid to each Holder on the date of
such Stage II Notes Exchange Redemption (the “Exchange Redemption Date”) to redeem its Notes shall only consist of Stage II Notes issued by Heckmann (promptly following the merger of Rough Rider with and into Heckmann in accordance
with the provisions of Section 5.01 of the Indenture) in exchange for a like principal amount of such Notes and having the terms set forth in the Stage II Indenture. Unless the Exchange Redemption Date is a scheduled interest payment date for
the Notes, the Company shall not be obligated to pay to any Holder any accrued and unpaid interest to the Exchange Redemption Date in connection with the Stage II Notes Exchange Redemption, which accrued and unpaid interest will be evidenced by the
Stage II Notes issued to such Holder in exchange for its Notes (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date). 

The Company will only pay such redemption price for any Note through the issuance of a Stage II Note having the same
principal amount as such Note. Each Holder shall surrender all of its Notes upon issuance of a like principal amount of Stage II Notes in accordance with the preceding paragraph under this clause (b). On and after the Exchange Redemption Date,
interest will cease to accrue on Notes called for redemption and the Notes and the Indenture will be deemed to have been satisfied and discharged in full as long as Heckmann has issued to each Holder Stage II Notes in accordance with the preceding
paragraph under this clause (b). 

  
 A1-4

 (7) REPURCHASE AT THE
OPTION OF HOLDER. 
 (a) Upon the occurrence of a Change of
Control, the Company will be required to make an offer (a “Change of Control Offer”) to each Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes at a
purchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to the date of purchase, subject to the rights of Holders of Notes on the relevant record
date to receive interest due on the relevant Interest Payment Date (the “Change of Control Payment”). Within 20 days following any Change of Control, the Company will mail a notice to each Holder setting forth the procedures
governing the Change of Control Offer as required by the Indenture. 
 (b) If the Company or a Restricted
Subsidiary of the Company consummates any Asset Sales, within 10 days of each date on which the aggregate amount of Excess Proceeds exceeds $25.0 million, the Company will make an Asset Sale Offer to all Holders of Notes and all holders of other
Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in the Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets in accordance with the Indenture to
purchase, prepay or redeem the maximum principal amount of Notes and such other pari passu Indebtedness (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in connection
therewith) that may be purchased, prepaid or redeemed out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to the date of purchase, prepayment or
redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant Interest Payment 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 the Indenture. If the aggregate principal amount of Notes and other pari passu Indebtedness tendered in (or required to be prepaid or redeemed in connection
with) such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee (or Depositary) will select the Notes and the applicable party shall select such other pari passu Indebtedness to be purchased on a pro rata basis (subject
to Applicable Procedures), based on the amounts tendered or required to be prepaid or redeemed. Upon completion of each Asset Sale Offer, the amount of Excess Proceeds will be reset at zero. 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” attached to the Notes.

 (8) NOTICE OF REDEMPTION. Subject to
Section 3.08 of the Indenture, at least 30 days but not more than 60 days before a redemption date, the Company will mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its
registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of the Indenture pursuant to Articles
8 or 10 thereof. Notes and portions of Notes selected will be in amounts of $2,000 or whole multiples of $1,000 in excess thereof; except that if all of the Notes of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes
held by such Holder shall be redeemed or purchased. 
 (9) DENOMINATIONS,
TRANSFER, EXCHANGE. The Notes are in registered form in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged
as provided in the Indenture. The Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and the Company may require a Holder to pay any taxes and fees required by law or
permitted by the Indenture. The Company need not exchange or register the transfer of 

  
 A1-5

 
any Note or portion of a Note selected for redemption, except for the unredeemed portion of any Note being redeemed in part. Also, the Company need not exchange or register the transfer of any
Notes for a period of 15 days before a selection of Notes to be redeemed or during the period between a record date and the next succeeding Interest Payment Date. 

(10) PERSONS DEEMED OWNERS. The registered Holder of a
Note may be treated as the owner of it for all purposes. Only registered Holders have rights under the Indenture. 
 (11) AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain exceptions, the Indenture or the Notes may be amended or
supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes voting as a single class, and any existing Default or Event of Default or compliance with any provision of the Indenture
or the Notes may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes voting as a single class. Without the consent of any Holder of Notes, the Indenture or the Notes may be amended or
supplemented to cure any ambiguity, 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 obligations to Holders of the Notes by a successor
to the Company pursuant to the Indenture, to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights under the Indenture of any Holder, or to conform the
text of the Indenture or the Notes to any provision of the “Description of the Notes” section of the Offering Circular, to the extent that such provision in that “Description of the Notes” was intended to be a verbatim recitation
of a provision of the Indenture or the Notes or to the extent the Notes are intended to be identical to the Existing Heckmann Notes, which intent may be evidenced by an Officers’ Certificate to that effect. 

(12) DEFAULTS AND REMEDIES. Events of Default include:
(i) default for 30 days in the payment when due of interest, if any, on, the Notes; (ii) default in the payment when due (at maturity, upon redemption or otherwise) of the principal of, or premium on, if any, the Notes; (iii) failure
by the Company or any of its Restricted Subsidiaries to comply with the provisions of Sections 4.10, 4.15 or 5.01 of the Indenture; (iv) failure by the Company or any of its Restricted Subsidiaries for 60 days after notice to the Company by the
Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding voting as a single class to comply with any of the other agreements in the Indenture; (v) default under certain other agreements relating to
Indebtedness of the Company which default is a Payment Default or results in the acceleration of such Indebtedness prior to its express maturity; (vi) failure by the Company or any of its Restricted Subsidiaries to pay certain final judgments,
which judgments are not paid, discharged or stayed, for a period of 60 days; and (vii) certain events of bankruptcy or insolvency with respect to the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of
Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary. In the case of an Event of Default arising from certain events of bankruptcy or insolvency with respect to the Company, any Restricted Subsidiary of the Company
that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable immediately without further action or notice.
If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately. Holders may not enforce the
Indenture or the Notes except as provided in the Indenture. Subject to certain limitations, Holders of a majority in aggregate principal amount of the then outstanding Notes may direct the time, method and place of conducting any proceeding for
exercising any remedy available to the Trustee or exercising any trust or power conferred on it. The Trustee may 

  
 A1-6

 
withhold from Holders of the Notes notice of any continuing Default or Event of Default (except a Default or Event of Default relating to the payment of principal, premium, if any, or interest,
if any,) if it determines that withholding notice is in their interest. The Holders of a majority in aggregate principal amount of the then outstanding Notes by notice to the Trustee may, on behalf of all the Holders of Notes, rescind an
acceleration or waive an existing Default or Event of Default and its respective consequences under the Indenture except a continuing Default or Event of Default in the payment of principal of, premium on, if any, or interest, if any, on, the Notes
(including in connection with an offer to purchase). The Company is required to deliver to the Trustee annually a statement regarding compliance with the Indenture, and the Company is required, upon becoming aware of any Default or Event of Default,
to deliver to the Trustee a statement specifying such Default or Event of Default. 
 (13)
TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Company or
its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not the Trustee. 
 (14)
NO RECOURSE AGAINST OTHERS. No director, officer, employee, incorporator or stockholder of the Company, as such, will have any liability for any obligations of the
Company under the Notes, the Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of
the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws. 
 (15) AUTHENTICATION. This Note will not be valid until authenticated by the manual signature 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 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 INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THE INDENTURE AND
THIS NOTE WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. 
 The Company will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to: 
 Rough Rider Escrow, Inc. 
 c/o Heckmann Corporation 

Cherrington Parkway 

  
 A1-7

 Suite 200 
 Coraopolis, PA 15108 
 Tel: (412) 329-7275 

Attention: Chief Legal Officer 

  
 A1-8

 ASSIGNMENT FORM 

To assign this Note, fill in the form below: 
  

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

		 	(Insert assignee’s legal name)
	
	  

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

	  

	  

	  

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

  

			
	and irrevocably appoint	 	  

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

 

							
	Date:                     	 		 		 	
		 		 	Your Signature:	 	  

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

  

					
	 Signature Guarantee*:
	 	  
	  	

  

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

  
 A1-9

 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 Indenture, check the appropriate box below: 

 ̈  Section 4.10          
           ̈  Section 4.15 
 If you want to elect to have only part of the Note purchased by the Company pursuant to Section 4.10 or Section 4.15 of the Indenture, state the amount you elect to have purchased: 

$                    

  

							
	 Date:
                    
  
	 		 		 	
		 		 	Your Signature:	 	  

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

  

							
		 		 	Tax Identification No.:	 	  

  

					
	 Signature Guarantee*:
	 	  
	  	

  

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

  
 A1-10

 SCHEDULE OF EXCHANGES OF
INTERESTS IN THE GLOBAL NOTE 
 The following
exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: 

 

									
	 Date of Exchange
	  	Amount of
decrease in
Principal Amount
of this Global Note	  	Amount of
increase in
Principal Amount
of 
this Global Note	  	Principal Amount 
of this Global Note
following such
decrease 
(or increase)	  	Signature of
authorized officer
of Trustee or
Custodian
		  		  		  		  	
		  		  		  		  	

  
 A1-11

 EXHIBIT A2 
 [Face of Regulation S Temporary Global Note] 
  

CUSIP/CINS              

9.875% Senior Notes due 2018 
  

			
	No.     	  	$            

 ROUGH RIDER ESCROW, INC. 
 promises to pay to              or registered assigns, 
 the principal sum of
                                         DOLLARS
on April 15, 2018. 
 Interest Payment Dates: April 15 and October 15 
 Record Dates: April 1 and October 1 
 Dated:
                     
  

			
	ROUGH RIDER ESCROW, INC.
		
	By:	 	  

		 	Name:
		 	Title:

  

			
	This is one of the Notes referred to in the within-mentioned Indenture:
	
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	By:	 	  

		 	Authorized Signatory

  
  

  
 A2-1

 [Back of Regulation S Temporary Note] 

9.875% Senior Notes due 2018 

THE RIGHTS ATTACHING TO THIS REGULATION S TEMPORARY GLOBAL NOTE, AND THE CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR DEFINITIVE NOTES, ARE AS
SPECIFIED IN THE INDENTURE (AS DEFINED HEREIN). NEITHER THE HOLDER NOR THE BENEFICIAL OWNERS OF THIS REGULATION S TEMPORARY GLOBAL NOTE SHALL BE ENTITLED TO RECEIVE PAYMENT OF INTEREST HEREON. 

THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL
OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN
WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR
DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY. 
 UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM,
THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR
DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) (“DTC”), TO THE COMPANY OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO.
OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
INTEREST HEREIN. 
 THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY
STATE SECURITIES LAWS. 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, REGISTRATION. 
 THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A
“QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT), (B) IT IS A NON-U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT AND
IN ACCORDANCE WITH THE LAWS APPLICABLE TO SUCH PURCHASERS IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE OR (C) IT IS AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 UNDER THE SECURITIES

  
 A2-2

 
ACT AND (2) AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144
UNDER THE SECURITIES ACT, ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER”
AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHICH NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) 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 AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, (D) TO AN
“ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW
TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (E) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, OR (F) PURSUANT TO ANOTHER AVAILABLE
EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S, OR REGISTRAR’S, AS APPLICABLE, RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (C), (D) OR
(F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND IN EACH OF THE FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY IS
COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE OR REGISTRAR. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 UNDER
THE SECURITIES ACT. 
 Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below
unless otherwise indicated. 
 (1) INTEREST. Rough Rider Escrow, Inc., a
Delaware corporation (the “Company”), promises to pay or cause to be paid interest on the principal amount of this Note at 9.875% per annum from             ,
         until maturity. The Company will pay interest, if any, semi-annually in arrears on April 15 and October 15 of each year, 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 the date of issuance; provided that, 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; provided further that the first Interest Payment
Date shall be             ,         . The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on
overdue principal at a rate that is 1% higher than the then applicable interest rate on the Notes to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of
interest, if any (without regard to any applicable grace period), at the same rate to the extent lawful. 
 Interest will be
computed on the basis of a 360-day year comprised of twelve 30-day months. 

  
 A2-3

 Until this Regulation S Temporary Global Note is exchanged for one or more Regulation S
Permanent Global Notes, the Holder hereof shall not be entitled to receive payments of interest hereon; until so exchanged in full, this Regulation S Temporary Global Note shall in all other respects be entitled to the same benefits as other Notes
under the Indenture. 
 (2) METHOD OF PAYMENT.
The Company will pay interest on the Notes (except defaulted interest), if any, to the Persons who are registered Holders of Notes at the close of business on the April 1 or October 1 next preceding the Interest Payment Date, even if such
Notes are canceled after such record date and on or before such Interest Payment Date, except as provided in Section 2.12 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium, if any, and
interest, if any, at the office or agency of the Paying Agent and Registrar within the City and State of New York, or, at the option of the Company, payment of interest, if any, may be made by check mailed to the Holders at their addresses set forth
in the register of Holders; provided that payment by wire transfer of immediately available funds will be required with respect to principal of, premium on, if any, and interest, if any, on, all Global Notes and all other Notes the Holders of
which will have provided wire transfer instructions to the Company or the Paying Agent. Such payment will be in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts.

 (3) PAYING AGENT AND
REGISTRAR. Initially, The Bank of New York Mellon Trust Company, N.A., the Trustee under the Indenture, will act as Paying Agent and Registrar. The Company may change the Paying Agent or Registrar without prior
notice to the Holders of the Notes. The Company or any of its Subsidiaries may act as Paying Agent or Registrar. 

(4) INDENTURE. The Company issued the Notes under an Indenture dated as of
November 5, 2012 (the “Indenture”) by and between the Company and the Trustee. The terms of the Notes include those stated in the Indenture. The Notes are subject to all such terms, and Holders are referred to the Indenture for
a statement of such terms. To the extent any provision of this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Notes are unsecured obligations of the Company. The
aggregate principal amount of Notes outstanding at any time may not exceed $150.0 million, except as provided in Section 2.07 of the Indenture. 
 (5) OPTIONAL REDEMPTION. 
 (a)
At any time prior to April 15, 2015, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under the Indenture, upon not less than 30 nor more than 60 days’ notice, at a redemption
price equal to 109.875% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to the date of redemption (subject to the rights of Holders of Notes on the relevant record date to receive interest on the relevant
Interest Payment Date), with the net cash proceeds of an Equity Offering by the Company; provided that: 

(i) at least 65% of the aggregate principal amount of Notes originally issued under the Indenture (excluding Notes held
by the Company and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and 
 (ii) the redemption occurs within 45 days of the date of the closing of such Equity Offering. 

  
 A2-4

 (b) At any time prior to April 15, 2015, the Company may on any one or
more occasions redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to 100% of the principal amount of the Notes redeemed, plus the Applicable Premium as of, and accrued and unpaid
interest, if any, to the applicable date of redemption, subject to the rights of Holders on the relevant record date to receive interest due on the relevant Interest Payment Date. 

(c) Except pursuant to the preceding paragraphs, the Notes will not be redeemable at the Company’s option prior to
April 15, 2015. 
 (d) On or after April 15, 2015, the Company may on any one or more occasions redeem
all or a part of the Notes, upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest, if any, on the Notes redeemed, to the
applicable date of redemption, if redeemed during the twelve-month period beginning on April 15 of the years indicated below, subject to the rights of Holders on the relevant record date to receive interest on the relevant Interest Payment
Date: 
  

					
	 Year
	  	Percentage	 
	 2015
	  	 	104.938	% 
	 2016
	  	 	102.469	% 
	 2017 and thereafter
	  	 	100.000	% 

 Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on the
Notes or portions thereof called for redemption on the applicable redemption date. 
 (6)
ESCROW OF PROCEEDS; MANDATORY REDEMPTION. The Notes are subject to the provisions of an Escrow Agreement between the Company and The Bank of New York
Mellon Trust Company, N.A., as Escrow Agent. Except as set forth below under clause (a) (“Special Redemption”) or (b) (“Stage II Notes Exchange Redemption”), the Company is not required to make mandatory
redemption or sinking fund payments with respect to the Notes. 
 (a) Special Redemption. If the Merger
shall not have occurred on or prior to the Termination Date (or the Merger shall have been terminated or abandoned prior to such date), the Company shall, no later than the third Business Day following the Termination Date (or such earlier date on
which the Merger shall have been terminated or abandoned), redeem all of the Notes then outstanding (the “Special Redemption”) at a redemption price equal to 100.250% of the aggregate principal amount thereof, together with accrued
but unpaid interest (including, for the avoidance of doubt, pre-issuance interest) thereon from October 15, 2012 to the date of such redemption (the “Special Redemption Date”) (subject to the right of Holders of record on the
relevant record date to receive interest due on the relevant interest payment date). The Company shall calculate the total redemption amount due to Holders pursuant to the preceding sentence and notify the Trustee of such amount prior to the Special
Redemption Date. 
 The Company will pay, through the Paying Agent, using the Escrowed Funds, such redemption
price for all Notes together with accrued and unpaid interest to the Special Redemption Date. On and after the Special Redemption Date, interest will cease to accrue on Notes called for redemption as long as the Company has deposited with the Paying
Agent funds in satisfaction of such redemption price pursuant to the Indenture. 

  
 A2-5

 (b) Stage II Notes Exchange Redemption. If the Merger shall have
occurred on or prior to the Termination Date, the Company shall, no later than the third Business Day following the consummation of the Merger, redeem all of the Notes then outstanding (the “Stage II Notes Exchange Redemption”) at a
redemption price equal to 100% of the aggregate principal amount thereof. Notwithstanding anything to the contrary in any Note or the Indenture or any other document, the consideration paid to each Holder on the date of such Stage II Notes Exchange
Redemption (the “Exchange Redemption Date”) to redeem its Notes shall only consist of Stage II Notes issued by Heckmann (promptly following the merger of Rough Rider with and into Heckmann in accordance with the provisions of
Section 5.01 of the Indenture) in exchange for a like principal amount of such Notes and having the terms set forth in the Stage II Indenture. Unless the Exchange Redemption Date is a scheduled interest payment date for the Notes, the Company
shall not be obligated to pay to any Holder any accrued and unpaid interest to the Exchange Redemption Date in connection with the Stage II Notes Exchange Redemption, which accrued and unpaid interest will be evidenced by the Stage II Notes issued
to such Holder in exchange for its Notes (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date). 

The Company will only pay such redemption price for any Note through the issuance of a Stage II Note having the same
principal amount as such Note. Each Holder shall surrender all of its Notes upon issuance of a like principal amount of Stage II Notes in accordance with the preceding paragraph under this clause (b). On and after the Exchange Redemption Date,
interest will cease to accrue on Notes called for redemption and the Notes and the Indenture will be deemed to have been satisfied and discharged in full as long as Heckmann has issued to each Holder Stage II Notes in accordance with the preceding
paragraph under this clause (b). 
 (7) REPURCHASE AT THE
OPTION OF HOLDER. 
 (a) Upon the occurrence of a
Change of Control, the Company will be required to make an offer (a “Change of Control Offer”) to each Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s
Notes at a purchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to the date of purchase, subject to the rights of Holders of Notes on the
relevant record date to receive interest due on the relevant Interest Payment Date (the “Change of Control Payment”). Within 20 days following any Change of Control, the Company will mail a notice to each Holder setting forth the
procedures governing the Change of Control Offer as required by the Indenture. 
 (b) If the Company or a
Restricted Subsidiary of the Company consummates any Asset Sales, within 10 days of each date on which the aggregate amount of Excess Proceeds exceeds $25.0 million, the Company will make an Asset Sale Offer to all Holders of Notes and all holders
of other Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in the Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets in accordance with the
Indenture to purchase, prepay or redeem the maximum principal amount of Notes and such other pari passu Indebtedness (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in
connection therewith) that may be purchased, prepaid or redeemed out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to the date of purchase,
prepayment or redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant Interest Payment 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 

  
 A2-6

 
purpose not otherwise prohibited by the Indenture. If the aggregate principal amount of Notes and other pari passu Indebtedness tendered in (or required to be prepaid or redeemed in
connection with) such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee (or Depositary) will select the Notes and the applicable party shall select such other pari passu Indebtedness to be purchased on a pro rata
basis (subject to Applicable Procedures), based on the amounts tendered or required to be prepaid or redeemed. Upon completion of each Asset Sale Offer, the amount of Excess Proceeds will be reset at zero. 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” attached to the
Notes. 
 (8) NOTICE OF REDEMPTION. Subject to
Section 3.08 of the Indenture, at least 30 days but not more than 60 days before a redemption date, the Company will mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its
registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of the Indenture pursuant to Articles
8 or 10 thereof. Notes and portions of Notes selected will be in amounts of $2,000 or whole multiples of $1,000 in excess thereof; except that if all of the Notes of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes
held by such Holder shall be redeemed or purchased. 
 (9) DENOMINATIONS,
TRANSFER, EXCHANGE. THE NOTES ARE IN REGISTERED FORM IN denominations of $2,000 and integral
multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as provided in the Indenture. The Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and
transfer documents and the Company may require a Holder to pay any taxes and fees required by law or permitted by the Indenture. The Company need not exchange or register the transfer of any Note or portion of a Note selected for redemption, except
for the unredeemed portion of any Note being redeemed in part. Also, the Company need not exchange or register the transfer of any Notes for a period of 15 days before a selection of Notes to be redeemed or during the period between a record date
and the next succeeding Interest Payment Date. 
 This Regulation S Temporary Global Note is exchangeable in
whole or in part for one or more Global Notes only (i) on or after the termination of the 40-day distribution compliance period (as defined in Regulation S) and (ii) upon presentation of certificates (accompanied by an Opinion of Counsel,
if applicable) required by Article 2 of the Indenture. Upon exchange of this Regulation S Temporary Global Note for one or more Global Notes, the Trustee shall cancel this Regulation S Temporary Global Note. 

(10) PERSONS DEEMED OWNERS. The registered Holder of a
Note may be treated as the owner of it for all purposes. Only registered Holders have rights under the Indenture. 
 (11) AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain exceptions, the Indenture or the Notes may be amended or
supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes voting as a single class, and any existing Default or Event of Default or compliance with any provision of the Indenture
or the Notes may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes voting as a single class. Without the consent of any Holder of Notes, the Indenture or the Notes may be amended or
supplemented to cure any ambiguity, 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 obligations to Holders of the

  
 A2-7

 
Notes by a successor to the Company pursuant to the Indenture, to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely
affect the legal rights under the Indenture of any Holder, or to conform the text of the Indenture or the Notes to any provision of the “Description of the Notes” section of the Offering Circular, to the extent that such provision in that
“Description of the Notes” was intended to be a verbatim recitation of a provision of the Indenture or the Notes or to the extent the Notes are intended to be identical to the Existing Heckmann Notes, which intent may be evidenced by an
Officers’ Certificate to that effect. 
 (12) DEFAULTS AND
REMEDIES. Events of Default include: (i) default for 30 days in the payment when due of interest, if any, on, the Notes; (ii) default in the payment when due (at maturity, upon redemption or otherwise) of
the principal of, or premium on, if any, the Notes; (iii) failure by the Company or any of its Restricted Subsidiaries to comply with the provisions of Sections 4.10, 4.15 or 5.01 of the Indenture; (iv) failure by the Company or any of its
Restricted Subsidiaries for 60 days after notice to the Company by the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding voting as a single class to comply with any of the other agreements in the
Indenture; (v) default under certain other agreements relating to Indebtedness of the Company which default is a Payment Default or results in the acceleration of such Indebtedness prior to its express maturity; (vi) failure by the Company
or any of its Restricted Subsidiaries to pay certain final judgments, which judgments are not paid, discharged or stayed, for a period of 60 days; and (vii) certain events of bankruptcy or insolvency with respect to the Company or any of its
Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary. In the case of an Event of Default arising from certain events of bankruptcy or
insolvency with respect to the Company, any Restricted Subsidiary of the Company that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, all outstanding
Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes may
declare all the Notes to be due and payable immediately. Holders may not enforce the Indenture or the Notes except as provided in the Indenture. Subject to certain limitations, Holders of a majority in aggregate principal amount of the then
outstanding Notes may direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee or exercising any trust or power conferred on it. The Trustee may withhold from Holders of the Notes notice of
any continuing Default or Event of Default (except a Default or Event of Default relating to the payment of principal, premium, if any, or interest, if any,) if it determines that withholding notice is in their interest. The Holders of a majority in
aggregate principal amount of the then outstanding Notes by notice to the Trustee may, on behalf of all the Holders of Notes, rescind an acceleration or waive an existing Default or Event of Default and its respective consequences under the
Indenture except a continuing Default or Event of Default in the payment of principal of, premium on, if any, or interest, if any, on, the Notes (including in connection with an offer to purchase). The Company is required to deliver to the Trustee
annually a statement regarding compliance with the Indenture, and the Company is required, upon becoming aware of any Default or Event of Default, to deliver to the Trustee a statement specifying such Default or Event of Default. 

(13) TRUSTEE DEALINGS WITH COMPANY. The
Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Company or its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not the Trustee. 

  
 A2-8

 (14) NO RECOURSE AGAINST
OTHERS. No director, officer, employee, incorporator or stockholder of the Company, as such, will have any liability for any obligations of the Company under the Notes, the Indenture or for any claim based on, in
respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be
effective to waive liabilities under the federal securities laws. 
 (15)
AUTHENTICATION. This Note will not be valid until authenticated by the manual signature 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 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 INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THE INDENTURE AND
THIS NOTE WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. 
 The Company will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to: 
 Rough Rider Escrow, Inc. 
 c/o Heckmann Corporation 

Cherrington Parkway 
 Suite 200 

Coraopolis, PA 15108 
 Tel: (412) 329-7275

 Attention: Chief Legal Officer 

  
 A2-9

 ASSIGNMENT FORM 

To assign this Note, fill in the form below: 
  

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

		 	(Insert assignee’s legal name)
	
	  

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

	  

	  

	  

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

  

			
	and irrevocably appoint	 	  

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

 

							
	Date:                     	 		 		 	
		 		 	Your Signature:	 	  

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

  

					
	 Signature Guarantee*:
	 	  
	  	

  

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

  
 A2-10

 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 Indenture, check the appropriate box below: 

 ̈  Section
4.10                     ̈  Section 4.15 

If you want to elect to have only part of the Note purchased by the Company pursuant to Section 4.10 or Section 4.15 of the
Indenture, state the amount you elect to have purchased: 

$                    

 Date:                     

  

							
		 		 	Your Signature:	 	  

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

  

					
	 Signature Guarantee*:
	 	  
	  	

  

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

  
 A2-11

 SCHEDULE OF EXCHANGES OF
INTERESTS IN THE REGULATION S TEMPORARY GLOBAL NOTE 
 The following exchanges of a part of this Regulation S Temporary Global Note for an interest in another Global Note, or exchanges of a part of another Restricted Global Note for an interest in this
Regulation S Temporary Global Note, have been made: 
  

									
	 Date of Exchange
	  	Amount of
decrease in
Principal Amount
of this Global Note	  	Amount of
increase
in
Principal Amount
of
this Global Note	  	Principal Amount
of this Global 
Note
following such
decrease
(or increase)	  	Signature of
authorized officer
of Trustee or
Custodian
		  		  		  		  	
		  		  		  		  	

  
 A2-12

 EXHIBIT B 
 FORM OF CERTIFICATE OF TRANSFER 
 Rough Rider Escrow, Inc. 

c/o Heckmann Corporation 
 300 Cherrington
Parkway 
 Suite 200 
 Coraopolis, PA
15108 
 The Bank of New York Mellon Trust Company, N.A. 
 525 William Penn Place, 38th Floor 
 Pittsburgh, PA 15259 

Attention: Corporate Trust Administration 
 Re: 9.875% Senior Notes due 2018 
 Reference is hereby made to the
Indenture, dated as of November 5, 2012 (the “Indenture”), by and between Rough Rider Escrow, Inc., as issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as trustee. Capitalized terms
used but not defined herein shall have the meanings given to them in the Indenture. 

                    , (the
“Transferor”) owns and proposes to transfer the Note[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $             in such Note[s] or
interests (the “Transfer”), to                             (the
“Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that: 
 [CHECK ALL THAT APPLY] 
 1.  ̈
Check if Transferee will take delivery of a beneficial interest in the 144A Global Note or a Restricted Definitive Note pursuant to Rule 144A. The Transfer is being effected pursuant to and in accordance with Rule 144A under the
Securities Act of 1933, as amended (the “Securities Act”), and, accordingly, the Transferor hereby further certifies that the beneficial interest or Definitive Note is being transferred to a Person that the Transferor reasonably
believes is purchasing the beneficial interest or Definitive Note for its own account, or for one or more accounts with respect to which such Person exercises sole investment discretion, and such Person and each such account is a “qualified
institutional buyer” within the meaning of Rule 144A in a transaction meeting the requirements of Rule 144A, and such Transfer is in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of
the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the 144A Global Note
and/or the Restricted Definitive Note and in the Indenture and the Securities Act. 
 2.
 ̈ Check if Transferee will take delivery of a beneficial interest in the Regulation S Temporary Global Note, the Regulation S Permanent Global Note or a Restricted Definitive Note pursuant to
Regulation S. The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and, accordingly, the Transferor hereby further certifies that (i) the Transfer is not being made to a Person
in the United States and (x) at the time the buy order was originated, the Transferee was outside the United States or such Transferor and any Person acting on its behalf reasonably believed and believes that the Transferee was outside the
United States or (y) the transaction was executed in, on or through the facilities of a designated offshore securities market and neither such Transferor nor any Person acting on its behalf knows that the transaction was prearranged

  
 B-1

 
with a buyer in the United States, (ii) no directed selling efforts have been made in contravention of the requirements of Rule 903(b) or Rule 904(b) of Regulation S under the Securities
Act, (iii) the transaction is not part of a plan or scheme to evade the registration requirements of the Securities Act and (iv) if the proposed transfer is being made prior to the expiration of the Restricted Period, the transfer is not
being made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Upon consummation of the proposed transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive
Note will be subject to the restrictions on Transfer enumerated in the Private Placement Legend printed on the Regulation S Permanent Global Note, the Regulation S Temporary Global Note and/or the Restricted Definitive Note and in the Indenture and
the Securities Act. 
 3.  ̈ Check and complete if Transferee will take
delivery of a beneficial interest in the IAI Global Note or a Restricted Definitive Note pursuant to any provision of the Securities Act other than Rule 144A or Regulation S. The Transfer is being effected in compliance with the transfer
restrictions applicable to beneficial interests in Restricted Global Notes and Restricted Definitive Notes and pursuant to and in accordance with the Securities Act and any applicable blue sky securities laws of any state of the United States, and
accordingly the Transferor hereby further certifies that (check one): 
 (a)
 ̈ such Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act; 
 or 
 (b)  ̈ such
Transfer is being effected to the Company or a subsidiary thereof; 
 or 

(c)  ̈ such Transfer is being effected pursuant to an effective
registration statement under the Securities Act and in compliance with the prospectus delivery requirements of the Securities Act; 
 or 
 (d)  ̈ such
Transfer is being effected to an Institutional Accredited Investor and pursuant to an exemption from the registration requirements of the Securities Act other than Rule 144A, Rule 144, Rule 903 or Rule 904, and the Transferor hereby further
certifies that it has not engaged in any general solicitation within the meaning of Regulation D under the Securities Act and the Transfer complies with the transfer restrictions applicable to beneficial interests in a Restricted Global Note or
Restricted Definitive Notes and the requirements of the exemption claimed, which certification is supported by (1) a certificate executed by the Transferee in the form of Exhibit D to the Indenture and (2) an Opinion of Counsel provided by
the Transferor or the Transferee (a copy of which the Transferor has attached to this certification), to the effect that such Transfer is in compliance with the Securities Act. Upon consummation of the proposed transfer in accordance with the terms
of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the IAI Global Note and/or the Restricted Definitive Notes and in the
Indenture and the Securities Act. 
 4.  ̈ Check if Transferee will take
delivery of a beneficial interest in an Unrestricted Global Note or of an Unrestricted Definitive Note. 

  
 B-2

 (a)  ̈ Check if Transfer is pursuant to
Rule 144. (i) The Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any
state of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in
accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on
Restricted Definitive Notes and in the Indenture. 
 (b)  ̈ Check if Transfer
is Pursuant to Regulation S. (i) The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable
blue sky securities laws of any state of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon
consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed
on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture. 
 (c)
 ̈ Check if Transfer is Pursuant to Other Exemption. (i) The Transfer is being effected pursuant to and in compliance with an exemption from the registration requirements of the Securities
Act other than Rule 144, Rule 903 or Rule 904 and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any State of the United States and (ii) the restrictions on transfer
contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred
beneficial interest or Definitive Note will not be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes or Restricted Definitive Notes and in the Indenture. 

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

 

			
	
	  

		 	[Insert Name of Transferor]
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		 	 Dated:
	 	  

  
 B-3

 ANNEX A TO CERTIFICATE OF TRANSFER 

 

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

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

	 	(a)	 ̈ a beneficial interest in the: 

 

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

  

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

  

	 	(iii)	 ̈ IAI Global Note (CUSIP             ); or

  

	 	(b)	 ̈ a Restricted Definitive Note. 

 

	2.	After the Transfer the Transferee will hold: 

 [CHECK ONE] 
  

	 	(a)	 ̈ a beneficial interest in the: 

 

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

  

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

  

	 	(iii)	 ̈ IAI Global Note (CUSIP             ); or

  

	 	(iv)	 ̈ Unrestricted Global Note (CUSIP             ); or

  

	 	(b)	 ̈ a Restricted Definitive Note; or 

 

	 	(c)	 ̈ an Unrestricted Definitive Note, 

in accordance with the terms of the Indenture. 

  
 B-4

 EXHIBIT C 
 FORM OF CERTIFICATE OF EXCHANGE 
 Rough Rider Escrow, Inc. 

c/o Heckmann Corporation 
 300 Cherrington
Parkway 
 Suite 200 
 Coraopolis, PA
15108 
 The Bank of New York Mellon Trust Company, N.A. 
 525 William Penn Place, 38th Floor 
 Pittsburgh, PA 15259 

Attention: Corporate Trust Administration 
 Re: 9.875% Senior Notes due 2018 
 (CUSIP
[        ]) 
 Reference is hereby made to the Indenture, dated as of November 5,
2012 (the “Indenture”), by and between Rough Rider Escrow, Inc., as issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as trustee. Capitalized terms used but not defined herein shall have
the meanings given to them in the Indenture. 

                    , (the
“Owner”) owns and proposes to exchange the Note[s] or interest in such Note[s] specified herein, in the principal amount of $             in such Note[s] or interests (the
“Exchange”). In connection with the Exchange, the Owner hereby certifies that: 
 1. Exchange of
Restricted Definitive Notes or Beneficial Interests in a Restricted Global Note for Unrestricted Definitive Notes or Beneficial Interests in an Unrestricted Global Note 

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

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

  
 C-1

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

(a)  ̈ Check if Exchange is from beneficial interest in a Restricted Global Note to
Restricted Definitive Note. In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for a Restricted Definitive Note with an equal principal amount, the Owner hereby certifies that the Restricted
Definitive Note is being acquired for the Owner’s own account without transfer. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the Restricted Definitive Note issued will continue to be subject to the
restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Definitive Note and in the Indenture and the Securities Act. 
 (b)  ̈ Check if Exchange is from Restricted Definitive Note to beneficial interest in a Restricted Global Note. In connection with the Exchange of the
Owner’s Restricted Definitive Note for a beneficial interest in the [CHECK ONE]  ̈ 144A Global Note,  ̈ Regulation S Global Note,  ̈ IAI Global Note with an equal principal amount, the Owner hereby certifies (i) the beneficial
interest is being acquired for the Owner’s own account without transfer and (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with
the Securities Act, and in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the beneficial interest issued will be
subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the relevant Restricted Global Note and in the Indenture and the Securities Act. 
 This certificate and the statements contained herein are made for your benefit and the benefit of the Company. 

 

			
		 	  

	[Insert Name of Transferor]

  
 C-2

			
	By:	 	  

		 	Name:
		 	Title:

  

			
	Dated:	 	  

  
 C-3

 EXHIBIT D 
 FORM OF CERTIFICATE FROM 
 ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR 

Rough Rider Escrow, Inc 
 c/o Heckmann
Corporation 
 300 Cherrington Parkway 

Suite 200 
 Coraopolis, PA 15108 

The Bank of New York Mellon Trust Company, N.A. 

525 William Penn Place, 38th Floor 
 Pittsburgh,
PA 15259 
 Attention: Corporate Trust Administration 
 Re: 9.875% Senior Notes due 2018 
 Reference is hereby made to the
Indenture, dated as of November 5, 2012 (the “Indenture”), by and between Rough Rider Escrow, Inc., as issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as trustee. Capitalized terms
used but not defined herein shall have the meanings given to them in the Indenture. 
 In connection with our proposed purchase
of $             aggregate principal amount of: 
 (a)  ̈ a beneficial interest in a Global Note, or 
 (b)
 ̈ a Definitive Note, 
 we confirm that: 

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

  
 D-1

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

 

			
	  

		 	[Insert Name of Accredited Investor]
		
	By:	 	  

		 	Name:
		 	Title:

  

			
	Dated:	 	  

  
 D-2Security and Escrow Agreement

 Exhibit 4.2 
 SECURITY AND ESCROW AGREEMENT 
 THIS SECURITY AND ESCROW AGREEMENT
(this “Escrow Agreement”) is made and entered into as of November 5, 2012 by and among ROUGH RIDER ESCROW, INC., a Delaware corporation (the “Company”), THE BANK OF NEW YORK MELLON TRUST COMPANY,
N.A., as trustee (the “Stage I Trustee,” and, together with the Company, the “Other Parties”) under the Stage I Indenture (as defined below), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as
escrow agent (the “Escrow Agent”). 
 W I T N E S S E T H: 

WHEREAS, this Escrow Agreement is being entered into in connection with the offering (the “Offering”) by
the Company of $150,000,000 in aggregate principal amount of its 9.875% Senior Notes due 2018 (the “Stage I Notes”); 
 WHEREAS, the proceeds of the Offering will be used to finance a portion of the merger consideration under the Agreement and Plan of Merger, dated as of September 3, 2012 (the
“Merger Agreement”), by and among Heckmann Corporation (“Heckmann”), Rough Rider Acquisition, LLC (“Merger Sub”), Badlands Power Fuels, LLC (formerly, Badlands Energy, LLC)
(“Power Fuels”) and the sole owner of Power Fuels, whereby Power Fuels will merge with and into Merger Sub, with Merger Sub continuing as the surviving company and a wholly-owned subsidiary of Heckmann (the
“Merger”), and related fees and expenses; 
 WHEREAS, the Company and the Stage I Trustee have
entered into an Indenture, dated as of the date hereof (as amended, supplemented, restated or otherwise modified from time to time, the “Stage I Indenture”), pursuant to which the Company is issuing the Stage I Notes;

 WHEREAS, concurrently with the closing of the Offering, the Company has agreed to place in escrow the Deposit (as
defined below), to be held pursuant to and subject to the terms and conditions of this Escrow Agreement; 
 WHEREAS, the
Company will not have rights in and to the Stage I Notes Amount (as defined below) except as provided in this Escrow Agreement; 

WHEREAS, the Company has agreed to grant to the Stage I Trustee a security interest in the Collateral (as defined below) for the
benefit of the Stage I Trustee and the ratable benefit of the Holders (as defined below); 
 WHEREAS, upon the
satisfaction of the conditions (as set forth herein) to the disbursement of the Deposit, the Escrow Agent shall release and deliver the Deposit for the purposes set forth herein; and 

WHEREAS, the Company wishes to engage the Escrow Agent to act, and the Escrow Agent is willing to act, as escrow agent hereunder
and, in that capacity, to hold, administer and distribute the amounts deposited in escrow hereunder in accordance with, and subject to, the terms of this Escrow Agreement; 

 NOW, THEREFORE, in consideration of the premises and mutual covenants and agreements
contained herein, the parties hereto hereby agree as follows: 
 1. Appointment of Escrow Agent. The Company
hereby appoints the Escrow Agent as the escrow agent under this Escrow Agreement, and the Escrow Agent hereby accepts such appointment. 
 2. Deposit. Concurrently with the execution and delivery of this Escrow Agreement, the Company shall cause the Initial Purchasers to deliver to the Escrow Agent the net proceeds from the
sale of the Stage I Notes consisting of $147,822,916.67 (one hundred forty-seven million, eight hundred twenty-two thousand, nine hundred sixteen dollars and sixty-seven cents) in immediately available funds (the “Stage I Notes
Amount”) and the Company will deliver or cause to be delivered to the Escrow Agent an additional $7,270,000.00 (seven million, two hundred seventy thousand dollars and no cents) in cash or otherwise immediately available funds (the
“Company Provided Funds” and, together with the Stage I Notes Amount, the “Deposit”), to be held by the Escrow Agent in accordance with the terms hereof. Subject to and in accordance with the terms and
conditions hereof, the Escrow Agent agrees to hold the Deposit in an account established by the Company with the Escrow Agent (the “Escrow Account”), and to administer the Deposit in accordance with the terms of this Escrow
Agreement. The Company hereby acknowledges and agrees that the Deposit (or any part hereof) shall not be released to the Company, except as set forth in Section 5 hereof. 

3. Security Interest. 
 (a) Grant of Security Interest. The Company hereby irrevocably pledges, assigns and sets over to the Stage I Trustee, and grants to the Stage I Trustee, for the benefit of the Stage I Trustee and
the ratable benefit of the holders of the Stage I Notes (the “Holders”), a first priority continuing security interest in and lien on all of the Company’s right, title and interest in and to all of the following, whether
now owned or existing or hereafter acquired or created (collectively, the “Collateral”): 
 (i) the
Escrow Account; 
 (ii) all funds from time to time held in the Escrow Account, including, without limitation, the Deposit and
all certificates and instruments, if any, from time to time representing or evidencing the Escrow Account or the Deposit; 

(iii) all Permitted Escrow Investments (as defined in Section 4 herein) in the Escrow Account), whether held by or
registered in the name of the Escrow Agent or the Stage I Trustee or otherwise and all certificates and instruments, if any, from time to time representing or evidencing such investments; 

(iv) all interest, dividends, cash, instruments and other property from time to time received, receivable or otherwise distributed in
respect of or in exchange for any or all of the then existing Collateral; and 
 (vi) all proceeds of any of the foregoing,
including, without limitation, cash proceeds. 

  
 2 

 (b) Secured Obligations. This Escrow Agreement secures the due and punctual payment
and performance of all obligations and indebtedness of the Company, whether now or hereafter existing, under the Stage I Notes and the Stage I Indenture including, without limitation, interest, and premium, if any, accrued on the Stage I Notes after
the commencement of a bankruptcy, reorganization or similar proceeding involving the Company to the extent permitted by applicable law (collectively, the “Secured Obligations”). 

(c) Rights of the Stage I Trustee. The Escrow Agent shall hold and safeguard the Escrow Account during the term of this Escrow
Agreement and shall treat the cash, instruments and notes in the Escrow Account as monies, instruments and securities pledged by the Company to the Stage I Trustee for the benefit of the Stage I Trustee and the Holders, as agent solely for the Stage
I Trustee, in accordance with the provisions of this Escrow Agreement. The Escrow Agent, as securities intermediary (the “Securities Intermediary”) agrees that (i) the Escrow Account is and will be maintained as a
“securities account” (within the meaning of Section 8-501 of the Uniform Commercial Code as adopted in the State of New York (the “UCC”)); (ii) the Stage I Trustee is an “entitlement holder”
(within the meaning of Section 8-102(a)(7) of the UCC) in respect of the “financial assets” (within the meaning of Section 8-102(a)(9) of the UCC, the “Financial Assets”) credited to the Escrow Account and
(iii) all Financial Assets in registered form or payable to or to order and credited to the Escrow Account shall be registered in the name of, payable to or to the order of, or specially endorsed to, the Securities Intermediary or in blank, or
credited to another securities account maintained in the name of the Securities Intermediary, and in no case will any Financial Asset credited to the Escrow Account be registered in the name of, payable to or to the order of, or endorsed to, the
Company except to the extent the foregoing have been subsequently endorsed by the Company to the Securities Intermediary or in blank. Each item of property (including a security, security entitlement, investment property, instrument or obligation,
share, participation, interest or other property whatsoever) credited to the Escrow Account shall be treated as a Financial Asset. Until this Escrow Agreement shall terminate in accordance with the terms hereof, the Escrow Agent shall have sole
“control” (within the meaning of Section 8-106(d)(2) of the UCC) of the Company’s “security entitlements” (within the meaning of Section 8-102(a)(17) of the UCC) with respect to the Financial Assets credited to the
Escrow Account. If at any time the Securities Intermediary shall receive any order from the Stage I Trustee (acting at the direction of the Holders in accordance with the Stage I Indenture) directing transfer or redemption of any Financial Asset
relating to the Escrow Account in accordance with this Escrow Agreement, the Securities Intermediary shall comply with such entitlement order without further consent by the Company or any other person. The Escrow Agent will not comply or agree to
comply with any entitlement order with respect to any Financial Asset relating to the Escrow Account by any person other than the Stage I Trustee and, if in accordance with Section 5(a) hereof, the Company. 

(d) In the event that the Escrow Account is not considered a “securities account” (as defined in the UCC) under applicable law,
the Escrow Account shall be deemed to be a “deposit account” (as defined in the UCC) to the extent a security interest can be granted and perfected under the UCC in the Escrow Account as a deposit account, which the Stage I Trustee shall
maintain with the Escrow Agent acting not as a securities intermediary but as a “bank” (as defined in the UCC). The Stage I Trustee, acting on behalf of the Holders, shall be deemed the customer of the Escrow Agent for purposes of the
Escrow Account and as such shall be entitled to all the rights that customers of banks have under applicable law with respect to deposit accounts, including the right 

  
 3 

 
to withdraw funds from, or close, the Escrow Account. Subject to Sections 2 and 5(a) hereof, the Company, the Stage I Trustee, and the Escrow Agent agree that the Escrow Agent will
comply with instructions originated by the Stage I Trustee (acting at the direction of the Holders in accordance with the Stage I Indenture) directing disposition of the funds that constitute Collateral in the Escrow Account without further consent
by the Company or any other Person. The Escrow Agent shall not have title to the funds on deposit in the Escrow Account, and shall credit the Escrow Account with all receipts of interest, dividends, and other income received on the property held in
the Escrow Account. The Escrow Agent shall administer and manage the Escrow Account in compliance with all the terms applicable to the Escrow Account pursuant to the terms of this Agreement, and shall be subject to and comply with all the
obligations that the Escrow Agent owes to the Stage I Trustee with respect to the Escrow Account. 
 (f) The Stage I Trustee
hereby grants the Escrow Agent the authority to, and the Escrow Agent shall, in addition to carrying out instructions and orders given by the Stage I Trustee, carry out all instructions and orders given by the Company to the Escrow Agent in
accordance with Section 5(a), so long as no written notice (a “Default Notice”) of the occurrence and continuation of either a Default or Event of Default (each as defined in the Stage I Indenture) has been
delivered to the Escrow Agent by the Stage I Trustee. Notwithstanding anything to the contrary contained herein, if at any time the Escrow Agent shall receive conflicting orders or instructions from the Stage I Trustee and the Company, the Escrow
Agent shall follow the orders or instructions of the Stage I Trustee and not the Company. After a Default Notice has been delivered by the Stage I Trustee to the Escrow Agent and until the Deposit is released pursuant to Section 5 of
this Escrow Agreement, (A) the Escrow Agent shall take all actions and exercise all of its remedies with respect to the Escrow Account in accordance with this Escrow Agreement and shall disregard any instructions and orders given to the Escrow
Agent by the Company and (B) the Stage I Trustee may not take any actions or exercise any of its remedies (except for those contained in Section 7.02 of the Stage I Indenture) with respect to the Escrow Account in accordance with this
Escrow Agreement or the Stage I Indenture; provided, however, that in the case of certain events of bankruptcy or insolvency with respect to the Company, the Stage I Trustee may take any actions or exercise any of its remedies with
respect to the Escrow Account in accordance with this Escrow Agreement or the Stage I Indenture. If the Stage I Trustee withdraws its Default Notice at any time, then after such withdrawal, the Escrow Agent shall carry out all instructions and
orders given by the Company in accordance with Section 5(a) hereof. The Stage I Trustee agrees that (A) it may only deliver a Default Notice to the Escrow Agent upon the occurrence of a Default and/or an Event of Default under the
Stage I Indenture as to which it has notice pursuant to Section 7.02 of the Stage I Indenture and (B) that it shall withdraw such Default Notice if the Default and/or the Event of Default for which the Default Notice was delivered has been
cured or waived or is no longer continuing. In all events, the Stage I Trustee shall be entitled to direction from the Holders in accordance with the Stage I Indenture. 
 4. Investment of the Deposit. The Escrow Agent shall invest and reinvest the Deposit pursuant to the written instructions of the Company; provided, however, such investments
shall be limited to cash and Cash Equivalents (as defined in the Stage I Indenture, together with interest bearing or non-interest bearing bank deposits) (collectively, the “Permitted Escrow Investments”); provided,
further, that if the Stage I Trustee or the Company notifies the Escrow Agent that an event has occurred that constitutes an Event of Default under the Stage I Indenture and said event shall be continuing, the Company’s right to instruct
the Escrow Agent 

  
 4 

 
regarding the investment of the Deposit shall cease and the Escrow Agent shall no longer take direction from the Company, except that the last direction received from the Company prior to
the Stage I Trustee’s knowledge of an Event of Default shall remain valid, and the Stage I Trustee and Escrow Agent shall be fully protected in maintaining such investment or in holding all funds uninvested. The Escrow Agent shall not be liable
for failure to invest or reinvest funds absent sufficient written direction. Unless the Escrow Agent is otherwise directed in such written instructions, the Deposit shall remain uninvested. The Escrow Agent or any of its affiliates may receive
compensation with respect to any investment directed hereunder. It is expressly agreed and understood by the parties hereto that the Escrow Agent shall not in any way whatsoever be liable for losses on any investments, including, but not limited to,
losses from market risks due to premature liquidation or resulting from other actions taken pursuant to this Escrow Agreement. 

Receipt, investment and reinvestment of the Deposit shall be confirmed by the Escrow Agent as soon as practicable by account statement,
and any discrepancies in any such account statement shall be noted by the Company to the Escrow Agent within sixty (60) calendar days after receipt thereof. Failure to inform the Escrow Agent in writing of any discrepancies in any such account
statement within said sixty (60) day period shall conclusively be deemed confirmation of such account statement in its entirety. For purposes of this paragraph, (a) each account statement shall be deemed to have been received by the party
to whom directed on the earlier to occur of (i) actual receipt thereof and (ii) three (3) Business Days (as defined herein) after the deposit thereof in the United States mail, postage prepaid (registered or certified, return receipt
requested) and (b) the term “Business Day” shall mean any day of the year, excluding Saturday, Sunday and any other day on which national banks are required or authorized to close in New York, New York. 

5. Disbursement of Deposit. (a) Subject to Section 3 of this Escrow Agreement, the Escrow Agent is hereby
authorized to make disbursements of the Deposit only as follows: 
 (i) on or prior to December 31, 2012, the Company may
obtain a release of all of the Deposit and any other amounts in the Escrow Account (i) to make a contribution to Heckmann and/or Merger Sub to enable it or them concurrently to consummate the Merger in all material respects in accordance with
the terms of the Merger Agreement, including as such may be amended or conditions to closing waived, provided that no amendment or waiver shall be materially adverse to the Holders without the consent of the Holders of a majority in principal
amount of the Stage I Notes outstanding having been obtained by the Company and (ii) to use any remaining funds following the consummation of the Merger for any other purpose permitted under the Stage I Indenture, 

(ii) on the date that any scheduled payment of interest may be due on the Stage I Notes, the Company may obtain a release of the Deposit
in the maximum amount necessary to concurrently make such interest payment in full, and 
 (iii) if the
Merger shall not have occurred on or prior to December 31, 2012 (or the Merger shall have been terminated or abandoned prior to such date), the Company shall, no later than the third (3rd) Business Day following December 31, 2012 (or such earlier date on which the Merger shall have been
terminated or abandoned), obtain a release of all of the 

  
 5 

 
Deposit and any other amounts in the Escrow Account, which such amounts shall be applied by the Company first, to the redemption of all of the Stage I Notes then outstanding at a
redemption price (calculated by the Company) equal to 100.250% of the aggregate principal amount thereof, together with accrued but unpaid interest (including, for the avoidance of doubt, pre-issuance interest) thereon from October 15, 2012, to
the date of such redemption (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date), and second, any amounts remaining after such redemption of the Stage I Notes
may be used by the Company for any legally permitted purpose, 
 in each case, upon delivery to the Escrow Agent and the Stage I Trustee:

 (1) by the Company of an Officers’ Certificate (as defined below) certifying that all such conditions in
respect of the applicable disbursement have been satisfied and specifying the amount and the wire transfer or other delivery instructions and the date and time of such disbursement in accordance with Section 5(b); and, 

(2) solely in the case of a disbursement pursuant to Section 5(a)(i) hereof, by Heckmann of an Officers’
Certificate to the effect that: 
  

	 	(x)	the funds held in the Escrow Account will be used upon release to concurrently consummate the Merger in all material respects in accordance with the terms of the Merger
Agreement as it may be amended or waived, provided that, if the Merger Agreement has been amended or conditions therein waived, such Officers’ Certificate shall further certify that either (1) no such amendment or waiver is
materially adverse to the Holders or (2) if any such amendment or waiver is materially adverse to the Holders, that the consent of the Holders of a majority in principal amount of the Stage I Notes outstanding to such amendment or waiver has
been obtained; and 

  

	 	(y)	(1) immediately following consummation of the Merger, it will have committed undrawn revolving credit borrowing capacity that, together with unrestricted cash or Cash
Equivalents on hand, is not less than $100.0 million and (2) no Default or Event of Default (as defined under the Indenture, dated as of April 10, 2012, as amended by the First Supplemental Indenture thereto, dated as of April 10,
2012, and the Second Supplemental Indenture thereto, dated as of September 19, 2012 (as so amended, the “Existing Heckmann Indenture”), among Heckmann, the guarantors party thereto and The Bank of New York Trust Company,
N.A., as trustee), would occur as a result of the consummation of the Merger or Merger-related financing, 

“Officers’ Certificate” means with respect to any person, a certificate signed on behalf of such person by
two of its Officers, one of whom must be the principal executive officer, the principal financial officer, the treasurer or the principal accounting officer. “Officer” means, with respect to any person, the chairman of
the board of directors or equivalent body, 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. 

  
 6 

 (b) Any funds to be paid to or by the Escrow Agent hereunder shall be sent by wire transfer
in immediately available funds pursuant to the instructions set forth in the applicable Officers’ Certificate or other notice provided in accordance with Section 13 hereof, on the Business Day specified in such Officers’
Certificate or notice; provided that, if the date specified is the date such Officers’ Certificate or notice is provided, such payment shall be made on such date if such Officers’ Certificate or notice is provided prior to 12:00
p.m., local time in New York, New York; otherwise the date of such payment shall be the next succeeding Business Day. Any such instruction may be revoked in writing, or orally by telephone or otherwise (such oral instruction to be promptly confirmed
in writing) by the instructing party at any time prior to the receipt of applicable funds. 
 6. Tax Matters. The
Company shall provide the Escrow Agent with its taxpayer identification number documented by an appropriate Form W-9 upon execution of this Escrow Agreement. Failure to provide such form may prevent or delay disbursements from the Deposit and may
also result in the assessment of a penalty and the Escrow Agent’s being required to withhold tax on any interest or other income earned on the Deposit. Any payments of income shall be subject to applicable withholding regulations then in force
in the United States or any other jurisdiction, as applicable. 
 7. Scope of Undertaking. The Escrow Agent’s
duties and responsibilities in connection with this Escrow Agreement shall be purely ministerial and shall be limited to those expressly set forth in this Escrow Agreement. The Escrow Agent is not a principal, participant or beneficiary in any
transaction underlying this Escrow Agreement and shall have no duty to inquire beyond the terms and provisions hereof. The Escrow Agent shall have no responsibility or obligation of any kind in connection with this Escrow Agreement or the Deposit
and shall not be required to deliver the Deposit or any part thereof or take any action with respect to any matters that might arise in connection therewith, other than to receive, hold, invest, reinvest and deliver the Deposit as herein provided.
Without limiting the generality of the foregoing, it is hereby expressly agreed and stipulated by the parties hereto that the Escrow Agent shall not be required to exercise any discretion hereunder and shall have no investment or management
responsibility and, accordingly, shall have no duty to, or liability for its failure to, provide investment recommendations or investment advice to the Other Parties or either of them. The Escrow Agent shall not be liable for any error in judgment,
any act or omission, any mistake of law or fact, or for anything it may do or refrain from doing in connection herewith, except for, subject to Section 8 below, its own willful misconduct or gross negligence. It is the intention of the
parties hereto that the Escrow Agent shall not be required to use, advance or risk its own funds or otherwise incur financial liability in the performance of any of its duties or the exercise of any of its rights and powers hereunder. 

8. Reliance; Liability. The Escrow Agent may rely on, and shall not be liable for acting or refraining from acting in
accordance with, any written notice, instruction or request or other paper furnished to it hereunder or pursuant hereto and believed by it in good faith to be genuine and to have been signed or presented by the proper party or parties. In no event
shall the Escrow Agent be liable for any lost profits, lost savings or other special, exemplary, 

  
 7 

 
consequential or incidental damages even if the Escrow Agent has been advised of the likelihood of such loss or damage; and the Escrow Agent shall have no liability for any loss arising from any
cause beyond its control, including, but not limited to, the following: (a) acts of God, force majeure, including, without limitation, war (whether declared or existing), terrorism, revolution, insurrection, riot, civil commotion, accident,
fire, explosion, stoppage of labor, strikes and other differences with employees; (b) the act, failure or neglect of any Other Party or any agent, attorney or correspondent or any other person selected by the Escrow Agent; (c) any delay,
error, omission or default of any mail, courier, telegraph, cable or wireless agency or operator; or (d) the acts or edicts of any government or governmental agency or other group or entity exercising governmental powers. The Escrow Agent is
not responsible or liable in any manner whatsoever for the sufficiency, correctness, genuineness or validity of the subject matter of this Escrow Agreement or any part hereof or for the transaction or transactions requiring or underlying the
execution of this Escrow Agreement, the form or execution hereof or for the identity or authority of any person executing this Escrow Agreement or any part hereof or depositing the Deposit. In the event that the Escrow Agent shall be uncertain as to
its duties or rights hereunder or shall receive instructions, claims or demands from any party hereto which, in its opinion, conflict with any of the provisions of this Escrow Agreement, it shall be entitled to refrain from taking any action and its
sole obligations shall be to keep safely all property held under the terms of this Escrow Agreement until it shall be directed otherwise in writing by all of the Other Parties or by a final order or judgment of a court of competent jurisdiction.

 9. Right of Interpleader. Should any controversy arise involving the parties hereto or any of them or any other
person, firm or entity with respect to this Escrow Agreement or the Deposit, or should a substitute escrow agent fail to be designated as provided in Section 16 hereof, or if the Escrow Agent should be in doubt as to what action to take,
the Escrow Agent shall have the right, but not the obligation, to institute a petition for interpleader in any court of competent jurisdiction to determine the rights of the parties hereto. Should a petition for interpleader be instituted, or should
the Escrow Agent be threatened with litigation or become involved in litigation in any manner whatsoever in connection with this Escrow Agreement or the Deposit, the Company hereby agrees to reimburse the Escrow Agent for its reasonable
attorneys’ fees and any and all other expenses, losses, costs and damages incurred by the Escrow Agent in connection with or resulting from such threatened or actual litigation prior to any disbursement hereunder, except as such fees, expenses,
losses, costs and damages result from the willful misconduct or gross negligence of the Escrow Agent, and the Escrow Agent shall be entitled to recover its costs and expenses as incurred, and to the extent not paid by the Company, from the Deposit.

 10. Indemnification. The Company hereby agrees to indemnify the Escrow Agent, the Stage I Trustee and their
respective officers, directors, partners, employees and agents (each an “Indemnified Party”) against, and hold each Indemnified Party harmless from, any and all reasonable expenses, including, without limitation, reasonable
attorneys’ fees and court costs, losses, costs, damages and claims, including, but not limited to, costs of investigation, litigation, tax liability and loss on investments suffered or incurred by any Indemnified Party in connection with or
arising from or out of this Escrow Agreement, except such acts or omissions as may result from the willful misconduct or gross negligence of such Indemnified Party. 

  
 8 

 11. Compensation and Reimbursement of Expenses. The Company hereby agrees to
pay the Escrow Agent such fee for its services hereunder as agreed in writing between the Company and the Escrow Agent. In addition, the Company shall reimburse the Escrow Agent for any reasonable out-of-pocket expenses incurred by the Escrow Agent,
not due to the unlawful misconduct or gross negligence of the Escrow Agent. 
 12. Funds Transfer Security
Procedures. In the event funds transfer instructions are given (other than in writing at the time of execution of this Escrow Agreement) pursuant to Section 5 hereof, whether in writing, or otherwise, the Escrow Agent is
authorized to seek confirmation of such instructions by telephone call-back to the persons designated on Schedule A hereto, and the Escrow Agent may rely upon the confirmations of anyone purporting to be the person so designated. The
persons and telephone numbers for call-backs may be changed only in writing actually received and acknowledged by the Escrow Agent. If the Escrow Agent is unable to contact any of the authorized representatives identified in Schedule A
hereto, the Escrow Agent is hereby authorized to seek confirmation of such instructions by telephone call-back to any one or more authorized officers or representatives of the Company and/or the Stage I Trustee (in each case, the
“Authorized Representative”), as the case may be, as the Escrow Agent may select. Such Authorized Representative shall deliver to the Escrow Agent a fully executed incumbency certificate, and the Escrow Agent may rely upon
the confirmation of anyone purporting to be any such officer or representative. The parties to this Escrow Agreement acknowledge that such security procedure is commercially reasonable. 

It is understood that the Escrow Agent and the beneficiary’s bank in any funds transfer may rely solely upon any account numbers or
similar identifying number provided by either of the Other Parties to identify (i) the beneficiary, (ii) the beneficiary’s bank, or (iii) an intermediary bank. The Escrow Agent may apply any of the funds in the Escrow Account for
any payment order it executes using any such identifying number, even where its use may result in a person other than the beneficiary being paid, or the transfer of funds to a bank other than the beneficiary’s bank or an intermediary bank,
designated. 
 13. Notices. Any notice or other communication required or permitted to be given under this Escrow
Agreement by any party hereto to any other party hereto shall be considered as properly given if in writing and (a) delivered by hand against receipt therefor, (b) mailed by registered or certified mail, return receipt requested and
postage prepaid, (c) sent by facsimile or (d) sent by e-mail, in each case to the address or facsimile number, as the case may be, set forth below: 
 If to the Escrow Agent: 
 The Bank of New York Mellon Trust Company, N.A.

 525 William Penn Place, 38th Floor 
 Pittsburgh, Pennsylvania 15259 
 Attn: Natalie Lawrence 

Telephone: (412) 234-7562 
 Fax: (412) 234-7535 
 e-mail: natalie.a.lawrence@bnymellon.com 

  
 9 

 If to the Stage I Trustee: 
 The Bank of New York Mellon Trust Company, N.A. 
 525 William Penn Place, 38th
Floor 
 Pittsburgh, Pennsylvania 15259 
 Attn: Natalie Lawrence 
 Telephone: (412) 234-7562 

Fax: (412) 234-7535 
 e-mail: natalie.a.lawrence@bnymellon.com 
 If to the Company: 

Rough Rider Escrow, Inc. 
 300 Cherrington Parkway, Suite 200 
 Coraopolis, Pennsylvania 15108 

Attn: Damian C. Georgino, Vice President 
 Telephone: (412) 474-3802 
 Fax: (412) 291-1983 

e-mail: damian.georgino@heckmanncorp.com 
 With a copy to: 
 Reed Smith LLP 

Reed Smith Centre 

225 Fifth Avenue 

Pittsburgh, Pennsylvania 15222 
 Attn: Nicholas A. Bonarrigo 
 Telephone: (412) 288-5930 

Fax: (412) 288-3063 
 e-mail: nbonarrigo@reedsmith.com 
 Except to the extent otherwise provided in the second paragraph
of Section 4 above, delivery of any communication given in accordance herewith shall be effective only upon actual receipt thereof by the party or parties to whom such communication is directed. Any party to this Escrow Agreement may
change the address to which communications hereunder are to be directed by giving written notice to the other party or parties hereto in the manner provided in this section. In addition to the foregoing, the Escrow Agent may elect to act on
electronic instructions; however, the party providing such instructions assume any risk in connection therewith. 
 14.
Consultation with Legal Counsel. The Escrow Agent may consult with its counsel or other counsel satisfactory to it concerning any question relating to its duties or responsibilities hereunder or otherwise in connection herewith and
shall not be liable for any action taken, suffered or omitted by it in good faith upon the advice of such counsel. 
 15.
Choice of Law; Cumulative Rights; Waiver of Jury Trial. This Escrow Agreement shall be construed under, and governed by, the laws of the State of New York 

  
 10 

 
without regard to the conflict of laws principles thereof which might indicate the applicability of the laws of another jurisdiction. All of the Escrow Agent’s rights hereunder are
cumulative of any other rights it may have at law, in equity or otherwise. For purposes of this Escrow Agreement, the Escrow Agent agrees that its “securities intermediary’s jurisdiction” (within the meaning of Section 8-110(e)
of the UCC) is the State of New York. The parties hereto waive to the extent permitted by law any right they may have to a jury trial. 
 16. Resignation and Removal. The Escrow Agent shall have the right at any time to resign hereunder by giving written notice of its resignation to the Company at the addresses set forth
herein, or at such other addresses as the Company shall provide, at least thirty (30) calendar days prior to the date specified for such resignation to take effect. The Company may remove the Escrow Agent at any time by giving written notice
thereof to the Escrow Agent and the Stage I Trustee at the addresses set forth herein, or at such other addresses as the Escrow Agent and the Stage I Trustee shall provide, at least five (5) calendar days prior to the date specified for such
resignation to take effect. The Company shall promptly appoint a successor escrow agent. Such resignation shall not be effective until the acceptance of appointment by a successor escrow agent. Upon the effective date of such resignation or removal,
all cash and other payments and all other property then held by the Escrow Agent hereunder in the Escrow Account shall be delivered by it to such successor escrow agent. If no successor escrow agent is appointed and has accepted its appointment
within thirty (30) calendar days after the Escrow Agent has given notice of its resignation as aforesaid, the Escrow Agent may apply to a court of competent jurisdiction for such appointment. The Escrow Agent or any successor thereto is not
required to be the same entity as the trustee under the Stage I Indenture. 
 17. Assignment. This Escrow
Agreement may not be assigned by either of the Other Parties without the prior written consent of the Escrow Agent (such assigns of the Other Parties to which the Escrow Agent consents, if any, and the Escrow Agent’s assigns being hereinafter
referred to collectively as “Permitted Assigns”). The Escrow Agent may not assign this Escrow Agreement except pursuant to a resignation in accordance with Section 16. 

18. Severability. If one or more of the provisions hereof shall for any reason be held to be invalid, illegal or
unenforceable in any respect under applicable law, such invalidity, illegality or unenforceability shall not affect any other provisions hereof, and this Escrow Agreement shall be construed as if such invalid, illegal or unenforceable provision had
never been contained herein, and the remaining provisions hereof shall be given full force and effect. 
 19.
Termination. This Escrow Agreement and the security interest granted herein shall terminate upon (i) the disbursement of the Deposit in full, in accordance with Section 5(a) hereof; (ii) upon legal defeasance or
covenant defeasance or satisfaction and discharge of the Stage I Indenture; and (iii) with the consent of the Holders of the requisite percentage of Stage I Notes in accordance with the Stage I Indenture, provided, however, that
in the event all fees, expenses, costs and other amounts required to be paid to the Escrow Agent hereunder are not fully and finally paid prior to termination, the provisions of Section 11 hereof shall survive the termination hereof;
provided, further, that the last two sentences of Section 9 hereof and the provisions of Section 10 hereof shall, in any event, survive the termination hereof. Upon the termination of this Escrow Agreement and
the security interest granted herein, the Escrow Agent shall execute, upon request and at the Company’s expense, any documents, instruments, agreements or filings reasonably requested by the Company to evidence the release of such security
interest. 

  
 11 

 20. General. Capitalized terms used but not defined herein shall have the
meanings given to them in the Stage I Indenture. The section headings contained in this Escrow Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Escrow Agreement. This Escrow Agreement
and any affidavit, certificate, instrument, agreement or other document required to be provided hereunder may be executed in two or more counterparts, each of which shall be deemed an original, but all of which taken together shall constitute but
one and the same instrument. Unless the context shall otherwise require, the singular shall include the plural and vice-versa, and each pronoun in any gender shall include all other genders. The terms and provisions of this Escrow Agreement
constitute the entire agreement among the parties hereto in respect of the subject matter hereof, and neither the Other Parties nor the Escrow Agent has relied on any representations or agreements of the other, except as specifically set forth in
this Escrow Agreement. This Escrow Agreement or any provision hereof may be amended, modified, waived or terminated only by written instrument duly signed by the parties hereto. This Escrow Agreement shall inure to the benefit of, and be binding
upon, the parties hereto and their respective Permitted Assigns. This Escrow Agreement is for the sole and exclusive benefit of the Other Parties and the Escrow Agent, and nothing in this Escrow Agreement, express or implied, is intended to confer
or shall be construed as conferring upon any other person any rights, remedies or any other type or types of benefits. 

[Signature page follows.] 

  
 12 

 IN WITNESS WHEREOF, the parties hereto have executed this Escrow Agreement to be
effective as of the date first above written. 
  

			
	 ROUGH RIDER ESCROW, INC.

		
	By:	 	 /s/ Damian C. Georgino

		 	Name: Damian C. Georgino
		 	Title: Vice President
	
	 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Stage I Trustee

		
	By:	 	 /s/ Lawrence M. Kusch

		 	Name: Lawrence M. Kusch
		 	Title: Vice President
	
	 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Escrow Agent

		
	By:	 	 /s/ Lawrence M. Kusch

		 	Name: Lawrence M. Kusch
		 	Title: Vice President

 [Signature page to Security and Escrow Agreement]

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