Document:

Stock Escrow Agreement between American Stock Tranfer & Trust Company

 Exhibit 10.10 
 SECURITIES ESCROW AGREEMENT 
 THIS SECURITIES ESCROW AGREEMENT, dated as of
                    , 2007 (this “Agreement”), by and among Heckmann Corporation, a Delaware corporation (the
“Company”), each of the parties set forth on Exhibit A annexed hereto (collectively the “Private Investors”) and American Stock Transfer & Trust Company (the “Escrow Agent”). 
 WHEREAS, the Company has entered into an Underwriting Agreement, dated
                    , 2007 (the “Underwriting Agreement”), with Credit Suisse Securities (USA) LLC (“Credit
Suisse”) and Roth Capital Partners, LLC acting as underwriters (collectively, the “Underwriters”), pursuant to which, among other matters, the Underwriters have agreed to purchase 62,500,000 units of the Company plus an
additional 9,375,000 units if the Underwriters exercise their over-allotment option. The Company’s units (the “Units”) each consist of one share of the Company’s common stock, par value $0.001 per share (the
“Common Stock”), and one warrant (the “Warrant”) exercisable to purchase one share of Common Stock, all as more fully described in the Company’s final Prospectus, dated
                    , 2007, comprising part of the Company’s Registration Statement on Form S-1 (File
No. 333-            ) (the “Registration Statement”) filed under the Securities Act of 1933, as amended, and declared effective by the Securities and Exchange
Commission on                     , 2007 (the “Effective Date”); 
 WHEREAS, each of the Private Investors has agreed as a condition of the Underwriters’ purchase of the Units to deposit its Units purchased on
June 21, 2007, as set forth opposite each Private Investor’s name on Exhibit A attached hereto (the “Founders’ Units”), in escrow as hereinafter provided; 
 WHEREAS, Heckmann Acquisition, LLC, a Delaware limited liability company (“Acquisition”) has agreed as a condition of the
Underwriters’ purchase of the Units to purchase 4,500,000 Warrants for $1.00 per Warrant (the “Private Placement Warrants”) immediately prior to and subject to the closing (the “Closing”) of the Company’s
initial public offering (the “Offering”) and to deposit such Private Placement Warrants in escrow as hereinafter provided; 
 WHEREAS, the Private Investors have agreed as a condition of the Underwriters’ purchase of the Units to purchase an aggregate of 687,500 units for $8.00 per unit (the “Private Placement Units” and collectively with the
Founders’ Units, the Private Placement Warrants and the shares of Common Stock underlying such Units and Warrants, the “Escrow Securities”) immediately prior to and subject to the Closing and to deposit such Private Placement
Units in escrow as hereinafter provided; and 
 WHEREAS, the Company and the Private Investors desire that the Escrow Agent accept the Escrow
Securities, in escrow, to be held and disbursed as hereinafter provided. 
 IT IS AGREED: 
 1. Appointment of Escrow Agent. The Company and the Private Investors hereby appoint the Escrow Agent to act in accordance with and subject to the terms of this
Agreement and the Escrow Agent hereby accepts such appointment and agrees to act in accordance with and subject to such terms. 
 2. Deposit of Escrow Securities. 
 2.1. Founders’ Units. On or before the Effective Date, each of the Private
Investors shall deliver to the Escrow Agent certificates representing such Private Investor’s respective Founders’ Units as set forth opposite their respective names on Exhibit A hereto, which certificates shall remain in the name of such
Private Investor, to be held and disbursed subject to the terms and conditions of this Agreement. Each Private Investor acknowledges that the certificate representing such Private Investor’s Founders’ Units bears a legend to reflect the
deposit of such Founders’ Units under this Agreement. 
  

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 2.2 Private Placement Securities. Promptly following the consummation of the Offering, each of the
Private Investors shall deliver to the Escrow Agent certificates representing such Private Investor’s respective Private Placement Units and Private Placement Warrants as set forth opposite their respective names on Exhibit A attached hereto,
which certificates shall remain in the name of such Private Investor, to be held and disbursed subject to the terms and conditions of this Agreement. Each Private Investor acknowledges that the certificates representing such Private Investor’s
Private Placement Units and Private Placement Warrants shall bear a legend to reflect the deposit of such securities under this Agreement. 
 3. Disbursement of the Escrow Securities. The Escrow Agent shall hold the Founders’ Units and Private
Placement Units (together, the “Escrow Units”) until the first anniversary of the consummation of a Business Combination (as such term is defined in the Amended and Restated Articles of Incorporation of the Company) and shall hold
the Private Placement Warrants until the 90th day after the consummation of a Business Combination (each such
period, an “Escrow Period”); provided, however, that if the over-allotment granted to the Underwriters pursuant to the Underwriting Agreement is not exercised in full prior to the expiration of the over-allotment option, then
the Escrow Agent shall release to the Company such number of Founders’ Units as directed in writing by the Company. The Company shall promptly provide notice of the consummation of a Business Combination to the Escrow Agent. Upon the completion
of each Escrow Period, the Escrow Agent shall automatically disburse the applicable Escrow Securities to each Private Investor upon receipt of written request therefor from the Company; provided, however, that in the event the Closing does
not occur prior to the two-year anniversary of the Effective Date, then the Escrow Agent shall promptly release the Escrow Securities to the Private Investors; provided further, however, that if the Escrow Agent is notified by the Company
pursuant to Section 6.7 hereof that the Company has been liquidated at any time during the Escrow Period, then the Escrow Agent shall promptly destroy the certificates representing the Founders’ Units and the Private Placement Warrants and
shall promptly release the Private Placement Units to the Private Investors; provided further, however, that if the consummation of a Business Combination takes the form of a merger, stock exchange or other similar transaction which results
in any of the security holders of the Company having the right to exchange their securities for other securities, then the Escrow Agent shall, upon receipt of a certificate in form reasonably acceptable to the Escrow Agent, executed by the Chief
Executive Officer of the Company, release the Escrow Securities to the Private Investors immediately prior and subject to consummation of the Business Combination so that they can similarly participate, and upon receipt thereof, the Private
Investors shall deposit such securities into escrow with the Escrow Agent for the remainder of the applicable Escrow Periods; and provided further, however, that if, after the Company consummates a Business Combination and the Company or the
surviving entity of such Business Combination subsequently consummates a liquidation, merger, stock exchange or other similar transaction which results in any of the security holders of the Company or such entity having the right to exchange their
securities for cash, securities or other property, then the Escrow Agent shall, upon receipt of a certificate in form reasonably acceptable to the Escrow Agent, executed by the Chief Executive Officer of the Company, that such transaction is then
being consummated, release the Escrow Securities to the Private Investors immediately prior and subject to consummation of the transaction so that they can similarly participate. The Escrow Agent shall act as soon as reasonably possible following
the receipt of the certificate, and shall not be held liable for any delay in sending the Escrow Securities caused by the late receipt of the certificate. The Escrow Agent shall have no further duties hereunder with respect to the Escrow Securities
after the disbursement or destruction of the Escrow Securities in accordance with this Section 3. 
  

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 4. Rights of Private Investors in Escrow Securities. 
 4.1. Rights as a Security Holder. Subject to the terms of their respective Insider Letters as described in Section 4.4 hereof and except as
herein provided, each Private Investor shall retain all of its rights as a stockholder of the Company during the Escrow Period, including without limitation, the right to vote Common Stock. The Escrow Agent shall have no responsibility to determine
or verify the contents or limitations of the Insider Letters and shall be bound only by the terms of this Agreement. 
 4.2. Dividends and
other Distributions in Respect of the Escrow Securities. During the Escrow Period with respect to the Escrow Securities, all dividends payable in cash with respect to the Escrow Securities shall be paid to the Private Investors, but all
dividends payable in stock or other non-cash property (the “Non-Cash Dividends”) shall be delivered to the Escrow Agent to hold in accordance with the terms hereof. As used herein, the terms “Escrow Securities”
shall be deemed to include the Non-Cash Dividends distributed thereon, if any. 
 4.3. Restrictions on Transfer. During the Escrow
Period, no sale, transfer or other disposition (a “Transfer”) may be made of any or all of the Escrow Securities by a Private Investor except (i) by gift to a member of the Private Investor’s immediate family for estate
planning purposes or to a trust, the beneficiary of which is the Private Investor or a member of the Private Investor’s immediate family, (ii) if the Private Investor is not a natural person, by gift to a member of the immediate family of
such Private Investor’s controlling person for estate planning purposes or to a trust, the beneficiary of which is such Private Investor’s controlling person or a member of the immediate family of such Private Investor’s controlling
person, (iii) by virtue of the laws of descent and distribution upon death of the Private Investor, or (iv) pursuant to a qualified domestic relations order; provided, however, that such permitted Transfers may be implemented only
upon the respective transferee’s written agreement to be bound by the terms and conditions of this Agreement and of the Insider Letter signed by such Private Investor transferring such Escrow Securities and such other documents as the Company
or Credit Suisse may reasonably require. During the Escrow Period, no Private Investor shall pledge or grant a security interest in such Private Investor’s Escrow Securities or grant a security interest in such Private Investor’s rights
under this Agreement. 
 4.4. Insider Letters. Each of the Private Investors has executed a letter agreement with the Company, which
has been filed as an exhibit to the Registration Statement (the “Insider Letter”), with respect to the rights and obligations of such Private Investors in certain events, including but not limited to the liquidation of the Company.

 5. Concerning the Escrow Agent. 
 5.1. Good Faith Reliance. The Escrow Agent shall be protected and shall not be liable for any action taken or omitted by it in good faith and in the exercise of its best judgment (unless grossly negligent), and
may rely conclusively and may act upon any order, notice, demand, certificate, opinion or advice of counsel (including counsel chosen by the Escrow Agent), statement, instrument, report or other document which is believed by the Escrow Agent to be
genuine and to be signed or presented by the proper person or persons. The Escrow Agent shall not be bound by any notice or demand, or any waiver, modification, termination or rescission of this Agreement unless evidenced by a writing delivered to
the Escrow Agent signed by the proper party or parties and, if the duties or rights of the Escrow Agent are affected, unless it shall have given its prior written consent thereto. 
 5.2. Indemnification. The Escrow Agent shall be indemnified and held harmless by the Company from and against any expenses, including reasonable
counsel fees and disbursements, or losses suffered by the Escrow Agent in connection with any action, suit or other proceeding involving any claim which in any way, directly or indirectly, arises out of or relates to this Agreement, the services of
the Escrow Agent hereunder, or the Escrow Securities held by it hereunder, other than expenses or losses 

  

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arising from the gross negligence or willful misconduct of the Escrow Agent. Promptly after the receipt by the Escrow Agent of notice of any demand or claim
or the commencement of any action, suit or proceeding, the Escrow Agent shall notify the other parties hereto in writing. In the event of the receipt of such notice, the Escrow Agent, in its sole discretion, may commence an action in the nature of
interpleader in an appropriate court to determine ownership or disposition of the Escrow Securities or it may deposit the Escrow Securities with the clerk of any appropriate court or it may retain the Escrow Securities pending receipt of a final,
non-appealable order of a court having jurisdiction over all of the parties hereto directing to whom and under what circumstances the Escrow Securities are to be disbursed and delivered. The provisions of Sections 5.2 and 5.7 shall survive in the
event the Escrow Agent resigns or is discharged pursuant to Sections 5.5 or 5.6 below and in the event of termination under 6.11 below. 
 5.3. Compensation. The Escrow Agent shall be entitled to compensation from the Company in accordance with Schedule I hereto for all services rendered by it hereunder. 
 5.4. Further Assurances. From time to time on and after the date hereof, the Company and the Private Investors shall deliver or cause to be
delivered to the Escrow Agent such further documents and instruments and shall do or cause to be done such further acts as the Escrow Agent shall reasonably request to carry out more effectively the provisions and purposes of this Agreement, to
evidence compliance herewith or to assure itself that it is protected in acting hereunder. 
 5.5. Resignation. The Escrow Agent may
resign at any time and be discharged from its duties as escrow agent hereunder by its giving the other parties hereto written notice, and such resignation shall become effective at such time that the Escrow Agent shall turn over to a successor
escrow agent appointed by the Company the Escrow Securities held hereunder. If no successor escrow agent is so appointed within the sixty (60) day period following the giving of such notice of resignation, the Escrow Agent may submit an
application to deposit the Escrow Securities with the United States District Court for the Southern District of New York, provided the Escrow Agent provides notice of such deposit to the Company and the Private Investors in accordance with
Section 6.7 hereof. 
 5.6. Discharge of Escrow Agent. The Escrow Agent shall resign and be discharged from its duties as escrow
agent hereunder if so requested in writing at any time by the other parties hereto, jointly; provided, however, that such resignation shall become effective only upon acceptance of appointment by a successor escrow agent as provided in
Section 5.5. 
 5.7. Liability. Notwithstanding anything herein to the contrary, the Escrow Agent shall not be relieved from
liability hereunder for its own gross negligence or willful misconduct. 
 5.8. Waiver. The Escrow Agent hereby waives any and all
right, title, interest or claim of any kind (each, a “Claim”) in or to any distribution of the Trust Account (as defined in that certain Investment Management Trust Agreement, dated as of the date hereof, by and between the Company
and the Escrow Agent as trustee thereunder), and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever. 
 5.9. Standard of Care. The Escrow Agent shall be obligated only to perform the duties specifically set forth in this Escrow Agreement, which shall
be deemed purely ministerial in nature, and the Escrow Agent shall under no circumstances be deemed to be a fiduciary to any party hereto or any other person. The parties hereto agree that the Escrow Agent shall not assume any responsibility for the
failure of the parties hereto to perform in accordance with this Escrow Agreement or any other agreement or document. This Escrow Agreement sets forth all matters pertinent to the escrow contemplated hereunder, and no additional obligations of the
Escrow Agent shall be inferred from the terms of this Escrow Agreement or any other agreement or document. IN NO EVENT SHALL THE ESCROW 

  

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AGENT BE LIABLE, DIRECTLY OR INDIRECTLY, FOR ANY DAMAGES OR EXPENSES ARISING OUT OF THE SERVICES PROVIDED HEREUNDER, OTHER THAN DAMAGES WHICH RESULT FROM THE
ESCROW AGENT’S GROSS NEGLIGENCE OR WILLFUL MISCONDUCT. 
 6. Miscellaneous. 
 6.1. Governing Law and Consent to Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the laws of the State of New
York applicable to contracts executed in and to be performed in that State, including, without limitation, Sections 5-1401 and 5-1402 of the New York General Obligations Law and the New York Civil Practice Laws and Rules 327(b). The parties hereto
agree that any action, proceeding or claim against it arising out of or relating in any way to this Agreement shall be brought and enforced in the courts of the State of New York or the United States District Court for the Southern District of New
York, and the parties hereto irrevocably submit to such jurisdiction, which jurisdiction shall be exclusive. The parties hereto hereby waive any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum.

 6.2. Waiver of Trial by Jury. Each party hereto hereby irrevocably and unconditionally waives the right to a trial by jury in any
action, suit, counterclaim or other proceeding (whether based on contract, tort or otherwise) arising out of, connected with or relating to this Agreement, the transactions contemplated hereby, or the actions of the parties in the negotiation,
administration, performance or enforcement hereof. 
 6.3 Third Party Beneficiaries. Each of the Private Investors hereby acknowledges
that the Underwriters are third party beneficiaries of this Agreement and this Agreement may not be modified or changed without the prior written consent of Credit Suisse. 
 6.4. Entire Agreement. This Agreement and the Insider Letters and Warrants as referenced herein contain the entire agreement of the Company and
the Private Investors with respect to the subject matter hereof, and this Agreement contains the entire agreement as it pertains to the Escrow Agent and the other parties hereto and, except as expressly provided herein, may not be changed or
modified except by an instrument in writing signed by all parties to this Agreement and Credit Suisse. This Agreement may be executed in several original or facsimile counterparts, each one of which shall constitute an original, and together shall
constitute but one instrument. 
 6.5. Headings. The headings contained in this Agreement are for reference purposes only and shall
not affect in any way the meaning or interpretation hereof. 
 6.6. Binding Effect. This Agreement shall be binding upon and inure to
the benefit of the respective parties hereto and their legal representatives, successors and permitted assigns. Any corporation or association into which the Escrow Agent may be converted or merged, or with which it may be consolidated, or to which
it may sell or transfer all or substantially all of its corporate trust business and assets as a whole or substantially as a whole, or any corporation or association resulting from any such conversion, sale, merger, consolidation or transfer to
which the Escrow Agent is a party, shall be and become the successor escrow agent under this Escrow Agreement and shall have and succeed to the rights, powers, duties, obligations, immunities and privileges of the Escrow Agent, without the execution
or filing of any instrument or paper or the performance of any further act. 
 6.7. Notices. Any notice or other communication
required or which may be given hereunder shall be in writing and shall be sent by certified or registered mail, by private national courier service (return receipt requested, postage prepaid), by personal delivery or by facsimile transmission. Such
notice or communication shall be deemed given (a) if mailed, two days after the date of mailing, (b) if 

  

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sent by national courier service, one business day after being sent, (c) if delivered personally, when so delivered, or (d) if sent by facsimile
transmission, on the second business day after such facsimile is transmitted, in each case as follows: 
 If to the Company, to: 
 Heckmann Corporation 
 75080 Frank Sinatra Dr.

 Palm Desert, California 92211 
 Attn: Richard J. Heckmann 
 Fax: (760) 341-3727 
 If to a Private Investor, to his address set forth in Exhibit A. 
 If to the Escrow Agent, to: 
 American Stock Transfer & Trust Company 
 59 Maiden Lane 
 New York, NY 10038 
 Attn: George Karfunkel

 Fax: (718) 331-1852 
 A copy of any notice sent hereunder shall be sent to each of: 
 Skadden, Arps, Slate, Meagher & Flom
LLP 
 300 South Grand Avenue 
 Suite 3400 
 Los Angeles, California 90071 
 Attn: Gregg A. Noel, Esq. 
 Fax: (213) 687-5000 
 Credit Suisse Securities (USA) LLC 
 Eleven
Madison Avenue 
 New York, New York 10010 
 Attn: [                    ] 
 Fax: (    )         -             
 Simpson Thacher & Bartlett LLP 
 2550 Hanover Street 
 Palo Alto, California 94304 
 Attn: William H. Hinman, Esq. 
 Fax: (650) 251-5002 
 The parties may change the persons and addresses to which the notices or other communications are to be sent by giving written notice to any such change
in the manner provided herein for giving notice. 
 6.8. Liquidation of the Company. The Company shall give the Escrow Agent written
notification of the liquidation and dissolution of the Company in the event that the Company fails to consummate a Business Combination within the time period specified in the Registration Statement. 
 6.9 Disputes. If any disagreement or dispute arises among the Company and the Private 

  

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Investors concerning the meaning or validity of any provision hereunder or concerning any other matter relating to this Escrow Agreement, the Escrow Agent
shall be under no obligation to act, except (i) with joint written instruction of the Company and the Private Investors, or (ii) under process or order of court, and shall sustain no liability for its failure to act pending such process or
court order. 
 6.10 Authorized Signatures. Concurrent with the execution of this Agreement, the Company will provide a completed
certificate of parties authorized to sign on its behalf, in the form attached hereto as Schedule II. 
 6.11 Termination. This
Agreement shall terminate on the final distribution or destruction of all of the Escrow Securities in accordance with the terms of this Agreement. 
 IN WITNESS WHEREOF, the parties have duly executed this Security Escrow Agreement as of the date first written above. 
  

			
	 HECKMANN CORPORATION

		
	By:	 	  

	Name:	 	Richard J. Heckmann
	Title:	 	Chief Executive Officer
	
	 AMERICAN STOCK TRANSFER & TRUST COMPANY,
 AS ESCROW AGENT

		
	By:	 	  

	Name:	 	
	Title:	 	

  

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	PRIVATE INVESTORS:
	
	HECKMANN ACQUISITION, LLC
		
	By:	 	  

	Name:	 	Richard J. Heckmann
	Title:	 	Managing Member
	
	  

	Name: Lou L. Holtz
	
	  

	Name: Alfred E. Osborne, Jr.
	
	  

	Name: Dan Quayle

 [Escrow Agreement] 

 Exhibit A 
  

							
	 Name and Address of Private Investor:
	  	 Number of
 Founders’ Units
	  	 Number of
 Private
 Placement
 Units
	  	 Number of
 Private
 Placement
 Warrants

	 Heckmann Acquisition, LLC
 75080 Frank Sinatra Dr.
 Palm Desert, California 92211
	  	17,568,750	  	556,250	  	4,500,000
				
	 Lou L. Holtz
	  	250,000	  	43,750	  	0
				
	 Alfred E. Osborne, Jr.
	  	125,000	  	43,750	  	0
				
	 Dan Quayle
	  	125,000	  	43,750	  	0

  

 9Unit Subscription Agreement

 EXHIBIT 10.11 
 HECKMANN CORPORATION 
 UNIT SUBSCRIPTION AGREEMENT 
 THIS UNIT SUBSCRIPTION AGREEMENT (this “Agreement”) is made as of the 21st day of June, 2007, by and between Heckmann Corporation, a Delaware
corporation (the “Company”), and Lou L. Holtz (“Purchaser”). 
 WHEREAS, the Company desires to commit to issue and sell,
and Purchaser desires to commit to purchase and acquire, Units (as defined herein) on the terms and conditions hereinafter set forth; 
 NOW,
THEREFORE, for and in consideration of the promises and mutual covenants set forth herein, it is agreed between the parties as follows: 
 1.
Commitment To Purchase Units. Subject to and immediately prior to the consummation of the Company’s initial public offering (the “IPO”), Purchaser hereby agrees to subscribe for and purchase from the Company, and the Company
hereby agrees to issue and sell to Purchaser, 43,750 units (the “Units”) at a purchase price of $8.00 per Unit for an aggregate purchase price of $350,000. Each Unit consists of one share of the common stock of the Company, par value
$0.001 per share (the “Common Stock”), and one warrant (a “Warrant” and, together with the Units and the Common Stock, the “Securities”) exercisable for one share of Common Stock. Each Warrant shall entitle the holder
thereof to purchase one share of Common Stock at an exercise price of $6.00, in accordance with the terms of the Warrant as set forth in the Warrant Agreement entered into by and between the Company and American Stock Transfer & Trust
Company, as warrant agent. The Warrant Agreement shall be substantially in the form attached hereto as Exhibit A (the “Warrant Agreement”). The closing of the purchase and sale of the Units hereunder, including payment for and delivery of
the Units, shall occur at the offices of the Company immediately prior to, and subject to consummation of, the IPO. 
 2. Payment of
Purchase Price. The purchase price for the Units shall be tendered in full at the closing by one or a combination of the following means: 
 (a) wiring of immediately available United States funds to an account for the benefit of the Company, pursuant to wire instructions provided by the Company in advance; or 
 (b) by delivery of a cashiers check to the Company of immediately available United States funds. 
 3. Acceptance or Rejection of Agreement. The Company has the right to reject this Agreement and any subscription for the Securities represented
hereby in whole or in part, for any reason and at any time prior to a closing, notwithstanding receipt by Purchaser or prior notice of acceptance of such subscription. The Securities subscribed for herein will not be deemed issued to or owned by
Purchaser until a copy of this Agreement has been executed by the Company and Purchaser and a closing with respect to such Securities has occurred. In the event that a closing does not take place for any reason with respect to some or all of the
Securities, all cash proceeds delivered by Purchaser in accordance herewith with respect to such Securities shall be returned to Purchaser as soon as practicable, without interest, offset or deduction. 
 4. Limitations on Transfer. Purchaser shall not assign, hypothecate, donate, encumber or otherwise dispose of any interest in the Securities (and
the underlying securities) during the “Escrow 

  

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Period” for the “Private Placement Units” (as such terms are defined in a securities escrow agreement substantially in the form attached
hereto as Exhibit B (the “Securities Escrow Agreement”), dated on or about the effective date of the IPO to be entered into by and between the Company and an escrow agent to be determined by the Company), except (i) as otherwise
permitted by the Securities Escrow Agreement, (ii) in compliance with applicable securities laws and (iii) in compliance with the Warrant Agreement. 
 5. Restrictive Legends. All certificates representing the Securities (and any underlying securities thereof) shall have endorsed thereon legends in substantially the following forms (in addition to any other
legend which may be required by other agreements between the parties hereto): 
 (a) “THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THE SECURITIES MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER SAID ACT OR AN OPINION OF
COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.” 
 (b) “THE SECURITIES REPRESENTED BY THIS CERTIFICATE
MAY NOT BE ASSIGNED, HYPOTHECATED, DONATED, ENCUMBERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF EXCEPT IN ACCORDANCE WITH THAT CERTAIN SECURITIES ESCROW AGREEMENT DATED
                    , 2007, AND THAT CERTAIN WARRANT AGREEMENT DATED AS OF
                    , 2007, COPIES OF WHICH ARE AVAILABLE FOR INSPECTION AT THE OFFICES OF THE COMPANY.” 
 (c) Any legend required by appropriate blue sky officials. 
 6. Investment Representations. In connection with the purchase of the Securities, Purchaser represents to the Company the following: 
 (a) Purchaser has been furnished with all materials relating to the Company’s business affairs and financial condition and materials related to the offer and sale of the Securities that have been requested by
Purchaser and has acquired sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Securities. Purchaser has been afforded the opportunity to ask questions of the executive officer and director of the
Company. Purchaser understands that its investment in the Securities involves a high degree of risk. Purchaser has sought such accounting, legal and tax advice as Purchaser has considered necessary to make an informed investment decision with
respect to Purchaser’s acquisition of the Securities. Purchaser has such knowledge and expertise in financial and business matters, knows of the high degree of risk associated with investments generally and particularly investments in the
securities of companies in the development stage such as the Company, is capable of evaluating the merits and risks of an investment in the Securities, and is able to bear the economic risk of an investment in the Securities in the amount
contemplated hereunder. Purchaser has adequate means of providing for its current financial needs and contingencies and will have no current or anticipated future needs for liquidity which would be jeopardized by the investment in the Securities.
Purchaser can afford a complete loss of its investment in the Securities. Purchaser is purchasing the Securities for investment for Purchaser’s own account only and not with a view to, or for resale in connection with, any
“distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Act”). Purchaser understands that the Company is a blank check development stage company recently formed for the purpose of consummating an
initial business combination (a “Business Combination”) and understands that there is no assurance as to the future performance of the Company and that the Company may never effectuate a Business Combination. 
 (b) Purchaser understands that the Securities (and the underlying securities thereof) have 

  

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not been registered under the Act or any state securities law by reason of a specific exemption therefrom, and that the Company is relying on the truth and
accuracy of, and Purchaser’s compliance with, the representations and warranties and agreements of Purchaser set forth herein to determine the availability of such exemptions and the eligibility of Purchaser to acquire such Securities,
including, but not limited to, the bona fide nature of Purchaser’s investment intent as expressed herein. 
 (c) Purchaser further
acknowledges and understands that the Securities (and the underlying securities thereof) must be held indefinitely unless the Securities (and the underlying securities thereof) are subsequently registered under the Act or an exemption from such
registration is available. Purchaser understands that the certificates evidencing the Securities (and the underlying securities thereof) will be imprinted with a legend which prohibits the transfer of the Securities (and the underlying securities
thereof) unless the Securities (and the underlying securities thereof) are registered or such registration is not required in the opinion of counsel for the Company. 
 (d) Purchaser is familiar with the provisions of Rule 144 under the Act, as in effect from time to time (“Rule 144”), which, in substance, permit limited public resale of “restricted securities”
acquired, directly or indirectly, from the issuer thereof (or from an affiliate of such issuer), in a non-public offering subject to the satisfaction of certain conditions. Unless the Company registers the Securities (and the underlying securities
thereof) under the Act, the Securities (and the underlying securities thereof) may be resold by Purchaser only in certain limited circumstances subject to the provisions of Rule 144, which requires, among other things: (i) the availability of
certain public information about the Company and (ii) the resale occurring following the required holding period under Rule 144 after Purchaser has purchased, and made full payment of (within the meaning of Rule 144), the securities to be sold.

 (e) Purchaser further understands that at the time Purchaser wishes to sell the Securities there may be no public market upon which to
make such a sale, and that, even if such a public market then exists, the Company may not be satisfying the current public information requirements of Rule 144, and that, in such event, Purchaser would be precluded from selling the Securities (and
the underlying securities thereof) under Rule 144 even if the minimum holding period requirement had been satisfied. Notwithstanding Sections 6(d) and (e) hereof, Purchaser understands that he may be considered a promoter of the Company and
understands that it is the position of the Securities and Exchange Commission (the “SEC”) that promoters or affiliates of a blank check company and their transferees, both before and after a Business Combination, would act as an
“underwriter” under the Act when reselling the securities of a blank check company. Accordingly, the SEC believes that those securities can be resold only through a registered offering and that Rule 144 would not be available for those
resale transactions despite technical compliance with the requirements of Rule 144. 
 (f) Purchaser represents that Purchaser is an
“accredited investor” as that term is defined in Rule 501 of Regulation D promulgated by the SEC under the Act. 
 (g) Purchaser
has all necessary power and authority to enter into this Agreement and to consummate the transactions contemplated hereby. This Agreement has been duly executed and delivered by Purchaser. Subject to the terms and conditions of this Agreement, this
Agreement constitutes the valid, binding and enforceable obligation of Purchaser, enforceable in accordance with its terms, except as enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent
transfer or similar laws of general application now or hereafter in effect affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforcement is sought in a proceeding at law or in equity); and
(ii) the applicability of the federal and state securities laws and public policy as to the enforceability of the indemnification provisions of this Agreement. The purchase by Purchaser of the Securities does not conflict with any material
contract by which Purchaser or his property is bound, or any laws or regulations or decree, ruling or judgment of any court applicable to Purchaser or his property. The principal place of business of Purchaser is as set forth on the signature page
hereto. 
  

 3 

 (h) Purchaser did not decide to enter into this Agreement as a result of any general solicitation or
general advertising within the meaning of Rule 502(c) of the Securities Act. 
 (i) Purchaser understands that no United States federal or
state agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Securities or the fairness or suitability of the investment in the Securities, nor have such authorities passed upon or
endorsed the merits of the offering of the Securities. 
 7. Company Representations and Warranties. The Company hereby represents and
warrants to Purchaser that the Company has all necessary corporate power and authority to enter into this Agreement and to consummate the transactions contemplated hereby. All corporate action necessary to be taken by the Company to authorize the
execution, delivery and performance of this Agreement and all other agreements and instruments delivered by the Company in connection with the transactions contemplated hereby has been duly and validly taken and this Agreement has been duly executed
and delivered by the Company. Subject to the terms and conditions of this Agreement, this Agreement constitutes the valid, binding and enforceable obligation of the Company, enforceable in accordance with its terms, except as enforceability may be
limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer or similar laws of general application now or hereafter in effect affecting the rights and remedies of creditors and by general principles of
equity (regardless of whether enforcement is sought in a proceeding at law or in equity); and (ii) the applicability of the federal and state securities laws and public policy as to the enforceability of the indemnification provisions of this
Agreement. The sale by the Company of the Securities does not conflict with the certificate of incorporation or by-laws of the Company or any material contract by which the Company or its property is bound, or any federal or state laws or
regulations or decree, ruling or judgment of any United States or state court applicable to the Company or its property. 
 8.
Indemnification. Purchaser hereby agrees to indemnify and hold harmless the Company and the Company’s officers, directors, stockholders, employees, agents, and attorneys against any and all losses, claims, demands, liabilities and
expenses (including reasonable legal or other expenses incurred by each such person in connection with defending or investigating any such claims or liabilities, whether or not resulting in any liability to such person or whether incurred by the
indemnified party in any action or proceeding between the indemnitor and indemnified party or between the indemnified party and any third party) to which any such indemnified party may become subject, insofar as such losses, claims, demands,
liabilities and expenses (a) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact made by Purchaser and contained herein, or (b) arise out of or are based upon any breach by Purchaser of any
representation, warranty or agreement made by Purchaser contained herein. 
 9. Miscellaneous. 
 (a) Notices. All notices required or permitted hereunder shall be in writing and shall be deemed effectively given: (i) upon personal delivery
to the party to be notified, (ii) when sent by confirmed facsimile if sent during normal business hours of the recipient, and if not during normal business hours of the recipient, then on the next business day, (iii) five calendar days
after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (iv) one business day after deposit with a nationally recognized overnight courier, specifying next day delivery, with written verification of
receipt. All communications shall be sent to the other party hereto at such party’s address hereinafter set forth on the signature page hereof, or at such other address as such party may designate by ten days advance written notice to the other
party hereto. 
 (b) Successors and Assigns. This Agreement shall inure to the benefit of the successors and assigns of the Company
and, subject to the restrictions on transfer herein set forth, shall be binding upon Purchaser and Purchaser’s successors and assigns. 
  

 4 

 (c) Attorneys’ Fees; Specific Performance. Purchaser shall reimburse the Company for all
costs incurred by the Company in enforcing the performance of, or protecting its rights under, any part of this Agreement, including reasonable costs of investigation and attorneys’ fees. 
 (d) Governing Law; Venue. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware without regard to
the principles of conflicts of law thereof. The parties agree that any action brought by either party to interpret or enforce any provision of this Agreement shall be brought in, and each party agrees to, and does hereby, submit to the jurisdiction
and venue of, the appropriate state or federal court for the district encompassing the Company’s principal place of business. 
 (e)
Further Execution. The parties agree to take all such further action(s) as may reasonably be necessary to carry out and consummate this Agreement as soon as practicable, and to take whatever steps may be necessary to obtain any governmental
approval in connection with or otherwise qualify the issuance of the securities that are the subject of this Agreement. 
 (f) Independent
Counsel. Purchaser acknowledges that this Agreement has been prepared on behalf of the Company by Skadden, Arps, Slate, Meagher & Flom LLP, counsel to the Company and that Skadden, Arps, Slate, Meagher & Flom LLP does not
represent, and is not acting on behalf of, Purchaser. Purchaser has been provided with an opportunity to consult with Purchaser’s own counsel with respect to this Agreement. 
 (g) Entire Agreement; Amendment. This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and
supersedes and merges all prior agreements or understandings, whether written or oral. This Agreement may not be amended, modified or revoked, in whole or in part, except by an agreement in writing signed by each of the parties hereto. 

(h) Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable law, the parties agree to
renegotiate such provision in good faith. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be excluded from this Agreement, (ii) the balance of
the Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of the Agreement shall be enforceable in accordance with its terms. 
 (i) Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of which together shall constitute one instrument. This Agreement or any
counterpart may be executed via facsimile or electronic mail transmission, and any such executed facsimile or electronic mail copy shall be treated as an original. 
 (j) Survival. The representations and warranties contained herein will survive the delivery of, and the payment for, the Securities. 
 (k) Waiver of Jury Trial. Each party hereto hereby irrevocably and unconditionally waives the right to a trial by jury in any action, suit,
counterclaim or other proceeding (whether based on contract, tort or otherwise) arising out of, connected with or relating to this Agreement, the transactions contemplated hereby, or the actions of Purchaser in the negotiation, administration,
performance or enforcement hereof. 
  

 5 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above
written. 
  

			
	COMPANY:
	
	HECKMANN CORPORATION
		
	By:	 	 /s/ Richard J. Heckmann

	Name:	 	Richard J. Heckmann
	Title:	 	Chief Executive Officer
	
	Address:
		 	75080 Frank Sinatra Dr.
		 	Palm Desert, California 92211
	
	PURCHASER:
	
	 /s/ Lou L. Holtz

	Lou L. Holtz
	
	Address:

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