Document:

Exhibit
      10.6

    

    AMENDMENT
      NO. 1 TO THE OPERATIONS AND PROCEEDS AGREEMENT

     

    This
      Amendment No. 1 (this “Amendment”) to the Operations and Proceeds Agreement (the
“Agreement”), relating to the Dominugez Field and dated October 10, 2006, is
      entered into this 17th
      day of
      June, 2008, by and between BreitBurn Energy Company L.P. (“Owner-Operator”)
      and
      BreitBurn Operating L.P. (“Counterparty”).
      Capitalized terms used but not defined shall have the meanings assigned to
      them
      in the Agreement.

     

    WITNESSETH

     

    WHEREAS,
      in connection with the sale by each of Pro GP Corp. and Pro LP Corp of all
      of
      their limited partner interests and limited liability company interests in
      BreitBurn Energy Partners L.P. and BreitBurn Management Company, LLC,
      respectively, Owner-Operator and Counterparty are no longer Affiliates;
      and

     

    WHEREAS,
      the Parties desire to amend and restate the termination provisions set forth
      in
      Section 6.1 of the Agreement.

     

    NOW,
      THEREFORE, for and in consideration of the benefits herein contained and other
      good and valuable consideration, the receipt and sufficiency of which are hereby
      acknowledged, the Parties hereby agree as follows:

     

    1. Section
      6.1 Termination.
      Section
      6.1 of the Agreement is hereby amended and restated in its entirety as
      follows:

     

    “This
      Agreement shall terminate upon the first to occur of:

     

    (a) the
      Assignment executed pursuant to Section 4.1 becoming effective in accordance
      with its terms; and 

     

    (b) Owner-Operator
      and Counterparty mutually agree in writing to such termination.”

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

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

    

    
      	BREITBURN
              ENERGY COMPANY L.P.,
	a
              Delaware limited partnership
	 	 
	
              By: 

            	   
              /s/ Randall H. Breitenbach
	 	
              Name:   
                Randall H. Breitenbach

            
	 	
              Title:     
                Co-Chief Executive Officer

            

    

    

      
        	
                BREITBURN
                  OPERATING L.P.,

              
	
                a
                  Delaware limited partnership

              
	 	 
	
                By: 

              	
                BreitBurn
                  Operating GP, LLC, a Delaware

                limited
                  liability company, its general
                  partner

              

      

    

    

    
      	
              By: 

            	   
              /s/ Randall H. Breitenbach
	 	
              Name:  Randall
                H. Breitenbach

            
	 	
              Title:   
                Co-Chief Executive Officer

            

    

     

    
      Signature
        PageExhibit
      10.7

    

    AMENDMENT
      NO. 1 TO THE SURFACE OPERATING AGREEMENT

     

    This
      Amendment No. 1 (this “Amendment”) to the Surface Operating Agreement (the
“Agreement”), dated October 10, 2006, is entered into this 17th day
      of
      June, 2008 (the “Effective Date”), by and between BreitBurn Energy Company L.P.
      and its predecessor BreitBurn Energy Corporation (collectively “Surface
      Operator”)
      and
      BreitBurn Operating L.P. (“Owner”). Capitalized terms used but not defined shall
      have the meanings assigned to them in the Agreement.

     

    WHEREAS,
      in connection with the sale by each of Pro GP Corp. and Pro LP Corp. of all
      of
      their limited partner interests and limited liability company interests in
      BreitBurn Energy Partners L.P. and BreitBurn Management, LLC, respectively,
      the
      Parties desire to amend and restate the termination provisions set forth in
      Section 6.1 of the Agreement;

     

    NOW,
      THEREFORE, for and in consideration of the benefits herein contained and other
      good and valuable consideration, the receipt and sufficiency of which are hereby
      acknowledged, the Parties hereby agree as follows:

     

    1. Section
      6.1 Termination.
      Section
      6.1 of the Agreement is hereby amended and restated in its entirety as
      follows:

     

    “This
      Agreement shall terminate upon the first to occur of:

     

    (a) the
      assignment by Surface Operator to Owner of the Surface Use Agreement following
      the receipt of all consents necessary therefor; and

     

    (b) the
      Owner
      and Surface Operator mutually agree in writing to such
      termination.”

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

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

     

    
      	
              BREITBURN
                ENERGY COMPANY L.P.,

            
	
              a
                Delaware limited partnership

            

    

    

    
      	
              By:

            	   
              /s/ Randall H. Breitenbach
	 	
              Name:

            	
              Randall
                H. Breitenbach

            
	 	
              Title:

            	
              Co-Chief
                Executive Officer

            

    

    

      
        	
                BREITBURN
                  ENERGY CORPORATION,

              
	
                a
                  California corporation

              

      

    

    

    
      	
              By:

            	   
              /s/ Randall H. Breitenbach
	 	
              Name:

            	
              Randall
                H. Breitenbach

            
	 	
              Title:

            	
              Co-President

            

    

    

    
      	
              BREITBURN
                OPERATING L.P., 

            
	
              a
                Delaware limited partnership

            

    

    

    
      	
              By:

            	
              BreitBurn
                Operating GP, LLC, a Delaware limited liability company, its general
                partner

            
	 	 	 	 
	 	
              By:

            	   
              /s/ Randall H. Breitenbach
	 	 	
              Name:

            	
              Randall
                H. Breitenbach

            
	 	 	
              Title:

            	
              Co-Chief
                Executive Officer

            

    

    

    Signature
      PageExhibit
      10.8

    

    Execution
      Copy

    

    ACKNOWLEDGEMENT
      OF TERMINATION

     

    June
      17,
      2008

     

    Provident
      Energy Trust

    2100,
      250 – 2nd Street 

    Calgary,
      Alberta T2P 0C1

    Canada

    

    
      	
              Re:

            	
              Omnibus
                Agreement, dated October 10, 2006 (the “Omnibus
                Agreement”),
                by and among Provident Energy Trust, an open-ended unincorporated
                investment trust formed under the laws of the Province of Alberta
                (“Provident”),
                Pro GP Corp., a Delaware corporation, BreitBurn Energy Company L.P.,
                a
                Delaware limited partnership, BreitBurn GP, LLC, a Delaware limited
                liability company (the “General
                Partner”),
                and BreitBurn Energy Partners L.P., a Delaware limited partnership
                (the
                “Partnership”).

            

    

     

    Ladies
      and Gentlemen:

     

    Reference
      is hereby made to the Omnibus Agreement for all purposes. Any capitalized term
      used but not defined herein has the meaning given such term in the Omnibus
      Agreement.

     

    Upon
      the
      sale by Provident of its limited partner interests in the Partnership (the
      “Partnership
      Interests”)
      and
      its limited liability company interests in BreitBurn Management (the
“BreitBurn
      Management Interests”)
      to the
      Partnership on June 17, 2008 (the “Closing
      Date”),
      Provident and its Affiliates no longer maintain a direct or indirect controlling
      interest in the General Partner.

     

    In
      connection therewith, the Parties acknowledge and agree that effective
      concurrently with the consummation on the Closing Date of such purchase and
      sale
      of the Partnership Interests and the BreitBurn Management Interests (a) all
      rights of the Partnership Group under Section 3.1, if any, of the Omnibus
      Agreement in connection with the sale by Provident of the Partnership Interests
      and BreitBurn Management Interests to the Partnership shall be waived and (b)
      the Omnibus Agreement shall be terminated in all respects. 

     

    Please
      indicate your acknowledgement of and agreement to the termination of the Omnibus
      Agreement and other matters described above by executing this acknowledgement
      letter agreement in the space provided below.

     

    [Signature
      page follows.]

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    
      	
              Sincerely,

            
	 	
            
	
              BREITBURN
                GP, LLC

            
	 	 
	
              By:

            	
                 
                /s/ James G. Jackson    

            
	 	
              Name:
                James G. Jackson

            
	 	
              Title:
                Chief Financial Officer

            
	 	 
	
              BREITBURN
                ENERGY PARTNERS L.P.

            
	 	 
	
              By:

            	
              BreitBurn
                GP, LLC,

            
	 	
              its
                general partner

            
	 	 
	
              By:

            	
                 
                /s/ James G. Jackson

            
	 	
              Name:
                James G. Jackson

            
	 	
              Title:
                Chief Financial Officer

            

    

    

    Agreed
      to
      and accepted

    this
      17th
      day of
      June, 2008:

    

    
      	
              PROVIDENT
                ENERGY TRUST

            	 	
              PRO
                LP CORP.

            
	 	 	 	 	 
	
              By:

            	
                 
                /s/ Thomas W. Buchanan

            	 	
              By:

            	
              
                   
                  /s/ Thomas W. Buchanan

              

            
	 	
              Name:
                Thomas W. Buchanan

            	 	 	
              Name:
                Thomas W. Buchanan

            
	 	
              Title:
                President

            	 	 	
              Title:
                

            

    

    

    
      	
              PRO
                GP CORP.

            	 	
              BREITBURN
                ENERGY COMPANY L.P.

            
	 	 	 	 	 
	 	 	 	
              By:

            	
              Pro
                GP Corp., its general partner

            
	
              By:

            	
                 
                /s/ Thomas W. Buchanan

            	 	 	 
	 	
              Name:
                Thomas W. Buchanan

            	 	 	 
	 	
              Title:
                President

            	 	 	 
	 	 	 	
              By:

            	
                 
                /s/ Thomas W. Buchanan

            
	 	 	 	 	
              Name:
                Thomas W. Buchanan

            
	 	 	 	 	
              Title:
                President

            

    

    

    Signature
      Page

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