Supplemental Indenture


 Exhibit 4.3 
 SUPPLEMENTAL INDENTURE 
 This Supplemental Indenture is entered into as of
February 29, 2012 (this “Supplemental Indenture”), by and among SPN Fairway Acquisition, Inc., a Delaware corporation, A&W Water Service, Inc., a Colorado corporation, AWS, Inc., a Delaware corporation, Hamm &
Phillips Service Company, Inc., a Delaware corporation, Integrated Production Services, Inc., a Delaware corporation, LEED Tool Corporation, a Colorado corporation, Monument Well Service Co., a Delaware corporation, Pumpco Energy Services, Inc., a
Delaware corporation, Rising Star Services, L.P., a Texas limited partnership and Texas CES, Inc., a Texas corporation, (the “New Guarantors”), all of which are subsidiaries of SESI, L.L.C., a Delaware limited liability company (the
“Issuer”), Superior Energy Services, Inc., a Delaware corporation (“Superior Energy”), the guarantors named therein (the “Existing Guarantors”) and The Bank of New York Mellon Trust Company, N.A., a
national banking association (the “Trustee”), as Trustee, registrar, authentication agent and paying agent under the Indenture referred to below. 
 W I T N E S S E T H: 
 WHEREAS, Superior Energy, Issuer, the Existing Guarantors
and the Trustee have heretofore executed and delivered an Indenture dated as of December 6, 2011 (as supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of an aggregate principal amount of
$800.0 million of 7.125% Senior Notes due 2021 of the Issuer (the “Notes”); 
 WHEREAS, the Indenture provides
that under certain circumstances the New Guarantors shall execute and deliver to the Trustee a supplemental indenture pursuant to which the New Guarantors shall unconditionally guarantee all of the Issuer’s Obligations under the Notes and the
Indenture on the terms and conditions set forth herein and under the Indenture (the “Note Guarantee”); and 

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

 NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is
hereby acknowledged, the parties mutually covenant and agree for the equal and ratable benefit of the Holders as follows: 

ARTICLE I 

DEFINITIONS 
 1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words “herein,”
“hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof. 

  
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 ARTICLE II 
 REPRESENTATIONS; AGREEMENT TO BE BOUND; GUARANTEE 
 1.
Representations. Each New Guarantor represents and warrants to the Trustee as follows: 
 (a) It is duly organized,
validly existing and in good standing under the laws of its jurisdiction of organization. 
 (b) The execution, delivery and
performance by it of this Supplemental Indenture have been authorized and approved by all necessary corporate or limited liability company action on its part. 
 2. Agreement to be Bound. Each New Guarantor hereby becomes a party to the Indenture as a Guarantor and as such shall have all of the rights and be subject to all of the obligations and agreements
of a Guarantor under the Indenture. Each New Guarantor agrees to be bound by all of the provisions of the Indenture applicable to a Guarantor and to perform all of the obligations and agreements of a Guarantor under the Indenture. 

3. Guarantee. Each New Guarantor agrees, on a joint and several basis with all the existing Guarantors, to fully, unconditionally
and irrevocably Guarantee to each Holder of the Notes and the Trustee the Obligations pursuant to Article 10 of the Indenture on a senior unsecured basis. 
 ARTICLE III 
 MISCELLANEOUS 

1. Notices. All notices and other communications to the New Guarantors shall be given as provided in the Indenture to the New
Guarantors, at their address set forth below, with a copy to the Issuer as provided in the Indenture for notices to the Issuer. 

2. Parties. Nothing expressed or mentioned herein is intended or shall be construed to give any Person, firm or corporation, other
than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained. 

3. Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New
York. 
 4. Severability Clause. In case any provision in this Supplemental Indenture shall be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

 5. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the
Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder
heretofore or 

  
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hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or with respect to
the recitals contained herein, all of which recitals are made solely by the other parties hereto. 
 6. Counterparts. The
parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement. 
 7. Headings. The headings of the Articles and the sections in this Supplemental Indenture are for convenience of reference only and shall not be deemed to alter or affect the meaning or
interpretation of any provisions hereof. 
 [Signature pages follow.] 

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

			
	 SPN FAIRWAY ACQUISITION, INC.
 A&W WATER SERVICE, INC.
 AWS, INC.
 HAMM & PHILLIPS SERVICE COMPANY, INC.
 INTEGRATED PRODUCTION SERVICES, INC.

LEED TOOL CORPORATION
 MONUMENT WELL SERVICE
CO.
 PUMPCO ENERGY SERVICES, INC.

RISING STAR SERVICES, L.P.
 TEXAS CES,
INC.

		
	By: 	 	/s/ William B. Masters
		 	Name:  William B. Masters
		 	Title:    Authorized Representative
		 	
		 	Address: 601 Poydras Street, Suite 2400
		 	New Orleans, Louisiana 70130
	
	SESI, L.L.C.
	By:	 	Superior Energy Services, Inc.,
		 	its managing member
		
	By:	 	/s/ William B. Masters
		 	Name:  William B. Masters
		 	 Title:    Executive Vice President and General
             Counsel

	
	SUPERIOR ENERGY SERVICES, INC.
		
	By:	 	/s/ William B. Masters
		 	Name:  William B. Masters
		 	 Title:    Executive Vice President and General
             Counsel




  
 [Signature
page to 7.125% Senior Notes 
 due 2021 Supplemental Indenture] 







  

			
	 1105 PETERS ROAD, L.L.C.
 ADVANCED OILWELL SERVICES, INC.
 BLOWOUT TOOLS, INC.

CONCENTRIC PIPE AND TOOL RENTALS, L.L.C.
 CONNECTION TECHNOLOGY, L.L.C.
 CSI TECHNOLOGIES, LLC

DRILLING LOGISTICS, L.L.C.
 FASTORQ,
L.L.C.
 H.B. RENTALS, L.C.

INTERNATIONAL SNUBBING SERVICES, L.L.C.

NON-MAGNETIC RENTAL TOOLS, L.L.C.

PRODUCTION MANAGEMENT INDUSTRIES, L.L.C.
 SEMO, L.L.C.
 SEMSE, L.L.C.
 STABIL DRILL SPECIALTIES, L.L.C.
 SUB-SURFACE TOOLS, L.L.C.

SUPERIOR HOLDING, INC.
 SUPERIOR ENERGY SERVICES,
L.L.C.
 SUPERIOR ENERGY SERVICES COLOMBIA, L.L.C.
 SUPERIOR INSPECTION SERVICES, L.L.C.
 WARRIOR ENERGY SERVICES CORPORATION

WILD WELL CONTROL, INC.
 WORKSTRINGS
INTERNATIONAL, L.L.C.

		
	By: 	 	/s/ William B. Masters
		 	Name:  William B. Masters
		 	Title:    Authorized Representative
	
	THE BANK OF NEW YORK MELLON
	    TRUST COMPANY, N.A., as Trustee
		
	By:	 	/s/ Craig Kaye
		 	Name:  Craig Kaye
		 	Title:    Vice President



  
 [Signature
page to 7.125% Senior Notes 
 due 2021 Supplemental Indenture]