Document:

Exhibit 10.1

 Exhibit 10.1 
 CONTRIBUTION AGREEMENT 
 BETWEEN 

CAIMAN ENERGY, LLC 
 AND 
 WILLIAMS PARTNERS L.P. 

DATED AS OF MARCH 19, 2012 

 TABLE OF CONTENTS 

 

					
	 	  	Page	 
	 Article 1 DEFINITIONS
	  	 	1	  
	 Section 1.1 Definitions
	  	 	1	  
	 Section 1.2 Construction
	  	 	10	  
		
	 Article 2 PURCHASE AND SALE
	  	 	11	  
	 Section 2.1 Purchase and Sale
	  	 	11	  
	 Section 2.2 Closing
	  	 	11	  
	 Section 2.3 Purchase Price Adjustments
	  	 	13	  
	 Section 2.4 Purchase Price Allocation
	  	 	15	  
	 Section 2.5 Tax Treatment of Contribution
	  	 	16	  
		
	 Article 3 REPRESENTATIONS AND WARRANTIES REGARDING CONTRIBUTOR AND THE COMPANY
	  	 	16	  
	 Section 3.1 Organization
	  	 	16	  
	 Section 3.2 Authority; Enforceability
	  	 	17	  
	 Section 3.3 No Conflicts; Consents and Approvals
	  	 	17	  
	 Section 3.4 Capitalization; Ownership
	  	 	18	  
	 Section 3.5 Financial Statements
	  	 	18	  
	 Section 3.6 Absence of Certain Changes
	  	 	19	  
	 Section 3.7 No Undisclosed Material Liabilities; Debt
	  	 	20	  
	 Section 3.8 Material Contracts
	  	 	21	  
	 Section 3.9 Litigation
	  	 	23	  
	 Section 3.10 Compliance with Laws; Permits
	  	 	23	  
	 Section 3.11 Properties
	  	 	24	  
	 Section 3.12 Intellectual Property
	  	 	25	  
	 Section 3.13 Environmental Matters
	  	 	26	  
	 Section 3.14 Employees
	  	 	28	  
	 Section 3.15 Benefit Plans
	  	 	29	  
	 Section 3.16 Taxes
	  	 	30	  
	 Section 3.17 Insurance
	  	 	31	  
	 Section 3.18 Brokers’ Fees
	  	 	31	  
	 Section 3.19 Sufficiency of Assets
	  	 	31	  
	 Section 3.20 Related Party Transactions
	  	 	31	  
	 Section 3.21 Banks; Power of Attorney
	  	 	32	  
	 Section 3.22 Corporate Records
	  	 	32	  
	 Section 3.23 Investment Representations
	  	 	32	  
	 Section 3.24 Investigation; No Other Representations
	  	 	33	  
		
	 Article 4 REPRESENTATIONS AND WARRANTIES OF ACQUIRER
	  	 	34	  
	 Section 4.1 Organization
	  	 	34	  
	 Section 4.2 Authority; Enforceability
	  	 	34	  
	 Section 4.3 No Conflicts; Consents and Approvals
	  	 	35	  
	 Section 4.4 Investment Representations
	  	 	35	  

  
 i 

 Table of Contents 

(Continued) 
  

					
	 	  	Page	 
	 Section 4.5 Litigation
	  	 	36	  
	 Section 4.6 Financing
	  	 	36	  
	 Section 4.7 Foreign Person
	  	 	36	  
	 Section 4.8 Brokers’ Fees
	  	 	36	  
	 Section 4.9 Capitalization
	  	 	37	  
	 Section 4.10 Organizational Documents
	  	 	37	  
	 Section 4.11 SEC Filings; Controls; Financial Statements
	  	 	37	  
	 Section 4.12 Investigation; No Other Representations
	  	 	38	  
		
	 Article 5 COVENANTS
	  	 	39	  
	 Section 5.1 Conduct and Operations
	  	 	39	  
	 Section 5.2 Access to Information
	  	 	42	  
	 Section 5.3 Resignation of Officers and Managers
	  	 	44	  
	 Section 5.4 Use of Contributor’s Names and Marks
	  	 	44	  
	 Section 5.5 Efforts; Further Assurances
	  	 	45	  
	 Section 5.6 Public Announcements
	  	 	47	  
	 Section 5.7 Surety Bonds
	  	 	47	  
	 Section 5.8 Employee Matters
	  	 	47	  
	 Section 5.9 Termination and Release Relating to Related-Party Transactions
	  	 	50	  
	 Section 5.10 Monthly Financial Statements
	  	 	50	  
	 Section 5.11 Repayment and Satisfaction of Scheduled Debt
	  	 	50	  
	 Section 5.12 Environmental Matters
	  	 	50	  
	 Section 5.13 Exclusive Dealing
	  	 	51	  
	 Section 5.14 Restrictions on Transfer of Equity Consideration
	  	 	51	  
	 Section 5.15 Non-Competition; Non-Solicitation
	  	 	52	  
	 Section 5.16 Casualty Event
	  	 	53	  
	 Section 5.17 Assignment of Certain Insurance Policies
	  	 	54	  
	 Section 5.18 Financing Cooperation
	  	 	55	  
		
	 Article 6 TAX MATTERS
	  	 	55	  
	 Section 6.1 Transfer Taxes
	  	 	55	  
	 Section 6.2 Tax Returns
	  	 	55	  
	 Section 6.3 Pre-Effective Straddle Period Taxes
	  	 	56	  
	 Section 6.4 Amended Tax Returns
	  	 	56	  
	 Section 6.5 Tax Refunds
	  	 	56	  
	 Section 6.6 Cooperation
	  	 	56	  
		
	 Article 7 CONDITIONS TO CLOSING
	  	 	57	  
	 Section 7.1 Conditions to Obligations of All Parties
	  	 	57	  
	 Section 7.2 Conditions to Obligations of Acquirer
	  	 	57	  
	 Section 7.3 Conditions to Obligations of Contributor
	  	 	58	  
	 Section 7.4 Frustration of Closing Conditions
	  	 	59	  

  
 ii 

 Table of Contents 

(Continued) 
  

					
	 	  	Page	 
	 Article 8 TERMINATION
	  	 	59	  
	 Section 8.1 Grounds for Termination
	  	 	59	  
	 Section 8.2 Effect of Termination
	  	 	60	  
		
	 Article 9 SURVIVAL; Indemnification
	  	 	60	  
	 Section 9.1 Survival
	  	 	60	  
	 Section 9.2 Indemnification
	  	 	61	  
	 Section 9.3 Third-Party Claim Procedures
	  	 	64	  
	 Section 9.4 Direct Claim Procedures
	  	 	66	  
	 Section 9.5 Calculation of Losses
	  	 	66	  
	 Section 9.6 Exclusivity
	  	 	67	  
	 Section 9.7 Non-Recourse
	  	 	67	  
		
	 Article 10 MISCELLANEOUS
	  	 	67	  
	 Section 10.1 Notices
	  	 	67	  
	 Section 10.2 Amendments and Waivers
	  	 	69	  
	 Section 10.3 Expenses
	  	 	69	  
	 Section 10.4 Successors and Assigns; Assignment
	  	 	69	  
	 Section 10.5 Governing Law
	  	 	69	  
	 Section 10.6 Consent to Jurisdiction
	  	 	69	  
	 Section 10.7 Counterparts; Effectiveness; Third-Party Beneficiaries
	  	 	70	  
	 Section 10.8 Notification of Certain Matters
	  	 	70	  
	 Section 10.9 Entire Agreement
	  	 	71	  
	 Section 10.10 Severability
	  	 	71	  
	 Section 10.11 Disclosure Schedules
	  	 	71	  
	 Section 10.12 Specific Performance
	  	 	71	  
	 Section 10.13 Waiver of Conflicts; Attorney Client Privilege
	  	 	72	  
	 Section 10.14 No Presumption Against Drafting Party
	  	 	72	  
	 Section 10.15 Mediation
	  	 	72	  

  
 iii

 CONTRIBUTION AGREEMENT 

THIS CONTRIBUTION AGREEMENT (this “Agreement”) is entered into as of March 19, 2012 by and between Caiman
Energy, LLC, a Delaware limited liability company (“Contributor”), and Williams Partners L.P., a Delaware limited partnership (“Acquirer”). Each of the parties to this Agreement is sometimes referred
to individually in this Agreement as a “Party” and all of the parties to this Agreement are sometimes collectively referred to in this Agreement as the “Parties.” 

W I T N E S S E T H : 
 WHEREAS, Contributor owns 100% of the outstanding membership interests (collectively, the “Purchased Interests”) of Caiman Eastern Midstream, LLC, a Texas limited liability company
(the “Company”); and 
 WHEREAS, subject to the terms and conditions set forth in this Agreement,
Acquirer desires to acquire from Contributor, and Contributor desires to sell to Acquirer, all of the Purchased Interests. 

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants and agreements herein contained and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, and intending to be legally bound hereby, the Parties agree as follows: 
 ARTICLE 1 
 DEFINITIONS 

Section 1.1 Definitions. 
 (a) As used herein, the following terms have the following meanings: 

“Affiliate” means, with respect to any Person, any other Person directly or indirectly Controlling, Controlled by
or Under Common Control with such Person. After the Closing, the Company shall not be considered an Affiliate of Contributor and the Company shall be deemed an Affiliate of Acquirer. 

“Balance Sheet Date” means December 31, 2011. 

“Business Day” means a day, other than Saturday, Sunday or other day on which commercial banks in Dallas, Texas
are authorized or required by Law to close. 
 “CERCLA” means the Comprehensive Environmental Response,
Compensation and Liability Act of 1980, as amended by the Superfund Amendments and Reauthorization Act of 1986, 42 U.S.C. § 9601 et seq. 
 “Code” means the United States Internal Revenue Code of 1986, as amended. 

  
 1 

 “Company Intellectual Property Rights” means Intellectual Property
Rights owned by the Company. 
 “Contract” means any note, bond, mortgage, indenture, deed of trust,
license, lease, agreement, contract or other legally binding instrument or contractual obligation (other than any Right-of-Way). 
 “Contributor’s Names and Marks” means any trade name, trademark, service mark or logo used by Contributor or the Company prior to the Closing, including “Caiman,”
“Caiman Energy” and “Caiman Eastern Midstream” and all formatives thereof and any Internet domain names comprising the foregoing. 
 “Control,” including the correlative terms “Controlling,” “Controlled by” and “Under Common Control with” means possession, directly or indirectly
(through one or more intermediaries), of the power to direct or cause the direction of management or policies (whether through ownership of securities or any partnership or other ownership interest, by contract or otherwise) of a Person. 

“Co-Employer” means Insperity PEO Services LP, a Delaware limited partnership. 

“Debt Financing Sources” means, collectively, the agents, lead arrangers, bookrunners, lenders and other entities
that have committed to provide or otherwise entered into agreements in connection with any Debt Financing. 

“Disclosure Schedules” means the disclosure schedule dated the date of this Agreement regarding this Agreement
that has been provided by Contributor to Acquirer prior to the execution and delivery of this Agreement. 
 “Employee
Plan” means each “employee benefit plan” within the meaning of Section 3(3) of ERISA (including multiemployer plans within the meaning of Section 3(37) of ERISA and multiple employer plans within the meaning of 29
CFR § 4001.2) and any and all employment, deferred compensation, change in control, severance, termination, employee loan (or advance), employee benefit, retiree benefit, retention, bonus, pension, profit sharing, savings, retirement,
welfare, incentive compensation, stock or equity based compensation, stock purchase, stock appreciation, fringe benefit, vacation, paid time off, supplemental retirement, commission incentive or other similar agreements, plans, programs, policies,
understandings or arrangements, under which any current or former employees, directors, members, managers or independent contractors of the Company participate or have any present or future right to benefits or with respect to which the Company has
or could have any liability (contingent or otherwise). 
 “Environmental Covenant” means the
Environmental Covenant dated August 15, 2011 by and between the Company, Olin Corporation and Honeywell International, Inc. 
 “Environmental Laws” means any existing Law relating to the protection of the environment, natural resources or wildlife, or relating to the use, refinement, handling, treatment,
removal, storage, production, manufacture, transportation, Release or threatened Release of Hazardous Materials, including CERCLA and any Law relating to exposure to Hazardous Materials or to human health. 

  
 2 

 “Environmental Permits” means any and all Permits and registrations,
in each case required under any Environmental Laws. 
 “EPA” means the United Stated Environmental
Protection Agency. 
 “Equity Interests” means capital stock, partnership or membership interests or
units (whether general or limited), and any other interest or participation that confers on a Person the right to receive a share of the profits and losses of the issuing entity. 

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended. 

“ERISA Affiliate” of any entity means any other entity (whether or not incorporated) which, together with such
entity, would be treated as a single employer under Section 414 of the Code. 
 “Escrow Agent”
means Wells Fargo N.A. 
 “Escrow Account” has the meaning ascribed to such term in the Escrow
Agreement. 
 “Escrow Agreement” means an escrow agreement among Contributor, Acquirer and the Escrow
Agent, substantially in the form attached hereto as Exhibit B. 
 “Escrow Property” means,
with respect any particular point in time, the aggregate amount of Escrow Units or cash, as applicable, then contained in the Escrow Account. 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended. 
 “Fraud” means actual fraud involving a knowing and intentional misrepresentation of a material fact and, for the avoidance of doubt, does not include negligent misrepresentation or
omission. 
 “GAAP” means generally accepted accounting principles in the United States. 

“Governmental Authority” means any federal, state, tribal or local governmental authority, department, court or
agency, including any political subdivision thereof, and any arbitrating body, commission or quasi-governmental authority or self-regulating organization of competent authority exercising or enlisted to exercise similar power or authority.

 “Hazardous Materials” means any substance, material or waste, whether solid, liquids or gaseous, that
is listed, defined, regulated, classified, or otherwise characterized under or pursuant to any Environmental Laws, as a “hazardous substance,” “toxic substance,” “pollutant,” “radioactive material” or
“contaminant” and shall include petroleum and its by-products, polychlorinated biphenyls, urea-formaldehyde insulation, asbestos, hazardous waste, universal waste and mold. 

“HSR Act” means the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended. 

  
 3 

 “Indebtedness” means, without duplication, all obligations
(including any accrued and unpaid interest and any prepayment penalties and other obligations assuming payment at Closing) for (i) any indebtedness of the Company for borrowed money (including accrued and unpaid interest), (ii) any other
indebtedness or other liability of the Company that is evidenced by a note, bond (other than a surety bond) or debenture, (iii) interest rate caps or derivatives related to the Indebtedness described in clauses (i) or
(ii) above, (iv) any deferred purchase price for property or services (other than current trade payables incurred in the ordinary course of business) payable by the Company, (v) any indebtedness of the Company under any leases
which are or should have been, in accordance with GAAP, recorded as capital leases, (vi) all obligations of the Company in respect of any letters of credit (to the extent drawn), (vii) hedging obligations of the Company,
(viii) indebtedness of the type referred to in clauses (i) through (vii) above secured by any lien or encumbrance on, or security interest in, property (including accounts and contract rights) owned by the Company, and
(ix) obligations under direct or indirect guaranties in respect of, and obligations (contingent or otherwise) to purchase or otherwise acquire, or otherwise to assure a creditor against loss in respect of, indebtedness or obligations of others
of the kinds referred to in clauses (i) through (viii) above. For the avoidance of doubt, the term “Indebtedness” shall include any Indebtedness owed to any Affiliate of the Company. 

“Indebtedness Amount” means the aggregate amount of Indebtedness, as of 11:59 p.m. local time on the day
immediately preceding the Closing Date. 
 “Intellectual Property Right” means rights in any of the
following to the extent subject to protection under Law: (i) trademarks, service marks and trade names; (ii) patents; (iii) copyrights; (iv) Internet domain names; (v) trade secrets and other proprietary and confidential
information; and (vi) any registrations or applications for registration for any of the foregoing. 

“Knowledge” means, (i) with respect to Contributor, the actual knowledge of Jack Lafield, Stephen L. Arata,
Richard D. Moncrief and Danny L. Thompson, after reasonable inquiry of the officers and employees of Contributor and Alan Kane, and (ii) with respect to Acquirer, the actual knowledge of James Scheel, Curt Carmichael and Darrell Bull, after
reasonable inquiry. 
 “Licensed Intellectual Property Rights” means any Intellectual Property Rights
owned by a Third Party that are licensed to the Company. 
 “Law” means any applicable law (statutory,
common or otherwise), regulation, rule, ordinance, statute, act, code (including the Code), constitutional provision, order, decree, ruling, proclamation, resolution, judgment, injunction, decision, declaration, or interpretative or advisory opinion
or letter of a domestic, foreign, tribal or international Governmental Authority. For the avoidance of doubt, “Laws” shall include all Laws enacted or promulgated with respect to any and all matters related to health and safety of
employees, temporary employees, independent contractors or employees of independent contractors at the properties, premises, sites or other locations of employment of applicable employers. 

“Lien” means, with respect to any property or asset, any mortgage, lien, pledge, charge, security interest,
claim, preferential purchase right (including right of first refusal and right of first offer), drag-along right, tag-along right or encumbrance in respect of such property or asset. 

  
 4 

 “Losses” means any and all losses, debts, damages, diminution in
value, penalties, fines, interests, amounts paid in settlement, liens, costs of remediation and corrective action, costs of investigations, capital improvements, Third Party expenses (including reasonable attorneys’ fees and other
professionals’ fees), adverse claims, liabilities and obligations of any kind, character or description, whether accrued or fixed, known or unknown, absolute or contingent, matured or unmatured or determined or determinable, direct or indirect,
asserted or unasserted, liquidated or unliquidated, due or to become due, whether in contract, tort, strict liability or otherwise and including all costs and expenses relating thereto, including those arising under any Law, claim, suit, action,
litigation, arbitration, audit, hearing, investigation, inquiry or other proceeding, those arising under any order, injunction, judgment, decree, ruling, writ, assessment or arbitration award of a Governmental Authority, in each case as qualified by
Section 9.5(b). 
 “Material Adverse Effect” means any change, event, circumstance,
development or occurrence that, individually or in the aggregate with all other changes, events, circumstances, developments and occurrences, (a) is materially adverse to the financial condition, business, assets, liabilities or results of
operation of the Company (it being understood and agreed that, if the aggregate amount of Losses resulting therefrom is $125,000,000 or more, then such change, event, circumstance, development or occurrence shall be deemed to constitute a Material
Adverse Effect) or (b) materially and adversely affects the ability of Contributor to consummate the transactions contemplated by this Agreement; provided that, in the case of clause (a) above, none of the following changes,
events, circumstances, developments or occurrences shall be deemed to constitute, nor shall any be taken into account in determining whether there is or is likely to be a Material Adverse Effect: (i) this Agreement (including the execution and
announcement thereof and compliance with the terms set forth herein), the transactions contemplated by this Agreement or Acquirer’s ownership of the Purchased Interests from and after the Closing, (ii) changes or conditions generally
affecting the industries in which the Company operates, (iii) changes in prices or market conditions for energy commodities, (iv) changes in economic, market, financial, regulatory or political conditions generally, (v) any national
or international event or occurrence, including acts of war, terrorism, earthquakes, hurricanes, tornadoes or other natural disasters, (vi) changes in Law or GAAP, (vii) seasonal fluctuations generally affecting the Company or the
industries in which the Company operates, (viii) the failure of the Company to meet any internal forecasts or budgets for any period prior to, on or after the date of this Agreement, or (ix) any adverse change in or effect on the
Company’s business that is caused by any delay in consummating the Closing as a result of any violation or breach by Acquirer of any covenant, representation or warranty contained in this Agreement which has prevented the satisfaction of any
condition set forth in Article 7, except to the extent any of the changes, events, circumstances, developments or occurrences referred to in clauses (ii) through (vii) above disproportionately impact the Company,
as compared to other companies in the industries in which the Company operates. 
 “Net Working Capital”
means an amount equal to the current assets of the Company minus the current liabilities and long-term deferred revenues of the Company, in each case as of 11:59 p.m. local time on the day immediately preceding the Closing Date as presented
on the Estimated Closing Date Balance Sheet or the Final Closing Date Balance Sheet, as applicable, in each case prepared in accordance with Section 2.3, including Schedule 2.3. For purposes of clarity, expenditures which are
incurred but not paid prior to the Closing will be included as liabilities in Net Working Capital. 

  
 5 

 “Noncompetition Agreements” means the noncompetition agreements
between Acquirer and each of EnCap Energy Infrastructure Fund, L.P., Jack Lafield, Stephen L. Arata, Richard D. Moncrief and Danny L. Thompson, substantially in the form attached hereto as Exhibit C. 

“Olin Environmental Obligations” means any and all liabilities, Losses, responsibilities, indemnities and other
obligations of Olin Corporation under Section 5 of the Olin Purchase Agreement. 
 “Olin Purchase
Agreement” means the Purchase Agreement (Moundsville, West Virginia) dated as of May 9, 2011, between Olin Corporation and Contributor, as amended. 
 “Organizational Documents” means, with respect to any Person, the articles of incorporation, certificate of incorporation, certificate of formation, certificate of limited
partnership, bylaws, limited liability company agreement, operating agreement, partnership agreement, stockholders’ agreement and all other similar documents, instruments or certificates executed, adopted or filed in connection with the
creation, formation or organization of such Person, including any amendments or modifications thereto. 
 “Pending
Claims Account” has the meaning ascribed to such term in the Escrow Agreement. 
 “Permit”
means any approval, authorization, consent, license, permit, certificate, waiver or exemption of a Governmental Authority. 

“Person” means an individual, corporation, partnership, limited liability company, association, trust or other
entity or organization, including a Governmental Authority. 
 “Pre-Approved Capital Expenditures” means
those capital expenditures set forth on Schedule 1.1(a). 
 “Pre-Closing Capital Expenditures
Amount” means the dollar amount of gross capital expenditures (as determined in accordance with GAAP) (a) incurred by the Company on Pre-Approved Capital Expenditures during the period commencing on January 1, 2012 and ending
at 11:59 p.m. local time on the day immediately preceding the Closing Date or (b) incurred by the Company pursuant to any AFE (Approval for Expenditure) approved by the Company after the date of this Agreement and consented to by Acquirer, in
Acquirer’s sole discretion, in either case less the sum of (i) aid in construction receipts from January 1, 2012 through the date of the Estimated Closing Balance Sheet and (ii) aid in construction receivables on the Final
Closing Date Balance Sheet, all as described in great detail on Schedule 2.3. 
 “Pre-Closing
Taxes” means (i) any Taxes owed by Contributor and any of its Affiliates (other than the Company) for any taxable period, (ii) any Taxes imposed upon the Company with respect to (A) any period ending on or before Closing
(a “Pre-Effective Period”) or (B) any taxable period beginning on or before, and ending after, the Closing Date (a “Straddle Period”), but only with respect to the portion of such Straddle Period
ending on and including the Closing Date (such portion, a “Pre-Effective Straddle Period”) as determined pursuant to Section 6.3, (iii) any Taxes attributable to periods, or portions thereof, ending on or
before Closing for which the Company is held liable (A) as a transferee or otherwise through operation of law by reason of 

  
 6 

 
a transaction occurring prior to Closing, or (B) as a result of any Tax sharing, Tax indemnity or Tax allocation agreement or any express agreement to indemnify any other Person entered into
prior to Closing, and (iv) any Taxes imposed as a result of the Company having filed any Tax Return on a combined, consolidated, unitary, affiliated or similar basis with another Person prior to the Closing Date; provided, however, that no Tax
shall be treated as a Pre-Closing Tax to the extent such Tax was taken into account in the determination of Final Net Working Capital. 
 “Purchase Price Adjustment Amount” means an amount (whether a positive or negative number) equal to (i) the sum of the Net Working Capital of the Company and the Pre-Closing
Capital Expenditures Amount, less (ii) the sum of the Target Net Working Capital and the Target Pre-Closing Capital Expenditures Amount, less (iii) the Indebtedness Amount. 

“Registration Rights Agreement” means the registration rights agreement between Acquirer and Contributor,
substantially in the form attached hereto as Exhibit D. 
 “Release” means, when referring
to Hazardous Materials, any release, spill, leak, deposit, dispersal, discharge, disposal of, pumping, pouring, emitting, emptying, injecting, escaping, leaching, migration or dumping into the indoor or outdoor environment, including, without
limitation, any movement through or in the air, soil, surface water, sediment, groundwater or property. 

“Representatives” means, with respect to any Person, the officers, directors, managers, employees, agents,
accountants, advisors, attorneys, bankers and other representatives of such Person. 
 “Scheduled Debt”
means the aggregate amount of Indebtedness, including all principal, interest, fees, prepayment premiums and penalties, if any, identified on Schedule 1.1(b). 
 “SEC” means the United States Securities and Exchange Commission. 
 “Securities Act” means the Securities Act of 1933, as amended. 
 “Superfund Site” means the Hanlin-Allied-Olin Superfund Site located in Moundsville, Marshall County, West Virginia, EPA ID# WVD024185373. 

“Target Net Working Capital” means $30,000,000. 

“Target Pre-Closing Capital Expenditures Amount” means $149,686,472 plus an amount equal to $3,500,000 for
each month (pro-rated for partial months) between March 31, 2012 and the Closing Date. 
 “Tax”
means all taxes, assessments, fees and other charges of any kind imposed by any Governmental Authority, including income, profits, gross receipts, net proceeds, alternative or add on minimum, ad valorem, value added, turnover, sales, use, property,
personal property (tangible and intangible), environmental, stamp, leasing, lease, user, excise, duty, franchise, capital stock, transfer, registration, license, withholding, social security (or similar), unemployment, disability, payroll,
employment, social contributions, fuel, excess profits, occupational, premium, windfall profit, severance, estimated, or other charge of any kind whatsoever, including any interest, penalty or addition thereto, whether disputed or not. 

  
 7 

 “Tax Return” means any return, declaration, report, statement,
information statement, and other document required to be filed with respect to Taxes. 
 “Territory”
means and includes Pennsylvania (except the Utica Shale in the Counties of Lawrence, Mercer, Crawford and Erie) and West Virginia. 
 “Third Party” means any Person other than Contributor, Acquirer or any of their respective Affiliates. 
 “Transaction Documents” means this Agreement, the Escrow Agreement, any certificate required to be delivered hereunder, the Noncompetition Agreements, the Registration Rights
Agreement and the Transition Services Agreement. 
 “Transition Services Agreement” means the transition
services agreement between the Company and Contributor, substantially in the form attached hereto as Exhibit E. 

“Treasury Regulations” means the regulations (including temporary regulations) promulgated by the United States
Department of the Treasury pursuant to and in respect of provisions of the Code. All references in this Agreement to sections of the Treasury Regulations shall include any corresponding provisions or provisions of succeeding, similar or substitute,
temporary or final Treasury Regulations. 
 “Uninsured Casualty Loss Amount” means, with respect to a
Casualty Event, an amount equal to the positive difference, if any, between (i) the amount of Losses resulting from or arising out of the Damaged Portion in accordance with Section 5.16 and (ii) the amount of net proceeds of
Contributor’s insurance policies in respect of such Casualty Event. 
 “WPZ Units” means common
units representing limited partner interests of Acquirer (Williams Partners L.P. (NYSE: WPZ)). 
 (b) Each of the following
terms is defined in the Section set forth opposite such term: 
  

					
	 Acquirer
	  	 	Preamble	  
	 Acquirer Fundamental Representations
	  	 	9.1(a)(i)	  
	 Acquirer Indemnified Parties
	  	 	9.2(a)	  
	 Acquirer SEC Documents
	  	 	4.11(a)	  
	 Agreement
	  	 	Preamble	  
	 Accounting Methodology Schedule
	  	 	2.3(a)	  
	 Allocation
	  	 	2.4	  
	 Antitrust Authority
	  	 	5.5(c)	  
	 Assigned Insurance Policies
	  	 	5.17	  
	 Antitrust Laws
	  	 	5.5(c)	  
	 Basket Amount
	  	 	9.2(b)(i)	  
	 Books and Records
	  	 	5.2(e)	  

  
 8 

					
	 Cash Consideration
	  	 	2.1(b)(ii)	  
	 Casualty Event
	  	 	5.16(a)	  
	 Casualty Event Notice
	  	 	5.16(a)	  
	 Client Service Agreement
	  	 	3.14(b)	  
	 Closing
	  	 	2.2(a)	  
	 Closing Date
	  	 	2.2(a)	  
	 Closing Purchase Price
	  	 	2.1(b)	  
	 Company
	  	 	Recitals	  
	 Company Systems
	  	 	5.16(a)	  
	 Confidentiality Agreement
	  	 	5.2(b)	  
	 Contributor
	  	 	Preamble	  
	 Contributor Fundamental Representations
	  	 	9.1(a)(i)	  
	 Contributor Indemnified Parties
	  	 	9.2(c)	  
	 Covered Employees
	  	 	5.8(a)	  
	 Creditors’ Rights
	  	 	3.2(b)	  
	 Current Representation
	  	 	10.13(a)	  
	 Customer
	  	 	5.15(a)(iii)	  
	 Damaged Portion
	  	 	5.16(a)	  
	 Debt Financing
	  	 	5.18(a)	  
	 Designated Person
	  	 	10.13(a)	  
	 Dispute
	  	 	10.15	  
	 Disputed Item
	  	 	2.3(e)	  
	 Environmental Liability Insurance Policy
	  	 	9.2(b)(iv)	  
	 Equity Consideration
	  	 	2.1(b)(i)	  
	 Escrow Period
	  	 	9.2(e)	  
	 Escrow Units
	  	 	2.2(b)(ii)	  
	 Estimated Closing Date Balance Sheet
	  	 	2.3(a)	  
	 Estimated Indebtedness Amount
	  	 	2.3(a)	  
	 Estimated Net Working Capital
	  	 	2.3(a)	  
	 Estimated Pre-Closing Capital Expenditures Amount
	  	 	2.3(a)	  
	 Estimated Purchase Price Adjustment Amount
	  	 	2.3(a)	  
	 Final Closing Date Balance Sheet
	  	 	2.3(d)	  
	 Final Indebtedness Amount
	  	 	2.3(d)	  
	 Final Net Working Capital
	  	 	2.3(d)	  
	 Final Pre-Closing Capital Expenditures Amount
	  	 	2.3(d)	  
	 Final Pre-Closing Capital Expenditures Schedule
	  	 	2.3(d)	  
	 Final Purchase Price
	  	 	2.1(b)	  
	 Final Purchase Price Adjustment Amount
	  	 	2.3(d)	  
	 Financial Statements
	  	 	3.5(a)	  
	 Highstar
	  	 	5.14(b)	  
	 Indemnified Party
	  	 	9.3(a)	  
	 Indemnifying Party
	  	 	9.3(a)	  
	 Independent Accounting Firm
	  	 	2.3(f)	  
	 Material Contracts
	  	 	3.8(a)	  
	 Material Permits
	  	 	3.10(b)	  
	 Objection Period
	  	 	2.3(e)	  

  
 9 

					
	 Outside Date
	  	 	8.1(b)	  
	 Owned Properties
	  	 	3.11(a)	  
	 Party
	  	 	Preamble	  
	 Permitted Liens
	  	 	3.11(a)	  
	 Post-Closing Representation
	  	 	10.13(a)	  
	 Pre-Effective Period
	  	 	1.1(a)	  
	 Pre-Effective Straddle Period
	  	 	1.1(a)	  
	 Purchased Interests
	  	 	Recitals	  
	 Qualifying Offer
	  	 	5.8(a)	  
	 Released Units
	  	 	9.2(e)(iv)	  
	 Resolution Period
	  	 	2.3(e)	  
	 Restricted Business
	  	 	5.15(a)(i)	  
	 Resolution Period
	  	 	2.3(e)	  
	 Related Persons
	  	 	3.20	  
	 Right-of-Way
	  	 	3.11(c)	  
	 Straddle Period
	  	 	1.1(a)	  
	 Tax Proceeding
	  	 	6.6	  
	 Third Party Agreement
	  	 	3.11(b)	  
	 Third-Party Claim
	  	 	9.3(a)	  
	 Transferred Employees
	  	 	5.8(a)	  
	 Transfer Taxes
	  	 	6.1	  

 Section 1.2 Construction. 

In this Agreement, unless a clear contrary intention appears: (a) pronouns in the masculine, feminine and neuter genders shall be
construed to include any other gender, and words in the singular form shall be construed to include the plural and vice versa; (b) if a term is defined as one part of speech (such as a noun), it shall have a corresponding meaning when used as
another part of speech (such as a verb); (c) the term “including” (and all correlative terms) shall be construed to be expansive rather than limiting in nature and to mean “including, without limitation”; (d) the word
“or” is inclusive; (e) references to Articles and Sections refer to Articles and Sections of this Agreement; (f) the words “this Agreement,” “herein,” “hereof,” “hereby,”
“hereunder” and words of similar import refer to this Agreement as a whole, including the Schedules, and not to any particular subdivision unless expressly so limited; (g) references in any Article or Section or definition to any
clause means such clause of such Article, Section or definition; (h) references to Schedules are to the items identified separately in writing by the Parties as the described Schedules attached to this Agreement, each of which is hereby
incorporated in this Agreement and made a part of this Agreement for all purposes as if set forth in full in this Agreement; (i) all references to money refer to the lawful currency of the United States; (j) references to
“federal” or “Federal” means U.S. federal or U.S. Federal, respectively; (k) all accounting terms used in this Agreement and not expressly defined shall have the meanings given to them under GAAP; (l) any
event contemplated by this Agreement requiring the payment of cash or cash equivalents on a day that is not a Business Day shall be deferred until the next Business Day; (m) the Table of Contents and the Article and Section titles and headings
in this Agreement are inserted for convenience of reference only and are not intended to be a part of, or to affect the meaning or interpretation of, this Agreement; and (n) any reference to “virtual data room” means “DataSite
Project Caiman Energy” and is limited to the electronic files accessible to Acquirer and its Representatives as of the date of this Agreement. 

  
 10 

 ARTICLE 2 
 PURCHASE AND SALE 
 Section 2.1 Purchase and
Sale. 
 (a) Upon the terms and subject to the conditions of this Agreement, at the Closing, Contributor shall sell,
assign, transfer, convey and deliver the Purchased Interests to Acquirer, free and clear of Liens, other than restrictions under applicable securities laws and Liens created by Acquirer, and Acquirer shall purchase the Purchased Interests from
Contributor, in exchange for the aggregate consideration described herein. The aggregate consideration to be paid to Contributor by Acquirer for the purchase of the Purchased Interests shall be the Final Purchase Price (as defined below), an
estimate of which equal to the Closing Purchase Price (as defined below) shall be payable at the Closing as provided in Section 2.2(b). 
 (b) For purposes of this Agreement, the term “Closing Purchase Price” means and consists of the following: 

(i) a number of WPZ Units with a value equal to $720,000,000 (the “Equity Consideration”), which
number shall be calculated by dividing $720,000,000 by a price equal to the volume-weighted average trading price of WPZ Units for the thirty (30) trading day period ending two (2) trading days prior to the date of hereof; and 

(ii) cash consideration (the “Cash Consideration”) consisting of an amount of cash equal to:

 (A) $1,780,000,000; minus 

(B) the absolute value of the Estimated Purchase Price Adjustment Amount if the Estimated Purchase Price Adjustment
Amount (as defined in Section 2.3(a)) is a negative number; plus 
 (C) the Estimated
Purchase Price Adjustment Amount if the Estimated Purchase Price Adjustment Amount is a positive number. 
 The Closing Purchase Price as
finally adjusted pursuant to Section 2.3 below is referred to in this Agreement as the “Final Purchase Price.” 
 Section 2.2 Closing. 
 (a) Subject to the terms and
conditions of this Agreement, the closing (the “Closing”) of the purchase and sale of the Purchased Interests shall take place at the offices of 

  
 11 

 
Vinson & Elkins L.L.P., 1001 Fannin, Houston, Texas 77002, at 10:00 a.m. local time two (2) Business Days after satisfaction or, to the extent permitted by Law, waiver of all
of the conditions set forth in Article 7 (other than any conditions that by their nature are to be satisfied at the Closing but subject to the satisfaction or waiver of such conditions at the Closing), or at such other time or place as
Acquirer and Contributor may agree in writing (the “Closing Date”). 
 (b) At the Closing: 

(i) Acquirer shall deliver or cause to be delivered to Contributor (or one or more Affiliates of Contributor designated
by Contributor prior to the Closing) an amount equal to the Cash Consideration in immediately available funds by wire transfer to an account of Contributor (or one or more Affiliates of Contributor designated by Contributor prior to the Closing)
designated in advance by Contributor; 
 (ii) Acquirer shall deliver or cause to be delivered (A) to
Contributor, a portion of the Equity Consideration consisting of a number of WPZ Units with a value equal to $545,000,000 (which number shall be calculated in accordance with Section 2.1(b)(i)), issued to Contributor and recorded on the
books and records of Acquirer’s transfer agent, and (B) to the Escrow Agent, a portion of the Equity Consideration consisting of a number of WPZ Units with a value equal to $175,000,000 (which number shall be calculated in accordance with
Section 2.1(b)(i)), issued in the name of Contributor (or one or more Affiliates of Contributor designated by Contributor at least three (3) Business Days prior to the Closing) and recorded on the books and records of
Acquirer’s transfer agent, to be held in certificated form by the Escrow Agent under the terms of the Escrow Agreement to satisfy any obligations of Contributor that may arise hereunder after the Closing (the portion of the Equity Consideration
described in this clause (B), the “Escrow Units”); 
 (iii) Contributor
shall deliver or cause to be delivered to Acquirer an instrument assigning the Purchased Interests to Acquirer in substantially the form attached hereto as Exhibit A; 

(iv) each of Acquirer and Contributor shall deliver or cause to be delivered each of the instruments and documents
contemplated to be delivered by such Party pursuant to Article 7; 
 (v) each of Acquirer and
Contributor shall deliver or cause to be delivered duly executed counterpart signatures to each of the other Transaction Documents to which it is a party (and in the case of Contributor, to which the Company is a party); 

(vi) Contributor shall deliver or cause to be delivered such other documents as Acquirer shall reasonably request,
including counterpart signatures to each of the Noncompetition Agreements; and 
 (vii) Acquirer shall pay off
the amount of Scheduled Debt determined by Acquirer (it being understood and agreed that any other Indebtedness shall remain with the Company). 

  
 12 

 Section 2.3 Purchase Price Adjustments. 

(a) At least three (3) full Business Days prior to the Closing Date, Contributor shall prepare and deliver to Acquirer:
(i) Contributor’s good faith estimated balance sheet of the Company as of 11:59 p.m. local time on the day immediately preceding the Closing Date (the “Estimated Closing Date Balance Sheet”) (provided that,
such balance sheet shall not take into account any deferred Tax assets or deferred Tax liabilities or any effects on the assets or liabilities of the Company as a result of the transactions contemplated by this Agreement and shall not be required to
include any notes thereto); (ii) Contributors’ good faith estimate of the Net Working Capital of the Company (the “Estimated Net Working Capital”); (iii) Contributor’s good faith estimate of the
Pre-Closing Capital Expenditures Amount (the “Estimated Pre-Closing Capital Expenditures Amount”); (iv) Contributor’s good faith estimate of the Indebtedness Amount (the “Estimated Indebtedness
Amount”); and (v) Contributor’s good faith estimate of the Purchase Price Adjustment Amount (the “Estimated Purchase Price Adjustment Amount”). The Estimated Closing Date Balance Sheet, the Estimated
Net Working Capital, the Estimated Pre-Closing Capital Expenditures Amount, the Estimated Indebtedness Amount and the Estimated Purchase Price Adjustment Amount shall be prepared and/or calculated in accordance with GAAP applied consistently and in
a manner consistent with the methodologies and examples (including the accounts set forth thereon) set forth in Schedule 2.3 hereto (the “Accounting Methodology Schedule”). 

(b) If the Estimated Purchase Price Adjustment Amount is a positive number, the Closing Purchase Price delivered by Acquirer at the
Closing pursuant to Section 2.2(b) shall be increased by an amount equal to the Estimated Purchase Price Adjustment Amount (as contemplated by Section 2.1(b)(ii)). 

(c) If the Estimated Purchase Price Adjustment Amount is a negative number, the Closing Purchase Price delivered by Acquirer at the
Closing pursuant to Section 2.2(b) shall be decreased by an amount equal to the absolute value of the Estimated Purchase Price Adjustment Amount (as contemplated by Section 2.1(b)(ii)). 

(d) Within one hundred twenty (120) days after the Closing Date, Acquirer shall prepare and deliver, or cause to be prepared and
delivered, to Contributor: (i) a balance sheet of the Company as of 11:59 p.m. local time on the day immediately preceding the Closing Date (the “Final Closing Date Balance Sheet”) (provided that, such balance
sheet shall not take into account any deferred Tax assets or deferred Tax liabilities or any effects on the assets or liabilities of the Company as a result of the transactions contemplated by this Agreement and shall not be required to include any
notes thereto); (ii) Acquirer’s calculation of the Net Working Capital of the Company (the “Final Net Working Capital”), together with a worksheet showing the difference, if any, between the Estimated Net Working
Capital and the Final Net Working Capital; (iii) a schedule (the “Final Pre-Closing Capital Expenditures Schedule”) setting forth Acquirer’s calculation of the Pre-Closing Capital Expenditures Amount (the
“Final Pre-Closing Capital Expenditures Amount”); (iv) Acquirer’s calculation of the Indebtedness Amount (the “Final Indebtedness Amount”); and (v) Acquirer’s calculation of the
Purchase Price Adjustment Amount (the “Final Purchase Price Adjustment Amount”). The Final Closing Date Balance 

  
 13 

 
Sheet, the Final Net Working Capital, the Final Pre-Closing Capital Expenditures Amount, the Final Indebtedness Amount and the Final Purchase Price Adjustment Amount shall be prepared and/or
calculated in accordance with GAAP applied consistently and in a manner consistent with the Accounting Methodology Schedule. In connection with Contributor’s review of the Final Closing Date Balance Sheet, the Final Pre-Closing Capital
Expenditures Schedule and the calculation of the Final Purchase Price Adjustment Amount, Acquirer shall, and shall cause the Company to, (x) permit Contributor and its Representatives to have reasonable access to the books, records and
other documents (including internal work papers, schedules, financial statements and memoranda) of the Company, shall cooperate with Contributor and its Representatives in seeking to obtain work papers from Acquirer and the Company pertaining to the
calculation of the Final Purchase Price Adjustment Amount and provide Contributor with copies thereof (as reasonably requested by Contributor) and (y) provide Contributor and its Representatives reasonable access to Acquirer’s and the
Company’s employees and accountants as reasonably requested by Contributor. 
 (e) Unless Contributor delivers to Acquirer
written notice setting forth in reasonable detail any specific items in Acquirer’s calculation of the Final Purchase Price Adjustment Amount disputed by Contributor (each, a “Disputed Item”) and a written statement
setting forth Contributor’s calculation of each such Disputed Item on or prior to the sixtieth (60th) day after Contributor’s receipt of the Final Closing Date Balance Sheet and the Final Pre-Closing Capital Expenditures
Schedule (such period, the “Objection Period”), Contributor will be deemed to have accepted and agreed to Acquirer’s calculation of the Final Purchase Price Adjustment Amount and such agreement will be final,
binding and conclusive. Any items in Acquirer’s calculation of the Final Purchase Price Adjustment Amount to which Contributor has not given notice of objection within the Objection Period will be deemed to have been agreed upon by the Parties.
If Contributor so notifies Acquirer of its objections to Acquirer’s calculation of the Final Purchase Price Adjustment Amount within the Objection Period, Acquirer and Contributor shall, within thirty (30) days following such notice (the
“Resolution Period”), attempt to resolve the Disputed Items. Any resolution by Acquirer and Contributor during the Resolution Period as to any Disputed Items will be final, binding and conclusive. 

(f) If Acquirer and Contributor do not resolve all Disputed Items by the end of the Resolution Period, then Acquirer and Contributor
shall submit all unresolved Disputed Items to KPMG LLP or such other national independent accounting firm mutually acceptable to Acquirer and Contributor (the “Independent Accounting Firm”) as soon as practicable following
the expiration of the Resolution Period. In such event, each of Acquirer and Contributor shall submit to the Independent Accounting Firm its calculation of the Final Purchase Price Adjustment Amount together with such supporting documentation as it
deems appropriate. The Independent Accounting Firm will resolve such dispute by choosing in its entirety the calculation of the Final Purchase Price Adjustment Amount proposed by either Acquirer or Contributor and will make no other resolution of
such dispute (including by combining elements of either calculation of the Final Purchase Price Adjustment Amount submitted by Acquirer and Contributor). Acquirer and Contributor shall use their respective commercially reasonable efforts to cause
the Independent Accounting Firm to resolve such dispute within thirty (30) days after the date on which the Independent Accounting Firm receives the calculations of the Final Purchase Price Adjustment Amount submitted by Acquirer and
Contributor. The determination of the Independent Accounting Firm shall be conclusive and 

  
 14 

 
binding upon the Parties and shall not be subject to appeal or further review absent manifest error. The costs and expenses of the Independent Accounting Firm will be paid by the Party whose
calculation of the Final Purchase Price Adjustment Amount is not chosen by the Independent Accounting Firm in its resolution of the dispute. The Parties agree that the procedures set forth in this Section 2.3 shall be the sole and
exclusive method for resolving disputes regarding the determination of the Final Purchase Price Adjustment Amount. 
 (g) Within five (5) Business Days after the Final Purchase Price Adjustment Amount is finally determined pursuant to this Section 2.3: 

(i) if the Final Purchase Price Adjustment Amount as finally determined pursuant to this Section 2.3 exceeds
the Estimated Purchase Price Adjustment Amount, Acquirer shall promptly deliver to Contributor, by wire transfer of immediately available funds to the account designated by Contributor, an amount equal to such excess; 

(ii) if the Estimated Purchase Price Adjustment Amount exceeds the Final Purchase Price Adjustment Amount as finally
determined pursuant to this Section 2.3, Contributor shall promptly deliver to Acquirer, by wire transfer of immediately available funds to the account designated by Acquirer, an amount equal to such excess; and 

(iii) if the Final Purchase Price Adjustment Amount as finally determined pursuant to this Section 2.3 is
equal to the Estimated Purchase Price Adjustment Amount, neither Acquirer nor Contributor shall have any further obligation under this Section 2.3. 
 Section 2.4 Purchase Price Allocation. 
 The purchase and sale of the
Purchased Interests shall be treated for federal and applicable state income Tax purposes as the sale and purchase of the assets of the Company, and no Party or any Affiliate thereof shall take any position inconsistent with such treatment.
Contributor and Acquirer shall use commercially reasonable efforts to agree to an allocation of the Final Purchase Price, liabilities of the Company, and any other items constituting consideration for applicable income Tax purposes among the assets
of the Company that complies with Schedule 2.4 and Section 1060 of the Code and the Treasury Regulations promulgated thereunder within ninety (90) days after the Closing Date (the “Allocation”). The
Parties shall use commercially reasonable efforts to update the Allocation in a manner consistent with Schedule 2.4 and Section 1060 of the Code following any adjustment to the Final Purchase Price pursuant to this Agreement.
Contributor and Acquirer shall, and shall cause their Affiliates to, report consistently with the Allocation, as adjusted, in all Tax Returns, including IRS Form 8594 if required, and neither Contributor nor Acquirer shall take any position in any
Tax Return that is inconsistent with the Allocation, as adjusted, in each case, unless required to do so by a final determination as defined in Section 1313 of the Code. Each of Contributor and Acquirer agree to promptly advise each other
regarding the existence of any Tax audit, controversy or litigation related to the Allocation. 

  
 15 

 Section 2.5 Tax Treatment of Contribution. 

The Parties intend that (i) the contribution and assignment of the Purchased Interests by Contributor to Acquirer shall be treated as a contribution
by Contributor to Acquirer of the assets of the Company in exchange for the Equity Interests in a transaction consistent with the requirements of Section 721(a) of the Code; (ii) Acquirer shall be treated as assuming the liabilities of
Contributor or taking the assets of Contributor subject to the liabilities of Contributor; and (iii) to the greatest extent permissible under Section 1.707-4(d), the distribution of the Cash Consideration shall be treated as a distribution
to Contributor by Acquirer under Section 731 of the Code and be treated as a reimbursement of capital expenditures. Unless otherwise required by a change in applicable Law, the Parties agree to file all Tax Returns and otherwise act at all
times in a manner consistent with this intended treatment set forth in this Section 2.5, including disclosing the distribution of the Cash Consideration in accordance with the requirements of Section 1.707-3(c)(2) of the Treasury
Regulations. 
 ARTICLE 3 
 REPRESENTATIONS AND WARRANTIES REGARDING CONTRIBUTOR AND THE COMPANY 

Except as set forth in the Disclosure Schedules, Contributor represents and warrants to Acquirer, as of the date of this Agreement, as
follows: 
 Section 3.1 Organization. 

(a) Contributor is a limited liability company duly formed, validly existing and in good standing under the laws of the State of Delaware
and has all limited liability company power required to carry on its business as now conducted. Contributor is duly qualified to do business in each other jurisdiction where such qualification is necessary, except in those jurisdictions where the
failure to be so duly qualified or licensed would not reasonably be expected to have a material adverse effect on Contributor’s ability to perform its obligations under this Agreement. 

(b) The Company is a limited liability company duly formed, validly existing and in good standing under the laws of the State of Texas
and has all limited liability company power required to carry on its business as now conducted. The Company is duly qualified to do business in each other jurisdiction where such qualification is necessary, except in those jurisdictions where the
failure to be so duly qualified or licensed that would not reasonably be expected to have a Material Adverse Effect. Contributor has made available to Acquirer in the virtual data room true and complete copies of the Organizational Documents of the
Company, as in effect on the date of this Agreement. 

  
 16 

 Section 3.2 Authority; Enforceability. 

(a) Contributor has all requisite limited liability company power and authority to execute and deliver this Agreement and the other
Transaction Documents to which it is a party, to perform its obligations hereunder and thereunder and to consummate the transactions contemplated hereunder and thereunder. The execution, delivery and performance by Contributor of this Agreement and
the other Transaction Documents to which it is a party and the consummation of the transactions contemplated hereby and thereby are within the limited liability company power of Contributor and have been duly authorized by all necessary limited
liability company action on the part of Contributor. 
 (b) This Agreement has been duly and validly executed by Contributor,
and each of the other Transaction Documents will be duly and validly executed by Contributor, and (assuming this Agreement is a valid and binding obligation of Acquirer) this Agreement constitutes, and each of the other Transaction Documents entered
into or to be entered at the Closing by it will constitute when entered into, a valid and binding agreement of Contributor (assuming such Transaction Document is a valid and binding obligation of Acquirer), enforceable against Contributor in
accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, fraudulent transfer, moratorium and similar Laws relating to or affecting creditors’ rights generally and subject, as to enforceability, to
legal principles of general applicability governing the availability of equitable remedies (regardless of whether such enforceability is considered in a proceeding in equity or at law) (collectively, “Creditors’
Rights”). 
 Section 3.3 No Conflicts; Consents and Approvals. 

The execution, delivery and performance by Contributor of this Agreement and the other Transaction Documents to which it is a party and
the consummation of the transactions contemplated hereby and thereby do not and will not: 
 (a) conflict with or result in a
violation or breach of any of the terms, conditions or provisions of the Organizational Documents of Contributor or the Company; 
 (b) except as set forth on Schedule 3.3(b), require any consent or other action by any Person, result in a violation of or result in a breach of or default (or give rise to any right of
termination, cancellation, modification or acceleration or any right or obligation of Company or to a loss of any benefit to which the Company is entitled) under (with or without the giving of notice, the lapse of time, or both) any Material
Contract, except for (i) such consents and approvals the failure of which to obtain or such breaches or defaults the occurrence of which would not materially impact the operations of the Company or (ii) such consents and approvals which
are required as a result of the activities of Acquirer or its Affiliates; or 
 (c) assuming compliance with any applicable
requirements of applicable Antitrust Laws and that all required filings, waivers, approvals, consents, authorizations and notices set forth on Schedule 3.3(c) shall have been made or obtained, (i) conflict with, violate or breach
any term or provision of, in any material respect, any applicable Law with respect to Contributor or the Company or (ii) require any consent or approval of, notice to, or declaration, filing or registration with any Governmental Authority under
any applicable Law, other than such consents, approvals, notices, declarations, filings or registrations (x) which, if not made or 

  
 17 

 
obtained, would not have a material impact on the Company or Contributor’s ability to perform its obligations under this Agreement or (y) required as a result of the business activities
of Acquirer and its Affiliates. 
 Section 3.4 Capitalization; Ownership. 

(a) The Purchased Interests constitute all of the issued and outstanding membership interests of the Company. Contributor is the record
and beneficial owner of the Purchased Interests, free and clear of any Liens other than Liens arising pursuant to (i) this Agreement, (ii) the Organizational Documents of the Company, (iii) the Liens arising under the Scheduled Debt
(which Liens are contemplated to be released pursuant to Section 5.11) or (iv) applicable securities Laws. All of the Purchased Interests have been duly authorized and validly issued, are fully paid and nonassessable and were issued
and sold in accordance with federal and applicable state securities Laws and were not issued in violation of any statutory preemptive rights or any purchase or call options, rights of first refusal, subscription rights, preemptive rights or similar
rights granted under the Organizational Documents of the Company. Except for the rights created pursuant to this Agreement, there are no outstanding options, warrants, convertible securities or other rights, agreements, arrangements or commitments
of any kind relating to the right to subscribe for or purchase Equity Interests in the Company or obligating the Company to issue or sell any Equity Interests in the Company. There are no outstanding contractual obligations of the Company to
repurchase, redeem or otherwise acquire any Equity Interests in the Company or to provide funds to, or make any investment in, any other Person. The Company has never owned and does not presently own any Equity Interests or other securities in any
other Person. 
 (b) There are no outstanding stock appreciation, phantom stock, profit participation or similar rights with
respect to the Company. There are no bonds, debentures, notes or other indebtedness of the Company having the right to vote or consent (or, convertible into, or exchangeable for, securities having the right to vote or consent) on any matters on
which members, parties or other equityholders of the Company may vote. There are no voting trusts, irrevocable proxies or other Contracts or understandings to which the Company is a party or is bound with respect to the voting or consent of any
shares of Equity Interests of the Company. 
 (c) Contributor has the right, authority and power to sell, assign and transfer
the Purchased Interests to Acquirer. At the Closing, Contributor shall transfer, and upon Acquirer’s payment of the Final Purchase Price and registration of the Purchased Interests in the name of Acquirer in the books and records of the
Company, Acquirer shall acquire, good and valid title to the Purchased Interests, free and clear of any Lien other than Liens created by (i) Acquirer or (ii) applicable securities Laws. 

Section 3.5 Financial Statements. 
 (a) Contributor has provided to Acquirer copies of (i) the audited consolidated balance sheets of the Company as of December 31, 2011 and 2010, and the related audited

  
 18 

 
consolidated statements of operations, changes in stockholders’ equity and cash flows of the Company for the years ended December 31, 2011, 2010 and 2009, together with all related
notes, accompanied by the reports thereon of the Company’s independent auditors, and (ii) the unaudited balance sheet of the Company as of February 29, 2012, and the related unaudited consolidated statement of operations, changes in
stockholders’ equity and cash flows of the Company for the two (2) month period then ended (such documents in clauses (i) and (ii) collectively referred to as the “Financial Statements”). The
Financial Statements have been prepared from the books and records of the Company in accordance with GAAP applied on a consistent basis throughout the periods indicated (except as may be indicated in the notes thereto) and fairly present, in all
material respects, the financial position and results of operations of the Company as of the respective dates thereof and for the respective periods indicated therein, in each case except as otherwise noted therein. 

(b) The Company makes and keeps books, records and accounts which, in reasonable detail, accurately and fairly reflect its transactions
and dispositions of its assets. The Company maintains systems of internal accounting controls sufficient to provide reasonable assurances that: (i) transactions are executed in accordance with management’s general or specific
authorization; (ii) transactions are recorded as necessary to permit the preparation of financial statements in conformity with GAAP and to maintain accountability for assets; (iii) access to assets is permitted only in accordance with
management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with the actual levels at reasonable intervals and appropriate action is taken with respect to any differences. 

Section 3.6 Absence of Certain Changes. 

(a) Since the Balance Sheet Date, there have been no changes, developments, events, effects, conditions or occurrences that have had or
would reasonably be expected to have a Material Adverse Effect, and, except as set forth on Schedule 3.6, the Company has not: 
 (i) amended its Organizational Documents; 
 (ii) issued or sold
any of its Equity Interests or any options, warrants, convertible or exchangeable securities, or other rights of any kind with respect to its Equity Interests; 
 (iii) redeemed, repurchased or otherwise acquired any of its Equity Interests; 
 (iv) adopted a plan of complete or partial liquidation, dissolution, recapitalization or other reorganization; 
 (v) made any material change in its method of accounting, other than as required by GAAP or a change in applicable Law; 

  
 19 

 (vi) made any material acquisition of all or any significant part of the
assets, properties, capital stock or business of any other Person, except in the ordinary course of business consistent with past practice; 
 (vii) made or rescinded any election relating to Taxes or settled or compromised any claim, action, suit, litigation, proceeding, arbitration, investigation, audit or controversy relating to Taxes, or
except as may be required by applicable Law, made any change to any of its methods of reporting income or deductions for federal income tax purposes from those employed in the preparation of its most recently filed federal Tax Returns; 

(viii) sold, transferred or disposed of any material assets, except in the ordinary course of business consistent with
past practice; 
 (ix) commenced or settled any material litigation; 

(x) conducted the business of the Company outside of the ordinary course in a manner inconsistent with past practice;

 (xi) taken any action that would be in violation of Section 5.1 if taken after the execution
hereof; or 
 (xii) committed to do any of the foregoing. 

(b) From the Balance Sheet Date through the date of this Agreement, there has not been any damage, destruction or loss, whether or not
covered by insurance, that has not been fully repaired or restored, with respect to the property and assets of the Company having a replacement cost of more than $1,000,000 for any single loss or $5,000,000 for all such losses. 

Section 3.7 No Undisclosed Material Liabilities; Debt. 

(a) There are no liabilities of the Company of any kind (whether accrued or fixed, absolute or contingent, matured or unmatured,
determined or determinable or otherwise), other than: (i) liabilities disclosed, reflected, reserved against or otherwise provided for in the Financial Statements or disclosed in the notes thereto; (ii) liabilities not required under GAAP
to be shown on the Company’s balance sheet included in the financial statements; (iii) liabilities incurred in the ordinary course of business consistent with past practice since the Balance Sheet Date; (iv) other undisclosed
liabilities which individually or in the aggregate, are immaterial; (v) liabilities set forth in Schedule 3.7; and (vi) liabilities permitted to be incurred under Section 5.1 or incurred in connection with the
transactions contemplated by this Agreement. 
 (b) As of the date hereof, the Scheduled Debt constitutes and represents the
entirety of the Indebtedness of the Company. 

  
 20 

 Section 3.8 Material Contracts. 

(a) Schedule 3.8(a) sets forth all of the following Contracts to which the Company is a party or by which it is bound or
subject to as of the date of this Agreement (collectively, the “Material Contracts”): 

(i) any Contracts with customers pursuant to which the Company gathers, processes, treats, fractionates, transports,
stores, sells or purchases oil, natural gas, condensate or natural gas liquids or other liquid or gaseous hydrocarbons or the products therefrom, or provides services related thereto (including any operation, operation servicing or maintenance
Contract), other than, in each case, any such Contracts described in Section 3.8(a)(viii); 
 (ii)
any Contracts in effect as of the date of this Agreement for the construction of gathering or other pipeline systems or processing, fractionation or storage facilities other than any such Contracts requiring aggregate payments of less than
$1,000,000 or which are terminable by the Company on sixty (60) days’ notice or less without payment by the Company of any material penalty; 
 (iii) any Contracts (A) for the purchase or sale of any asset, equipment, supplies, goods or property or provision of any service or (B) that grant a right or option to purchase or sell any
asset or property or receive services other than, in each case, (x) any such Contracts requiring aggregate payments of less than $1,000,000 or (y) any such Contracts described in Section 3.8(a)(i) or
Section 3.8(a)(ii); 
 (iv) any Contracts providing for the lease of any item or items of personal
or real property with annual rental expense under such lease in excess of $50,000 other than any such Contracts which are terminable by the Company on sixty (60) days’ notice or less without payment by the Company of any material penalty;

 (v) any Contracts under which the Company has created, incurred, assumed or guaranteed any outstanding
Indebtedness; 
 (vi) any Contracts between (A) the Company, on the one hand, and any current or former
employee, officer, manager, member or Affiliate of the Company, on the other hand, (B) the Company and any Employee, or (C) the Company and Contributor or any of its Affiliates with respect to any Employee; 

(vii) any collective bargaining Contracts; 

(viii) any outstanding futures, swap, collar, put, call, floor, cap, option, hedging, forward sale or other derivative
Contracts involving natural gas or other commodity sales or trading; 
 (ix) any Contracts (A) that purport
to limit in any respect the freedom of the Company to compete in any line of business or in any geographic area or not to 

  
 21 

 
solicit or hire any person with respect to employment or (B) that purport to limit in any respect the freedom of any other Person to compete with the Company in any line of business or in
any geographical area or not to solicit or hire any person with respect to employment; 
 (x) any partnership,
joint venture, strategic alliance or limited liability company agreements; 
 (xi) except as contemplated by
clauses (i) and (ii) above, any sales, distribution or other similar agreement providing for the sale by any of the Company of materials, supplies, goods, services, equipment or other assets that provides for annual payments
to the Company of $1,000,000 or more; 
 (xii) Contracts relating to the acquisition (by merger, purchase of
stock or assets or otherwise) by the Company of any operating business or material assets or Equity Interests of any other Person; 
 (xiii) any Contract with a term of two (2) years or more and requiring aggregate payments by or to the Company in excess of $1,000,000 or, in any event, any Contract with a term of three
(3) years or more, other than any such Contracts which are terminable by the Company on sixty (60) days’ notice or less without payment by the Company of any material penalty; 

(xiv) any Contract under which the Company has made advances or loans to any other Person; 

(xv) any material management Contract or any material Contract with independent contractors or consultants (or similar
arrangements) that are not cancelable without penalty or further payment and on not more than thirty (30) days’ notice; and 
 (xvi) any other Contract not described in the foregoing clauses (i) through (xv) pursuant to which the Company has future liability in excess of $1,000,000 for any year or
$3,000,000 in the aggregate and that cannot be terminated by the Company on not more than ninety (90) days’ notice or with payment by the Company of a penalty not in excess of $50,000. 

(b) As of the date of this Agreement, each Material Contract required to be disclosed is a valid and binding agreement of the Company and
is enforceable against the Company in accordance with its terms, subject to Creditors’ Rights. Except as set forth on Schedule 3.8(b), the Company is not in material breach or default under the terms of any such Material Contract
nor, to the Knowledge of the Contributor, is any other party to any Material Contract in material breach of or default thereunder and, to the Knowledge of the Contributor, no event has occurred with respect to which the Company has determined that,
with the lapse of time or the giving of notice or both, such event would constitute a material breach of or default under any Material Contract by any party thereto. Except as set forth on Schedule 3.8(b), no party to any of the Material
Contracts has given written notice of any significant dispute with regard to such Material Contract which would reasonably be expected to support a claim for breach or default under such Material Contract, and, to the Knowledge of Contributor, no
such 

  
 22 

 
party has exercised any termination rights under, or indicated intent not to renew, such Material Contract. The Company has made available to Acquirer in the virtual data room prior to the date
of this Agreement a true, complete and correct copy of each Material Contract, including all amendments, exhibits, schedules, appendices and other supplements thereto. 
 Section 3.9 Litigation. 
 (a) Except as set forth on
Schedule 3.9, there are no actions, suits, investigations or proceedings pending or, to the Knowledge of Contributor, threatened in writing against the Company or any of its properties. Except as set forth on Schedule 3.9,
the Company is not subject to any outstanding judgment, order or decree of any Governmental Authority (other than judgments, orders or decrees and requirements of Government Authorities in connection with permitting, interconnection requests, and
similar requirements for project development, in each case in the ordinary course). 
 (b) There is no legal proceeding pending
or, to the Knowledge of Contributor, threatened against Contributor or to which Contributor is otherwise a party relating to this Agreement, the Transaction Documents or the transactions contemplated hereby or thereby. 

Section 3.10 Compliance with Laws; Permits. 

(a) Except for Environmental Laws, which are addressed in Section 3.13 (and not by this Section 3.10), and as set
forth in Schedule 3.10(a), the Company is, and has been since the Balance Sheet Date, in compliance in all material respects with all Laws applicable to its business and operations, and the Company has not received any notice of or been
charged with a material violation of any applicable Laws. To the Knowledge of Contributor, and except for Environmental Laws, which are addressed in Section 3.13 (and not by this Section 3.10), and as set forth on
Schedule 3.10(a), no material investigation, proceeding or review by any Governmental Authority is pending or threatened against the Company with respect to a violation of any applicable Law or suspension, revocation or modification of
any Material Permit. 
 (b) Except for Environmental Permits, which are addressed in Section 3.13 (and not by this
Section 3.10), and as set forth on Schedule 3.10(b), the Company currently holds, and has held, all material Permits that are or were (as applicable) required under applicable Laws for the current and past operation, lease or
ownership of its business, properties and other assets, including material Permits that are or were (as applicable) required for the current stage of those portions of the Company’s systems or facilities that are under construction or have not
yet been constructed (“Material Permits”). (i) The Material Permits associated with the Company’s current operation, lease or ownership of its business, properties and other assets are valid, subsisting and in full
force and effect; (ii) the Company is not in default in any material respect under or in breach or violation in any material respect (and no event has occurred which, with notice or the lapse of time or both, would constitute such default or
such breach or violation) of any term, condition or provision of any Material Permit to which it is a party; and (iii) the Company has not received any written communication that any of the Material Permits are not currently in good standing or
that the Company is in default under or in breach or violation of any Material Permit. 

  
 23 

 (c) Neither the assets nor the business of the Company as currently owned and operated is
subject to regulation under the Federal Power Act; the Natural Gas Act or the Natural Gas Policy Act of 1978, as amended, except the requirements relating to physical purchases and sales of energy commodities, transportation of energy commodities,
and any related hedging activities of derivatives transactions of the Pipeline Posting Requirements under Section 23 of the Natural Gas Act, Order No. 720, FERC Stats. & Regs. 31,283 (2008), Order No. 720-A, 75 FR 5178 (Jan.
21, 2010), FERC Stats. & Regs. 31,302 (2010), Order No. 720-B, 75 FR 44,893 (July 30, 2010), FERC Stats. & Regs. 31,314 (2010), Order No. 720-C and other related anti-market manipulation regulations. The Company is, and
has been at all relevant times, in compliance with Part 195 of Title 49 of the Code of Federal Regulations. 

Section 3.11 Properties. 
 (a) Schedule 3.11(a) sets forth a complete list of all real property and interests in real property owned in fee by the Company (individually, an “Owned Property” and
collectively, the “Owned Properties”). The Company has good and marketable title to all Owned Property and has good and marketable title to or valid rights to use all personal property (whether tangible or intangible) in each
case that is necessary for the Company to conduct its business as it is currently being conducted and currently intended by the Company to be conducted, free and clear of all Liens of any nature whatsoever, except (A) Liens disclosed on
Schedule 3.11(a); (B) Liens disclosed in the Financial Statements or notes thereto; (C) Liens for Taxes, assessments and similar charges that are not yet past due or are being contested in good faith for which the Company has
made adequate reserves; (D) mechanic’s, materialman’s, carrier’s, repairer’s and other similar statutory Liens arising or incurred in the ordinary course of business, that are not yet due and payable, that are being
contested in good faith and for which the Company has made adequate reserves; (E) immaterial defects in title which would not individually or in the aggregate be reasonably expected to materially impact the operations of the Company;
(F) grants to others of Rights-of-Way, surfaces leases, crossing rights and amendments, modifications and releases of Rights-of-Way, easements and surface leases in the ordinary course of the business; and (G) restrictions on the exercise
of the rights under a granting instrument that are set forth therein or in another executed agreement between the parties thereto; which in the cases of clauses (E) and (F), do not, individually or in the aggregate, materially and
adversely impact the ownership, use or operation (as currently being conducted and currently intended by the Company to be conducted) of such assets of the Company (clauses (A) through (F) of this Section 3.11(a)
being referred to collectively as the “Permitted Liens”). 
 (b) All of the Owned Properties and the
improvements, buildings, structures, tanks, fixtures, pipelines, and other tangible assets owned by the Company thereon are, in all material respects, in good operating condition (ordinary wear and tear excepted), and all mechanical and other
systems located thereon are in good operating condition (ordinary wear and tear excepted). To the Knowledge of Contributor, (i) none of the tangible assets of the Company are subject to structural defects, (ii) no condition exists
requiring material repairs, 

  
 24 

 
alterations or corrections and (iii) none of the improvements located on the Owned Properties constitutes a legal non-conforming use or otherwise requires any special dispensation, variance
or special permit under any Laws. The Owned Properties are not subject to any leases, rights of first refusal, options to purchase or rights of occupancy of any Third Party, except pursuant to the agreements set forth on Schedule 3.11(b)
(each, a “Third Party Agreement”). There does not exist any actual or, to the Knowledge of Contributor, threatened or contemplated condemnation or eminent domain proceedings that affect any Owned Property or any part thereof,
and none of the Company or Contributor has received any notice, oral or written, of the intention of any Governmental Authority or other Person to take or use all or any part thereof. 

(c) Except with respect to Rights of Way (as defined below) necessary for those portions of the Company’s systems or facilities that
are under construction and except as set forth on Schedule 3.11(c): (i) each easement, license, right-of-way, Permit, servitude, leasehold estate, instrument creating an interest in real property, and other similar real estate
interest of the Company (each, a “Right-of-Way”) is valid and free and clear of all Liens (other than Permitted Liens), (ii) the Company conducts its businesses in a manner that does not violate in any material respect
any of the Rights-of-Way, (iii) the Company has fulfilled and performed in all material respects all of its obligations with respect to such Rights-of-Way, and (iv) the Company has not received written notice of the occurrence of any
ongoing event or circumstance that allows, or after the giving of notice or the passage of time, or both, would allow limitation, revocation or termination of any Right-of-Way or would result in any impairment of the rights of the Company in and to
any such Rights-of-Way. To the Knowledge of Contributor, all pipelines operated by the Company are subject to enforceable Rights-of-Way, and there are no gaps (including any gap arising as a result of any breach by the Company of the terms of any
Rights-of-Way) in the pipeline systems for which enforceable Rights-of-Way, except those gaps listed on Schedule 3.11(c) and other immaterial gaps. 
 (d) All items of tangible personal property which, individually or in the aggregate, are material to the operation of the business of the Company are in good condition (ordinary wear and tear excepted)
and are suitable for the purposes used. 
 Section 3.12 Intellectual Property. 

(a) No material registrations or applications for registration are included in the Company Intellectual Property Rights other than
Contributor’s Names and Marks. The Company owns, licenses or otherwise has a valid right to use, free and clear of all Liens (other than Permitted Liens), all Intellectual Property Rights reasonably necessary to the conduct of the business of
the Company as currently conducted or as currently intended by the Company to be conducted. 
 (b) Schedule 3.12
sets forth a list of all agreements (excluding licenses for commercially available “off-the-shelf” software with annual fees of less than $100,000) pursuant to which any material Licensed Intellectual Property Right is licensed to the
Company. 

  
 25 

 (c) No Company Intellectual Property Right is subject to any outstanding judgment,
injunction, order or decree restricting the use or licensing thereof by the Company in any material respect. 
 (d) To the
Knowledge of Contributor, the conduct of the Company’s business as currently conducted has not infringed or misappropriated, in any material respect, any Intellectual Property Right of any Third Party. 

(e) The consummation of the transactions contemplated hereby will not result in the loss or impairment of any material right of the
Company to own, use, practice or exploit any Company Intellectual Property Rights or Licensed Intellectual Property Rights. 

Section 3.13 Environmental Matters. 
 (a) Except as to matters that would not be reasonably expected to result in Losses in excess of $250,000 individually or $1,000,000 in the aggregate, or except as set forth on
Schedule 3.13(a): 
 (i) there are no actions, suits, investigations or proceedings pending or, to
the Knowledge of Contributor, threatened, which relate to the operations of the Company or to any real property currently or, to the Knowledge of Contributor, formerly owned, leased, operated or otherwise used by the Company, that allege a violation
of or liability under any Environmental Laws by the Company or allege that the Company is or may be liable under any Environmental Laws, and neither the Company nor Contributor has received any communication alleging that the Company is in violation
of any Environmental Law or is or may be liable under any Environmental Laws; 
 (ii) the Company currently
holds, and has held, all Environmental Permits necessary for its operations as currently conducted, and as conducted in the past, and is, or was, in compliance with, and has not violated, the terms of such Environmental Permits; true and complete
copies of all current Environmental Permits (other than insignificant Environmental Permits) have been made available to Acquirer in the virtual data room; all of such Environmental Permits associated with the Company’s current operations are
valid and in full force and effect; the Company has applied or will apply on a timely basis for the Environmental Permits necessary for the contemplated operation of its business as currently contemplated by the Company; and all Environmental
Permits (other than insignificant Environmental Permits) applied for but not yet obtained have been identified and made available to Acquirer in the virtual data room; 

(iii) the Company has obtained all Environmental Permits for the current stage of construction and the Company has
applied or will apply on a timely basis for the Environmental Permits necessary for the construction and operation of the two (2) gas processing plants at the Fort Beeler facility (Fort Beeler Cryo II and Fort Beeler Cryo III) and two
(2) NGL fractionation plants at the Moundsville facility (Moundsville Frac I and Moundsville Frac II), and any pipelines related to the operation of these facilities with expected operational dates as follows: Moundsville Frac I—March
31, 2012; 

  
 26 

 
Moundsville Frac II—October 31, 2012; Fort Beeler Cryo II—March 2012; and Fort Beeler Cryo III—August 31, 2012; true and complete copies of the following documents have been
made available to Acquirer in the virtual data room: (A) all Environmental Permits for the current stage of construction, (B) all applications for Environmental Permits that have been prepared or submitted by the Company, the date on which
each was submitted to a Governmental Authority, and any further actions required by such Governmental Authority, and (C) all Environmental Permits (other than insignificant Environmental Permits) that are required for planned operation but for
which applications have not yet been submitted; 
 (iv) there has been no Release of any Hazardous Materials by
the Company or, any other Person at, on, under or about any real property currently or, to the Knowledge of Contributor, formerly owned, leased, operated or used by the Company or, by any other Person during the period any such property was owned,
leased, operated or used by the Company in each case in a manner that could reasonably be expected to require remedial action under Environmental Laws or that could reasonably be expected to give rise to the Company incurring any liability under
Environmental Laws; 
 (v) to the Knowledge of Contributor, there are no facts, circumstances or conditions
relating to the operation of the Company, or to any real property currently or formerly owned, leased, operated or used by the Company, that could reasonably be expected to result in the Company incurring any liability or obligation under any
applicable Environmental Law, or that currently requires any capital expenditure not included in Section 5.1(b); 
 (vi) the execution, delivery and performance by Contributor of this Agreement and each of the other Transaction Documents to which it is a party and the consummation of the transactions contemplated
hereby and thereby do not require any notification or filing by the Company or Contributor with any Governmental Authority under any Environmental Law; 
 (vii) Contributor has made available to Acquirer in the virtual data room true and complete copies of all environmental studies, assessments, reports, analyses, results of investigations, audits and other
similar documents relating to environmental matters that are in the custody and control of the Company that have been performed or exist with respect to the Company, the operation of the Company’s business, or any real property currently or
formerly owned, leased, operated or used by the Company; 
 (viii) Contributor is not currently subject or party
to any Contract, order, judgment or decree by or with any Governmental Authority or Third Party, pursuant to which Contributor has assumed, incurred or suffered any liability or obligation under any Environmental Laws (other than obligations under
customary indemnity provisions contained in service contracts entered into in the ordinary course of business); and 
 (ix) Contributor has not received written notice of any potential liability under any Environmental Laws for the transport and disposal of any Hazardous Substance to any site; and to the Knowledge of
Contributor, the Company is not subject 

  
 27 

 
to any liability or obligation relating to the past or present use, management, handling, transport, treatment, generation, storage or Release of any Hazardous Materials, including the treatment,
storage or disposal, or arrangement for treatment, storage or disposal, of a Hazardous Substance at any location other than the real property owned or leased by the Company. 
 (b) Contributor has provided to Acquirer a true, correct and complete copy of the Olin Purchase Agreement and the Environmental Covenant, and: 

(i) there has been no default or breach by Contributor or the Company of the Olin Purchase Agreement, and there has been
no default or breach by the Company of the Environmental Covenant, in each case that would adversely affect the Olin Environmental Obligations or Contributor’s Bona Fide Prospective Purchaser Protection from the EPA; 

(ii) to the Knowledge of Contributor, there has been no default or breach by Olin Corporation of the Olin Environmental
Obligations, and no default or breach by Olin Corporation of other provisions of the Olin Purchase Agreement that would adversely affect the Olin Environmental Obligations; 

(iii) to the Knowledge of Contributor, the Olin Environmental Obligations and other relevant provisions of the Olin
Agreement are valid and binding obligations of Olin Corporation and are enforceable by the Company against Olin Corporation; and 
 (iv) to the Knowledge of Contributor, neither the execution and delivery of this Agreement nor the consummation of the transactions contemplated by this Agreement will adversely impair the Company’s
ability to enforce the Olin Environmental Obligations and obtain the full benefit of the same. 
 (c) Except as set forth in
this Section 3.13, no representations or warranties are being made (nor shall be deemed to have been made) with respect to matters arising under or relating to Environmental Laws or other environmental matters. 

Section 3.14 Employees. 
 (a) The Company is not, and has not been since its inception, a party to any collective bargaining agreement or other similar agreement with any labor union or organization and, to the Knowledge of
Contributor, there has been no union organizing activity with respect to employees since the Balance Sheet Date. 
 (b) The
Company has no employees. Since its inception, the Company has not had any employees, other than employees who are or were employed by both the Company and the Co-Employer pursuant to an agreement between the Co-Employer and the Company (the
“Client Service Agreement”), a true and complete copy of which, with all amendments, has been provided to Acquirer. The Client Service Agreement has been terminated and no longer has any

  
 28 

 
force or effect. The virtual data room contains a complete and correct list, as of the date of this Agreement, of all employees of Contributor or its Affiliates (including the Company) who
provide substantial services to the Company and/or whose costs are charged primarily to the Company, including the Covered Employees, as well as the title/position, work location, work status, most current base salary and annual bonus amount, years
of service with Contributor and its Affiliates (including the Company), and any other material compensation for each of the Covered Employees. 
 (c) Except as set forth on Schedule 3.14(c) or as otherwise provided in this Agreement, none of the Company, Contributor or any of their respective Affiliates is a party or subject to any
Contract, nor is any of them bound by any covenant, rule or policy of, with or to any party (including the Co-Employer), that would limit the right of the Company, Acquirer, Contributor or any of their respective Affiliates to terminate the
employment or change the benefits or other conditions of employment of any Covered Employee or other Person or give rise to any liability as a result thereof as to the Company, Acquirer or any of its Affiliates. 

Section 3.15 Benefit Plans. 
 (a) Schedule 3.15 sets forth a complete and correct list of each Employee Plan. Each Employee Plan (and each related trust, insurance contract or fund) complies in all material respects in
form and in operation with the applicable requirements of ERISA, the Code and all other applicable Laws, and has been administered in all material respects in compliance with its terms. All of the Employee Plans are sponsored by Contributor. The
Company is not a sponsor of, or a party to, any of the Employee Plans. 
 (b) No Employee Plan is subject to the requirements of
Title IV of ERISA. No Employee Plan is a “multiemployer plan” (as defined in Section 4001(a)(3) of ERISA) and neither the Company nor any of its ERISA Affiliates has at any time sponsored or contributed to, or has or had any liability
or obligation in respect of, any multiemployer plan, including withdrawal liability. 
 (c) The Company has not incurred, and
none of the Company, Acquirer or any Affiliate of Acquirer will incur, as a result of or in connection with the transactions contemplated by this Agreement or by the other Transaction Documents any current or projected liability under any Employee
Plan. 
 (d) None of the Company, Acquirer or any Affiliate of Acquirer will incur any liability, including any contingent
liability, to any Employee or any current, former or retired employee, director, member manager or independent contractor of the Company or any of its Affiliates as a result or consequence of the transactions contemplated by this Agreement or by the
other Transaction Documents. 

  
 29 

 Section 3.16 Taxes. 

(a) The Company is, and since its inception has been, an entity that is disregarded for purposes of U.S. federal and applicable state
income Tax purposes and it has not made any filing with any Governmental Authority, including Form 8832 with the Internal Revenue Service, to be treated as an association taxable as a corporation for income Tax purposes. 

(b) Except as set forth on Schedule 3.16, the Company has timely filed (or has had timely filed on its behalf) with the
appropriate Governmental Authorities all material Tax Returns required to be filed by it (taking into account for this purpose any extensions), and such Tax Returns were true, complete and accurate in all material respects when filed. 

(c) Except as set forth on Schedule 3.16, the Company has timely paid, withheld or collected (or has had timely paid,
withheld or collected on its behalf) all material Taxes required to have been paid, withheld or collected by, or with respect to, the Company and, to the extent required when due, have timely remitted such withheld or collected Taxes to the proper
Governmental Authority. 
 (d) Except as set forth on Schedule 3.16, as of the date of this Agreement, there are
(i) no asserted or threatened deficiencies or assessments of material Taxes from any Governmental Authority with respect to the Company, (ii) no ongoing audits or examinations of any of the Tax Returns relating to the Company and no such
audit or examination has been threatened in writing and (iii) no outstanding requests, agreements, consents or waivers to extend the statutory period of limitations applicable to the assessment of any material Taxes of the Company. 

(e) There are no Tax liens on the assets of the Company other than Permitted Liens. 

(f) The Company is not a party to any agreement or arrangement providing for the allocation, indemnification or sharing of Taxes.

 (g) Except as set forth on Schedule 3.16, the Company (i) has never been a member of an affiliated group
within the meaning of Section 1504(a) of the Code (or any similar group defined under a similar provision of state, local or foreign Law), (ii) is not subject to several liability for Taxes of any Person under Treasury Regulation
Section 1.1502-6 (or any similar provision of state, local or foreign Law), and (iii) has not agreed to (or is not required) to make any adjustment pursuant to Section 481 of the Code or any similar provision of state, local or
foreign Law and, to the Knowledge of Contributor, no Governmental Authority has proposed any such adjustment. 
 (h) There are
no written claims by any Governmental Authority in a jurisdiction where the Company does not file Tax Returns that the Company is or may be subject to taxation by that jurisdiction. 

  
 30 

 (i) Contributor is not a “foreign person” as defined in Section 1445 of the
Code. 
 Section 3.17 Insurance.  

Schedule 3.17 contains (a) a true and complete list of all material insurance policies (all of which are in full force
and effect) that as of the date of this Agreement cover the Company and its assets, properties, officers and directors and (b) a true and complete list of each claim made since the applicable acquisition or formation date under any such
insurance policy, including a brief description of the claim and its resolution. As of the date of this Agreement, there is no material claim pending under any such policies as to which coverage has been denied by the insurer other than customary
indications as to reservation of rights by insurers, and the Company has not received written notice of cancellation of, premium increase with respect to, or alteration of coverage under, any such insurance policies. All premiums due on such
insurance policies have either been paid or, if due and payable prior to the Closing, will be paid prior to the Closing in accordance with the payment terms of each insurance policy. Except as specifically noted on Schedule 3.17, all
such policies are held by Contributor and its Affiliates (other than the Company), and such policies will not be transferred to, or available to, the Company or to the assets and properties owned by the Company following the Closing. 

Section 3.18 Brokers’ Fees. 
 Except for Barclays Capital Inc. and Citigroup Global Markets, the fees of which will be paid by Contributor pursuant to a separate agreement, there is no investment banker, broker, finder or other
intermediary that has been retained by or is authorized to act on behalf of the Company that might be entitled to any fee or commission in connection with the transactions contemplated by this Agreement where such fee or commission would be payable
by Acquirer or any of its Affiliates (including the Company, after the Closing). 
 Section 3.19 Sufficiency
of Assets. 
 Except as set forth in Schedule 3.19, the tangible and intangible assets owned or leased by
the Company (excluding Rights-of-Way which are covered only by Section 3.11) constitute all of the material assets used in or held for use in the business of the Company and are sufficient, in all material respects, for Acquirer to
conduct such business, as conducted as of the date hereof. 
 Section 3.20 Related Party Transactions.

 Except as set forth in Schedule 3.20, no employee, officer, director, stockholder, partner or member of the
Company, any member of his or her immediate family or any Affiliate of the foregoing (collectively, the “Related Persons”) (i) owes any amount to the Company nor does the Company owe any amount to, or has the Company
committed to make any loan or extend or guarantee credit to or for the benefit of, any Related Person, (ii) is involved in any business arrangement or other relationship with the Company (whether written or oral), (iii) owns any property
or right, tangible or intangible, that is used by the Company or (iv) has any claim or cause of action against the Company. 

  
 31 

 Section 3.21 Banks; Power of Attorney.  

Schedule 3.21 contains a complete and correct list of the names and locations of all banks in which Company has accounts or
safe deposit boxes and the names of all persons authorized to draw thereon or to have access thereto. Except as set forth in Schedule 3.21, no person holds a power of attorney to act on behalf of the Company. 

Section 3.22 Corporate Records. 
 The minute books of the Company previously made available to Acquirer in the virtual data room contain true, correct and complete records of all meetings and accurately reflect all other action of the
members, partners, stockholders and board of directors (including committees thereof), as applicable, of the Company. The stock transfer ledgers of the Company previously made available to Acquirer in the virtual data room are true, correct and
complete. All stock transfer taxes levied, if any, or payable with respect to all transfers of equity of the Company prior to the date hereof have been paid and appropriate transfer tax stamps affixed. 

Section 3.23 Investment Representations. 

Contributor is an investor experienced (or owned or managed by Persons experienced) in evaluating investments and has the knowledge,
experience and resources to enable it to evaluate and to bear the risks of the investment represented by the Equity Consideration. The Equity Consideration is being acquired by Contributor for its own account for the purpose of investment and not
with a view to distribution in violation of the Securities Act or any applicable state securities or blue sky laws. Contributor is an accredited investor as defined in Rule 501(a) of Regulation D promulgated under the Securities Act.
Contributor understands that the Equity Consideration has not been, and will not be (other than as expressly set forth in the Registration Rights Agreement), registered under the Securities Act, by reason of a specific exemption from the
registration provisions of the Securities Act which depends upon, among other things, the bona fide nature of the investment intent and the accuracy of Contributor’s representations as expressed herein. Contributor acknowledges that the Equity
Consideration constitutes “restricted securities” under applicable U.S. federal and state securities Laws and that, pursuant to these Laws, Contributor must hold the Equity Consideration indefinitely unless they are registered with the SEC
and qualified by state Governmental Authority, or an exemption from such registration and qualification requirements is available. Contributor further acknowledges that if an exemption from registration or qualification is available, it may be
conditioned on various requirements including the time and manner of sale, the holding period for the Equity Consideration, and on requirements relating to Acquirer which are outside of Acquirer’s control, and which Acquirer may not be able to
satisfy. Contributor understands that the Equity Consideration and any securities issued in respect of or exchange therefor, shall bear one or all of the following legends: (a) a legend describing the restrictions relating to the Equity
Consideration contained in this Agreement; (b) the legends contemplated by the Registration Rights Agreement; and (c) any legend required by the securities Laws of any state to the extent such Laws are applicable to the Equity
Consideration represented by the certificate so legended; provided that, each such legend shall be removed (i) at such time as such restrictions are no longer applicable, which removal shall be completed within three (3) Business
Days after the request of the holder of the Equity Consideration, and (ii) with respect to the restriction described in clause (c) above, upon delivery of a customary opinion of counsel to such holder, which opinion is reasonably
satisfactory in form and substance to Acquirer and its counsel, that the 

  
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restriction referenced in such legend is no longer required in order to ensure compliance with applicable securities Laws, which removal shall be completed within three (3) Business Days
after delivery of such opinion of counsel that is so reasonably satisfactory. 
 Section 3.24 Investigation;
No Other Representations. 
 (a) Contributor acknowledges and agrees that the representations and warranties of Acquirer
set forth in the Transaction Documents constitute the sole and exclusive representations and warranties of Acquirer in connection with the transactions contemplated hereby. There are no representations, warranties, covenants, understandings or
agreements of Acquirer regarding Acquirer or the Equity Consideration other than those set forth in the Transaction Documents. Except for the representations and warranties of Acquirer expressly set forth in the Transaction Documents, Contributor
disclaims reliance on any representations or warranties, either express or implied, by Acquirer, and Contributor acknowledges and agrees that no material or information provided by or communications made by Acquirer or information provided during
due diligence (including information available on the SEC website) will cause or create any warranty, express or implied, as to the liabilities, operations, title, condition, value or quality of the properties or the prospects (financial or
otherwise), risks and other incidents of ownership of the Equity Consideration that is not expressly set forth in the Transaction Documents; provided that, neither the conditions set forth in Section 7.3 nor the right to
indemnification, payment, reimbursement or other remedy based upon any the representations, warranties, covenants, agreements or other obligations of Acquirer herein shall be affected by any investigation conducted or any knowledge acquired by
Contributor at any time, whether before or after the execution and delivery of this Agreement or the Closing Date, with respect to the accuracy or inaccuracy of, or compliance or non-compliance with, such representation, warranty, covenant,
agreement or other obligation. Contributor has conducted its own independent review and analysis of the Equity Consideration and the businesses, operations, assets, liabilities, results of operations, financial conditions, technologies and prospects
of Acquirer. CONTRIBUTOR FURTHER ACKNOWLEDGES AND AGREES THAT THE REPRESENTATIONS AND WARRANTIES OF ACQUIRER SET FORTH IN THIS AGREEMENT TERMINATE AS SET FORTH IN SECTION 9.1 OR UPON THE TERMINATION OF THIS AGREEMENT PURSUANT TO SECTION
8.1, AND THAT FOLLOWING SUCH TERMINATION OF THE REPRESENTATIONS AND WARRANTIES, CONTRIBUTOR SHALL HAVE NO RECOURSE WITH RESPECT TO ANY BREACH OF SUCH REPRESENTATIONS AND WARRANTIES, EXCEPT AS PROVIDED IN SECTION 8.2. 

(b) SUBJECT TO AND WITHOUT IN ANY WAY RESTRICTING OR LIMITING THE REPRESENTATIONS AND WARRANTIES OF CONTRIBUTOR EXPRESSLY SET FORTH IN
THIS AGREEMENT OR IN ANY OTHER TRANSACTION DOCUMENT, (i) CONTRIBUTOR EXPRESSLY DISCLAIMS ANY OTHER REPRESENTATIONS OR WARRANTIES OF ANY KIND OR NATURE, EXPRESS OR IMPLIED, AS TO THE LIABILITIES, OPERATIONS, TITLE, CONDITION, VALUE OR
QUALITY OF THE ASSETS OR PROPERTIES OF THE COMPANY OR THE PROSPECTS (FINANCIAL AND OTHERWISE), RISKS AND OTHER INCIDENTS OF OWNERSHIP OF 

  
 33 

 
THE COMPANY AND ITS ASSETS AND PROPERTIES, AND (ii) CONTRIBUTOR SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY, USAGE, OR SUITABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE WITH RESPECT TO THE ASSETS OR PROPERTIES OF THE COMPANY, OR ANY PART THEREOF, OR AS TO THE WORKMANSHIP THEREOF, OR THE ABSENCE OF ANY DEFECTS THEREIN, WHETHER LATENT OR PATENT. NOTHING IN SECTION 4.12(a) OR THE FOREGOING
SENTENCE, SHALL BE CONSTRUED OR INTERPRETED TO RESTRICT, LIMIT, DIMINISH OR OTHERWISE ADVERSELY AFFECT ACQUIRER’S RIGHT TO CLAIM BREACH OF ANY REPRESENTATION OR WARRANTY OF CONTRIBUTOR EXPRESSLY SET FORTH IN THIS AGREEMENT OR IN ANY OTHER
TRANSACTION DOCUMENT AND TO SEEK REMEDY FOR SUCH BREACH PURSUANT TO THE TERMS OF THIS AGREEMENT OR SUCH TRANSACTION DOCUMENT, AS APPLICABLE. 
 (c) Nothing contained in this Section 3.24 or elsewhere in this Agreement shall limit, restrict or otherwise impair Contributor’s rights as a unitholder in Acquirer after the Closing,
including rights arising out of any inaccuracies in the applicable registration statements, proxy statements, and other statements, reports, schedules, forms and other documents filed by Acquirer with the SEC, including all amendments thereto.

 ARTICLE 4 
 REPRESENTATIONS AND WARRANTIES OF ACQUIRER 
 Acquirer represents and
warrants to Contributor, as of the date of this Agreement, as follows: 
 Section 4.1 Organization.

 Acquirer is a limited partnership duly formed, validly existing and in good standing under the laws of the State of Delaware
and has all limited partnership power required to carry on its business as now conducted. Acquirer is duly qualified to do business in each other jurisdiction where such qualification is necessary, except in those jurisdictions where the failure to
be so duly qualified or licensed would not reasonably be expected to have a material adverse effect on Acquirer’s ability to perform its obligations under this Agreement. 
 Section 4.2 Authority; Enforceability. 
 (a) Acquirer
has all requisite limited partnership power and authority to execute and deliver this Agreement and the other Transaction Documents to which it is a party, to perform its obligations hereunder and thereunder and to consummate the transactions
contemplated hereunder and thereunder. The execution, delivery and performance by Acquirer of this Agreement and the other Transaction Documents to which it is a party and the consummation of the transactions contemplated hereby and thereby are
within the limited partnership power of Acquirer and have been duly authorized by all necessary limited partnership action on the part of Acquirer. 

  
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 (b) This Agreement has been duly and validly executed by Acquirer, and each of the other
Transaction Documents will be duly and validly executed by Acquirer, and (assuming this Agreement is a valid and binding obligation of Contributor) this Agreement constitutes, and each of the other Transaction Documents entered into or to be entered
at the Closing by it will constitute when entered into, a valid and binding agreement of Acquirer (assuming such Transaction Document is a valid and binding obligation of Contributor), enforceable against Acquirer in accordance with its terms,
except as such enforceability may be limited by Creditors’ Rights. 
 Section 4.3 No Conflicts; Consents
and Approvals. 
 The execution, delivery and performance by Acquirer of this Agreement and the other Transaction
Documents to which it is a party and the consummation of the transactions contemplated hereby and thereby do not and will not: 

(a) conflict with or result in a violation or breach of any of the terms, conditions or provisions of the Organizational Documents of
Acquirer; 
 (b) result in violation of or result in a breach of or default (or give rise to any right of termination,
cancellation, modification or acceleration or any right or obligation of Acquirer or to a loss of any benefit to which Acquirer is entitled) under (with or without the giving of notice, the lapse of time, or both) any Contract to which Acquirer is a
party, except for such breaches or defaults the occurrence of which would not reasonably be expected to have a material adverse effect on Acquirer’s ability to perform its obligations under this Agreement; or 

(c) assuming compliance with any applicable filing requirements of applicable Antitrust Laws, (i) conflict with, violate or breach
any term or provision of, in any material respect, any Law applicable to Acquirer or (ii) require any consent or approval of, notice to, or declaration, filing or registration with any Governmental Authority under any applicable Law, other than
such consents, approvals, notices, declarations, filings or registrations which, if not made or obtained, would not have a material impact on Acquirer’s ability to perform its obligations under this Agreement. 

Section 4.4 Investment Representations. 

Acquirer is an investor experienced (or owned or managed by Persons experienced) in evaluating investments and has the knowledge,
experience and resources to enable it to evaluate and to bear the risks of the investment represented by the Purchased Interests. Acquirer understands that the sale of the Purchased Interests under this Agreement will not be registered or qualified
under the Securities Act or any state securities or blue sky laws. The Purchased Interests are being acquired by Acquirer for its own account for the purpose of investment and not with a view to distribution in violation of the Securities Act or any
applicable state securities or blue sky laws. Acquirer will refrain from transferring or otherwise disposing of the Purchased Interests in such manner as to cause Contributor to be in violation of the registration requirements of the Securities Act
or applicable state securities or blue sky laws. Acquirer understands that the Purchased Interests have not been, and will not be, registered under the Securities Act, by reason of a specific exemption from the registration provisions of the

  
 35 

 
Securities Act which depends upon, among other things, the bona fide nature of the investment intent and the accuracy of Acquirer’s representations as expressed herein. Acquirer acknowledges
that the Purchased Interests constitute “restricted securities” under applicable U.S. federal and state securities Laws and that, pursuant to these Laws, Acquirer must hold the Purchased Interests indefinitely unless they are registered
with the SEC and qualified by state Governmental Authority, or an exemption from such registration and qualification requirements is available. Acquirer further acknowledges that if an exemption from registration or qualification is available, it
may be conditioned on various requirements including the time and manner of sale, the holding period for the Purchased Interests, and on requirements relating to Contributor which are outside of Contributor’s control, and which Contributor may
not be able to satisfy. 
 Section 4.5 Litigation. 

There are no actions, suits, investigations or proceedings pending or, to the Knowledge of Acquirer, threatened in writing against
Acquirer, nor are there any outstanding judgments, orders or decrees of any Governmental Authority that affect or bind Acquirer, that would reasonably be expected to result in the issuance of a judgment, order or decree restraining, enjoining or
otherwise prohibiting or making illegal the purchase by Acquirer of the Purchased Interests under this Agreement or the performance by Acquirer of its obligations under this Agreement. 

Section 4.6 Financing. 
 Acquirer has, or will have on the Closing Date, sufficient cash, available lines of credit or other sources of immediately available funds to enable it to consummate the Closing and make all payments
required to be made pursuant to the terms of this Agreement and other Transaction Documents. Acquirer acknowledges and agrees that notwithstanding anything to the contrary contained herein, Acquirer’s obligation to consummate the transactions
contemplated by this Agreement is not subject to any financing contingency or condition. 
 Section 4.7
Foreign Person. 
 Acquirer is not a foreign person for purposes of Section 721 of Title VII of the
defense Production Act of 1950, as amended by FINSA and otherwise (codified at 50 U.S.C. App. 2170) and regulations thereto, codified at 31 C.F.R. Part 800, et. seq.). 
 Section 4.8 Brokers’ Fees. 
 There is no investment
banker, broker, finder or other intermediary that has been retained by or is authorized to act on behalf of Acquirer who might be entitled to any fee or commission in connection with the transactions contemplated by this Agreement where such fee or
commission would be payable by Contributor or any of its Affiliates. 

  
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 Section 4.9 Capitalization. 

(a) As of February 23, 2012, the issued and outstanding limited partnership interests of Acquirer consist of the following:
305,008,540 common units. All of the outstanding limited partnership interests of Acquirer have been duly authorized and validly issued, and are fully paid (to the extent required under the Organizational Documents of Acquirer) and non-assessable.
The Equity Consideration, when issued and delivered to Contributor pursuant to the terms of this Agreement, will be duly authorized, validly issued, fully paid and non-assessable. 

(b) Except as expressly set forth in this Agreement or the Registration Rights Agreement: (i) none of the Equity Consideration is
entitled or subject to any preemptive right, right of repurchase or forfeiture, right of participation, right of maintenance or any similar right; (ii) none of the Equity Consideration is subject to any right of first refusal; and
(iii) there is no Contract relating to the voting or registration of, or restricting any Person from purchasing, selling, pledging or otherwise disposing of (or from granting any option or similar right with respect to), any Equity
Consideration. 
 (c) Except as disclosed in the Acquirer SEC Documents (as defined below) or any equity awards to be granted
subsequent to the date hereof that are consistent with the past practices of Acquirer, there is no: (i) outstanding subscription, option, call, warrant or right (whether or not currently exercisable) to acquire any common units of Acquirer; or
(ii) outstanding security, instrument or obligation that is or may become convertible into or exchangeable for any common units of Acquirer or any other Equity Interests of Acquirer. 

Section 4.10 Organizational Documents. 

True, correct and complete copies of the Organizational Documents of Acquirer as in effect on the date hereof are available on the
SEC’s website or have otherwise been provided to Contributor prior to the date hereof, including any and all documents setting forth the terms of, restrictions on or otherwise affecting the Equity Consideration. 

Section 4.11 SEC Filings; Controls; Financial Statements. 

(a) Accurate and complete copies of all registration statements, proxy statements, and other statements, reports, schedules, forms and
other documents filed by Acquirer with the SEC, including all amendments thereto, since January 1, 2011 (collectively, the “Acquirer SEC Documents”) are available on the SEC’s website. All statements, reports,
schedules, forms and other documents required to have been filed by Acquirer (as applicable) with the SEC since January 1, 2011 have been so filed on a timely basis. As of the time it was filed with the SEC (or, if amended or superseded by a
filing prior to the date of this Agreement, then on the date of such filing): (i) each of the Acquirer SEC Documents complied as to form in all material respects with the applicable requirements of the Securities Act or the Exchange Act (as the
case may be); and (ii) none of the Acquirer SEC Documents contained any untrue 

  
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statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which
they were made, not misleading. 
 (b) Acquirer maintains disclosure controls and procedures required by Rule 13a-15 or
15d-15 under the Exchange Act. Such disclosure controls and procedures are designed to ensure that all material information is made known to members of senior management during the periods in which reports to be filed with the SEC are being
prepared. Acquirer is in material compliance with the applicable listing requirements of the New York Stock Exchange. Acquirer has not, since January 1, 2011, received any notice asserting any non-compliance with the listing requirements of the
New York Stock Exchange. 
 (c) The financial statements (including any related notes) contained or incorporated by reference in
the Acquirer SEC Documents: (i) complied as to form in all material respects with the published rules and regulations of the SEC applicable thereto; (ii) were prepared in accordance with GAAP applied on a consistent basis throughout the
periods covered (except as may be indicated in the notes to such financial statements or, in the case of unaudited financial statements, as permitted by Form 10-Q, Form 8-K or any successor form under the Exchange Act, and except that the unaudited
financial statements may not contain footnotes and are subject to normal and recurring year-end adjustments); and (iii) fairly present, in all material respects, the consolidated financial position of Acquirer and each of the consolidated
subsidiaries as of the respective dates thereof and the consolidated results of operations and cash flows of Acquirer and each of the consolidated subsidiaries for the periods covered thereby. 

Section 4.12 Investigation; No Other Representations. 

(a) Acquirer acknowledges and agrees that the representations and warranties of Contributor set forth in the Transaction Documents
constitute the sole and exclusive representations and warranties of Contributor in connection with the transactions contemplated hereby. There are no representations, warranties, covenants, understandings or agreements of Contributor regarding the
Company other than those set forth in the Transaction Documents. Except for the representations and warranties of Contributor expressly set forth in the Transaction Documents, Acquirer disclaims reliance on any representations or warranties, either
express or implied, by Contributor, and Acquirer acknowledges and agrees that no material or information provided by or communications made by Contributor, the Company or any broker, investment banker or information provided during due diligence
(including information in any electronic data room or in response to any information request provided by Acquirer) will cause or create any warranty, express or implied, as to the liabilities, operations, title, condition, value or quality of the
properties or the prospects (financial or otherwise), risks and other incidents of ownership of the Company and the properties of the Company that is not expressly set forth in the Transaction Documents; provided that, neither the conditions
set forth in Section 7.2 nor the right to indemnification, payment, reimbursement or other remedy based upon any the representations, warranties, covenants, agreements or other obligations of Contributor herein shall be affected by any
investigation conducted or any knowledge acquired by Acquirer at any time, whether before or after the execution and delivery of this Agreement or the Closing Date, 

  
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with respect to the accuracy or inaccuracy of, or compliance or non-compliance with, such representation, warranty, covenant, agreement or other obligation. Acquirer has conducted its own
independent review and analysis of the business, operations, assets, liabilities, results of operations, financial condition, technology and prospects of the Company and acknowledges that Acquirer has been provided adequate access to personnel,
properties, premises and records of the Company for such purpose. ACQUIRER FURTHER ACKNOWLEDGES AND AGREES THAT THE REPRESENTATIONS AND WARRANTIES OF CONTRIBUTOR SET FORTH IN THIS AGREEMENT TERMINATE AS SET FORTH IN SECTION 9.1 OR UPON THE
TERMINATION OF THIS AGREEMENT PURSUANT TO SECTION 8.1, AND THAT FOLLOWING SUCH TERMINATION OF THE REPRESENTATIONS AND WARRANTIES, ACQUIRER SHALL HAVE NO RECOURSE WITH RESPECT TO ANY BREACH OF SUCH REPRESENTATIONS AND WARRANTIES, EXCEPT AS
PROVIDED IN SECTION 8.2. 
 (b) SUBJECT TO AND WITHOUT IN ANY WAY RESTRICTING OR LIMITING THE REPRESENTATIONS AND
WARRANTIES OF ACQUIRER EXPRESSLY SET FORTH IN THIS AGREEMENT OR IN ANY OTHER TRANSACTION DOCUMENT, (i) ACQUIRER EXPRESSLY DISCLAIMS ANY OTHER REPRESENTATIONS OR WARRANTIES OF ANY KIND OR NATURE, EXPRESS OR IMPLIED, AS TO THE LIABILITIES,
OPERATIONS, TITLE, CONDITION, VALUE OR QUALITY OF THE ASSETS OR PROPERTIES OF ACQUIRER OR THE PROSPECTS (FINANCIAL AND OTHERWISE), RISKS AND OTHER INCIDENTS OF OWNERSHIP OF ACQUIRER AND ITS ASSETS AND PROPERTIES, AND (ii) ACQUIRER SPECIFICALLY
DISCLAIMS ANY REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY, USAGE, OR SUITABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WITH RESPECT TO THE ASSETS OR PROPERTIES OF ACQUIRER, OR ANY PART THEREOF, OR AS TO THE WORKMANSHIP THEREOF, OR THE ABSENCE
OF ANY DEFECTS THEREIN, WHETHER LATENT OR PATENT. NOTHING IN SECTION 3.24(a) OR THE FOREGOING SENTENCE, SHALL BE CONSTRUED OR INTERPRETED TO RESTRICT, LIMIT, DIMINISH OR OTHERWISE ADVERSELY AFFECT CONTRIBUTOR’S RIGHT TO CLAIM BREACH
OF ANY REPRESENTATION OR WARRANTY OF ACQUIRER EXPRESSLY SET FORTH IN THIS AGREEMENT OR IN ANY OTHER TRANSACTION DOCUMENT AND TO SEEK REMEDY FOR SUCH BREACH PURSUANT TO THE TERMS OF THIS AGREEMENT OR SUCH TRANSACTION DOCUMENT, AS APPLICABLE.

 ARTICLE 5 
 COVENANTS 
 Section 5.1 Conduct and Operations.

 (a) From the date of this Agreement until the Closing Date, except as (i) disclosed on Schedule 5.1(a),
(ii) contemplated by this Agreement, (iii) required by applicable Law or (iv) consented to by Acquirer (such consent not to be unreasonably withheld, conditioned or delayed) Contributor shall cause the Company to: (A) conduct its
businesses in the ordinary course consistent with past practice, in all material respects; (B) use its commercially reasonable 

  
 39 

 
efforts to preserve intact its business organizations and material relationships with Third Parties and to keep available the services of its present officers and key employees; and
(C) continue to maintain its assets and properties in the ordinary course consistent with past practice. 
 (b) Without
limiting the generality of Section 5.1(a), from the date of this Agreement until the Closing Date, except as (i) disclosed in Schedule 5.1(b), (ii) required by applicable Law, (iii) consented to by Acquirer in
Acquirer’s sole discretion or (iv) contemplated by this Agreement, Contributor shall cause the Company not to: 
 (i) adopt any change in any of its Organizational Documents; 

(ii) (A) transfer, issue, sell, pledge, encumber or dispose of any Equity Interests (including any securities convertible
into or exercisable or exchangeable for such Equity Interests) of the Company, (B) grant any options, warrants, calls or other rights to purchase or otherwise acquire any Equity Interests of the Company, (C) declare, set aside, make or pay
any non-cash dividend or other distribution in respect of any Equity Interests (including any securities convertible into or exercisable or exchange for such Equity Interests) of the Company, or (D) repurchase, redeem or otherwise acquire any
Equity Interests (including any securities convertible into or exercisable or exchange for such Equity Interests) of the Company; 
 (iii) split, combine or reclassify any of its Equity Interests; 

(iv) make any material acquisition (by merger, consolidation, acquisition of stock or assets or otherwise) of the assets,
properties, capital stock or business of another Person, other than (A) in the ordinary course of business of the Company consistent with past practice or (B) acquisitions with a purchase price that does not exceed $500,000 individually or
$2,000,000 in the aggregate; 
 (v) sell, transfer or otherwise dispose of any material assets, other than
(A) sale of inventory or immaterial assets in the ordinary course of business consistent with past practice and (B) replacement of assets in the ordinary course of business consistent with past practice or dispositions of obsolete or
worthless assets; 
 (vi) (A) issue, create, incur, assume, guarantee, endorse or otherwise become liable or
responsible with respect to (whether directly, contingently or otherwise) any Indebtedness, except in the ordinary course of business consistent with past practice, (1) make any loans, advances or capital contributions to, or investments in,
any other Person, other than in the ordinary course of business consistent with past practice, or (2) except for Permitted Liens, subject to any Lien or otherwise encumber or permit, allow or suffer to be encumbered, any of the properties or
assets (whether tangible or intangible) of, or used by, the Company; 
 (vii) (A) make a material change in the
Company’s methods of accounting, except as required by GAAP or (B) make, change or revoke any material Tax election, file any material amended Tax Return, settle or compromise any claim or assessment in respect of a material amount of
Taxes, surrender or forfeit any right to claim a material Tax refund, or consent to any extension or waiver of the limitation period applicable to any Tax Return or any claim or assessment in respect of a material amount of Taxes; 

  
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 (viii) settle or compromise any material action, suit, investigation or
proceeding against the Company except (A) where the amount paid by the Company in settlement or compromise does not exceed $500,000 individually or $2,000,000 in the aggregate or (B) where the amount paid in settlement does not exceed the
amount reserved against such matter in the Financial Statements (or the notes thereto); 
 (ix) make any capital
expenditures that are not Pre-Approved Capital Expenditures, except for those capital expenditures that do not exceed $1,000,000 for any individual commitment and $5,000,000 in the aggregate; 

(x) (A) increase the level of wages, overall compensation or other benefits of any Covered Employees (except for
increases in salary or hourly wage rates in the ordinary course of business consistent with past practice or the granting, awarding or paying of bonuses in the ordinary course of business consistent with past practice), (B) grant any severance
or termination pay to any Covered Employee, (C) loan or advance any money or other property to any Covered Employee, (D) establish, adopt, enter into, amend or terminate any Employee Plan, or (E) grant any equity or equity-based
awards to any Covered Employees; 
 (xi) fail to maintain insurance coverage substantially equivalent to its
existing insurance coverage of its properties and assets as in effect on the date of this Agreement unless such insurance coverage is not available on commercially reasonable terms; 

(xii) take any action with respect to or in contemplation of any plan of complete or partial liquidation, dissolution,
recapitalization or other reorganization; 
 (xiii) enter into or agree to enter into any merger or
consolidation with any other Person; 
 (xiv) cancel or compromise any debt or claim or waive or release any
material right of the Company except in the ordinary course of business consistent with past practice; 
 (xv)
enter into any labor or collective bargaining agreement of the Company or, through negotiation or otherwise, make any commitment or incur any liability to any labor organization with respect to the Company; 

(xvi) enter into any transaction or enter into, renew, terminate, amend, restate, supplement or waive any rights under
any Contract to which the Company is a party, other than in the ordinary course of business consistent with past practice; 
 (xvii) change or modify its credit, collection or payment policies, procedures or practices, including acceleration of collections or receivables (whether or not past due) or fail to pay or delay payment
of payables or other liabilities; 

  
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 (xviii) except for transfers of cash pursuant to normal cash management
practices in the ordinary course of business consistent with past practice, make any investments in or loans to, or pay any fees or expenses to, or enter into or modify any Contract with any Related Persons; 

(xix) enter into any Contract, understanding or commitment that restrains, restricts, limits or impedes the ability of
the Company to compete with or conduct any business or line of business in any geographic area or solicit the employment of any persons; 
 (xx) agree, resolve, authorize or commit to do anything prohibited by this Section 5.1(b); 
 (xxi) amend, modify, cancel, waive or assign any rights under the Olin Purchase Agreement that could affect in any way the Olin Environmental Obligations; or 

(xxii) amend, modify, terminate, allow to lapse or expire, or fail to renew any Environmental Permit. 

(c) Notwithstanding anything in Section 5.1(a) to the contrary, Contributor may cause the Company to (A) make
Pre-Approved Capital Expenditures, (B) make distributions of cash or cash equivalents from the Company to Contributor and (C) take commercially reasonable actions (x) with respect to emergency situations or (y) as required to
comply with Applicable Law or by a Governmental Authority, in the case of clause (C) as reasonably determined by Contributor so long as Contributor shall immediately, upon becoming aware of the need to take any such actions, orally
inform Acquirer (promptly followed by written notice) of any such actions that are taken outside the ordinary course of business. 
 Section 5.2 Access to Information. 
 (a) From the date
of this Agreement until the Closing Date, Contributor shall give Acquirer and its Representatives reasonable access to the offices, personnel, properties and books and records (including work papers and data in possession of the Company’s
Representatives) of the Company. Any investigation pursuant to this Section 5.2(a) shall (i) be conducted at Acquirer’s sole expense, during normal business hours and in such manner so as not to interfere with the conduct of
the business of Contributor and the Company and, to the extent so requested by Contributor, under the supervision of a Representative of Contributor or the Company and (ii) not be conducted without reasonable prior notice to, and approval
(which consent shall not be unreasonably withheld, conditioned or delayed) of, Contributor. Notwithstanding the foregoing, Acquirer shall not: (x) have access to personnel records of Contributor or the Company relating to individual performance
or evaluation records, medical histories or other information which in Contributor’s good faith determination is sensitive or the disclosure of which could subject Contributor, the Company or any of their Affiliates to risk of liability (unless
such information is sufficiently redacted in order to allow such disclosure) without prior written consent of Contributor (which consent shall not be unreasonably withheld, conditioned or delayed); (y) conduct any invasive sampling or testing
of any soil, surface water, 

  
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groundwater, building materials or other environmental media, including the conduct of a Phase II environmental site assessment; or (z) have access to any information if doing so would
reasonably likely constitute a breach by Contributor, the Company or any of their respective Affiliates of any Contract to which such Person is a party or would reasonably likely constitute a violation of any Law to which Contributor, the Company or
any of their respective Affiliates is subject (provided that, in each such case Contributor shall, and shall cause the Company and the applicable Affiliates to, use all commercially reasonable efforts to provide Acquirer with access to such
information while avoiding a breach of any such Contract or a violation of any such Law, including seeking applicable waivers or consents or redacting certain information from documents), or which such Person believes in good faith could jeopardize
any attorney-client or other legal privilege. 
 (b) Neither Contributor nor any of its Representatives makes any representation
or warranty as to the accuracy of any information provided pursuant to this Section 5.2, and Acquirer may not rely on the accuracy of any such information, in each case, other than as expressly set forth in the representations and
warranties contained in the Transaction Documents. All information provided or made available to Acquirer or any of its Representatives will be subject to the Confidentiality Agreement, dated as of January 5, 2012, between Contributor and
Williams Field Services Group LLC (the “Confidentiality Agreement”), which agreement shall remain in full force and effect until the Closing and shall thereupon terminate except that the disclosure (but not the use to the
extent necessary to operate the business of the Company in the ordinary course) of any Confidential Information (as defined in the Confidentiality Agreement) to the extent related solely to Contributor or its Affiliates (for the avoidance of doubt,
other than the Company) shall continue to be governed by the terms of the Confidentiality Agreement. 
 (c) After the Closing,
Contributor and its Affiliates will hold, and will use their commercially reasonable efforts to cause their respective Representatives to hold, in confidence, unless compelled to disclose by applicable Law, all confidential documents and information
concerning the Company and the business thereof, except to the extent that such information can be shown to have been (i) previously known on a nonconfidential basis by Contributor, (ii) in the public domain through no fault of Contributor
or its Affiliates or (iii) later lawfully acquired by Contributor from sources other than those related to its prior ownership of the Company. The obligation of Contributor and its Affiliates to hold any such information in confidence shall be
satisfied if they exercise the same care with respect to such information as they would take to preserve the confidentiality of their own similar information. 
 (d) After the Closing, upon reasonable written notice, Contributor and Acquirer shall furnish or cause to be furnished to each other and their Representatives access, during normal business hours, to such
information, the Books and Records and assistance relating to the business of the Company as is necessary for any reasonable business purposes, including the preparation and filing of any Tax Return, the defense of any Tax claim or assessment, in
connection with the prosecution or defense of any investigation, claim (including any insurance claims) or legal proceeding against or governmental investigations of Contributor, Acquirer, the Company or any of their Affiliates (other than a legal
proceeding among the Parties in connection with the transactions contemplated by this Agreement and the Transaction Documents) or in order to enable Contributor or Acquirer to comply with their respective

  
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obligations under this Agreement. Each Party shall reimburse the other for reasonable documented out-of-pocket costs and expenses incurred in assisting such requesting Party pursuant to this
Section 5.2(c). 
 (e) Acquirer shall, and shall cause the Company to preserve and keep the books, records,
documents, instruments, accounts, correspondence, writings, evidences of title and other papers and electronic files relating to the business of the Company (the “Books and Records”) in its possession or the possession of the
Company for at least seven (7) years following the Closing Date or for such longer period as may be required by applicable Law; provided that, Contributor may dispose of or destroy any such Books and Records for which Contributor has
offered to turn over possession thereof to Acquirer by written notice to Acquirer at least ninety (90) days prior to the proposed date of such disposition or destruction. Contributor shall, and shall cause its Affiliates to, preserve and keep
the Books and Records in its or their possession for at least seven (7) years following the Closing Date or for such longer period as may be required by applicable Law; provided that, Acquirer may dispose of or destroy any such Books and
Records for which Acquirer has offered to turn over possession thereof to Contributor by written notice to Contributor at least ninety (90) days prior to the proposed date of such disposition or destruction. 

Section 5.3 Resignation of Officers and Managers. 

At the Closing, Contributor shall deliver to Acquirer evidence reasonably satisfactory to Acquirer of the resignation, effective as of
the Closing, of any managers and officers of the Company as requested by Acquirer at least five (5) Business Days in advance of Closing. 
 Section 5.4 Use of Contributor’s Names and Marks. 

(a) Acquirer agrees that (i) as soon as practicable following the Closing, but in no event later than ten (10) days after
Closing, Acquirer shall, and shall cause the Company to, change the name of the Company to a name that does not include any of Contributor’s Names and Marks or comprise any colorable imitations thereof; and (ii) as soon as practicable
following the Closing, but in no event later than one hundred eighty (180) days after Closing, Acquirer shall, and shall cause the Company to, cease and permanently discontinue any and all uses of any of the Contributor’s Names and Marks
and any colorable imitations thereof, and remove or cover all Contributor’s Names and Marks from, or destroy, any publications, signage, corporate letterhead, invoices, stationery, business cards, marketing materials, website content or other
materials in the Company’s possession or under its control bearing any of the Contributor’s Names and Marks, and provide Contributor with written confirmation thereof. Notwithstanding the foregoing, Acquirer shall have a period of up to
twelve (12) months from the Closing to cause the Company to permanently remove Contributor’s Names and Marks on pipeline markers or similar assets of the Company. 
 (b) In no event shall Acquirer or any of its Affiliates use any of Contributor’s Names and Marks after Closing in any manner or for any purpose different from the use of such Contributor’s Names
and Marks by the Company preceding the Closing, and neither Acquirer 

  
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nor any of its Affiliates shall affix any of the Contributor’s Names and Marks or any colorable imitations thereof on any publications, signage, corporate letterhead, invoices, stationery,
business cards, marketing materials, website content or other materials that are created or produced after the Closing. Acquirer, for itself and its Affiliates, agrees that, after the Closing Date, Acquirer and its Affiliates will not do business or
represent themselves as having any affiliation or business relationship with Contributor or any of its subsidiaries, except pursuant to any separate agreement entered into, or assumed by, Acquirer or its Affiliates on one hand, and Contributor or
its Affiliates, on the other hand. 
 (c) Acquirer expressly acknowledges and confirms that Contributor is not transferring or
assigning, and Acquirer shall not receive, any right, title or interest in or to Contributor’s Names and Marks, except the limited right to use Contributor’s Names and Marks for the sole purpose of permitting Acquirer to complete the
phase-out of such use in strict compliance with this Section 5.4. Acquirer expressly acknowledges and confirms that Contributor is not transferring or assigning, and Acquirer shall not receive, any right, title or interest in or to
Contributor’s Names and Marks (except the limited right to use for the sole purpose of permitting Acquirer to complete the phase-out in strict compliance with this Section 5.4). Notwithstanding anything to the contrary herein or in
the other Transaction Documents, prior to the Closing Date, Contributor shall be permitted to cause the Company to assign and transfer to Contributor or its Affiliates (other than the Company) any and all right, title and interest that the Company
has or may have in or to Contributor’s Names and Marks, including any goodwill therein. Furthermore, all use of Contributor’s Names and Marks by Acquirer during the phase-out period described in Section 5.4(a) shall be at all
times subject to Contributor’s direction and control, Acquirer shall, and shall cause the Company to, comply with Contributor’s instructions and direction at all times and any and all use thereof by Acquirer or the Company shall inure to
the exclusive benefit of Contributor. 
 (d) Notwithstanding anything in this Section 5.4, Acquirer and the Company
may continue to use the Contributor’s Names and Marks for so long as is reasonably necessary (but in no event longer than thirty (30) months following the Closing) to maintain the Permits of the Company or to avoid unreasonable delays with
respect to Permits. Acquirer agrees to and shall indemnify and hold harmless Contributor against any liabilities, obligations or losses which Contributor may incur as a result of such use by Acquirer of Contributor’s Names and Marks.
Furthermore, Acquirer will use commercially reasonable efforts to have the Permits reissued in the new name as soon as possible following the Closing. 
 Section 5.5 Efforts; Further Assurances. 
 (a) Subject
to the terms and conditions of this Agreement, each Party will use its reasonable best efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary or desirable under applicable Law to consummate the
transactions contemplated by this Agreement. The Parties agree, and Contributor, prior to the Closing, and Acquirer, after the Closing, agree to cause the Company, to execute and deliver such other documents, certificates, agreements and other
writings and to take such other actions as may be necessary or desirable in order to consummate or implement expeditiously the transactions 

  
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contemplated by this Agreement in accordance with the terms hereof. Contributor shall transfer, assign, convey and deliver the properties, assets and rights set forth on
Schedule 5.5(i) to the Company on or prior to the Closing. If, at any time following the date of this Agreement, either Party discovers that Contributor or any of its Affiliates (other than the Company and EnCap Energy Infrastructure
Fund, L.P.) has ownership or possession of any property, asset or right used in connection with the operation of the Company, then Contributor shall effect the transfer, assignment, conveyance and delivery of such property, asset or right to the
Company as soon as reasonably practicable. Notwithstanding the foregoing, Acquirer acknowledges to Contributor that none of the assets described or set forth on Schedule 5.5(ii) shall be transferred to the Company. 

(b) In furtherance and not in limitation of the foregoing, each of Acquirer and Contributor shall: (i) use reasonable best efforts
to obtain, or in the case of Contributor, cause the Company to obtain, all necessary consents, waivers, authorizations and approvals of all Governmental Authorities, and of all other Persons, required in connection with the execution, delivery and
performance of this Agreement; and (ii) make an appropriate filing of a Notification and Report Form pursuant to the HSR Act with respect to the transactions contemplated by this Agreement as promptly as reasonably practicable and in any event
within ten (10) days after the date of this Agreement and shall supply as promptly as reasonably practicable any additional information and documentary material that may be requested pursuant to the HSR Act. Each of Acquirer and Contributor
shall request expedited treatment of any such filings, shall promptly furnish each other with copies of any notices, correspondence or other written communication from the relevant Governmental Authority, shall promptly make any appropriate or
necessary subsequent or supplemental filings and shall cooperate in the preparation of such filings as is reasonably necessary and appropriate; provided that, neither Acquirer nor Contributor shall be required to, in the absence of a mutually
acceptable joint defense agreement, waive the attorney client, work product or any other applicable privilege protecting information from being disclosed to Third Parties. Each of Acquirer and Contributor further agree to consult and cooperate with
the other Party with respect to, and to permit, to the extent reasonably practicable, the other Party to be present at conferences and meetings for the purpose of obtaining, clearance under the HSR Act. 

(c) Each of Acquirer and Contributor shall cooperate in good faith with all Governmental Authorities and shall not take any action that
could reasonably be expected to adversely affect or delay receiving any approval, clearance or expiration of any applicable waiting period to be obtained from any Governmental Authority charged with enforcing, applying, administering, or
investigating any applicable Law designed to prohibit, restrict or regulate actions for the purpose or effect of monopolization, restraining trade or abusing a dominant position (collectively, “Antitrust Laws”), including the
United States Federal Trade Commission, the Antitrust Division of the United States Department of Justice, any attorney general of a state of the United States or any other competition authority of any jurisdiction (each, an “Antitrust
Authority”). In the event that any action is threatened or instituted challenging the transactions contemplated by this Agreement as violative of any Antitrust Law, each of Acquirer and Contributor shall use reasonable best efforts to
take all action necessary to promptly resolve such challenges. In the event that any permanent or preliminary injunction or other order is entered or becomes reasonably foreseeable to be entered in any proceeding that would make consummation of the
transactions contemplated by this Agreement unlawful or that would 

  
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restrain, enjoin or otherwise prevent or materially delay the consummation of the transactions contemplated by this Agreement, Acquirer shall use reasonable best efforts to promptly take all
steps necessary to vacate, modify or suspend such injunction or order as promptly as practicable and in any event prior to the Outside Date. Notwithstanding anything herein to the contrary, none of Acquirer, Contributor or any of their respective
Affiliates shall have any obligation to (i) hold separate or divest any their respective properties or assets, (ii) defend against any lawsuit, action or proceeding, judicial or administrative, challenging this Agreement or the
transactions contemplated hereby, or (iii) expend a material amount of funds, in each case in connection with its compliance with this Section 5.5. 
 Section 5.6 Public Announcements. 
 Prior to and with
respect to the Closing, Acquirer and Contributor agree to consult with each other before issuing any press release or making any public statement with respect to this Agreement or the transactions contemplated by this Agreement and, except for any
press releases and public announcements the making of which may be required by applicable Law or any listing agreement with any national securities exchange where such prior consultation is not reasonably practicable, will not issue any such press
release or make any such public statement prior to such consultation. 
 Section 5.7 Surety Bonds.

 As soon as practicable after the Closing, Acquirer will use its reasonable best efforts to obtain Contributor’s and any
of its Affiliates’ release from any surety bonds of the Company set forth in Schedule 5.7 and any surety bonds entered into by the Company after the date of this Agreement and prior to Closing in the ordinary course consistent with
past practices. From and after the Closing, Acquirer shall, and shall cause the Company to, indemnify Contributor and its Affiliates against, and shall hold each of them harmless from, any and all Losses incurred or suffered by Contributor of any of
its Affiliates pursuant to or arising out of such surety bonds. Contributor shall have no obligation to keep such surety bonds in effect from and after the Closing. 
 Section 5.8 Employee Matters. 
 (a) Notwithstanding any
other provision of this Agreement, Contributor shall be solely responsible for all costs, expenses and liabilities under or in any way attributable to the Client Service Agreement (whether occurring on, prior to or after the Closing Date), including
costs or liabilities in any way attributable to: (i) current or former employees of Contributor, the Company or their respective Affiliates, Employee Plans, COBRA rights and benefits, and (ii) all charges, fees, expenses and other items
under or in any way attributable to the Client Service Agreement, including the fees or other expenses charged by Co-Employer and all costs, liability and expense of terminating the Client Service Agreement. Contributor shall not, and shall cause
its Affiliates not to, directly or indirectly through any Person or contractual arrangement, solicit, recruit or hire any Covered Employee for, or offer any Covered Employee employment with, Contributor or any of its Affiliates (other than the
Company). 

  
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 (b) No later than ten (10) Business Days prior to the anticipated Closing Date,
Acquirer or one or more of its Affiliates shall offer employment to each Employee whose names and positions are set forth on the document entitled “Covered Employees” made available to Acquirer in the virtual data room (the
“Covered Employees”), which offers shall (i) be written offers of employment substantially consistent with the terms of this Section 5.8, (ii) be on terms or conditions comparable to similarly situated
employees of Acquirer or its applicable Affiliate (with credit for all periods of employment or service with Contributor and its Affiliates (including, for the avoidance of doubt, service with the Co-Employer relating to Contributor and its
Affiliates) prior to the Closing Date solely for purposes of paid time off and severance entitlement, and not for any other purpose under any employee benefit plan or program), and such Covered Employee shall be subject to the applicable screening
and testing policies and procedures of Acquirer or its applicable Affiliate, and (iii) otherwise be consistent with standard terms, conditions and policies of employment of Acquirer or its applicable Affiliates (each a “Qualifying
Offer”). Each Covered Employee shall have three (3) Business Days to accept his or her Qualifying Offer, and failure to accept such Qualifying Offer within such period shall constitute a rejection of such Qualifying Offer. No later
than five (5) Business Days before the anticipated Closing Date, Acquirer shall inform Contributor of the identities of those Covered Employees who have accepted Acquirer’s or such Affiliate’s Qualifying Offer and those, if any, who
have declined the Qualifying Offer. Acquirer shall be solely responsible, and shall reimburse Contributor, for any severance or other obligations (including the employer-paid portion of any payroll taxes) due to a Covered Employee under the Caiman
Severance Policy (which was made available to Acquirer in the virtual data room) that arise due to Acquirer’s failure to make a Qualifying Offer to such Covered Employee (subject to clauses (i) through (iii) above). A
Covered Employee who signifies his or her acceptance of the Qualifying Offer, but does not report for work as specified in the Qualifying Offer and does not otherwise satisfy each of the terms and conditions of such Qualifying Offer, shall be deemed
not to have accepted the Qualifying Offer. Covered Employees who accept and comply with the terms and conditions of Qualifying Offers from Acquirer or such Affiliate are referred to herein as “Transferred Employees.”
Employment of Transferred Employees by Acquirer or such Affiliate shall commence (i) in the case of a Covered Employee who is actively at work on the Closing Date, 12:00 a.m. of the day after the Closing Date, and shall be deemed for all
purposes to have occurred with no interruption or break in service, (ii) in the case of a Covered Employee who is on approved leave on the Closing Date, upon such Covered Employee’s return from leave within ninety (90) days of
Closing, shall provide Contributor with appropriate return to work documents and Contributor will then contact Acquirer or such Affiliate to arrange for appropriate transition of services in accordance with the terms and conditions of the Qualifying
Offer, and (iii) in the case of any Covered Employee who is not actively at work on the Closing Date and is not on approved leave, shall be deemed not to have accepted the qualifying offer and will remain with the Contributor. Contributor shall
be solely responsible, and shall directly provide for the full cost of, any severance or other obligations (including the employer-paid portion of any payroll taxes and the provision of any COBRA continuation coverage) due to a Covered Employee that
arise due to the failure of such Covered Employee who receives a Qualifying Offer to become a Transferred Employee (as a result of such Covered Employee’s rejection of the Qualifying Offer or otherwise). 

  
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 (c) All Transferred Employees shall be terminated by Contributor and its Affiliates and
shall cease active participation in the Employee Plans effective as of 11:59 p.m. local time on the day immediately preceding the Closing Date. 
 (d) In the event any Transferred Employee is terminated without cause by Acquirer or its applicable Affiliate within twelve (12) months after the Closing Date, such individual shall be eligible for
severance benefits in amounts and upon terms no less favorable than the more favorable of (i) the severance benefits described in the document entitled “Caiman Severance Benefits” made available to Acquirer in the virtual data room
(taking into account service with Acquirer and its Affiliates (including any co-employer) from and after the Closing Date) and (ii) those afforded by the severance plans or arrangements in which similarly-situated employees of Acquirer and its
Affiliates (including any co-employer) participate in at the time of such termination. 
 (e) Notwithstanding any other
provision of this Agreement, except as otherwise provided in this Section 5.8, none of Acquirer, or Acquirer’s Affiliates (including, after the Closing, the Company) shall have any liability or obligation, contingent or otherwise,
arising from or relating to (i) any employee’s (or any other current or former employee of Contributor or any of its Affiliates, including, before the Closing, the Company) employment with, or termination of employment by, Contributor or
any of its Affiliates, (ii) the Employee Plans or participation by employees (or any other current or former employee of Contributor or any of its Affiliates, including, before the Closing, the Company) or Transferred Employees in the Employee
Plans, or (iii) Title IV of ERISA by reason of the Company being treated as a single employer that includes Contributor pursuant to Section 4001 of ERISA or Section 414 of the Code. In particular and without limiting the generality of
the foregoing sentence, except as provided in Section 5.8(c), Contributor and its Affiliates (other than the Company) shall be solely responsible for payment of any severance and termination costs, accrued and unpaid bonus or incentive
payments with respect to performance periods ending on or before the Closing Date, payment of any bonus or other incentive compensation for performance periods beginning before and ending after the Closing Date (disregarding any requirement that a
participant be employed with Contributor or any of its Affiliates on the date of such payment or through the performance period), and/or Sections 601 et seq. of ERISA (COBRA) costs) with respect to the employment or termination of
employment by Contributor or any Affiliate of Contributor of employees (or any other current or former employee of Contributor or any of its Affiliates, including, before the Closing, the Company), whether or not they become Transferred Employees,
that are incurred or due as a result of the transactions contemplated by this Agreement (including but not limited to the termination of any of the employees by Contributor or its Affiliates but excluding the termination of any Transferred Employees
by Acquirer and its Affiliates (including, after the Closing, the Company). Except as otherwise provided in this Section 5.8, after the Closing, Acquirer and its Affiliates shall be solely responsible for all employment and employee
benefits-related liabilities, obligations, claims and losses that are made and payable after the Closing, are incurred or arise after the Closing Date with respect to employment with the Acquirer and its Affiliates (including, after the Closing, the
Company) after the Closing Date, and relate to any Transferred Employee (or any dependent or beneficiary of any such Transferred Employee). 
 (f) Notwithstanding the foregoing, nothing express or implied by this Agreement shall (i) confer upon any Employee (or any other current or former employee of

  
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Contributor or any of its Affiliates, including the Company), or representative thereof, any rights or remedies, including any right to employment or benefits of any nature or kind whatsoever,
under or by reason of this Agreement or otherwise limit the right of Contributor, Acquirer and their respective Affiliates to terminate the employment of any Covered Employee subject to any applicable requirements of Section 5.8(c), or
(ii) be deemed to amend any employee benefit plan of Contributor, Acquirer, the Co-Employer or any of their Affiliates. 

Section 5.9 Termination and Release Relating to Related-Party Transactions. 

On or prior to the Closing Date, Contributor shall cause the Company to (a) terminate all Contracts with Contributor or any of its
Affiliates (other than those Contracts set forth in Schedule 5.9) and (b) deliver irrevocable and unconditional releases executed by such Affiliates with whom the Company has terminated such Contracts pursuant to this
Section 5.9 providing that no further payments are due, or may become due, under or in respect of any such terminated Contacts; provided that, in no event shall the Company pay any fee or otherwise incur any expense or financial
exposure with respect to any such termination or release; provided for purposes of clarification that no action contemplated by this Section 5.9 shall release Contributor from any obligation arising under this Agreement or the
transactions contemplated herby. 
 Section 5.10 Monthly Financial Statements. 

As soon as reasonably practicable, but in no event later than twenty (20) days after the end of each calendar month during the
period from the date hereof to the Closing, Contributor shall cause the Company to provide Acquirer with (i) unaudited monthly financial statements and (ii) operating or management reports (such reports to be in the form prepared by the
Company in the ordinary course of business consistent with past practice) of the Company for such preceding month. 

Section 5.11 Repayment and Satisfaction of Scheduled Debt. 

At least two (2) Business Days prior to the Closing, Contributor (a) shall obtain and deliver, or shall cause to be obtained
and delivered, to Acquirer payoff letters from each financial institution or other lender in respect of any and all Indebtedness of the Company (including the Scheduled Debt), each in form and substance reasonably satisfactory to Acquirer,
confirming the total payment required to be made as of the Closing Date to repay in full the amount of such Indebtedness and (b) shall authorize Acquirer to wire transfer a portion of the Cash Consideration directly to holders of the Scheduled
Debt, on Contributor’s behalf, so to cause the amount of Scheduled Debt determined by Acquirer to be repaid and fully satisfied at the Closing to be so repaid and fully satisfied. 

Section 5.12 Environmental Matters. 
 Contributor shall, and shall cause the Company to, use commercially reasonable efforts to cooperate with, assist and support Acquirer’s efforts to obtain a letter from the EPA confirming the
Company’s or Acquirer’s ability to qualify as a “bona fide prospective purchaser” under relevant Environmental Laws (collectively, the “Environmental Comfort Letter”). If the EPA requires additional due
diligence documentation or other information, or if the EPA requires Acquirer to obtain a new letter, Contributor shall, and shall cause the Company to, use commercially reasonable efforts to cooperate with, assist and support Acquirer’s
efforts to obtain such new letter. 

  
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 Section 5.13 Exclusive Dealing. 

(a) Until such time, if any, that this Agreement is terminated pursuant to Section 8.1, Contributor shall not, and shall
cause the Company and the respective Representatives not to, directly or indirectly, solicit, initiate, encourage any inquiries, proposals or offers from, discuss or negotiate with, provide any non-public information to, or consider the merits of
any unsolicited inquiries, proposals or offers from, any Person (other than Acquirer and its Representatives) relating to any transaction involving the sale of the business or assets of the Company, the sale of any of the membership interests or
other equity interests of the Company, or any merger, consolidation, business combination or similar transaction involving the Company. 
 (b) Contributor shall notify Acquirer promptly, but in any event within 24 hours, orally and in writing if Contributor, the Company or any of their respective Affiliates or Representatives receives
any inquiry, proposal, offer or other contact from any Person with respect to the matters described in Section 5.13(a). Any such notice to Acquirer shall indicate in reasonable detail the identity of the Person making such inquiry,
proposal, offer or other contact and the terms and conditions of such proposal, offer, inquiry or other contact. Contributor shall not, and shall cause the Company and their respective Representatives not to, release any Person from, or waive any
provision of, any confidentiality or standstill agreement to which Contributor or the Company is a party, without the prior written consent of the Acquirer. 
 Section 5.14 Restrictions on Transfer of Equity Consideration. 
 (a) Contributor acknowledges and agrees that the WPZ Units constituting the Equity Consideration shall, when issued, constitute restricted securities that have not been registered for issuance or transfer
under applicable federal or state securities laws and that such shares and units will, when issued bear a legend as provided in the Registration Rights Agreement. In addition, Contributor agrees not to transfer any of the WPZ Units constituting the
Equity Consideration at any time during the period ending eighteen (18) months after the Closing without the written consent of Acquirer. Notwithstanding anything in this Section 5.14, certain of the WPZ Units constituting the
Equity Consideration shall be subject to the terms and conditions of the Escrow Agreement. Contributor will refrain, for the period ending eighteen (18) months after the Closing, from transferring or otherwise disposing of the Equity
Consideration in such manner as to cause Acquirer to be in violation of the registration requirements of the Securities Act or applicable state securities or blue sky laws. For the purposes of this Section 5.14,
“transfer” (and all correlative terms) means, as to any WPZ Units, a direct or indirect sale, assignment, conveyance, gift, exchange, lease or other disposition or transfer of such WPZ Units, whether effected voluntarily,
involuntarily or by operation of Law, excluding the creation of a Lien but including a transfer in connection with, or in lieu of, the foreclosure of a Lien. 

  
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 (b) Acquirer acknowledges that Contributor may transfer to Highstar IV Caiman Holdings LLC,
a Delaware limited liability company (“Highstar”), its portion of the WPZ Units (other than WPZ Units that are Escrow Units), not to exceed four and one-half percent (4.5%) of the total WPZ Units that are not Escrow
Units, conditioned upon Highstar delivering to Acquirer (i) a lock-up letter pursuant to which Highstar agrees (A) to the same restrictions on transfer set forth in Section 5.14(a) above with respect to the WPZ Units held in
its name and (B) not to receive any benefits under the Registration Rights Agreement, and (ii) reasonable representations and a reasonable legal opinion, in each case customary for transfers of this type. 

Section 5.15 Non-Competition; Non-Solicitation. 

(a) For a period of two (2) years following the Closing, Contributor shall not, and shall cause its direct and indirect subsidiaries
not to, directly or indirectly through any Person or contractual arrangement: 
 (i) engage in any gas gathering,
processing or fractionation business or any liquid hydrocarbon business anywhere in the Territory that is of the kind of businesses currently operated or currently intended by the Company to be operated by the Company (the “Restricted
Business”), or perform management, executive or supervisory functions with respect to, own, operate, join, control, render financial assistance to, receive any economic benefit from, exert any influence upon, participate in, render
services or advice to, or as applicable and within its control, allow any of its officers or employees to be connected as an officer, employee, partner, member, stockholder, consultant or otherwise with, any business or Person that competes in whole
or in part with the Business; 
 (ii) solicit, recruit or hire any person who at any time after the date of this
Agreement becomes a Transferred Employee; provided that, the foregoing shall not prohibit Contributor or its direct or indirect subsidiaries from (A) hiring a Transferred Employee who responds to a general solicitation to the public of
general advertising or similar methods of solicitation by search firms not specifically directed at Transferred Employees or (B) soliciting, recruiting or hiring any Transferred Employee who has ceased to be employed or retained by the Company,
Acquirer or any of their respective Affiliates for at least twelve (12) months; or 
 (iii) approach or
seek business in the Territory constituting Restricted Business from any Customer (as hereinafter defined), refer business in the Territory constituting Restricted Business from any Customer to any Person or be paid commissions based on sales from
business in the Territory constituting Restricted Business received from any Customer by any Person (it being understood that, for purposes of this Section 5.15, the term “Customer” means any Person to which the
Company provided products or services during the twelve (12) month period prior to the Closing Date); provided that, the foregoing shall not prohibit any referral of business by Contributor to the Company or Acquirer. 

  
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 Notwithstanding anything to the contrary in this Section 5.15(a), none of the following actions
shall be deemed to be a violation of the restrictive covenants contained in this Section 5.15(a): (A) owning less than five percent (5%) of any class of securities traded on a national stock exchange issued by any Person
engaged in the Restricted Business; (B) acquiring the equity securities or assets of any Person of which less than twenty percent (20%) of its revenues are attributable to the Restricted Business; and (C) the conduct and continuation
of business operations of the kind currently conducted (including fulfillment of existing obligations under contracts currently in effect) in the Counties of Greene, Fayette, Somerset, Bedford, Indiana, Clearfield, Cambria and Blair in Pennsylvania
and Preston County in West Virginia. 
 (b) For a period of two (2) years following the Closing, Acquirer shall not,
directly or indirectly through any Person or contractual arrangement, solicit, recruit or hire any person who on the date of this Agreement is an employee of Contributor (other than the Covered Employees); provided that, the foregoing shall
not prohibit (A) hiring any such employee who responds to a general solicitation to the public of general advertising or similar methods of solicitation by search firms not specifically directed at such employees or (B) Acquirer or any of
its Affiliates from soliciting, recruiting or hiring any such employee who has ceased to be employed or retained by Contributor or any of its Affiliates for at least twelve (12) months. 

(c) Each Party acknowledges that the covenants of such Party set forth in this Section 5.15 are an essential element of this
Agreement and that any breach by a Party of any provision of this Section 5.15 may result in irreparable injury to the other Party. Each Party acknowledges that, in the event of such a breach, in addition to all other remedies available
at Law, the other Party shall be entitled to seek equitable relief, including injunctive relief, as well as such other remedies as may be available at law and equity. Each Party has independently consulted with its counsel and after such
consultation agrees that the covenants set forth in this Section 5.15 are reasonable and proper to protect the legitimate interest of the other Party. 
 (d) If a court of competent jurisdiction determines that the character, duration or geographical scope of the provisions of Section 5.15(a) are unreasonable, it is the intention and the
agreement of the Parties that these provisions shall be construed by the court in such a manner as to impose only those restrictions on Contributor’s conduct that are reasonable in light of the circumstances and as are necessary to assure to
Acquirer the benefits of this Agreement. If, in any judicial proceeding, a court shall refuse to enforce all of the separate covenants of Section 5.15(a) because taken together they are more extensive than necessary to assure to Acquirer
the intended benefits of this Agreement, it is expressly understood and agreed by the Parties that the provisions of Section 5.15 that, if eliminated, would permit the remaining separate provisions to be enforced in such proceeding,
shall be deemed eliminated, for the purposes of such proceeding, from this Agreement. 
 Section 5.16 Casualty
Event. 
 (a) If, before the Closing, all or any portion of the tangible assets of the Company (the “Company
Systems”) are damaged or destroyed in whole or in part (the portion of the Company Systems so damaged or destroyed, the “Damaged Portion”), as a result of any

  
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event following the date hereof and prior to the Closing (a “Casualty Event”), Contributor shall notify Acquirer promptly in writing (a “Casualty Event
Notice”) of the Casualty Event. The Casualty Event Notice shall include: (i) a reasonable description of the facts and circumstances surrounding the Casualty Event; (ii) Contributor’s preliminary assessment of the effect
of the Casualty Event on the Company Systems; (iii) Contributor’s preliminary assessment of whether, and the extent to which, any Losses sustained as a result of such Casualty Event are covered by one or more of Contributor’s
insurance policies then in effect; and (iv) Contributor’s election pursuant to Section 5.16(b), if applicable. 
 (b) If (i) Contributor reasonably expects the Damaged Portion resulting from a Casualty Event can be fully remedied and (ii) the Uninsured Casualty Loss Amount resulting from such Casualty Event
is greater than $5,000,000 but less than $50,000,000, then Contributor may elect, by written notice to Acquirer, to (x) remedy such Damaged Portion or (y) reduce the amount of the Purchase Price by such Uninsured Casualty Loss Amount. If,
with respect to any Casualty Event, Contributor elects to remedy the Damaged Portion resulting therefrom or reduce the Purchase Price pursuant to this Section 5.16(b), then such Casualty Event shall have no effect for purposes of
determining whether Acquirer’s conditions to Closing set forth in Section 7.2 have been fulfilled. If, with respect to such Casualty Event, Contributor elects neither to remedy the Damaged Portion resulting therefrom nor reduce the
Purchase Price pursuant to this Section 5.16(b), then such Casualty Event shall be taken into account for purposes of determining whether Acquirer’s conditions to Closing set forth in Section 7.2 have been fulfilled.

 (c) If Contributor elects to remedy the Damaged Portion pursuant to Section 5.16(b): (i) Contributor shall
promptly commence and diligently remedy such Damaged Portion at its sole cost and expense; (ii) Contributor shall be entitled to all of the insurance proceeds to which Contributor or any of its Affiliates are entitled with respect to such
Casualty Event; and (iii) the Closing and the Outside Date shall be delayed and extended for such reasonable time as is necessary for Contributor to complete any such repair or restoration. 

(d) If the Uninsured Casualty Loss Amount resulting from a Casualty Event is in excess of $50,000,000, then either Party can terminate
this Agreement by written notice to the other Party, unless the Parties agree to a mutually acceptable reduction in the Purchase Price. If the Uninsured Casualty Loss Amount resulting from a Casualty Event is $5,000,000 or less, then:
(i) neither Party’s rights or obligations under this Agreement shall be affected in any way; (ii) there will not be a breach of any representation or warranty by Contributor as a result of the Damaged Portion; (iii) neither Party
will have any right of termination under this Agreement as a result of the Damaged Portion; and (iv) there shall be no change to the Purchase Price pursuant to this Section 5.16. 

Section 5.17 Assignment of Certain Insurance Policies. 

On or prior to the Closing Date, Contributor shall assign, or shall cause to be assigned, to the Company the insurance policy or policies
set forth in Schedule 3.17 under the headings “Builder’s Risk Insurance Policy” and “Environmental Liability Insurance Policy” with substantially the same terms and conditions (including coverage, premium amount
and limitations of liability) as those currently contained in such insurance policies (collectively, the “Assigned Insurance Policies”). Acquirer shall use commercially reasonable efforts to cause Contributor to be named, or
continue to be named, as an additional insured party under the Assigned Insurance Policies. 

  
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 Section 5.18 Financing Cooperation. 

(a) Contributor shall use its reasonable efforts and shall cause the Company and their respective Representatives to use their reasonable
efforts to provide to Acquirer, at Acquirer’s sole expense, all cooperation reasonably requested by Acquirer in connection with the arrangement of any bridge or other debt financing entered into by Acquirer in connection with the Closing and
the transactions contemplated by this Agreement (a “Debt Financing”). 
 (b) Acquirer acknowledges that
obtaining the Debt Financing in connection with the Closing is not a condition to Acquirer complying with its obligations under this Agreement, including closing the transactions contemplated herein following satisfaction or waiver of the conditions
in Section 7.2. 
 ARTICLE 6 
 TAX MATTERS 
 Section 6.1 Transfer Taxes.

 Acquirer and Contributor shall each be responsible for 50% of any and all excise, sales, use, stamp, transfer, documentary,
filing, recordation, value added Taxes and other similar Taxes and fees, if any, that are actually incurred as a result of the purchase and the sale of the Purchased Interests, together with any interest, additions or penalties with respect thereto
and interest thereon (collectively, “Transfer Taxes”). Acquirer and Contributor shall cooperate in good faith to minimize, to the extent permissible under applicable Laws, the amount of any such Transfer Taxes and shall
cooperate and timely make all filings, returns, reports, and forms with respect to such Transfer Taxes. Acquirer and Contributor shall execute and deliver to each other at the Closing any appropriate exemption certificate relating to any available
exemption from Transfer Taxes. 
 Section 6.2 Tax Returns. 

(a) Contributor shall prepare and timely file or cause to be prepared and timely filed all Tax Returns required to be filed by the
Company for all taxable periods ending on or prior to the Closing Date that are due after the Closing Date. Such Tax Returns shall be prepared on a basis consistent with past practices, except to the extent otherwise required by applicable Law.

 (b) Acquirer shall cause the Company to prepare and timely file all Tax Returns required to be filed by the Company (other
than Tax Returns required to be prepared and filed by Contributor pursuant to Section 6.2(a)) that are due after the Closing Date. 

  
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 (c) Not less than twenty (20) days prior to the due date for filing of any Tax Return
described in Section 6.2(a) or Section 6.2(b) for which the other Party has any liability, the filing Party shall deliver a copy of such Tax Return to the other Party for its review and reasonable comment. The filing Party
shall cause such Tax Return (as revised to incorporate the other Party’s reasonable comments) to be timely filed and will provide a copy to the other Party. Contributor shall pay directly to Acquirer in accordance with
Section 9.2(e) the portion of the Taxes shown due on such Tax Return that constitute Pre-Closing Taxes no later than two (2) days prior to the due date for the filing of any such Tax Return and the Acquirer shall pay to the
applicable Governmental Authority the amount of Taxes shown such on such Tax Return no later than the due date for filing such Tax Return. 
 Section 6.3 Pre-Effective Straddle Period Taxes. 
 For
purposes of determining the portion of any Taxes imposed on the Company for any Straddle Period that are Pre-Closing Taxes, the portion of such Taxes attributable to the Pre-Effective Straddle Period shall, in the case of any Taxes that are imposed
on a periodic basis and are payable for the Straddle Period, the portion of such Tax which relates to the Pre-Effective Straddle Period be (i) in the case of any Taxes other than Taxes based upon or related to income or receipts, deemed to be
the amount of such Tax for the entire taxable period multiplied by a fraction, the numerator of which is the number of days in the taxable period ending on the Closing Date and the denominator of which is the number of days in the entire
taxable period, and (ii) in the case of any Tax based upon or related to income or receipts, deemed equal to the amount which would be payable if the relevant taxable period ended on the Closing Date. 

Section 6.4 Amended Tax Returns. 
 Unless required by applicable Law, no amended Tax Return with respect to a Pre-Effective Period or Straddle Period shall be filed by or on behalf of the Company without consent of the Contributor.

 Section 6.5 Tax Refunds. 
 The amount of any refunds or credits of Taxes of the Company for any Pre-Effective Period shall be for the account of Contributor. The amount of any refunds or credits of Taxes of the Company for any Tax
period beginning after the Closing Date shall be for the account of Acquirer. The amount of any refund or credit of Taxes of the Company for any Straddle Period shall be equitably apportioned between Acquirer and Contributor in accordance with the
principles set forth in Section 6.3. Each Party shall forward, and shall cause its Affiliates to forward, to the other Party entitled to receive a refund or credit of Tax pursuant to this Section 6.5, the amount of such
refund within ten (10) days after such refund is received, together with any interest received with respect to such refund or credit. Acquirer shall take all commercially reasonable actions, and shall cause the Company to take all commercially
reasonable actions, to obtain any Tax refunds to which Contributor would be entitled pursuant to this Section 6.5. 

Section 6.6 Cooperation. 
 Each Party shall, and shall cause their respective Affiliates to, provide to the other Party such cooperation, documentation and information as any of them reasonably may request in filing any

  
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Tax Return, determining a liability for Taxes or conducting any audit, litigation, or other proceeding (each, a “Tax Proceeding”) with respect to Taxes imposed on or with
respect to the assets, operations or activities of the Company. 
 ARTICLE 7 

CONDITIONS TO CLOSING 
 Section 7.1 Conditions to Obligations of All Parties. 

The obligations of the Parties to consummate the Closing are subject to the satisfaction of the following conditions: 

(a) Any applicable waiting period under the HSR Act relating to the transactions contemplated by this Agreement shall have expired or
been terminated or any applicable approval thereunder shall have been obtained. 
 (b) No order, injunction or decree issued by
a court of competent jurisdiction preventing the consummation of the Closing or any of the material transactions contemplated by this Agreement or the other Transaction Documents shall be in effect. 

Section 7.2 Conditions to Obligations of Acquirer. 

The obligation of Acquirer to consummate the Closing is subject to the satisfaction of the following further conditions: 

(a) (i) The representations and warranties of Contributor contained in Section 3.1, Section 3.2 and
Section 3.4 (disregarding all qualifications as to materiality and Material Adverse Effect and qualifications of similar import contained therein) shall be true and correct in all material respects at and as of the Closing Date, as if
made at and as of such date (other than such representations and warranties that by their terms address matters only as of another specific time, which shall be true and correct in all material respects only as of such time), and (ii) all other
representations and warranties of Contributor contained in this Agreement shall be true and correct at and as of the Closing Date, as if made at and as of such date (other than such representations and warranties that by their terms address matters
only as of another specific time, which shall be true and correct in all respects only as of such time), except (disregarding all qualifications as to materiality and Material Adverse Effect and qualifications of similar import contained therein)
where the failure of such representations and warranties, individually or in the aggregate, to be true and correct would not reasonably be expected to have a Material Adverse Effect. 

(b) Contributor shall have performed in all material respects all of the covenants and agreements required to be performed by Contributor
under this Agreement at or prior to the Closing. 
 (c) Contributor shall have complied with Section 5.11 in all
respects. 

  
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 (d) Contributor shall have delivered or caused to be delivered to Acquirer a statement
pursuant to Treasury Regulation Section 1.1445 2(b)(2) certifying that Contributor is not a foreign person. 
 (e)
Contributor shall have delivered or caused to be delivered a certificate executed by a duly authorized officer of Contributor, dated the Closing Date, stating that the conditions to Acquirer’s obligations set forth in Section 7.2(a)
and Section 7.2(b) have been satisfied. 
 (f) Contributor and the Company shall have obtained those consents listed
on Schedule 7.2(f), each in form and substance reasonably satisfactory to Acquirer, and copies thereof shall have been delivered to Acquirer. 
 (g) Acquirer shall have received the written resignations and release of claims to fees or expenses of each of the managers and officers of the Company, each in form and substance reasonably satisfactory
to Acquirer. 
 (h) Acquirer shall have received the items listed in clauses (iii), (v) and
(vi) of Section 2.2(b). 
 (i) Contributor shall have complied in all respects with Section 5.17.

 Section 7.3 Conditions to Obligations of Contributor. 

The obligations of Contributor and the Company to consummate the Closing are subject to the satisfaction of the following further
conditions: 
 (a) (i) The representations and warranties of Acquirer contained in Section 4.1,
Section 4.2 and Section 4.9 (disregarding all qualifications as to materiality and qualifications of similar import contained therein) shall be true and correct in all material respects at and as of the Closing Date, as if
made at and as of such date (other than such representations and warranties that by their terms address matters only as of another specific time, which shall be true and correct in all material respects only as of such time), and (ii) all other
representations and warranties of Acquirer contained in this Agreement shall be true and correct at and as of the Closing Date, as if made at and as of such date (other than such representations and warranties that by their terms address matters
only as of another specific time, which shall be true and correct in all respects only as of such time), except (disregarding all qualifications as to materiality and qualifications of similar import contained therein) where the failure of such
representations and warranties, individually or in the aggregate, to be true and correct would not reasonably be expected to have a material adverse effect on Acquirer’s ability to consummate the transactions contemplated by this Agreement.

 (b) Acquirer shall have performed in all material respects all of the covenants and agreements required to be performed by
Acquirer under this Agreement at or prior to the Closing. 

  
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 (c) Acquirer shall have delivered a certificate executed by a duly authorized officer of
Acquirer, dated the Closing Date, stating that the conditions to Contributor’s obligations set forth in Section 7.3(a) and Section 7.3(b) have been satisfied. 

(d) Contributor (or the Escrow Agent, in the case of Section 2.2(b)(ii)) shall have received the items listed in
clauses (i), (ii) and (v) of Section 2.2(b). 
 Section 7.4
Frustration of Closing Conditions. 
 Neither Party may rely on the failure of any condition set forth in
Section 7.1, Section 7.2 or Section 7.3, as the case may be, to be satisfied to excuse such Party’s obligation to effect the transactions contemplated by this Agreement if such failure was caused by such
Party’s failure to use the standard of efforts required from such Party to consummate the transactions contemplated by this Agreement, including as required by and subject to Section 5.5. 

ARTICLE 8 

TERMINATION 
 Section 8.1 Grounds for Termination. 
 This Agreement
may be terminated at any time prior to the Closing: 
 (a) by mutual written agreement of Contributor and Acquirer; 

(b) by either Contributor or Acquirer if the Closing shall not have been consummated on or before the ninetieth (90th) day following
the date of this Agreement (the “Outside Date”); provided that, if the U.S. Department of Justice or the U.S. Federal Trade Commission issues a request for “additional information and documentary material relevant
to the proposed acquisition” with respect to the transactions contemplated by this Agreement pursuant to 15 U.S.C. § 18a, then either Contributor or Acquirer shall have the right extend such period by an additional ninety
(90) days, such that the Outside Date shall be the one hundred eightieth (180th) day following the date of this Agreement; provided further that, the right to terminate this Agreement pursuant to this Section 8.1(b)
shall not be available to any Party whose breach of any provision of this Agreement results in the failure of the Closing to be consummated prior to the Outside Date; 
 (c) by Contributor, if Acquirer breaches or fails to perform in any respect any of its representations, warranties or covenants contained in this Agreement and (i) such breach or failure to perform
would give rise to the failure of a condition set forth in Section 7.3, (ii) such failure of condition cannot be cured or, if curable, has not been cured prior to the earlier of thirty (30) days following receipt by Acquirer of
written notice of such breach or failure to perform or two (2) Business Days prior to the Outside Date, and (iii) such breach or failure to perform or such failure of condition has not been waived by Contributor; 

(d) by Acquirer, if Contributor breaches or fails to perform in any respect any of its representations, warranties or covenants contained
in this Agreement and (i) such breach or failure to perform would give rise to the failure of a condition set forth in Section 7.2, (ii) such failure of condition cannot be cured or, if curable, has not been cured prior to the
earlier of thirty 

  
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(30) days following receipt by Contributor of written notice of such breach or failure to perform or two (2) Business Days prior to the Outside Date, and (iii) such breach or failure to
perform or such failure of condition has not been waived by Acquirer; or 
 (e) by either Contributor or Acquirer if
consummation of the transactions contemplated by this Agreement would violate any nonappealable final order, decree or judgment of any Governmental Authority having competent jurisdiction; 
 provided that, the right to terminate this Agreement pursuant to this Section 8.1 shall not be available to any Party if such Party has failed in any material respect to fulfill any of
its obligations under Section 5.5 of this Agreement. The Party desiring to terminate this Agreement pursuant to this Section 8.1 shall give written notice of such termination to the other Parties. 

Section 8.2 Effect of Termination. 
 If this Agreement is terminated as permitted by Section 8.1, this Agreement shall become void and of no effect without liability to any Person on the part of any Party (or any of its
Representatives or Affiliates); provided, however, that notwithstanding anything in the foregoing to the contrary, no such termination shall relieve any Party of any liability for damages to any other Party resulting from any material
breach of this Agreement occurring prior to such termination. The provisions of this Section 8.2 and Section 5.2(b) and Article 10 shall survive any termination of this Agreement pursuant to Section 8.1.

 ARTICLE 9 
 SURVIVAL; INDEMNIFICATION 
 Section 9.1 Survival.

 (a) The representations and warranties of the Parties under this Agreement, and the covenants, agreements and obligations of
Contributor contained in this Agreement to be performed prior to the Closing Date, shall survive the Closing for a period of fifteen (15) months after the Closing; provided that, the representations and warranties set forth in:

 (i) Sections 3.1 (Organization), 3.2(a) (Authority), 3.4 (Capitalization; Ownership)
and 3.18 (Brokers’ Fees), on the one hand (collectively, the “Contributor Fundamental Representations”), and Sections 4.1 (Organization), 4.2(a) (Authority), 4.6 (Financing), 4.8
(Brokers’ Fees) and 4.9 (Capitalization), on the other hand (collectively, the “Acquirer Fundamental Representations”), shall survive the Closing indefinitely; and 

(ii) Section 3.16 (Taxes) shall survive the Closing until ninety (90) days following the expiration of
the applicable statute of limitations, including any extension thereof, with respect to the particular matter that is the subject matter thereof. 
 (b) The covenants, agreements and obligations of the Parties contained in this Agreement (other than the covenants, agreements and obligations of Contributor contained in

  
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this Agreement to be performed prior to the Closing Date) shall survive the Closing indefinitely. Notwithstanding Section 9.1(a), any breach of representation, warranty or covenant in
respect of which indemnity may be sought under this Agreement shall survive the time at which it would otherwise terminate pursuant to Section 9.1(a), if notice of the inaccuracy or breach thereof giving rise to such right of indemnity
shall have properly been given to the Party against whom such indemnity may be sought prior to the time at which it would otherwise terminate pursuant to Section 9.1(a). 

Section 9.2 Indemnification. 
 (a) Effective after the Closing, subject to the terms and conditions of this Article 9, Contributor hereby indemnifies Acquirer, its Affiliates (including the Company) and their respective
Representatives (collectively, the “Acquirer Indemnified Parties”) against and shall hold each of them harmless from any and all Losses, whether or not including a Third Party Claim, incurred or suffered by any such Acquirer
Indemnified Party based upon, attributable to or resulting from: 
 (i) any inaccuracy in or breach of any
representation or warranty made by Contributor in this Agreement or in any certificate delivered pursuant to Sections 2.2 or 7.2 (provided that, for the sole purpose of determining Losses (and not for determining whether or
not any breaches of representations and warranties of Contributor have occurred), any qualification or exception contained therein relating to materiality (including Material Adverse Effect) shall be disregarded) or any breach of any covenant,
agreement or obligation of Contributor contained in this Agreement to be performed prior to the Closing Date; 

(ii) any breach of any covenant, agreement or obligation of Contributor contained in this Agreement, other than those to
be performed prior to the Closing Date; 
 (iii) any and all environmental liabilities incurred or suffered by
the Company arising from or associated with the Company’s ownership of the Superfund Site; and 
 (iv) any
Pre-Closing Taxes. 
 (b) Notwithstanding Section 9.2(a) above: 

(i) Contributor shall not be liable for any Losses under Section 9.2(a)(i) except to the extent that the
aggregate amount of such Losses equals or exceeds $12,500,000 (the “Basket Amount”), in which case Contributor shall only be liable for the amount of such Losses in excess of the Basket Amount; provided that, the
foregoing limitation shall not apply with respect to any inaccuracy in or breach of any representation or warranty set forth in the Contributor Fundamental Representations, in the last sentence of Section 3.10(d) or in
Section 3.16 (Taxes), or to Fraud on the part of Contributor or any breach of the covenants, agreements or obligations of Contributor set forth in Article 2; 

  
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 (ii) Contributor’s maximum liability for any Losses under
Sections 9.2(a)(i) shall not exceed $175,000,000; provided that, the foregoing limitation shall not apply with respect to any inaccuracy in or breach of any representation or warranty set forth in the Contributor Fundamental
Representations, in the last sentence of Section 3.10(d) or in Section 3.16 (Taxes), or to Fraud on the part of Contributor, and shall not apply to (A) any knowing and intentional breach by Contributor of any of the
covenants, agreements or obligations of Contributor set forth in Article 5 that are to be performed prior to the Closing Date or (B) any breach of any of the covenants, agreements or obligations of Contributor set forth in
Article 2; 
 (iii) Contributor’s maximum liability for any Losses under
Section 9.2(a) shall not exceed the Final Purchase Price (not taking into account any adjustment based on the Indebtedness Amount); provided that, the foregoing limitation shall not apply with respect to Fraud on the part of
Contributor; and 
 (iv) notwithstanding the provisions of Section 9.2(a)(iii), no recovery from
Contributor may be had by Acquirer under Section 9.2(a)(iii) until the Company and Acquirer have first exhausted all legal rights to recovery that the Company or Acquirer have under the Olin Purchase Agreement and under the $25,000,000
environmental insurance policy from Indian Harbor Insurance Company with regard to the Olin site referenced in Schedule 3.17 (the “Environmental Liability Insurance Policy”) to the extent it shall have been
assigned by Contributor to the Company prior to the Closing (it being understood and agreed that claims for indemnification by Acquirer under or pursuant to Section 9.2(a)(iii) shall not be in excess of $25,000,000 in the aggregate and
must be made in writing prior to the currently designated expiration of the Environmental Liability Insurance Policy); provided that, any claim for indemnification made prior to such expiration shall survive until thirtieth (30th) day
after the Company and Acquirer shall have exhausted the remedies described in the foregoing part of this clause (iv). 
 (c) Effective after the Closing, subject to the terms and conditions of this Article 9, Acquirer hereby indemnifies Contributor, its Affiliates and their respective Representatives
(collectively, the “Contributor Indemnified Parties”) against and shall hold each of them harmless from any and all Losses incurred or suffered by any such Contributor Indemnified Party based upon, attributable to or
resulting from: 
 (i) any inaccuracy in or breach of any representation or warranty made by Acquirer in this
Agreement or in any certificate delivered pursuant to Sections 2.2 or 7.3 (provided that, for the sole purpose of determining Losses (and not for determining whether or not any breaches of representations and warranties of
Acquirer have occurred), any qualification or exception contained therein relating to materiality shall be disregarded); and 

  
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 (ii) any breach of any covenant, agreement or obligation of Acquirer
contained in this Agreement. 
 (d) Notwithstanding Section 9.2(c) above, Acquirer’s maximum liability for any
Loss under Section 9.2(c)(i) shall not exceed $60,000,000; provided that, the foregoing limitation shall not apply with respect to (i) any breach of the covenants, agreements or obligations of Acquirer set forth in
Article 2, (ii) any inaccuracy in or breach of any representation or warranty set forth in the Acquirer Fundamental Representations or (iii) Fraud on the part of Acquirer. 

(e) All Losses for which any Acquirer Indemnified Party is entitled to indemnity or reimbursement under Article 6 or
Section 9.2(a) shall be paid by Contributor, in its discretion, (x) in cash or (y) by the delivery of WPZ Units or (z) in the case of claims made against the Escrow Account, by delivery of all or a portion of the Escrow
Property held by the Escrow Agent as provided in this Section 9.2(e). “Escrow Period” means the period commencing on the Closing Date and ending on the date that is fifteen (15) months thereafter; provided
that, such period shall be extended as provided in the Escrow Agreement with respect to any claim for indemnity or reimbursement made by an Acquirer Indemnified Party pursuant to Section 9.3 or 9.4 on or prior to the date that
is fifteen (15) months after the Closing Date. 
 (i) If the Closing occurs, for any indemnification claims
under Section 9.2(a)(i), the Escrow Property shall be the Acquirer Indemnified Parties’ sole and exclusive security and source of consideration and recovery, and the transfer of Escrow Units or payment of cash from the Escrow
Account shall be the Acquirer Indemnified Parties’ sole and exclusive remedy therefor; provided that, the limitation in this Section 9.2(e)(i) shall not apply with respect to any inaccuracy in or breach of any representation
or warranty set forth in the Contributor Fundamental Representations, in the last sentence of Section 3.10(d) or in Section 3.16 (Taxes) or to any knowing and intentional breach by Contributor of any of the covenants,
agreements or obligations of Contributor set forth in Article 5 that are to be performed prior to the Closing Date or any breach of any of the covenants, agreements or obligations of Contributor set forth in Article 2.
Acquirer Indemnified Parties shall not be limited to the Escrow Property for indemnification claims based on (A) Fraud on the part of Contributor, (B) Sections 9.2(a)(ii), 9.2(a)(iii) or 9.2(a)(iv), or
(C) matters described in the proviso of the immediately preceding sentence, and they shall have the right to seek indemnification directly against Contributor without first exhausting the Escrow Property or seeking indemnification against the
Escrow Account; provided that, Contributor may, in its sole discretion, satisfy any such indemnification claims by paying cash or delivering WPZ Units (other than the Escrow Units) to Acquirer in satisfaction of any such claim. 

(ii) In the event that Contributor satisfies its indemnification obligation hereunder (or a portion thereof) by the
delivery of Escrow Units or other WPZ Units (instead of cash), the number of such Escrow Units or other WPZ Units to be delivered to Acquirer shall be based on the quotient of (x) the aggregate dollar amount payable to the Acquirer Indemnified
Party, divided by (y) the price equal to the volume-weighted average trading price of WPZ Units for the thirty (30) trading day period ending two (2) trading days prior to the date of payment. 

  
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 (iii) Concurrently with providing notice of indemnity to Contributor under
Section 9.3 or 9.4, during the Escrow Period, Acquirer also will provide written notice to the Escrow Agent of a claim for Losses or reimbursement under Sections 9.2(a)(i). Upon receipt of any such written claim
notice, the Escrow Agent shall transfer a portion of the Escrow Property (either Escrow Units or cash, at the discretion of Contributor, based on the availability of Escrow Units and cash in the Escrow Account) to a Pending Claims Account (as
defined in the Escrow Agreement) in an amount equal to the amount of Losses set forth in such written claim notice. 
 (iv) Upon the expiration of the Escrow Period, Contributor shall be entitled to a transfer of (A) any Escrow Units that are not held by the Escrow Agent in Pending Claims Accounts under the Escrow
Agreement (the “Released Units”) and (B) any cash in the Escrow Account that is not held by the Escrow Agent in Pending Claims Accounts under the Escrow Agreement, in each case in accordance with the terms of the Escrow
Agreement. 
 (v) At any time, the Parties may jointly instruct, in the manner provided in the Escrow Agreement,
the Escrow Agent to transfer all or a portion of the Escrow Property to either Contributor or Acquirer, as the Parties may agree. 
 (vi) Any Escrow Units to be transferred to Acquirer from the Escrow Agent on behalf of any Acquirer Indemnified Party or other WPZ Units to be transferred to Acquirer by Contributor to satisfy an
indemnification claim shall be accompanied by a fully executed stock power or other applicable assignment instrument in the form reasonably acceptable to Acquirer and Contributor. 

(vii) Notwithstanding any provision contained in this Agreement or any of the other Transaction Documents, any dividends
or other distributions made in respect of the Escrow Units (whether made in cash or equity securities and whether held in the Escrow Account or the Pending Claims Account) shall be paid (or issued) to Contributor, and all voting rights associated
with the Escrow Units shall be exercised by Contributor. 
 Section 9.3 Third-Party Claim Procedures.

 (a) The Party seeking indemnification under Section 9.2 (the “Indemnified Party”) agrees
to give prompt notice in writing to the Party against whom indemnity is to be sought (the “Indemnifying Party”) of the assertion of any claim or the commencement of any suit, action or proceeding by any Third Party
(“Third-Party Claim”) in respect of which indemnity may be sought under Section 9.2. Such notice shall set forth in reasonable detail such Third-Party Claim and the basis for indemnification (taking into account
the information then available to the Indemnified Party) and, to the extent practicable, an estimate of Losses. So long as the notice thereof is given within the applicable survival period set forth in Section 9.1, the failure to so
notify the Indemnifying Party shall not relieve the Indemnifying Party of its obligations or liability hereunder, except to the extent such failure shall have actually prejudiced the Indemnifying Party. Thereafter, the Indemnified Party shall
deliver to the Indemnifying Party, promptly after the Indemnified Party’s receipt thereof, copies of all notices and documents (including court papers) received by the Indemnified Party relating to the Third-Party Claim. 

  
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 (b) The Indemnifying Party shall be entitled to reasonable participation in the defense of
any Third-Party Claim at its own cost. If the Indemnifying Party acknowledges in writing its obligation to indemnify the Indemnified Party against the Losses set forth in the Indemnified Party’s indemnification notice, the Indemnifying Party
shall be entitled to assume the defense thereof with counsel selected by the Indemnifying Party reasonably satisfactory to the Indemnified Party. Notwithstanding the foregoing, the Indemnifying Party shall continue to be entitled to assert any
limitation of any claims contained in this Article 9. 
 (c) If the Indemnifying Party elects to assume the defense
of any such Third-Party Claim pursuant to Section 9.3(b), it shall, within thirty (30) days after receiving the Indemnified Party’s indemnification notice, notify the Indemnified Party in writing of its intent to do so and the
Indemnifying Party shall not be liable to the Indemnified Party for legal expenses subsequently incurred by the Indemnified Party in connection with the defense thereof, except as otherwise provided below. The Indemnifying Party shall have the right
to assume control of such defense of the Third-Party Claim only for so long as it conducts such defense with diligence. The Indemnifying Party shall keep the Indemnified Parties advised of the status of such Third-Party Claim and the defense thereof
on a reasonably current basis and shall consider in good faith the recommendations made by the Indemnified Parties with respect thereto. If the Indemnifying Party assumes the control of the defense of any Third-Party Claim in accordance with the
provisions of this Section 9.3, the Indemnified Party shall be entitled to participate in the defense of any such Third-Party Claim and to employ, at its expense, separate counsel of its choice for such purpose, it being understood,
however, that the Indemnifying Party shall continue to control such defense; provided that, notwithstanding the foregoing, the Indemnifying Party shall pay the reasonable costs and expenses of such defense (including reasonable
attorneys’ fees and expenses) of the Indemnified Party if (i) the Indemnified Party’s outside counsel shall have reasonably concluded and advised in writing (with a copy to the Indemnifying Party) that there are defenses available to
such Indemnified Party that are different from or additional to those available to the Indemnifying Party or (ii) the Indemnified Party’s outside counsel shall have advised in writing (with a copy to the Indemnifying Party) that there is a
conflict of interest that would make it inappropriate under applicable standards of professional conduct to have common counsel for the Indemnifying Party and the Indemnified Party. Notwithstanding anything to the contrary in this Agreement, the
Indemnifying Party shall not be permitted to settle, compromise, take any corrective or remedial action or enter into an agreed judgment or consent decree, in each case, that subjects the Indemnified Party to any criminal liability, requires an
admission of guilt or wrongdoing on the part of the Indemnified Party or imposes any continuing obligation on or requires any payment from the Indemnified Party without the Indemnified Party’s prior written consent, such consent not to be
unreasonably withheld, conditioned or delayed. 
 (d) Each Party shall reasonably cooperate, and cause their respective
Affiliates to reasonably cooperate, in the defense or prosecution of any Third-Party Claim and shall furnish or cause to be furnished such records, information and testimony, and attend such conferences, discovery proceedings, hearings, trials or
appeals, as may be reasonably requested in connection therewith. 

  
 65 

 Section 9.4 Direct Claim Procedures. 

If the Indemnified Party has a claim for indemnity under Section 9.2 against the Indemnifying Party that does not involve a
Third-Party Claim, the Indemnified Party agrees to give prompt notice in writing of such claim to the Indemnifying Party. Such notice shall set forth in reasonable detail such claim and the basis for indemnification (taking into account the
information then available to the Indemnified Party) and, to the extent practicable, an estimate of Losses. So long as the notice thereof is given within the applicable survival period set forth in Section 9.1, the failure to so notify
the Indemnifying Party shall not relieve the Indemnifying Party of its obligations hereunder, except to the extent such failure shall have actually prejudiced the Indemnifying Party. 

Section 9.5 Calculation of Losses. 
 (a) The amount of any Losses payable under Section 9.2 by the Indemnifying Party shall be net of any amounts actually recovered by the Indemnified Party under applicable insurance policies or
from any other Person alleged to be responsible therefor, less reasonable costs or expenses incurred by the Indemnifying Party in obtaining such recovery. If the Indemnified Party receives any amounts under applicable insurance policies, or
from any other Person alleged to be responsible for any Losses, subsequent to an indemnification payment by the Indemnifying Party, then the Indemnified Party shall promptly reimburse the Indemnifying Party for any payment made or expense incurred
by the Indemnifying Party in connection with providing such indemnification payment up to the amount actually received by the Indemnified Party (less (i) the aggregate amount of applicable Losses incurred or suffered by the Indemnified
Party for which Indemnifying Party did not indemnify the Indemnified Party (it being understood and agreed that, for purposes of this clause, any amount of Losses set off against the Basket Amount shall be deemed to have been paid by the
Indemnifying Party to the Indemnified Party) and (ii) any reasonable cost or expense incurred by the Indemnified Party in obtaining such recovery). 
 (b) The Indemnifying Party shall not be liable under Section 9.2 for any punitive or exemplary Losses, except to the extent the Indemnified Party is required to pay any amounts to any Third
Party for such Losses in regard to a matter that is otherwise indemnifiable hereunder. In addition, notwithstanding anything herein to the contrary, Losses indemnifiable by Contributor under Section 9.2(a) shall expressly exclude any and
all diminution in value of any Person other than the Company (or its successor), including any decrease in the value or price of WPZ Units. 
 (c) Contributor shall have no obligation to indemnify Acquirer or its Affiliates pursuant to Section 9.2 with respect to any Losses or alleged Losses to the extent that the matter forming the
basis for such Losses or alleged Losses was taken into account in the determination of Final Purchase Price Adjustment Amount. 

(d) Any indemnity payment under this Agreement shall be treated as an adjustment to the Final Purchase Price for Tax purposes.

  
 66 

 Section 9.6 Exclusivity. 

Except for equitable remedies and such other remedies expressly provided for in this Agreement, including those provided in
Sections 2.3 and 10.12, after the Closing, this Article 9 will provide the exclusive remedy for each Party for any and all claims relating to this Agreement or the sale and purchase of the Company, including any
misrepresentation, breach of warranty, covenant or other agreement or other claim arising out of this Agreement or the transactions contemplated hereby (other than equitable remedies as they relate to breaches of covenants or other agreements
contained herein to the extent such covenants or agreements are to be performed after the Closing), regardless of applicable Law or the legal theory under which such liability or obligation may be sought to be imposed, whether sounding in contract
or tort, or whether at law or in equity or otherwise. Notwithstanding the foregoing, nothing herein shall preclude any Party from asserting a claim (a) of Fraud or (b) arising under any Transaction Document other than this Agreement

 Section 9.7 Non-Recourse. 
 No Party shall have recourse whatsoever under this Agreement against any of the Representatives of the other Parties (including for such purposes, the Representatives of any Affiliate of a Party). Without
limiting the generality of the foregoing, Acquirer, on behalf of itself and its Affiliates, and Contributor, on behalf of itself and its Affiliates, each hereby fully and irrevocably waive any right, claim or entitlement whatsoever against such
Representatives relating to any and all Losses suffered or incurred by any of them arising from, based upon, related to, or associated with this Agreement or the transactions contemplated by this Agreement (including any breach, termination or
failure to consummate such transactions) in each case whether based on contract, tort, strict liability other laws or otherwise and whether by piercing of the corporate veil, by claim on behalf of or by a Party or other Person or otherwise.

 ARTICLE 10 
 MISCELLANEOUS 
 Section 10.1 Notices. 

All notices, requests and other communications to any Party pursuant to this Agreement shall be in writing (including facsimile
transmission) and shall be given, 
 if to Acquirer, to: 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, OK 74172-0172 

Attention: Senior Vice President, Corporate Strategic Development 

Facsimile: (918) 573-4900 

  
 67 

 with copies (which shall not constitute notice) to: 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, OK 74172-0172 

Attention: General Counsel 
 Facsimile: (918) 573-5942 
 and: 

Gibson, Dunn & Crutcher LLP 

1801 California Street 
 Suite 4200 
 Denver, CO 80202 

Attention: Steven Talley 
 Facsimile: (303) 298-5907 
 if to Contributor, to: 

Caiman Energy, LLC 
 5949 Sherry Lane, Suite 1300 
 Dallas, TX 75225 

Attention: Tony Strehlow 
 Facsimile: (214) 580-3750 
 with a copy (which shall not constitute notice)
to: 
 Vinson & Elkins LLP 

1001 Fannin St., Suite 2500 
 Houston, TX 77002-6760 
 Attention: Douglas E. McWilliams

 Facsimile: (713) 615-5725 
 or such other address or facsimile number as such Party may hereafter specify in writing for the purpose by notice to the other Parties. All such notices, requests and other communications shall be deemed
duly given when delivered personally (including by courier or overnight courier with confirmation), via facsimile (with confirmation) or delivered by an overnight courier (with confirmation), if, in any such case, confirmation is obtained prior to
5:00 p.m. local time in the place of receipt and such day is a Business Day. Otherwise, any such notice, request or communication shall be deemed not to have been received until the next succeeding Business Day. 

  
 68 

 Section 10.2 Amendments and Waivers. 

(a) Any provision of this Agreement may be amended or waived if, but only if, such amendment or waiver is in writing and is signed, in
the case of an amendment, by each Party to this Agreement, or in the case of a waiver, by the Party against whom the waiver is to be effective. 
 (b) No failure or delay by any Party in exercising any right, power or privilege in connection with this Agreement shall operate as a waiver thereof nor shall any single or partial exercise thereof
preclude any other or further exercise thereof or the exercise of any other right, power or privilege. Except as otherwise provided herein, the rights and remedies provided in this Agreement shall be cumulative and not exclusive of any rights or
remedies provided by Law. 
 Section 10.3 Expenses. 

Except as otherwise provided herein, all costs and expenses incurred in connection with this Agreement shall be paid by the Party
incurring such cost or expense; provided, however, that Acquirer shall pay all fees and expenses with respect to any filing made pursuant to the HSR Act (which, for the avoidance of doubt, shall not include any fees or expenses incurred by
Contributor or its Affiliates relating to the preparation of such filing). 
 Section 10.4 Successors and
Assigns; Assignment. 
 The provisions of this Agreement shall be binding upon and inure to the benefit of the Parties
and their respective successors and permitted assigns; provided that, no Party may assign, delegate or otherwise transfer any of its rights or obligations under this Agreement without the consent of each other Party; provided further,
that this proviso and Sections 10.6(b) and 10.7(b) shall inure to the benefit of the Debt Financing Sources. Notwithstanding the foregoing, Acquirer may assign any of its rights and obligations hereunder to an Affiliate of
Acquirer as long as Acquirer remains primarily liable for all of its obligations hereunder. 
 Section 10.5
Governing Law. 
 This Agreement shall be governed by and construed in accordance with the law of the State of
Texas, without regard to the conflicts of law rules thereof. 
 Section 10.6 Consent to Jurisdiction.

 (a) The Parties agree that any suit, action or proceeding seeking to enforce any provision of, or based on any matter arising
out of or in connection with, this Agreement or the transactions contemplated hereby shall be brought in the United States District Court for the Northern District of Texas or any Texas State court sitting in Dallas, Texas, so long as one of such
courts shall have subject matter jurisdiction over such suit, action or proceeding, and that any cause of action arising out of this Agreement shall be deemed to have arisen from a 

  
 69 

 
transaction of business in the State of Texas, and each Party hereby irrevocably consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit,
action or proceeding and irrevocably waives, to the fullest extent permitted by Law, any objection that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding in any such court or that any such suit, action or
proceeding brought in any such court has been brought in an inconvenient forum. Process in any such suit, action or proceeding may be served on any Party anywhere in the world, whether within or without the jurisdiction of any such court. Without
limiting the foregoing, each Party agrees that service of process on such Party as provided in Section 10.1 shall be deemed effective service of process on such Party. 

(b) Notwithstanding anything herein to the contrary, each of the Parties hereto agrees (i) that it will not, and it will not permit
any of its Affiliates to, bring or support anyone else in bringing any action, cause of action, claim, cross-claim or third party claim of any kind or description, whether in law or in equity, whether in contract or in tort or otherwise, against the
Debt Financing Sources in any way relating to this Agreement or any of the transactions contemplated hereby in any forum other than any New York State court or federal court sitting in the City of New York in the Borough of Manhattan (and any
appellate courts thereof) and (ii) to waive and hereby waive any right to trial by jury in respect of any suit, action or proceeding against any Debt Financing Source. 
 Section 10.7 Counterparts; Effectiveness; Third-Party Beneficiaries. 
 (a) This Agreement may be signed in any number of counterparts (including facsimile and electronic transmission counterparts), each of which shall be an original, with the same effect as if the signatures
to this Agreement were upon the same instrument. This Agreement shall become effective when each Party shall have received a counterpart of this Agreement signed by the other Parties. Until and unless each Party has received a counterpart of this
Agreement signed by the other Parties, this Agreement shall have no effect and no Party shall have any right or obligation under this Agreement (whether by virtue of any other oral or written agreement or other communication). 

(b) Except as provided in Article 9, no provision of this Agreement is intended to confer any rights, benefits, remedies,
obligations, or liabilities upon any Person other than the Parties and their respective successors and permitted assigns; provided that, notwithstanding any provision to the contrary contained in this Agreement, the Parties expressly
acknowledge and agree that the Debt Financing Sources are express third party beneficiaries of, and may enforce as such the provisions of the last proviso in the first sentence of Section 10.4 and Sections 10.6(b) and
10.7(b) of this Agreement. 
 Section 10.8 Notification of Certain Matters. 

Each Party shall give prompt notice to each other Party upon acquiring Knowledge of Contributor or Knowledge of Acquirer, as the case may
be, of (a) the occurrence or nonoccurrence of any event which such Party has determined after obtaining knowledge thereof would be reasonably likely to cause any representation or warranty made by such Party

  
 70 

 
contained in this Agreement to be untrue or inaccurate in any material respect and (b) any failure, or the occurrence of nonoccurrence of any event of which such Party has determined after
obtaining knowledge thereof would be reasonably likely to cause the failure, by such Party to comply with or satisfy, in any material respect, any covenant, condition or agreement to be complied with or satisfied by it hereunder; provided,
however, that the delivery of any notice pursuant to this Section 10.8 shall not limit or otherwise affect the remedies available to the Parties hereunder. 
 Section 10.9 Entire Agreement. 
 This Agreement, the
other Transaction Documents and the Confidentiality Agreement (and all exhibits and schedules hereto and thereto) constitute the entire agreement among the Parties with respect to the subject matter of this Agreement and supersedes all prior
agreements and understandings, both oral and written, among the Parties with respect to the subject matter of this Agreement. 

Section 10.10 Severability. 
 If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction or other Governmental Authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in full force and effect and shall in no way be affected, impaired or invalidated so long as the economic or legal substance of the transactions contemplated by this
Agreement is not affected in any manner materially adverse to any Party. Upon such a determination, the Parties shall negotiate in good faith to modify this Agreement so as to effect the original intent of the Parties as closely as possible in an
acceptable manner in order that the transactions contemplated by this Agreement be consummated as originally contemplated to the fullest extent possible. 
 Section 10.11 Disclosure Schedules. 
 Contributor has
set forth information on the Disclosure Schedules that correspond to the sections of this Agreement to which each such Schedule relates. A matter set forth in one section of the Disclosure Schedules need not be set forth in any other section so
long as its relevance to such other section of the Disclosure Schedules or section of this Agreement is reasonably apparent. The Parties acknowledge and agree that (a) the Disclosure Schedules may include certain items and information solely
for informational purposes for the convenience of Acquirer and (b) the disclosure by Contributor of any matter in the Disclosure Schedules shall not be deemed to constitute an acknowledgment by Contributor that the matter is required to be
disclosed by the terms of this Agreement or that the matter is material. 
 Section 10.12 Specific
Performance. 
 The Parties agree that irreparable damage for which monetary damages, even if available, would not be an
adequate remedy, would occur if any provision of this Agreement were not performed in accordance with the terms of this Agreement (including failing to take such actions as are required under this Agreement in order to consummate the transactions
contemplated by this Agreement) and that the Parties shall be entitled to an injunction or injunctions, specific performance and other equitable relief to prevent breaches (or threatened breaches) of this

  
 71 

 
Agreement and to enforce specifically the performance of the terms and provisions of this Agreement, this being in addition to any other remedy to which they are entitled at law or in equity. Any
Party seeking an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions of this Agreement shall not be required to provide any bond or other security in connection with any such order or
injunction. If, prior to the Outside Date, any Party brings any action to enforce specifically the performance of the terms and provisions of this Agreement by any other Party, the Outside Date shall automatically be extended by (a) the amount
of time during which such action is pending, plus twenty (20) Business Days, or (b) such other time period established by the court presiding over such action. 

Section 10.13 Waiver of Conflicts; Attorney Client Privilege. 

(a) Acquirer waives and will not assert, and Acquirer agrees to cause its Affiliates (including the Company) to waive and not to assert,
any conflict of interest arising out of or relating to the representation, after the Closing (the “Post-Closing Representation”), of Contributor or any of its Affiliates or any present or former shareholder, officer,
employee, manager or director of Contributor or any of its Affiliates (any such Person, a “Designated Person”) in any matter involving this Agreement or any other agreements or transactions contemplated hereby, by any legal
counsel currently representing Contributor or any of its Affiliates in connection with this Agreement or any other agreements or transactions contemplated by this Agreement (the “Current Representation”). 

(b) Acquirer waives and will not assert, and Acquirer agrees to cause its Affiliates (including the Company) to waive and not assert, any
attorney client privilege with respect to any communication between any legal counsel and any Designated Person occurring during the Current Representation in connection with any Post-Closing Representation, including in connection with a dispute
with Acquirer or any of its Affiliates, it being the intention of the Parties that all such rights to such attorney client privilege and to control such attorney client privilege shall be retained by Contributor; provided that, the foregoing
waiver and acknowledgement of retention shall not extend to any communication not involving this Agreement or any other agreements or transactions contemplated thereby, or to communications with any Person other than the Designated Persons.

 Section 10.14 No Presumption Against Drafting Party. 

Each Party has fully participated in the negotiation and drafting of this Agreement. If an ambiguity, question or intent or question of
interpretation arises, this Agreement must be construed as if drafted jointly, and there must not be any presumption, inference or conclusion drawn against any Party by virtue of the fact that its Representative has authored this Agreement or any
portion hereof. 
 Section 10.15 Mediation. 

Notwithstanding any other provision of this Agreement, the Parties agree that no formal dispute resolution procedure with respect to any
dispute (including any claim for indemnification, but excluding the matters covered by Section 2.3) between the Parties (a 

  
 72 

 
“Dispute”) may be commenced unless the Parties have fully complied with the dispute resolution procedures set forth in this Section 10.15. In the event that a
Dispute arises among the Parties and such Dispute cannot be resolved by the personnel directly involved, such Dispute shall be submitted to non-binding mediation as set forth hereinbelow. Either Party may commence such mediation proceeding by
providing to the other Party a written request for mediation. Thereupon, the Parties shall be obligated to engage in mediation. The Parties shall, in good faith, mutually agree, within ten (10) Business Days after delivery of the written
request, to a Third Party mediator who is available to begin mediating such Dispute within twenty (20) Business Days after delivery of the written request. If such Dispute is not resolved within twenty (20) Business Days after such
mediation has begun, either Party may terminate the mediation proceedings by written notice to the other Party. 

  
 73 

 IN WITNESS WHEREOF, the Parties have caused this Agreement to be duly executed by their
respective authorized officers as of the date first written above. 
  

			
	CAIMAN ENERGY, LLC
		
	By:	 	/s/ Jack M. Lafield
	Name:	 	Jack M. Lafield
	Title:	 	President and Chief Executive Officer

  

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	Williams Partners GP LLC,
		 	its General Partner

 
					
			
		 	By:	 	/s/ Donald R. Chappel
		 	Name:	 	Donald R. Chappel
		 	Title:	 	Chief Financial Officer and Treasurer

 [SIGNATURE PAGE TO CONTRIBUTION AGREEMENT] 

 SCHEDULES TO 
 CONTRIBUTION AGREEMENT 
 BETWEEN 

CAIMAN ENERGY, LLC 
 AND 
 WILLIAMS PARTNERS L.P. 

DATED AS OF MARCH 19, 2012 

 This document and any attachments hereto (these “Disclosure
Schedules”) have been prepared in connection with, and are deemed a part of, that certain Contribution Agreement, dated as of March 19, 2012 by and between Caiman Energy, LLC, a Delaware limited liability company
(“Contributor”), and Williams Partners L.P., a Delaware limited partnership (the “Contribution Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings
ascribed to such terms in the Contribution Agreement. These Disclosure Schedules are provided in accordance with the terms and subject to the conditions of the Contribution Agreement and shall constitute a part of the Contribution Agreement.

 The information provided in these Disclosure Schedules is being provided solely for the purpose of making disclosures under
the Contribution Agreement. 
 Matters reflected in these Disclosure Schedules are not necessarily limited to matters required
by the Contribution Agreement to be reflected herein. Such additional matters are set forth for information purposes. The inclusion of any specific item in these Disclosure Schedules is not intended to imply that such item is or is not material
(including whether such item would be reasonably likely to, individually or in the aggregate, result in a Material Adverse Effect), and no party shall use the inclusion of any such item in any dispute or controversy as to whether any obligation,
items or matter not included in a Schedule is or is not material for purposes of the Contribution Agreement. No disclosure in these Disclosure Schedules relating to any claim, action, lawsuit or proceeding, shall be construed as an admission of any
liability or obligation of the Contributor to any third Person and no disclosure in these Disclosure Schedules relating to any possible breach or violation of any Contract, Law or regulation shall be construed as an admission or indication that any
such breach or violation exists or has actually occurred. 
 Disclosure of any fact or item in these Disclosure Schedules
referenced by a particular Schedule in the Contribution Agreement need not be set forth in any other section so long as the relevance of such fact or item to such other section of the Disclosure Schedules is reasonably apparent on its face.

 Headings of sections are inserted for convenience of reference only and shall not be deemed a part of or to affect the
meaning or interpretation of the Contribution Agreement. 

 Schedule Index 

 

			
	Schedule 1.1(a)	  	Pre-Approved Capital Expenditures
	Schedule 1.1(b)	  	Scheduled Debt
	Schedule 2.3	  	Accounting Methodology
	Schedule 2.4	  	Purchase Price Allocation
	Schedule 3.3(b)	  	Consents and Other Actions
	Schedule 3.3(c)	  	Consents and Approvals
	Schedule 3.6	  	Absence of Certain Changes
	Schedule 3.7	  	Material Liabilities
	Schedule 3.8(a)	  	Material Contracts
	Schedule 3.8(b)	  	Material Breaches, Terminations and Releases
	Schedule 3.9	  	Litigation
	Schedule 3.10(a)	  	Compliance with Laws
	Schedule 3.10(b)	  	Permits
	Schedule 3.11(a)	  	Properties and Liens
	Schedule 3.11(b)	  	Third Party Agreements
	Schedule 3.11(c)	  	Rights-of-Way
	Schedule 3.12	  	Intellectual Property
	Schedule 3.13(a)	  	Environmental Matters
	Schedule 3.14(b)	  	Employees
	Schedule 3.14(c)	  	Rights to Terminate Employment
	Schedule 3.15	  	Benefit Plans
	Schedule 3.16	  	Taxes
	Schedule 3.17	  	Insurance
	Schedule 3.19	  	Sufficiency of Assets
	Schedule 3.20	  	Related-Party Transactions
	Schedule 3.21	  	Bank Accounts; Powers of Attorney
	Schedule 5.1(a)	  	Conduct and Operations (General)
	Schedule 5.1(b)	  	Conduct and Operations (Specific)
	Schedule 5.5(i)	  	Further Assurances
	Schedule 5.5(ii)	  	Further Assurances
	Schedule 5.7	  	Surety Bonds
	Schedule 5.9	  	Related-Party Transactions
	Schedule 7.2(f)	  	Consents

 SCHEDULE 1.1(a) 

PRE-APPROVED CAPITAL EXPENDITURES 
  

			
	Active AFEs	  	 
	AFE#	  	Name
	210101	  	Ft. Beeler Pipeline System
	210104	  	Ft Beeler PL—Ph 1 Extension
	210105	  	NGL Fractionator
	210108	  	12” SW Marshall Extension
	210109	  	Condensate Gath. System—Ph 1
	210111	  	Ft Beeler Cryo I Plant (120)
	210114	  	NGL PIpeline
	210115	  	6” McClain Lateral (TE)
	210116	  	12” Lateral to Grenadier
	210117	  	24” to DAC/Grenadier
	210118	  	6” Groves Extension (TE)
	210141	  	24” to TE Wetzel
	210150	  	Ft Beeler Cryo II Plant (200)
	210151	  	12” Extension to Wetzel Cty.
	210152	  	12” Lucey Extension (TE)
	210153	  	6” Keaton Extension (TE)
	210154	  	6” Hazlett Lat-Bardall N. (AB)
	210155	  	Condensate—Hazlett Lateral
	210156	  	Condensate—Crow Lateral
	210157	  	Condensate—Ext to Nice-Potts
	210159	  	6” Siburt Well Connect (AB)
	210163	  	6” Cunningham Lateral
	210164	  	6” Hunter Pethtel
	210165	  	8” Goshorn Ridge
	210168	  	Kittle
	210169	  	6” Longworth 1H
	210170	  	16” Connor Lateral
	210171	  	Compression—Flash Gas
	210172	  	12” YoHo Lateral
	210175	  	Ft Beeler Cryo III Plant (200)
	210177	  	Condensate—Longworth
	210178	  	Condensate—Cunningham
	210181	  	Condensate—Hunter Pethtel
	210182	  	TE—Woodruff #1H
	210184	  	Whipkey 3H (TE)

  
 Schedule
1.1(a) 
 1 

			
	Active AFEs	  	 
	AFE#	  	Name
	210186	  	16” Ext. to Moundsville Frac.
	210188	  	Maury: Wetzel Co- Stone Energy
	210190	  	16” Monroe County Extension
	210191	  	4” Cond Ext to YoHo Tie-In
	210193	  	8” Ethane Line
	210194	  	24” Utica Extension
	210195	  	Ft Beeler Cryo IV Plant (200)
	210196	  	12” Wetzel County Loop
	210198	  	Tyler County Ext (Petro-Edge)
	210199	  	Marshall County Upgrades
	210200	  	Ft Beeler Plant Bypass
	210201	  	Corley Expansion
	210202	  	Moundsville Fractionator II
	210203	  	Victory Expansion
	210204	  	CEM Condensate Improvements
	210205	  	Automated Pig Launchers
	210206	  	Chesapeake Infield Gathering
	210207	  	Condensate System Upgrade
	210208	  	Corley Condensate
	700011	  	Longwall Mitigation Maint.
	70001G	  	Condensate—Corley Coriolis
	70001G	  	Condensate—Nice Coriolis
	70001H	  	Snyder Slip-Launch/Rec Relo.
	70001G	  	Rose/Channing Launcher
	70001G	  	Condensate—Hunter Pethel Cor
	70001G	  	Condensate System Modification
	70001H	  	Slip Repairs
	70001I	  	Crow Equipment Removal
	70001J	  	McLain Equipment Removal
	70001K	  	Siburt Equipment Removal
	70001L	  	Snyder Equipment Removal

  
 Schedule
1.1(a) 
 2 

 Modeled Projects (not pursued in Q1) 

 

			
	 
	AFE#	  	Name
	Unassigned	  	CHK Panhandle
	Unassigned	  	Stone Condensate
	210179	  	
	Unassigned	  	Chevron Laterals
	210192	  	
	Unassigned	  	Rich System Compression
	210167	  	
	Unassigned	  	Pumps Station
	210176	  	
	210112	  	
	210134	  	
	210126	  	
	210128	  	
	210129	  	
	210173	  	
	210185	  	
	210197	  	
	210162	  	
	210187	  	
	920001	  	
		
	21050A	  	Powerline
	Unassigned	  	TE Laterals
	Unassigned	  	PetroEdge

  
 Schedule
1.1(a) 
 3 

 Updated Q1 AFE Spending 

 

			
	AFE#	  	Name
	210151	  	12” Extension to Wetzel Cty.
	210172	  	12” YoHo Lateral—Supplement
	210202	  	Moundsville Fractionator II
	210207	  	Condensate System Upgrade
	210204	  	CEM Condensate Improvement
	210201	  	Corley Expansion
	210208	  	Corley Condensate
	210205	  	Automated Pig Launchers
	210206	  	Chesapeake Infield Gathering
	210203	  	Victory Expansion

 Designated AFEs (from above) 
  

			
	AFE#	  	Name
	210150	  	Ft Beeler Cryo II Plant (200)
	210182	  	TE—Woodruff #1H
	210198	  	Tyler County Ext (Petro-Edge)

  
 Schedule
1.1(a) 
 4 

 SCHEDULE 1.1(b) 

SCHEDULED DEBT 
  

	1.	Revolving credit facility under that certain Credit Agreement among Caiman Energy, LLC, each lender from time to time party thereto and Bank of America, N.A. dated
March 31, 2011, not amended. 

  

	2.	Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman Eastern Midstream, LLC dated September 14, 2011, including that
Equipment Schedule dated February 29, 2012 and that Addendum to Equipment Schedule dated February 29, 2012, as amended by that Addendum to Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman
Eastern Midstream, LLC dated June 23, 2011, and further amended by that Lessee’s Option to Purchase Equipment dated February 29, 2012. 

  

	3.	Intercompany Loan Agreement between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated December 31, 2011. 

  
 Schedule
1.1(b) 
 5 

 SCHEDULE 2.3 
 ACCOUNTING METHODOLOGY 
 The Company will provide the “Estimated
Closing Date Balance Sheet”, “Estimated Net Working Capital”, the “Estimated Pre-Closing Capital Expenditures Amount” and the
“Estimated Purchase Price Adjustment Amount” as specified below. 
  

	A.	Estimated Closing Date Balance Sheet—will contain the following classifications, derived and supported in such a manner as defined herein, all of
which will be supported by sufficient general ledger detail and supporting documentation for review and confirmation: 

  

	 	1.	Cash & Cash Equivalents—there will be no balances to report as these elements are maintained by an Affiliate. The Company does not have any bank accounts.

  

	 	2.	Accounts Receivable (“A/R”)—the following components are maintained in the Company’s A/R account and will be derived and documented in the following
manner: 

  

	 	a)	Revenue—will be based on invoiced (actuals) and uncollected revenues, to the extent they exist, as well as accrued revenues for the current month of business. The
accrual will be based on the Company’s accrual model results for the month in which the closing occurs. Principally, the model calculates the accrual based on forecasted volumes and actual contracted rates/fees for the month. The amount of the
accrual will be proportionally adjusted based on available scada volumes for the days of flow and projected forward to the Closing Date. 

  

	 	b)	Billing for Aid-In-Construct – are recorded as invoiced to the customer. The balance in this account will be supported by invoices presented to the customer and
any offsetting receipts. 

  

	 	c)	Imbalance—gas and liquid imbalances are calculated and supported by the Company’s monthly allocation and invoice for each particular system or plant. Company
will use the imbalance from the most recently submitted invoice. 

  

	 	d)	Volume Commitment—relates to a minimum flow requirement on a particular contract. Company will use the value carried on the most recently submitted invoice.

  

	 	e)	Other—any other receivables will be supported by appropriate documentation. 

 

	 	3.	Prepaid Expenses (“Prepaids”)—are characterized as distinguished below. 

 

	 	a)	Cash/Surety Bond—balances will be supported by either a cash receipt if they are cash bonds or some other type of security document whether that be a Letter of
Credit or Bond. Currently the Company only has Cash Bonds outstanding which are in support of West Virginia permits. 

  
 Schedule
2.3(a) 
 6 

	 	b)	Vendor Advances—are required by some vendors contracts and are generally returned or applied to final invoices upon satisfactory project completion. These advances
will be supported by the contract and payment made on behalf of the Company. 

  

	 	c)	Deposits—are required by various vendor / service providers which are primarily utility deposits for the Company. The balance will be supported by invoices and/or
any receipts reducing such deposits. These balances are fairly static. 

  

	 	d)	Other—any other prepaid expenses will be supported by appropriate documentation. 

 

	 	4.	Property, Plant, and Equipment (“PP&E”)—will be an accumulation of actual expenditures paid and recorded by the company in addition to the amounts
accrued in 6(a) below. 

  

	 	5.	Accounts Payable (“A/P”)—consists of the following types of A/P accounts 

 

	 	a)	Trade A/P—the balance will be supported by invoices that have been recorded in the sub and general ledger of the Company as of three days prior to the Closing
Date. 

  

	 	b)	Project Retention A/P—exists when construction contracts provide for a percentage of invoice to be withheld until satisfactory completion of a project. The balance
in this account will be supported by the contract, an invoice, and a schedule detailing the amounts withheld for retention. 

  

	 	c)	Other A/P—any other accounts payable will be supported by appropriate documentation. 

 

	 	6.	Accrued Payable balances are determined for Capex, Opex, and G&A: 

  

	 	a)	Capex Accrual—will include (a) unposted invoices still in the approval process and (b) Operations personnel’s projections of work performed for
which the Company has not yet received the invoice. The accrual will account for the activities performed up to the Closing Date. 

  

	 	b)	Opex Accrual—will include any worked performed in support of operating and maintaining the assets, but not yet invoiced and /or recorded in the Company’s
ledger. A large component of the accrual is related to ad valorem tax. The monthly ad valorem is based on the Company’s capital forecast and will be reduced proportionately on a straight-line basis should closing occur prior to the end of the
month. 

  

	 	c)	G&A Accrual—each month the Company is allocated and charged a prorata share of the Contributor’s G&A. An accrual will be recorded on the
Company’s books for an amount calculated by multiplying the Contributor’s budgeted G&A expense for the month of closing times the allocation percentage determined (and supported) by the Contributor and further reduced proportionately
by the number of days of the month prior to the Closing Date. 

  
 Schedule
2.3(a) 
 7 

	 	d)	Employee Accrual—will include accruals for employee-related costs to be paid by the Acquirer, including bonus and paid time off accruals. 

 

	 	7.	Long Term Deferred Revenue—is related to a Chevron condensate system contract whereby the cash received under the contract is accelerated faster than the
amortization period for revenue recognition. The monthly change to Deferred Revenue is consistent month to month and will readily to be prorated to any mid-month settlement. 

 

	 	8.	Intercompany notes payable—represents the cumulative balance due to the Company’s parent and other affiliates. 

 

	 	9.	Member’s Equity (Deficit)—will represent the cumulative retained earnings of the Company from its inception including a prorated net income attributable to
the month of the Closing Date. 

  

	B.	Estimated Net Working Capital—is calculated by adding the Current Assets (items A.1, A.2 and A.3 above) and subtracting the sum of (i) Current
Liabilities (items A.5 and A.6, above) and (ii) Long Term Deferred Revenue A.7. To the extent that any of the Net Working Capital items are settled or paid directly to a vendor or customer (i.e. replacement of a cash or surety bond), those
amounts will be excluded from consideration in the Estimate Net Working Capital. For purposes of clarity, Estimated Net Working Capital does not include any indebtedness accounts. See attached example calculation. 

 

	C.	Estimated Pre-Closing Capital Expenditures Amount—this amount represents the amount of cost incurred on the Company’s capital projects between
January 1, 2012 and the Closing Date for Pre-Approved Capital Expenditures less the sum of (i) Aid In Construction receipts from January 1, 2012 through the date of the Estimated Closing Date Balance Sheet and (ii) Aid in
Construction Receivables on the Closing Date Balance Sheet. These costs will be exclusive of any Capitalized Interest charged to the Company. The amount will be derived as follows: 

 

	 	1.	The sum of all Pre-Approved Capital Expenditures recorded in the general ledger of the Company, including amounts accrued in 6(a) above, with a date incurred of
January 1, 2012 or later. This total will represent invoices or journal entries paid, accrued or otherwise recorded to the asset accounts of the Company during this timeframe. 

 

	 	2.	Less (a) the sum of any asset sales from January 1, 2012 through the date of Estimated Closing Date Balance Sheet, (b) the sum of any PP&E material
transfers outside of the company from January 1, 2012 through the date of the Estimated Closing Date Balance Sheet (c) the sum of Aid In Construction receipts from January 1, 2012 through the date of the Estimated Closing Date Balance
Sheet and (d) Aid In Construction on the Closing Date Balance Sheet. 

  
 Schedule
2.3(a) 
 8 

	D.	Estimated Purchase Price Adjustment—is the amount equal to the following; 

 

	 	1.	The amount of the Estimated Net Working Capital defined in B above, less  

 

	 	2.	The Target Net Working Capital, plus 

  

	 	3.	The amount of the Estimated Pre-Closing Capital Expenditures Amount derived in C above, less 

 

	 	4.	The Target Pre-Closing Capital Expenditures Amount, less 

  

	 	5.	The Estimated Indebtedness Amount. 

  
 Schedule
2.3(a) 
 9 

 Example for Schedule 2.3—Accounting Methodology 

As clarification to the application of the methodology described in Schedule 2.3, the following is a calculation of estimated net working capital based
on the audited December 31, 2011 balance sheet. 
 Estimated Net Working Capital  

 

					
	 Based on December 31, 2011 balances:
	  			
	 Cash and cash equivalents
	  	$	0	  
	 Accounts receivable
	  	 	4,375,007	  
	 Prepaid expenses
	  	 	15,000	  
	 Deposits and other assets
	  	 	256,392	  
	 Vendor advances
	  	 	1,686,041	  
		  	  
	  
	 
	 Total current assets
	  	$	6,332,440	  
		  	  
	  
	 
	 Accounts Payable
	  	$	(10,606,825	) 
	 Accrued and other liabilities
	  	 	(48,911,012	) 
	 Employee accruals
	  	 	(0	) 
	 Other Current Liabilities
	  	 	0	  
	 Total current liabilities
	  	$	(59,517,837	) 
		  	  
	  
	 
	 Current Assets—Current Liabilities
	  	$	(53,185,397	) 
		  	  
	  
	 
	 Long Term Deferred Revenue
	  	$	(683,287	) 
	 Estimated Net Working Capital
	  	$	(53,868,684	) 

  
 Schedule
2.3(a) 
 10 

 SCHEDULE 2.4 
 PURCHASE PRICE ALLOCATION 
 The Final Purchase Price, liabilities of the Company, and any
other items constituting consideration for applicable income Tax purposes shall be allocated among the assets of the Company in a manner consistent with the following: 
 Assets included in the determination of Net Working Capital shall be allocated an amount equal to the amount of such items as reflected in the Final Working Capital. 

Property, plant and equipment and other tangible assets (other than assets included in the determination of Net Working Capital) shall be allocated an
amount no greater than the historic cost of such assets. 
 Any remaining purchase price shall be allocated to goodwill and other intangible
assets. 

  
 Schedule 2.4

 11 

 SCHEDULE 3.3(b) 

CONSENT AND OTHER ACTIONS 

Part I 
 The following contracts
require consent or notice before a change of control of Caiman Eastern Midstream, LLC. 
  

	1.	Master Compression Services Agreement between EXLP Operating LLC and Caiman Energy, LLC dated December 1, 2009. 

 

	2.	Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman Eastern Midstream, LLC dated September 14, 2011, including that
Equipment Schedule dated February 29, 2012 and that Addendum to Equipment Schedule dated February 29, 2012, as amended by that Addendum to Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman
Eastern Midstream, LLC dated June 23, 2011, and further amended by that Lessee’s Option to Purchase Equipment dated February 29, 2012. 

  

	3.	Tank Lease Agreement between Total Energy Corp. and Caiman Holdings, LLC dated April 2011, not amended. Caiman Holdings, LLC assigned its interest to Caiman Eastern
Midstream, LLC by that Assignment dated April 1, 2011. 

  

	4.	Environmental Covenant among Olin Corporation, Honeywell International, Inc. and Caiman Eastern Midstream, LLC dated August 15, 2011. 

 

	5.	Purchase and Sale Agreement among CNX Gas Company LLC, CNX Land Resources Inc., Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated October 24, 2011, as
amended by that Amendment No. 1 to Purchase and Sale Agreement by and among CNX Gas Company LLC and CNX Land Resources Inc., as the Consol Entities, and Caiman Energy, LLC and Caiman Eastern Midstream, LLC as the Caiman Entities dated
February 15, 2012. 

 Part II 
 The following contracts are expected to be assigned from Caiman Energy, LLC to Caiman Eastern Midstream, LLC prior to Closing and such assignment requires consent. 

 

	1.	Gas Compression Master Service Agreement between USA Compression and Caiman Energy, LLC dated July 26, 2010. (Schedules have been updated and/or amended for each
compressor leased, but no amendment to the base MSA.) 

  

	2.	Master Compression Services Agreement between EXLP Operating LLC and Caiman Energy, LLC dated December 1, 2009, not amended. 

 

	3.	Operational Balancing Agreement between Texas Eastern Transmission, LP and Caiman Energy, LLC dated February 1, 2010, not amended. 

  
 Schedule
3.3(b) 
 12 

	4.	Equipment Lease Agreement between Kinder Morgan Treating LP and Caiman Energy, LLC dated April 15, 2010, as amended by that Amendment No. 1 to Equipment Lease
Agreement between Kinder Morgan Treating LP and Caiman Energy, LLC dated July 2010 and further amended by that Amendment No. 2 to Equipment Lease Agreement between Kinder Morgan Treating LP and Caiman Energy, LLC dated June 27, 2011.

  

	5.	Equipment Lease Agreement between Kinder Morgan Treating LP and Caiman Energy, LLC dated November 3, 2009, not amended. 

 

	6.	Marketing Services Agreement between Inergy Propane LLC and Caiman Energy, LLC dated January 1, 2011, as amended by that Letter Agreement between Inergy Propane
LLC and Caiman Energy, LLC dated July 14, 2011. 

  

	7.	Plant Equipment Contract for a 200 MM Cryogenic Plant (Plant III) between Caiman Energy, LLC and Thomas Russell, LLC d/b/a Thomas Russell Co. dated May 31, 2011,
not amended. 

  

	8.	Plant Equipment Contract for a 200 MM Cryogenic Plant with 4500 HP Refrigeration System (Plant IV) between Caiman Energy, LLC and Thomas Russell, LLC d/b/a Thomas
Russell Co. dated October 1, 2011, not amended. 

  
 Schedule
3.3(b) 
 13 

 SCHEDULE 3.3(c) 

CONSENTS AND APPROVALS 

None. 

  
 Schedule
3.3(c) 
 14 

 SCHEDULE 3.6 
 ABSENCE OF CERTAIN CHANGES 
  

	(viii)	sold, transferred or disposed of any material assets, except in the ordinary course of business consistent with past practice: 

 

	1.	By that Purchase and Sale Agreement between Caiman Eastern Midstream, LLC and Wheeling Power Company dated February 21, 2012, Caiman Eastern Midstream, LLC sold
substantially all of the assets relating to a 138kV electric transmission line in Marshall County, West Virginia. 

  

	2.	By that Bill of Sale between Caiman Eastern Midstream, LLC and Caiman Energy, LLC, as Seller, and Zions Credit Corporation dba Amegy Equipment Finance, as Buyer, dated
February 29, 2012, Seller sold to Buyer two Toshiba Medium Voltage T300Mvi Adjustable Speed Drives and related equipment in a sale/leaseback transaction. 

  
 Schedule 3.6

 15 

 SCHEDULE 3.7 
 MATERIAL LIABILITIES 
 None. 

  
 Schedule 3.7

 16 

 SCHEDULE 3.8(a) 

MATERIAL CONTRACTS 
  

	(i)	Contracts with customers pursuant to which the Company gathers, processes, treats, fractionates, transports, stores, sells or purchases oil, natural gas, condensate
or natural gas liquids or other liquid or gaseous hydrocarbons or the products therefrom, or provides services related thereto (including any operation, operation servicing or maintenance Contract), other than, in each case, any such Contracts
described in Section 3.8(a)(viii): 

  

	1.	Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler 2000 Limited Partnership and
Enerplus Resources (USA) Corporation dated October 25, 2009, as amended by that Amendment No. 1 to Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler 2000
Limited Partnership and Enerplus Resources (USA) Corporation dated December 18, 2009; Amendment No. 2 to Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler
2000 Limited Partnership and Enerplus Resources (USA) Corporation dated March 25, 2010; Amendment No. 3 to Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler
2000 Limited Partnership and Enerplus Resources (USA) Corporation dated March 31, 2010; Amendment No. 4 to Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler
2000 Limited Partnership and Enerplus Resources (USA) Corporation dated May 31, 2010; Amendment No. 5 to Gas Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler
2000 Limited Partnership and Enerplus Resources (USA) Corporation dated June 5, 2010. AB Resources LLC assigned its interest to Chevron U.S.A. Inc. by that Conveyance dated August 5, 2011. Chief Exploration & Development LLC,
Radler 2000 Limited Partnership and Enerplus Resources (USA) Corporation assigned their interests to Chevron U.S.A. Inc. by that Assignment and Bill of Sale dated June 28, 2011. 

 

	2.	Letter Agreement for Interim Vapor Recovery Compression between Caiman Eastern Midstream, LLC and AB Resources LLC dated April 11, 2011. AB Resources LLC assigned
its interest to Chevron U.S.A. Inc. by that Conveyance dated August 5, 2011, not amended. 

  

	3.	Gas Processing Agreement between Caiman Eastern Midstream, LLC and AB Resources LLC dated December 7, 2009. AB Resources LLC assigned its interest to Chevron
U.S.A. Inc. by that Conveyance dated August 5, 2011, not amended. 

  

	4.	Gas Gathering Agreement between Caiman Eastern Midstream, LLC and Trans Energy Inc. dated November 20, 2009, as amended by that Amendment No. 1 to Gas
Gathering Agreement between Caiman Eastern Midstream, LLC and Trans Energy Inc. dated August 22, 2011. Republic Energy Operating, LLC ratified the Gas Gathering Agreement by that Ratification Agreement between Caiman Eastern Midstream, LLC and
Republic Energy Operating, LLC dated December 14, 2011. 

  
 Schedule
3.8(a) 
 17 

	5.	Gas Gathering Agreement among Caiman Eastern Midstream, LLC, Republic Energy Operating, LLC and Trans Energy Inc. dated February 18, 2010, as amended by that
Agency Agreement between Trans Energy, Inc. and SEI Energy, LLC dated August 29, 2011. 

  

	6.	Gas Processing Agreement among Caiman Eastern Midstream, LLC, Republic Energy Operating, LLC and Trans Energy Inc. dated February 18, 2010, as amended by that
Agency Agreement between Trans Energy, Inc. and SEI Energy, LLC dated August 29, 2011. 

  

	7.	Produced Liquids Gathering Agreement among Caiman Eastern Midstream, LLC, AB Resources LLC, Chief Exploration & Development LLC, Radler 2000 Limited
Partnership and Enerplus Resources (USA) Corporation dated March 25, 2010. AB Resources LLC assigned its interest to Chevron U.S.A. Inc. by that Conveyance dated August 5, 2011, not amended. Chief Exploration & Development LLC,
Radler 2000 Limited Partnership and Enerplus Resources (USA) Corporation assigned their interests to Chevron U.S.A. Inc. by that Assignment and Bill of Sale dated June 28, 2011. 

 

	8.	Gas Gathering and Processing Agreement among Caiman Eastern Midstream, LLC, Drilling Appalachian Corp. and Grenadier Energy Partners, LLC dated September 29, 2010,
as amended by that Amendment No. 1 to Gas Gathering and Processing Agreement among Caiman Eastern Midstream, LLC and Grenadier Energy Partners, LLC dated October 12, 2011. Drilling Appalachian Corp. and Grenadier Energy Partners, LLC
assigned a partial interest to Sequent Energy Management, L.P. by that Partial Assignment among Drilling Appalachian Corp., Grenadier Energy Partners, LLC, Sequent Energy Management, L.P. and Caiman Eastern Midstream, LLC dated August 11, 2011.

  

	9.	Gas Processing Agreement between Caiman Eastern Midstream, LLC and SEI Energy, LLC dated December 3, 2010, not amended. 

 

	10.	Gas Gathering Agreement between Caiman Eastern Midstream, LLC and SEI Energy, LLC dated December 3, 2010, as amended by that Amendment No. 1 to Gas Gathering
Agreement between Caiman Eastern Midstream, LLC and SEI Energy, LLC dated April 26, 2011. 

  

	11.	Condensate Gathering Agreement between Caiman Eastern Midstream, LLC and SEI Energy, LLC dated December 3, 2010, not amended. 

 

	12.	Gas Processing Agreement between Caiman Eastern Midstream, LLC and Statoil Natural Gas LLC dated February 25, 2011, not amended. 

 

	13.	Interim Gathering Agreement for the Victory Field between Caiman Eastern Midstream, LLC and Statoil Natural Gas LLC dated August 11, 2011, not amended.

  
 Schedule
3.8(a) 
 18 

	14.	Gas Gathering and Processing Agreement between Caiman Eastern Midstream, LLC and Stone Energy Corporation dated January 7, 2011, not amended.

  

	15.	Condensate Gathering Agreement between Caiman Eastern Midstream, LLC and Stone Energy Corporation dated April 7, 2011, as amended by that Amendment No. 1 to
Condensate Gathering Agreement between Caiman Eastern Midstream, LLC and Stone Energy Corporation dated June 2, 2011. 

  

	16.	Gas Processing Agreement between Caiman Eastern Midstream, LLC and Chesapeake Energy Marketing, Inc. dated January 18, 2011, not amended. 

 

	17.	Ethane Sale Agreement between Caiman Eastern Midstream, LLC and NOVA Chemicals Corporation dated August 19, 2011, not amended. NOVA Chemicals Corporation issued
that Notice to Proceed dated February 27, 2012. 

  

	18.	Interim Gathering Agreement for the Victory Field between Caiman Eastern Midstream, LLC and Chesapeake Energy Marketing, Inc. dated August 30, 2011, not amended.

  

	19.	Gas Gathering and Processing Agreement between Caiman Eastern Midstream, LLC and PetroEdge Energy LLC dated September 19, 2011, not amended.

  

	20.	Gas Gathering and Processing Agreement between Caiman Eastern Midstream, LLC and Protégé Energy II LLC dated September 30, 2011, not amended.

  

	21.	Base Contract for Sale and Purchase of Natural Gas between Sequent Energy Management, L.P. and Caiman Eastern Midstream, LLC dated June 1, 2011, not amended.

  

	22.	Reimbursement, Construction, Ownership and Operation Agreement (73656) between Texas Eastern Transmission, LP and Caiman Energy, LLC dated August 17, 2009, as
amended by that Amendment to Reimbursement, Construction, Ownership and Operation Agreement between Texas Eastern Transmission, LP and Caiman Energy, LLC for Texas Eastern – M&R Marshall County, West Virginia dated July 20, 2010 and
further amended by that Second Amendment to Reimbursement, Construction, Ownership and Operation Agreement between Texas Eastern Transmission, LP and Caiman Energy, LLC for Texas Eastern – M&R Marshall County, West Virginia dated
November 29, 2011. Caiman Energy, LLC assigned its interest to Caiman Eastern Midstream, LLC by that Corrected Assignment dated March 1, 2012. 

  

	23.	Meter Interconnect Letter Agreement (640611) between NiSource Midstream Services, LLC and Caiman Eastern Midstream, LLC dated September 7, 2010.

  

	24.	Meter Interconnect Letter Agreement (642584) between NiSource Midstream Services, LLC and Caiman Eastern Midstream, LLC dated April 13, 2011.

  

	25.	Pipeline Interconnection Agreement between MarkWest Liberty Midstream & Resources, L.L.C. and Caiman Eastern Midstream, LLC dated April 29, 2011, not
amended. 

  
 Schedule
3.8(a) 
 19 

	26.	Tap Agreement between Dominion Transmission, Inc. and Trans Energy, Inc. dated April 11, 2007, not amended. Trans Energy, Inc. assigned its interest to Caiman
Eastern Midstream, LLC by that Assignment and Bill of Sale between Trans Energy, Inc. and Caiman Eastern Midstream, LLC dated November 20, 2009. Trans Energy, Inc. and Tyler Construction Company, Inc., a wholly owned subsidiary of Trans Energy,
Inc., assigned their interests to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale dated March 7, 2012. 

  

	27.	Operational Balancing Agreement between Texas Eastern Transmission, LP and Caiman Energy, LLC dated February 1, 2010, not amended. 

 

	28.	Electronic Measurement Balancing Agreement between Dominion Transmission, Inc. and Trans Energy, Inc. dated August 14, 2007, not amended. Trans Energy, Inc.
assigned its interest to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale between Trans Energy, Inc. and Caiman Eastern Midstream, LLC dated November 20, 2009. Trans Energy, Inc. and Tyler Construction Company, Inc., a wholly
owned subsidiary of Trans Energy, Inc., assigned their interests to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale dated March 7, 2012. 

 

	29.	Marketing Services Agreement between Inergy Propane LLC and Caiman Energy, LLC dated January 1, 2011, as amended by that Letter Agreement between Inergy Propane
LLC and Caiman Energy, LLC dated July 14, 2011. 

  

	30.	Operating Services Agreement between Grenadier Energy Partners, LLC and Caiman Eastern Midstream, LLC dated August 15, 2011, not amended. 

 

	(ii)	Contracts in effect as of the date of the Agreement for the construction of gathering or other pipeline systems or processing, fractionation or storage facilities
other than any such Contracts requiring aggregate payments of less than $1,000,000 or which are terminable by the Company on 60 days’ notice or less without payment by the Company of any material penalty: 

 

	31.	Fee Plant Equipment Contract for a Thomas Russell Company Standard 120 MMSCFD Cryogenic Plant (Plant I) between Caiman Eastern Midstream, LLC and Thomas Russell, LLC
d/b/a Thomas Russell Co. dated September 9, 2008. Thomas Russell, LLC assigned its interest to Chesapeake Midstream Operating, L.L.C. by that Assignment and Assumption Agreement among Thomas Russell, LLC d/b/a Thomas Russell Co., Caiman Eastern
Midstream, LLC and Chesapeake Midstream Operating, L.L.C. dated April 2010, not amended. 

  

	32.	Letter Agreement regarding Thomas Russell 120 MMSCFD Cryogenic Plant (Plant I) between Chesapeake Midstream Operating, L.L.C. and Caiman Eastern Midstream, LLC dated
April 28, 2010, not amended. 

  

	33.	Plant Equipment Contract for a 200 MM Cryogenic Plant (Plant II) between Wilson Midstream Services, LLC and Thomas Russell, LLC d/b/a Thomas Russell Co. dated
September 1, 2010, not amended. Wilson Midstream Services, LLC assigned its interest to Caiman Eastern Midstream, LLC by that Assignment and Assumption Agreement among Thomas Russell, LLC d/b/a Thomas Russell Co., Wilson Midstream Services, LLC
and Caiman Eastern Midstream, LLC dated November 30, 2010, not amended. 

  
 Schedule
3.8(a) 
 20 

	34.	Letter Agreement regarding Thomas Russell 200 MM Cryogenic Plant (Plant II) between Wilson Midstream Services, LLC and Caiman Eastern Midstream, LLC dated
October 19, 2010, not amended. 

  

	35.	Contract Agreement between Caiman Eastern Midstream, LLC and Chapman Corporation for Fort Beeler Cryogenic Plant Phase II (Plant II) dated September 21, 2011, not
amended. 

  

	36.	Letter Agreement regarding 200 MM Cryogenic Plant (Plant III) between Caiman Energy, LLC and Thomas Russell, LLC d/b/a Thomas Russell Co. dated May 6, 2011, not
amended. 

  

	37.	Plant Equipment Contract for a 200 MM Cryogenic Plant (Plant III) between Caiman Energy, LLC and Thomas Russell, LLC d/b/a Thomas Russell Co. dated May 31, 2011,
not amended. 

  

	38.	Plant Equipment Contract for a 200 MM Cryogenic Plant with 4500 HP Refrigeration System (Plant IV) between Caiman Energy, LLC and Thomas Russell, LLC d/b/a Thomas
Russell Co. dated October 1, 2011, not amended. 

  

	(iii)	Contracts (A) for the purchase or sale of any asset, equipment, supplies, goods or property or provision of any service or (B) that grant a right or option
to purchase or sell any asset or property or receive services other than, in each case, (x) any such Contracts requiring aggregate payments of less than $1,000,000 or (y) any such Contracts described in Section 3.8(a)(i) or
Section 3.8(a)(ii): 

  

	39.	Service Agreement Applicable to Transportation of Natural Gas between Hope Gas, Inc. dba Dominion Hope, and Caiman Eastern Midstream, LLC dated November 15, 2011,
not amended. 

  

	40.	Purchase and Sale Agreement among CNX Gas Company LLC, CNX Land Resources Inc., Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated October 24, 2011, as
amended by that Amendment No. 1 to Purchase and Sale Agreement by and among CNX Gas Company LLC and CNX Land Resources Inc., as the Consol Entities, and Caiman Energy, LLC and Caiman Eastern Midstream, LLC as the Caiman Entities dated
February 15, 2012. 

  

	41.	Purchase Agreement between Olin Corporation and Caiman Energy, LLC dated May 9, 2011, as amended by that Amendment to Purchase Agreement between Olin Corporation
and Caiman Energy, LLC dated May 19, 2011 and further amended by that Second Amendment to Purchase Agreement between Olin Corporation and Caiman Energy, LLC dated August 5, 2011. 

 

	42.	Purchase and Sale Agreement between Caiman Eastern Midstream, LLC and Wheeling Power Company dated February 21, 2012, not amended. 

  
 Schedule
3.8(a) 
 21 

	43.	Gas Compression Master Service Agreement between USA Compression and Caiman Energy, LLC dated July 26, 2010. (Schedules have been updated and/or amended for each
compressor leased, but no amendment to the base MSA.) 

  

	44.	Compression Agreement between Dominion Transmission, Inc. and Trans Energy, Inc. dated August 14, 2007, not amended. Trans Energy, Inc. and Tyler Construction
Company, Inc., a wholly owned subsidiary of Trans Energy, Inc., assigned their interests to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale dated March 7, 2012. 

 

	45.	Master Compression Services Agreement between EXLP Operating LLC and Caiman Energy, LLC dated December 1, 2009, not amended. 

 

	46.	Surplus Equipment Sales Agreement between Bexar Energy Holdings, Inc. and Caiman Eastern Midstream, LLC dated November 16, 2010, not amended.

  

	47.	Asset Purchase and Sale Agreement between Trans Energy, Inc. and Caiman Eastern Midstream, LLC dated November 20, 2009, not amended. 

 

	48.	Bill of Sale between Caiman Eastern Midstream, LLC and Caiman Energy, LLC, as Seller, and Zions Credit Corporation dba Amegy Equipment Finance, as Buyer, dated
February 29, 2012, not amended. 

  

	49.	Measurement Operating Agreement between Dominion Transmission, Inc. and Trans Energy, Inc. dated August 14, 2007, not amended. Trans Energy, Inc. and Tyler
Construction Company, Inc., a wholly owned subsidiary of Trans Energy, Inc., assigned their interests to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale dated March 7, 2012. 

 

	50.	Operation and Maintenance Agreement between Dominion Transmission, Inc. and Trans Energy, Inc. dated January 25, 2008, not amended. Trans Energy, Inc. and Tyler
Construction Company, Inc., a wholly owned subsidiary of Trans Energy, Inc., assigned their interests to Caiman Eastern Midstream, LLC by that Assignment and Bill of Sale dated March 7, 2012. 

 

	51.	Option to Purchase Agreement between Barbara Pearl Francis and Caiman Eastern Midstream, LLC dated March 1, 2012, not amended. 

 

	52.	Option to Purchase Agreement between Barbara Pearl Francis and Caiman Eastern Midstream, LLC dated March 15, 2012, not amended. 

 

	(iv)	Contracts providing for the lease of any item or items of personal or real property with annual rental expense under such lease in excess of $50,000 other than any
such Contracts which are terminable by the Company on 60 days’ notice or less without payment by the Company of any material penalty: 

  

	53.	 Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman Eastern Midstream, LLC dated September 14,
2011, including that 

  
 Schedule
3.8(a) 
 22 

	 	
Equipment Schedule dated February 29, 2012 and that Addendum to Equipment Schedule dated February 29, 2012, as amended by that Addendum to Master Finance Lease between Zions Credit
Corporation dba Amegy Equipment Funding Group and Caiman Eastern Midstream, LLC dated June 23, 2011, and further amended by that Lessee’s Option to Purchase Equipment dated February 29, 2012. 

 

	54.	Tank Lease Agreement between Total Energy Corp. and Caiman Holdings, LLC dated April 2011, not amended. Caiman Holdings, LLC assigned its interest to Caiman Eastern
Midstream, LLC by that Assignment dated April 1, 2011. 

  

	55.	Lease Agreement between Precision Filtration Products and Caiman Energy, LLC dated January 20, 2012, not amended. Caiman Energy, LLC assigned its interest to
Caiman Eastern Midstream, LLC by that Assignment dated March 1, 2012. 

  

	56.	Surface Agreement between Thomas E. Allen and Ronald E. Allen and Caiman Eastern Midstream, LLC dated December 10, 2009, as amended by that Amendment and
Memorandum of Surface Agreement between Thomas E. Allen and Ronald E. Allen and Caiman Eastern Midstream, LLC dated May 30, 2011. 

  

	(v)	Contracts under which the Company has created, incurred, assumed or guaranteed any outstanding Indebtedness: 

 

	57.	Revolving credit facility under that certain Credit Agreement among Caiman Energy, LLC, each lender from time to time party thereto and Bank of America, N.A. dated
March 31, 2011, not amended. 

  

	58.	Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman Eastern Midstream, LLC dated September 14, 2011, including that
Equipment Schedule dated February 29, 2012 and that Addendum to Equipment Schedule dated February 29, 2012, as amended by that Addendum to Master Finance Lease between Zions Credit Corporation dba Amegy Equipment Funding Group and Caiman
Eastern Midstream, LLC dated June 23, 2011, and further amended by that Lessee’s Option to Purchase Equipment dated February 29, 2012. 

  

	59.	Intercompany Loan Agreement between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated December 31, 2011. 

 

	(vi)	Contracts between (A) the Company, on the one hand, and any current or former employee, officer, manager, member or Affiliate of the Company, on the other hand,
(B) the Company and any Employee, or (C) the Company and Contributor or any of its Affiliates with respect to any Employee: 

  

	60.	Intercompany Loan Agreement between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated December 31, 2011. 

 

	(vii)	collective bargaining Contracts: 

 None.

  
 Schedule
3.8(a) 
 23 

	(viii)	any outstanding futures, swap, collar, put, call, floor, cap, option, hedging, forward sale or other derivative Contracts involving natural gas or other commodity
sales or trading: 

  

	None.	

  

	(ix)	Contracts that (A) purport to limit in any respect the freedom of the Company to compete in any line of business or in any geographic area or not to solicit or
hire any person with respect to employment or (B) that purport to limit in any respect the freedom of any other Person to compete with the Company in any line of business or in any geographical area or not to solicit or hire any person with
respect to employment: 

  

	None.	

  

	(x)	partnership, joint venture, strategic alliance or limited liability company agreements: 

 

	61.	Company Agreement of Caiman Eastern Midstream, LLC dated August 31, 2011, as amended by that Amendment No. 1 to the Company Agreement of Caiman Eastern
Midstream, LLC dated February 25, 2011. 

  

	(xi)	except as contemplated by clauses (i) and (ii) above, any sales, distribution or other similar agreement providing for the sale by any of the Company of
materials, supplies, goods, services, equipment or other assets that provides for annual payments to the Company of $1,000,000 or more: 

  

	None.	

  

	(xii)	Contracts relating to the acquisition (by merger, purchase of stock or assets or otherwise) by the Company of any operating business or material assets or Equity
Interests of any other Person: 

  

	None.	

  

	(xiii)	any Contract with a term of two years or more and requiring aggregate payments by or to the Company in excess of $1,000,000 or, in any event, any Contract with a
term of three years or more, other than any such Contracts which are terminable by the Company on 60 days’ notice or less without payment by the Company of any material penalty: 

 

	62.	Private Sidetrack Agreement between CSX Transportation, Inc. and Caiman Eastern Midstream, LLC dated March 2, 2012, not amended. 

 

	(xiv)	any Contract under which the Company has made advances or loans to any other Person: 

 None. 

  
 Schedule
3.8(a) 
 24 

	(xv)	any material management Contract or any material Contract with independent contractors or consultants (or similar arrangements) that are not cancelable without
penalty or further payment and on not more than 30 days’ notice: 

  

	None.	

  

	(xvi)	any other Contract not described in the foregoing clauses (i) through (xv) pursuant to which the Company has future liability in excess of $1,000,000 for
any year or $3,000,000 in the aggregate and that cannot be terminated by the Company on not more than 90 days’ notice or with payment by the Company of a penalty not in excess of $50,000: 

None. 

  
 Schedule
3.8(a) 
 25 

 SCHEDULE 3.8(b) 

MATERIAL BREACHES, TERMINATIONS AND RELEASES 
 None. 

  
 Schedule
3.8(b) 
 26 

 SCHEDULE 3.9 
 LITIGATION 
  

	1.	Blue Group Resources, Inc., Plaintiff, v. Caiman Energy, LLC, Caiman Eastern Midstream, LLC and Caiman Ohio Midstream, LLC, Defendants, Case No. 2:11-CV-648, In
the United States District Court for the Southern District of Ohio Eastern Division. 

  

	2.	Caiman Eastern Midstream, LLC v. Darren S. Whipkey, et al., Case No. 5:11-CV-136-FPS, In the United States District Court for the Northern District of West
Virginia. 

  

	3.	Caiman Eastern Midstream, LLC v. Dale E. Hall, et al., Case No. 5:11-CV-136-FPS, In the United States District Court for the Northern District of West Virginia.

  

	4.	Kittle Hauling & Supply Co., Inc., Plaintiff, v. L.A. Pipeline Construction Co. Inc. and Caiman Eastern Midstream, LLC, Defendants, Civil Action
No. 11-C-204K, In the Circuit Court of Marshall County, West Virginia. 

  

	5.	Glass Bagging Enterprises, Inc., Plaintiff, v. L.A. Pipeline Construction Co. Inc. and Caiman Eastern Midstream, LLC, Defendants, Civil Action No. 11-C-70, In the
Circuit Court of Marshall County, West Virginia. 

  

	6.	L.A. Pipeline Construction Co. Inc., Plaintiff, v. and Caiman Energy, LLC, et al., Defendants, Civil Action No. 11-C-24, In the Circuit Court of Marshall County,
West Virginia. 

  

	7.	In the Matter of Caiman Energy, LLC, EPA Docket No. CWA-03-2011-0137DW, May 23, 2011 Order for Compliance. 

 

	8.	In the Matter of Caiman Energy, LLC, EPA Docket No. CWA-03-2011-0300DW, September 28, 2011 Order for Compliance. 

 

	9.	West Virginia Department of Environmental Protection December 12, 2011 Consent Order, Order No. 7467. 

  
 Schedule 3.9

 27 

 SCHEDULE 3.10(a) 

COMPLIANCE WITH LAWS 

None. 

  
 Schedule
3.10(a) 
 28 

 SCHEDULE 3.10(b) 

PERMITS 
 None.

  
 Schedule
3.10(b) 
 29 

 SCHEDULE 3.11(a) 

PROPERTIES AND LIENS 

A. Real Property Owned in Fee 
  

															
	 PID
	  	DATE OF
DEED	  	 GRANTOR
	  	ACRES	  	DISTRICT	  	COUNTY	  	STATE	  	DEED BOOK
AND PAGE
	 15-17-26
	  	10-Jun-11	  	Curtis H. Allen, et ux	  	2.000	  	Webster	  	Marshall	  	WV	  	735/167
	 15-17-26
	  	14-Dec-11	  	Curtis H. Allen, et ux	  	1.580	  	Webster	  	Marshall	  	WV	  	753/132
	 15-17-26
	  	14-Dec-11	  	Curtis H. Allen, et ux	  	2.000	  	Webster	  	Marshall	  	WV	  	753/128
	 15-17-26.1
	  	20-Jun-11	  	Olid W. Groves	  	3.267	  	Webster	  	Marshall	  	WV	  	735/393
	 15-17-27
	  	7-Apr-11	  	Robert J. Groves, et ux	  	7.950	  	Webster	  	Marshall	  		  	729/64
		  	24-Aug-11	  	Corrective Deed	  		  		  		  		  	743/586
	 15-17-27.1
	  	7-Apr-11	  	Robert J. Groves, et ux	  	7.950	  	Webster	  	Marshall	  	WV	  	729/64
		  	24-Aug-11	  	Corrective Deed	  		  		  		  		  	743/586
	 4-1-2
	  	15-Aug-11	  	Olin Corporation	  	146.076	  	Clay	  	Marshall	  	WV	  	743/385
	 4-1-15
	  	14-Nov-11	  	Jeanne Busack	  	1.190	  	Clay	  	Marshall	  	WV	  	749/578
		  		  		  	1.217	  		  		  		  	
	 4-22-33.3
	  	11-Aug-11	  	Timothy Scott Bates, et ux	  	3.800	  	Grant	  	Wetzel	  	WV	  	427/816
	 15-60133.000
	  		  	The Commission of	  	4.027	  	Mead	  	Belmont	  	OH	  	
		  		  	 Belmont County
	  	0.402	  		  		  		  	

 B. Liens 

None. 

  
 Schedule
3.11(a) 

 SCHEDULE 3.11(b) 

THIRD PARTY AGREEMENTS 

None. 

  
 Schedule
3.11(b) 
 31 

 SCHEDULE 3.11(c)(i) 

RIGHTS-OF-WAY 
  

									
	 	  	 County, State/

District/

Acreage
	  	Parcel ID #	  	 Grantor
	  	 Grantee

					
	1.	  	Monroe, OH
Ohio Township	  	15-005018.0000	  	WestBank Harbor Services, Inc, an Ohio corporation by Eileen Maienknecht, Secretary / Treasurer	  	Caiman Ohio Midstream, LLC
					
	2.	  	Monroe, OH
Ohio Township	  	15-005018.0000	  	WestBank Harbor Services, Inc, an Ohio corporation by Eileen Maienknecht, Secretary / Treasurer	  	Caiman Ohio Midstream, LLC
					
	3.	  	Monroe, OH
Ohio Township	  	15-005018.0000	  	Westbank Harbor Services, Inc., an Ohio corporation by Norman Maienknecht, President	  	Caiman Ohio Midstream, LLC
					
	4.	  	Monroe, OH
Ohio Township	  	15-005014.0000	  	The Harold N. Harrison Revocable Trust by Harold N. Harrison, Trustee	  	Caiman Ohio Midstream, LLC
					
	5.	  	Monroe, OH
Ohio Township	  	15-005014.0000	  	The Harold N. Harrison Revocable Trust by Harold N. Harrison, Trustee	  	Caiman Ohio Midstream, LLC
					
	6.	  	Monroe, OH
Ohio Township	  	15-005014.0000	  	The Harold N. Harrison Revocable Trust by Harold N. Harrison, Trustee	  	Caiman Ohio Midstream, LLC
					
	7.	  	Monroe, OH
Ohio Township	  	15-005003.1000
15-005003.0000	  	James David Moeller and Angela Moeller	  	Caiman Ohio Midstream, LLC
					
	8.	  	Monroe, OH
Ohio Township	  	15-005003.1000
15-005003.0000	  	James David Moeller and Angela Moeller	  	Caiman Ohio Midstream, LLC
					
	9.	  	Monroe, OH
Ohio Township	  	15-005003.1000
15-005003.0000	  	James David Moeller and Angela Moeller	  	Caiman Ohio Midstream, LLC

  
 Schedule
3.11(c) 
 32 

									
	 	  	 County, State/

District/

Acreage
	  	Parcel ID #	  	 Grantor
	  	 Grantee

					
	10.	  	Monroe, OH
Ohio Township	  	15-005010.0000
15-005010.1000
15-005010.2000
15-005010.3000	  	Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	11.	  	Monroe, OH
Ohio Township	  	15-005010.0000
15-005010.1000
15-005010.2000
15-005010.3000	  	Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	12.	  	Monroe, OH
Ohio Township	  	15-005010.0000
15-005010.1000
15-005010.2000
15-005010.3000	  	Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	13.	  	Monroe, OH
Ohio Township	  	15-005008.0000
15-013010.0000
15-013010.1000
15-013010.2000
15-005009.0000
15-013007.0000	  	Tony Schindler and Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	14.	  	Monroe, OH
Ohio Township	  	15-005008.0000
15-013010.0000
15-013010.1000
15-013010.2000
15-005009.0000
15-013007.0000	  	Tony Schindler and Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	15.	  	Monroe, OH
Ohio Township	  	15-005008.0000
15-013010.0000
15-013010.1000
15-013010.2000
15-005009.0000
15-013007.0000	  	Tony Schindler and Pauline Schindler	  	Caiman Ohio Midstream, LLC
					
	16.	  	Monroe, OH
Ohio Township	  	15-013021.0000
15-013008.0000	  	Kevin E. Dennis and Bonita J. Dennis	  	Caiman Ohio Midstream, LLC

  
 Schedule
3.11(c) 
 33 

									
	 	  	 County, State/

District/

Acreage
	  	Parcel ID #	  	 Grantor
	  	 Grantee

					
	17.	  	Monroe, OH
Ohio Township	  	15-013021.0000
15-013008.0000	  	Kevin E. Dennis and Bonita J. Dennis	  	Caiman Ohio Midstream, LLC
					
	18.	  	Monroe, OH
Ohio Township	  	15-013021.0000
15-013008.0000	  	Kevin E. Dennis and Bonita J. Dennis	  	Caiman Ohio Midstream, LLC
					
	19.	  	Monroe, OH
Ohio Township	  	15-013011.0000	  	Phyllis Lea Glendenning	  	Caiman Ohio Midstream, LLC
					
	20.	  	Monroe, OH
Ohio Township	  	15-013011.0000	  	Phyllis Lea Glendenning	  	Caiman Ohio Midstream, LLC
					
	21.	  	Monroe, OH
Ohio Township	  	15-013011.0000	  	Phyllis Lea Glendenning	  	Caiman Ohio Midstream, LLC
					
	22.	  	Monroe, OH
Ohio Township	  	15-013024.0000	  	Robert I. Smeal	  	Caiman Ohio Midstream, LLC
					
	23.	  	Monroe, OH
Ohio Township	  	15-013024.0000	  	Robert I. Smeal	  	Caiman Ohio Midstream, LLC
					
	24.	  	Monroe, OH
Ohio Township	  	15-013024.0000	  	Robert I. Smeal	  	Caiman Ohio Midstream, LLC
					
	25.	  	Monroe, OH
Ohio Township	  	15-013012.0000	  	Randall Dennis	  	Caiman Ohio Midstream, LLC
					
	26.	  	Monroe, OH
Ohio Township	  	15-013012.0000	  	Randall Dennis	  	Caiman Ohio Midstream, LLC
					
	27.	  	Monroe, OH
Ohio Township	  	15-013012.0000	  	Randall Dennis	  	Caiman Ohio Midstream, LLC

  
 Schedule
3.11(c) 
 34 

											
	 	  	 County, State/

District/

Acreage
	  	Parcel ID #	 	  	 Grantor
	  	 Grantee

					
	28.	  	Monroe, OH
Ohio Township	  	 
 	15-013013.0000
15-012008.0000	 
  	  	Michael Eisenbarth	  	Caiman Ohio Midstream, LLC
					
	29.    	  	Monroe, OH
Ohio Township	  	 
 	15-013013.0000
15-012008.0000	 
  	  	Michael Eisenbarth	  	Caiman Ohio Midstream, LLC
					
	30.	  	Monroe, OH	  	 
 	15-013013.0000
15-012008.0000	 
  	  	 Ohio Township
 Michael
Eisenbarth
	  	Caiman Ohio Midstream, LLC
					
	31.	  	Monroe, OH
Ohio Township	  	 
 	15-013013.0000
15-012008.0000	 
  	  	Michael Eisenbarth	  	Caiman Ohio Midstream, LLC
					
	32.	  	Monroe, OH
Ohio Township	  	 
 	15-013013.0000
15-012008.0000	 
  	  	Michael Eisenbarth	  	Caiman Ohio Midstream, LLC
					
	33.	  	Monroe, OH
Ohio Township	  	 
 	15-013013.0000
15-012008.0000	 
  	  	Michael Eisenbarth	  	Caiman Ohio Midstream, LLC
					
	34.	  	Monroe, OH
Ohio Township	  	 
 	15-005019.0000
15-003001.0000	 
  	  	 15-005019.1000
 Mary Uldine
Boyles n/k/a Mary Uldine Horn
	  	Caiman Ohio Midstream, LLC
					
	35.	  	Monroe, OH
Ohio Township	  	 
 
 	15-005019.0000
15-005019.1000
15-003001.0000	 
 
  	  	Mary Uldine Boyles n/k/a Mary Uldine Horn	  	Caiman Ohio Midstream, LLC
					
	36.	  	Monroe, OH
Ohio Township	  	 
 
 	15-005019.0000
15-005019.1000
15-003001.0000	 
 
  	  	Mary Uldine Boyles n/k/a Mary Uldine Horn	  	Caiman Ohio Midstream, LLC
					
	37.	  	Belmont, OH
Mead Township	  				  	 15-00592.000

Charles Edwin Palmer and Vicki A. Palmer        
	  	Caiman Ohio Midstream, LLC
					
	38.	  	Belmont, OH
Mead Township	  	 	15-00592.000	  	  	Charles Edwin Palmer and Vicki A. Palmer	  	Caiman Ohio Midstream, LLC

  
 Schedule
3.11(c) 
 35 

											
	 	  	 County, State/

District/

Acreage
	  	Parcel ID #	 	  	 Grantor
	  	 Grantee

					
	39.	  	Belmont, OH
Mead Township	  	 	15-00279.000	  	  	Herbert May	  	Caiman Ohio Midstream, LLC
					
	40.	  	Belmont, OH
Mead Township	  	 	15-00279.000	  	  	Herbert May	  	Caiman Ohio Midstream, LLC
					
	41.	  	Belmont, OH
Mead Township	  	 	15-00551.000	  	  	Daniel J.Baker and Donna L. Baker	  	Caiman Ohio Midstream, LLC
					
	42.	  	Belmont, OH
Mead Township	  	 	15-00551.000	  	  	Daniel J.Baker and Donna L. Baker	  	Caiman Ohio Midstream, LLC
					
	43.	  	Belmont, OH
Mead Township	  	 	15-00564.000	  	  	Dena A. Brown, Roger L. Brown, and Charlene Brown	  	Caiman Ohio Midstream, LLC
					
	44.	  	Mead Township	  	 
 	Belmont, OH
15-00564.000	 
  	  	Dena A. Brown, Roger L. Brown, and Charlene Brown	  	Caiman Ohio Midstream, LLC
					
	45.	  	Belmont, OH
Mead Township	  	 	15-00616.000	  	  	Paul R. Guzik Jr.	  	Caiman Ohio Midstream, LLC
					
	46.	  	Belmont, OH
Mead Township	  	 	15-00616.000	  	  	Paul R. Guzik Jr.	  	Caiman Ohio Midstream, LLC

  
 Schedule
3.11(c) 
 36 

 SCHEDULE 3.11(c)(ii) 

GAPS IN RIGHTS-OF-WAY 

None. 

  
 Schedule
3.11(c) 
 37 

 SCHEDULE 3.12 
 INTELLECTUAL PROPERTY 
 None. 

  
 Schedule 3.12

 38 

 SCHEDULE 3.13(a) 

ENVIRONMENTAL MATTERS 
  

	(i)	Pending or Threatened Actions, Suits, Investigations and Proceedings 

 

	1.	The U.S. Environmental Protection Agency (“EPA”) issued a May 23, 2011 Order for Compliance (EPA Docket No. CWA-03-2011-0137DW) alleging violations of
Section 301 of the Clean Water Act. 

  

	2.	EPA issued Caiman and Precision Pipeline, LLC (“Precision”), a consultant retained by Caiman, a September 28, 2011 Order for Compliance (EPA Docket No.
CWA-03-2011-0300DW). 

  

	(iv)	Releases of Hazardous Materials 

  

	1.	Caiman’s fractionation facility near Moundsville in Marshall County, West Virginia is located on a portion of the Hanlin-Allied-Olin Superfund Site.

  

	(v)	Non-compliance with Environmental Laws 

  

	1.	In response to the findings from the February 18, 2011 WVDEP investigation into construction activities in Fish Creek in Wetzel County, West Virginia, Caiman
entered into a December 12, 2011 Consent Order with the WVDEP (Order No. 7467). 

  

	2.	February 22, 2012 Notice of Violation (“NOV”) by the WVDEP alleging that construction activities conducted on behalf of Caiman caused the unauthorized
discharge of sediment into Crows Run. 

  

	(vi)	Required notification or filing by the Company or Contributor with any Governmental Authority under any Environmental Law 

 

	1.	Section III of the Environmental Covenant requires 30-day notice to EPA and West Virginia DEP of the change in control of the Company. 

  
 Schedule
3.13(a) 
 39 

 SCHEDULE 3.14(b) 

EMPLOYEES 
 Provided to
Acquirer in the virtual data room. 

  
 Schedule
3.14(b) 
 40 

 SCHEDULE 3.14(c) 

RIGHTS TO TERMINATE EMPLOYMENT 
 None. 

  
 Schedule
3.14(c) 
 41 

 SCHEDULE 3.15 
 BENEFIT PLANS 
 Contributor Plans 

 

	1.	Contributor has entered into Offer Letters with nearly all of the Covered Employees which generally provide for: (a) base salary; (b) annual bonus
opportunity; (c) long-term incentive plan entitlements; (d) vacation entitlement. 

  

	2.	Contributor Bonus Plans 

  

	3.	 Long-Term Incentive
Awards1 

 

	4.	Caiman Severance Policy 

 Insperity Plans

  

	1.	Adoption Assistance Program 

  

	2.	Pre-Tax Commuter Benefits (WageWorks) 

  

	3.	Basic Life & Personal Accident Insurance (CIGNA) 

  

	4.	Group Universal Life Insurance (CIGNA) 

  

	5.	Disability Insurance (CIGNA) 

  

	6.	Employee Assistance Program (OptumHealth Care24) 

  

	7.	Insperity Health Care FSA Plan 

  

	8.	Insperity Health Savings Account (HSA) Program 

  

	9.	Group Medical Insurance – UHC Choice Plus 500; UHC Choice Plus 1500; UHC Choice Plus 1500 HDHP; UHC Choice Plus 3000 HDHP (UnitedHealthcare)

  

	10.	Group Dental Insurance (UnitedHealthcare) 

  

	11.	Group Vision Insurance (Vision Service Plan) 

 

	1 	 Caiman has given certain Covered Employees long-term incentive awards that will fully vest at Closing. 

  
 Schedule 3.15

 42 

 SCHEDULE 3.16 
 TAXES 
 Caiman Eastern Midstream, LLC is a member of an affiliated or similar group for
Texas and West Virginia franchise tax purposes though the date of the Closing. 
 Caiman Energy, LLC is working on a voluntary disclosure and
resolution with the State of West Virginia to avoid penalties and interest for franchise taxes that were not reported or paid for 2009 and 2010 for the disregarded entity of Caiman Eastern Midstream, LLC. The tax amount due is approximately $130,000
for which Caiman Energy, LLC is responsible. 

  
 Schedule 3.16

 43 

 SCHEDULE 3.17 
 INSURANCE 
  

											
	 Type of Policy (6)
	  	 Underwriter
	  	2012 Limits	 	 	2012 Premium	 
	 General Liability
	  	Arch	  	 	1,000,000	(1)(7) 	 	 	93,753	  
	 GL – Umbrella
	  	Ace	  	 	25,000,000	(7) 	 	 	119,350	  
	 Automobile
	  	Arch	  	 	1,000,000	(1) 	 	 	22,000	  
	 Worker’s Comp.
	  	Indemnity	  	 	1,000,000	(1) 	 	 	—  	  
	 D & O
	  	Chubb /AWAC	  	 	10,000,000	  	 	 	TBD	  
	 Cargo
	  	Lloyd’s	  	 	1,000,000	(1) 	 	 	24,500	(3) 
	 Property – Cryo #1
	  	Liberty /St. Paul	  	 	40,000,000	  	 	 	84,000	  
				
	 Builder’s Risk Insurance Policy
	  		  				 			
	 - Ft. Beeler – Cryo #2
	  	Ironshore	  	 	51,700,000	(4) 	 	 	167,802	  
	 - Ft. Beeler – Cryo #3
	  	TBD	  	 	53,750,000	  	 	 	TBD	  
	 - Ft. Tomlinson Frac #1 (Moundsville)
	  	Liberty Intl.	  	 	50,000,000	  	 	 	156,800	  
				
	 Environmental Liability Insurance Policy
	  		  				 			
	 Environmental Liability (Prior/Existing Events) (Olin site)
	  	 IndianHarbor Insurance Company
	  	 	25,000,000	(5) 	 	 	179,989	  
	 Environmental Liability Sudden and Gradual (Ft. Beeler & Gathering Lines)
	  	 IndianHarbor Insurance Company
	  	 	5,000,000	  	 	 	24,550	  
	 Environmental Liability Sudden and Gradual (Ft. Tomlinson Frac I)
	  	 IndianHarbor Insurance Company
	  	$	10,000,000	  	 	 	7,585	  

 Notes: 

	(1)	Limit per Occurrence. 

	(2)	Worker’s Comp incorporated into Insperity payroll cost. 

	(3)	New coverage to protect assets during transport up to $50,000,000 in asset value. Transport of plants to WV and pipe movements. 

	(4)	Cryo #2 will be covered under the builder’s risk policy until the renewal period next year. 

	(5)	Environmental policy is for a term of 10 years. 

	(6)	Policies cover all Contributor entities. 

	(7)	Contributor will add Buyer as additional insured on Contributor’s current and prior insurance policies with respect to the Company’s assets and operations.

  
 Schedule 3.17

 44 

 SCHEDULE 3.19 
 SUFFICIENCY OF ASSETS 
  

	1.	Those contracts listed on Schedule 3.3(b) that are expected to be assigned from Caiman Energy, LLC to Caiman Eastern Midstream, LLC prior to Closing.

  

	2.	Any assets located in the Dallas office of Contributor used in connection with providing services to the Company under the Transition Services Agreement.

  
 Schedule 3.19

 45 

 SCHEDULE 3.20 
 RELATED-PARTY TRANSACTIONS 
  

	1.	Revolving credit facility under that certain Credit Agreement among Caiman Energy, LLC, each lender from time to time party thereto and Bank of America, N.A. dated
March 31, 2011, not amended. 

  

	2.	Intercompany Loan Agreement between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated December 31, 2011. 

 

	3.	Assignment between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated March 1, 2012 whereby Caiman Energy, LLC assigned its interest to Caiman Eastern
Midstream, LLC in that certain Access Agreement between Caiman Energy, LLC and McElroy Coal Company dated February 20, 2012. 

  

	4.	Those assignments listed on Schedule 3.8(a) whereby Caiman Energy, LLC or Caiman Holdings, LLC assigned its interest in certain Material Contracts to Caiman Eastern
Midstream, LLC. 

  

	5.	Those assignments referenced on Schedule 3.3(b) whereby Caiman Energy, LLC is expected to assign its interest in certain contracts listed on Schedule 3.3(b) to Caiman
Eastern Midstream, LLC prior to Closing. 

  
 Schedule 3.20

 46 

 SCHEDULE 3.21 
 BANK ACCOUNTS; POWERS OF ATTORNEY 
 None. 

  
 Schedule 3.21

 47 

 SCHEDULE 5.1(a) 

CONDUCT AND OPERATIONS (GENERAL) 
 None. 

  
 Schedule
5.1(a) 
 48 

 SCHEDULE 5.1(b) 

CONDUCT AND OPERATIONS (SPECIFIC) 
  

	1.	Contributor expects to settle the following dispute before the Closing Date: L.A. Pipeline Construction Co. Inc., Plaintiff, v. and Caiman Energy, LLC, et al.,
Defendants, Civil Action No. 11-C-24, In the Circuit Court of Marshall County, West Virginia. 

  

	2.	The contracts that are expected to be assigned from Caiman Energy, LLC to Caiman Eastern Midstream, LLC prior to Closing listed on Part II of Schedule 3.3(b).

  
 Schedule
5.1(b) 
 49 

 SCHEDULE 5.5(i) 

FURTHER ASSURANCES 
  

	1.	Those contracts listed on Schedule 3.3(b) that are expected to be assigned from Caiman Energy, LLC to Caiman Eastern Midstream, LLC prior to Closing.

  

	2.	The ROW listed in Schedule 3.11(c)(i) that are expected to be assigned from Caiman Ohio to Caiman Eastern Midstream, LLC prior to Closing. 

  
 Schedule 5.5

 50 

 SCHEDULE 5.5(ii) 

FURTHER ASSURANCES 
 Other
than any transfer of Books and Records pursuant to Section 5.2, the Company will retain any and all property located in its Dallas office. 

  
 Schedule 5.5

 51 

 SCHEDULE 5.7 
 SURETY BONDS 
  

	1.	Cash bond number 5096093 issued to West Virginia Department of Highways District 6 dated June 29, 2011 for the amount of $25,000. 

 

	2.	Cash bond number 4513699 issued to West Virginia Department of Highways District 6 dated November 30, 2009 for the amount of $25,000. 

  
 Schedule 5.7

 52 

 SCHEDULE 5.9 
 RELATED-PARTY TRANSACTIONS 
  

	1.	Assignment between Caiman Energy, LLC and Caiman Eastern Midstream, LLC dated March 1, 2012 whereby Caiman Energy, LLC assigned its interest to Caiman Eastern
Midstream, LLC in that certain Access Agreement between Caiman Energy, LLC and McElroy Coal Company dated February 20, 2012. 

  

	2.	Those assignments listed on Schedule 3.8(a) whereby Caiman Energy, LLC or Caiman Holdings, LLC assigned its interest in certain Material Contracts to Caiman Eastern
Midstream, LLC. 

  

	3.	Those assignments referenced on Schedule 3.3(b) whereby Caiman Energy, LLC is expected to assign its interest in certain contracts listed on Schedule 3.3(b) to Caiman
Eastern Midstream, LLC prior to Closing. 

  
 Schedule 5.9

 53 

 SCHEDULE 7.2(f) 

CONSENTS 
 None.

  
 Schedule
7.2(f) 
 54 

 ASSIGNMENT AGREEMENT 

This Assignment Agreement (this “Assignment”) is made and entered into this
             day of                     , 2012, by Caiman Energy,
LLC, a Delaware limited liability company (“Contributor”). 
 W I T N E S S E T H: 

WHEREAS, Contributor owns all of the outstanding membership interests of Caiman Eastern Midstream, LLC, a Texas limited liability company
(the “Company”); 
 WHEREAS, pursuant to that certain Contribution Agreement between Contributor and
Williams Partners L.P., a Delaware limited partnership (“Acquirer”) dated as of March 19, 2012 (the “Contribution Agreement”), Acquirer is purchasing from Contributor 100% of the membership
interests in the Company (such interests, the “Purchased Interests”); and 
 WHEREAS, Contributor
desires to contribute, transfer and assign all of the Purchased Interests to Acquirer. 
 NOW, THEREFORE, for good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged and confessed, Contributor agrees as follows: 
 1.
Contribution and Assignment. Contributor does hereby CONTRIBUTE, ASSIGN, CONVEY, TRANSFER AND DELIVER to Acquirer, its successors and assigns, to have and to hold forever, the Purchased Interests. 

2. Substitution as Member. From and after the Closing under the Contribution Agreement (the “Effective
Time”), Acquirer shall be substituted for Contributor as the sole member of the Company with respect to the Purchased Interests. From and after the Effective Time, Contributor shall and does hereby withdraw from the Company as a member,
ceases to be a member of the Company and ceases to have or exercise any right or power as a member of the Company. 
 3. Nothing
in this Assignment shall alter any liability or obligation of Contributor or Acquirer arising under the Contribution Agreement, which shall govern the representations, warranties and obligations of the parties thereto with respect to the Purchased
Interests. 
 4. General Provisions. 

(a) Applicable Law. THIS ASSIGNMENT SHALL BE INTERPRETED AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF
TEXAS, WITHOUT GIVING EFFECT TO THE PRINCIPLES OF CONFLICTS OF LAWS OR PRINCIPLES THAT MIGHT REFER THE GOVERNANCE OR CONSTRUCTION OF THIS ASSIGNMENT TO THE LAW OF ANOTHER JURISDICTION. 

  
 1 

 (b) Defined Terms. Capitalized terms used but not specifically
defined herein shall have the same meanings prescribed to such terms in the Contribution Agreement. 
 [Signature Page
Follows] 

  
 2 

 IN WITNESS WHEREOF, this Assignment has been duly executed by the party hereto as of the
date and year first above written. 
  

			
	CONTRIBUTOR:
	
	CAIMAN ENERGY, LLC
		
	By:	 	 
	Name:	 	
	Title:	 	

 [SIGNATURE PAGE TO ASSIGNMENT
AGREEMENT] 

 ESCROW AGREEMENT 

THIS ESCROW AGREEMENT (this “Agreement”), dated
[            ], 2012, is entered into by and among Caiman Energy, LLC, a Delaware limited liability company (“Contributor”), Williams Partners L.P., a Delaware
limited partnership (“Acquirer”), and Wells Fargo N.A., a [            ] banking corporation (“Escrow Agent”). Contributor, Acquirer and Escrow
Agent are referred to herein sometimes individually as a “Party” and collectively as the “Parties.” Capitalized terms used but not defined in this Agreement have the meanings assigned to them in the Contribution
Agreement (as defined below). 
 RECITALS 
 A. Contributor and Acquirer entered into that certain Contribution Agreement, dated March [    ], 2012 (the “Contribution Agreement”), under which Acquirer
agreed to purchase from Contributor, and Contributor agreed to sell, all of the outstanding membership interests in Caiman Eastern Midstream, LLC, a Texas limited liability company (the “Company”). 

B. Under Section 2.2(b)(ii) of the Contribution Agreement, in connection with the Closing thereunder, Acquirer and Contributor
agreed to execute and deliver this Agreement and deposit in the Escrow Account (as defined below) [            ] WPZ Units (the “Escrow Units”) to be available to
satisfy certain obligations of Contributor that may arise under the Contribution Agreement after the Closing. 
 C. The Parties
desire to set forth further terms and conditions in addition to those set forth in the Contribution Agreement relating to the operation of the Escrow Account. 
 AGREEMENT 
 NOW, THEREFORE, in consideration of the foregoing Recitals, the
mutual covenants and agreements set forth herein, the receipt and sufficiency of which are hereby acknowledged, intending to be legally bound, the parties hereby agree as follows: 
 1. Appointment. Acquirer and Contributor hereby appoint Escrow Agent as their escrow agent for the purposes set forth herein, and Escrow Agent hereby accepts such appointment under the terms and
conditions set forth herein. 
 2. Escrow Account. At the Closing, Acquirer shall deliver or cause to be delivered to Escrow Agent, in
accordance with Section 2.2(b)(ii) of the Contribution Agreement, the Escrow Units in certificated form, as more fully identified on Schedule 3 attached hereto, to be held in Contributor’s name by Escrow Agent in a separate account
designated and maintained by Escrow Agent (the “Escrow Account”) for the benefit of Acquirer and Contributor as provided in this Agreement and the Contribution Agreement. Escrow Agent shall provide notice to Contributor and Acquirer
that it is in possession of the Escrow Units upon receipt thereof and shall hold the Escrow Units in the Escrow Account pursuant to the terms of this Agreement. 
 3. Rights of Ownership, Distributions and Voting. 
 (a) While the Escrow
Units remain in escrow pursuant to this Agreement, Contributor will retain and will be able to exercise all incidents of ownership of said Escrow Units that are not inconsistent with the terms and conditions of this Agreement. The Escrow Units held
pursuant to this Agreement will be shown as issued and outstanding on the books and records of Acquirer. 

 (b) During the term of this Agreement, any dividends or other distributions
(“Distributions”) made in respect of the Escrow Units (whether made in cash, WPZ Units or other equity securities) shall be paid (or issued) directly to Contributor by Acquirer, free and clear of any and all Liens, and shall not be
placed into the Escrow Account or be subject to this Escrow Agreement. To the extent that any Distributions are delivered to Escrow Agent, Escrow Agent is authorized to and shall deliver to Contributor such Distributions within five
(5) Business Days of Escrow Agent receiving such Distributions (i) in the case of a cash Distribution, by wire transfer to the account or accounts specified in writing by Contributor to Escrow Agent, or (ii) in the case of a
Distribution paid in WPZ Units or other equity securities, by delivery of Common Units or such other equity securities to the address or address specified in writing by Contributor to Escrow Agent. 

(c) During the term of this Agreement, Contributor shall have the right to exercise all of the voting rights pertaining to the Escrow
Units on all matters submitted to the unitholders of Acquirer. Acquirer shall deliver directly to Contributor, and not to Escrow Agent, all notices, solicitations or other documents or information issued to Acquirer’s unitholders generally with
respect to the WPZ Units, including, but not limited to, all proxy materials (collectively, “Voting Materials”). To the extent that any Voting Materials are sent to Escrow Agent, Escrow Agent shall promptly deliver such Voting
Materials to Contributor at Contributor’s address specified in Section 11 or otherwise specified in writing by Contributor to Escrow Agent. 
 4. Disposition. 
 (a) Pending Claims Account. Upon Escrow
Agent’s receipt of a written notice of a claim (each, a “Claim”) for indemnity or reimbursement pursuant to and in accordance with Section 9.2 of the Contribution Agreement (each, a “Claim Notice”), the
number of Escrow Units set forth in the Claim Notice corresponding to the amount of such Claim shall immediately be deemed to be part of a pending claims account (the “Pending Claims Account”). Each Claim Notice shall include the
number of Escrow Units to be deemed part of the Pending Claims Account, which number of Escrow Units shall be equal to the quotient of (x) the aggregate dollar amount of such Claim divided by (y) the value of each Escrow Unit, which value
shall be deemed to be equal to the thirty (30) day, volume-weighted average trading price of the Escrow Units ending two (2) trading days prior to the date of such Claim Notice. In the case of fractional Escrow Units, the number of Escrow
Units shall be rounded up to the nearest whole number. Escrow Agent shall have no obligation to calculate the number of Escrow Units to be deemed part of the Pending Claims Account pursuant to a Claim Notice. For the avoidance of doubt, no separate
certificate(s) need be created or held for such Escrow Units deemed part of the Pending Claims Account and no certificates representing Escrow Units in the Pending Claims Account need be physically segregated. Escrow Agent shall release and disburse
the Escrow Units, whether or not deemed in the Pending Claims Account, as follows: 
 (i) promptly upon, and in any event no
later than three (3) Business Days after receipt of, and in accordance with, joint written instructions executed by both Acquirer and Contributor (a “Joint Written Instruction”); or 

  
 2 

 (ii) as promptly as practicable, and in any event no later than three (3) Business Days
after Escrow Agent’s receipt of, and in accordance with, a final, non-appealable judgment of a court of competent jurisdiction (a “Final Court Order”); or 

(iii) after fifteen (15) months following the Closing Date, pursuant to a Contributor Release Notice delivered pursuant to
Section 4(c). 
 (b) Release of Escrow Units. 

(i) If Escrow Agent receives direction pursuant to a Joint Written Instruction or a Final Court Order for the disbursement of Escrow
Units from the Escrow Account or Pending Claims Account at any time or receives from Contributor a Contributor Release Notice (as defined below), Escrow Agent shall disburse all or a portion of the Escrow Units in accordance with such Joint Written
Instruction, Final Court Order or Contributor Release Notice. Each such Joint Written Instruction, Final Court Order or Contributor Release Notice requiring the disbursement of Escrow Units shall (i) identify the number of Escrow Units to be
disbursed by Escrow Agent, (ii) identify the name of the parties to whom such Escrow Units are to be disbursed, and (iii) include instructions (“Delivery Instructions”) to deliver the appropriate certificate(s) held by
Escrow Agent in the Escrow Account to Acquirer’s transfer agent, Computershare Trust Company, N.A. (the “Transfer Agent”), for exchange and/or cancellation. Concurrently with the delivery of each Joint Written Instruction,
Final Court Order or Contributor Release Notice containing Delivery Instructions, Acquirer and Contributor shall deliver to the Transfer Agent, with a copy to Escrow Agent, a joint written instruction directing the Transfer Agent to (A) cancel
the certificate(s) representing Escrow Units it receives from Escrow Agent, (B) issue and deliver to Escrow Agent new physical certificates, if any, in Contributor’s name representing such WPZ Units to be returned and continued to be held
by Escrow Agent in accordance with such instructions, and/or (C) issue and deliver to Contributor or its designee in book-entry form (unless otherwise requested by Contributor) the number of WPZ Units, if any, to be delivered to Contributor in
accordance with such instructions (each, a “Transfer Agent Instruction”). Contributor and Acquirer shall take such further actions, including the delivery of notices and documents required by the Transfer Agent, as are reasonably
necessary to effectuate the foregoing. 
 (ii) No later than two (2) Business Days after the expiration of the Escrow
Period (as defined below), Acquirer and Contributor shall deliver to Escrow Agent a Joint Written Instruction to transfer to Contributor all of the remaining Escrow Units held in the Escrow Account that have not been deemed as part of the Pending
Claims Account. 
 (iii) Contributor shall deliver a fully executed stock power to Escrow Agent on the Closing Date in the form
reasonably acceptable to Acquirer and Contributor. Any Escrow Units to be transferred to Acquirer from Escrow Agent on behalf of any Acquirer Indemnified Party shall be accompanied by such fully executed stock power. Contributor agrees to execute
and deliver such other documents, certificates, agreements and other writings (including stock powers) and to take such other actions as may be necessary or desirable in order to transfer the Escrow Units to Acquirer as contemplated by this
Agreement. 

  
 3 

 (iv) Any Escrow Units that have been deemed as part of the Pending Claims Account at the end
of the Escrow Period shall be retained by Escrow Agent pursuant to the terms of this Agreement until such time as Escrow Agent is instructed to distribute such Escrow Units, if any, pursuant to a Joint Written Instruction or Final Court Order.

 (v) If Contributor satisfies a Claim in cash in accordance with Section 9.2(e) of the Contribution Agreement and Escrow
Units have been deemed as part of the Pending Claims Account in respect of such Claim, Acquirer and Contributor shall deliver a Joint Written Instruction to Escrow Agent releasing such Escrow Units to the Escrow Account or to Contributor, as
applicable. 
 (vi) Neither Acquirer nor Contributor shall provide any notice or instruction to the Transfer Agent in
contravention of a Transfer Agent Instruction. 
 (vii) For the purposes of this Agreement, the term “Escrow
Period” shall mean the period beginning on the Closing Date and ending on the later to occur of (A) fifteen (15) months following the Closing Date and (B) the date on which all obligations of Contributor with respect to any
claim for indemnity or reimbursement made by an Acquirer Indemnified Party pursuant to Section 9.3 or Section 9.4 of the Contribution Agreement on or prior to the date that is fifteen (15) months after the Closing Date have been
settled or resolved. 
 (c) In the event that Acquirer fails to timely execute a Joint Written Instruction under
Section 4(b)(ii) after the expiration of the Escrow Period, Contributor may give unilateral written notice (“Contributor Release Notice”) to Escrow Agent with a copy to Acquirer directing Escrow Agent to release and
transfer to Contributor all of the remaining Escrow Units held in the Escrow Account that have not been deemed as part of the Pending Claims Account in the case of a notice under Section 4(b)(ii) certifying that Acquirer has failed,
after written notice from Contributor, to execute a Joint Written Instruction under Section 4(b)(ii) and Escrow Agent shall be entitled to and shall on the first Business Day after three (3) Business Days following receipt of the
Contributor Release Notice release and disburse the applicable Escrow Units as directed in the Contributor’s Release Notice unless Escrow Agent and Contributor have received during such three (3) Business Day period a written notice from
Acquirer wherein Acquirer objects to the release of such Escrow Units, such notice to include a description of the legal basis supporting Acquirer’s objection to the Escrow Units being released. 

(d) Substitution of Cash for Escrow Units. At any time during the Escrow Period, with the prior written consent of Acquirer (such
consent not to be unreasonably withheld), Contributor may elect by written notice to the Escrow Agent and Acquirer (“Cash Substitution Notice”) elect to substitute cash for all of the Escrow Units held in the Escrow Account by
depositing cash into the Escrow Account in exchange for Escrow Units with the Escrow Units subject to substitution being valued at a value equal to the thirty (30) day volume weighted average trading price of Escrow Units ending two trading
days prior to the date of release of such Escrow Units from the Escrow Account in exchange for cash. Upon Acquirer’s receipt of the Cash Substitution Notice, the parties agree that Section 4(a) and Section 4(b) shall be
replaced in its entirety by the provisions set forth in Schedule 4 attached hereto. 

  
 4 

 5. Escrow Agent. 
 (a) Duties. Escrow Agent shall have only those duties as are specifically and expressly provided herein, which shall be deemed purely ministerial in nature, and no other duties shall be implied.
Escrow Agent shall neither be responsible for, nor chargeable with, knowledge of, nor have any requirements to comply with, the terms and conditions of any other agreement, instrument or document between the Parties, in connection herewith, if any,
including without limitation the Contribution Agreement, nor shall Escrow Agent be required to determine if any person or entity has complied with the Contribution Agreement, nor shall any additional obligations of Escrow Agent be inferred from the
terms of the Contribution Agreement, even though reference thereto may be made in this Agreement. In the event of any conflict between the terms and provisions of this Agreement and those of the Contribution Agreement, any schedule or exhibit
attached to the Contribution Agreement, or any other agreement, the terms and conditions of this Agreement shall control as between Escrow Agent, on the one hand, and Contributor and Acquirer, on the other hand; provided, however, that
the terms and conditions of the Contribution Agreement shall control as between Contributor and Acquirer. Escrow Agent may rely upon and shall not be liable for acting or refraining from acting upon any written notice, document, instruction or
request furnished to it hereunder and believed in good faith by it to be genuine and to have been signed or presented by the proper party or parties without inquiry and without requiring substantiating evidence of any kind. Escrow Agent shall not be
liable to Acquirer or Contributor, any beneficiary or other person for refraining from acting upon any instruction setting forth, claiming, containing, objecting to, or related to the transfer or distribution of the Escrow Units, or any portion
thereof, unless such instruction shall have been delivered to Escrow Agent in accordance with this Agreement and Escrow Agent has been able to satisfy any applicable security procedures as may be required hereunder. Escrow Agent shall be under no
duty to inquire into or investigate the validity, accuracy or content of any such document, notice, instruction or request. Escrow Agent shall have no duty or obligation to confirm or verify the accuracy or correctness of any amounts deposited with
it hereunder. 
 (b) No Liability. Escrow Agent shall not be liable for any action taken, suffered or omitted to be taken
by it in good faith except to the extent that a final adjudication of a court of competent jurisdiction determines that Escrow Agent’s gross negligence or willful misconduct was the primary cause of any loss. Escrow Agent may execute any of its
powers and perform any of its duties hereunder directly or through Affiliates or agents; provided that Escrow Agent shall be responsible for the performance of such duties to the standards set forth herein. Escrow Agent will not be liable for
the negligence or misconduct of any Affiliates or agents selected by it in good faith and with reasonable care, except to the extent that a final adjudication of a court of competent jurisdiction determines that Escrow Agent’s or its
Affiliate’s or agent’s gross negligence or willful misconduct was the primary cause of any loss. Escrow Agent may consult with counsel, accountants and other skilled persons selected with reasonable care and retained by it, at the expense
of Acquirer and Contributor, which expense shall be paid fifty percent (50%) by Contributor and fifty percent (50%) by Acquirer, as to any matter relating to this Agreement, and Escrow Agent shall not incur any liability in acting in good
faith in accordance with any advice from such counsel. If Escrow Agent shall be uncertain or believe there is some ambiguity 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 Agreement, it shall be entitled to refrain from taking any action and its sole obligation shall be to keep safely all property held in escrow until it shall be given a direction in writing by the
Parties which eliminates such ambiguity or uncertainty to the satisfaction of Escrow Agent or by a Final Court 

  
 5 

 
Order. To the extent practical, the Parties agree to pursue any redress or recourse in connection with any dispute without making Escrow Agent a party to the same. Anything in this Agreement to
the contrary notwithstanding, in no event shall Escrow Agent be liable for special, incidental, punitive, indirect or consequential loss or damage of any kind whatsoever (including but not limited to lost profits), even if Escrow Agent has been
advised of the likelihood of such loss or damage and regardless of the form of action. 
 6. Succession. 

(a) Resignation. Escrow Agent may resign and be discharged from its duties or obligations hereunder by giving thirty
(30) days’ advance notice in writing of such resignation to the Parties specifying a date when such resignation shall take effect. If the Parties have failed to appoint a successor escrow agent prior to the expiration of thirty
(30) days following receipt of the notice of resignation, Escrow Agent may petition any court of competent jurisdiction for the appointment of a successor escrow agent or for other appropriate relief, and any such resulting appointment shall be
binding upon all of the Parties hereto. Escrow Agent’s sole responsibility after such thirty (30) day notice period expires shall be to hold the Escrow Units (without any obligation to reinvest the same) and to deliver the same to a
designated substitute escrow agent, if any, or in accordance with the directions of a Final Court Order, at which time of delivery Escrow Agent’s obligations hereunder shall cease and terminate, subject to the provisions of
Section 8. 
 (b) Merger. Any entity into which Escrow Agent may be merged or converted or with which it may
be consolidated, or any entity to which all or substantially all the escrow business may be transferred, shall be Escrow Agent under this Agreement without further act. 
 7. Compensation and Reimbursement. Acquirer and Contributor agree severally, not jointly, (a) to pay Escrow Agent upon execution of this Agreement and from time to time thereafter reasonable
compensation for the services to be rendered hereunder as described in Schedule 1 attached hereto, and (b) to pay or reimburse Escrow Agent upon request for all reasonable and documented out-of-pocket expenses, disbursements and
advances, including, without limitation, reasonable attorney’s fees and expenses, incurred, or made by it in connection with the performance, modification, and termination of this Agreement (without duplication of any amounts to be paid in
accordance with Section 8). Escrow Agent shall send a written request to Contributor and Acquirer for such expenses, which expenses shall be paid fifty percent (50%) by Contributor and fifty percent (50%) by Acquirer. Annual
fees are due annually in advance for each year or any part thereof. Expenses payable pursuant to this Section 7 shall be paid fifteen (15) Business Days after receipt of the written request. The obligations contained in this
Section 7 shall survive the termination of this Agreement and the resignation, replacement or removal of Escrow Agent. 
 8.
Indemnity. Acquirer and Contributor shall severally, and not jointly, indemnify, defend, and hold harmless Escrow Agent and its Affiliates and their respective successors, assigns, directors, agents and employees (the
“Indemnitees”) from and against and reimburse Escrow Agent for all reasonable attorneys’ and consultants’ fees and expenses and court costs and all Damages arising out of or in connection with (a) Escrow Agent’s
execution and performance of this Agreement, the enforcement of any rights or remedies under or in connection with this Agreement, or as may arise by reason of any act, omission, or error of the Indemnitee, except in the case of any Indemnitee to
the extent that such Losses are finally adjudicated by a court of competent jurisdiction to have been caused by the , gross negligence or willful misconduct of such Indemnitee, or (b) Escrow Agent’s action in accordance with any Joint
Written Instruction. The indemnity obligations set forth in this Section 8 shall survive the resignation, replacement, or removal of Escrow Agent or the termination of this Agreement and Acquirer and Contributor agree that liability
pursuant to this Section 8 shall be allocated fifty percent (50%) to Contributor and fifty percent (50%) to Acquirer. 

  
 6 

 9. Patriot Act Disclosure. The Parties acknowledge that in order to help the United States government
fight the funding of terrorism and money laundering activities, pursuant to Federal regulations that became effective on October 1, 2003 (Section 326 of the USA PATRIOT Act) requires all financial institutions to obtain, verify, record and
update information that identifies each person establishing a relationship or opening an account. The Parties agree that they will provide to Escrow Agent such information as it may request, from time to time, in order for Escrow Agent to satisfy
the requirements of the USA PATRIOT Act, including but not limited to the name, address, tax identification number and other information that will allow it to identify the individual or entity who is establishing the relationship or opening the
account and may also ask for formation documents such as articles of incorporation or other identifying documents to be provided. 
 10.
Force Majeure. Escrow Agent shall not incur any liability for not performing any act or fulfilling any duty, obligation or responsibility hereunder by reason of any occurrence beyond the control of Escrow Agent (including but not limited to
any act or provision of any present or future law or regulation or governmental authority, any act of God or war, civil unrest, local or national disturbance or disaster, any act of terrorism, or the unavailability of the Federal Reserve Bank wire
or facsimile or other wire or communication facility). 
 11. Notices. All communications hereunder shall be in writing and except for
communications from the Parties setting forth, claiming, containing, objecting to, or in any way related to the transfer or distribution of units or funds, including but not limited to transfer instructions pursuant to Section 4 of this
Agreement (all of which shall be specifically governed by Section 12 below), shall be deemed to be duly given and received: (a) upon delivery, if delivered personally, or upon confirmed transmittal, if by facsimile; or (b) on
the next Business Day if sent prepaid by overnight, nationally-recognized courier to the appropriate notice address set forth below or at such other address as any Party may have furnished to the other Parties in writing by registered mail, return
receipt requested. 
 If to Acquirer: 
 Williams Partners L.P. 
 One Williams Center 

Tulsa, Oklahoma 74172-0172 
 Attention: Senior Vice President, Corporate Strategic Development 
 Facsimile:
(918) 573-4900 
 with copies to (which shall not constitute notice): 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, Oklahoma 74172-0172 

Attention: General Counsel 
 Facsimile: (918) 573-5942 
 Gibson, Dunn & Crutcher LLP 

1801 California Street 
 Suite 4200 
 Denver, CO 80202 

Attention: Steven Talley 
 Facsimile: (303) 298-5907 
 if to Contributor: 

Caiman Energy, LLC 
 5949 Sherry Lane, Suite 1300 
 Dallas, TX 75225 

Attention: Tony Strehlow 
 Facsimile: (214) 580-3750 

  
 7 

 with a copy to (which shall not constitute notice): 

Vinson & Elkins LLP 
 1001 Fannin St., Suite 2500 
 Houston, TX 77002-6760 

Attention: Douglas E. McWilliams 
 Facsimile: (713) 615-5725 
 If to Escrow Agent: 

Wells Fargo N.A. 
 [            ] 

Attention: [        ] 

Fax No.: [        ] 
 Notwithstanding the above, in the case of communications delivered to Escrow Agent, such communications shall be deemed to have been given on the date received by an officer of Escrow Agent or any
employee of Escrow Agent who reports directly to any such officer at the above-referenced office. In the event that Escrow Agent, in its reasonable discretion, shall determine that an emergency exists, Escrow Agent may use such other means of
communication as Escrow Agent deems reasonably appropriate. For purposes of this Agreement, “Business Day” shall mean any day other than a Saturday, Sunday, or any other day on which Escrow Agent located at the notice address set
forth above is authorized or required by law or executive order to remain closed. 
 12. Security Procedures. 

(a) Instructions. Notwithstanding anything to the contrary as set forth in Section 11, any and all instructions
setting forth, claiming, containing, objecting to, or in any way related to the distribution of Escrow Units, including but not limited to any such transfer instructions that may otherwise be set forth in a Joint Written Instruction, may be given to
Escrow Agent only by confirmed facsimile and no instruction for or related to the transfer of the Escrow Units, or any portion thereof, shall be deemed delivered and effective unless Escrow Agent shall have received such instruction by facsimile at
the number provided to the Parties by Escrow Agent in accordance with Section 11 and as further evidenced by a confirmed transmittal to that number. 
 (b) Confirmation. If Escrow Units transfer instructions are so received by Escrow Agent by facsimile, Escrow Agent is authorized to seek confirmation of such instructions by telephone call-back to
the person or persons designated on Schedule 2 hereto, and Escrow Agent may rely upon the confirmation of anyone purporting to be the person or persons so designated. The persons and telephone numbers for call-backs may be changed only in a
writing actually 

  
 8 

 
received and acknowledged by Escrow Agent. If Escrow Agent is unable to contact any of the authorized representatives identified in Schedule 2, Escrow Agent is hereby authorized both to
receive written instructions from and seek confirmation of such instructions by telephone call-back to any one or more of Contributor’s or Acquirer’s executive officers, (each such person, an “Executive Officer”), as
Escrow Agent may select. Such “Executive Officer” shall deliver to Escrow Agent a fully executed incumbency certificate, and Escrow Agent may rely, to the extent reasonable under the circumstances, upon the confirmation of anyone
purporting to be any such officer. Escrow Agent may rely solely upon any account numbers or similar identifying numbers provided by Contributor and Acquirer. 
 (c) Change in Instructions. Any Party may unilaterally modify only its funds transfer instructions in this Section 12, by written notice to Escrow Agent. The Parties acknowledge that
the security procedures set forth in this Section 12 are commercially reasonable. 
 13. Compliance with Court Orders. If any
Escrow Units shall be attached, garnished or levied upon by any court order, or the delivery thereof shall be stayed or enjoined by an order of a court, or any order, judgment, or decree shall be made or entered by any court order affecting the
property deposited under this Agreement, Escrow Agent is hereby expressly authorized, in its reasonable discretion, to obey and comply with all writs, orders or decrees so entered or issued, which it is advised by legal counsel of its own choosing
is binding upon it, whether with or without jurisdiction, and if Escrow Agent obeys or complies with any such writ, order or decree it shall not be liable to any of the Parties or to any other person, entity, firm or corporation, by reason of such
compliance notwithstanding such writ, order or decree be subsequently reversed, modified, annulled, set aside or vacated. 
 14. Other
Provisions. Except for changes by a Party of its respective funds transfer instructions as provided in Section 12(c), the provisions of this Agreement may be waived, altered, amended or supplemented, in whole or in part, only by a
writing signed by the Parties. Neither this Agreement nor any right or interest hereunder may be assigned in whole or in part by Escrow Agent or any Party, except as provided in Section 6, without the prior consent of Escrow Agent and
the other Parties. This Agreement shall be governed by and construed under the laws of the State of Texas. Each Party and Escrow Agent irrevocably waives any objection on the grounds of venue, forum non-conveniens or similar grounds and irrevocably
consents to service of process by mail or in any other manner permitted by applicable Law and consents to the jurisdiction of the United States District Court for the Northern District of Texas or any Texas State court sitting in Dallas, Texas. To
the extent that in any jurisdiction either Party may now or hereafter be entitled to claim for itself or its assets, immunity from suit, execution attachment (before or after judgment), or other legal process, such Party shall not claim, and it
hereby irrevocably waives, such immunity. Escrow Agent and the Parties further hereby waive any right to a trial by jury with respect to any lawsuit or judicial proceeding arising or relating to this Agreement. This Agreement may be executed in one
or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. All signatures of the Parties to this Agreement may be transmitted by facsimile, and such facsimile will, for
all purposes, be deemed to be the original signature of such party whose signature it reproduces, and will be binding upon such party. If any provision of this Agreement is determined to be prohibited or unenforceable by reason of any applicable
Law, then such provision shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions thereof, and any such prohibition or unenforceability in such jurisdiction
shall not invalidate or render unenforceable such provisions in any other jurisdiction. A person who is not a party to this Agreement shall have no right to enforce any term of this Agreement. The Parties represent, warrant, and covenant that each
document, notice, instruction or request provided by such Party to Escrow Agent shall comply with applicable Laws. Where, however, the conflicting provisions of any such applicable Law may be waived, they are hereby irrevocably waived by the Parties
to the fullest extent permitted by law, to the end that this Agreement shall be enforced as written. Nothing in this Agreement, whether express or implied, shall be construed to give to any person or entity other than the Parties any legal or
equitable right, remedy, interest or claim under or in respect of this Agreement or any funds escrowed hereunder. 

[Signature page follows.] 

  
 9 

 IN WITNESS WHEREOF, the Parties have executed this Agreement as of the date set forth above.

  

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	Williams Partners GP LLC,
		 	its General Partner

  

					
			
		 	By:	 	 
		 	Name:	 	
		 	Title:	 	

  

			
	CAIMAN ENERGY, LLC
		
	By:	 	 
	Name:	 	
	Title:	 	

  

			
	WELLS FARGO N.A., as Escrow Agent
		
	By:	 	 
	Name:	 	
	Title:	 	

 SIGNATURE PAGE 

TO 

ESCROW AGREEMENT 

 SCHEDULE 1 

ESCROW AGENT FEES 

Escrow Agent Acceptance Fee: $[        ] 
 (One-time fee payable at Closing) 
 Covers the acceptance of Wells Fargo N.A. to act as
Escrow Agent; the study and consideration of [the agency documents and other] Transaction Documents and the establishment of the necessary accounts and procedures. 
 Escrow Agent Annual Administration Fee: $[        ] 
 (Payable annually in advance for each year or any portion thereof). 
 Includes day-to-day
administration services for Escrow Agent including receipt and safe keeping of escrowed property, collection of income, disbursements, monthly reporting, tax reporting and filing, etc. 
 Transaction Charges: 
  

	 	•	 	 Investment Transactions: $[        ] 

 

	 	•	 	 Wire Transfers: $[        ] 

 Legal Counsel Fee: At cost 

 SCHEDULE 2 

Telephone Number(s) and authorized signature(s) for 
Person(s) Designated to give Unit Transfer Instructions 

If from Contributor: 
  

									
	 	  	Name	  	Telephone Number	  	Signature	  	 
	1.	  	[        ]	  	[        ]	  	 	  	
					
	2.	  	[        ]	  	[        ]	  	 	  	

 If from Acquirer: 
  

									
	 	  	Name	  	Telephone Number	  	Signature	  	 
	1.	  	[        ]	  	[        ]	  	 	  	
					
	2.	  	[        ]	  	[        ]	  	 	  	

 Telephone Number(s) for Call-Backs and 
 

Person(s) Designated to Confirm Unit Transfer Instructions 
 If from Contributor: 
  

									
	 	  	Name	  	Telephone Number	  	 	  	 
	1.	  	[        ]	  	[        ]	  		  	
					
	2.	  	[        ]	  	[        ]	  		  	

 If from Acquirer: 
  

									
	 	  	Name	  	Telephone Number	  	 	  	 
	1.	  	[        ]	  	[        ]	  		  	
					
	2.	  	[        ]	  	[        ]	  		  	

 SCHEDULE 3 

ESCROW UNITS 
 Certificate
Number [        ], representing [        ] common units representing limited partner interests of Williams Partners L.P., issued in the name of Caiman
Energy, LLC. 

 SCHEDULE 4 

Replacement Section 4(a) and Section 4(b) 
 [To be inserted prior to Closing] 

 NON-COMPETITION AND NON-SOLICITATION AGREEMENT 

THIS NON-COMPETITION AND NON-SOLICITATION AGREEMENT (this “Agreement”) dated as of
[            ], 2012 is entered into by and among Williams Partner L.P., a Delaware limited partnership (“Acquirer”), and [Jack Lafield and his Affiliates]1 (the “Restricted Party.”) Each of the parties to
this Agreement is sometimes referred to individually in this Agreement as a “Party” and all of the parties to this Agreement are sometimes collectively referred to in this Agreement as the “Parties.” 

RECITALS: 

A. Reference is made to that certain Contribution Agreement dated as of March 19, 2012 (as amended, restated or otherwise modified
from time to time, the “Contribution Agreement”) by and among Acquirer and Caiman Energy, LLC, a Delaware limited liability company (“Contributor”), pursuant to which Contributor agreed to contribute, assign,
transfer, convey and deliver all of the outstanding membership interests of Caiman Eastern Midstream, LLC, a Texas limited liability company (the “Company”) to Acquirer pursuant to the terms and conditions thereof (the
“Transaction”). 
 B. Immediately prior to the consummation of the Transaction, [Jack
Lafield is the President and Chief Executive Officer of Contributor].2 
 C. In connection with the Transaction and pursuant to the terms and conditions
of the Contribution Agreement, the Restricted Party will derive, either directly or indirectly, substantial benefits from the Transaction and the other transactions contemplated by the Contribution Agreement. 

D. The Restricted Party acknowledges and agrees that following the Transaction, Acquirer and its Affiliates would be irreparably damaged
if the Restricted Party were to provide certain services to, or otherwise participate in, the business of any Person engaging in the Restricted Business (as hereafter defined) within the Territory (as hereafter defined), and that such action by the
Restricted Party would result in a significant loss by Acquirer and its Affiliates, successors or assigns. 
 E. The execution,
delivery and continued existence and enforceability of this Agreement is a material inducement to the willingness of Acquirer to enter into the Contribution Agreement. 
 F. Capitalized terms used herein and not otherwise defined herein shall have the meanings set forth in the Contribution Agreement. 

 
  

	1 	 Form is to be adapted for other management Restricted Parties: Stephen L. Arata, Richard D. Moncrief and Danny L. Thompson.

	2 	 To be adapted to describe the role of the Restricted Party at Contributor. 

 AGREEMENT 
 NOW, THEREFORE, in consideration of the foregoing Recitals, the covenants and agreements set forth herein, and other fair, adequate and valuable consideration (including the consideration delivered
pursuant to the Transaction), the receipt and sufficiency of which are hereby acknowledged, intending to be legally bound, the parties hereby agree as follows: 
 1. Non-Competition and Non-Solicitation. For a period beginning on the date hereof and expiring on the two (2) year anniversary of the Closing (the “Restricted Period”), the
Restricted Party acknowledges and agrees that it shall not and shall cause its Affiliates not to, directly or indirectly through any Person or contractual arrangement: 
 (a) engage in any gas gathering, processing, fractionation or liquid hydrocarbon business anywhere in the Territory that is of the kind of the businesses currently operated or currently intended by the
Company to be operated by the Company (the “Restricted Business”), or perform management, executive or supervisory functions with respect to, own, operate, join, control, render financial assistance to, receive any economic benefit
from, exert any influence upon, participate in, render services or advice to, or as applicable and within its control, allow any of its officers or employees to be connected as an officer, employee, partner, member, stockholder, consultant or
otherwise with, any business or Person that competes in whole or in part with the Restricted Business; 
 (b) solicit, recruit
or hire any person who at any time after the date of the Contribution Agreement becomes a Transferred Employee; provided that the foregoing shall not prohibit the Restricted Party or any of its Affiliates from (A) hiring a Transferred
Employee who responds to a general solicitation to the public of general advertising or similar methods of solicitation by search firms not specifically directed at Transferred Employees or (B) soliciting, recruiting or hiring any Transferred
Employee who has ceased to be employed or retained by the Company, Acquirer or any of their respective Affiliates for at least twelve (12) months; or 
 (c) approach or seek business in the Territory constituting the Restricted Business from any Customer (as hereinafter defined), refer business in the Territory constituting the Restricted Business from
any Customer to any Person or be paid commissions based on sales from business in the Territory constituting the Restricted Business received from any Customer by any Person (it being understood that, for purposes of this Section 1(c),
the term “Customer” means any Person to which the Company provided products or services during the twelve (12) month period prior to the Closing Date; provided that the foregoing shall not prohibit any referral of
business by the Restricted Party to the Company or Acquirer. 
 (d) For purposes hereof, “Territory” means and
includes Pennsylvania (except the Utica Shale in the Counties of Lawrence, Mercer, Crawford and Erie) and West Virginia. 
 2.
Exceptions. 
 Notwithstanding Section 1 to the contrary, nothing herein shall be deemed to prohibit:

  
 2 

 (a) the Restricted Party from owning less than five percent (5%) of any class of
securities traded on a national stock exchange issued by any Person engaged in the Restricted Business; 
 (b) the Restricted
Party from acquiring the equity securities or assets of any Person of which less than twenty percent (20%) of its revenues are attributable to the Restricted Business; and 

(c) the Restricted Party from conducting and continuing its business operations of the kind currently conducted (including fulfillment of
existing obligations under contracts currently in effect) in the Counties of Greene, Fayette, Somerset, Bedford, Indiana, Clearfield, Cambria and Blair in Pennsylvania and Preston County in West Virginia. 

3. Enforceability and Breaches. 
 (a) If a court of competent jurisdiction determines that the character, duration or geographical scope of the provisions of this Agreement are unreasonable, it is the intention and the agreement of the
Parties that these provisions shall be construed by the court in such a manner as to impose only those restrictions on the Restricted Party’s conduct that are reasonable in light of the circumstances and as are necessary to assure to Acquirer
the benefits of this Agreement. If, in any judicial proceeding, a court shall refuse to enforce all of the separate covenants of this Agreement because taken together they are more extensive than necessary to assure to Acquirer the intended benefits
of this Agreement, it is expressly understood and agreed by the Parties that the provisions of this Agreement that, if eliminated or reformed, would permit the remaining separate provisions to be enforced in such proceeding, shall be deemed
eliminated or reformed as the case may be, for the purposes of such proceeding, from this Agreement. 
 (b) Each Party
acknowledges any breach by the Restricted Party of any provision of this Agreement may result in irreparable injury to Acquirer. The Restricted Party acknowledges that, in the event of such a breach, in addition to all other remedies available at
Law, Acquirer shall be entitled to seek equitable relief, including injunctive relief, as well as such other remedies as may be available at law and equity. The Restricted Party has independently consulted with its counsel and after such
consultation agrees that the covenants set forth in this Agreement are reasonable and proper to protect the legitimate interest of Acquirer. 

4. Amendments and Waivers. 
 (a) Any provision of this Agreement may be amended or waived if, but only if, such amendment or waiver is in writing and is signed, in the case of an amendment, by each Party to this Agreement, or in the
case of a waiver, by the Party against whom the waiver is to be effective. 
 (b) No failure or delay by any Party in exercising
any right, power or privilege in connection with this Agreement shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege.
Except as otherwise provided herein, the rights and remedies provided in this Agreement shall be cumulative and not exclusive of any rights or remedies provided by Law. 

  
 3 

 5. Notices. All notices, requests and other communications to any Party pursuant to this Agreement
shall be in writing (including facsimile transmission) and shall be given, 
 if to Acquirer, to: 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, OK 74172-0172 

Attention: Senior Vice President, Corporate Strategic Development 
 Facsimile: (918) 573-4900 
 with copies (which shall not constitute notice)
to: 
 Williams Partners L.P. 
 One Williams Center 
 Tulsa, OK 74172-0172 

Attention: General Counsel 
 Facsimile: (918) 573-5942 
 and: 

Gibson, Dunn & Crutcher LLP 
 1801 California Street 
 Suite 4200 

Denver, CO 80202 

Attention: Steven Talley 
 Facsimile: (303) 298-5907 
 if to the Restricted Party, to: 

[            ] 

with a copy (which shall not constitute notice) to: 
 [            ] 
 or such other
address or facsimile number as such Party may hereafter specify in writing for the purpose by notice to the other Parties. All such notices, requests and other communications shall be deemed duly given when delivered personally (including by courier
or overnight courier with confirmation), via facsimile (with confirmation) or delivered by an overnight courier (with confirmation), if, in any such case, confirmation is obtained prior to 5:00 p.m. local time in the place of receipt and such
day is a Business Day. Otherwise, any such notice, request or communication shall be deemed not to have been received until the next succeeding Business Day. 
 6. Successors and Assigns; Assignment. All of the terms of this Agreement shall be binding upon, inure to the benefit of and be enforceable by and against the Restricted Party and its

  
 4 

 
successors and permitted assigns, provided that no Party may assign, delegate or otherwise transfer any of its rights or obligations under this Agreement without the consent of each other
Party. Notwithstanding the foregoing, Acquirer may assign any of its rights and obligations hereunder (a) to one or more wholly-owned subsidiaries or parent entities of Acquirer (including any subsidiaries or parent entities which may be
organized subsequent to the date hereof), (b) to any successor of Acquirer, and (c) in connection with a sale of capital stock, a sale of assets, a merger or other disposition involving Acquirer, the Company or their respective Affiliates.

 7. Governing Law. This Agreement shall be governed by and construed in accordance with the law of the State of Texas, without regard
to the conflicts of law rules thereof. 
 8. Consent to Jurisdiction. The Parties agree that any suit, action or proceeding seeking to
enforce any provision of, or based on any matter arising out of or in connection with, this Agreement or the transactions contemplated hereby shall be brought in the United States District Court for the Northern District of Texas or any Texas State
court sitting in Dallas, Texas, so long as one of such courts shall have subject matter jurisdiction over such suit, action or proceeding, and that any cause of action arising out of this Agreement shall be deemed to have arisen from a transaction
of business in the State of Texas, and each Party hereby irrevocably consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit, action or proceeding and irrevocably waives, to the fullest extent
permitted by Law, any objection that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding in any such court or that any such suit, action or proceeding brought in any such court has been brought in an
inconvenient forum. Process in any such suit, action or proceeding may be served on any Party anywhere in the world, whether within or without the jurisdiction of any such court. Without limiting the foregoing, each Party agrees that service of
process on such Party as provided in Section 5 shall be deemed effective service of process on such Party. 
 9. Counterparts;
Effectiveness; Third Party Beneficiaries. This Agreement may be signed in any number of counterparts (including facsimile and electronic transmission counterparts), each of which shall be an original, with the same effect as if the signatures to
this Agreement were upon the same instrument. This Agreement shall become effective when each Party shall have received a counterpart of this Agreement signed by the other Parties. No provision of this Agreement is intended to confer any rights,
benefits, remedies, obligations, or liabilities upon any Person other than the Parties and their respective successors and permitted assigns. 

10. Entire Agreement. This Agreement constitutes the entire agreement among the Parties with respect to the subject matter of this Agreement and
supersedes all prior agreements and understandings, both oral and written, among the Parties with respect to the subject matter of this Agreement. 
 11. Construction. The headings of the sections of this Agreement have been inserted for convenience of reference only and shall in no way restrict or otherwise modify any of the terms or provisions
hereof. In this Agreement, the term “including” and words of similar import mean “including, without limitation,” unless the context requires otherwise. Each Party and its or his counsel have participated in the drafting of this
Agreement, the language used in this Agreement shall be deemed to be the language chosen by the Parties to express their mutual intent, and no rule of construction to the effect that any ambiguities shall be resolved against the drafting party shall
be used to interpret this Agreement. 
 [Signature page follows.] 

  
 5 

 IN WITNESS WHEREOF, each party hereto has caused Agreement to be duly executed as of the
date first above written. 
  

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	Williams Partners GP LLC,
		 	its General Partner

 
					
			
		 	By:	 	 
		 	Name:	 	
		 	Title:	 	

  

			
	JACK LAFIELD
		
		 	 
		 	

 SIGNATURE PAGE 

TO 

NON-COMPETITION AND NON-SOLICITATION AGREEMENT

 NON-COMPETITION AND NON-SOLICITATION AGREEMENT 

THIS NON-COMPETITION AND NON-SOLICITATION AGREEMENT (this “Agreement”) dated as of
[                ], 2012 is entered into by and among Williams Partner L.P., a Delaware limited partnership (“Acquirer”), and EnCap Energy
Infrastructure Fund, L.P., a [                ] limited partnership (the “Restricted Party.”) Each of the parties to this Agreement is sometimes
referred to individually in this Agreement as a “Party” and all of the parties to this Agreement are sometimes collectively referred to in this Agreement as the “Parties.” 

RECITALS: 

A. Reference is made to that certain Contribution Agreement dated as of March 19, 2012 (as amended, restated or otherwise modified
from time to time, the “Contribution Agreement”) by and among Acquirer and Caiman Energy, LLC, a Delaware limited liability company (“Contributor”), pursuant to which Contributor agreed to sell, assign, transfer,
convey and deliver all of the outstanding membership interests of Caiman Eastern Midstream, LLC, a Texas limited liability company (the “Company”) to Acquirer pursuant to the terms and conditions thereof (the
“Transaction”). 
 B. Immediately prior to the consummation of the Transaction, the Restricted Party is a
member of Contributor. 
 C. In connection with the Transaction and pursuant to the terms and conditions of the Contribution
Agreement, the Restricted Party will derive, either directly or indirectly, substantial benefits from the Transaction and the other transactions contemplated by the Contribution Agreement. 

D. The Restricted Party acknowledges and agrees that following the Transaction, Acquirer and its Affiliates would be irreparably damaged
if the Restricted Party were to provide certain services to, or otherwise participate in, the business of any Person engaging in the Restricted Business (as hereafter defined) within the Territory (as hereafter defined), and that such action by the
Restricted Party would result in a significant loss by Acquirer and its Affiliates, successors or assigns. 
 E. The execution,
delivery and continued existence and enforceability of this Agreement is a material inducement to the willingness of Acquirer to enter into the Contribution Agreement. 
 F. Capitalized terms used herein and not otherwise defined herein shall have the meanings set forth in the Contribution Agreement. 
 AGREEMENT 
 NOW, THEREFORE, in consideration of the foregoing Recitals, the
covenants and agreements set forth herein, and other fair, adequate and valuable consideration (including the consideration delivered pursuant to the Transaction), the receipt and sufficiency of which are hereby acknowledged, intending to be legally
bound, the parties hereby agree as follows: 

 1. Non-Competition and Non-Solicitation. For a period beginning on the date hereof and expiring on
the two (2) year anniversary of the Closing (the “Restricted Period”), the Restricted Party acknowledges and agrees that it shall not, directly or indirectly through any Person or contractual arrangement: 

(a) engage in any gas gathering, processing, fractionation or liquid hydrocarbon business anywhere in the Territory that is of the kind of
the businesses currently operated or currently intended by the Company to be operated by the Company (the “Restricted Business”), or perform management, executive or supervisory functions with respect to, own, operate, join,
control, render financial assistance to, receive any economic benefit from, exert any influence upon, participate in, render services or advice to, or allow any of its officers or employees to be connected as an officer, employee, partner, member,
stockholder, consultant or otherwise with, any business or Person that competes in whole or in part with the Restricted Business; 
 (b) solicit, recruit or hire any person who at any time after the date of the Contribution Agreement becomes a Transferred Employee; provided that the foregoing shall not prohibit the Restricted
Party from (A) hiring a Transferred Employee who responds to a general solicitation to the public of general advertising or similar methods of solicitation by search firms not specifically directed at Transferred Employees or
(B) soliciting, recruiting or hiring any Transferred Employee who has ceased to be employed or retained by the Company, Acquirer or any of their respective Affiliates for at least twelve (12) months; or 

(c) approach or seek business in the Territory constituting the Restricted Business from any Customer (as hereinafter defined), refer
business in the Territory constituting the Restricted Business from any Customer to any Person or be paid commissions based on sales from business in the Territory constituting the Restricted Business received from any Customer by any Person (it
being understood that, for purposes of this Section 1(c), the term “Customer” means any Person to which the Company provided products or services during the twelve (12) month period prior to the Closing Date;
provided that the foregoing shall not prohibit any referral of business by the Restricted Party to the Company or Acquirer. 
 (d) For purposes hereof, “Territory” means and includes the following counties in West Virginia: Marshall, Wetzel, Doddridge, Ohio, Brooke and Tyler and the Marcellus Shale in the
following counties in Ohio: Monroe and Belmont. 
 2. Exceptions. 

Notwithstanding Section 1 to the contrary, nothing herein shall be deemed to prohibit: 

(a) the Restricted Party from owning less than five percent (5%) of any class of securities traded on a national stock exchange
issued by any Person engaged in the Restricted Business; and 
 (b) the Restricted Party from acquiring the equity securities or
assets of any Person of which less than twenty percent (20%) of its revenues are attributable to the Restricted Business. 

  
 2 

 3. Enforceability and Breaches. 

(a) If a court of competent jurisdiction determines that the character, duration or geographical scope of the provisions of this
Agreement are unreasonable, it is the intention and the agreement of the Parties that these provisions shall be construed by the court in such a manner as to impose only those restrictions on the Restricted Party’s conduct that are reasonable
in light of the circumstances and as are necessary to assure to Acquirer the benefits of this Agreement. If, in any judicial proceeding, a court shall refuse to enforce all of the separate covenants of this Agreement because taken together they are
more extensive than necessary to assure to Acquirer the intended benefits of this Agreement, it is expressly understood and agreed by the Parties that the provisions of this Agreement that, if eliminated or reformed, would permit the remaining
separate provisions to be enforced in such proceeding, shall be deemed eliminated or reformed as the case may be, for the purposes of such proceeding, from this Agreement. 
 (b) Each Party acknowledges any breach by the Restricted Party of any provision of this Agreement may result in irreparable injury to Acquirer. The Restricted Party acknowledges that, in the event of such
a breach, in addition to all other remedies available at Law, Acquirer shall be entitled to seek equitable relief, including injunctive relief, as well as such other remedies as may be available at law and equity. The Restricted Party has
independently consulted with its counsel and after such consultation agrees that the covenants set forth in this Agreement are reasonable and proper to protect the legitimate interest of Acquirer. 

4. Amendments and Waivers. 
 (a) Any provision of this Agreement may be amended or waived if, but only if, such amendment or waiver is in writing and is signed, in the case of an amendment, by each Party to this Agreement, or in the
case of a waiver, by the Party against whom the waiver is to be effective. 
 (b) No failure or delay by any Party in exercising
any right, power or privilege in connection with this Agreement shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege.
Except as otherwise provided herein, the rights and remedies provided in this Agreement shall be cumulative and not exclusive of any rights or remedies provided by Law. 
 5. Notices. All notices, requests and other communications to any Party pursuant to this Agreement shall be in writing (including facsimile transmission) and shall be given, 

if to Acquirer, to: 
 Williams Partners L.P. 
 One Williams Center 

Tulsa, OK 74172-0172 
 Attention: Senior Vice President, Corporate Strategic Development 
 Facsimile:
(918) 573-4900 

  
 3 

 with copies (which shall not constitute notice) to: 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, OK 74172-0172 

Attention: General Counsel 
 Facsimile: (918) 573-5942 
 and: 

Gibson, Dunn & Crutcher LLP 
 1801 California Street 
 Suite 4200 

Denver, CO 80202 

Attention: Steven Talley 
 Facsimile: (303) 298-5907 
 if to the Restricted Party, to: 

[                ] 

with a copy (which shall not constitute notice) to: 
 [                ] 
 or such other address or facsimile number as such Party may hereafter specify in writing for the purpose by notice to the other Parties. All such notices, requests and other communications shall be deemed
duly given when delivered personally (including by courier or overnight courier with confirmation), via facsimile (with confirmation) or delivered by an overnight courier (with confirmation), if, in any such case, confirmation is obtained prior to
5:00 p.m. local time in the place of receipt and such day is a Business Day. Otherwise, any such notice, request or communication shall be deemed not to have been received until the next succeeding Business Day. 

6. Successors and Assigns; Assignment. All of the terms of this Agreement shall be binding upon, inure to the benefit of and be enforceable by and
against the Restricted Party and its successors and permitted assigns, provided that no Party may assign, delegate or otherwise transfer any of its rights or obligations under this Agreement without the consent of each other Party.
Notwithstanding the foregoing, Acquirer may assign any of its rights and obligations hereunder (a) to one or more wholly-owned subsidiaries or parent entities of Acquirer (including any subsidiaries or parent entities which may be organized
subsequent to the date hereof), (b) to any successor of Acquirer, and (c) in connection with a sale of capital stock, a sale of assets, a merger or other disposition involving Acquirer, the Company or their respective Affiliates.

 7. Governing Law. This Agreement shall be governed by and construed in accordance with the law of the State of Texas, without regard
to the conflicts of law rules thereof. 
 8. Consent to Jurisdiction. The Parties agree that any suit, action or proceeding seeking to
enforce any provision of, or based on any matter arising out of or in connection with, this 

  
 4 

 
Agreement or the transactions contemplated hereby shall be brought in the United States District Court for the Northern District of Texas or any Texas State court sitting in Dallas, Texas, so
long as one of such courts shall have subject matter jurisdiction over such suit, action or proceeding, and that any cause of action arising out of this Agreement shall be deemed to have arisen from a transaction of business in the State of Texas,
and each Party hereby irrevocably consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit, action or proceeding and irrevocably waives, to the fullest extent permitted by Law, any objection
that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding in any such court or that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum. Process in any
such suit, action or proceeding may be served on any Party anywhere in the world, whether within or without the jurisdiction of any such court. Without limiting the foregoing, each Party agrees that service of process on such Party as provided in
Section 5 shall be deemed effective service of process on such Party. 
 9. Counterparts; Effectiveness; Third Party
Beneficiaries. This Agreement may be signed in any number of counterparts (including facsimile and electronic transmission counterparts), each of which shall be an original, with the same effect as if the signatures to this Agreement were upon
the same instrument. This Agreement shall become effective when each Party shall have received a counterpart of this Agreement signed by the other Parties. No provision of this Agreement is intended to confer any rights, benefits, remedies,
obligations, or liabilities upon any Person other than the Parties and their respective successors and permitted assigns. 
 10. Entire
Agreement. This Agreement constitutes the entire agreement among the Parties with respect to the subject matter of this Agreement and supersedes all prior agreements and understandings, both oral and written, among the Parties with respect to
the subject matter of this Agreement. 
 11. Construction. The headings of the sections of this Agreement have been inserted for
convenience of reference only and shall in no way restrict or otherwise modify any of the terms or provisions hereof. In this Agreement, the term “including” and words of similar import mean “including, without limitation,”
unless the context requires otherwise. Each Party and its or his counsel have participated in the drafting of this Agreement, the language used in this Agreement shall be deemed to be the language chosen by the Parties to express their mutual
intent, and no rule of construction to the effect that any ambiguities shall be resolved against the drafting party shall be used to interpret this Agreement. 
 [Signature page follows.] 

  
 5 

 IN WITNESS WHEREOF, each party hereto has caused Agreement to be duly executed as of the
date first above written. 
  

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	 Williams Partners GP LLC,
 its
General Partner

 
					
			
		 	By:	 	 
		 	Name:	 	
		 	Title:	 	

  

			
	 ENCAP ENERGY INFRASTRUCTURE
 FUND, L.P.

		
	By:	 	 
	Name:	 	
	Title:	 	

 SIGNATURE PAGE 

TO 

NON-COMPETITION AND NON-SOLICITATION AGREEMENT

  

 
 REGISTRATION RIGHTS AGREEMENT

 dated as of [                ],
2012 
 by and between 
 Williams Partners L.P. 
 and 

Caiman Energy, LLC 
  

 
  

 TABLE OF CONTENTS 

 

					
	 	  	Page	 
	 Article I DEFINITIONS
	  	 	1	  
	 Section 1.01. Definitions
	  	 	1	  
		
	 Article II REGISTRATION RIGHTS
	  	 	4	  
	 Section 2.01. Registration
	  	 	4	  
	 Section 2.02. Registration Procedures
	  	 	6	  
	 Section 2.03. Conditions to Offerings
	  	 	9	  
	 Section 2.04. Suspension Period
	  	 	9	  
	 Section 2.05. Registration Expenses
	  	 	10	  
	 Section 2.06. Indemnification; Contribution
	  	 	11	  
	 Section 2.07. Rule 144
	  	 	13	  
	 Section 2.08. Transfer of Registration Rights
	  	 	13	  
		
	 Article III LOCK-UP; CERTAIN OTHER MATTERS
	  	 	13	  
	 Section 3.01. Lock-Up
	  	 	13	  
	 Section 3.02. Transfer Agent
	  	 	13	  
	 Section 3.03. Legends
	  	 	13	  
	 Section 3.04. Section 16 Matters
	  	 	14	  
	 Section 3.05. Information
	  	 	14	  
		
	 Article IV REPRESENTATIONS AND WARRANTIES
	  	 	14	  
	 Section 4.01. Representations and Warranties of the Partnership
	  	 	14	  
	 Section 4.02. Representations and Warranties of Seller
	  	 	15	  
		
	 Article V GENERAL PROVISIONS
	  	 	15	  
	 Section 5.01. Adjustments
	  	 	15	  
	 Section 5.02. Notices
	  	 	15	  
	 Section 5.03. Expenses
	  	 	17	  
	 Section 5.04. Amendments; Waivers
	  	 	17	  
	 Section 5.05. Interpretation
	  	 	17	  
	 Section 5.06. Severability
	  	 	17	  
	 Section 5.07. Counterparts
	  	 	18	  
	 Section 5.08. Entire Understanding; No Third-Party Beneficiaries
	  	 	18	  
	 Section 5.09. Governing Law
	  	 	18	  
	 Section 5.10. Assignment
	  	 	18	  
	 Section 5.11. WAIVER OF JURY TRIAL
	  	 	18	  
	 Section 5.12. Venue for Resolution of Disputes
	  	 	19	  
	 Section 5.13. Specific Performance
	  	 	19	  
	 Section 5.14.Termination
	  	 	19	  

  
 i 

 REGISTRATION RIGHTS AGREEMENT, dated as of
[                ], 2012 (this “Agreement”), by and between Williams Partners L.P., Delaware limited partnership (the
“Partnership”) and Caiman Energy, LLC, a Delaware limited liability company (“Seller”). 

RECITALS 

WHEREAS, Seller and the Partnership are party to that certain Contribution Agreement dated as of March
[    ], 2012 (the “Purchase Agreement”); 
 WHEREAS, as a result of the
closing of the transactions contemplated by the Purchase Agreement (the “Closing”), Seller initially owns, as of the date of this Agreement, directly or indirectly,
[                ] Common Units acquired from the Partnership as a portion of the consideration received by Seller in connection with such transactions (the
“Units”); 
 WHEREAS, the execution and delivery of this Agreement is a condition to the obligations of
the parties to consummate the transactions contemplated by the Purchase Agreement; and 
 WHEREAS, each of the parties
hereto desires to enter into this Agreement in order to establish certain rights, restrictions and obligations relating to the Units. 
 NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties agree as follows: 
 ARTICLE I 

DEFINITIONS 
 Section 1.01. Definitions. As used in and for purposes of this Agreement, the following terms have the following meanings: 

“Affiliate” of any person means those other persons that, directly or indirectly, control, are controlled by or are
under common control with such person. 
 “Agreement” has the meaning set forth in the Preamble. 

“Automatic Shelf Registration Statement” means an “automatic shelf registration statement” as defined in Rule
405 promulgated under the Securities Act. 
 “beneficial owner” and words of similar import have the meaning
assigned to such terms in Rule 13d-3 promulgated under the Exchange Act as in effect on the date of this Agreement. 

“Business Day” means any day other than a Saturday, Sunday or any other day on which commercial banks in New York, New
York are authorized or required by law to close. 
 “Closing” has the meaning set forth in the Recitals.

 “Closing Date” means the date on which the Closing occurs. 

  
 1 

 “Common Units” means, collectively, the common units representing limited
partnership interests of the Partnership. 
 “Equity Interests” means any type of equity ownership in the
Partnership, or right to acquire any equity ownership in the Partnership, including Common Units or other units or a similar security, or any other interest entitling the holder thereof to participate in distributions or otherwise granting any other
economic, voting or other rights, obligations, benefits or interests in, or attaching to, such interests. 
 “Escrow
Agreement” has the meaning set forth in the Purchase Agreement. 
 “Exchange Act” means the U.S.
Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 
 “Governmental
Entity” means any federal, state, local or foreign government, any transnational governmental organization or any court of competent jurisdiction, arbitral, administrative agency or commission or other governmental authority or
instrumentality, domestic or foreign, or any national securities exchange or national quotation system on which securities issued by the Partnership or any of its Subsidiaries are listed or quoted. 

“Indemnified Party” has the meaning set forth in Section 2.06(c). 

“Indemnified Persons” has the meaning set forth in Section 2.06(a). 

“Indemnifying Party” has the meaning set forth in Section 2.06(c). 

“Inspectors” has the meaning set forth in Section 2.02(i). 

“Issuer FWP” has the meaning assigned to “issuer free writing prospectus” in Rule 433 under the Securities
Act. 
 “Law” means any law (including common law), treaty, statute, ordinance, code, rule, regulation,
judgment, decree, order, writ, award, injunction, decree, directive, authorization or determination enacted, entered, promulgated, enforced or issued by any Governmental Entity. 

“Lock-Up End Date” means the date that is 18 months following the Closing Date. 

“Losses” means any and all losses, claims, damages, liabilities, obligations, costs and expenses (including, without
limitation, as a result of any notices, actions, suits, proceedings, claims, demands, assessments, judgments, awards, costs, penalties, taxes and reasonable expenses, including reasonable attorneys’ and other professionals’ fees and
disbursements). 
 “NYSE” means the New York Stock Exchange. 

“Partnership” has the meaning set forth in the Preamble. 

  
 2 

 “person” is to be interpreted broadly to include any individual, savings
association, bank, trust company, corporation, limited liability company, partnership, association, joint-stock company, business trust, labor union, works council or unincorporated organization. 

“Prospectus” means the prospectus (including any preliminary prospectus and any final prospectus) included in any
Registration Statement, as amended or supplemented by any free writing prospectus, whether or not required to be filed with the SEC, prospectus supplement with respect to the terms of the offering of any portion of the Registrable Securities covered
by the Registration Statement and by all other amendments and supplements to the prospectus, and all material incorporated by reference in such prospectus. 
 “Purchase Agreement” has the meaning set forth in the Recitals. 

“Records” has the meaning set forth in Section 2.02(i). 

“Released Units” has the meaning set forth in the Purchase Agreement. 

“Registrable Securities” means all Units received pursuant to the Purchase Agreement that are beneficially owned by
Unitholder and that are (a) not subject to the Escrow Agreement, or (b) Released Units, and any Equity Interests issued as a dividend or other distribution with respect to, or in exchange for, or in replacement of, such Units;
provided, however, that a Registrable Security shall cease to be a Registrable Security upon the earlier of the time (i) the Registration Statement covering such Registrable Security has been declared effective under the
Securities Act and such Registrable Security has been sold or disposed of pursuant to such effective Registration Statement, (ii) such Registrable Security has been disposed of pursuant to any section of Rule 144, (iii) such Registrable
Security has been assigned, sold or otherwise transferred in a transaction in which the transferor’s rights under this Agreement are not assigned, or (iv) such Registrable Security has ceased to be outstanding. 

“Registration Statement” means any registration statement of the Partnership that covers Registrable Securities pursuant
to the provisions of this Agreement, including the prospectus, amendments and supplements to such registration statement, including pre- and post-effective amendments, and all exhibits and all material incorporated by reference in such registration
statement. 
 “Representative” means, with respect to any person, such person’s, or such person’s
Subsidiaries’, directors, officers, employees, accountants, investment bankers, commercial bank lenders, attorneys and other advisors or representatives (including the employees or attorneys of such accountants, investment bankers or
attorneys). 
 “Rule 144” means Rule 144 promulgated under the Securities Act or any similar rule or regulation
hereafter adopted by the SEC having substantially the same effect as such rule. 
 “SEC” means the U.S.
Securities and Exchange Commission. 
 “Securities Act” means the Securities Act of 1933, as amended, and the
rules and regulations promulgated thereunder. 

  
 3 

 “Seller” has the meaning set forth in the Preamble. 

“Suspension Period” has the meaning set forth in Section 2.04(a). 

“Subsidiary” means, with respect to a person, an Affiliate directly or indirectly controlled by such person. 

“Underwriter” means, with respect to any Underwritten Offering, a securities dealer who purchases any Registrable
Securities as a principal in connection with a distribution of such Registrable Securities. 
 “Underwritten
Offering” has the meaning set forth in Section 2.01(a). 
 “Underwritten Offering Request” has
the meaning set forth in Section 2.01(a). 
 “Unitholder” means Seller together with its respective
Subsidiaries that beneficially own any Units, in each case for so long as such person beneficially owns any such Units. When this Agreement requires Unitholder to provide notice or give consent, such notice or consent shall be given by Seller, and
not any other person who is a member of Unitholder. 
 “Units” has the meaning set forth in the Recitals.

 ARTICLE II 
 REGISTRATION RIGHTS 
 Section 2.01. Registration.

 (a) At any time after the Lock-Up End Date that the Registrable Securities then held by Unitholder have not ceased to be
Registrable Securities, at Unitholder’s election and within 15 Business Days after the Partnership’s receipt of Unitholder’s written request (which written request may be submitted as early as 15 Business Days prior to the Lock-Up End
Date) (an “Underwritten Offering Request”), the Partnership will (i) if the Partnership is then a Well Known Seasoned Issuer (as such term is defined under the Securities Act) with an existing effective Automatic Shelf
Registration Statement at the time of receipt of the Underwritten Offering Request, use its reasonable best efforts to file a prospectus supplement that shall be deemed to be part of an existing effective Automatic Shelf Registration Statement of
the Partnership in accordance with Rule 430B under the Securities Act that is useable for a resale of Registrable Securities by Unitholder conducted pursuant to a firm commitment underwriting (an “Underwritten Offering”), or
(ii) if the Partnership does not have an existing effective Automatic Shelf Registration Statement, file and use its reasonable best efforts to have declared effective by the SEC a Registration Statement containing a prospectus supplement that
is useable for a resale of Registrable Securities by Unitholder conducted pursuant to an Underwritten Offering; provided, however that in no event shall the Partnership be required to file a prospectus supplement or Registration
Statement (as applicable) or otherwise participate in more than a total of four Underwritten Offerings during the term of this Agreement or more than one Underwritten Offering in any six-month period. The Underwritten Offering Request will specify
the aggregate value of the Registrable Securities proposed by Unitholder to be included in such Underwritten Offering (calculated based on the volume-weighted average trading price of the Common Units

  
 4 

 
for the 30 days prior to the date of the Underwritten Offering Request), which aggregate value may not be less than $100 million or more than $275 million. Unitholder may change the number of
Registrable Securities proposed to be offered in any Underwritten Offering at any time prior to commencement of such offering so long as such change would not materially adversely affect the timing or success of the Underwritten Offering or change
the aggregate value of the Registrable Securities proposed by Unitholder to be included in such Underwritten Offering to less than $100 million or more than $275 million and provided that the Partnership shall be entitled to reasonably delay an
Underwritten Offering as a result of such change. Unitholder will be permitted to rescind an Underwritten Offering Request at any time prior to 10 Business Days before the public announcement of the Underwritten Offering; provided, that
(i) Unitholder reimburses the Partnership for all reasonable, out-of-pocket expenses incurred by the Partnership in connection with such Underwritten Offering, (ii) such Underwritten Offering will not count as an Underwritten Offering for
purposes of determining when future Underwritten Offerings may be requested by Unitholder pursuant to this Section 2.01(a), and (iii) Unitholder will not be entitled to submit an Underwritten Offering Request during the two months
following the date of the rescission. In addition, any Underwritten Offering will not count against such number of Underwritten Offerings if (A) such offering is withdrawn (other than at the request of Unitholder) or (B) less than 80% of
the Registrable Securities requested by Unitholder to be sold in such Underwritten Offering are sold. 
 (b) The Partnership
will use its reasonable best efforts (i) to cause any Registration Statement to be declared effective (unless it becomes effective automatically upon filing) as promptly as practicable after the filing thereof with the SEC and (ii) to keep
any Registration Statement current and effective until the completion of the Underwritten Offering registered thereon. The Partnership further agrees to use its reasonable best efforts to supplement or make amendments to each such Registration
Statement as may be necessary to keep such Registration Statement effective for the period referred to above, including (A) to respond to the comments of the SEC, if any, (B) as may be required by the registration form utilized by the
Partnership for such Registration Statement or by the instructions to such registration form, (C) as may be required by the Securities Act, (D) as may be reasonably requested in writing by Unitholder or any Underwriter and reasonably
acceptable to the Partnership. The Partnership agrees to furnish to Unitholder copies of any such supplement or amendment no later than the time it is first being used or filed with the SEC. 

(c) Subject to the following sentence, the Partnership may include in any Underwritten Offering any securities for its own account or for
the account of holders of Common Units (other than Unitholder). Notwithstanding anything to the contrary contained herein, if the lead Underwriters of an Underwritten Offering advise the Partnership in writing that, in their reasonable opinion the
number of Equity Interests (including any Registrable Securities) that the Partnership, Unitholder and any other persons intend to include in any Registration Statement is such that the success of any such offering would be materially and adversely
affected, including with respect to the price at which the securities can be sold, then the number of Common Units or other Equity Interests to be included in the Registration Statement for the account of the Partnership, Unitholder and any other
persons will be reduced to the extent necessary to reduce the total number of securities to be included in any such Registration Statement to the number recommended by such lead Underwriter; provided, however, that such reduction shall
be made: (i) first, to remove or reduce pro rata among any 

  
 5 

 
other holders of Common Units or other Equity Interests requested to be registered or disposed of, as applicable, so that the total number of Equity Interests to be included in any such offering
for the account of all such persons will not exceed the number recommended by such lead Underwriter, (ii) second, to remove or reduce any Common Units or other Equity Interests proposed to be offered by the Partnership for its own
account and (iii) third, to remove or reduce Registrable Securities requested to be included in the Registration Statement for the account of Unitholder pursuant to Section 2.01(a). 

(d) The Partnership and Unitholder agree that it is in the parties interest to work together to sell the Registrable Securities in an
orderly manner. In this regard, the Partnership may, in its sole discretion, inform Unitholder of any primary offerings of its Common Units and, to the extent practicable in the sole discretion of the Partnership, and subject to Unitholder being
bound by a confidentiality agreement containing a restriction on any purchase or sale of Common Units until such offering is publicly announced, the Partnership may offer to Unitholder the opportunity to include Registrable Securities in such
offering to allow for the orderly sale of such Units. 
 Section 2.02. Registration Procedures. Subject to
the provisions of Section 2.01, in connection with the registration of the sale of Registrable Securities in an Underwritten Offering pursuant to this Agreement, the Partnership will as promptly as reasonably practicable: 

(a) furnish to Unitholder without charge, prior to the filing of a Registration Statement, copies of such Registration Statement as it is
proposed to be filed, and thereafter such number of copies of such Registration Statement, each amendment and supplement thereto (in each case including all exhibits thereto, including each preliminary prospectus), copies of any and all transmittal
letters or other correspondence with the SEC relating to such Registration Statement and such other documents in such quantities as Unitholder may reasonably request from time to time in order to facilitate the disposition of such Registrable
Securities, and give Unitholder and its Representatives a reasonable opportunity to review and comment on the same prior to filing any such documents; 
 (b) (i) cause the Partnership’s Representatives to supply all information reasonably requested by Unitholder, any Underwriter, or its Representatives in connection with the Registration Statement and
(ii) provide Unitholder, any Underwriter and its Representatives with the opportunity to participate in the preparation of such Registration Statement and the related Prospectus; 

(c) use its reasonable best efforts to register or qualify such Registrable Securities under such other securities or “blue
sky” laws of such jurisdictions as Unitholder reasonably requests and do any and all other acts and things as may be reasonably necessary or advisable to enable Unitholder to consummate the disposition of such Registrable Securities in such
jurisdictions; provided, however, that the Partnership shall in no event be required to (i) qualify generally to do business in any jurisdiction where it is not then so qualified, (ii) subject itself to taxation in any
jurisdiction where is not otherwise then so subject, (iii) take any action that would subject it to service of process in suits other than those arising out of the offer and sale of the securities covered by the Registration Statement or
(iv) consent to general service of process in any jurisdiction where it is not then so subject; 

  
 6 

 (d) notify Unitholder at any time when a prospectus relating to Registrable Securities is
required to be delivered under the Securities Act, of the happening of any event as a result of which the Prospectus included in a Registration Statement or the Registration Statement or amendment or supplement relating to such Registrable
Securities contains an untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading,
and the Partnership will promptly prepare and file with the SEC a supplement or amendment to such prospectus and Registration Statement (and comply fully with the applicable provisions of Rules 424, 430A and 430B under the Securities Act in a
timely manner) so that, as thereafter delivered to the purchasers of the Registrable Securities, such prospectus and Registration Statement will not contain an untrue statement of a material fact or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; 
 (e) advise any Underwriter(s) and Unitholder promptly and, if requested by such persons, confirm such advice in writing, of the issuance by the SEC of any stop order suspending the effectiveness of the
Registration Statement under the Securities Act or of the suspension by any state securities commission of the qualification of the Registrable Securities for offering or sale in any jurisdiction, or the initiation of any proceeding for any of the
preceding purposes. If at any time the SEC shall issue any stop order suspending the effectiveness of the Registration Statement, or any state securities commission or other regulatory authority shall issue an order suspending the qualification or
exemption from qualification of the Registrable Securities under state securities or “blue sky” laws, the Partnership shall use its reasonable best efforts to obtain the withdrawal or lifting of such order as promptly as practicable;

 (f) use its reasonable best efforts to cause such Registrable Securities to be registered with or approved by such other
Governmental Entities as may be necessary by virtue of the business and operations of the Partnership to enable Unitholder to consummate the disposition of such Registrable Securities; provided, however, that the Partnership shall in
no event be required to (i) qualify generally to do business in any jurisdiction where it is not then so qualified, (ii) subject itself to taxation in any jurisdiction where is not otherwise then so subject, (iii) take any action that
would subject it to service of process in suits other than those arising out of the offer and sale of the securities covered by the Registration Statement or (iv) consent to general service of process in any jurisdiction where it is not then so
subject; 
 (g) enter into customary agreements and use reasonable best efforts to take such other actions as are reasonably
requested by Unitholder and are consistent with the other obligations of the Partnership hereunder in order to expedite or facilitate any Underwritten Offering; 
 (h) if requested by Unitholder, promptly include in any Registration Statement or Prospectus, pursuant to a supplement or post-effective amendment if necessary, and subject to the provisions of this
Agreement, such information as Unitholder may reasonably request to have included therein, including any terms of the Underwritten Offering, and make all required filings of such prospectus supplement or post-effective amendment as soon as
practicable after the Partnership is notified of the matters to be included in such prospectus supplement or post-effective amendment; 

  
 7 

 (i) except to the extent prohibited by applicable Law and subject to entry into a customary
confidentiality agreement or arrangement, make available, after reasonable advance notice, for inspection by Unitholder and any of its Representatives (collectively, the “Inspectors”), during business hours at the offices where such
information is normally kept, any financial and other records and corporate documents of the Partnership (collectively, the “Records”) as will be reasonably necessary to enable them to conduct reasonable and customary due diligence
with respect to the Partnership and the related Registration Statement and prospectus and request the Representatives of the Partnership and its Subsidiaries to supply all information reasonably requested by any such Inspector; provided, however,
that Records and information obtained hereunder will be used by such Inspectors only to conduct such due diligence; 
 (j)
otherwise use its reasonable best efforts to comply with all applicable rules and regulations of the SEC and make generally available to its security holders, within the required time period, an earnings statement covering a period of 12 months,
beginning with the first fiscal quarter after the effective date of the Registration Statement relating to such Registrable Securities (as the term “effective date” is defined in Rule 158(c) under the Securities Act), which earnings
statement will satisfy the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder or any successor provisions thereto; 
 (k) use reasonable best efforts to provide and cause to be maintained a transfer agent and registrar for all Registrable Securities covered by such Registration Statement not later than the effective date
of such Registration Statement; 
 (l) cooperate with Unitholder and any Underwriter to facilitate the timely preparation and
delivery of certificates representing the Registrable Securities to be sold under the Registration Statement in a form eligible for deposit with The Depository Trust Company not bearing any restrictive legends and not subject to any stop transfer
order with any transfer agent, and cause such Registrable Securities to be issued in such denominations and registered in such names as the lead Unitholder may request in writing in connection with the closing of any sale of Registrable Securities;

 (m) use its reasonable best efforts to cause such Registrable Securities to be listed or quoted on the NYSE or, if Common
Units are not then listed on the NYSE, then on such other securities exchange or national quotation system on which the Common Units are then listed or quoted; and 
 (n) The Partnership will cooperate with Unitholder and each Underwriter in effecting any Underwritten Offering as promptly as reasonably practicable following receipt of an Underwritten Offering Request.
The Partnership and Unitholder shall each be entitled to select one lead Underwriter in connection with an Underwritten Offering from the list of investment banking firms set forth on Exhibit A attached hereto, which firms have been
pre-approved by Unitholder and the Partnership. The Partnership shall reasonably assist such managing Underwriter or Underwriters in their efforts to sell Registrable Securities pursuant to such Underwritten Offering and, if reasonably requested in
connection therewith, shall make senior executives with appropriate seniority and expertise reasonably available for customary “road show” or other presentations during the marketing period for such Registrable Securities (with an

  
 8 

 
understanding that these shall be scheduled in a collaborative manner so as not to unreasonably interfere with the conduct of the business of the Partnership). In furtherance of the foregoing,
the Partnership will use its reasonable best efforts to obtain and deliver to each Underwriter and Unitholder a comfort letter from the independent registered public accounting firm for the Partnership (and additional comfort letters from the
independent registered public accounting firm for any company acquired by the Partnership whose financial statements are included or incorporated by reference in the Registration Statement) in customary form and covering such matters as are
customarily covered by comfort letters as such Underwriter and Unitholder may reasonably request. The Partnership will use its reasonable best efforts to obtain and deliver to each Underwriter and Unitholder a 10b-5 statement and legal opinion from
the Partnership’s counsel in customary form and covering such matters as are customarily covered by 10b-5 statements and legal opinions delivered to Underwriters in Underwritten Offerings as such Underwriter and/or Unitholder may reasonably
request. 
 Section 2.03. Conditions to Offerings. 

(a) The obligations of the Partnership to take the actions contemplated by Section 2.01 and Section 2.02 with respect to an
offering of Registrable Securities will be subject to the following conditions: 
 (i) the Partnership may
require Unitholder to furnish to the Partnership such information regarding Unitholder, the Registrable Securities or the distribution of such Registrable Securities as the Partnership may from time to time reasonably request in writing, in each
case to the extent reasonably required by the Securities Act and the rules and regulations promulgated thereunder, or under state securities or “blue sky” laws; and 

(ii) Unitholder, together with the Partnership and any other holders of the Partnership’s securities proposing to
include securities in any Underwritten Offering, will enter into a customary underwriting agreement with the Underwriter or Underwriters selected for such underwriting, as well as such other documents customary in similar offerings. 

(b) Unitholder agrees that, upon receipt of any notice from the Partnership of the happening of any event of the kind described in
Section 2.02(d) or 2.02(e) or a condition described in Section 2.04, Unitholder will forthwith discontinue disposition of such Registrable Securities pursuant to the Registration Statement covering the sale of such Registrable Securities
until Unitholder’s receipt of the copies of the supplemented or amended Prospectus contemplated by Section 2.02(d) or notice from the Partnership of the termination of the stop order or Suspension Period. 

Section 2.04. Suspension Period. 
 (a) Notwithstanding anything to the contrary contained in this Agreement, if the Partnership determines in good faith (because of the existence of, or in anticipation of, any acquisition, financing
activity or other transaction involving the Partnership, the unavailability of any required financial statements, disclosure of information which is in its best interest not to publicly disclose, or any other event or condition of similar
significance to the Partnership) that 

  
 9 

 
effecting an Underwritten Offering would be materially detrimental to the Partnership or the holders of its Common Units, then the Partnership shall be entitled to postpone any such Underwritten
Offering for a reasonable period of time not to exceed 60 consecutive days (or a longer period of time with the prior written consent of Seller, which consent shall not be unreasonably withheld) or 105 days in the aggregate in any 365-day period (a
“Suspension Period”). In the event of any such suspension pursuant to this Section 2.04(a), the Partnership shall furnish to Seller a written notice setting forth the estimated length of the anticipated delay. The Partnership
will notify Unitholder promptly upon the termination of the Suspension Period. Upon notice by the Partnership to Unitholder of any determination to commence a Suspension Period, Unitholder shall, except as required by applicable Law, including any
disclosure obligations under Section 13 of the Exchange Act, keep the fact of any such Suspension Period strictly confidential, and during any Suspension Period, promptly halt any offer, sale (including sales pursuant to Rule 144), trading or
transfer of any Common Units for the duration of the Suspension Period until the Partnership has provided notice that the Suspension Period has been terminated. 
 (b) After the expiration of any Suspension Period and without any further request from a holder of Equity Interests, the Partnership shall as promptly as reasonably practicable prepare a Registration
Statement or post-effective amendment or supplement to the applicable shelf Registration Statement or Prospectus, or any document incorporated therein by reference, or file any other required document so that, as thereafter delivered to purchasers
of the Registrable Securities included therein, the Prospectus will not include a material misstatement or omission or be not effective and useable for resale of Registrable Securities. 

Section 2.05. Registration Expenses. All fees and expenses incurred by Unitholder applicable to Registrable Securities
offered for Unitholder’s account in an Underwritten Offering (including underwriting discounts and commissions and fees and expenses of Unitholder’s counsel) will be borne by Unitholder. All other reasonable fees and expenses incident to
an Underwritten Offering, including all fees and expenses incurred by the Partnership in complying with securities or “blue sky” laws, printing expenses, messenger and delivery expenses, any registration or filing fees payable under any
federal or state securities or “blue sky” laws, the fees and expenses incurred in connection with any listing or quoting of the securities to be registered on any national securities exchange or automated quotation system, fees of the
Financial Industry Regulatory Authority, reasonable fees and disbursements of counsel for the Partnership, its independent registered certified public accounting firm and any other public accountants who are required to deliver comfort letters
(including the expenses required by or incident to such performance), transfer taxes, fees of transfer agents and registrars, costs of insurance, the fees and out of pocket expenses of other persons retained by the Partnership (collectively, the
“Offering Expenses”) will be borne (i) in the event the Underwritten Offering includes only Registrable Securities offered for Unitholder’s account, by Unitholder, and (ii) in the event the Underwritten Offering
includes Registrable Securities offered for Unitholder’s account and Common Units offered for the Partnership’s own account or for the account of holders of Common Units other than Unitholder, 50% by Unitholder and 50% by the Partnership,
provided, in the case of (ii), if less than 50% of the total amount of Common Units offered in the Underwritten Offering are offered for Unitholder’s account, then the Offering Expenses for such Underwritten Offering will be borne by
Unitholder and the Partnership pro rata, based on the percentage of the total amount of Common Units offered for Unitholder’s account and the percentage of the total amount of Common Units offered for the Partnership’s own account
or for the account of holders of Common Units other than Unitholder. 

  
 10 

 Section 2.06. Indemnification; Contribution. (a) In connection with
any registration of Registrable Securities pursuant to Section 2.01, the Partnership will indemnify, defend and hold harmless Unitholder, its Affiliates, directors, officers and shareholders and each person who controls Unitholder within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act (collectively, the “Indemnified Persons”) from and against any and all Losses caused by any untrue or alleged untrue statement of
material fact contained in any part of any Registration Statement or any Prospectus, including any amendment or supplement thereto, used in connection with the Registrable Securities or any Issuer FWP, or any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the statements therein (in the case of a prospectus, in the light of the circumstances under which they were made) not misleading; provided, however, that the
Partnership will not be required to indemnify any Indemnified Person for any Losses resulting from any such untrue statement or omission if such untrue statement or omission was made in reliance on and in conformity with information with respect to
any Indemnified Person furnished to the Partnership in writing by, or at direction of, Unitholder or any Indemnified Person expressly for use therein. 
 (b) In connection with any Registration Statement, Prospectus or Issuer FWP, Unitholder will indemnify, defend and hold harmless the Partnership, its directors, its officers and each person, if any, who
controls the Partnership (within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act) to the same extent as the foregoing indemnity from the Partnership to Unitholder, but only with respect to
information furnished to the Partnership in writing by, or at direction of, any Unitholder or any Indemnified Persons expressly for use in such Registration Statement, Prospectus or Issuer FWP. 

(c) In case any claim, action or proceeding (including any governmental investigation) is instituted involving any person in respect of
which indemnity may be sought pursuant to Section 2.06(a) or Section 2.06(b), such person (the “Indemnified Party”) will promptly notify the person against whom such indemnity may be sought (the “Indemnifying
Party”) in writing and the Indemnifying Party shall be entitled to participate therein and, to the extent it shall wish, to assume the defense thereof with counsel reasonably satisfactory to the Indemnified Party and will pay the fees and
disbursements of such counsel related to such proceeding; provided, however, that the failure or delay to give such notice shall not relieve the Indemnifying Party of its obligations pursuant to this Agreement except to the extent such
Indemnifying Party has been prejudiced by such failure or delay. In any such claim, action or proceeding, the Indemnified Party shall have the right, but not the obligation, to participate in any such defense and to retain its own counsel, but the
fees and expenses of such counsel will be at the expense of such Indemnified Party unless (i) the Indemnifying Party and the Indemnified Party have mutually agreed to the retention of such counsel, (ii) the Indemnifying Party fails to
assume the defense of the claim, action or proceeding within 15 Business Days following receipt of notice from the Indemnified Party, or (iii) the Indemnified Party and the Indemnifying Party are both actual or potential defendants in, or
targets of, any such action and the Indemnified Party has been advised by counsel that representation of both parties by the same counsel would be inappropriate due to actual or potential conflicting interests between them. It is understood that the
Indemnifying Party will not, in connection with any claim, action or proceeding or 

  
 11 

 
related claims, actions or proceedings in the same jurisdiction, be liable for the reasonable fees and expenses of more than one separate firm of attorneys (in addition to any local counsel) at
any time for all such Indemnified Parties and that all such reasonable fees and expenses will be reimbursed as they are incurred. In the case of the retention of any such separate firm for the Indemnified Parties, such firm will be designated in
writing by the Indemnified Parties. The Indemnifying Party will not be liable for any settlement of any claim, action or proceeding effected without its written consent (which consent shall not be unreasonably withheld, conditioned or delayed), but
if such claim, action or proceeding is settled with such consent or if there has been a final judgment for the plaintiff, the Indemnifying Party agrees to indemnify the Indemnified Party from and against any Loss by reason of such settlement or
judgment. No Indemnifying Party will, without the prior written consent of the Indemnified Party, settle, compromise or offer to settle or compromise any pending or threatened proceeding in respect of which any Indemnified Party is seeking indemnity
hereunder, unless such settlement includes (i) an unconditional release of such Indemnified Party from all liability in connection with such proceeding, (ii) no finding or admission of any violation of Law or any violation of the rights of
any person by the Indemnified Party or any of its Affiliates can be made as the result of such action, and (iii) the sole relief (if any) provided is monetary damages that are reimbursed in full by the Indemnifying Party. No Indemnified Party
will, without the prior written consent of the Indemnifying Party, settle, compromise or offer to settle or compromise any pending or threatened proceeding in respect of which any Indemnified Party is seeking indemnity hereunder. 

(d) If the indemnification provided for in this Section 2.06 from the Indemnifying Party is unavailable to an Indemnified Party
hereunder or is insufficient in respect of any Losses referred to in this Section 2.06, then the Indemnifying Party, in lieu of indemnifying such Indemnified Party, will contribute to the amount paid or payable by such Indemnified Party as a
result of such Losses (i) in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party and Indemnified Party in connection with the actions that resulted in such Losses, as well as any other relevant equitable
considerations, or (ii) if the allocation provided by clause (i) is not permitted by applicable Law, in such proportion as is appropriate to reflect not only the relative fault referred to in clause (i) but also the relative benefit
of the Partnership, on the one hand, and Unitholder, on the other, in connection with the statements or omissions that resulted in such Losses, as well as any other relevant equitable considerations. The relative fault of such Indemnifying Party and
Indemnified Party will be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, has been taken
by, or relates to information supplied by, such Indemnifying Party or Indemnified Party, and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such action. The amount paid or payable by a party
as a result of the Losses referred to above will be deemed to include, subject to the limitations set forth in Section 2.06(c), any reasonable legal or other out of pocket fees or expenses reasonably incurred by such party in connection with
any investigation or proceeding. 
 (e) The parties agree that it would not be just and equitable if contribution pursuant to
Section 2.06(d) were determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to in Section 2.06(d). No person guilty of “fraudulent
misrepresentation” (within the meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any person who was not guilty of such fraudulent 

  
 12 

 
misrepresentation. Notwithstanding the provisions of this Section 2.06(e), Unitholder shall not be required to contribute, in the aggregate, any amount in excess of the amount by which the
net proceeds received by Unitholder from the sale of the Registrable Securities exceeds the amount of any damages which Unitholder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged
omission. 
 (f) If indemnification is available under this Section 2.06, the Indemnifying Party will indemnify each
Indemnified Party to the fullest extent permissible under applicable Law provided in Sections 2.06(a) and 2.06(b) without regard to the relative fault of said Indemnifying Party or Indemnified Party or any other equitable consideration provided for
in Section 2.06(d) or Section 2.06(e). The obligations of the Partnership under this Section 2.06 shall be in addition to any liability that the Partnership may otherwise have to any Indemnified Person. 

Section 2.07. Rule 144. 
 (a) The Partnership agrees that it will use its reasonable best efforts to file the reports required to be filed by it under the Securities Act and the Exchange Act and take such further action as
Unitholder reasonably may request (including providing Unitholder with such information as may be required in order to enable Unitholder to make sales within the limitation of the exemptions provided by Rule 144), all to the extent required from
time to time to enable Unitholder to sell Registrable Securities pursuant to the exemptions provided by Rule 144. 
 (b) Seller
and the Partnership agree that Seller and its Affiliates shall not be deemed an affiliate of the Partnership or any of its Subsidiaries under Rule 144 for purposes of this Agreement. 

Section 2.08. Transfer of Registration Rights. The rights granted to Unitholder under this Article II may not be
assigned by Unitholder in whole or in part other than to any person that acquires all of Unitholder’s Registrable Securities; provided that the Partnership approves such transfer in writing, which approval shall not be unreasonably
withheld or delayed. 
 ARTICLE III 
 LOCK-UP; CERTAIN OTHER MATTERS 
 Section 3.01. Lock-Up.
Unitholder agrees that the Units are subject to the restrictions on transfer set forth in Section 5.14 of the Purchase Agreement. 
 Section 3.02. Transfer Agent. Seller and the Partnership agree that the Partnership may cause the transfer agent or other registrar to enter stop transfer instructions and implement
stop transfer procedures with respect to any transfer of Units not in compliance with Section 3.01. Any transfer or attempted transfer of Units in violation of Section 3.01, to the fullest extent permitted by law, be null and void ab
initio. 
 Section 3.03. Legends. Any certificates for Units issued to Unitholder shall bear a legend or
legends (and appropriate comparable notations or other arrangements will be made with respect to any uncertificated units) referencing restrictions on transfer of such Units under the Securities Act and under this Agreement which legend shall state
in substance: 

  
 13 

 “The securities evidenced by this certificate have been issued and sold without
registration under the United States Securities Act of 1933, as amended (the “Securities Act”), or the securities laws of any state of the United States (a “State Act”) in reliance upon certain exemptions from
registration under said acts. The securities evidenced by this certificate cannot be sold, assigned or otherwise transferred within the United States unless such sale, assignment or other transfer is (i) made pursuant to an effective
registration statement under the Securities Act and in accordance with each applicable State Act or (ii) exempt from, or not subject to, the Securities Act and each applicable State Act. If the proposed sale, assignment or other transfer within
the United States will be made pursuant to clause (ii) above, the holder must, prior to such sale, assignment or other transfer, furnish to the issuer such customary certifications, legal opinions and other information as the issuer may
reasonably require to determine that such sale, assignment or other transfer is being made in accordance with such clause. 
 The
securities evidenced by this certificate are subject to restrictions on transfer set forth in a Contribution Agreement dated as of March [__], 2012, between the Partnership and Caiman Energy, LLC (a copy of which is on file with the Secretary of the
general partner of the Partnership).” 
 Notwithstanding the foregoing, the holder of any certificate(s) for Units shall be
entitled to receive from the Partnership new certificates for a like number of Units not bearing such legend (or the elimination or termination of such notations or arrangements) upon the request of such holder at (i) such time as such
restrictions are no longer applicable, and (ii) with respect to the restriction on transfer of such Units under the Securities Act, delivery of a customary opinion of counsel to such holder, which opinion is reasonably satisfactory in form and
substance to the Partnership and its counsel, that the restriction referenced in such legend (or such notations or arrangements) is no longer required in order to ensure compliance with the Securities Act. 

Section 3.04. Section 16 Matters. Seller shall comply in all material respects with the beneficial ownership
reporting requirements under Section 16 of the Exchange Act, as such requirements may apply to its beneficial ownership of Common Units. 
 Section 3.05. Information. Seller agrees to use its reasonable best efforts to provide the Partnership with any information requested by the Partnership regarding Seller’s
consummated or planned sales of Units pursuant to this agreement or, to the extent known by Seller, the consummated or planned sales activity of Seller’s affiliates. 
 ARTICLE IV 
 REPRESENTATIONS AND WARRANTIES 

Section 4.01. Representations and Warranties of the Partnership. The Partnership represents and warrants to Seller as
of the date hereof that: 
 (a) The Partnership has been duly formed and is validly existing as a limited partnership in good
standing under the Delaware Revised Uniform Limited Partnership Act and has the limited partnership power and authority to enter into this Agreement and to carry out its obligations hereunder. 

  
 14 

 (b) This Agreement has been duly and validly authorized by the Partnership and all necessary
and appropriate action has been taken by the Partnership to execute and deliver this Agreement and to perform its obligations hereunder. 
 (c) This Agreement has been duly executed and delivered by the Partnership and, assuming due authorization and valid execution and delivery by Seller, is a valid and binding obligation of the Partnership
enforceable against the Partnership in accordance with its terms. 
 Section 4.02. Representations and Warranties of
Seller. Seller represents and warrants to the Partnership as of the date hereof that: 
 (a) Seller and its Affiliates do
not, individually or in the aggregate, own, beneficially or of record, any Common Units other than the Units. 
 (b) Seller has
been duly formed and is validly existing as a limited liability company in good standing under the Delaware Limited Liability Company Act and has the limited liability company power and authority to enter into this Agreement and to carry out its
obligations hereunder. 
 (c) This Agreement has been duly and validly authorized by Seller and all necessary and appropriate
action has been taken by Seller to execute and deliver this Agreement and to perform its obligations hereunder. 
 (d) This
Agreement has been duly executed and delivered by Seller and, assuming due authorization and valid execution and delivery by the Partnership, is a valid and binding obligation of Seller enforceable against it in accordance with its terms.

 ARTICLE V 
 GENERAL PROVISIONS 
 Section 5.01. Adjustments.
References to numbers of Common Units contained herein will be adjusted to account for any reclassification, exchange, substitution, combination, split or reverse split of Equity Interests. 

Section 5.02. Notices. All notices or other communications hereunder to a party shall be deemed to have been duly
given and made if in writing and (a) if served by personal delivery, on the day of such delivery, (b) if delivered by registered or certified mail (return receipt requested), or by a national courier service, on the day of delivery, or
(c) if sent by facsimile or email, upon transmission of such facsimile or email (provided that the facsimile or email is promptly confirmed with the recipient by telephone), to the person at the address set forth below, or such other
address as may be designated in writing hereafter, in the same manner, by such person: 

  
 15 

 (a) if to the Partnership, to: 
 Williams Partners L.P. 
 One Williams Center 

Tulsa, Oklahoma 47172-0172 
 Attention: Chief Financial Officer 
 Telephone: (918) 573-2186 

Facsimile: (918) 573-0871 
 Email: don.chappel@williams.com 
 with copies (which shall not constitute notice to the
Partnership) to: 
 Gibson, Dunn & Crutcher LLP 

1801 California Street, Suite 4200 
 Denver, Colorado 80202-2642 
 Attention: Richard M. Russo 

Telephone: (303) 298-5715 
 Facsimile: (303) 313-2838 
 Email: rrusso@gibsondunn.com 

The Williams Companies, Inc. 
 One Williams Center 
 Tulsa, Oklahoma 47172-0172 

Attention: General Counsel 
 Telephone: (918) 573-0816 
 Facsimile: (918) 573-5942 

Email: craig.rainey@williams.com 
  

	(b)	if to Seller or Unitholder, to: 

Caiman Energy, LLC 
 5949 Sherry Lane, Suite 1300 
 Dallas, Texas 75225 

Attention: Tony Strehlow 
 Telephone: [            ] 
 Facsimile: (214) 580-3750 
 Email:
[            ] 
 with a copy (which shall not constitute notice to Seller or
Unitholder) to: 
 Vinson & Elkins LLP 
 1001 Fannin Street, Suite 2500 
 Houston, Texas 77002-6760 

Attention: Douglas E. McWilliams 
 Telephone: (713) 758-3613 
 Facsimile: (713) 615-5725 

Email: dmcwilliams@velaw.com 

  
 16 

 Section 5.03. Expenses. Except as otherwise provided in this Agreement,
all costs and expenses incurred in connection with this Agreement shall be paid by the party incurring such cost or expense. 

Section 5.04. Amendments; Waivers. Any provision of this Agreement may be amended or waived if, and only if, such
amendment or waiver is in writing and signed, in the case of an amendment, by the Partnership and Seller or, in the case of a waiver, by the party against whom the waiver is to be effective. No failure or delay by any party in exercising any right,
power or privilege under this Agreement shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege. 

Section 5.05. Interpretation. In this Agreement, except as context may otherwise require, references: 

(a) to the Preamble, Recitals, Sections, or Exhibits are to the Preamble to, a Recital or Section of, or Exhibit to, this Agreement;

 (b) to this Agreement are to this Agreement and the Exhibits to it, taken as a whole; 

(c) to any agreement (including this Agreement), contract, statute or regulation are to the agreement, contract, statute or regulation as
amended, modified, supplemented, restated or replaced from time to time (in the case of an agreement or contract, to the extent permitted by the terms thereof); and to any section of any statute or regulation include any successor to the section;

 (d) to any Governmental Entity includes any successor to that Governmental Entity; 

(e) to a person are also to its permitted successors and assigns; 

(f) to the words “hereby,” “herein,” “hereof,” “hereunder,” and similar terms are to be deemed to
refer to this Agreement as a whole and not to any specific Section; 
 (g) to the words “include,”
“includes,” or “including,” are to be deemed followed by the words “without limitation.” Any singular term in this Agreement will be deemed to include the plural, and any plural term the singular. All pronouns and
variations of pronouns will be deemed to refer to the feminine, masculine or neuter, singular or plural, as the identity of the person referred to may require; 
 (h) the table of contents and article and section headings are for reference purposes only and do not limit or otherwise affect any of the substance of this Agreement; and 

(i) this Agreement is the product of negotiation by the parties, having the assistance of counsel and other advisers. The parties intend
that this Agreement not be construed more strictly with regard to one party than with regard to the other. 
 Section 5.06.
Severability. The provisions of this Agreement shall be deemed severable and the invalidity or unenforceability of any provision shall not affect the validity or 

  
 17 

 
enforceability of the other provisions hereof. If any provisions of this Agreement or the application thereof to any person or entity or any circumstance, is found by a court or other
Governmental Entity of competent jurisdiction to be invalid or unenforceable, (a) a suitable and equitable provision shall be substituted therefor in order to carry out, so far as may be valid and enforceable, the intent and purpose of such
invalid or unenforceable provision and (b) the remainder of this Agreement and the application of such provision to other persons, entities or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity
or unenforceability affect the validity or enforceability, of such provision or the application thereof, in any other jurisdiction. 
 Section 5.07. Counterparts. This Agreement may be executed in two or more counterparts which may be delivered by means of facsimile or email, each of which shall be deemed to constitute
an original, but all of which together shall be deemed to constitute one and the same instrument. 
 Section 5.08.
Entire Understanding; No Third-Party Beneficiaries. This Agreement (including the Exhibits hereto) represents the entire understanding of the parties hereto with respect to the subject matter hereof and thereof and supersedes any and
all other oral or written agreements heretofore made. Nothing in this Agreement, express or implied, is intended to confer upon any person, other than the parties and their respective permitted successors and assigns, any rights or remedies under or
by reason of this Agreement. Only the parties that are signatories to this Agreement (and their permitted successors and assigns) shall have any obligation or liability under, in connection with, arising out of, resulting from or in any way related
to this Agreement or any other matter contemplated hereby or the process leading up to the execution and delivery of this Agreement and the transactions contemplated hereby, subject to delivery of this Agreement and such transactions and other
provisions of this Agreement. 
 Section 5.09. Governing Law. This Agreement shall be governed by, and
interpreted in accordance with, the laws of the State of Texas applicable to contracts made and to be performed entirely within such state, without regard to the conflicts of law principles thereof to the extent that such principles would apply the
law of another jurisdiction. 
 Section 5.10. Assignment. Subject to Section 2.08, neither this
Agreement nor any of the rights, interests or obligations under this Agreement will be assigned, in whole or in part, by any of the parties without the prior written consent of the other parties hereto. Any purported assignment without such prior
written consent will be void. Subject to the preceding sentences, this Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties and their respective successors and assigns. 

Section 5.11. WAIVER OF JURY TRIAL. EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY THAT MAY ARISE UNDER THIS
AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT
OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT: (A) NO REPRESENTATIVE, AGENT 

  
 18 

 
OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER; (B) EACH PARTY
UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER; (C) EACH PARTY MAKES THIS WAIVER VOLUNTARILY; AND (D) EACH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN
THIS SECTION 5.11. 
 Section 5.12. Venue for Resolution of Disputes. Each party hereto agrees that it
shall bring any action or proceeding in respect of any claim arising out of or related to this Agreement and the transactions contained hereby, whether in tort or contract or at law or in equity, exclusively, in the United States District Court for
the Northern District of Texas or any Texas State court sitting in Dallas, Texas, and (a) irrevocably submits to the exclusive jurisdiction of such courts, (b) waives any objection to laying venue in any such action or proceeding in such
courts, (c) waives any objection that such courts are an inconvenient forum or do not have jurisdiction over any party hereto and (d) agrees that service of process upon such party in any such action or proceeding shall be effective if
Notice is given in accordance with Section 5.02 of this Agreement. Each party hereto further hereby irrevocably and unconditionally waives any objection to the laying of venue of any action, suit or proceeding arising out of this Agreement or
the transactions contemplated hereby in such courts, and hereby irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action, suit or proceeding brought in any such court has been brought in an
inconvenient forum or that such party is not subject to personal jurisdiction in such court. 
 Section 5.13.
Specific Performance. Each party agrees that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed by it in accordance with their specific terms or were otherwise breached or
threatened to be breached. It is accordingly agreed that, except as expressly set forth in this Agreement to the contrary, each party shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions of this Agreement in the United States District Court for the Northern District of Texas or any Texas State court sitting in Dallas, Texas, without bond or other security being required, this being in addition to any other
right, remedy or cause of action to which any party is entitled under any theory of recovery whatsoever (including, at law or in equity, in tort or any other claims). 
 Section 5.14. Termination. Except as otherwise provided in this Agreement, this Agreement shall terminate upon the first date on which Unitholder ceases to hold any Registrable
Securities; provided, however, that the (a) provisions contained in Article II of this Agreement, except Section 2.06, shall automatically terminate upon the earlier of (i) the time when there are no longer any
Registrable Securities outstanding or (ii) the date that is 42 months following the Closing Date; (b) the indemnity and contribution provisions contained in Section 2.06, the representations and warranties of the Partnership and
Seller referred to in Section 4.01 and Section 4.02 shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on behalf of any Indemnified Person or
by or on behalf of the Partnership and (iii) the consummation of the sale of the Registrable Securities; and (c) the provisions of this Article V shall survive any termination of this Agreement or any provision thereof. Nothing in
this Agreement shall be deemed to release any 

  
 19 

 
party from any liability for any willful and material breach of this Agreement occurring prior to any termination hereof or to impair the right of any party to compel specific performance by any
other party of its obligations under this Agreement. 
 [Next page is a signature page.] 

  
 20 

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

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	Williams Partners GP LLC,
		 	its General Partner
		
	By:	 	 
		 	 Name:

Title:

	
	CAIMAN ENERGY, LLC
		
	By:	 	 
		 	 Name:

Title:

 [Registration Rights Agreement] 

  

 Exhibit A 
 Approved Underwriters 
 Citi 
 Barclays 
 UBS 
 Morgan Stanley 
 Wells Fargo 
 Bank of America Merrill Lynch 

  
 A-1

 TRANSITION SERVICES AGREEMENT 

THIS TRANSITION SERVICES AGREEMENT (this “Agreement”), dated
[            ], 2012, is by and between Caiman Energy, LLC, a Delaware limited liability company (“Contributor”), and [Caiman Eastern Midstream, LLC, a Delaware
limited liability company OR Williams Partners L.P., a Delaware limited partnership (“Acquirer”)]. Contributor and Acquirer are each sometimes referred to herein each as a “party” and collectively, as
the “parties”. Capitalized terms used herein but not otherwise defined shall have the meanings assigned such terms in the Contribution Agreement (as defined below). 

RECITALS: 

A. Contributor and Acquirer have entered into that certain Contribution Agreement (the “Contribution Agreement”), dated
as of March [__], 2012, whereby Contributor agreed to sell, assign, transfer, convey and deliver to Acquirer 100% of the outstanding limited liability company interests in Caiman Eastern Midstream, LLC, a Delaware limited liability company (the
“Company”) all on the terms, and subject to the conditions, set forth in the Contribution Agreement. 
 B. In
connection with the transactions contemplated by the Contribution Agreement, and subject to the terms and conditions of this Agreement, the parties agree that Contributor will provide Acquirer with such transition services as may be reasonably
necessary or appropriate for the ownership and operation of the business of the Company until the end of the Service Period (as defined below), and in order to facilitate the transition of such services to Acquirer such that Acquirer will be
reasonably capable of performing such services without the aid of Contributor by the end of the Service Period. 
 AGREEMENT

 NOW, THEREFORE, in consideration of the foregoing Recitals, the mutual covenants and agreements set forth herein, the
receipt and sufficiency of which are hereby acknowledged, intending to be legally bound, the parties hereby agree as follows: 
 1. Term and
Services. 
 (a) Unless sooner terminated as hereinafter provided, the term of this Agreement shall
commence on the date hereof (“Effective Date”) and continue for a period of [            ]1 months (the “Initial Service Period”), provided the Service Period can be extended for up to
[            ] additional successive one-month periods (each such period, an “Extended Service Period”) by Acquirer giving written notice to Contributor no less than
thirty (30) days prior to the end of the Initial Service Period and no less than ten (10) days prior to the end of each Extended Service Period. The period of service by Contributor hereunder whether the Initial Service Period or the
Extended Service Period, or as otherwise extended by mutual agreement, shall be referred to as the “Service Period”. 

 

	1 	 Parties to agree on the service periods prior to Closing. 

 (b) From the Effective Date through the end of the Service Period, subject to the terms and
provisions of this Agreement, Contributor shall provide to Acquirer the services set forth in Exhibit A attached hereto and incorporated herein by reference to transition ownership and operation of the businesses of the Company to Acquirer
(the “Services”); provided that, notwithstanding anything in this Agreement to the contrary, the Services shall not include any services to the extent such services were, prior to the Closing, provided by one or more of the
Transferred Employees. 
 (c) The Services will be provided solely by the employees designated in Exhibit B,
provided that from time to time Acquirer shall have the right to reduce the number of employees designated to provide the Services by providing a written notice to Contributor at least ten (10) days prior to the end of any Service Month
(as defined below), with such reduction taking effect at the end of such Service Month. 
 (d) The parties agree that
Exhibit A and Exhibit B may be amended by mutual agreement of the parties from time to time in accordance with Section 6(g). 
 2. Fees, Reimbursable Costs, and Payment. 
 (a)
Fees. Acquirer shall (i) with respect to the Services rendered during the Initial Service Period and the first three Extended Service Periods (if any), pay to Contributor the fully-burdened monthly cost set forth in Exhibit B for
each employee performing the Services for Acquirer hereunder in each Service Month (based on the allocation of each such employee’s time to performing the Services for Acquirer as set forth on Exhibit B, as amended from time to time by
mutual agreement of the parties) and (ii) with respect to the Services rendered during the Extended Service Periods (if any) beginning at least [            ]2 months after the Effective Date, pay to Contributor an amount equal
to 1.25 times the fully-burdened monthly cost set forth in Exhibit B for each employee performing the Services for Acquirer hereunder in each Service Month (based on the allocation of each such employee’s time to performing the Services
for Acquirer as set forth on Exhibit B, as amended from time to time by mutual agreement of the parties) (collectively the “Fees”). “Service Month” shall mean the period beginning on the Effective Date and
continuing until the end of the current calendar month, and each successive calendar month thereafter, until the end of the Service Period. In addition, Acquirer shall pay directly or reimburse Contributor for any and all out-of-pocket costs
incurred by Contributor in providing the Services. 
 (b) Payment. Contributor shall submit an invoice to Acquirer within
ten (10) days following the end of each Service Month (as adjusted for any underpayments or overpayments attributable to an earlier Service Month) of all amounts due under Section 2(a) in the prior Service Month and Acquirer shall
pay any undisputed invoice amount within thirty (30) days following the date of Acquirer’s receipt thereof from Contributor. Invoices shall include supporting detail documentation for any labor, supervision, materials, equipment, and
related services rendered (including for all out-pocket-costs). Any reimbursement payment for out-of-pocket costs not properly paid within thirty (30) days following the date of Acquirer’s receipt of invoice from Contributor shall bear
interest at a rate equal to five percent (5%) per annum. 
  

	2 	 Parties to agree on this period prior to Closing. 

  
 2 

 (c) Audit. Contributor shall, for a period of two (2) years after the expiration
or termination of this Agreement, maintain records and other evidence sufficient to accurately and properly reflect the performance of the Services hereunder and the amounts invoiced by Contributor to Acquirer with respect thereto. Acquirer shall
have access at all reasonable times during such period to examine and obtain (at Acquirer’s expense) copies of such records for the purpose of auditing and verifying the accuracy of the invoices submitted by Contributor regarding the amounts
due Contributor. 
 3. Standards for the Provision of Services. 
 (a) Contributor shall, subject to the terms of this Agreement, devote to the performance of the Services the personnel designated pursuant to Exhibit B (as adjusted pursuant to
Section 1(c)) and shall use its commercially reasonable efforts to cause such employees of Contributor to continue providing the Services during the Services Period as long as they are employed by Contributor. 

(b) Contributor and Acquirer shall each designate a representative to serve as the “contract manager” who shall have the
responsibility for coordinating the provision of the Services and the general administration of this Agreement on behalf of Contributor and Acquirer, respectively. The names of such contract managers are set forth on Exhibit C hereto.

 (c) The Services shall be performed in accordance with applicable Law, and in a manner and quality that are substantially
consistent with Contributor’s past practice in performing the Services for the benefit of the Company. Prior to the commencement of any Services rendered for a Service Month, Contributor shall submit to Acquirer a plan of the Services to be
rendered and scope of work in or for such Service Month and Contributor shall notify Acquirer of any material deviation made to such plan during such Service Month. Contributor shall not be liable or held accountable in damages or otherwise, for any
error of judgment or any mistake of fact or Law or for anything that Contributor does or refrains from doing in good faith hereunder. 
 (d) Contributor shall (i) secure (at Acquirer’s expense) all necessary third-party consents, permits and governmental approvals required for Contributor to provide the Services, and
(ii) report and pay all Taxes of Contributor, including payroll, sales, use, excise and occupational taxes, applicable to the provision of the Services by Contributor hereunder. In addition, Contributor shall at all times comply with any
applicable Permits and Laws relating to the Services provided hereunder and shall promptly notify Acquirer upon receiving notice of any investigation or notice regarding any noncompliance or alleged violation with respect thereto which result from
Contributor providing the Services. 
 (e) Acquirer shall furnish, or cause to be furnished, to Contributor such access,
information, documentation, services and materials as are reasonably requested by Contributor to enable Contributor to perform the Services. 
 (f) In providing the Services, Contributor shall not be obligated to acquire new, additional, replacement or different personnel, equipment or resources, or to provide services incidental to or ancillary
to the Services. Contributor may use contractors, subcontractors, 

  
 3 

 
vendors or other third parties to provide some or all of the Services to be provided by Contributor; provided however that Contributor shall remain responsible for the performance of such
subcontractor as it Contributor were performing such services itself. 
 (g) It is understood and agreed that Contributor is not
a professional provider of the types of services included in the Services. The Services will not necessarily be uninterrupted or error-free. Contributor’s obligation hereunder is to use reasonable efforts to perform the Services effectively and
efficiently and to address any defects in the Services, all within the constraints of available personnel and other resources. It is understood and agreed that Contributor’s personnel performing the Services have other responsibilities for
Contributor and its Affiliates, and will only dedicate the allocation of time as set forth in Exhibit B. 
 (h) IT IS
SPECIFICALLY UNDERSTOOD AND AGREED BY THE PARTIES THAT THERE ARE NO WARRANTIES OR REPRESENTATIONS WITH RESPECT TO THE PROVISION OF SERVICES BY CONTRIBUTOR HEREUNDER, WHETHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE SPECIFICALLY DISCLAIMED. 
 (i) Contributor shall not be required
to purchase any equipment in order to provide the Services. If Contributor and Acquirer agree that Contributor will require additional equipment to provide the Services, (including but not limited to hardware, software and associated software
licensing fees), Acquirer shall reimburse Contributor at 100% of the actual paid-out costs incurred by Contributor for such items in accordance with Section 2(b); provided that upon termination of this Agreement such items shall
be transferred by Contributor to Acquirer. 
 (j) Neither Contributor nor any of its Affiliates will be required to perform or
to cause to be performed any of the Services for the benefit of any third party or any Person other than the Company and Acquirer (to the extent relating to the Company’s business). 

 

	4.	Termination of the Services. 

 (a) Option to Terminate Services. Acquirer may elect for any reason, by giving written notice to Contributor at least five (5) Business Days in advance, to terminate the provision by
Contributor of any or all categories of the Services (set forth on Exhibit A hereto) provided to Acquirer; provided, however, that Acquirer shall remain liable for and shall pay the Fees accrued until the end of the period agreed upon
pursuant to Section 1(c). Contributor shall submit to Acquirer the final invoice for the Services rendered within sixty (60) days of notice to terminate the Services. 

(b) Contributor’s Right to Suspend Performance. Contributor shall have the right to suspend the performance of the Services
under this Agreement if Acquirer fails to make payments due, owing and not disputed in good faith, to Contributor as required under this Agreement and such failure has not been cured within fifteen (15) days after delivery of written notice of
such failure to Acquirer. 

  
 4 

 (c) Effect of Termination. Applicable provisions of this Agreement shall survive
expiration or early termination of this Agreement to the extent necessary to enforce or complete the duties, obligations or responsibilities of the parties arising prior to such expiration or termination and, as applicable, to provide for final
billings related to the period prior to expiration or termination and indemnification obligations provided in this Agreement. 
 5.
Relationships Among the Parties. Contributor shall be an independent contractor with respect to the Services it provides hereunder. Nothing in this Agreement shall cause the relationship between Contributor and Acquirer or any of its
Affiliates to be deemed to constitute an agency, partnership, or joint venture, or to cause either of Contributor or Acquirer or any of its Affiliates to be treated as a co-employer with respect to employees, or to cause Contributor or any of its
Affiliates to have any burdens or obligations of ownership or similar responsibilities with respect to the Purchased Interests after the Closing. None of Contributor or any of its respective officers or employees shall have or hold themselves out as
having any right, power or authority to make any warranty or representation on behalf of Acquirer, contract for Acquirer, or commit Acquirer to any obligation or undertaking other than actions taken reasonably by Contributor in connection with an
emergency situation of which Contributor notifies Acquirer within a reasonable time after its occurrence. The parties hereby acknowledge and agree that the terms of this Agreement and provision of the Services under this Agreement in no way provide
or require that (a) Contributor or any of its Affiliates in any way sponsor, maintain, contribute to, or have any obligation (fiduciary or otherwise) with respect to any compensation or any benefit plan, program, policy and/or arrangement
(whether governed by ERISA, securities laws, or otherwise) with respect to any employees of Acquirer providing the Services or (b) Acquirer or any of its Affiliates in any way sponsor, maintain, contribute to, or have any obligation (fiduciary
or otherwise) with respect to any compensation or any benefit plan, program, policy and/or arrangement (whether governed by ERISA, securities laws, or otherwise) with respect to any employees of Contributor providing the Services; provided
that Acquirer acknowledges that the fully burdened cost of each employee performing the Services hereunder includes a component attributable to the benefits and insurance provided by or on behalf of Contributor to such employee. 

6. Indemnification and Limitation of Liability. 
 (a) For Services provided after the end of the Initial Service Period, subject to the terms and conditions of this Section 6, Acquirer hereby releases and agrees to defend, indemnify, and hold
harmless Contributor, its affiliates, and their respective officers, directors, shareholders, members, employees, representatives, agents and trustees (“Contributor Indemnified Parties”), from and against any and all losses or
damages caused by, arising out of, or in connection with the performance of the Services after the Initial Service Period (other than in the case of Contributor’s willful misconduct), arising during the Service Period (other than the Initial
Service Period), or after completion of the Service Period (other than the Initial Service Period), and in any manner directly or indirectly caused, occasioned or contributed to, in whole or in part, or claimed to be caused, occasioned or
contributed to, in whole or in part, by the following: 
 (i) The sole negligence or fault, whether active or
passive, of Contributor Indemnified Parties, their respective contractors, subcontractors and/or vendors (or any of their respective owners, directors, officers, employees or agents), or of any third party; 

  
 5 

 (ii) The concurrent negligence or fault, whether active or passive, of any
combination of Contributor Indemnified Parties, Contributor, or its contractors, subcontractors and/or vendors, or any third party (or any of their respective owners, directors, officers, employees or agents); or 

(iii) Where liability with or without fault is imposed or sought to be imposed, on the basis of any theory of strict
liability by operation of law. 
 (b) IT IS THE INTENTION OF THE PARTIES THAT THE EXCULPATION, DEFENSE AND INDEMNITY OBLIGATIONS
OF CONTRIBUTOR UNDER THIS SECTION 6 ARE WITHOUT REGARD TO WHETHER THE NEGLIGENCE, FAULT OR STRICT LIABILITY OF A CONTRIBUTOR INDEMNIFIED PARTY IS A CONTRIBUTORY FACTOR, AND SUCH OBLIGATIONS ARE INTENDED TO PROTECT AND INDEMNIFY THE
CONTRIBUTOR INDEMNIFIED PARTIES FROM AND AGAINST ANY AND ALL LIABILITY ARISING FROM THE PERFORMANCE OF THIS AGREEMENT, INCLUDING LIABILITY BASED ON OR RESULTING FROM THE SOLE OR CONCURRENT NEGLIGENCE, FAULT OR STRICT LIABILITY OF THE CONTRIBUTOR
INDEMNIFIED PARTIES; PROVIDED THAT NOTHING HEREIN SHALL PROTECT OR INDEMNIFY A CONTRIBUTOR INDEMNIFIED PARTY FROM LIABILITY BASED ON OR RESULTING FROM ITS WILLFUL MISCONDUCT. 
 (c) NOTWITHSTANDING ANYTHING TO THE CONTRARY CONTAINED HEREIN, NONE OF THE ACQUIRER OR ANY OF ITS RESPECTIVE AFFILIATES SHALL BE ENTITLED TO CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES IN CONNECTION WITH
THIS AGREEMENT AND THE SERVICES CONTEMPLATED HEREBY AND THE ACQUIRER, FOR ITSELF AND ON BEHALF OF ITS AFFILIATES, HEREBY EXPRESSLY WAIVES ANY RIGHT TO CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES IN CONNECTION WITH THIS AGREEMENT AND THE SERVICES
CONTEMPLATED HEREBY. THE FOREGOING LIMITATION SHALL NOT APPLY TO ANY LIABILITY BASED ON OR RESULTING FROM THE WILFUL MISCONDUCT OF CONTRIBUTOR. 

7. Access to Facilities. To the extent reasonably required for employees of Contributor to perform the Services, Acquirer shall permit Contributor
and its agents, contractors, subcontractors, servants and employees reasonable access to facilities owned or operated by the Company, and electronic access to operating data necessary for Contributor to perform the Services, subject to the usual and
customary safety and security restrictions developed, observed and enforced in the ordinary course at such facilities. 
 8. Other
Provisions. 
 (a) Entire Agreement. This Agreement constitutes the entire understanding and agreement of the parties
with respect to the subject matter hereof, and supersedes all prior written or oral and all contemporaneous oral agreements, understandings and negotiations among the parties with respect to the subject matter hereof, except for the Contribution
Agreement, the documents and instruments and other agreements specifically referred to therein or delivered pursuant thereto, including the Exhibits, Schedules, and ancillary agreements thereto insofar as they are applicable with respect to the
parties. 

  
 6 

 (b) Notices. All notices, requests, demands and other communications required or
permitted to be given under this Agreement shall be deemed to have been duly given if in writing sent via personal delivery, or by overnight delivery service or facsimile transmission (with confirmed receipt) addressed as follows: 

If to Contributor, to: 
 Caiman Energy, LLC 
 5949 Sherry Lane, Suite 1300 

Dallas, TX 75225 

Attention: Tony Strehlow 
 Facsimile: (214) 580-3750 
 with a copy (which shall not constitute notice)
to: 
 Vinson & Elkins LLP 
 1001 Fannin St., Suite 2500 
 Houston, TX 77002-6760 

Attention: Douglas E. McWilliams 
 Facsimile: (713) 615-5725 
 If to Acquirer, to: 

Williams Partners L.P. 
 One Williams Center 
 Tulsa, Oklahoma 74172-0172 

Attention: Senior Vice President, Corporate Strategic Development 
 Fax: (918) 573-4900 
 with a copy (which shall not constitute notice) to:

 Williams Partners L.P. 
 One Williams Center 
 Tulsa, Oklahoma 74172-0172 

Attention: General Counsel 
 Fax: (918) 573-5942 
 Gibson, Dunn & Crutcher LLP 

1801 California Street 
 Suite 4200 
 Denver, CO 80202 

Attention: Steven Talley 
 Facsimile: (303) 298-5907 
 Any party may change the address to which the communications are
to be directed to it by giving notice to the other parties in the manner provided in this Section 6(b). 

  
 7 

 (c) Force Majeure. Contributor’s obligations to provide the Services shall be
suspended during the period, and to the extent that Contributor is prevented or hindered, in whole or in part, from complying therewith by any cause beyond its reasonable control, including, without limitation, extreme weather, fire, flood,
earthquakes, other elements of nature or acts of God, civil disturbances, riots, rebellions, revolutions, accidents, labor disputes, loss of employees (due to death, injury, attrition or otherwise), court orders, acts of a governmental entity, acts
of war, terrorist activity, or conditions arising out of or attributable to war (whether declared or undeclared) or terrorist activity, significant spread of contagious diseases, or shortages of equipment, materials, labor or other resources (in
each case, a “Force Majeure Event”). In such event, Contributor shall give written notice of suspension to Acquirer as soon as reasonably practicable, specifying the Force Majeure Event and the Services affected and stating the date
and extent of such suspension. Contributor shall use commercially reasonable efforts to resume the suspended Services as soon as reasonably practicable, and shall notify Acquirer in writing of the date of resumption of the provision of the
Services. 
 (d) Transfer and Assignment; Successors. Without the prior written consent of the other parties, which
consent may be withheld in such other party’s sole discretion, this Agreement and the rights and obligations hereunder shall not be assigned by any party. Subject to the foregoing, this Agreement shall be binding upon, and inure to the benefit
of, the respective successors and permitted assigns of each of the parties. 
 (e) Headings. The headings in this
Agreement are for reference purposes only and shall not in any way affect the meaning or interpretation of this Agreement. 

(f) Governing Law. This Agreement shall be governed by and construed in accordance with the law of the State of Texas, without
regard to the conflicts of law rules thereof. Each of the parties irrevocably agrees that any legal action or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby brought by any other party or its
successors or assigns shall be brought be brought in the United States District Court for the Northern District of Texas or any Texas State court sitting in Dallas, Texas so long as one of such courts shall have subject matter jurisdiction over such
suit, action or proceeding, and that any cause of action arising out of this Agreement shall be deemed to have arisen from a transaction of business in the State of Texas, and each of the parties hereby irrevocably submits to the exclusive
jurisdiction of the aforesaid courts (and of the appropriate appellate courts therefrom) for itself and with respect to its property, generally and unconditionally, with regard to any such action or proceeding arising out of or relating to this
Agreement and the transactions contemplated hereby. Each of the parties agrees not to commence any action, suit or proceeding relating thereto except in the courts described above in Texas, other than actions in any court of competent jurisdiction
to enforce any judgment, decree or award rendered by any such court. Each of the parties further agrees that notice as provided herein shall constitute sufficient service of process and the parties further waive any argument that such service is
insufficient. Each of the parties hereby irrevocably and unconditionally waives, and agrees not to assert, by way of motion or as a defense, counterclaim or otherwise, in any action or proceeding arising out of or relating to this Agreement or the
transactions contemplated hereby, (a) any claim that it is not personally subject to the jurisdiction of the courts described herein for any reason, (b) that it or its property is exempt or immune from jurisdiction of any such court or
from any legal process commenced in such courts (whether through service of notice, attachment prior to judgment, 

  
 8 

 
attachment in aid of execution of judgment, execution of judgment or otherwise) and (c) that (i) the suit, action or proceeding in any such court is brought in an inconvenient forum,
(ii) the venue of such suit, action or proceeding is improper, or (iii) this Agreement, or the subject matter hereof, may not be enforced in or by such courts. 
 (g) Amendments; Waiver. This Agreement cannot be terminated, altered or amended except pursuant to an instrument in writing signed by all the parties. No waiver by any party of any of the
provisions hereof shall be effective unless explicitly set forth in writing and signed by the party so waiving. No failure to exercise, or delay in exercising, any right, remedy, power or privilege arising from this Agreement shall operate or be
construed as a waiver thereof; nor shall any single or partial exercise of any right, remedy, power or privilege hereunder preclude any other or further exercise thereof or the exercise of any other right, remedy, power or privilege. 

(h) No Third Party Beneficiaries. Nothing in this Agreement is intended or shall be construed to give any Person, other than the
parties, their successors and permitted assigns, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. 
 (i) Negotiated Agreement. This Agreement has been negotiated by the parties and the fact that any draft will have been prepared by any party shall not give rise to any presumption for or against
any party or be used in any respect or forum in the construction or interpretation of this Agreement or any of its provisions. 

(j) Reasonable Cooperation. During the Service Period, each of the parties shall reasonably cooperate with each other to perform
its obligations under this Agreement. 
 (k) Counterparts. This Agreement may be executed in any number of counterparts,
each of which shall be deemed an original, and all of which shall constitute collectively, one instrument. 
 (l) Further
Assurances. In connection with this Agreement and all transactions contemplated by this Agreement, by execution of this Agreement each party agrees to execute and deliver such additional documents and instruments as may be necessary or
appropriate to effectuate, carry out and perform all of the terms, provisions and conditions of this Agreement. 
 [Signatures
page follows.] 

  
 9 

 IN WITNESS WHEREOF, each party hereto has caused this Agreement to be duly executed as of
the date first above written. 
  

			
	CAIMAN ENERGY, LLC
		
	By:	 	 
	Name:	 	
	Title:	 	

  

			
	WILLIAMS PARTNERS L.P.
		
	By:	 	Williams Partners GP LLC,
		 	its General Partner

  

					
		 	By:	 	 
		 	Name:	 	
		 	Title:	 	

 SIGNATURE PAGE 

TO 

TRANSITION SERVICES AGREEMENT 

 EXHIBIT A 
 SERVICES 
 [Scope of Services under continuing review by Acquirer, including the extent, if
any, of consultation services to be provided by current Caiman senior management team.] 
  

	
	Engineering, Construction & Operations
	
	 1. Operations

	
	 2. Maintenance

	
	 3. Procurement

	
	 4. Wellhead Connections

	
	 5. Gathering System Expansion

	
	 6. Permitting

	
	 7. Contracting

	
	 8. Project Management

	
	 9. System Modeling

	
	 10. Capital Budgeting

	
	 11. O&M Planning

	
	 12. Drilling Schedule Confirmation

	
	 13. Gathering Location Planning

	
	 14. Land Management

	
	 15. Measurement

	
	Commercial Services
	
	 16. Customer Service

	
	 17. Contract Administration

	
	 18. Business Development

	
	 19. Gas Control

	
	 20. GIS / Mapping

	
	 21. Gas Control

	
	Accounting & Finance
	
	 22. Revenue, billings and collections

	
	 23. Expenses, payables and payments

	
	 24. Gas Accounting

	
	 25. Planning (Budgeting & Forecasting)

	
	 26. Audit

	
	 27. Credit

	
	 28. Statements & Invoicing for services provided

	
	 29. Preparation of Periodic Financial Statements

	
	 30. Project Accounting

	
	 31. Information Technology

	
	 32. Financial Analysis

 Exhibit A 

 EXHIBIT B 
 ALLOCATED EMPLOYEES 
  

							
	 Name
	  	 Job Title
	  	 Fully Burdened Cost
	  	 Allocation of time to the Services

Exhibit B 

 EXHIBIT C 
 CONTRACT MANAGERS 
 Contributor: 
 [            ] 
 Acquirer:

 [TBD] 
 Exhibit CSchedule of Loan Agreements

 Exhibit 4.9.1 
 SCHEDULE OF LOAN AGREEMENTS BETWEEN AND AMONG CERTAIN PRC SUBSIDIARY OF 

SOUFUN HOLDINGS LIMITED AND SHAREHOLDERS OF A CONSOLIDATED CONTROLLED ENTITY 

 

																			
	 	 	 Date of

Agreement
	 	 Lender
	 	Borrower	 	Consolidated
Controlled
Entity	 	Borrower’s
Equity
interest 
in
Consolidated
Controlled
Entity	 	 	Amount of
Loan	 	Date of
Provision
of Loan	 	Term
of Loan
(Years)
	1.	 	November 24, 2006	 	 Beijing SouFun Network Technology Co., Ltd.
	 	Tianquan
Mo	 	Shanghai
China Index
Consultancy
Co., Ltd.	 	 	80	% 	 	RMB400,000	 	November 24,
2006	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB100,000	 	November 22,
2006	 	
	2.	 	November 30, 2006	 	Beijing SouFun Network Technology Co., Ltd.	 	Tianquan
Mo	 	Shanghai
SouFun
Advertising
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	November 30,
2006	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB200,000	 	November 27,
2006	 	
	3.	 	December 19, 2006	 	Beijing SouFun Network Technology Co., Ltd.	 	Tianquan
Mo	 	Beijing
Century Jia
Tian Xia
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	December 13,
2006	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB200,000	 	December 12,
2006	 	
	4.	 	March 25, 2010 (retroactive to December 22, 2008)	 	Beijing SouFun Network Technology Co., Ltd.	 	Tianquan
Mo	 	Beijing
Century Jia
Tian Xia
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB7,200,000	 	Not specified	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB1,800,000	 		 	
	5.	 	 March 25, 2010
 (retroactive to
August 21, 2009)
	 	Beijing SouFun Network Technology Co., Ltd.	 	Tianquan
Mo	 	Tianjin Xin
Rui Jia Tian
Xia
Advertising
Co., Ltd.	 	 	80	% 	 	RMB400,000	 	August 21,
2009	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB100,000	 		 	
	6.	 	July 8, 2011	 	Soufun Media Technology (Beijing) Co., Ltd	 	Tianquan
Mo	 	Beijing Yi
Ran Ju Ke
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	June 30,
 2011
	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB200,000	 		 	
	7.	 	 March 25, 2010
 (retroactive to
September 9, 2009)
	 	Beijing SouFun Network Technology Co., Ltd.	 	Tianquan
Mo	 	Beijing Li
Tian Rong
Ze
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	September 9,
2009	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB200,000	 		 	
	8.	 	 2004
 (retroactive to
2000)
	 	Soufun Media Technology (Beijing) Co., Ltd	 	Tianquan
Mo	 	Beijing Jia
Tian Xia
Advertising
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	2000	 	10
		 		 	 	Jiangong
Dai	 	 	 	20	% 	 	RMB200,000	 		 	

  
 1 

																					
	 	 	 Date of

Agreement
	 	 Lender
	 	Borrower	 	 	Consolidated
Controlled
Entity	 	Borrower’s
Equity
interest 
in
Consolidated
Controlled
Entity	 	 	Amount of
Loan	 	Date of
Provision
of Loan	 	Term
of Loan
(Years)
	9.	 	 2004
 (retroactive to the date
of provision of the loan)
	 	Soufun Media Technology (Beijing) Co., Ltd	 	 
 	Tianquan
Mo	  
  	 	Beijing Jia
Tian Xia
Advertising
Co., Ltd.	 	 	80	% 	 	RMB7,200,000	 	Not specified	 	10
	10.	 	 March 25, 2010

(retroactive to November 13, 2007)
	 	Beijing SouFun Network Technology Co., Ltd.	 	 
 	Tianquan
Mo	  
  	 	Beijing Jia
Tian Xia
Advertising
Co., Ltd.	 	 	80	% 	 	RMB400,000	 	Not specified	 	10
		 	 	 	 
 	Jiangong
Dai	  
  	 	 	 	20	% 	 	RMB100,000	 		 	
	11.	 	 August 17, 2006

(retroactive to December 16, 2005)
	 	Soufun Media Technology (Beijing) Co., Ltd	 	 
 	Tianquan
Mo	  
  	 	Beijing
SouFun
Science and
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB1,440,000	 	December 14,
2005	 	10
		 	 	 	 
 	Jiangong
Dai	  
  	 	 	 	20	% 	 	RMB360,000	 	December 16,
2005	 
	12.	 	 April 1, 2008

(retroactive to the date of provision of the loan)
	 	Beijing SouFun Network Technology Co., Ltd.	 	 
 	Tianquan
Mo	  
  	 	Beijing
SouFun
Science and
Technology
Development
Co., Ltd.	 	 	80	% 	 	RMB7,360,000	 	Not specified	 	10
		 	 	 	 
 	Jiangong
Dai	  
  	 	 	 	20	% 	 	RMB1,840,000	 		 
	13.	 	November 13, 2007	 	Beijing SouFun Network Technology Co., Ltd.	 	 
 	Tianquan
Mo	  
  	 	Tianjin Jia
Tian Xia
Advertising
Co., Ltd.	 	 	80	% 	 	RMB800,000	 	November 13,
2007	 	10
		 	 	 	 
 	Jiangong
Dai	  
  	 	 	 	20	% 	 	RMB200,000	 	 

  
 -2-

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