Document:

Financial Matters Agreement

 Exhibit 10.2 
 FINANCIAL MATTERS AGREEMENT 
 This Financial Matters
Agreement is entered into as of this 31st day December, 2001 by and between USX Corporation, a Delaware corporation (“Parent”) and United States Steel LLC, a Delaware limited liability company (“Steel”). 
 WITNESSETH 
 WHEREAS, Steel is a
wholly owned subsidiary of Parent; and 
 WHEREAS, Parent, Steel and another corporation named USX Corporation (“Old USX”) were
parties to a Holding Company Reorganization Agreement dated as of July 1, 2001 (the “Reorganization Agreement”); and 
 WHEREAS, the Reorganization Agreement was entered into to better align the assets and liabilities of Old USX with its two classes of common stock, namely USX—Marathon Group Common Stock and USX—U.S. Steel Group Common Stock; and

 WHEREAS, in connection with the Reorganization Agreement, Parent assumed certain obligations of Old USX and Steel became liable for all
other obligations of Old USX as was required by the terms of such obligations; and 
 WHEREAS, to induce General Electric Credit Corporation
of Delaware (“GECC”) and Southern Energy Clairton, L.L.C (“SECL”) to enter into Amendment Number 1 to the Amended and Restated Limited Partnership Agreement entered into and effective as of June 1, 1997 by and among Steel,
GECC and SECL, Parent delivered to GECC and SECL, a guarantee dated July 2, 2001 of Steel’s obligations under the aforesaid Partnership Agreement and certain related instruments and agreements (the “1314B Guarantee”); and

 WHEREAS, to induce certain counterparties not to declare a “credit event upon merger” under certain ISDA swap agreements, Parent
executed and delivered to various counterparties guarantees of the obligations of Steel under the aforesaid ISDA swap agreements (the “Swap Guarantees”); and 
 WHEREAS, Parent and Steel are also parties to an Agreement and Plan of Reorganization dated as of July 31, 2001 (the “Separation Agreement”), pursuant to which, and subject to the terms and conditions
set forth therein, all of the shares of USX—U.S. Steel Group common stock will be converted into shares of common stock of United States Steel Corporation; and 
 WHEREAS, Parent and Steel have identified certain obligations of Parent that are closely related to the business of Steel; and 
 WHEREAS, In light of these relationships and in furtherment of the purpose of the Reorganization Agreement and the Separation Agreement Parent and Steel have agreed that Parent will assign these obligations to Steel
and that Steel will assume and discharge these obligations; and 

 WHEREAS, Parent and Steel wish to establish how certain other debt obligations and financial matters
shall be arranged. 
 NOW, THEREFORE, in consideration of the premises, the mutual covenants contained herein and intending to be legally
bound hereby, the parties hereto agree as follows: 
 Article I 
 Industrial Revenue Bonds 
 1.1 Assumption of Industrial Revenue Bond
Obligations. Parent is the obligor on $479,490,000 of obligations pursuant to agreements with respect to an equal principal amount of tax exempt environmental revenue bonds issued by various governmental issuers all of which are more
particularly described on Schedule 1.1 attached hereto (collectively, the “Industrial Revenue Bonds”). 
 (a) For a
term beginning on the date hereof and ending on the earlier of the tenth anniversary of the Separation Effective Time (as defined in the Separation Agreement) or December 31, 2040, Parent hereby assigns to Steel and Steel assumes all of
Parent’s rights and obligations with respect to the Industrial Revenue Bonds including, without limitation, the obligation to pay debt service on the Industrial Revenue Bonds. The term “debt service” is meant to include all sums due
with respect to the Industrial Revenue Bonds including, without limitation, payments of principal, interest and premium, letter of credit fees and expenses (incurred by either Parent or Steel or both), trustee fees and expenses, issuer fees and
expenses and remarketing fees and expenses. 
 (b) During the term of this Agreement, Steel shall provide all notices and take
such other actions as may be necessary or appropriate in connection with ongoing obligations related to the Industrial Revenue Bonds. 
 Steel’s obligations with respect to the Industrial Revenue Bonds shall include payment of amounts due upon any defaults or acceleration of any of the obligations with respect to the Industrial Revenue Bonds other than defaults caused
by Parent. 
 1.2 Rights of Steel. During the term of this Agreement, Steel shall have the right to exercise all of the existing
contractual rights of Parent concerning the Industrial Revenue Bonds including all rights to the selection of interest rates, making prepayments or granting or releasing security interests and Parent shall use commercially reasonable efforts to
assist Steel in its exercise of such rights. Notwithstanding the foregoing, Steel shall have no right to increase the principal amount or to change the maturity of any of the Industrial Revenue Bonds without the prior written consent of Parent
except as set forth in Section 1.4(b). 
 1.3 Variable Rate Industrial Revenue Bonds. The Industrial Revenue Bonds that are
designated on Schedule 1.1 as variable rate environmental revenue bonds are referred to as the “Variable Rate Bonds.” During the term of this Agreement Steel may from time to time direct conversion of the Variable Rate Bonds to different
interest rate periods, and Parent shall undertake all reasonable efforts to effectuate each such conversion. Parent will not, without the prior written consent of Steel, convert any of the 

  

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Variable Rate Bonds to a different interest rate. Notwithstanding anything in this Agreement to the contrary, Steel’s ability to direct conversion of
the Variable Rate Bonds to a different interest rate period and maintain a given interest rate period shall be subject to Parent’s ability to maintain appropriate letters of credit respecting the Variable Rate Bonds. Parent shall undertake
commercially reasonable efforts to obtain and maintain letters of credit and/or such other liquidity facilities (each, a “Liquidity Facility”) as may be permitted by the applicable Bond Documents (hereinafter defined). If Parent’s
ability to obtain and maintain Liquidity Facilities is reduced so that Parent’s business is adversely affected in a material way, Parent may, following timely written notice to Steel, decline to renew one or more Liquidity Facilities with
respect to one or more issues of Variable Rate Bonds. Concurrently with said notice Parent shall supply an opinion of an independent third party regarding the availability of Liquidity Facilities to Parent. Steel may at any time provide substitute
Liquidity Facilities applicable to one or more issues of the Variable Rate Bonds. 
 1.4 Refinancing 
 (a) If Steel notifies Parent in writing that Steel elects to redeem all or part of any of the Industrial Revenue Bonds and supplies
adequate funds therefor, Parent shall reasonably assist Steel to effectuate such redemption(s) and Steel’s obligations under this Agreement shall be reduced accordingly. Parent shall not, without the prior written consent of Steel, direct the
redemption of any Industrial Revenue Bonds prior to maturity. 
 (b) If Steel elects to refinance all or part of any of the
Industrial Revenue Bonds through a tax-exempt refunding or otherwise, Parent shall take all such reasonable action as may be necessary or appropriate to reasonably assist Steel in completing the transactions contemplated by each such refinancing, so
long as after the completion of such transactions, Parent does not have any obligations with respect to any new debt issued as a result. Steel agrees to undertake commercially reasonable efforts to effect such refinancings before the end of the term
described in Section 1.5 hereof. 
 1.5 Release by Parent at end of Term. On the earlier of the tenth anniversary of the
Separation Effective Time (as defined in the Separation Agreement) or December 31, 2040 Steel shall pay to Parent an amount equal to the principal amount of, all accrued and unpaid debt service then outstanding on, and any premium required to
immediately retire each Industrial Revenue Bond. Upon such payment Parent shall retire all the then outstanding Industrial Revenue Bonds. 
 Article II 
 Leases 
 2.1 Assumption of Capital and Other Leases. Parent hereby assigns to Steel and Steel assumes all rights and obligations of Parent relating to the leases listed in Schedule 2.1 attached hereto (the “Assumed
Leases”) including without limitation, the obligation to pay all sums due under the Assumed Leases. Steel’s obligations with respect to the Assumed Leases shall include payment of amounts due upon any defaults or acceleration of any of the
obligations with respect to the Assumed Leases other than defaults caused by Parent. 
  

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 2.2 Contingent Nature of Certain Leases. Certain of the Assumed Leases, as designated in Schedule
2.1, were previously assigned to and assumed by third parties in agreements between such third parties and Old USX (the “Previously Assigned Leases”). Steel assumes and shall discharge all obligations of Old USX relating to the Previously
Assigned Leases. 
 2.3 Rights of Steel. Steel shall have the right to exercise all of the existing contractual rights of Parent
concerning the Assumed Leases including all rights relating to purchase options, prepayments or granting or releasing security interests, and Parent shall use commercially reasonable efforts to assist Steel in its exercise of such rights.
Notwithstanding the foregoing Steel shall have no right to increase the amounts due under or lengthen the term of any of the Assumed Leases without the prior consent of Parent other than extensions set forth in the terms of any of the Assumed
Leases. 
 2.4 Rights of Parent. Steel shall notify Parent of its decision whether to exercise any purchase option under the Assumed
Leases and if Steel elects not to so exercise Parent shall have the right but not the obligation to do so. Parent agrees to use commercially reasonable efforts to comply with all provisions of the Assumed Leases and shall not take any action that
would result in a default thereunder. 
 2.5 Assignment of Leases. Steel shall have the right to assign any of its rights and
obligations under the Assumed Leases to any party provided that such assignment shall not release Steel from any of its obligations to Parent relative to such Assumed Leases. 
 Article III 
 Obligations of Each Party 
 3.1 Obligations of Parent. In connection with the Reorganization Agreement Parent assumed certain obligations of Old USX as listed in Schedule 3.1
hereof (the “Parent Obligations”). Parent acknowledges that it is solely responsible for all obligations including debt service under the Parent Obligations. 
 3.2 Contingent Obligations of Steel. Steel remains contingently liable for certain of the Parent Obligations as set forth on Schedule 3.1. Parent agrees that it will use commercially reasonable efforts to cause
Steel to be released from such contingent liability and shall not increase the amounts due under such obligations (other than amounts due under revolving credit facilities that do not exceed the amounts outstanding plus the existing commitments) or
extend the terms thereof without the prior written consent of Steel other than extensions set forth in the terms of any of the Parent Obligations. 
 3.3 Contingent Obligations of Parent. Parent remains contingently liable under the 1314B Guarantee and the Swap Guarantees. Steel agrees that it will use commercially reasonable efforts to cause Parent to be released from the 1314B
Guarantee and each Swap Guarantee and shall not increase the amounts of the obligations guaranteed under the Swap Guarantees without the prior written consent of Parent. Steel further agrees to use commercially reasonable efforts to avoid causing
the amount for which Parent may be liable under the 1314B Guarantee to be increased without the Parent’s prior written consent (such consent not to be unreasonably withheld). 
  

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 Article IV 
 Mutual Obligations 
 4.1 Maintenance of Current Conditions. 
 (a) Each of Steel and Parent agrees to employ all commercially reasonable efforts to take all necessary action or refrain from acting so
as to assure compliance, and to cooperate with the other party in its endeavors to comply, with all obligations under the various documents that were executed and delivered in connection with the Assumed Leases and the Parent Obligations including,
without limitation, covenants respecting the financed facilities, in each case, necessary to avoid the occurrence of a default, acceleration, casualty loss or other termination under any of the Assumed Leases and the Parent Obligations. 

(b) Each of Steel and Parent agrees to employ all commercially reasonable efforts to take all necessary action or refrain from acting
so as to assure compliance, and to cooperate with the other party in its endeavors to comply, with Parent’s obligations under the various documents that were executed and delivered in connection with the issuance of the Industrial Revenue Bonds
(collectively, the “Bond Documents”) including, without limitation, covenants respecting the financed facilities, in each case, necessary to avoid the occurrence of an Event of Default under the Bond Documents or cause the interest on the
Industrial Revenue Bonds to be included in the gross income of the holders thereof except holders who are “substantial users” or “related persons” as defined in Section 147(a) of the Internal Revenue Code of 1986, as amended
or its predecessor. 
 4.2 Relationship of Parties. 
 (a) This Agreement is a general unsecured obligation of each of Parent and Steel (i.e., it ranks equal to accounts payable and other
general unsecured obligations of each party). This Agreement does not contain any financial covenants and Parent and Steel remain free to incur additional debt, grant mortgages or security interests in its property and sell or transfer assets
without the consent of the other. Parent acknowledges that Steel has granted or anticipates granting security interests in its accounts receivable and inventory. 
 (b) This Agreement is a contract between the parties. It does not grant any rights to the holders of the Industrial Revenue Bonds or the
other parties to the Assumed Leases or the Parent Obligations or the beneficiaries of the 1314B Guarantee and the Swap Guarantees. Among other things the parties may agree to amend or modify this Agreement as they mutually agree and nothing herein
creates or is intended to create any obligation to redeem or repurchase any of these instruments. 
  

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 4.3 Events of Default. 
 (a) The following shall be “Events of Default” under this Agreement: 
 (i) (A) Steel shall fail to make any payment under any Bond Document or Assumed Lease when due; 
 (B) Parent shall fail to make any payment under any Parent Obligation when due and such failure causes a default under the applicable Parent Obligation;

 (ii) Either party shall fail to comply with any other covenant contained in this Agreement (including, without limitation,
covenants to comply with covenants under the Bond Documents, the Assumed Leases and the Parent Obligations) and such failure shall continue for more than thirty (30) days after such party becomes aware of it, provided that under the Bond
Documents, Assumed Leases and Parent Obligations such period shall be extended to the extent (but only to the extent) it does not precipitate an event of default under the applicable Bond Documents, Assumed Leases or Parent Obligations; 

(iii) Either party shall make a general assignment for the benefit of creditors, or files or has filed a petition in bankruptcy, or a
petition or answer seeking a readjustment of its indebtedness under the United States Bankruptcy Code or any similar law or code, or consents to the appointment of a receiver or trustee of it or for a substantial part of its properties; or

 (iv) Either party shall be adjudged bankrupt or insolvent, or a petition or proceedings for bankruptcy shall be filed
against it, and such party shall admit the material allegations thereof, or an order, judgment, or decree shall be made approving such a petition, and such order, judgment or decree shall not be vacated or stayed within sixty (60) days of its
entry, or a custodian, receiver or trustee shall be appointed for either party or a substantial part of its properties and remain in possession thereof for sixty (60) days. 
 (b) Upon the occurrence of an Event of Default pursuant to subparagraphs (iii) or (iv) of Section 4.3(a), all sums then or
thereafter due hereunder (including, without limitation, the amounts that may become due under Section 1.4 hereof) shall become immediately due and payable. Upon the occurrence of any one or more of the other Events of Default, all sums then or
hereafter due hereunder shall, at the non-defaulting party’s option, immediately become due and payable. Overdue amounts shall bear interest at a rate of interest equal to that announced from time to time by J. P. Morgan Chase & Co.
(or its successor) as its “prime rate” plus two percent per annum. 
  

	4.4	Indemnification. 

 (a) Steel agrees
to indemnify and hold harmless Parent as well as all shareholders, directors, officers, employees, subsidiaries and agents of Parent (collectively, “Indemnified Persons”) against any and all direct or indirect liability (whether absolute,
accrued or unaccrued, contingent, liquidated or unliquidated, matured or unmatured or known or unknown), indebtedness, obligation, expense, 

  

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claim, deficiency, guarantee or endorsement of or by any such Indemnified Person (including, without limitation, those arising under any law, regulation,
ordinance, or award of any court, tribunal or arbitrator of any kind) together with all reasonable attorney’s fees and other costs and expenses (“Liability”) arising from, relating to or incurred in connection with the Industrial
Revenue Bonds, the Assumed Leases, the 1314B Guarantee or the Swap Guarantees. 
 (b) Parent agrees to indemnify and hold
harmless Steel as well as all Indemnified Persons of Steel against any and all Liability arising from, relating to or incurred in connection with the Parent Obligations. 
 Article V 
 General Provisions 
 5.1. Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of Delaware, without reference to choice of
law principles, including matters of construction, validity and performance. 
 5.2. Notices. All notices shall be sent in accordance
with the Reorganization Agreement. 
 5.3. Third Party Beneficiaries. Nothing in this Agreement shall confer any rights upon any
Person or entity other than the parties hereto and their respective heirs, successors and permitted assigns. Without limiting the foregoing the inclusion of any matter within the defined terms Industrial Revenue Bonds, Assumed Leases or Parent
Obligations is merely for purposes of allocating responsibility for such matter as between the parties hereto and such inclusion does not and is not intended to acknowledge legal enforceability or waive any defenses. 
 5.4. Entire Agreement. This Agreement, contains the entire understanding of the parties hereto and thereto with respect to the subject matter
contained herein and therein, and supersedes and cancels all prior agreements, negotiations, correspondence, undertakings and communications of the parties, oral or written, respecting such subject matter. 
 5.5. Headings. The article, section and paragraph headings contained in this Agreement are for reference purposes only and shall not affect in any
way the meaning or interpretation of this Agreement. 
 5.6. Counterparts. This Agreement may be executed in one or more counterparts
and each counterpart shall be deemed to be an original, but all of which shall constitute one and the same original. 
 5.7. Parties in
Interest; Assignment; Successors. Except as set forth herein, neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by any of the parties hereto without the prior written consent of the other parties.
Subject to the preceding sentence, this Agreement shall inure to the benefit of and be binding upon Steel and Parent and their respective successors and permitted assigns. 
  

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 5.8. Severability; Enforcement. The invalidity of any portion hereof shall not affect the
validity, force or effect of the remaining portions hereof. If it is ever held that any restriction hereunder is too broad to permit enforcement of such restriction to its fullest extent, each party agrees that a court of competent jurisdiction may
enforce such restriction to the maximum extent permitted by law, and each party hereby consents and agrees that such scope may be judicially modified accordingly in any proceeding brought to enforce such restriction. Each party hereby consents to
the exclusive jurisdiction of the Court of Chancery of the State of Delaware or the United States District Court for the District of Delaware to resolve any disputes under this agreement and all parties waive any and all defenses that they may have
to challenge the jurisdiction or venue of such courts. 
 In witness whereof this Agreement is entered into as of the day first written
above. 
  

			
	
	USX CORPORATION
		
	By:	 	/s/ K. L. Matheny
		 	Vice President – Investor Relations
	
	UNITED STATES STEEL LLC
		
	By:	 	/s/ G. R. Haggerty
		 	Vice President – Accounting & Finance

  

 Page 8Insurance Assistance Agreement

 Exhibit 10.3 
 INSURANCE ASSISTANCE AGREEMENT 
 THIS INSURANCE ASSISTANCE AGREEMENT, dated as of December 31,
2001 (“Agreement”), by and between USX Corporation, a Delaware corporation, to be renamed “Marathon Oil Corporation” (“USX”), and United States Steel LLC, a Delaware limited liability company and wholly owned subsidiary
of USX, to be renamed “United States Steel Corporation” (“SteelCo”). 
 WITNESSETH: 
 WHEREAS, this Agreement is made pursuant to and as a condition of the Agreement and Plan of Reorganization, dated as of July 31, 2001
(“Separation Agreement”), by and between USX and SteelCo, pursuant to which the respective businesses of the Marathon Group of USX and the U.S. Steel Group of USX are being separated into two independent companies by merging USX Merger
Corporation, a Delaware corporation and a wholly owned subsidiary of USX (“Merger Sub”), with and into USX, subject to the terms and conditions thereof, and pursuant to Section 251 of the DGCL (the “Separation Merger”), with
USX continuing as the surviving corporation, so that immediately following the Separation Effective Time, SteelCo shall own and operate the business of the U.S. Steel Group and shall be wholly owned by the holders of the then outstanding shares of
USX-U.S. Steel Group Common Stock , and the business of the Marathon Group shall be owned and operated by USX, which shall be a separate and independent entity from SteelCo and shall be wholly owned by the holders of the then outstanding shares of
USX- Marathon Group Common Stock (the “Separation”); 
 WHEREAS, prior to the date hereof, USX implemented a holding company
structure by merging the then existing USX Corporation, a Delaware corporation (“Old USX”), with and into SteelCo, with SteelCo continuing as the surviving entity and a wholly owned subsidiary of USX (the “HoldCo Merger”), so
that immediately following the effective time of the HoldCo Merger, USX became a holding company that owns all of the outstanding equity of Marathon Oil Company (“Marathon”) (which owns and operates the business of the Marathon Group) and
of SteelCo (which owns and operates the business of the U. S. Steel Group); 
 WHEREAS, prior to the time of the HoldCo Merger, the Marathon
Group and the U.S. Steel Group maintained independent property and business interruption insurance policies. Other types of insurance, such as general liability, employer’s liability, aircraft liability, automobile liability, workers’
compensation and executive risk, were purchased and held by Old USX, for the benefit of Old USX and all of its Subsidiaries; 
 WHEREAS,
following the HoldCo Merger, separate policies of insurance for certain general liability, employer’s liability, automobile liability, workers’ compensation, boiler and machinery, and aircraft seat accident were issued to cover
(i) USX, Marathon and its Subsidiaries, on the one hand, and (ii) SteelCo and it Subsidiaries, on the other hand. The remaining policies of insurance held by Old USX were maintained for the benefit of USX and its Subsidiaries; and

 WHEREAS, the parties desire to enter into this Agreement to set forth the parties’ understanding with respect to their respective
responsibilities and rights with respect to various insurance policies and claims associated therewith, both prior to and after the Separation. 

 NOW, THEREFORE, in furtherance of the foregoing and in consideration of the mutual promises and
undertakings contained herein and in any other document executed in connection with this Agreement, the parties agree as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.1 General. Unless otherwise defined herein, capitalized terms used herein shall have their respective meanings as defined in the Separation Agreement. 
 Section 1.2 Other Definitional Provisions. 
 (a) The words “hereof”, “herein”,
“hereunder” and words of similar import, when used in this Agreement, shall refer to this Agreement as a whole and not to any particular provision of this Agreement. 
 (b) The terms defined in the singular shall have a comparable meaning when used in the plural, and vice versa. 
 (c) The
terms “dollars” and “$” shall mean United States dollars. 
 ARTICLE II 
 PRE-SEPARATION INSURANCE 
 Section 2.1 Insurance
for Pre-HoldCo Merger Periods. Prior to the effective time of the HoldCo Merger, USX purchased certain policies of insurance to cover USX and its Subsidiaries, which included, without limitation, workers compensation and general liability fronting
insurance. (The workers compensation and general liability fronting insurance are collectively referred to herein as the “Fronting Insurance”). From and after the effective time of the HoldCo Merger, the rights, liability and
responsibility for insurance claims, retroactive reimbursements, uninsured retentions, and deductibles under the Fronting Insurance shall be as follows. 
 (a) USX shall have all rights in and to all claims, and shall be solely liable for the payment of any retroactive reimbursements, uninsured retentions and deductibles relating to the Fronting Insurance arising out of or relating to events
or conditions occurring prior to the effective time of the HoldCo Merger and associated exclusively with the business of the Marathon Group. 
 (b) SteelCo
shall have all rights in and to all claims, and shall be solely liable for the payment of any retroactive reimbursements, uninsured retentions and deductibles, relating to the Fronting Insurance arising out of or relating to events or conditions
occurring prior to the effective time of the HoldCo Merger and associated exclusively with the business of the U.S. Steel Group. 
 (c) USX shall be entitled
to 65%, and SteelCo shall be entitled to 35%, of all rights in and to all claims, and shall be liable for the payment of any retroactive reimbursements, uninsured retentions and deductibles on this same percentage basis, relating to the Fronting
Insurance arising out of or relating to events or conditions occurring prior to the effective time of the HoldCo Merger and not related exclusively to either Group, including 

  

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however, without limitation, pre-HoldCo Merger claims associated with Old USX’s corporate assets, directors, officers and employees. 
 (d) Policy limits under each of the Fronting Insurance associated with claims arising out of or relating to events or conditions occurring prior to the effective time of
the HoldCo Merger shall be applied on a first-come, first-served basis. Neither party shall be liable to the other in the event policy limits under any of the Fronting Insurance has been exhausted. USX and SteelCo shall not take any action that
would prejudice the access of the other to coverage under the Fronting Insurance. 
 Section 2.2 Insurance for Pre-Separation Periods. Prior to the
Separation Effective Time, USX purchased certain policies of insurance to cover USX and its Subsidiaries, which included Aircraft Liability, Blanket Lost Instruments Bond, Executive Risk - Blended (Directors and Officers, Fiduciary, Crime, EPL),
Excess Directors and Officers, Excess General Liability, Transfer Agents Mail Policy, and Special Insurance (“Joint Insurance Arrangements”). From and after the Separation Effective Time, the rights, liability and responsibility for
insurance claims, uninsured retentions and deductibles under the Joint Insurance Arrangements shall be as follows. 
 (a) USX shall have all rights in and to
all claims, and shall be solely liable for the payment of any uninsured retentions and deductibles, relating to the Joint Insurance Arrangements arising out of or relating to events or conditions occurring prior to the Separation Effective Time and
associated exclusively with the business of the Marathon Group. 
 (b) SteelCo shall have all rights in and to all claims, and shall be solely liable for the
payment of any uninsured retentions and deductibles, relating to the Joint Insurance Arrangements arising out of or relating to events or conditions occurring prior to the Separation Effective Time and associated exclusively with the business of the
U.S. Steel Group. 
 (c) USX shall be entitled to 65%, and SteelCo shall be entitled to 35%, of all rights in and to all claims, and shall be liable for the
payment of any uninsured retentions and deductibles on this same percentage basis, relating to the Joint Insurance Arrangements arising out of or relating to events or conditions occurring prior to the Separation Effective Time and not related
exclusively to either Group, including however, without limitation, pre-Separation claims associated with Old USX’s or USX’s corporate assets, directors, officers and employees. 
 (d) Policy limits under each of the Joint Insurance Arrangements associated with claims arising out of or relating to events or conditions occurring prior to the
Separation Effective Time shall be applied on a first-come, first-served basis. Neither party shall be liable to the other in the event policy limits under any of the Joint Insurance Arrangements has been exhausted. USX and SteelCo shall not take
any action that would prejudice the access of the other to coverage under the Joint Insurance Arrangements. 
  

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 ARTICLE III 
 POST-SEPARATION INSURANCE 
 Section 3.1 Purchase of Insurance Policies. Effective as of the Separation Effective
Time, USX and SteelCo shall each purchase separate policies of insurance to cover the risks covered by the Joint Insurance Arrangements. 
 Section 3.2
Extended Reporting Insurance. 
 (a) At the option of USX or SteelCo, any such party may purchase extended reporting insurance for any or all of the Joint
Insurance Arrangements to cover pre-Separation claims. In the event that both parties elect to purchase the same extended reporting insurance, the cost of such insurance associated to the pre-Separation periods will be split between USX and SteelCo
on a 65%—35% basis, respectively. 
 (b) Policy limits under each of the extended reporting insurance associated with pre-Separation periods shall be
applied on a first-come, first-served basis. Neither party shall be liable to the other in the event policy limits under any extended reporting insurance has been exhausted. With respect to the purchase of extended reporting insurance, USX and
SteelCo shall not take any action that would prejudice the access of the other to such coverage. 
 ARTICLE IV 
 TERM AND AMENDMENT 
 Section 4.1 Term. The term
of this Agreement shall commence on the date set forth above and shall terminate upon the mutual agreement of the parties hereto. 
 Section 4.2
Amendment. This Agreement may be amended, modified or supplemented at any time and shall be evidenced by a written agreement signed by all of the parties hereto. 
 ARTICLE V 
 GENERAL PROVISIONS 
 Section 5.1 Dispute Resolution. Any dispute between the parties shall be subject to the Dispute Resolution procedure set forth in Section 15.2 of the Separation Agreement. 
 Section 5.2 Indemnification. Any claim by a party for indemnification from the other party shall be subject to the Indemnification provisions set forth in Article
XIII of the Separation Agreement. 
 Section 5.3 Expenses. Unless otherwise provided herein, all out-of-pocket costs and expenses with respect to the
transactions contemplated in this Agreement shall be borne by the party incurring such costs and expenses. 
 Section 5.4 Records. Each party shall have
access to all records, documents and other information in the possession of the other party relating to activities prior to the 

  

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Separation and such records shall be subject to the confidentiality provisions of Section 11.4 of the Separation Agreement. Upon the request of the
party seeking such access, the other party shall make any such records, documents and other information available or make copies for the requesting party without charge. 
 Section 5.5 Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of Delaware, without reference to choice of law principles, including matters of construction, validity
and performance. 
 Section 5.6 Notices. Notices, requests, permissions, waivers, referrals and all other communications hereunder shall be in writing
and shall be deemed to have been duly given if signed by the respective persons giving them (in the case of any corporation or limited liability company, the signature shall be by an officer thereof) and delivered by hand or by telecopy or on the
date of receipt indicated on the return receipt if mailed (registered or certified, return receipt requested, properly addressed and postage prepaid). 
 If to SteelCo, to: 
 United States Steel LLC 
 600 Grant Street 
 Suite 6100 
 Pittsburgh, PA 15219-4776 
 Attention: General Counsel 
 Facsimile: 412-433-1131 
 If to USX, to:

 Marathon Oil Corporation 
 5555 San Felipe Road 
 Houston, TX 77056-2723 
 Attention: General Counsel 
 Facsimile: 713-296-4375 
 Such names and addresses may be changed by notice given in accordance with this Section 5.6. Copies of all notices, requests, permissions, waivers, referrals and
all other communications hereunder given prior to the Separation Effective Time shall be given to: 
 Skadden, Arps, Slate, Meagher & Flom LLP 4
Times Square New York, NY 10036-6522 Attention: Roger S. Aaron, Esquire Facsimile: (212) 735-2000 
 Section 5.7 Third-Party Beneficiaries. Except
as provided in Section 5.2 hereof with respect to indemnification of U. S. Steel Indemnified Parties and USX Indemnified Parties hereunder, nothing in this Agreement shall confer any rights upon any Person or entity other than the parties
hereto and their respective heirs, successors and permitted assigns. 
 Section 5.8 Entire Agreement. This Agreement contains the entire understanding
of the parties hereto with respect to the subject matter contained herein, and supersedes and 

  

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cancels all prior agreements, negotiations, correspondence, undertakings and communications of the parties, oral or written, respecting such subject matter.

 Section 5.9 Headings. The article, section and paragraph headings contained in this Agreement are for reference purposes only and shall not affect in
any way the meaning or interpretation of this Agreement. All references herein to “Articles” or “Sections” shall be deemed to be references to Articles or Sections hereof unless otherwise indicated. 
 Section 5.10 Counterparts. This Agreement may be executed in one or more counterparts and each counterpart shall be deemed to be an original, but all of which shall
constitute one and the same original. 
 Section 5.11 Parties in Interest; Assignment; Successors. Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties hereto without the prior written consent of the other party. Subject to the preceding sentence, this Agreement shall inure to the benefit of and be binding upon SteelCo and
USX and their respective successors and permitted assigns. Nothing in this Agreement, express or implied, is intended to confer upon any other Person any rights or remedies under or by reason of this Agreement. 
 Section 5.12 Severability; Enforcement. The invalidity of any portion hereof shall not affect the validity, force or effect of the remaining portions hereof. If it
is ever held that any restriction hereunder is too broad to permit enforcement of such restriction to its fullest extent, each party agrees that a court of competent jurisdiction may enforce such restriction to the maximum extent permitted by law,
and each party hereby consents and agrees that such scope may be judicially modified accordingly in any proceeding brought to enforce such restriction. 
 Section 5.13 Remedies. The parties agree that money damages or other remedy at law would not be a sufficient or adequate remedy for any breach or violation of, or a default under, this Agreement by them and that in addition to all
other remedies available to them, each of them shall be entitled to the fullest extent permitted by law to an injunction restraining such breach, violation or default or threatened breach, violation or default and to any other equitable relief,
including specific performance, without bond or other security being required. 
  

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 IN WITNESS WHEREOF, each of the parties has caused this Agreement to be duly executed on its behalf by
its officers thereunto duly authorized, all as of the day and year first above written. 
  

			
	USX CORPORATION
		
	By:	 	/s/ K. L. Matheny
	Name:	 	K. L. Matheny
	Title:	 	Vice President – Investor Relations

  

			
	UNITED STATES STEEL LLC
		
	By:	 	/s/ G. R. Haggerty
	Name:	 	G. R. Haggerty
	Title:	 	Vice President – Accounting & Finance

  

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