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Transocean inc.,

as Issuer,

EACH OF THE GUARANTORS PARTY HERETO

and

TRUIST BANK,

as Trustee and as Collateral Agent

___________________

INDENTURE

Dated as of January 31, 2023

___________________

8.75% Senior Secured Notes due 2030

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APPENDICES

Appendix A

Exhibit 1.1 to Appendix A – Form of Security

Appendix B – Form of Certificate of Transfer

Appendix C – Form of Certificate of Exchange

Appendix D – Form of Supplemental Indenture

Appendix E – Form of Withdrawal Certificate

ANNEXES

Annex I – Representations and Warranties of the Applicable Collateral Rig Owner and Collateral Rig Operator

Annex II – Secured Limited Guarantee Caps

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INDENTURE dated as of January 31, 2023, among Transocean Inc., a Cayman Islands exempted company (the “Company”), the Guarantors (as defined herein), and Truist Bank, as trustee (the “Trustee”) and as Collateral Agent.

RECITALS

The Company has duly authorized the issuance of $1,175,000,000 aggregate principal amount of 8.75% Senior Secured Notes due 2030, and to provide therefor the Company has duly authorized the execution and delivery of this Indenture.

All things necessary to make the Securities (as defined below), when executed by the Company, authenticated and delivered hereunder and duly issued by the Company, the valid and binding obligations of the Company, and to make this Indenture a valid and legally binding agreement of the Company and the Guarantors, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

For and in consideration of the premises and the purchase of the Securities by the Holders thereof, it is mutually covenanted and agreed, for the benefit of each other and the equal and proportionate benefit of all Holders of the Securities, as follows:

“2025 Notes Indenture” means the Indenture dated as of October 25, 2018, by and among Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all notes issued pursuant to the provisions thereof.

“2025 Senior Guaranteed Exchangeable Bonds Indenture” means the Indenture dated as of February 26, 2021, by and among the Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all bonds issued pursuant to the provisions thereof.

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“2026 Notes Indenture” means the Indenture dated as of October 17, 2017, by and among Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all notes issued pursuant to the provisions thereof.

“2027 Notes Indenture” means the Indenture dated as of January 17, 2020, by and among Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all notes issued pursuant to the provisions thereof.

“2027 Senior Guaranteed Exchangeable Bonds Indenture” means the Indenture dated as of August 14, 2020, by and among the Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all bonds issued pursuant to the provisions thereof.

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“2027 Senior Guaranteed Notes Indenture” means the Indenture dated as of September 11, 2020, by and among the Company, the Guarantors (as defined therein) and Wells Fargo Bank, National Association, as trustee, with all supplemental indentures, amendments and modifications thereto, and all notes issued pursuant to the provisions thereof.

“2029 Guaranteed Exchangeable Bonds Indenture” means the Indenture dated as of September 30, 2022, by and among the Company, the Guarantors (as defined therein) and Truist Bank, as trustee, with all supplemental indentures, amendments and modifications thereto, and all bonds issued pursuant to the provisions thereof.

“Acceptable Classification Society” shall mean DNV GL, Lloyds Register, American Bureau of Shipping (ABS) and Bureau Veritas or such other first class vessel classification society that is a member of the International Association of Classification Societies.

“Acceptable Flag Jurisdiction” means Norway, the Republic of the Marshall Islands, the Republic of Liberia, the Republic of Vanuatu, the Bahamas, Panama, Malta, Denmark and Switzerland.

“Account and Receivables Pledge Agreement” means each account and receivables pledge agreement pursuant to which a Collateral Rig Owner grants a security interest to the Collateral Agent in, to the extent applicable, (a) the applicable Bareboat Account, (b) all receivables owing to the Collateral Rig Owner under the Bareboat Charter or due from the Collateral Rig Operator and (c) all intercompany receivables owing to such Collateral Rig Owner, forms of which are to be executed on or about the Issue Date, with such changes to such forms as are necessary or advisable to account for local law requirements or the granting of security interests in (a) and (b) only, (c) only or (a) – (c) inclusive (as applicable) in the same document.

“Account Pledge Agreement” means each account pledge agreement, pursuant to which a Collateral Rig Operator grants a security interest to the Collateral Agent in the Earnings Account, a form of which is to be executed on or about the Issue Date, with such changes to such form as are necessary or advisable to account for local law requirements.

“Affiliate” means, with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries, Controls or is Controlled by or is under common Control with the Person.

“Aggregate Collateral Rig Leverage Ratio” means, as of any date of determination, the ratio of (a) an amount equal to (i) the aggregate outstanding principal amount of the Securities as of such date of determination less (ii) the balance of the Debt Service Reserve Account as of such date of determination, to (b) Collateral Rig Net Income for the most recently ended four full consecutive fiscal quarters ended on or immediately prior to such date of determination.

“Aggregate Debt” means the sum of the following as of the date of determination: (1) the then outstanding aggregate principal amount of the Indebtedness of the Company and its Subsidiaries secured by liens not permitted by clauses (1) through (10) of Section 4.04(c); (2) the then outstanding aggregate principal amount of all Indebtedness of the Subsidiaries of the Company not permitted by clauses (1) through (11) or (13) of Section 4.06(a) without double counting in this clause (2) to the extent that such Indebtedness is included in clause (1) or (3) of this definition; and (3) the then existing Attributable Liens of the Company and its Subsidiaries in respect of sale and lease-back transactions without double counting to the extent that the Indebtedness relating thereto is included in clause (1) or (2) of this definition.

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“Anti-Corruption Laws” means all laws, rules and regulations of any jurisdiction applicable to Holdings, the Company and other Note Parties from time to time concerning or relating to bribery, money laundering, or corruption, including, without limitation, the United States Foreign Corrupt Practices Act of 1977 (the “FCPA”), as amended from time to time, and the United Kingdom’s Bribery Act 2010, as amended from time to time.

“Applicable Procedures” means, with respect to any transfer, redemption or exchange of or for beneficial interests in any Global Security, the rules and procedures of the Depositary that apply to such transfer, redemption or exchange.

“Attributable Liens” means in connection with a sale and lease-back transaction the lesser of: (1) the fair market value of the assets subject to such transaction, as determined in good faith by the board of directors of Holdings; and (2) the present value (discounted at the rate of interest implicit in such transaction) of the obligations of the lessee for rental payments during the shorter of the term of the related lease or the period through the first date on which the lessee may terminate the lease or, if such sale and lease-back transaction results in a Capital Lease, the outstanding amount of such Capital Lease as determined in accordance with GAAP.

“Bankruptcy Law” means Title 11 of the United States Code or any similar federal, state or foreign law for the relief of debtors.

“Bareboat Account” means the deposit account or accounts of each Collateral Rig Owner designated as such from time to time by such Collateral Rig Owner in the applicable Account and Receivables Pledge Agreement into which all earnings, hires, freights, income and other sums payable to such Collateral Rig Owner in respect of the applicable Collateral Rig under the applicable Bareboat Charter or otherwise derived from the applicable Bareboat Charter, are deposited. As of the Issue Date, Thalassa OwnCo is both the Collateral Rig Operator and the Collateral Rig Owner, and as such, there is no Bareboat Account for the “DEEPWATER THALASSA” as of the Issue Date. As of the Issue Date, Proteus OwnCo and Pontus OwnCo are each both the Collateral Rig Operator and the Collateral Rig Owner, and as such, there are no Bareboat Accounts for the “DEEPWATER PROTEUS” or the “DEEPWATER PONTUS” as of the Issue Date.

“Bareboat Charter” means each bareboat charterparty between a Collateral Rig Operator and a Collateral Rig Owner entered into from time to time, which shall provide that the rights of such Collateral Rig Operator in and to the applicable Collateral Rig and the other Collateral shall be subordinated to the Lien of the Collateral Agent for the benefit of the Secured Creditors. As of the Issue Date, Thalassa OwnCo is both the Collateral Rig Operator and the Collateral Rig Owner, and as such, there is no BareboatCharter for the “DEEPWATER THALASSA” as of the Issue Date.  As of the Issue Date, Proteus OwnCo and Pontus OwnCo are each both the Collateral Rig Operator and the Collateral Rig Owner, and as such, there is no Bareboat Charter for the “DEEPWATER PROTEUS” or the “DEEPWATER PONTUS” as of the Issue Date.

“Business Day” means each day which is not a Legal Holiday.

“Capital Lease” means any lease obligation of a Person Incurred with respect to real property or equipment acquired or leased by such Person and used in its business that is required to be recorded as a capital lease in accordance with GAAP.

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Notwithstanding the foregoing and for the avoidance of doubt, (i) any holding company whose principal asset is capital stock of the Company or any of the Company’s direct or indirect Parent Companies shall not itself be considered a “person” or “group” for purposes of clauses (2) or (3) above; (ii) the sale, lease, transfer, conveyance or other disposition of assets solely between or among Holdings and its Subsidiaries in accordance with the terms of the Indenture shall not constitute a Change of Control; (iii) the term “Change of Control” shall not include the consummation of any transaction (including, without limitation, any merger, amalgamation or statutory scheme of arrangement or consolidation or the sale, lease, transfer, conveyance or other disposition of all or substantially all of the Company’s assets) for the purpose of reincorporating or redomesticating or reorganizing the Company or Holdings in another jurisdiction and/or for the purpose of forming or collapsing a holding company structure; and (iv) a transaction in which the Company or any direct or indirect parent of the Company becomes a Subsidiary of another Person (other than a Person that is an individual, such Person that is not an individual, the “New Parent”) shall not constitute a Change of Control if the shareholders of the Company or such parent immediately prior to such transaction “beneficially own” (as such term is defined in Rule 13d-3 and Rule 13d-5 under the Exchange Act), directly or indirectly, Voting Stock representing more than 50% of the combined voting power of the New Parent immediately after giving effect to such transaction.

“Change of Control Payment” means, with respect to Securities tendered pursuant to a Change of Control Offer, an amount equal to 101% of the aggregate principal amount of the Securities repurchased plus accrued and unpaid interest thereon, if any, to, but not including the date of repurchase.

“Change of Control Repurchase Event” means on any date during the 60-day period (which period shall be extended so long as the rating of the Securities is under publicly announced consideration for a

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possible downgrade by any of the Rating Agencies) (the “trigger period”) after the earlier of (1) the occurrence of a Change of Control; or (2) public notice of the occurrence of a Change of Control or the intention by the Company to effect a Change of Control, (i) in the event the Securities are rated Investment Grade by at least two of the Rating Agencies prior to such public notice, the rating of the Securities by any Rating Agency shall be below Investment Grade, (ii) in the event the Securities are rated below Investment Grade by at least two of the Rating Agencies prior to such public notice, the rating of the Securities by any Rating Agency shall be decreased by one or more categories or (iii) the Securities shall not be, or cease to be, rated by at least one of the Rating Agencies; provided that, in each case, such event is in whole or in part in connection with the Change of Control.  Notwithstanding the foregoing, no Change of Control Repurchase Event will be deemed to have occurred in connection with any particular Change of Control unless and until such Change of Control has actually been consummated.

“Code” means the Internal Revenue Code of 1986, as amended.

“Collateral” means all property (whether real or personal) with respect to which any security interests have been granted (or purported to be granted) pursuant to any Security Document until the Lien on such property has been released or terminated in accordance with this Indenture or the applicable Security Document.  For purposes of this Indenture, as of the Issue Date, each Secured Limited Guarantee will be secured by the same Collateral (as defined in the applicable indenture governing such Collateral Rig Family’s Existing Secured Notes) securing the Existing Secured Notes of the applicable Collateral Rig Family, including liens on any drilling rig, charter agreement, equity of entities owning and/or operating such drilling rigs, earnings, receivables, insurances and insurance proceeds, intercompany receivables and accounts related thereto, and with respect to the Limited Guarantors, up to the Secured Limited Guarantee Cap of such Collateral Rig Family’s Existing Secured Notes.

“Collateral Agent” means Truist Bank, acting in its capacity as Collateral Agent for the Secured Creditors, and any successor Collateral Agent appointed hereunder pursuant to Section 12.06.

“Collateral and Guaranty Requirements” means, subject to any applicable Secured Limited Guarantee Cap, the requirement that:

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“Collateral Grantor” means (x) initially, (i) with respect to “Thalassa,” Triton Capital II GmbH (“Thalassa OwnCo”) and Triton Nautilus Asset Management LLC (“TNAM”), (ii) with respect to “Proteus,” Triton Capital I GmbH (“Proteus OwnCo”) and TNAM, (iii) with respect to “Guardian,” Transocean Enabler Limited (“Enabler OwnCo”), Transocean Encourage Limited (“Encourage OwnCo”), Transocean Guardian Limited (“Guardian Limited”), Songa Offshore SE (“SOSE”) and Songa Offshore Rig 3 AS (“Guardian OpCo”) and (iv) with respect to “Pontus,” Triton Gemini GmbH (“Pontus OwnCo”) and TNAM and (y) the Equity Pledgors, the Collateral Rig Owners, the Collateral Rig Operators and each other Subsidiary of Holdings that becomes a party to a Security Document in connection with a Fundamental Change (as permitted in accordance with Section 4.13) of an Equity Pledgor, a Collateral Rig Owner or a Collateral Rig Operator or a Flag Jurisdiction Transfer.

“Collateral Rig” means, at any time, as applicable, (i) with respect to “Thalassa”, the ultra-deepwater drillship “DEEPWATER THALASSA”, (ii) with respect to “Proteus”, the ultra-deepwater drillship “DEEPWATER PROTEUS”, (iii) with respect to “Guardian”, (a) the harsh environment semi-submersible drilling rig “TRANSOCEAN ENABLER” and (b) the harsh environment semi-submersible drilling rig “TRANSOCEAN ENCOURAGE” and (iv) with respect to “Pontus”, the ultra-deepwater drillship “DEEPWATER PONTUS”.

“Collateral Rig Family” means each Collateral Rig Guarantor and each Collateral Grantor securing the related Secured Limited Guarantees within such Collateral Rig Family, consisting of (i) with respect to “Thalassa,” the Thalassa Collateral Rig Guarantor Family and TNAM, which is a Collateral Grantor but not a Guarantor, (ii) with respect to “Proteus,” the Proteus Collateral Rig Guarantor Family and TNAM, which is a Collateral Grantor but not a Guarantor, (iii) with respect to “Guardian,” the Guardian Collateral Rig Guarantor Family and Guardian OpCo and SOSE, which are Collateral Grantors but not Guarantors, and (iv) with respect to “Pontus,” the Pontus Collateral Rig Guarantor Family and TNAM, which is a Collateral Grantor but not a Guarantor.

“Collateral Rig Guarantor Family” means the Guarantors of the Securities within each Collateral Rig Family, consisting of (i) with respect to “Thalassa,” Transocean Phoenix 2 Limited (“Thalassa Limited”) and Thalassa OwnCo, (ii) with respect to “Proteus,” Transocean Proteus Limited (“Proteus Limited”) and Proteus OwnCo, (iii) with respect to “Guardian,” Guardian Limited, Enabler OwnCo and Encourage OwnCo and (iv) with respect to “Pontus,” Transocean Pontus Limited (“Pontus Limited”) and Pontus OwnCo.

“Collateral Rig Mortgage” means a first preferred or priority mortgage, as the case may be, and deed of covenants, if applicable, a form of which is to be executed on or about the Issue Date, with such changes to such form as are necessary or advisable to account for local law requirements and as such mortgage (and deed of covenants, as applicable) may be amended, modified or supplemented from time to

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time in accordance with the terms hereof and thereof, in each case granted by a Collateral Rig Owner in favor of the Collateral Agent, as security trustee and/or as mortgagee.

“Collateral Rig Net Income” means, for any period, an amount equal to:

For the avoidance of doubt, references in this definition to any Collateral Rig Owner or Collateral Rig Operator shall include their respective predecessors that are Subsidiaries of Holdings and owned and/or operated a Collateral Rig.

“Collateral Rig Operator” means, initially, (i) with respect to “Thalassa”, Thalassa OwnCo, (ii) with respect to the “Proteus”, Proteus OwnCo, (iii) with respect to “Guardian”, Guardian OpCo and (iv) with respect to “Pontus”, Pontus OwnCo and in each case, thereafter, individually or collectively (as the context may require), one or more Subsidiaries of Holdings that become an operator of a Collateral Rig in accordance with Section 4.26 and to whom Earnings are paid.  For the avoidance of doubt, at any time (a) a Collateral Rig Operator may also be a Collateral Rig Owner, provided that the applicable Collateral and Guarantee Requirements are satisfied; and (b) there may be more than one Collateral Rig Operator with respect to a Collateral Rig, provided that the applicable Collateral and Guarantee Requirements are satisfied with respect to each such Collateral Rig Operator. At any time there is more than one Collateral Rig Operator for any Collateral Rig, any reference herein to (i) the Collateral Rig Operator for any particular Collateral Rig shall be a reference to each Collateral Rig Operator with respect to such Collateral Rig and (ii) the Collateral Rig Operator without a reference to any particular Collateral Rig shall be a reference to each Collateral Rig Operator. As of the Issue Date, Thalassa OwnCo is both the Collateral Rig Operator and the Collateral Rig Owner for the “DEEPWATER THALASSA” and Proteus OwnCo and Pontus OwnCo are each both the Collateral Rig Operator and the Collateral Rig Owner for the “DEEPWATER PROTEUS” or the “DEEPWATER PONTUS” (as applicable).

“Collateral Rig Owner” means, initially, (i) with respect to “Thalassa”, Thalassa OwnCo, (ii) with respect to “Proteus”, Proteus OwnCo, (iii) with respect to “Guardian”, Enabler OwnCo and Encourage

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OwnCo and (iv) with respect to “Pontus”, Pontus OwnCo, and thereafter any other Subsidiary of Holdings that acquires ownership of a Collateral Rig in accordance with Section 4.26.  For the avoidance of doubt, a Collateral Rig Owner may also be a Collateral Rig Operator, provided that the applicable Collateral and Guarantee Requirements are satisfied. As of the Issue Date, Thalassa OwnCo is both the Collateral Rig Operator and Collateral Rig Owner for the “DEEPWATER THALASSA” and Proteus OwnCo and Pontus OwnCo are each both the Collateral Rig Operator and the Collateral Rig Owner for the “DEEPWATER PROTEUS” or the “DEEPWATER PONTUS” (as applicable).

“Company” means the party named as such in this Indenture until a successor replaces it and, thereafter, means the successor.

“Consolidated Affiliates” means those Affiliates of Holdings that are not Subsidiaries of Holdings, but are variable interest entities whose accounts are consolidated with those of Holdings under GAAP.

“Consolidated Group” means, collectively, Holdings and its Subsidiaries and Consolidated Affiliates.  Each Person that is Holdings or a Subsidiary or Consolidated Affiliate thereof included in the Consolidated Group at any time is referred to herein as a “Member of the Consolidated Group.”

“Consolidated Net Tangible Assets” means the total amount of Holdings’ assets (less reserves and other properly deductible items) after deducting current liabilities (other than those that are extendable at Holdings’ option to a date more than 12 months after the date the amount is determined), goodwill and other intangible assets shown in Holdings’ most recent consolidated balance sheet prepared in accordance with GAAP.

“Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of a Person, whether through the ability to exercise voting power, by contract or otherwise.  “Controlling” and “Controlled” have meanings correlative thereto.

“Credit Facilities” means one or more debt facilities, including the Revolving Credit Facility, or other financing arrangements (including, without limitation, commercial paper facilities or indentures) providing for revolving credit loans, term loans, letters of credit or other long-term indebtedness, including any notes, mortgages, guarantees, collateral documents, instruments and agreements executed in connection therewith, and any amendments, supplements, modifications, extensions, renewals, restatements or refundings thereof and any indentures or credit facilities or commercial paper facilities that replace, refund or refinance any part of the loans, notes, other credit facilities or commitments thereunder, including any such replacement, refunding or refinancing facility or indenture that increases the amount permitted to be borrowed thereunder or alters the maturity thereof (provided that such increase in borrowings is permitted under Section 4.06) or adds Subsidiaries as additional borrowers or guarantors thereunder and whether by the same or any other agent, lender or group of lenders.

“Currency Rate Protection Agreement” means any foreign currency exchange and future agreements, arrangements and options designed to protect against fluctuations in currency exchange rates.

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“Debt Service Reserve” means, as of any date of determination (i) prior to June 30, 2024, an amount equal to $100.0 million, (ii) from July 1, 2024 to December 31, 2024, an amount equal to $137.5 million, (iii) from January 1, 2025 to March 31, 2025, an amount equal to $175.0 million, (iv) from April 1, 2025 to June 30, 2025, an amount equal to $187.5 million, (v) from July 1, 2025 to September 30, 2025, an amount equal to $200.0 million, (vi) from October 1, 2025 to December 31, 2025, an amount equal to $212.5 million, and (iv) thereafter, an amount equal to $225 million; provided that if the Net Debt to Collateral Rig Amount is less than or equal to $100 million as of such date of determination, the Debt Service Reserve amount may be reduced to an amount that (after giving effect to any such reduction and release of funds from the Debt Service Reserve Account as of such date) does not result in the Net Debt to Collateral Rig Amount exceeding $100 million, subject to a minimum Debt Service Reserve equal to the amount of scheduled principal and interest due on the Securities in the six-month period following such date.

“Debt Service Reserve Account” means an account established in the name of the Trustee and maintained for purpose of holding the Debt Service Reserve and any other amounts deposited therein pursuant to any Note Document or at the option of any Note Party, in each case in accordance with the terms of Section 7.10.  

“Deed of Quiet Enjoyment” means, (a) with respect to any Drilling Contract in effect as of the Issue Date, a letter of undertaking or the deed of quiet enjoyment by and among a Collateral Rig Operator, the counterparty under a Drilling Contract and the Collateral Agent, a form of which is to be executed on or about the Issue Date, with such changes to such form as are necessary or advisable to account for local law requirements or that are required by the counterparty under a Drilling Contract and (b) with respect to any other Drilling Contract with respect to a Collateral Rig, a letter of undertaking or the deed of quiet enjoyment by and among the related Collateral Rig Operator, the counterparty under such Drilling Contract and the Collateral Agent, as required by the counterparty under such Drilling Contract.

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default.

“Definitive Security” means a certificated Security registered in the name of the Holder thereof and issued in accordance with Section 2.3 to Appendix A of this Indenture, in substantially the form of a Global Security hereto except that such Security shall not bear the Global Security Legend and shall not have the “Schedule of Exchanges of Interests in the Global Security” attached thereto.

“Depositary” means, with respect to the Securities issuable or issued in whole or in part in global form, the Person specified in Section 2.03 as the Depositary with respect to the Securities, and any and all successors thereto appointed as depositary hereunder and having become such pursuant to the applicable provisions of this Indenture.

“Drilling Contract” means, at any time, with respect to any Collateral Rig, any contractual arrangement for the hiring and chartering of such Collateral Rig, in each case as amended, restated or modified from time to time, in each case that would not reasonably be expected to have a Material Adverse Effect.

“Earnings” means (i) all freight, hire, income and passage moneys payable to a Collateral Rig Operator as a consequence of the operation of a Collateral Rig, including without limitation all payments under any Drilling Contract, including any termination payments or settlement payments in respect thereof, (ii) any claim under any guarantee in respect of any Drilling Contract or otherwise related to freight, hire, income or passage moneys, in each case payable to a Collateral Rig Operator as a consequence of the operation of a Collateral Rig, (iii) any other money whatsoever due or to become due to a Collateral Rig

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Operator in relation to any Drilling Contract and (iv) any other money received directly or indirectly under a Drilling Contract by any Collateral Rig Operator.

“Earnings Account” means, individually or collectively, as the context may require, the deposit account or accounts of a Collateral Rig Operator designated as such from time to time by such Collateral Rig Operator in the applicable Account Pledge Agreement into which all Earnings derived from the applicable Drilling Contract related to such Collateral Rig Operator are deposited.

“Environmental Law” means any federal, state or local statute, law, rule, regulation, ordinance, code, policy or rule of common law now or hereafter in effect, including any judicial or administrative order, consent, decree or judgment, relating to pollution or protection of the environment, health, safety or natural resources, in each case, relating to the use, handling, transportation, treatment, storage, disposal, release or discharge of any Hazardous Materials.

“Equity Interests” of any Person means any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including any preferred stock, any limited or general partnership interest and any limited liability company membership interest, but excluding any debt security that is convertible into, or exchangeable for, such interests in equity.

“Equity Pledgor” means, initially, each of (i) in the case of “Thalassa”, TNAM, (ii) in the case of “Proteus”, TNAM, (iii) in the case of “Guardian”, SOSE and Guardian Limited and (iv) in the case of “Pontus”, TNAM, in each case so long as they directly own the Equity Interests of a Collateral Rig Owner or a Collateral Rig Operator, and, at any other time, any other Subsidiary of Holdings that directly owns the Equity Interests of a Collateral Rig Owner and/or the Collateral Rig Operator (other than any Equity Interests of a Collateral Rig Operator owned by a Qualified Local Partner, if applicable at such time).

“Event of Loss” means any of the following events with respect to any Collateral Rig: (x) the actual or constructive total loss of such Collateral Rig or the agreed or compromised total loss of such Collateral Rig; or (y) the capture, condemnation, confiscation, requisition for title and not hire, purchase, seizure or forfeiture of, or any taking of title to, such Collateral Rig. An Event of Loss shall be deemed to have occurred with respect to a Collateral Rig: (i) in the event of an actual loss of such Collateral Rig, at the time and on the date of such loss or if that information is not known, at noon Greenwich Mean Time on the date which such Collateral Rig was last heard from; (ii) in the event of damage which results in the constructive or compromised or arranged total loss of such Collateral Rig, at the time and on the date on which notice claiming the loss of such Collateral Rig is given to the insurers; or (iii) in the case of an event referred to in clause (y) above, at the time and on the date on which such event is expressed to take effect by the Person making the same. Notwithstanding the foregoing, if a Collateral Rig shall have been returned to any Note Party following any event referred to in clause (y) above prior to the date upon which the Company is required to make an Event of Loss Offer under Section 4.02(c), no Event of Loss shall be deemed to have occurred by reason of such event.

“Event of Loss Repurchase Event” means, in connection with any Event of Loss, the day the full amount of the insurance proceeds in connection with such Event of Loss are received by any Note Party or other Subsidiary of Holdings.

“Event of Loss Principal Amount” means, in connection with an Event of Loss Repurchase Event following an Event of Loss, an amount equal to the lesser of (i) the insurance proceeds received in connection with such Event of Loss and (ii) an aggregate principal amount of Securities necessary to reduce the Net Debt to Collateral Rig Amount to $100 million; provided, however, that if the Net Debt to Collateral Rig Amount is less than or equal to $100 million, the Event of Loss Principal Amount shall be the lesser of

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(x) the amount of insurance proceeds received in connection with such Event of Loss and (y) the Secured Limited Guarantee Cap for the applicable Collateral Rig Guarantor Family.

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended.

“Existing Collateral Rig Issuers” means Thalassa Limited, Proteus Limited, Guardian Limited and Pontus Limited.

“Existing Secured Notes” means (i) with respect to “Thalassa”, the 7.75% Senior Secured Notes due 2024, (ii) with respect to “Proteus”, the 6.25% Senior Secured Notes due 2024, (iii) with respect to “Guardian”, the 5.875% Senior Secured Notes due 2024 and (iv) with respect to “Pontus”, the 6.125% Senior Secured Notes due 2025.

“Existing Unsecured Notes Subsidiary Guarantor” means any Senior Guaranteed Notes Subsidiary Guarantor and any Legacy Unsecured Notes Subsidiary Guarantor.

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“Fitch” means Fitch Ratings Ltd. or any successor to the rating agency business thereof.

“Flag Jurisdiction Transfer” means the transfer of the registration and flag of a Collateral Rig from one Acceptable Flag Jurisdiction to another Acceptable Flag Jurisdiction, provided that the following conditions are satisfied with respect to such transfer:

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“Flag Jurisdiction Transfer Date” shall mean the date on which a Flag Jurisdiction Transfer occurs.

“Fleet Status Report” means the Fleet Status Report issued by Holdings, which includes drilling contract information, drilling status and planned out-of-service time for every Rig in the fleet of Holdings.

“Funded Debt” means Indebtedness Incurred by a Subsidiary of the Company owning Rigs maturing by its terms more than one year after its creation which indebtedness is classified as long term debt under GAAP.

“GAAP” means generally accepted accounting principles in the United States set forth in the statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect as of the date of determination.

“Global Security Legend” means the legend set forth in Section 2.3(e)(3) of Appendix A to this Indenture, which is required to be placed on all Global Securities issued under this Indenture.

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provided, however, that the term “Guarantee” shall not include endorsements for collection or deposit in the ordinary course of business.  The term “Guarantee” used as a verb has a corresponding meaning.

“Guarantors” means, collectively, Holdings and the Limited Guarantors, in each case, together with their respective successors and assigns until the Securities Guarantee of such Person has been released in accordance with the provisions of this Indenture.

“Hazardous Material” has the meaning ascribed to such term in the Comprehensive Environmental Response Compensation and Liability Act of 1980, as amended by the Superfund Amendments and Reauthorization Acts of 1986, and shall also include petroleum, including crude oil or any fraction thereof, petroleum distillates, asbestos and asbestos containing materials, polychlorinated biphenyls or any other substance defined as “hazardous” or “toxic” or words with similar meaning and effect under any Environmental Law applicable to the Company, the Collateral Rig Owners or the Collateral Rig Operators.

“Holder” means the Person in whose name a Security is registered on the Registrar’s books.

“Holdings” means Transocean Ltd., a Swiss corporation (Aktiengesellschaft) with its registered office at Turmstrasse 30, 6312 in Steinhausen, Canton of Zug, Switzerland and the direct sole shareholder of the Company as of the Issue Date.

“Incur” means issue, assume, Guarantee, incur or otherwise become liable for.  The term “Incurrence” when used as a noun shall have a correlative meaning.

“Indebtedness” means all obligations for borrowed money represented by notes, bonds, debentures or similar evidence of indebtedness and obligations for borrowed money evidenced by credit, loan or other like agreements.

“Indenture” means this Indenture as amended, supplemented or otherwise modified from time to time.

“Indirect Participant” means a Person who holds a beneficial interest in a Global Security through a Participant.

“Interest Rate Protection Agreement” means any interest rate swap, interest rate cap, interest rate collar, or other interest rate hedging agreement or arrangement designed to protect against fluctuations in interest rates.

“Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent under any successor rating categories of Moody’s); a rating of BBB- or better by S&P (or its equivalent under any successor rating categories of S&P); and a rating of BBB- or better by Fitch (or its equivalent under any successor rating categories of Fitch).

“Issue Date” means January 31, 2023.

“Legacy Unsecured Notes Subsidiary Guarantor” means a “Subsidiary Guarantor” as defined in the 2025 Notes Indenture, the 2026 Notes Indenture, the 2027 Notes Indenture or the 2029 Guaranteed Exchangeable Bonds Indenture.

“Legal Holiday” means a Saturday, Sunday or other day on which banking institutions are not required by law or regulation to be open in the State of New York.

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“Lien” means any mortgage, pledge, lien, encumbrance, charge or security interest.

“Limited Guarantors” means (i) Thalassa Collateral Rig Guarantor Family, (ii) Proteus Collateral Rig Guarantor Family, (iii) Guardian Collateral Rig Guarantor Family and (iv) Pontus Collateral Rig Guarantor Family, in each case, together with their respective successors and assigns until the Securities Guarantee of such Person has been released in accordance with the provisions of this Indenture.

“Make-Whole Premium” shall mean, with respect to any Securities on any applicable date of repayment following acceleration of the Securities or redemption on or prior to February 15, 2026, the greater of:

The present value shall be calculated using a discount rate equal to the Treasury Rate plus 50 basis points.  The Make-Whole Premium will be calculated by the Company in accordance with the formula set forth above.

“Master Services Agreement” means that certain Master Services Agreement, effective as of January 1, 2008, by and among Transocean Offshore Deepwater Drilling Inc., GlobalSantaFe Corporate Services Inc., the Company and certain Affiliates (as defined therein) of Transocean Offshore Deepwater Drilling Inc. party thereto from time to time, as amended.

“Material Adverse Effect” means a material adverse effect on (i) the business, assets, financial condition or results of operations of the Company, Holdings and other Members of the Consolidated Group, taken as a whole, (ii) the Company’s, Holdings’ or any Collateral Rig Family’s ability to perform any of its respective payment obligations under this Indenture or the other Note Documents, or (iii) the rights and remedies of the Trustee, the Collateral Agent and/or the Holders under this Indenture and the other Note Documents.

“Maturity”, when used with respect to any Security, means the date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, automatic acceleration in accordance with Section 6.02 hereof, notice of redemption, exercise of a Holder’s option to require the Company to purchase or repay the Security, or otherwise.

“Maturity Date” means February 15, 2030.

“Moody’s” means Moody’s Investors Service, Inc. or any successor to the rating agency business thereof.

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“Net Debt to Collateral Rig Amount” means, as of any date of determination, an amount equal to (a) (i) the aggregate outstanding principal amount of the Securities as of such date of determination less (ii) the balance of the Debt Service Reserve Account as of such date of determination, divided by (b) the number of Collateral Rigs as of such date.

“Non-Recourse Debt” means (i) any Indebtedness Incurred by any Project Financing Subsidiary to finance the acquisition, improvement, design, engineering, construction, development, completion, maintenance or operation of, or otherwise to pay costs and expenses relating to or Incurred in connection with the foregoing for, any Rig, which Indebtedness does not provide for recourse against Holdings, the Company or any other Member of the Consolidated Group (other than to such Project Financing Subsidiary with respect to customary non-recourse exceptions, and such recourse as exists under a Performance Guarantee given for the benefit of such Project Financing Subsidiary) or any property or asset of Holdings, the Company or any other Member of the Consolidated Group (other than equity interests of, and such Rig and related assets of, such Project Financing Subsidiary, and such recourse as exists under a Performance Guarantee given for the benefit of such Project Financing Subsidiary) and (ii) any Refinancing of such Indebtedness that does not increase the outstanding principal amount thereof (other than to pay costs Incurred in connection therewith and the capitalization of any interest, fees or premium) at the time of the Refinancing, increase the property subject to any Lien securing such Indebtedness, or provide for recourse against any other Member of the Consolidated Group.

“Note Documents” means this Indenture, the Securities, the Securities Guarantees, each Deed of Quiet Enjoyment and each Security Document, in each case, as amended, modified, renewed, restated or replaced, in whole or in part, from time to time.

“Note Party” means each of (i) the Company, (ii) Holdings, (iii) each Collateral Grantor and (iv) each Guarantor.

“Notes Obligations” means all advances to, and debts, liabilities, obligations, covenants and duties of, the Company or any other Note Party arising under this Indenture, the Securities, the Securities Guarantees and the Security Documents (including all principal, premium (including the Make-Whole Premium), interest, penalties, fees, charges, expenses, indemnifications, reimbursement obligations, damages, guarantees, and other liabilities or amounts payable or arising thereunder), whether direct or indirect (including those acquired by assumption), absolute or contingent, due or to become due, now existing or hereafter arising and including interest and fees that accrue after the commencement by or against the Company or any other Note Party of any proceeding in bankruptcy or insolvency law naming such Person as the debtor in such proceeding, regardless of whether such interest and fees are allowed claims in such proceeding.

“Offer to Purchase” means, a Change of Control Offer and an Event of Loss Offer, as applicable.

“Offer to Purchase Payment” means, a Change of Control Payment and an Event of Loss Payment, as applicable.

“Offering Memorandum” means the offering memorandum dated as of January 17, 2023 relating to the offering of the Securities on the Issue Date.

“Officer” means, with respect to any Person, any one of the Chief Executive Officer, the Chief Financial Officer, the Chairman, any Deputy Chairman, the President, any Senior Vice President, any Vice President, the Controller, the Treasurer, any Assistant Treasurer, any Director or the Secretary or any Assistant Secretary of such Person.

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“Officer’s Certificate” means, a certificate signed by any Officer of the Company, and delivered to the Trustee or the Collateral Agent, as applicable.

“Opinion of Counsel” means a written opinion of counsel, who may be internal legal counsel for a Note Party, and who shall be reasonably acceptable to the Trustee or the Collateral Agent, as applicable.

“Organizational Documents” with respect to any Person shall mean, as applicable, such Person’s memorandum of association or certificate of incorporation, memorandum and articles of association, certificate of formation (including, without limitation, by the filing or modification of any certificate of designation), by-laws, limited liability company agreement or partnership agreement or, in each case, equivalent organizational documents.

“Outstanding”, when used with respect to Securities, means, as of any date of determination, all Securities theretofore authenticated and delivered under this Indenture, except:

provided, however, that in determining whether the Holders of the requisite principal amount of the Outstanding Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder, or are present at a meeting of Holders for quorum purposes, Securities owned by the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be Outstanding, except that in determining whether the Trustee shall be protected in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Securities which a Trust Officer actually knows to be so owned shall be so disregarded.  Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes the pledgee’s right so to act with respect to such Securities and that the pledgee is not the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor.

“Participant” means, with respect to the Depositary, a Person who has an account with the Depositary.

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“Performance Guarantees” means all guarantees of the Company, Holdings, or any other Member of the Consolidated Group delivered in connection with the construction financing of Rigs for which firm drilling contracts have been obtained by the Company, Holdings or any other Member of the Consolidated Group.

“Performance Letters of Credit” means all letters of credit issued as support for Non-Recourse Debt or a Performance Guarantee.

“Permitted Collateral Liens” means the following types of Liens:

“Permitted Jurisdiction” means, (i) with respect to any Collateral Rig Owner, any of Norway, Switzerland, England and Wales, Scotland, Luxembourg, Ireland, Hungary, the Marshall Islands, the Cayman Islands, Denmark, the Netherlands, the United States (or any State thereof, including the District of Columbia), or Colombia or (ii) with respect to any Collateral Rig Operator, any of Norway, Switzerland, England and Wales, the United Kingdom, Scotland, Luxembourg, Ireland, Hungary, the Marshall Islands, the Cayman Islands, Denmark, Mexico, the United States (or any State thereof, including the District of Columbia), any current or former member of the European Union, the British Virgin Islands, the Bahamas or Colombia.

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“Person” means an individual, partnership, corporation, limited liability company, association, trust, unincorporated organization or any other entity or organization, including any governmental authority.

“Private Placement Legend” means the legend set forth in Section 2.3(e)(1) of Appendix A hereof to be placed on all Securities issued under this Indenture except as otherwise permitted by the provisions of this Indenture.

“Project Financing Subsidiary” means any Subsidiary of Holdings or the Company (other than the Company and the Legacy Unsecured Notes Subsidiary Guarantors) created for the sole purpose of Incurring Non-Recourse Debt to finance the acquisition, improvement, design, engineering, construction, development, completion, maintenance and operation of, or otherwise pay the costs and expenses relating to or Incurred in connection with the foregoing for, any Rig, and to conduct the business activities for which such Non-Recourse Debt was Incurred, provided that substantially all of the assets of such Person are comprised of such Rig so financed.

“QIB” means a “qualified institutional buyer” as defined in Rule 144A.

“Qualified Local Partner” means any Person that is required or necessary under local law to own Equity Interests in a Collateral Rig Operator as a condition for the operation of a Collateral Rig in such jurisdiction, subject to receipt by the Collateral Agent of an agreement in writing whereby such Person:

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“Rating Agency” means each of Moody’s, S&P and Fitch; provided that, if any of Moody’s, S&P or Fitch ceases to rate the Securities or fails to make a rating of the Securities publicly available for any reason that is beyond the Company’s control, the Company may select (as certified by a resolution of the Company’s board of directors or other equivalent governing body) a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act, as a replacement agency for Moody’s, S&P or Fitch, or all of them, as the case may be.

“Reactivation Costs” means any and all costs and expenses associated with the reactivation of a Collateral Rig from a stacked condition incurred or accrued through the date such Collateral Rig commences commercial operation pursuant to a Drilling Contract.

“Restricted Definitive Security” means one or more Definitive Securities bearing the Private Placement Legend.

“Restricted Global Security” means 144A Global Securities and Regulation S Global Securities.

“Restricted Property” means (a) any Rig; provided that no Rig that has a gross book value of less than 1% of the Company’s Consolidated Net Tangible Assets will be deemed to be a “Rig” for purposes of this clause (a); or (b) the stock of any Subsidiary of the Company owning or leasing a Rig referred to in clause (a).

“Revolving Credit Facility” means the Credit Agreement, dated as of June 22, 2018, among, inter alia, the Company, Citibank, N.A., as administrative agent and collateral agent, and the lenders party thereto, as amended, on or prior to the Issue Date and as further amended, supplemented, restated or otherwise modified from time to time.

“Rig” means any drilling rig or drillship that the Company or any of its Subsidiaries leases or owns, either entirely or in part.

“Rule 144” means Rule 144 promulgated under the Securities Act.

“Rule 144A” means Rule 144A promulgated under the Securities Act.

“Rule 903” means Rule 903 promulgated under the Securities Act.

“Rule 904” means Rule 904 promulgated under the Securities Act.

“S&P” means S&P Global Ratings, a division of The McGraw-Hill Companies, Inc. or any successor to the rating agency business thereof.

“Sale and Leaseback Transaction” means any arrangement with any Person pursuant to which the Company, Holdings or any of its Subsidiaries leases any Rig that has been or is to be sold or transferred by the Company, Holdings or any of its Subsidiaries to such Person, other than (1) temporary leases for a term, including renewals at the option of the lessee, of not more than three years, (2) leases between the Company, Holdings and any of its Subsidiaries or between any of its Subsidiaries, (3) leases of a Rig executed by the time of, or within 12 months after the latest of, the acquisition, the completion of construction or improvement, or the commencement of commercial operation of, the Rig, and (4) arrangements pursuant

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to any provision of law with an effect similar to the former Section 168(f)(8) of the Internal Revenue Code of 1954.

“Sanctions” means economic or financial sanctions or trade embargoes imposed, administered or enforced from time to time by (a) the U.S. government, including the Patriot Act and those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury, the U.S. Department of Commerce, or the U.S. Department of State, or (b) the United Nations Security Council, the European Union, His Majesty’s Treasury of the United Kingdom, Norway, and the State Secretariat for Economic Affairs of Switzerland or the Swiss Directorate of International Law.

“SEC” means the U.S. Securities and Exchange Commission.

“Secured Creditors” means the Holders of the Securities, the Trustee and the Collateral Agent, each in their respective capacities.

“Securities” means the 8.75% Senior Secured Notes due 2030 issued on the Issue Date.

“Securities Act” means the U.S. Securities Act of 1933, as amended.

“Securities Guarantee” means each Guarantee of the obligations with respect to the Securities issued by a Guarantor pursuant to the term of this Indenture.

“Security Documents” means each Share Pledge Agreement, each Account and Receivables Pledge Agreement and any account control agreement related thereto, each Account Pledge Agreement and any account control agreement related thereto, each Assignment of Earnings, each Assignment of Insurances, each Assignment of Bareboat Charter, each Collateral Rig Mortgage, and, after the execution and delivery thereof, each additional security document that grants a Lien in favor of the Collateral Agent for the benefit of the Secured Creditors that is executed pursuant to Section 4.24 or in connection with a Fundamental Change or Flag Jurisdiction Transfer.

“Secured Limited Guarantee Cap” means the maximum principal amount that the Securities are to be guaranteed on a senior secured basis by each Limited Guarantor in a Collateral Rig Guarantor Family as set forth in Annex II hereto, severally in respect of each such Collateral Rig Guarantor Family (but jointly and severally among the entities within such Collateral Rig Guarantor Family), which equals the principal amount of such Collateral Rig Guarantor Family’s Existing Secured Notes outstanding immediately prior to the consummation of the offering of Securities and refinanced with the proceeds thereof.

“Senior Guaranteed Notes Subsidiary Guarantor” means a “Subsidiary Guarantor” as defined in the 2027 Senior Guaranteed Notes Indenture, the 2025 Senior Guaranteed Exchangeable Bonds Indenture or the 2027 Senior Guaranteed Exchangeable Bonds Indenture.

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“Share Pledge Agreement” has the meaning given such term in the definition of Collateral and Guaranty Requirements.

“Stated Maturity” means with respect to any Indebtedness, the date specified in the instrument governing such Indebtedness as the fixed date on which the principal of such Indebtedness or any installment thereof, or any installment of interest thereon, is scheduled to be due and payable, and shall not include any contingent obligations to repay, redeem or repurchase any such principal or interest prior to such date.

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“Subsidiary” means, for any Person, any other Person of which more than fifty percent (50%) of the outstanding stock or comparable equity interests having ordinary voting power for the election of the board of directors, managers, or comparable governing board or body of such other Person (irrespective of whether or not at the time stock or other equity interests of any other class or classes of such corporation or other entity shall have or might have voting power by reason of the happening of any contingency), is at the time directly or indirectly owned by any such Person or by one or more of its Subsidiaries.

“Swiss Group Company” means Holdings and any Subsidiary of Holdings organized in Switzerland.  

“Swiss Withholding Tax” means taxes imposed under the Swiss Withholding Tax Act.

“Swiss Withholding Tax Act” means the Swiss Federal Act on the Withholding Tax of October 13, 1965 (Bundesgesetz über die Verrechnungssteuer), together with the related ordinances, regulations and guidelines, all as amended and applicable from time to time.

“Treasury Rate” means as of any date of redemption of the Securities, the yield to maturity at the time of computation of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 that has become publicly available at least two Business Days prior to the redemption date (or, if such Statistical Release is no longer published, any publicly available source or similar market data)) most nearly equal to the period from the redemption date to February 15, 2026; provided, however, that if the period from the redemption date to February 15, 2026 is not equal to the constant maturity of a United States Treasury security for which a weekly average yield is given, the Treasury Rate shall be obtained by linear interpolation (calculated to the nearest one-twelfth of a year) from the weekly average yields of United States Treasury securities for which such yields are given, except that if the period from the redemption date to February 15, 2026 is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.  The Company will (1) calculate the Treasury Rate on the second Business Day preceding the applicable redemption date, and (2) prior to such redemption date file with the Trustee an Officer’s Certificate setting forth the Make-Whole Premium and the Treasury Rate and showing the calculation of each in reasonable detail.

“Trustee” means the party named as such in this Indenture until a successor replaces it and, thereafter, means the successor.

“Trust Officer” means, when used with respect to the Trustee, any officer within the corporate trust department of the Trustee, including any vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the Persons who at the time shall be such officers, respectively, or to whom any corporate trust matter is referred because of such person’s knowledge of and familiarity with the particular subject and who, in each case, shall have direct responsibility for the administration of this Indenture.

“Unrestricted Definitive Securities” means one or more Definitive Securities that do not and are not required to bear the Private Placement Legend.

“Unrestricted Global Securities” means one or more Global Securities that do not and are not required to bear the Private Placement Legend and are deposited with and registered in the name of the Depositary or its nominee.

“Value” means, with respect to a Sale and Leaseback Transaction, an amount equal to the present value of the lease payments with respect to the term of the lease remaining on the date as of which the

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amount is being determined, without regard to any renewal or extension options contained in the lease which are outstanding on the effective date of such Sale and Leaseback Transaction and which have the benefit of Section 4.07.

“Voting Stock” of any specified “person” (as that term is used in Section 13(d)(3) of the Exchange Act) as of any date means the shares or capital stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

“Wholly-Owned Subsidiary” means, with respect to any Person, any other Person whose Equity Interests are 100% owned by such Person directly or indirectly, except to the extent that the Equity Interests of such other Person are held by a Qualified Local Partner, but only to the minimum extent necessary under local law for the operation of a Collateral Rig in such jurisdiction.

“Withdrawal Certificate” means a withdrawal certificate delivered pursuant to Section 7.10 in the form set forth in Appendix E hereto.

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Each of the Company and the Guarantors irrevocably and unconditionally waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the laying of venue of any such action, suit or proceeding in any such court or any appellate court with respect thereto and irrevocably waives, to the fullest extent permitted by law, the defense of an inconvenient forum to the maintenance of any such action, suit or proceeding in any such court.

To the extent that the Company or any Guarantor has or hereafter may acquire any immunity from jurisdiction of any court or from any legal process (whether through service of notice, attachment prior to judgment, attachment in aid of execution, execution or otherwise) with respect to itself or its property, each of them hereby irrevocably waives such immunity in respect of its obligations under this Indenture, the Securities Guarantees, the Securities and any other Note Document, to the extent permitted by law.

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this Indenture.  The Securities and the Trustee’s certificate of authentication shall be substantially in the form included in Exhibit 1.1 to Appendix A, which are hereby incorporated in, and expressly made a part of, this Indenture.  The Securities may have notations, legends or endorsements required by law, stock exchange rule, agreements to which the Company is subject, if any, or usage (provided that any such notation, legend or endorsement is in a form acceptable to the Company).  Each Security shall be dated the date of its authentication.  The terms of the Securities set forth in Appendix A are part of the terms of this Indenture.

If an Officer whose signature is on a Security no longer holds that office at the time the Trustee authenticates the Security, the Security shall be valid nevertheless.

A Security shall not be valid until an authorized signatory of the Trustee manually signs the certificate of authentication on the Security.  The signature shall be conclusive evidence that the Security has been authenticated under this Indenture.

The Trustee, upon a written order of the Company signed by an Officer of the Company, together with the other documents required by Sections 14.02 and 14.03, shall authenticate Securities for original issue on the Issue Date in the aggregate principal amount not to exceed $1,175,000,000.  Such written order of the Company shall specify the amount of Securities to be authenticated and the date on which the original issue of Securities is to be authenticated.

The Trustee may appoint an authenticating agent reasonably acceptable to the Company to authenticate the Securities.  Unless limited by the terms of such appointment, an authenticating agent may authenticate Securities whenever the Trustee may do so.  Each reference in this Indenture to authentication by the Trustee includes authentication by such agent.  An authenticating agent has the same rights as any Registrar, Paying Agent or agent for service of notices and demands.

If the Company fails to maintain a Registrar or Paying Agent, the Trustee shall act as such and shall be entitled to appropriate reasonable compensation therefor pursuant to Section 7.06.  The Company may change the Paying Agent or Registrar without prior notice to the Holders.  The Company or any of its Affiliates incorporated or organized within The United States of America may act as Paying Agent, Registrar, co-registrar or transfer agent.

The Company initially appoints the Trustee as Registrar and Paying Agent in connection with the Securities.

The Company initially appoints The Depository Trust Company (“DTC”) to act as Depositary with respect to the Global Securities.

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such principal and interest when so becoming due.  The Company shall require each Paying Agent (other than the Trustee) to agree in writing that the Paying Agent shall hold in trust for the benefit of Holders of Securities or the Trustee all money held by the Paying Agent for the payment of principal of or interest on the Securities and shall notify the Trustee of any default by the Company in making any such payment.  If the Company or any of its Affiliates acts as Paying Agent, it shall segregate the money held by it as Paying Agent and hold it as a separate trust fund.  The Company at any time may require a Paying Agent to pay all money held by it to the Trustee and to account for any funds disbursed by the Paying Agent.  Upon complying with this Section, the Paying Agent shall have no further liability for the money delivered to the Trustee.

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Security (including any transfers between or among Depositary participants or beneficial owners of interests in any Definitive Security or Global Security) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

Neither the Trustee nor any agent of the Trustee shall have any responsibility for any actions taken or not taken by the Depositary.

Every replacement Security is an additional obligation of the Company and shall be entitled to all of the benefits of this Indenture equally and proportionately with all other Securities duly issued hereunder.

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If a Security is replaced pursuant to Section 2.07, it ceases to be outstanding unless the Trustee and the Company receive proof satisfactory to them that the replaced Security is held by a protected purchaser (as defined in Section 8-303 of the Uniform Commercial Code).

If the Paying Agent segregates and holds in trust, in accordance with this Indenture, on a redemption date or maturity date, money sufficient to pay all principal and interest payable on that date with respect to the Securities (or portions thereof) to be redeemed or maturing, as the case may be, then on and after that date such Securities (or portions thereof) cease to be outstanding and interest on them ceases to accrue.

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amount of Securities to be redeemed, the redemption price, if then ascertainable and the paragraph or subparagraph of such Article or Section of this Indenture pursuant to which the redemption shall occur.

The Company shall give each notice to the Trustee provided for in this Section at least five Business Days prior to the giving of notice of a redemption unless the Trustee consents to a shorter period.  Such notice shall be accompanied by an Officer’s Certificate from the Company to the effect that such redemption will comply with the conditions herein.

The notice shall identify the Securities to be redeemed (including the Issue Date and the certificate number) and shall state:

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At the Company’s request, the Trustee shall give the notice of redemption in the Company’s name and at the Company’s expense.  In such event, the Company shall provide the Trustee with an Officer’s Certificate delivered at least five Business Days prior to notification of the Holders (unless the Trustee consents to a shorter period) requesting that the Trustee give such notice of redemption and containing the information required by this Section.

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the Trustee for cancellation.  Any such acquisition shall not operate as or be deemed for any purpose to be a redemption unless the Company has expressly stated that it is exercising its redemption rights hereunder.

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(a) Upon the occurrence of a Change of Control Repurchase Event, unless all Securities have been called for redemption pursuant to Section 3.08 or 3.09, the Company shall be required to make an offer (a “Change of Control Offer”) to each Holder of the Securities to repurchase all or any part (in denominations of a minimum principal amount of $2,000 and integral multiples of $1,000 in excess thereof) of such Holder’s Securities at a repurchase price in cash equal to the Change of Control Payment.

(b) Upon the occurrence of an Event of Loss Repurchase Event, unless the Company has redeemed (or provided the Holders of the Securities with a notice of redemption with respect to) an aggregate principal amount of Securities equal to the Event of Loss Principal Amount pursuant to Section 3.08(d), the Company shall be required to make an offer (an “Event of Loss Offer”) to all Holders of the Securities to repurchase at least the Event of Loss Principal Amount of Securities (in denominations of a minimum principal amount of $2,000 and integral multiples of $1,000 in excess thereof) at a repurchase price in cash equal to 100% of the aggregate principal amount of the Securities repurchased plus accrued and unpaid interest thereon, if any, to, but not including the date of repurchase (the “Event of Loss Payment”).

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provided that, notwithstanding the foregoing, at no time shall the Company or any Subsidiary thereof create, Incur, assume or suffer to exist any Lien of any kind on any                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Collateral, except for Permitted Collateral Liens.

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provided that, notwithstanding the foregoing, at no time shall an Existing Collateral Rig Issuer, a Collateral Rig Owner or a Collateral Rig Operator be permitted to Incur Indebtedness other than pursuant to Section 4.05.

provided that, notwithstanding the foregoing, a Collateral Rig Owner may not enter into any Sale and Leaseback Transaction covering a Collateral Rig.

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all such insurances referred to in Section 4.08(b)(1) through (b)(3) (collectively, the “Insurances”), to be maintained in a manner consistent with the applicable Insurances in place on the Issue Date and consistent with insurance obtained by similarly situated vessel owners engaged in the same or similar business;

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Operators to permit the Trustee (and such Persons acting for the Trustee as the Trustee may reasonably designate) during normal business hours at the Company’s sole expense, to visit and inspect any of the properties of the Existing Collateral Rig Issuers or the Collateral Rig Owners or, in the case of the Collateral Rig Operators, the Collateral Rigs, to examine all of their books and records (with respect to the Collateral Rig Operators, solely with respect to a Collateral Rig), to make copies and extracts therefrom (subject to reasonable confidentiality restrictions), and to discuss their respective affairs, finances and accounts (with respect to the Collateral Rig Operators, solely with respect to a Collateral Rig) with their respective officers and independent public accountants (and by this provision each of the Existing Collateral Rig Issuers, the Collateral Rig Owners and Holdings, on behalf of the Collateral Rig Operators, authorizes such accountants to discuss with the Trustee (and such Persons acting for the Trustee as the Trustee may reasonably designate) the affairs, finances and accounts of the Existing Collateral Rig Issuers and the Collateral Rig Owners and with respect to the Collateral Rig Operators, solely with respect to a Collateral Rig), all as often, and to such extent, as may be reasonably requested.  The chief financial officer of Holdings and/or his or her designee shall be afforded the opportunity to be present at any meeting of the Trustee and such accountants.

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(i)without giving prior written notice thereof to the Collateral Agent and the Trustee and otherwise in compliance with this Indenture, change the registered owner, name, or official number, as the case may be, of the class of a Collateral Rig;

(ii)bareboat charter register a Collateral Rig, other than in the Acceptable Flag Jurisdiction in which such Collateral Rig is currently flagged; or

(iii) change the registered flag registry (except in connection with a Flag Jurisdiction Transfer) or classification society of a Collateral Rig to a classification society that is not an Acceptable Classification Society, as the case may be.

provided, however that any non-compliance with this Section 4.15 by any of Holdings, any Collateral Rig Owner or any Collateral Rig Operator shall not be a breach or violation hereof to the extent such non-compliance would not reasonably be expected to have a Material Adverse Effect.

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(b)Holdings shall not permit the Collateral Rig Operators to declare or pay any dividend or make any other similar payment or distribution on account of their respective Equity Interests (including, without limitation, any payment in connection with any merger, consolidation or amalgamation of the Collateral Rig Operators) or to the direct or indirect holders of its Equity Interests in their capacity as such, other than dividends, other similar payments or distributions that are made directly or indirectly to the Collateral Rig Owner or other de minimis dividends, other similar payments or distributions required or necessary under local law or any distributions, directly or indirectly, to the Company for purposes of making payments on the Securities (including funding the Debt Service Reserve Account).  

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The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Persons entitled to waive compliance with any covenant or condition hereunder.  If a record date is fixed, the Holders of such record date, or their duly appointed agents, and only such Persons shall be entitled to waive any such compliance, whether or not such Holders remain Holders after such record date, provided that unless the Holders of at least a majority in aggregate principal amount of the Outstanding Securities shall have waived such compliance prior to the date which is 90 days after such record date, any such waiver previously given shall automatically and without further action by any Holder be cancelled and of no further effect.

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For the avoidance of doubt, unless otherwise provided in a supplemental indenture or board resolution, (x) the term “merger” includes an amalgamation under Cayman Islands law, and the term “all or substantially all of its assets”, with respect to the Company, shall be computed on a consolidated basis, (y) entry into a drilling contract or bareboat charter shall not constitute a sale, lease, conveyance, transfer or other disposition subject to this Article 5 and (z) a reference to “series of transactions” in this Article 5 shall mean a series of related transactions.

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Upon the occurrence of an Event of Default pursuant to this Section 6.01 with respect to Securities all or part of which is represented by a Global Security, a record date shall automatically and without any other action taken by any Person be set for the purpose of determining the Holders of Outstanding Securities entitled to join in any Notice of Default, which record date shall be the close of business on the day the Trustee shall have received such Notice of Default.  The Holders of Outstanding Securities on such record date (or their duly appointed agents), and only such Persons, shall be entitled to join in such Notice of Default, whether or not such Holders remain Holders after such record date; provided that, unless such Notice of Default shall have become effective by virtue of Holders of the requisite principal amount of Outstanding Securities on such record date (or their duly appointed agents) having joined in such Notice of Default prior to the day which is 90 days after such record date, such Notice of Default shall automatically and without any action by any Person be cancelled and of no further effect.  Nothing in this paragraph shall prevent a Holder (or duly appointed agent thereof) from giving, before or after expiration of such 90-day period, a Notice of Default contrary to or different from a Notice of Default previously given by a Holder, or from giving, after the expiration of such period, a Notice of Default identical to a Notice of Default that

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has been cancelled pursuant to the proviso to the preceding sentence, in any of which events a record date in respect thereof shall be set pursuant to the provisions of this Section 6.01.

However, a Default under Section 6.01(d), (e) or (h) will not constitute an Event of Default until the Trustee or the Holders of at least 25% in principal amount of the outstanding Securities (with a copy to the Trustee) notify the Company of the Default and, with respect to Section 6.01(d), (e) or (h), the Company does not cure such Default within the time specified in Section 6.01(d), (e) or (h) after receipt of such notice; provided that a notice of Default may not be given with respect to any action taken, and reported publicly or to the Holders, more than two years prior to such notice of Default.

For the avoidance of doubt, if the principal amount of the Securities is paid on or prior to February 15, 2026 (other than pursuant to Section 3.08(b)-(d)), the Make-Whole Premium provided under Section 3.08 hereof shall be paid, even if such payment is made following acceleration pursuant to this Section 6.02. The Company will pay the Make-Whole Premium, as compensation to the Holders for the loss of their investment opportunity and not as a penalty, whether or not an Event of Default specified in Section 6.01(f) or (g) has occurred and (if an Event of Default specified in Section 6.01(f) or (g) has occurred) without regard to whether the event causing such Event of Default is voluntary or involuntary, or whether payment occurs pursuant to a motion, plan of reorganization, or otherwise, and without regard to whether the Securities and other Notes Obligations are satisfied or released by foreclosure (whether or not by power of judicial proceeding), deed in lieu of foreclosure or by any other means.  Any premium payable pursuant to this Section 6.02 shall be presumed to be the liquidated damages sustained by each Holder as a result of the early repayment of the Securities and the Note Parties agree that it is reasonable under the circumstances currently existing.  EACH NOTE PARTY EXPRESSLY WAIVES (TO THE FULLEST EXTENT IT MAY LAWFULLY DO SO) THE PROVISIONS OF ANY PRESENT OR FUTURE STATUTE OR LAW THAT PROHIBITS OR MAY PROHIBIT THE COLLECTION OF THE MAKE-WHOLE PREMIUM IN CONNECTION WITH ANY SUCH ACCELERATION. The Company expressly agrees (to the fullest extent it may lawfully do so) that: (A) the Make-Whole Premium is reasonable and the product of an arm’s length transaction between sophisticated business people, ably represented by counsel; (B) the Make-Whole Premium shall be payable notwithstanding the then prevailing market rates at the time payment is made; (C) there has been a course of conduct between Holders and the Company giving specific consideration in this transaction for such agreement to pay the Make-Whole Premium; and (D) the Company shall be estopped hereafter from claiming differently than as agreed to in this paragraph. The Company expressly acknowledges that its agreement to pay the Make-Whole Premium to the Trustee for the ratable benefit of the Holders as herein described is a material inducement to Holders to purchase the Securities.

At any time after such a declaration of acceleration with respect to Securities has been made, but before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter provided in this Article, the Holders of a majority in aggregate principal amount of the Outstanding Securities, by written notice to the Company and the Trustee, may rescind and annul such declaration and its consequences if:

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No such rescission shall affect any subsequent default or impair any right consequent thereon.

Upon the Trustee providing any declaration of acceleration, or rescission and annulment thereof pursuant to this Section 6.02 with respect to Securities all or part of which is represented by a Global Security, a record date shall automatically and without any other action by any Person be set for the purpose of determining the Holders of Outstanding Securities entitled to join such declaration of acceleration, or rescission and annulment, as the case may be, which record date shall be the close of business on the date the Trustee shall have provided such declaration of acceleration, or rescission and annulment, as the case may be.  The Holders of Outstanding Securities on such record date (or their duly appointed agents), and only such Persons, shall be entitled to join in such declaration of acceleration, or rescission and annulment, as the case may be, whether or not such Holders remain Holders after such record date; provided that, unless such declaration of acceleration, or rescission and annulment, as the case may be, shall have become effective by virtue of the requisite percentage having been obtained prior to the day which is 90 days after such record date (or their duly appointed agents), such declaration of acceleration, or rescission and annulment, as the case may by, shall automatically and without any action by any Person be cancelled and of no further effect.  Nothing in this paragraph shall prevent a Holder (or duly appointed agent thereof) from giving, before or after the expiration of such 90-day period, a declaration of acceleration, or a rescission and annulment of any such declaration, contrary to or different from a declaration previously given by a Holder, or from giving, after the expiration of such period, a declaration identical to a declaration of acceleration, or rescission and annulment thereof, as the case may be, that has been cancelled pursuant to the proviso to the preceding sentence, in any of which events a new record date shall be established pursuant to the provisions of this Section 6.02.

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the Company shall, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of such Securities, the whole amount then due and payable on such Securities for principal (and premium including the Make-Whole Premium, if any) and interest, if any, and, to the extent that payment of such interest shall be legally enforceable, interest on any overdue principal (and premium including the Make-Whole Premium, if any) and on any overdue interest, at the rate or rates prescribed therefor in such Securities, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

If the Company fails to pay such amounts forthwith upon such demand, the Trustee, in its own name, as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon such Securities and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities, wherever situated.

If an Event of Default with respect to Securities occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of Securities by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.

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Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Securities or the rights of any Holder thereof or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

FIRST: To the payment of all amounts due the Trustee or the Collateral Agent and their agents and attorneys under Section 7.06;

SECOND: To the payment of the amounts then due and unpaid for principal of (and premium including the Make-Whole Premium, if any) and interest, if any, on the Securities in respect of which or for the benefit of which such money has been collected, ratably, without preference or priority of any kind, according to the amounts due and payable on such Securities for principal (and premium including the Make-Whole Premium, if any) and interest, if any, respectively; and

THIRD: The balance, to the Person or Persons entitled thereto.

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it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing themselves of, any provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all of such Holders (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not any such use by a Holder affects, disturbs or prejudices the rights of other Holders or obtains or seeks to obtain priority or preference over such other Holders or enforces any right under this Indenture).

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Securities, provided that in each case (1) such direction shall not be in conflict with any rule of law or with this Indenture, and (2) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction.

Upon receipt by the Trustee of any such direction with respect to Securities all or part of which is represented by a Global Security, a record date shall automatically and without any further action by any Person be set for the purpose of determining the Holders of Outstanding Securities entitled to join in such direction, which record date shall be the close of business on the day the Trustee shall have received such direction.  The Holders of Outstanding Securities on such record date (or their duly appointed agents), and only such Persons, shall be entitled to join in such direction, whether or not such Holders remain Holders after such record date; provided that, unless such direction shall have become effective by virtue of Holders of the requisite principal amount of Outstanding Securities on such record date (or their duly appointed agents) having joined therein on or prior to the 90th day after such record date, such direction shall automatically and without any action by any Person be cancelled and of no further effect.  Nothing in this paragraph shall prevent a Holder (or a duly appointed agent of a Holder) from giving, before or after the expiration of such 90-day period, a direction contrary to or different from a direction previously given by a Holder, or from giving, after the expiration of such period, a direction identical to a direction that has been cancelled pursuant to the proviso to the preceding sentence, in any of which events a new record date in respect thereof shall be set pursuant to the provisions of this Section 6.12.

The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Persons entitled to waive any past Default or Event of Default hereunder.  If a record date is fixed, the Holders on such record date (or their duly designated agents), and only such Persons, shall be entitled to waive any such default hereunder, whether or not such Holders remain Holders after such record date; provided, that unless such majority in principal amount shall have been obtained prior to the date which is 90 days after such record date, any such waiver previously given shall automatically and without further action by any Holder be cancelled and of no further effect.

Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Indenture and the other Note Documents; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon.

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instituted by any Holder or group of Holders holding in the aggregate more than 25% in aggregate principal amount of the Outstanding Securities, or to any suit instituted by any Holder for the enforcement of the payment of the principal of (or premium including the Make-Whole Premium, if any) or interest on any Security on or after the Stated Maturity or Maturities expressed in such Security (or, in the case of redemption, on or after the redemption date).

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To secure the Company’s and the Guarantors’ payment obligations in this Section 7.06, the Trustee shall have a lien prior to the Securities on all money or property held or collected by the Trustee other than money or property held in trust to pay principal of and interest on particular Securities.

The Company’s and the Guarantors’ payment obligations pursuant to this Section shall survive the satisfaction and discharge of this Indenture and the resignation or removal of the Trustee.  When the Trustee Incurs expenses after the occurrence of a Default specified in Section 6.01(f) or (g) with respect to the Company, the expenses are intended to constitute expenses of administration under any Bankruptcy Law or any similar federal, provincial, territorial or state law for the relief of debtors.

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If the Trustee resigns or is removed by the Company, or is removed by the Holders of a majority in principal amount of the Securities and the Company does not reasonably promptly appoint a successor Trustee, or if a vacancy exists in the office of Trustee for any reason (the Trustee in such event being referred to herein as the retiring Trustee), the Holders of a majority in principal amount of the Securities shall promptly appoint a successor Trustee.

A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Company.  Thereupon the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture.  The successor Trustee shall mail a notice of its succession to Holders of the Securities.  The retiring Trustee shall promptly transfer all property held by it as Trustee to the successor Trustee, subject to the lien provided for in Section 7.06.

If a successor Trustee does not take office within 30 days after the retiring Trustee resigns or is removed, the retiring Trustee (at the Company’s expense) or the Holders of 10% in principal amount of the Securities may petition any court of competent jurisdiction for the appointment of a successor Trustee.

If the Trustee fails to comply with Section 7.09, any Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

Notwithstanding the replacement of the Trustee pursuant to this Section, the Company’s obligations under Section 7.06 shall continue for the benefit of the retiring Trustee.

In case at the time such successor to the Trustee shall succeed to the trusts created by this Indenture any of the Securities shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee and deliver such Securities so authenticated as if such successor to the Trustee had itself authenticated such Securities; and, in case at that time any of the Securities shall not have been authenticated, any successor to the Trustee may authenticate such Securities either in the name of any predecessor hereunder or in the name of the successor to the Trustee; and in all such cases such certificate shall have the full force as provided in the Securities or in this Indenture as the certificate of the trustee shall have; provided, however, that the right to adopt the certificate of authentication of any predecessor trustee or to authenticate Securities in the name of any predecessor trustee shall apply only to its successor or successors by merger, conversion or consolidation.

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Section, payments in respect of the principal of and interest, if any, on such Securities when such payments are due, (B) the Company’s obligations with respect to such Securities under Sections 2.06, 2.07 and 2.09, and with respect to the payment of Additional Amounts, if any, on such Securities as contemplated by Section 13.01, (C) the rights, powers, trusts, duties, and immunities of the Trustee hereunder and (D) this Article 8.  Subject to compliance with this Article 8, the Company may exercise its option under this Section 8.02 notwithstanding the prior exercise of its option under Section 8.03.

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The Collateral will be released from the Liens securing the Note Obligations, as provided in Section 12.02 upon defeasance or covenant defeasance in accordance with the provisions of this Section 8.04.

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The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the U.S. Government Obligations deposited pursuant to Section 8.04 or the principal (and premium including the Make-Whole Premium, if any) and interest, if any received in respect thereof, other than any such tax, fee or other charge which by law is for the account of the Holders of the Outstanding Securities.

Anything in this Article 8 to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon a company request any money or U.S. Government Obligations held by it as provided in Section 8.04 which, in the opinion of a nationally recognized firm of financial advisors or independent public accountants (expressed in a written certification thereof delivered to the Company, together with an Officer’s Certificate delivered to the Trustee), are, including in the calculation thereof the amount contained in the Debt Service Reserve Account as of such date, in excess of the amount thereof which would then be required to be deposited to effect an equivalent defeasance or covenant defeasance.

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After an amendment or supplement under this Section 10.01 becomes effective, the Company shall mail to Holders a notice briefly describing such amendment or supplement.  The failure to give such notice to all Holders, or any defect therein, shall not impair or affect the validity of an amendment under this Section 10.01.

The Company, the applicable Note Parties and Collateral Rig Operator, the Collateral Agent, and the Trustee (if applicable), at any time and from time to time, may enter into, amend or supplement any Deed of Quiet Enjoyment with respect to a Drilling Contract for a Collateral Rig without notice to or consent of any Holder to the extent required by the counterparty under such Drilling Contract. At the request of the Company and upon delivery of an Officer’s Certificate and Opinion of Counsel, the Collateral Agent shall execute and deliver such Deed of Quiet Enjoyment.

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The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Persons entitled to consent to any indenture supplemental hereto.  If a record date is fixed, the Holders on such record date or their duly designated agents, and only such Persons, shall be entitled to consent to such supplemental indenture, whether or not such Holders remain Holders after such record date; provided that unless such consent shall have become effective by virtue of the requisite percentage having been obtained prior to the date which is 90 days after such record date, any such consent previously given shall automatically and without further action by any Holder be cancelled and of no further effect.

It shall not be necessary to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if the substance thereof shall be approved.

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Company shall give notice thereof to the Holders of each Outstanding Security affected, in the manner set forth in Section 14.01, setting forth in general terms the substance of such supplemental indenture.

Each Guarantor of Securities waives presentation to, demand of, payment from and protest to the Company of any of the Guaranteed Obligations and also waives notice of protest for nonpayment.  Each Guarantor of Securities waives notice of any default under the Securities or the Guaranteed Obligations.  The obligations of each Guarantor hereunder of Securities shall not be affected by (1) the failure of any Holder or the Trustee to assert any claim or demand or to enforce any right or remedy against the Company or any other Person (including any Guarantor) under this Indenture with respect to the Securities or any other agreement or otherwise; (2) any extension or renewal of any thereof; (3) any rescission, waiver, amendment or modification of any of the terms or provisions of this Indenture with respect to the Securities or any other agreement; (4) the release of any security held by any Holder or the Trustee for the Guaranteed Obligations or any of them; (5) the failure of any Holder or the Trustee to exercise any right or remedy against any other guarantor of the Guaranteed Obligations; or (6) except as set forth in Section 11.06, any change in the ownership of such Guarantor.

Each Guarantor of Securities further agrees that its Securities Guarantee herein constitutes a guarantee of payment (subject to the Secured Limited Guarantee Cap, if applicable), performance and compliance when due (and not a guarantee of collection) and waives any right to require that any resort be had by any Holder or the Trustee to any Security held for payment of the Guaranteed Obligations.

Except as expressly set forth in Sections 9.01, 11.02 and 11.06 and subject to the Secured Limited Guarantee Cap, if applicable, the obligations of each Guarantor of Securities hereunder shall not be subject to any reduction, limitation, impairment or termination for any reason, including any claim of waiver, release, surrender, alteration or compromise, and shall not be subject to any defense of setoff, counterclaim, recoupment or termination whatsoever or by reason of the invalidity, illegality or unenforceability of the Guaranteed Obligations or otherwise.  Without limiting the generality of the foregoing, the obligations of each Guarantor of Securities herein shall not be discharged or impaired or otherwise affected by the failure

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of any Holder or the Trustee to assert any claim or demand or to enforce any remedy under this Indenture with respect to the Securities or any other agreement, by any waiver or modification of any thereof, by any default, failure or delay, willful or otherwise, in the performance of the obligations, or by any other act or thing or omission or delay to do any other act or thing which may or might in any manner or to any extent vary the risk of such Guarantor or would otherwise operate as a discharge of such Guarantor as a matter of law or equity.

Each Guarantor of Securities further agrees that its Securities Guarantee herein shall continue to be effective or be reinstated, as the case may be, if at any time payment, or any part thereof, of principal of or interest on any obligation is rescinded or must otherwise be restored by any Holder or the Trustee upon the bankruptcy or reorganization of the Company or otherwise.

In furtherance of the foregoing and not in limitation of any other right which any Holder of Securities or the Trustee has at law or in equity against any Guarantor by virtue hereof, upon the failure of the Company to pay the principal of or interest on any Guaranteed Obligation when and as the same shall become due, whether at maturity, by acceleration, by redemption or otherwise, or to perform or comply with any other Guaranteed Obligation, each Guarantor hereby promises to and shall, upon receipt of written demand by the Trustee, forthwith pay, or cause to be paid, in cash, to the Holders or the Trustee an amount equal to the sum of (A) the unpaid amount of such Guaranteed Obligations, (B) accrued and unpaid interest on such Guaranteed Obligations (but only to the extent not prohibited by law) and (C) all other monetary Guaranteed Obligations of the Company to the Holders and the Trustee.

Each Guarantor of Securities agrees that, as between it, on the one hand, and the Holders and the Trustee, on the other hand, (i) the maturity of the Guaranteed Obligations hereby may be accelerated as provided in Article 6 for the purposes of such Guarantor’s Securities Guarantee herein, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the Guaranteed Obligations guaranteed hereby, and (ii) in the event of any declaration of acceleration of such Guaranteed Obligations as provided in Article 6, such Guaranteed Obligations (whether or not due and payable) shall forthwith become due and payable by such Guarantor for the purposes of this Section 11.01.

Each Guarantor of Securities also agrees to pay any and all costs and expenses (including reasonable attorneys’ fees) incurred by the Trustee or any Holder in enforcing any rights under this Section 11.01.

(b) Switzerland.

Notwithstanding anything to the contrary in this Indenture, the obligations of a Note Party incorporated and organized under the laws of Switzerland (each a “Swiss Guarantor”) and the rights of the Trustee, Collateral Agent and each Holder under this Indenture or any other Note Document are subject to the following limitations:

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