HORNBECK OFFSHORE SERVICES, INC. 6.125% Series A Senior Note due 2014

Exhibit 4.11

REGULATION S GLOBAL NOTE

HORNBECK OFFSHORE SERVICES, INC.

6.125% Series A Senior Note due 2014

Hornbeck Offshore Services, Inc. hereby promises to pay to Cede & Co. or registered assigns, the principal sum of TWO MILLION AND THIRTY-FIVE THOUSAND Dollars ($2,035,000) or such other amount as may be endorsed on the Schedule of Exchanges of Notes attached hereto on December 1, 2014.

Interest Payment Dates: June 1 and December 1

Record Dates: May 15 and November 15

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TRUSTEE’S CERTIFICATE OF AUTHENTICATION:

This is one of the Notes referred

to in the within-mentioned Indenture.

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee

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(Back of Note)

6.125% Series A Senior Notes due 2014

Unless and until it is exchanged in whole or in part for Notes in definitive form, this Note may not be transferred except as a whole by the Depository to a nominee of the Depository or by a nominee of the Depository to the Depository or another nominee of the Depository or by the Depository or any such nominee to a successor Depository or a nominee of such successor Depository. Unless this certificate is presented by an authorized representative of The Depository Trust Company (55 Water Street, New York, New York) (“DTC”), to the issuer or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of Cede & Co. or such other name as may be requested by an authorized representative of DTC (and any payment is made to Cede & Co. or such other entity as may be requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL in as much as the registered owner hereof, Cede & Co., has an interest herein.

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THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE OR OTHER SECURITIES LAWS. NEITHER THIS NOTE NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS THE TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. THE HOLDER OF THIS NOTE BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT), (B) AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(A)(1), (2), (3) OR (7) OF REGULATION D UNDER THE SECURITIES ACT (AN “INSTITUTIONAL ACCREDITED INVESTOR”) OR (C) IT IS NOT A U.S. PERSON WHO IS ACQUIRING THIS NOTE IN AN “OFFSHORE TRANSACTION” PURSUANT TO RULE 903 OR RULE 904 OF REGULATION S, (2) AGREES THAT IT WILL NOT, PRIOR TO THE EXPIRATION OF THE 40 DAY PERIOD AFTER THE COMMENCEMENT OF THE OFFERING OF THE NOTES, OFFER, SELL OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) TO HORNBECK OFFSHORE SERVICES, INC. (THE “COMPANY”) OR ANY OF ITS SUBSIDIARIES, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE NOTES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S, (E) TO AN INSTITUTIONAL ACCREDITED INVESTOR OR (F) PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OR ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, AND (3) AGREES THAT IT WILL GIVE TO EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND; PROVIDED THAT THE COMPANY AND THE TRUSTEE SHALL HAVE THE RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER (I) PURSUANT TO CLAUSE (E) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM AND (II) IN EACH OF THE FOREGOING CASES, TO REQUIRE THAT A CERTIFICATION OF TRANSFER IN THE FORM APPEARING IN THE INDENTURE IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE.

1. Interest. Hornbeck Offshore Services, Inc., a Delaware corporation (the “Company”), promises to pay interest on the principal amount of this Note at 6.125% per annum from November 23, 2004 until maturity, including if applicable, Additional Interest payable pursuant to Section 2 of the Registration Rights Agreement referred to below. The Company will pay interest semi-annually in arrears on June 1 and December 1 of each year, commencing June 1, 2005, or if any such day is not a Business Day, on the next succeeding Business Day (each an “Interest Payment Date”). Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from the date of original issuance; provided that if there is no existing Default or Event of Default in the payment of interest, and if this Note is authenticated between a record date referred to on the face hereof and the next succeeding Interest Payment Date, interest shall accrue from such next succeeding Interest Payment Date, except in the case of the original issuance of Notes, in which case interest shall accrue from the date of authentication. The Company shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal and premium, if any, from time to time on demand at a rate that is the rate then in effect; it shall pay interest (including

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post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (without regard to any applicable grace periods) from time to time on demand at the same rate to the extent lawful. Interest will be computed on the basis of a 360 day year of twelve 30 day months.

2. METHOD OF PAYMENT. The Company will pay interest on the Notes (except defaulted interest) to the Persons who are registered Holders of Notes at the close of business on the May 15 or November 15 next preceding the Interest Payment Date, even if such Notes are cancelled after such record date and on or before such Interest Payment Date, except as provided in Section 2.12 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium, if any, and interest at the office or agency of the Company maintained for such purpose in New York, New York or, at the option of the Company, payments of interest may be made by check mailed to the Holders at their addresses set forth in the register of Holders, and provided that payment by wire transfer of immediately available funds will be required with respect to principal of, and interest and premium, if any, on, all Global Notes and all other Notes the Holders of which shall have provided wire transfer instructions to a Paying Agent. Such payments shall be in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts. The principal of the Notes shall be payable only upon surrender of any Note at the specified offices of any Paying Agent.

If the due date for payment of the principal in respect of any Note is not a Business Day at the place in which it is presented for payment, the Holder thereof shall not be entitled to payment of the amount due until the next succeeding Business Day at such place and shall not be entitled to any further interest or other payment in respect of any such delay.

3. PAYING Agent AND REGISTRAR. Initially, Wells Fargo Bank, National Association, the Trustee under the Indenture, will act as Registrar and Paying Agent at its Corporate Trust Office in Middletown, Connecticut. Initially, the office or agency in New York, New York, where Notes may be presented for payment is Wells Fargo Corporate Trust, c/o The Depository Trust Company, 1st Floor, TADS Department, 55 Water Street, New York, New York 10041. The Company may change any Paying Agent or Registrar without notice to any Holder. The Company or any of its Subsidiaries may act in any such capacity.

4. INDENTURE. The Company issued the Notes under an Indenture dated as of November 23, 2004 (“Indenture”) among the Company, the Guarantors and the Trustee. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939, as amended (15 U.S. Code §§77aaa 77bbbb). The Notes are subject to all such terms, and Holders are referred to the Indenture and such Act for a statement of such terms. The Notes are general unsecured obligations of the Company limited to $225,000,000 aggregate principal amount in the case of Notes issued on the Issue Date (as defined in the Indenture).

5. OPTIONAL REDEMPTION.

(a) At any time prior to December 1, 2009, the Company may redeem the Notes at its option, in whole or in part, at a redemption price equal to 100% of the principal amount thereof plus the Make Whole Premium as of, and accrued and unpaid interest, if any, to, the date of redemption.

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(b) At any time on or after December 1, 2009, the Company shall have the option to redeem the Notes, in whole or in part, upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, thereon to the applicable redemption date, if redeemed during the twelve-month period beginning on December 1 of the years indicated below:

(c) Further, prior to December 1, 2007, the Company may redeem on any one or more occasions Notes representing up to 35% of the aggregate principal amount of Notes originally issued under the Indenture (including any Notes originally issued after the Issue Date but excluding any Series B Notes for purposes of calculating such amount) at a redemption price of 106.125% of the principal amount thereof, plus accrued and unpaid interest, if any, thereon to the redemption date, with the net cash proceeds of one or more Qualified Equity Offerings, provided that (a) Notes representing at least 65% of the aggregate principal amount of Notes originally issued under the Indenture (including any Notes originally issued after the Issue Date but excluding any Series B Notes for purposes of calculating such amount) remain outstanding immediately after the occurrence of each such redemption and (b) such redemption shall occur within 60 days of the date of the closing of each such Qualified Equity Offering.

6. MANDATORY REDEMPTION.

Except as set forth in paragraph 7 below, the Company shall not be required to make mandatory redemption or sinking fund payments with respect to the Notes.

7. PUT OPTION OF HOLDER.

(a) If there is a Change of Control, the Company shall be required to make an offer (a “Change of Control Offer”) to purchase all or any portion (equal to minimum amounts of $2,000 and integral multiples of $1,000 in excess thereof) of each Holder’s Notes, at a purchase price in cash equal to 101% of the aggregate principal amount thereof plus accrued and unpaid interest, if any, thereon to the date of purchase (the “Change of Control Payment”). Within 30 days following any Change of Control, the Company shall give notice to each Holder and the Trustee describing the transaction that constitutes the Change of Control and setting forth the procedures governing the Change of Control Offer as required by the Indenture.

(b) If the Company or a Restricted Subsidiary consummates any Asset Sales, within 30 days of each date on which the aggregate amount of Excess Proceeds exceeds $20,000,000, the Company shall commence an offer to all Holders of Notes (an “Asset Sale Offer”) pursuant to Section 3.09 of the Indenture to purchase the maximum principal amount of Notes that may be

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purchased out of the Excess Proceeds at an offer price in cash in an amount equal to 100% of the principal amount thereof plus accrued and unpaid interest, if any, thereon to the date of purchase, in accordance with the procedures set forth in the Indenture; provided, however, that, if the Company is required to apply such Excess Proceeds to purchase, or to offer to purchase, any Pari Passu Indebtedness, the Company shall only be required to offer to purchase the maximum principal amount of Notes that may be purchased out of the amount of such Excess Proceeds multiplied by a fraction, the numerator of which is the aggregate principal amount of Notes outstanding and the denominator of which is the aggregate principal amount of Notes outstanding plus the aggregate principal amount of Pari Passu Indebtedness outstanding. To the extent that the aggregate principal amount of Notes tendered pursuant to an Asset Sale Offer is less than the amount that the Company is required to purchase, the Company may use any remaining Excess Proceeds for general corporate purposes in any manner not prohibited by the Indenture. If the aggregate principal amount of Notes surrendered by Holders thereof exceeds the amount that the Company is required to purchase, the Trustee shall select the Notes to be purchased on a pro rata basis (with such adjustments as may be deemed appropriate by the Trustee so that only Notes in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof, shall be purchased). Holders of Notes that are the subject of an offer to purchase will receive an Asset Sale Offer from the Company prior to any related purchase date and may elect to have such Notes purchased by completing the form entitled “Option of Holder to Elect Purchase” on the reverse of the Notes.

8. NOTICE OF REDEMPTION. Notice of redemption will be mailed at least 30 days but not more than 60 days before the redemption date to each Holder whose Notes are to be redeemed at its registered address. Notes in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000, unless all of the Notes held by a Holder are to be redeemed. On and after the redemption date interest ceases to accrue on Notes or portions thereof called for redemption.

9. DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as provided in the Indenture. The Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and the Company may require a Holder to pay any transfer taxes or similar governmental charges. The Company need not exchange or register the transfer of any Note or portion of a Note selected for redemption, except for the unredeemed portion of any Note being redeemed in part. Also, it need not exchange or register the transfer of any Notes for a period of 15 days before a selection of Notes to be redeemed.

10. PERSONS DEEMED OWNERS. The registered Holder of a Note may be treated as its owner for all purposes.

11. AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain exceptions, the Indenture or the Notes may be amended or supplemented with the consent of the Holders of at least a majority in principal amount of the then outstanding Notes, and any existing Default or Event of Default or compliance with any provision of the Indenture or the Notes may be waived with the consent of the Holders of at least a majority in principal amount of the then outstanding Notes. Without the consent of any Holder of a Note, the Indenture or the Notes may be amended

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or supplemented to cure any ambiguity, defect or inconsistency, to provide for uncertificated Notes in addition to or in place of certificated Notes, to provide for the assumption of the Company’s obligations to Holders of the Notes in case of a merger or consolidation, to secure the Notes, to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights under the Indenture of any such Holder (provided that any change to conform the Indenture to the offering circular of the Company relating to the Series A Notes will not be deemed to adversely affect such legal rights), to add any additional Guarantor or to release any Guarantor from its Subsidiary Guarantee, in each case as provided in the Indenture, or to comply with the requirements of the Commission in order to effect or maintain the qualification of the Indenture under the Trust Indenture Act.

12. DEFAULTS AND REMEDIES. Events of Default include: (i) default for 30 days in the payment when due of interest, including Additional Interest, if any, on the Notes; (ii) default in payment when due of the principal of or premium, if any, on the Notes; (iii) failure by the Company to comply with any of the then applicable provisions of Section 3.09, 4.10, 4.15 or 5.01 of the Indenture; (iv) failure by the Company for 60 days after it receives written notice to observe or perform any other then applicable covenant or other agreement in the Indenture or the Notes; (v) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Company or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), whether such Indebtedness or guarantee now exists or is created after the Issue Date, which default (a) is caused by a failure to pay principal of or premium or interest on such Indebtedness prior to the expiration of any grace period provided in such Indebtedness, including any extension thereof (a “Payment Default”) or (b) results in the acceleration of such Indebtedness prior to its express maturity and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under which there has been a Payment Default or the maturity of which has been so accelerated, aggregates at least $10,000,000, and provided, further, that if such default is cured or waived or any such acceleration rescinded, or such Indebtedness is repaid within a period of 10 days from the continuation of such default beyond the applicable grace period or the occurrence of such acceleration, as the case may be, an Event of Default and any consequential acceleration of the Notes shall be automatically rescinded, so long as said rescission does not conflict with any judgment or decree; (vi) failure by the Company or any of its Restricted Subsidiaries to pay final judgments aggregating in excess of $10,000,000, which judgments are not paid, discharged or stayed for a period of 60 days; (vii) failure by any Guarantor to perform any covenant set forth in its Subsidiary Guarantee, or the repudiation by any Guarantor of its obligations under its Subsidiary Guarantee or the unenforceability of any Subsidiary Guarantee for any reason other than as provided in the Indenture; and (viii) certain events of bankruptcy or insolvency with respect to the Company or any Significant Subsidiary. If any Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in principal amount of the then outstanding Notes may, by notice, declare all the Notes to be due and payable. Notwithstanding the foregoing, in the case of an Event of Default arising from certain events of bankruptcy or insolvency with respect to the Company, all outstanding Notes will become due and payable without further action or notice. Holders may not enforce the Indenture or the Notes except as provided in the Indenture. Subject to certain limitations, Holders of a majority in principal amount of the then outstanding Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders of the Notes notice of any continuing Default or Event

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of Default (except a Default or Event of Default relating to a payment obligation on the Notes) if it determines that withholding notice is in their interest. The Holders of a majority in aggregate principal amount of the Notes then outstanding by notice to the Trustee may on behalf of the Holders of all of the Notes waive any existing Default or Event of Default and its consequences under the Indenture except a continuing Default or Event of Default in the payment of the principal of, or premium, if any, or interest on, the Notes. The Company is required to deliver to the Trustee annually a statement regarding compliance with the Indenture, and the Company is required upon becoming aware of any Default or Event of Default, to deliver to the Trustee a statement specifying such Default or Event of Default.

13. DEFEASANCE. The Notes are subject to legal and covenant defeasance upon the terms and conditions specified in Article 8 of the Indenture.

14. TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Company or its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not the Trustee.

15. NO RECOURSE AGAINST OTHERS. A director, officer, employee, incorporator, member, partner or shareholder or other owner of Capital Stock of the Company or any Guarantor, as such, shall not have any liability for any obligations of the Company or any Guarantor under the Notes, the Subsidiary Guarantees or the Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for the issuance of the Notes.

16. AUTHENTICATION. This Note shall not be valid until authenticated by the manual signature of an authorized signatory of the Trustee or an authenticating agent.

17. ABBREVIATIONS. Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors Act).

18. ADDITIONAL RIGHTS OF HOLDERS. In addition to the rights provided to Holders of Notes under the Indenture, certain Holders shall have all the rights set forth in the Registration Rights Agreement dated as of even date with the Indenture, among the Company, the Guarantors and the Initial Purchasers (the “Registration Rights Agreement”).

19. CUSIP NUMBERS. Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Company has caused CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP numbers in notices of redemption as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon.

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The Company will furnish to any Holder upon written request and without charge a copy of the Indenture or the Registration Rights Agreement. Requests may be made to:

Hornbeck Offshore Services, Inc.

103 Northpark Boulevard, Suite 300

Covington, Louisiana 70433

Attention: Chief Financial Officer

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ASSIGNMENT FORM

To assign this Note, fill in the form below: (I) or (we) assign and transfer this Note to

___________________________________________________________________________________________________________

(Insert Assignee’s Soc. Sec. or Tax I.D. no.)

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

(Print or Type Assignee’s Name, Address and Zip Code.)

and irrevocably appoint ____________________________________________________________________________________

to transfer this Note on the books of the Company. The agent may substitute another to act for him.

___________________________________________________________________________________________________________

Date:                     

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OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Note purchased by the Company pursuant to Section 4.10 or 4.15 of the Indenture, check the box below:

If you want to elect to have only part of the Note purchased by the Company pursuant to Section 4.10 or Section 4.15 of the Indenture, state the amount you elect to have purchased: $                    

Date:

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SCHEDULE OF EXCHANGES OF NOTES

The following exchanges, redemptions, repurchases and transfers of interests of a part of this Global Note have been made:

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