GIEGER, LABORDE & LAPEROUSE, LLC.5151 SAN FELIPE, SUITE 750 HOUSTON, TEXAS 77056 PHONE:832-255-6000 I FAX: 832-255-6001' December 14.2017 Via Hand Delivery ... Md item 7a or 7b and

GIEGER, LABORDE & LAPEROUSE, L L C . NEW ORLEANS

701 POYDRAS STREET, SUITE 4800

N E W ORLEANS, LouisiANAv70i*39'' -PHONE: 504-561-0400 j FAX: 504-561-1011

HOUSTON

5151 SAN FELIPE, SUITE 750

HOUSTON, TEXAS 77056

PHONE:832-255-6000 I FAX: 832-255-6001'

December 14.2017

Via Hand Delivery United States Department of the Interior Bureau of Ocean Energy Management ("BOEM") GulfofMexico OCS Region 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attention: Adjudication Unit

To Whom It May Concern:

Re: Non-Required Filings

Enclosed herewith please find photocopies of the documents described below. Please file them in the non-required files maintained by your office, as directed, in the order set forth below:

1. Assignment of Record Title Interest, dated effective as of February 1, 2016, from LLOG Deepwater Development Company I, L . L . C , as Assignor, to Navitas Buckskin US, LLC, as Assignee, affecting Lease OCS-G 25806, KC 785 (please file this document under Category #7 - Contracts, Agreements, and Conveyances in OCS-G 25806);

2. Assignment of Record Title Interest, dated effective as of February 1, 2016, from LLOG Deepwater Development Company I , L.L.C, as Assignor, to Navitas Buckskin US, LLC, as Assignee, affecting Lease OCS-G 25813, KC 828 (please file this document under Category #7 - Contracts, Agreements, and Conveyances in OCS-G 25813);

3. Assignment of Record Title Interest, dated effective as of February, 1, 2016, from LLOG Deepwater Development Company I , L.L.C, as Assignor, to Navitas Buckskin US, LLC, as Assignee, affecting Lease OCS-G 25814, KC 829 (please file this document under Category #7 - Contracts, Agreements, and Conveyances in OCS-G 25814);


5. Assignment of Record Title Interest, dated effective as of February 1, 2016, from LLOG Deepwater Development Company I , L.L.C, as Assignor, to

5053-07-7/2301463.docx

GIEGER, LABORDE & LAPEROUSE, L.L.C.

Page 2

Navitas Buckskin US, LLC, as Assignee, affecting Lease OCS-G 32650, KC 871 (piease file this' document under Category #7 - Contracts, Agreements, and Conveyances ih'OCS-G 32650);


7. Assignment of Record Title Interest, dated effective as of June 23, 2017, from LLOG Deepwater Development Company I, L . L . C , as Assignor, to Buckstone Development Company, L . L . C , as Assignee, affecting Lease OCS-G 25806, KC 785 (please file this document under Category #7 -Contracts, Agreements, and Conveyances in OCS-G 25806);

8. Assignment of Record Title Interest, dated effective as of June 23, 2017, from LLOG Deepwater Development Company I, L . L . C , as Assignor, to Buckstone Development Company, L.L.C., as Assignee, affecting Lease OCS-G 25813, KC 828 (please file this document under Category #7 -Contracts, Agreements, and Conveyances in OCS-G 25813);

9. Assignment of Record Title Interest, dated effective as of June 23, 2017, from LLOG Deepwater Development Company I, L . L . C , as Assignor, to Buckstone Development Company, L.L.C., as Assignee, affecting Lease OCS-G 25814, KC 829 (please file this document under Category #7 -Contracts, Agreements, and Conveyances in OCS-G 25814);



12. Assignment of Record Title Interest, dated effective as of June 23, 2017, from LLOG Deepwater Development Company I, L . L . C , as Assignor,, to Buckstone Development Company, L . L . C , as Assignee, affecting Lease OCS-G 25823, KC 872 (please file this document under Category #7 -Contracts, Agreements, and Conveyances in OCS-G 25823);

13. First Amendment to Mortgage, Assignment of As-Extracted Collateral and Security Agreement, entered into as of December 13, 2017, from Navitas Buckskin US, LLC, as Mortgagor, to Strauss, Lazer Trust Company (1992) Ltd. as Trustee (please file this document under Category #1 - Mortgage,

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GIEGER, LABORDE & LAPEROUSE, L.L.C.

Page 3

Deed of Trust, Security Agreement in OCS-G 25806, OCS-G 25813, OCS-G 25814, OCS-G 25815, OCS-G 32650, and OCS-G 25823);

14. UCC Financing Statement Amendment, from Navitas Buckskin US, LLC, amending Initial UCC Financing Statement Number 51-79480 (please file this document under Category #3 - UCC Filings and Financial Statement in OCS-G 25806, OCS-G 25813, OCS-G 25814, OCS-G 25815, OCS-G 32650, and OCS-G 25823);

15. First Amendment to Mortgage, Assignment of As-Extracted Collateral and Security Agreement, effective as of July 18, 2017, from Buckstone Development Company, L.L.C, as Mortgagor, to Strauss, Lazer Trust Company (1992) Ltd. as Trustee (please file this document under Category #1 - Mortgage, Deed of Trust, Security Agreement in OCS-G 25806, OCS-G 25813, OCS-G 25814, OCS-G 25815, OCS-G 32650, and OCS-G 25823); and

16. UCC Financing Statement Amendment, from Buckstone Development Company, L . L . C , amending Initial UCC Financing Statement Number 51-79481 (please file this document under Category #3 - UCC Filings and Financial Statement in OCS-G 25806, OCS-G 25813, OCS-G 25814, OCS-G 25815, OCS-G 32650, and OCS-G 25823).

Also enclosed are pay.gov receipts evidencing payment of the required filing fees. Should you have any questions, please contact Patti Spinney or Janet Aschaffenburg at 504-561-0400.

Thank you in advance for your courtesies in this matter.

Yours very truly.

Patti L. Spinney Legal Assistant

/pis Enclosures

5053-07-7/2301463.docx

UCC FINANCING STATEMENT AMENDMENT FOLLOW INSTRUCTIONS

A. NAME & PHONE OF CONTACT AT FILER (optional)

B. E-MAIL CONTACT AT FILER (optional)

C. SEND ACKNOWLEDGMENT TO: (Name and Address)

James A. Stuckey Phelps Dunbar, L.L.P. 365 Canal Street, Suite 2000 New Orleans, LA 70130

DEC 1 t mi

ADjUDICMlONSEOTION

THE ABOVE SPACE IS FOR FILING OFFICE USE ONLY

1 a. INITIAL FINANCING STATEMENT FILE NUMBER

51-79480 1 b.l I This FINANCING STATEMENT AMENDMENT is to be tiled [for record]

'—' (or recorded) in the REAL ESTATE RECORDS Filer alflsh Amendment Addendum (Forni UCC3Ad) and praride Debtys name in item 13

^^^^nERMlNAT^ON^f fec t i venesroMh Statement

3. Q ASSIGNMENT (full or partial): Provide name of Assignee in item 7a or 7b, and address of Assignee in item 7c and name of Assignor in item 9 For partial assignment, complete items 7 and 9 and also indicate affected collateral in item 8

4. Q CONTINUATION: Effectiveness of the Financing Statement identified above with respect to the security interests) of Secured Party authorizing this Continuation Statement is continued for the additional period provided by applicable law

5. • PARTY INFORMATION CHANGE:

Check an£ of these two boxes: ANU Check 2m of these three boxes to:

•,—, I—| CHANGE name and/or address: Complete |—.ADD name: Complete item ,—.DELETE name: Give record name

Debtor ai I I Secured Party of record I I item 6a or 6b; Md item 7a or 7b and item 7c I 17a or 7b. and item 7c I I to be deleted in item 6a or 6b

6. CURRENT RECORD INFORMATION: Complete for Party Information Change - provide only ona name (6a or 6b) 6a. ORGANIZATION'S NAME

OR 6b, INDIVIDUAL'S SURNAME FIRST PERSONAL NAME ADDITIONAL NAME(S)/INITIAL(S) SUFFIX

7. CHANGED OR ADDED INFORMATION: Complete for Assianment or Party Inlormalion Change-provide only oas name (7a or 7b) (mo exact Ml name; do not omit, modily. or abbreviate any part of the Debtor'a name) 7a. ORGANIZATION'S NAME

7b. INDIVIDUAL'S SURNAME

INDIVIDUAL'S FIRST PERSONAL NAME

INDIVIDUAL'S ADDITIONAL NAME(S)/INITIAL(S) SUFFIX

7c. MAILING ADDRESS CITY STATE POSTAL CODE COUNTRY

8. I t ^ COLLATERAL CHANGE: Also check one ol Ihese four boxes: | | ADD collateral | ~ ) DELETE collateral RESTATE covered collateral | | ASSIGN collateral

Indicate collateral:

All collateral of debtor described in the attached First Amendment to Mortgage, Assignment of As-Extracted Collateral and Security Agreement, together with all collateral of debtor described in the initial Financing Statement.

9. NAME OF S E C U R E D P A R T Y OF R E C O R D AUTHORIZING THIS AMENDMENT: Provide only sffia name (9a or 9b) (name of Assignor, ilthis is an Assignment)

9a. ORGANIZATION'S NAME

OR Navitas Buckskin US, LLC

OR 9b. INDIVIDUAL'S SURNAME FIRST PERSONAL NAME ADDITIONAL NAME(S)/INITIAL(S) SUFFIX

10. OPTIONAL FILER REFERENCE DATA:

Navitas: File in St. Mary Parish and BOEM 22739416.1 file no. 33248-2

FILING OFFICE COPY — UCC FINANCING STATEMENT AMENDMENT (Form UCC3) (Rev. 04/20/11)

UCC FINANCING STATEMENT AMENDMENT ADDENDUM FOLLOW INSTRUCTIONS

11. INITIAL FINANCING STATEMENT FILE NUMBER: Same as item la on Amendment forni

51-79480 12. NAME OF PARTY AUTHORIZING THIS AMENDMENT: Same as item 9 on Amendment torm


Navitas Buckskin US, LLC

12b. INDIVIDUAL'S SURNAME

FIRST PERSONAL NAME

ADDITIONAL NAME(S)/INITIAL(S)

THE ABOVE SPACE IS FOR FILING OFFICE USE ONLY

13. Name of DEBTOR on related financing statemenl (Name of a current Debtor of record required for indexing purposes only in some filing offices - see Instruction item 13): Provide only one Debtor name (13a or 13b) (use exact, full name; do not omit, modify, or abbreviate any part of the Debtor's name); see Instructions if name does not fit

n o


U K 13b. INDIVIDUAL'S SURNAME FIRST PERSONAL NAME ADDITIONAL NAME(S)/INITIAL(S) SUFFIX

14. ADDITIONAL SPACE FOR ITEM 8 (Collateral):

15. This FINANCING STATEMENT AMENDMENT: 17. Description of real estate:

| | covers timber to be cut covers as-extracted collateral f i ^ is filed as a fixture filing 16. Name and address of a RECORD OWNER of real estate described in item 17

(if Debtor does not have a record interest):

18. MISCELLANEOUS:

Navitas: File in St. Mary Parish and BOEM 22739482.1 file no. 33248-2

FILING OFFICE COPY — UCC FINANCING STATEMENT AMENDMENT ADDENDUM (Form UCC3Ad) (Rev. 04/20/11)

Execution Version

Space above for Clerkof Court's Use

FIRST AMENDMENT TO MORTGAGE, ASSIGNMENT OF AS-EXTRACTED COLLATERAL AND SECURITY AGREEMENT

FROM

NAVITAS BUCKSKIN US, LLC

TO

STRAUSS, LAZER TRUST COMPANY (1992) LTD. as Trustee

and the Bondholders

THIS INSTRUMENT CONTAINS AFTER-ACQUIRED PROPERTY PROVISIONS.

THIS INSTRUMENT SECURES PAYMENT OF FUTURE ADVANCES.

THIS INSTRUMENT COVERS PROCEEDS OF MORTGAGED PROPERTY.

THIS INSTRUMENT COVERS MINERALS AND OTHER SUBSTANCES OF VALUE WHICH MAY BE EXTRACTED FROM THE EARTH (INCLUDING WITHOUT LIMITATION OIL AND GAS) AND THE ACCOUNTS RELATED THERETO, WHICH WILL BE FINANCED AT THE WELLHEADS OF THE W E L L OR WELLS LOCATED ON THE PROPERTIES DESCRIBED IN THE EXHIBIT HERETO.

THIS FIRST AMENDMENT TO MORTGAGE, ASSIGNMENT OF AS-EXTRACTED COLLATERAL AND SECURITY AGREEMENT (this "Amendment to Mortgage") is entered into as of December 1$ , 2017 (the "Effective Date") by and between NAVITAS BUCKSKIN US, LLC (last four digits of federal taxpayer identification number: 1346), a Delaware limited liability company, whose office and mailing address is 9950 Westpark Drive, Suite 500, Houston, Texas 77063, Attention of Chanan Reichman (the "Mortgagor"), and Strauss, Lazer Trust Company (1992) Ltd., a limited liability company organized ahd existing under the laws of the State of Israel, in its capacity as trustee and agent (the "Trustee" and, herein, together with its successors and assigns, the "Mortgagee"), whose office and mailing address is 17 Yitzhak Sadeh St., Tel Aviv, Israel, for its benefit and the benefit of the Bondholders.

R E C I T A L S

A. Navitas Buckskin Financing Ltd., a limited liability company organized and existing under the laws of the State of Israel (the "Issuer"), issued Series A bonds of the Issuer (the "Existing Bonds") pursuant to an Israeli prospectus and Deed of Trust dated June 28, 2017, as amended on July 10, 2017 (as the same may be amended, supplemented, restated, amended and restated, renewed or otherwise modified from time to time, the "Deed of Trust"), executed by and between the Issuer and the Mortgagee.

B. Pursuant to a certain Loan Agreement dated as of July 18, 2017 (as the same may be amended, supplemented, restated, amended and restated, renewed or otherwise modified from time to time, the "Loan Agreement"), executed by and between the Issuer, as the lender, and the Mortgagor, as the borrower, the Issuer loaned the gross proceeds of the Bonds to the Mortgagor.

C. Under the provisions of the Deed of Trust, as a condition to the issuance of the Bonds, the Mortgagor executed that certain Mortgage, Assignment of As-Extracted Collateral and Security Agreement, dated as bf July 18, 2017 (as the same may be amended, supplemented, restated, amended and restated, renewed or otherwise modified from time to time, the "Mortgage"), and a Security Agreement (as the same may be amended, supplemented, restated, amended and restated, renewed or otherwise modified from time to time, the "Security Agreement") in favor of the Mortgagee to secure the Secured Obligations (as defined below). The Mortgage was recorded July 19, 2017, in the mortgage records of the Clerks of Court of: Vermilion Parish under Instrument Number 2017006720; Iberia Parish under File Number 2017-00006939, Book 1770, Page 87; and St. Mary Parish under File Number 328317, Book 1514, Page 609.

D. The Mortgagee and the Bondholders conditioned their obligations under the Secured Transaction Documents upon the execution and delivery by the Mortgagor of the Mortgage, and the Mortgagor entered into the Mortgage to, among other things, (i) grant and assign by the Mortgagor to the Mortgagee the Collateral (as hereinafter defined) and (ii) secure certain obligations owing to the Mortgagee and the Bondholders under the Secured Transaction Documents.

E. The Issuer has, simultaneously with the execution and delivery of this Amendment to Mortgage, issued and sold additional. Series A Bonds (the "Additional Bonds", together with the Existing Bonds, the "Bonds") pursuant to the Deed of Trust and amended and restated the Loan Agreement and the Security Agreement.

F. That certain Mortgage, the Bonds, the Deed of Trust and the Security Agreement are collectively referred to herein as the "Secured Transaction Documents."

G. The parties hereto now desire to amend the Mortgage in connection with the foregoing transactions.

H. Therefore, in order to comply with the terms and conditions of the Secured Transaction Documents and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows:

ARTICLE I DEFINITIONS

Section 1.01 Unless otherwise defined herein, including in the text of the recitals, all capitalized terms used herein shall have the respective meanings given to such terms in Section 1.02 of the Mortgage. Each capitalized term used in this Amendment to Mortgage and not defined in the Mortgage shall have the meaning ascribed to such term in the Security Agreement. Any capitalized term not defined in either the Mortgage or the Security Agreement shall have the meaning ascribed to such term in the Applicable UCC.

Section 1.02 The interpretive rules set forth in Section 1.03 of the Mortgage shall apply to this Amendment to Mortgage in all respects.

ARTICLE II AMENDMENTS TO MORTGAGE

Section 2.01 Amendment to Section 1.01 of the Mortgage. Section 1.01 of the Mortgage is hereby amended as follows:

\ (a) by amending and restating the definition of "Bonds" in its entirety to read

as follows:

"Bonds" shall have the meaning set forth in" Recital E of the First Amendment to Mortgage.

(b) by adding the following definition in proper alphabetical sequence:

"First Amendment to Mortgage" means that certain first amendment to this Mortgage, dated as of December , 2017.

-2-

Section 2.02 Amendment to Section 7.02(a.) of the Mortgage. Section 7.02(a) of the Mortgage is hereby amended and restated in its entirety to read as follows:

(a) Maximum Amount. Notwithstanding any provision hereof to the contrary, the maximum amount of all Secured Obligations (whether principal, interest, expenses, or any other amounts or liabilities) that may be outstanding at any time and from time to time that this Mortgage secures is fixed at USD$200,000,000.

Section 2.03 Amendment to Exhibit A of the Mortgage. Exhibit A of the Mortgage is hereby replaced in its entirety with the Exhibit A attached hereto as Annex I . To secure payment and performance of the Secured Obligations, the Mortgagor does by these presents hereby GRANT, MORTGAGE, COLLATERALLY ASSIGN, PLEDGE, AND HYPOTHECATE the Mortgaged Property to the Mortgagee, for its benefit and the benefit of the Bondholders, and grants to the Mortgagee, for its benefit and the benefit of the Bondholders, a security interest in the UCC Collateral, in each case as defined with reference to Exhibit A attached hereto as Annex I .

ARTICLE I I I MISCELLANEOUS

Section 3.01 Headings. Section headings used herein are for convenience of reference only, are not part of this Amendment to Mortgage and shall not affect the construction of, or be taken into consideration in interpreting, this Amendment to Mortgage.

Section 3.02 Incorporation bv Reference. The provisions of Sections 6.01, 6.02, 6.03, 6.04, 6.05, 6.10, 6.11. 6.12, 6.13, 6.14, 6.16, 6.17, 6.18, 7.01 and 7.02(b), (c), (d), (e), ( f ) , (g), (h), (i), (j), (k), £1) and (m) of the Mortgage are incorporated by reference herein and made a part hereof, mutatis mutandis.

[SIGNATURES BEGIN NEXT PAGE]

-3-

THUS DONE AND PASSED THIS l^dky of LPCMMIOPX) _, 2017, to be effective as of the Effective Date, in CD\j)ri hyn , LtfU^siantL, in my presence and in the presence of the undersigned competent witnesses who hereunto sign their names with Mortgagor and me, Notary, after reading the whole. Mortgagor, acting by and through its duly authorized signatory, has executed this Amendment to Mortgage on the date set forth above to be effective as the date first mentioned on the cover page.

MORTGAGOR:

NAVITAS BUCKSKIN US, LLC

By: Name: Jonathan Sternberg Title: Authorized Signatory

WITNESSES:

By: Name: J5Vvg-A\

By: Name:

Notary Poblic

PrintedName: Cf" My Commission expires:

Notarial No. (if applicable): o 6 x 3 r.

SEAL: George Moore Gilly

Notary Public State of Louisiana

Louisiana Bar Roll # 06234 My Commission is issued for Life.

Signature Page to Amendment to Mortgage

THUS DONE AND PASSED THIS l 2 % y of V ^ L m b ^ T _, 2017, to be effective as of the Effective Date, in MiuiX^lc- , /JgtoNbr)^, in my presence and in the presence of the undersigned competent witnesses who hereunto sign their names with Trustee and me. Notary, after reading the whole. Trustee, acting by and through its duly authorized signatory, has acknowledged this Amendment to Mortgage on the date set forth above to be effective as the date first mentioned on the cover page.

TRUSTEE:

STRAUSS, LAZER TRUST COMPANY (1992) LTD.

By: _^ Name: ~~^Qb^W^^Cr Title: Authorized Signatory

WITNESSES:

By: (S-W^ ^Q^VSK^-*-^ Name: £ r i r \ S /QiQ o

By: Name: AMK /f/l^A.^ TCU C<

Printed Name: My Commission expires: Qualified in Maw forfcCoumy.

Notarial No. (if applicable): "y commission Expires August 7^1

Notary Public TING WANG

Notary Public-State of Nsw Yb* No. 02 6302885

QtalifisdinNewVbrttCotiniy

SEAL:

Signature Page to Amendment to Mortgage

ANNEX I

EXHIBIT A

to

MORTGAGE, ASSIGNMENT OF AS-EXTRACTED COLLATERAL AND SECURITY AGREEMENT

Introduction

The capitalized terms used but not defined in this Exhibit A are used as defined in the Mortgage. For purposes of this Exhibit A the capitalized terms not defined in the Mortgage are as follows:

1. "Working Interest" or "Gross Working Interest" and "W.I." or "G.W.I." means an interest owned in an oil, gas and mineral lease that determines the cost bearing percentage of the owner of such interest.

2. "Net Revenue Interest" or "N.R.I." means an interest (expressed as a percentage or decimal fraction), determined net of all royalties, overriding royalties, production payments or other burdens payable out of production, in and to all Hydrocarbons produced and saved from or attributable to a Well. In the case of any Well listed in Exhibit A, the Net Revenue Interest specified for such Well shall mean the sum of the percentage or decimal fraction set forth after the words "Net Revenue Interest" in the portion applicable to such Well plus, in the case of any Well with respect to which a royalty interest and/or overriding royalty is stated in this Exhibit A and applicable to such Well, the percentage or decimal fraction set forth after the words "Royalty Interest" or "Overriding Royalty Interest" in each such portion of Exhibit A.

4. "WeU" means (i) any existing well identified in Exhibit A, including any replacement well drilled in lieu thereof from which gas is now or hereafter produced and (ii) any well at any time producing or capable of producing gas attributable to the Hydrocarbons as defined above; including any well which has been shut-in, has temporarily ceased production or on which workqver, reworking, plugging and abandonment or other operations are being conducted or planned.

All references contained in this Exhibit A to the Oil and Gas Properties are intended to include references to (i) the volume or book and page, file, entry or instrument number of the appropriate records of the particular parish in the state where each such lease or other instrument is recorded and (ii) all valid and existing amendments to such lease or other instrument of record in such parish records regardless of whether such amendments are expressly described herein. A special reference is here made to each such lease or other instrument and the record thereof for a more particular description of the property and interests sought to be affected by the Mortgage and for all other purposes.

Exhibit A - Page 1

For recording purposes, in regards to each parish portion to this Exhibit A, this Introduction may be attached to an original executed copy of the Mortgage to be separately filed of record in each parish.

Description of Oil and Gas Properties:

1. Oil and Gas Lease of Submerged Lands under the Outer Continental Shelf Lands Act, bearing Serial No. OCS-G 25806, effective as of December 1, 2003, granted by the United States of America, as Lessor, in favor of Chevron U.S.A. Inc., as Lessee, covering all of Block 785, Keathley Canyon, OCS Official Protraction Diagram, NG 15-05, as recorded:

• Vermilion Parish, Louisiana January 19, 2017 COB No. 2017000455

• Iberia Parish, Louisiana June 19, 2017 COB No. 2017-00005504, Book 1626, Page 755

• St. Mary Parish, Louisiana June 19, 2017 COB No. 327862, Book 354, Page 659

Navitas Buckskin US, LLC - 7.5% Working Interest


• Vermilion Parish, Louisiana June 19, 2017 COB No. 2017005699

• Iberia Parish, Louisiana June 19,2017 COB No. 2017-00005489, Book 1626, Page 633

St. Mary Parish, Louisiana June 19,2017 COB No. 327849, Book 354, Page 537

Exhibit A - Page 2








• Vermilion Parish, Louisiana June 19,2017 COB No. 2017005674

• Iberia Parish, Louisiana June 19,2017 COB No. 2017-00005519, Book 1626, Page 877

St. Mary Parish, Louisiana June 19,2017 COB No. 327913, Book 355, Page 342

Exhibit A - Page 3


5. Oil and Gas Lease of Submerged Lands under the Outer Continental Shelf Lands Act, bearing Serial No. OCS-G 32650, effective as of August 1, 2008, granted by the United States of America, as Lessor, in favor of Repsol E&P USA Inc. and Chevron U.S.A. Inc., as Lessees, covering all of Block 871, Keathley Canyon, OCS Official Protraction Diagram, NG 15-05 , as recorded:

• Vermilion Parish, Louisiana January 19, 2017 COB No. 2017000459

• Iberia Parish, Louisiana June 19, 2017 COB No. 201700005461, Book 1626, Page 389

St. Mary Parish, Louisiana June 19, 2017 COB No. 327901, Book 355, Page 266






Navitas B.uckskin US, LLC - 7.5% Working Interest

Exhibit A - Page 4