SECOND AMENDMENT TO SERVICE AGREEMENT

Exhibit 10.22

SECOND AMENDMENT TO SERVICE AGREEMENT

This Second Amendment to Service Agreement (this "Agreement"), effective March 20, 2017, (the "Effective Date"), is by and among, TRANSATLANTIC PETROLEUM LTD., a Bermuda exempted company, and its subsidiaries ("TransAtlantic") and LONGFELLOW ENERGY, LP, a Texas limited partnership, VIKING DRILLING, LLC, a Nevada limited liability company, RIATA MANAGEMENT, LLC, an Oklahoma limited liability company, LONGFELLOW NEMAHA, LLC, a Texas limited liability company, RED ROCK MINERALS, LP, a Delaware limited partnership, RED ROCK ADVISORS, LLC,  a Texas limited liability company, PRODUCTION SOLUTIONS INTERNATIONAL LIMITED, a Bermuda exempted company, and NEXLUBE OPERATING, LLC, a Delaware limited liability company, and their subsidiaries (collectively, the "Riata Entities").

RECITALS:

WHEREAS, TransAtlantic and the Riata Entities entered into that certain Service Agreement dated effective May 1, 2008 (the “Service Agreement”);

WHEREAS, TransAtlantic and the Riata Entities entered into that certain Amendment to Service Agreement, dated effective October 1, 2008;

WHEREAS, TransAtlantic and the Riata Entities wish to amend the Service Agreement to remove Longe Energy Limited as a party, and to add Longfellow Nemaha, LLC, Red Rock Minerals, LP, Production Solutions International Limited, NexLube Operating, LLC and their subsidiaries as parties to the Service Agreement and amend certain provisions of the Service Agreement; and

WHEREAS, the Riata Entities may provide certain services to TransAtlantic in connection with TransAtlantic’s operations;

WHEREAS, TransAtlantic may provide certain services to the Riata Entities in connection with the Riata Entities’ operations;

NOW, THEREFORE, in consideration of the mutual promises hereinafter set forth and other good and valid consideration, the receipt and sufficiency of which are hereby acknowledged, and subject to the terms and conditions hereof, the parties hereto (collectively, the “Parties” and each individually a “Party”) agree as follows:

1. Longe Energy Limited, a Bermuda limited liability company, is hereby removed as a Party to the Service Agreement.

2.Longfellow Nemaha, LLC, a Texas limited liability company, is hereby added as a Party to the Service Agreement.

3.Red Rock Minerals, LP, a Delaware limited partnership, is hereby added as a Party to the Service Agreement.

4.Red Rock Advisors, LLC, a Texas limited liability company, is hereby added as a Party to the Service Agreement.

5.Production Solutions International Limited, a Bermuda exempted company, is hereby added as a Party to the Service Agreement.

Exhibit 10.22

6.NexLube Operating, LLC, a Delaware limited liability company, is hereby added as a Party to the Service Agreement.

7.Section 4.01 of the Service Agreement is hereby deleted in its entirety and replaced with the following:

“4.01.Services to be Provided.  For purposes of this Article IV, “Oil and Gas Services” shall mean:

8.Section 11.02 of the service agreement is hereby amended by deleting the subsections (a) and (b) and replacing them with the following:

Riata Management, LLC

Attn: Michael Haynes

16803 North Dallas Parkway

Addison, TX  75001

972 ###-###-#### – Telephone

972 ###-###-#### – Facsimile

***@***”

TransAtlantic Petroleum Corp.

Attn: Chad Burkhardt

16803 North Dallas Parkway

Addison, TX  75001

214 ###-###-#### – Telephone

214 ###-###-#### – Facsimile

***@***”

9. Except as modified and amended hereby, the Parties acknowledge and agree that the Service Agreement remains in full force and effect.

IN WITNESS WHEREOF, the Parties have executed and delivered this Agreement as of the date Effective Date hereof.

[Signature Pages to Follow]

Exhibit 10.22

TransAtlantic:

Riata Entities:

Exhibit 10.22