TGA TransGlobe Energy Corporation

TRANSGLOBE ENERGY CORPORATION STOCK OPTION PLAN

(Full title of the plans)

Ronald Y. Bain

Vice President

c/o VAALCO Energy, Inc.

9800 Richmond Avenue

Suite 700

Houston, TX 77042

(Name and address of agent for service)

(713) 623-0801

(Telephone number, including area code, of agent for service)

Copies to:

John R. Ablan

Mayer Brown LLP

71 S. Wacker Drive

Chicago, IL 60606

 Tel: (312) 782-0600

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

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DEREGISTRATION OF SECURITIES

These post-effective amendments relate to the following registration statements on Form S-8 (collectively, the “Registration Statements”) filed by TransGlobe Energy Corporation, a corporation organized under the laws of Alberta, Canada (“TransGlobe”) with the Securities and Exchange Commission (the “SEC”):

On October 13, 2022, pursuant to that certain Arrangement Agreement (the “Arrangement Agreement”), dated as of July 13, 2022, by and among TransGlobe, VAALCO Energy, Inc., a Delaware corporation (“VAALCO”) and VAALCO Energy Canada ULC, an Alberta unlimited liability company (“AcquireCo”), to effect, among other things, the acquisition by AcquireCo of all of TransGlobe’s outstanding Common Shares under a plan of arrangement under the Business Corporations Act (Alberta), TransGlobe became a direct wholly-owned subsidiary of AcquireCo and an indirect wholly-owned subsidiary of VAALCO.

As a result of the completion of the transactions contemplated by the Arrangement Agreement, TransGlobe has terminated all offerings of securities pursuant to the Registration Statements. Accordingly, TransGlobe hereby terminates the effectiveness of the Registration Statements and, in accordance with an undertaking made by TransGlobe in the Registration Statements to remove from registration, by means of a post-effective amendment, any of the securities that had been registered for issuance that remain unsold at the termination of such offering, TransGlobe hereby removes from registration any and all of such securities that had been registered for issuance but remain unsold under the Registration Statements as of the date hereof, if any. The Registration Statements are hereby amended to reflect the deregistration of such securities.