March 20, 2026 - 10-K/A: Annual report [Section 13 and 15(d), not S-K Item 405]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________________________________________________________________________

FORM 10-K/A

(Amendment No. 1)

(Mark One)


x			ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025


o			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number: 1-32167

__________________________________________________________________________________________________________

VAALCO Energy, Inc.

(Exact name of registrant as specified on its charter)

__________________________________________________________________________________________________________


Delaware			76-0274813
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)

2500 CityWest Blvd.

Suite 400

Houston, Texas 77042

(Address of principal executive offices) (Zip Code)

(Registrant’s telephone number, including area code): (713) 623-0801

Securities registered under Section 12(b) of the Exchange Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.10	EGY	New York Stock Exchange
Common Stock, par value $0.10	EGY	London Stock Exchange

Securities registered under Section 12(g) of the Exchange Act: None

__________________________________________________________________________________________________________

Indicate by check mark if the registrant is a well-known seasoned issuer as defined in Rule 405 of the Securities Act. Yes o No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15d of the Act. Yes o No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No o

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.

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company o

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 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report x

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. o

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

As of June 30, 2025, the aggregate market value of the voting and non-voting common equity of the registrant held by non-affiliates was approximately $366.0 million based on a closing price of $3.61 on June 30, 2025.

As of March 10, 2026, there were outstanding 104,258,253 shares of common stock, $0.10 par value per share, of the registrant.

Documents incorporated by reference: Portions of the definitive Proxy Statement of VAALCO Energy, Inc. relating to the Annual Meeting of Stockholders to be filed within 120 days after the end of the fiscal year covered by this Form 10-K, which are incorporated into Part III of this Form 10-K.

EXPLANATORY NOTE

On March 16, 2026, VAALCO Energy, Inc. (“Vaalco”) filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Original Form 10-K”). The purpose of this Amendment No. 1 to the Original Form 10-K (this “Amendment No. 1”) is to provide an updated Consent of Netherland, Sewell & Associates, Inc., Vaalco’s independent petroleum engineer, to correct a typographical error regarding one of the dates included in the original Consent of Netherland, Sewell & Associates, Inc. filed with the Original Form 10-K. No other items or disclosures in the Original Form 10-K are being amended and this Amendment No. 1 does not modify, amend or update in any way the financial or other disclosures as presented in the Original Form 10-K. This Amendment No. 1 does not reflect any events that may have occurred subsequent to the filing of the Original Form 10-K.

In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), this Amendment No. 1 contains new certifications by Vaalco’s principal executive officer and principal financial officer under Section 302 of the Sarbanes-Oxley Act of 2002, pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act, which are attached hereto; however, because this Amendment No. 1 does not include financial statements and does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4, and 5 of such certifications have been omitted. Similarly, because this Amendment No. 1 does not include financial statements, certifications under Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of 2002) have been omitted.

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) 3. Exhibits:

The following documents are filed as part of this Form 10-K/A.


Exhibit No.						Description of Exhibit
23.2						Consent of Netherland, Sewell & Associates, Inc. — Independent Petroleum Engineers.
31.1						Sarbanes-Oxley Section 302 certification of Principal Executive Officer.
31.2						Sarbanes-Oxley Section 302 certification of Principal Financial Officer.
101.INS						Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH						Inline XBRL Taxonomy Schema Document.


101.LAB						Inline XBRL Label Linkbase Document.
101.PRE						Inline XBRL Presentation Linkbase Document.
104						Cover Page Interactive Data File (formatted as Inline XBRL and Contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



VAALCO ENERGY, INC.
(Registrant)

By			/s/ George W.M. Maxwell
			George W.M. Maxwell
			Chief Executive Officer

Dated: March 20, 2026