VAALCO ENERGY INC /DE/

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

Our management, including our Principal Executive Officer and Principal Financial Officer, have evaluated the effectiveness of our disclosure controls and procedures pursuant to Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this report. Based on the evaluation of our disclosure controls and procedures, our Principal Executive Officer and Principal Financial Officer have concluded that, as a result of material weaknesses in our internal control over financial reporting identified in connection with the preparation and audit of our consolidated financial statements for the year ended December 31, 2024, our disclosure controls and procedures were not effective as of June 30, 2025.

MATERIAL WEAKNESS IN INTERNAL CONTROL OVER FINANCIAL REPORTING

As previously disclosed in Part II, Item 9A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, Management previously identified the following material weaknesses in internal control over financial reporting.

•The Company had ineffective general information technology controls (“GITCs”) that support the consistent operation of the Company’s information technology (“IT”) systems, specific to its procure-to-pay system. As a result, automated process-level controls and manual controls dependent upon the accuracy and completeness of information derived from that IT system were also ineffective because they could have been adversely impacted; and

•The Company did not effectively design, implement, or operate process-level control activities related to its financial reporting process, specific to its procure-to-pay process.

After giving full consideration to the material weakness, and the additional analyses and other procedures we performed to ensure that our unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q were prepared in accordance with GAAP, our management has concluded that our unaudited condensed consolidated financial statements present fairly, in all material respects, our financial position, results of operations and cash flows for the periods disclosed in conformity with GAAP. We have developed and are implementing a remediation plan for the material weakness, which is described below.

MANAGEMENT’S PLAN FOR REMEDIATION OF THE MATERIAL WEAKNESS

As previously described in Part II, Item 9A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, we began implementing a remediation plan to address the material weaknesses mentioned above. The material weaknesses will not be considered remediated until the applicable controls operate for a sufficient period of time and management has concluded, through testing, that these controls are operating effectively.

Although we intend to complete the remediation process as promptly as possible, we cannot at this time estimate how long it will take to remediate the material weaknesses described above. We may discover additional material weaknesses that require additional time and resources to remediate, and we may decide to take additional measures to address the material weaknesses or modify the remediation steps described above.

In addition, while certain of the activities described above have continued to enhance our internal control over financial reporting, certain of these newly designed controls have not operated effectively for a sufficient period of time to be able to conclude on effectiveness. We remain committed to continue investing significant time and resources and taking actions to remediate the material weaknesses in our internal control over financial reporting as we work to further enhance our control environment. Until these material weaknesses are remediated, we plan to continue to perform additional analyses and other procedures to ensure that our consolidated financial statements are prepared in accordance with U.S. GAAP.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

Except for the activities taken related to the remediation of the material weaknesses described above, there have been no changes in our internal control over financial reporting during the three months ended June 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.