Exhibit 99.4 March 3, 2003 Robert L. Gerry, III 4600 Post Oak Place, Suite 309 Houston, Texas 77027 Dear Mr. Gerry: Reference is made to the Employment Agreement (the "Employment Agreement") dated August 1, 1997 by and between VAALCO Energy, Inc., a Delaware corporation (the "Company"), and Robert L. Gerry, III ("Executive"). The Company and the executive agree that Section 3.C of the Employment Agreement is hereby amended to permit Executive to pay the option price in cash or by tendering to the Company shares of Company common stock, par value $.10 per share, or any combination thereof. The common stock so tendered will be valued on the date of exercise by the board of directors of the Company in such manner as the board of directors shall deem appropriate. Except as explicitly amended by this letter, the terms, conditions, rights and obligations under the Employment Agreement shall remain in full force and effect. Very truly yours, VAALCO ENERGY, INC. By: __________________________ Name: _________________________ Title: ________________________ Accepted: _______________________________ Robert L. Gerry, III