Exhibit 31.3

CERTIFICATION BY CHIEF EXECUTIVE OFFICER

PURSUANT TO RULES 13a-14(a) AND 15d-14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

(Section 302 of the Sarbanes-Oxley Act of 2002)

I, Richard F. Miles, certify that:

1.                                       I have reviewed this Amendment No. 1 to Annual Report on Form 10-K of Geokinetics Inc.

2.                                       Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.