UNITED STATES OF AMERICA c/o Department of Justice Washington, D.C. 20530,                       Plaintiff,                   v. INPUT/OUTPUT, INC. 11104 West Airport Blvd., Suite 200    Stafford, TX 77477-2416, and THE LAITRAM CORPORATION 220 Laitram Lane Harahan, LA 70123                   Defendants.

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Civil Action No. 99 0912

It is stipulated by and between the undersigned parties, by then- respective attorneys, that:

(1) the parties consent that the Court may file and enter a Final Judgment in the form attached to this Stipulation, on the Court's own motion or on the motion of any party at any time, and without further notice to any party or other proceedings, if Plaintiff has not withdrawn its consent, which it may do at any time before the entry of judgment by serving notice of its withdrawal on Defendants, The Laitram Corporation and Input/Output, Inc., and filing that notice with the Court;

(2) Defendants, The Laitram Corporation and Input/Output, Inc., waive any objection to venue or jurisdiction for purposes of this Final Judgment and authorize their respective attorneys, Paul T. Denis of Arnold & Porter and Ronald Breaux of Haynes and Boone, L.L.P., to accept service of all process in this matter on their behalf; and

(3) in the event Plaintiff withdraws its consent or if the proposed Final Judgment is not entered pursuant to this Stipulation, this Stipulation shall be of no effect whatever and the making of this Stipulation shall be without prejudice to any party in this or any other proceeding.

Dated: 4/9/99

FOR THE DEFENDANTS:

_______________/s/________________ Ronald Breaux, Esq. Haynes and Boone, L.L.P. 1000 Louisiana Street, Suite 4300 101 Main Street, Suite 3100 Houston, TX 77002-5012 Dallas, TX 75202 Counsel for Input/Output, Inc.

_______________/s/________________ Paul T. Denis, Esq. Arnold & Porter 555 Twelfth Street, NW Washington, D.C. 20004-1202 Counsel for The Laitram Corporation

FOR THE PLAINTIFF:

_______________/s/________________ Joel I. Klein Assistant Attorney General _______________/s/________________ Constance K. Robinson Director of Merger Enforcement _______________/s/________________ Jack Sidorov Attorney Department of Justice Antitrust Division Washington, D.C. 20530 (202) 524-2401

_______________/s/________________ William J. Baer Director _______________/s/________________ Daniel Ducore D.C. Bar No. 933721 Deputy Assistant Director _______________/s/________________ Kenneth M. Davidson D.C. Bar No. 970772 Attorney _______________/s/________________ Cathy Moscatelli D.C. Bar No. 418518 Attorney _______________/s/________________ Angela M. Dusenbury Law Clerk Bureau of Competition Federal Trade Commission 6th Street and Pennsylvania Ave. N.W. Washington, D.C. 20580 (202) 326-2687