The board of directors of the Company also appointed Robbin B. Adams as the Company's Executive Vice President and Chief Project Engineer, effective January 1, 2012. In connection with such appointment, the Company and Mr. Adams entered into an employment agreement, effective as of January 1, 2012. The term of Mr. Adams's employment agreement will continue until December 31, 2013, and for successive two year terms thereafter, unless terminated by either party upon 30 days notice prior to January 1 of the following year. Mr. Adams's compensation during the term of his employment, including base salary and any bonus compensation, will be determined by the compensation committee of the board of directors. The employment agreement is attached as Exhibit 99.2.

On December 8, 2011, the Company and Thomas T. McEntire, Vice President, Chief Financial Officer and Secretary of the Company, entered into an employment agreement, effective as of January 1, 2012. The term of Mr. McEntire's employment agreement will continue until December 31, 2013, and for successive two year terms thereafter, unless terminated by either party upon 30 days notice prior to January 1 of the following year. Mr. McEntire's compensation during the term of his employment, including base salary and any bonus compensation, will continue to be determined by the compensation committee of the board of directors. The employment agreement is attached as Exhibit 99.3.

Pursuant to their employment agreements, each of Messrs. Wheeler, Adams and McEntire is entitled to receive the severance benefits described below upon termination of his employment unless the termination (a) results from his death or disability, (b) is by the Company for Cause, or (c) is by the employee other than for Good Reason. "Cause" is defined to mean the employee's willful and continued failure to perform his duties after a demand for his performance of those duties or the employee's willfully engaging in gross misconduct materially and demonstrably injurious to the Company. "Good Reason" is defined to mean a demotion, a reduction in base salary, a relocation of the employee's base location of employment, the discontinuation of any employee benefit without comparable substitution, the failure of any successor of the Company to assume the employment agreement or a purported termination not in compliance with the employment agreement.

The severance benefits to which either Messr. Wheeler, Adams or McEntire would be entitled on termination would be an amount equal to the product of (a) his then-current annual salary plus the average of the bonus payments paid to the executive in respect of the three fiscal years preceding the fiscal year in which the termination occurs, multiplied by (b) two. The executive would also receive any relocation and indemnity payments to which he is entitled and remain unpaid at the time of termination, and will be indemnified for any applicable income, employment, excise or other tax or penalty imposed upon such severance payments by the Internal Revenue Code of 1986, as amended.

These payments would be due in a lump sum on the tenth day following the date of termination. The amounts paid are based on the salary rate in effect at the time of termination, unless the employee is terminating employment for Good Reason due to a reduction in salary, in which case the salary rate shall be the rate in effect prior to such reduction.

So long as Mr. Wheeler, Mr. Adams or Mr. McEntire is terminated without Cause, he is not required to perform any further agreement or action in order to receive these benefits. However, in connection with these employment agreements, each of Messrs. Wheeler, Adams and McEntire has agreed that he will not disclose or misappropriate any confidential information of the Company and that all intellectual property developed by either of Messrs. Wheeler, Adams or McEntire is the property of the Company.

Mr. Wheeler, 58, has been a design engineer with the Company since 1997. Prior to 1997, Mr. Wheeler worked for sixteen years as a design engineer at Input/Output, Inc. (now known as ION Geophysical Corp.).

Mr. Adams, 54, has been a design engineer with the Company since 1997. Prior to 1997, Mr. Wheeler worked for fifteen years as a design engineer at Input/Output, Inc. (now known as ION Geophysical Corp.).

For a description of the employment arrangements entered into with Messrs. Wheeler and Adams, please refer to the disclosure under Item 1.01 Entry into a Material Definitive Agreement above.