EXECUTIVE VICE PRESIDENT SEPARATION AND SEVERANCE AGREEMENT

Exhibit 10.13 Addendum to Employment Agreement of Xxxxx Xxxxxx

EXECUTIVE VICE PRESIDENT SEPARATION AND SEVERANCE AGREEMENT

THIS SEPARATION AND SEVERANCE AGREEMENT (the "Severance Agreement") is made a part of that Employment Agreement (the "Employment Agreement"), entered into and effective as of the 9^th day of October, 2006, by and between XXXXX XXXXX XXXXXX, an individual resident of the State of Texas ("Executive"), and HYPERDYNAMICS CORPORATION, a Delaware corporation (the "Company").

W I T N E S S E T H:

WHEREAS, the Company desires to employ Executive and to provide for severance benefits under the terms and conditions set forth herein; and

WHEREAS, this Severance Agreement constitutes part of the Employment Agreement and is incorporated therein by reference and fully set forth therein.

COVENANTS

NOW, THEREFORE, in consideration of the premises, mutual promises contained herein, and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1. Certain Definitions. The following terms shall have the meanings set forth herein.

(a) "Administrator" shall mean the Company. The Company shall also be the "named fiduciary" hereunder. The Company shall have the authority to designate one or more of its officers, employees or directors to act on its behalf in administering this Severance Agreement.

(b) "Base Salary" shall mean Executive's regular pay at the time of termination. Base Salary shall not include bonus or incentive plans, overtime pay, relocation allowances or the value of any other benefits for which Executive may be eligible.

(c) "Good Reason" shall mean, without the express written consent of Executive, the occurrence of any of the following events unless such events are fully corrected within 30 days following written notification by Executive to the Company that he intends to terminate his employment hereunder for one of the reasons set forth below:

(i) a material breach by the Company of any provision of this Agreement, including, but not limited to, the assignment to Executive of any duties inconsistent with Executive's position in the Company or a material adverse alteration in the nature or status of Executive's responsibilities;

(ii) the Company's requiring the Executive to be based anywhere other than the metropolitan area where he currently works and resides; and

(iii) the occurrence of a "Change in Control" as defined below.

For purposes of this Agreement a "Change in Control" shall mean an event as a result of which: (i) any "person" (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934 (the "Exchange Act")), is or becomes the "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act, except that a person shall be deemed to have "beneficial ownership" of all securities that such person has the right to acquire, whether such right is exercisable immediately or only after the passage of time), directly or indirectly, of more than 50% of the total voting power of the voting stock of the Company; (ii) the Company consolidates with, or merges with or into another corporation or sells, assigns, conveys, transfers, leases or otherwise disposes of all or substantially all of its assets to any person, or any corporation consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which the outstanding voting stock of the Company is changed into or exchanged for cash, securities or other property, other than any such transaction where (A) the outstanding voting stock of the Company is changed into or exchanged for (i) voting stock of the surviving or transferee corporation or (ii) cash, securities (whether or not including voting stock) or other property, and (B) the holders of the voting stock of the Company immediately prior to such transaction own, directly or indirectly, not less than 50% of the voting power of the voting stock of the surviving corporation immediately after such transaction; or (iii) during any period of two consecutive years, individuals who at the beginning of such period constituted the Board of the Company (together with any new directors whose election by such Board or whose nomination for election by the stockholders of the Company was approved by a vote of 66-2/3% of the directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the Board of the Company then in office; or (iv) the Company is liquidated or dissolved or adopts a plan of liquidation, provided, however, that a Change in Control shall not include any going private or leveraged buy-out transaction which is sponsored by Executive or in which Executive acquires an equity interest materially in excess of his equity interest in the Company immediately prior to such transaction (each of the events described in (i), (ii), (iii) or (iv) above, except as provided otherwise by the preceding clause being referred to herein as a "Change in Control"). In the event of a sale of the assets or stock of the Company, the Executive shall have the option of electing to terminate his employment due to a Change in Control and receive such severance benefits or electing to remain employed under the terms of this Agreement, but not both. Executive's right to terminate his employment for Good Cause due to any "Change in Control" must be exercised within sixty (60) days after receiving written notice or his receiving actual knowledge of such Good Cause.

(d) Cause shall mean:

(i) fraud, misappropriation, embezzlement, or other act of material misconduct against the Company or any of its affiliates;

(ii) substantial and willful failure to perform specific and lawful directives of the Board;

(iii) willful and knowing violation of any rules or regulations of any governmental or regulatory body, which is materially injurious to the financial condition of the Company; or

(iv) conviction of or plea of guilty or nolo contendere to a felony;

(v) a material breach of the terms and conditions of this Agreement: provided, however, that with regard to subparagraphs (ii) and (v) above, Executive may not be terminated for Cause unless and until the Board has given him reasonable written notice of its intended actions and specifically describing the alleged events, activities or omissions giving rise thereto and with respect to those events, activities or omissions for which a cure is possible, a reasonable opportunity to cure such breach; and provided further, however, that for purposes of determining whether any such Cause is present, no act or failure to act by Executive shall be considered "willful" if done or omitted to be done by Executive in good faith and in the reasonable belief that such act or omission was in the best interest of the Company and/or required by applicable law.

(e) Disability shall mean that as a result of Executive's incapacity due to physical or mental illness (as determined in good faith by a physician acceptable to the Company and Executive), Executive shall have been absent from the full-time performance of his duties with the Company for 120 consecutive days during any twelve (12) month period or if a physician acceptable to the Company and Executive advises the Company that it is likely that Executive will be unable to return to the full-time performance of his duties for 120 consecutive days during the succeeding twelve (12) month period.

2. Responsibility for Benefits. The Company will pay the entire cost of all benefits provided under this Severance Agreement, solely from its general assets. The benefits made available by this Severance Agreement are "unfunded," and Executive is not required or permitted to make any contribution with respect to this Severance Agreement.

3. Payment of Benefits. In the event Executive's employment is terminated (a) by the Company other than for Cause, Disability or Death or (b) by Executive for Good Reason (as defined herein), Executive shall receive the following severance benefits upon his satisfaction of the condition in paragraph 4 hereof:

His Base Salary during the period commencing on the effective date of such termination and ending one (1) year later (the "Salary Continuation Period"), as if Executive were still employed during the Salary Continuation Period; and

4. Conditions to Receipt of Benefits. Upon the occurrence of an event described in Section 3 above, Executive will be eligible for severance benefits to begin immediately.

5. Termination Events Not Covered. Notwithstanding anything to the contrary contained herein, the Company shall not pay Executive severance benefits under this Severance Agreement if:

(a) Executive terminates his employment with Company for a reason other than Good Reason as defined herein; or

(b) Executive revokes his agreement to release the Company from any and all claims related to his employment pursuant to the Settlement Agreement and Release executed.

6. How Severance Benefits Are Paid. The Company will pay severance benefits in installments through the Company's regular payroll procedure according to Executive's pay schedule at the time of termination of employment; provided however, the Administrator shall have the discretion to cause the Company to pay all severance benefits in a lump sum payment. Executive's severance benefits shall be subject to mandatory withholding, including federal, state and local income taxes, as well as FICA and withholding.

7. Additional Information Regarding this Severance Agreement.

(a) This Severance Agreement shall not be amended except by a written agreement executed by Executive and by an authorized officer of the Company (other than Executive).

(b) The Employment Agreement and this Severance Agreement provides the sole and exclusive agreement concerning severance benefits for Executive in the event of a termination and replaces any and all prior plans, policies and practices relating to severance pay that may exist now or may have existed in the past.

(c) To the extent not preempted by ERISA, the Employment Agreement and this Severance Agreement shall be governed by and construed according to the laws of the state of Texas.

(d) If a provision of this Severance Agreement shall be held illegal or invalid, the legality or invalidity shall not affect the remaining provisions of this Severance Agreement, and this Severance Agreement shall be construed and enforced as if the illegal or invalid provision had not been included.

(e) Executive acknowledges that no representation, promise or inducement has been made other than as set forth in the Employment Agreement and this Severance Agreement, and that he does not enter into this Employment Agreement and Severance Agreement in reliance upon any representation, promise or inducement not set forth herein and the Employment Agreement. The Employment Agreement and this Severance Agreement supersedes all prior negotiations and understandings of any kind with respect to the subject matter and contains all of the terms and provisions of the agreement between Executive and the Company with respect to the subject matter hereof. Any representation, promise or condition, whether written or oral, not specifically incorporated herein, shall be of no binding effect.

Agent For Service of Legal Process:   HYPERDYNAMICS CORPORATION

Attention: Secretary

IN WITNESS WHEREOF, the parties hereto have executed this Severance Agreement as of the date first set forth above.

EXECUTIVE:		COMPANY:
By: /s/ Xxxx X. Xxxxx		By: /s/ Xxxxx X. Xxxxxx
EXECUTIVE		HYPERDYNAMICS CORPORATION
Xxxxx X. Xxxxxx		Xxxx X. Xxxxx
Executive Vice President		Chief Executive Officer