General Counsel Employment Letter Agreement

Exhibit 10.22


500 Dallas, Suite 3300

Houston, TX 77002

December 31, 2008

Ms. Lisa J. Mellencamp

2508 Reba Drive

Houston, Texas 77019

Dear Lisa:

We are pleased to confirm to you our offer of employment as General Counsel and Secretary of Constellation Energy Partners LLC (the " Company" ), effective January 1, 2009. A summary of the key terms of your compensation package are provided in Exhibit A hereto. We anticipate finalizing the terms of your employment in an employment agreement (the " Definitive Agreement" ) to be entered into in early 2009. Upon our execution of the Definitive Agreement, the precise terms of your employment will be subject in all cases to the terms and conditions of the Definitive Agreement.

In joining the Company, we recognize that you retain the option, as does the Company, of ending your employment at any time, with or without notice and with or without cause. As such, your employment will be at-will, and neither this letter nor any other oral or written representations may be considered a contract requiring the Company or you to maintain your employment for any specific period of time. While the parties will have this freedom to terminate your employment, the Company recognizes that certain terminations will have specific consequences under the terms of your employment, in each case as initially described in this letter and, upon execution by the Company and you of the Definitive Agreement, as provided in the Definitive Agreement. In addition, except where state law prohibits, the Company maintains a random drug testing program to which you will be expected to submit as a condition of continued employment.

This offer of employment is contingent on your execution and return to us of this offer letter.

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