Evolve Transition Infrastructure (SNMP) S-8 Registration of securities for employees

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of Constellation Energy Partners LLC of our report dated February 27, 2009, relating to the financial statements, management’s assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in the Annual Report on Form 10-K for the year ended December 31, 2008.

/s/ Pricewaterhouse Coopers LLP

Pricewaterhouse Coopers LLP

Houston, Texas

May 1, 2009