EXHIBIT 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the use in this Registration Statement on Form S-1 of our report dated June12, 2006 relating to the financial statements of Constellation Energy Resources LLC and our report dated June12, 2006 relating to the financial statements of Everlast Energy LLC, which appear in such Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Baltimore, Maryland
June13, 2006