Constellation Energy Partners LLC (NYSE Arca: CEP) announced today that it will host a conference call at 8:30 a.m. (CDT) on Friday, May 7, 2010 to discuss first quarter 2010 results. The company expects to release its first quarter 2010 earnings before the market opens that day. To participate in the conference call, analysts, investors, media and the public in the U.S. may dial (888) 810-6805 shortly before 8:30 a.m. (CDT). The international phone number is (517) 308-9398. The conference password is PARTNERS. A replay will be available beginning approximately one hour after the end of the call by dialing (866) 481-6892 or (203) 369-1571 (international). A live audio webcast of the conference call, presentation slides and the earnings release will be available on Constellation Energy Partners’ Web site ( www.constellationenergypartners.com) under the Investor Relations page. The call will also be recorded and archived on the site. Constellation Energy Partners LLC is a limited liability company focused on the acquisition, development and production of oil and natural gas properties, as well as related midstream assets.