X0306 4 2012-12-12 0 0001361937 EV Energy Partners, LP EVEP 0001181757 PETERSEN GARY R 1100 LOUISIANA SUITE 4900 HOUSTON TX 77002 1 0 0 0 Class B Units 2012-12-12 4 J 0 513607 0 D 0 I by EnCap Energy Capital Fund V, L.P. Class B Units 2012-12-12 4 J 0 406315 0 D 0 I By EnCap V-B Acquisitions, L.P. Common Units 2012-12-12 4 J 0 513607 0 A 515699 I By EnCap Energy Capital Fund V, L.P. Common Units 2012-12-12 4 J 0 406315 0 A 407972 I By EnCap V-B Acquisitions, L.P. Upon the election of EnCap Energy Capital Fund V, L.P. and EnCap V-B Acquisitions, L.P. on December 12, 2012, the Class B Units were converted on a unit for unit basis into Common Units. Gary R. Petersen may be deemed the beneficial owner of securities held by EnCap Energy Capital Fund V, L.P. and EnCap V-B Acquisitions, L.P. by virtue of being a member of RNBD GP, LLC, the sole member of EnCap Investments GP, LLC, the general partner of EnCap Investments, L.P., the general partner of EnCap Equity Fund V GP, L.P., (i) the general partner of EnCap Energy Capital Fund V, L.P., and (ii) the general partner of EnCap Energy Capital Fund V-B, L.P., the sole member of EnCap V-B Acquisitions GP, LLC, the general partner of EnCap V-B Acquisitions, L.P. Mr. Petersen disclaims beneficial ownership in excess of his pecuniary interest in such securities. This report is filed in connection with the Forms 4 filed today by EnCap Energy Capital Fund V, L.P., EnCap Equity Fund V GP, L.P., EnCap V-B Acquisitions, L.P., EnCap V-B Acquisitions GP, LLC, EnCap Energy Capital Fund V-B, L.P., EnCap Investments, L.P., EnCap Investments GP, L.L.C., RNBD GP, LLC, David B. Miller, D. Martin Phillips and Robert L. Zorich. /s/ Gary R. Petersen 2012-12-14