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| þ | ANNUAL REPORT      PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF      1934 |
|--------|------------------------------------------------------------------------------------------------|

| o | TRANSITION REPORT PURSUANT TO      SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF      1934 |
|---|----------------------------------------------------------------------------------------------------|

| Delaware(State      or other jurisdiction of incorporation ororganization)                    |   | 20–4745690(I.R.S.      Employer Identification No.) |
|-----------------------------------------------------------------------------------------------|--------|-----------------------------------------------------------|
|                                                                                          |   |                                                      |
| 1001      Fannin, Suite 800, Houston, Texas(Address      of principal executive offices) |   | 77002(Zip      Code)                                      |

| Common      Units Representing Limited PartnerInterests(Title      of each class) |   | NASDAQ      Stock Market LLC(Name      of each exchange on whichregistered) |
|-----------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------|

| Large      accelerated filer o |   | Accelerated      filer þ    |
|--------------------------------|--------|----------------------------------|
|                           |   |                             |
| Non-accelerated      filer o   |   | Smaller      reporting company o |

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| (a) | List of Documents filed as part      of this Report |
|-----|-----------------------------------------------------|

|  | (1) | Financial      Statements |
|--|-----|---------------------------|

|  | (2) | Financial Statement      Schedules |
|--|-----|------------------------------------|

|  | (3) | Exhibits |
|--|-----|----------|

|   | 2.1    | Purchase      and Sale Agreement by and among EV Properties, L.P. and Five States Energy      Company, LLC dated November 10, 2006 (Incorporated by reference from      Exhibit 2.1 to EV Energy Partners, L.P.’s current report on Form 8–K filed      with the SEC on November 17, 2006).                                                                                                                                                                                                                                                                                                                                                                |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.2    | Purchase      and Sale Agreement by and among EV Properties, L.P. and Five States Energy      Company, LLC dated November 10, 2006 (Incorporated by reference from      Exhibit 2.2 to EV Energy Partners, L.P.’s current report on Form 8–K filed      with the SEC on November 17, 2006).                                                                                                                                                                                                                                                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.3    | Purchase      and Sale Agreement between EV Properties, L.P. and EnerVest Energy      Institutional Fund IX, L.P. and EnerVest Energy Institutional Fund IX–WI,      L.P. dated January 9, 2007 (Incorporated by reference from Exhibit 2.1 to      EV Energy Partners, L.P.’s current report on Form 8–K filed with the SEC      on January 16, 2007).                                                                                                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.4    | Agreement      of Sale and Purchase by and among EnerVest Monroe Limited Partnership,      EnerVest Monroe Pipeline GP, L.C. and EnerVest Monroe Gathering, Ltd., as      Seller, and EnerVest Production Partners, Ltd, as Buyer, dated March 7,      2007 (Incorporated by reference from Exhibit 2.1 to EV Energy Partners      L.P.’s current report on Form 8–K filed with the SEC on March 14,      2007).                                                                                                                                                                                                                                           |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.5    | First      Amendment to Agreement of Sale and Purchase by and among EnerVest Monroe      Limited Partnership, EnerVest Monroe Pipeline GP, L.C., EnerVest      Production Partners, Ltd and EVPP GP, LLC dated March 29, 2007      (Incorporated by reference from Exhibit 2.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on April 4,      2007).                                                                                                                                                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.6    | Purchase      and Sale Agreement between Anadarko E&P Company LP and Kerr–McGee Oil      and Gas Onshore LP, as Seller, and EnerVest Energy Institutional Fund X–A,      L.P., EnerVest Energy Institutional Fund X–WI, L.P., EnerVest Energy      Institutional Fund XI–A, L.P., EnerVest Energy Institutional Fund XI–WI,      L.P., EnerVest Management Partners, Ltd., Wachovia Investment Holdings,      LLC and EV Properties, L.P. dated April 13, 2007 (Incorporated by      reference from Exhibit 2.3 to EV Energy Partners, L.P.’s quarterly report      on Form 10–Q filed with the SEC on August 14, 2007). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.7    | Asset      Purchase and Sale Agreement between Plantation Operating, LLC, as Seller,      and EV Properties, L.P., as Buyer, dated July 17, 2007 (Incorporated by      reference from Exhibit 2.5 to EV Energy Partners, L.P.’s quarterly report      on Form 10–Q filed with the SEC of November 14,  2007).                                                                                                                                                                                                                                                                                                                                              |

----

|   | 2.8    | Agreement      of Sale and Purchase between EnerVest Appalachia, L.P., as Seller, and      EnerVest Production Partners, Ltd., as Buyer, dated November 16, 2007      (Incorporated by reference from Exhibit 2.8 to EV Energy Partners, L.P.’s      annual report on Form 10–K filed with the SEC on March 14,      2008).                                                                                                                                                                                                                                                                        |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 2.9    | Purchase      and Sale Agreement between EV Properties, L.P. and EnerVest Energy      Institutional Fund IX, L.P. and EnerVest Energy Institutional Fund IX-WI,      L.P. dated August 11, 2008 (Incorporated by reference from Exhibit 2.1 to      EV Energy Partners L.P.’s current report on Form 8–k filed with the SEC on      November 10, 2008).                                                                                                                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 3.1    | First      Amended and Restated Partnership Agreement EV Energy Partners, L.P.      (Incorporated by reference from Exhibit 3.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 3.2    | First      Amended and Restated Partnership Agreement of EV Energy GP, L.P.      (Incorporated by reference from Exhibit 3.2 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 3.3    | Amended      and Restated Limited Liability Company Agreement of EV Management, LLC.      (Incorporated by reference from Exhibit 3.3 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 3.4    | First      Amendment dated April 15, 2008 to First Amended and Restated Partnership      Agreement of EV Energy Partners, L.P., effective as of January 1, 2007      (Incorporated by reference from Exhibit 3.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on April 18,      2008).                                                                                                                                                                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.1   | Omnibus      Agreement, dated September 29, 2006, by and among EnerVest Management      Partners, Ltd., EV Management, LLC, EV Energy GP, L.P., EV Energy      Partners, L.P., and EV Properties, L.P. (Incorporated by reference from      Exhibit 10.1 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.2   | Contract      Operating Agreement, dated September 29, 2006, by and among EnerVest      Operating, L.L.C. and EnerVest Production Partners, L.P. (Incorporated by      reference from Exhibit 10.2 to EV Energy Partners, L.P.’s current report      on Form 8–K filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                           |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.3   | Contract      Operating Agreement, dated September 29, 2006, by and among EnerVest      Operating, L.L.C. and CGAS Properties, L.P. (Incorporated by reference      from Exhibit 10.3 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | *10.4  | EV      Energy Partners, L.P. Long–Term Incentive Plan (Incorporated by reference      from Exhibit 10.4 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.5   | Contribution      Agreement, dated September 29, 2006, by and among EnerVest Management      Partners, Ltd., EVEC Holdings, LLC, EnerVest Operating, L.L.C., CGAS      Exploration, Inc., EV Investors, L.P., , EVCG GP LLC, CGAS Properties,      L.P., CGAS Holdings, LLC, EnCap Energy Capital Fund V, L.P., EnCap V-B      Acquisitions, L.P., EnCap Fund V, EV Management, LLC, EV Energy GP, L.P.,      and EV Energy Partners, L.P. (Incorporated by reference from Exhibit 10.5      to EV Energy Partners, L.P.’s current report on Form 8–K filed with the      SEC on October 5, 2006). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.6   | Credit      Agreement, dated September 29, 2006, by and among EV Properties, L.P. and      JPMorgan Chase Bank, N.A., as administrative agent for the lenders named      therein. (Incorporated by reference from Exhibit 10.6 to EV Energy      Partners, L.P.’s current report on Form 8–K filed with the SEC on October      5, 2006).                                                                                                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | *10.7  | Employment      Agreement, dated October 1, 2006, by and between EV Management, LLC and      Michael E. Mercer. (Incorporated by reference from Exhibit 10.7 to EV      Energy Partners, L.P.’s current report on Form 8–K filed with the SEC on      October 5, 2006).                                                                                                                                                                                                                                                                                                                            |

----

|   | *10.8  | Employment      Agreement, dated October 1, 2006, by and between EV Management, LLC and      Kathryn S. MacAskie. (Incorporated by reference from Exhibit 10.8 to EV      Energy Partners, L.P.’s current report on Form 8–K filed with the SEC on      October 5, 2006).                                                                                                                                        |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.9   | Purchase      Agreement, dated February 27, 2007, by and among EV Energy Partners, L.P.      and the Purchasers named therein (Incorporated by reference from Exhibit      10.1 to EV Energy Partners, L.P.’s current report on Form 8–K filed with      the SEC on February 28, 2007).                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.10  | Registration      Rights Agreement, dated February 27, 2007, by and among EV Energy      Partners, L.P. and the Purchasers named therein (Incorporated by reference      from Exhibit 10.2 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on February 28, 2007).                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.11  | Purchase      Agreement, dated June 1, 2007, by and among EV Energy Partners, L.P. and      the Purchasers named therein (Incorporated by reference from Exhibit 10.1      to EV Energy Partners, L.P.’s current report on Form 8–K filed with the      SEC on June 4, 2007).                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.12  | Registration      Rights Agreement, dated June 1, 2007, by and among EV Energy Partners,      L.P. and the Purchasers named therein (Incorporated by reference from      Exhibit 10.2 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on June 4, 2007).                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.13  | Amended      and Restated Credit Agreement dated as of October 1, 2007, among EV Energy      Partners, L.P., as Parent, EV Properties, L.P., as Borrower, and JPMorgan      Chase Bank, N.A., as administrative agent for the lenders named therein      (Incorporated by reference from Exhibit 10.13 to EV Energy Partners,      L.P.’s annual report on Form 10–K filed with the SEC on March 14,      2008). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.14  | First      Amendment dated August 28, 2008 to Amended and Restated Credit Agreement      (Incorporated by reference from Exhibit 10.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on September 4,      2008).                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.15  | Omnibus      Agreement Extension, dated December 17, 2008, by and between EnerVest,      Ltd. and EV Energy GP, L.P. (Incorporated by reference from Exhibit 10.15      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009).                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 21.1   | Subsidiaries      of EV Energy Partners, L.P. (Incorporated by reference from Exhibit 21.1      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009)                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 23.1   | Consent      of Cawley, Gillespie & Associates, Inc. (Incorporated by reference      from Exhibit 23.1 to EV Energy Partners, L.P.’s annual report on Form 10–K      filed with the SEC on March 13, 2009)                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 23.2   | Consent      of Deloitte & Touche LLP(Incorporated by reference from Exhibit 23.2      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009)                                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +31.1  | Rule 13a-14(a)/15d-14(a)      Certification of Chief Executive Officer.                                                                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +31.2  | Rule 13a-14(a)/15d-14(a)      Certification of Chief Financial Officer.                                                                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +32 .1 | Section 1350      Certification of Chief Executive Officer                                                                                                                                                                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +32.2  | Section      1350 Certification of Chief FinancialOfficer                                                                                                                                                                                                                                                                                                                                                                    |

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| EV      Energy Partners, L.P.                      |                           |
|----------------------------------------------------|--------------------------------|
| (Registrant)                                       |                           |
| Date:  June      10, 2009                |                           |
|                                               |                           |
| By:  /s/      MICHAEL E. MERCER          |                           |
|                 |       |
| Michael      E. Mercer                             |                           |
| Chief      Financial Officer of EV Management LLC, |                           |
| general      partner of EV Energy GP, L.P.,        |                           |
| general      partner of EV Energy Partners, L.P.   |                           |

----

|   | 2.1    | Purchase      and Sale Agreement by and among EV Properties, L.P. and Five States Energy      Company, LLC dated November 10, 2006 (Incorporated by reference from      Exhibit 2.1 to EV Energy Partners, L.P.’s current report on Form 8–K filed      with the SEC on November 17, 2006).                                                                                                                                                                                                                                                                                                                                                                |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.2    | Purchase      and Sale Agreement by and among EV Properties, L.P. and Five States Energy      Company, LLC dated November 10, 2006 (Incorporated by reference from      Exhibit 2.2 to EV Energy Partners, L.P.’s current report on Form 8–K filed      with the SEC on November 17, 2006).                                                                                                                                                                                                                                                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.3    | Purchase      and Sale Agreement between EV Properties, L.P. and EnerVest Energy      Institutional Fund IX, L.P. and EnerVest Energy Institutional Fund IX–WI,      L.P. dated January 9, 2007 (Incorporated by reference from Exhibit 2.1 to      EV Energy Partners, L.P.’s current report on Form 8–K filed with the SEC      on January 16, 2007).                                                                                                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.4    | Agreement      of Sale and Purchase by and among EnerVest Monroe Limited Partnership,      EnerVest Monroe Pipeline GP, L.C. and EnerVest Monroe Gathering, Ltd., as      Seller, and EnerVest Production Partners, Ltd, as Buyer, dated March 7,      2007 (Incorporated by reference from Exhibit 2.1 to EV Energy Partners      L.P.’s current report on Form 8–K filed with the SEC on March 14,      2007).                                                                                                                                                                                                                                           |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.5    | First      Amendment to Agreement of Sale and Purchase by and among EnerVest Monroe      Limited Partnership, EnerVest Monroe Pipeline GP, L.C., EnerVest      Production Partners, Ltd and EVPP GP, LLC dated March 29, 2007      (Incorporated by reference from Exhibit 2.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on April 4,      2007).                                                                                                                                                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.6    | Purchase      and Sale Agreement between Anadarko E&P Company LP and Kerr–McGee Oil      and Gas Onshore LP, as Seller, and EnerVest Energy Institutional Fund X–A,      L.P., EnerVest Energy Institutional Fund X–WI, L.P., EnerVest Energy      Institutional Fund XI–A, L.P., EnerVest Energy Institutional Fund XI–WI,      L.P., EnerVest Management Partners, Ltd., Wachovia Investment Holdings,      LLC and EV Properties, L.P. dated April 13, 2007 (Incorporated by      reference from Exhibit 2.3 to EV Energy Partners, L.P.’s quarterly report      on Form 10–Q filed with the SEC on August 14, 2007). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.7    | Asset      Purchase and Sale Agreement between Plantation Operating, LLC, as Seller,      and EV Properties, L.P., as Buyer, dated July 17, 2007 (Incorporated by      reference from Exhibit 2.5 to EV Energy Partners, L.P.’s quarterly report      on Form 10–Q filed with the SEC of November 14, 2007).                                                                                                                                                                                                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.8    | Agreement      of Sale and Purchase between EnerVest Appalachia, L.P., as Seller, and      EnerVest Production Partners, Ltd., as Buyer, dated November 16, 2007      (Incorporated by reference from Exhibit 2.8 to EV Energy Partners, L.P.’s      annual report on Form 10–K filed with the SEC on March 14,      2008).                                                                                                                                                                                                                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 2.9    | Purchase      and Sale Agreement between EV Properties, L.P. and EnerVest Energy      Institutional Fund IX, L.P. and EnerVest Energy Institutional Fund IX-WI,      L.P. dated August 11, 2008 (Incorporated by reference from Exhibit 2.1 to      EV Energy Partners L.P.’s current report on Form 8–k filed with the SEC on      November 10, 2008).                                                                                                                                                                                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 3.1    | First      Amended and Restated Partnership Agreement EV Energy Partners, L.P.      (Incorporated by reference from Exhibit 3.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | 3.2    | First      Amended and Restated Partnership Agreement of EV Energy GP, L.P.      (Incorporated by reference from Exhibit 3.2 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                                                                                    |

----

|   | 3.3    | Amended      and Restated Limited Liability Company Agreement of EV Management, LLC.      (Incorporated by reference from Exhibit 3.3 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on October 5,      2006).                                                                                                                                                                                                                                                                                                                                                   |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 3.4    | First      Amendment dated April 15, 2008 to First Amended and Restated Partnership      Agreement of EV Energy Partners, L.P., effective as of January 1, 2007      (Incorporated by reference from Exhibit 3.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on April 18,      2008).                                                                                                                                                                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.1   | Omnibus      Agreement, dated September 29, 2006, by and among EnerVest Management      Partners, Ltd., EV Management, LLC, EV Energy GP, L.P., EV Energy      Partners, L.P., and EV Properties, L.P. (Incorporated by reference from      Exhibit 10.1 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.2   | Contract      Operating Agreement, dated September 29, 2006, by and among EnerVest      Operating, L.L.C. and EnerVest Production Partners, L.P. (Incorporated by      reference from Exhibit 10.2 to EV Energy Partners, L.P.’s current report      on Form 8–K filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                           |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.3   | Contract      Operating Agreement, dated September 29, 2006, by and among EnerVest      Operating, L.L.C. and CGAS Properties, L.P. (Incorporated by reference      from Exhibit 10.3 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | *10.4  | EV      Energy Partners, L.P. Long–Term Incentive Plan (Incorporated by reference      from Exhibit 10.4 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on October 5, 2006).                                                                                                                                                                                                                                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.5   | Contribution      Agreement, dated September 29, 2006, by and among EnerVest Management      Partners, Ltd., EVEC Holdings, LLC, EnerVest Operating, L.L.C., CGAS      Exploration, Inc., EV Investors, L.P., , EVCG GP LLC, CGAS Properties,      L.P., CGAS Holdings, LLC, EnCap Energy Capital Fund V, L.P., EnCap V-B      Acquisitions, L.P., EnCap Fund V, EV Management, LLC, EV Energy GP, L.P.,      and EV Energy Partners, L.P. (Incorporated by reference from Exhibit 10.5      to EV Energy Partners, L.P.’s current report on Form 8–K filed with the      SEC on October 5, 2006). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.6   | Credit      Agreement, dated September 29, 2006, by and among EV Properties, L.P. and      JPMorgan Chase Bank, N.A., as administrative agent for the lenders named      therein. (Incorporated by reference from Exhibit 10.6 to EV Energy      Partners, L.P.’s current report on Form 8–K filed with the SEC on October      5, 2006).                                                                                                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | *10.7  | Employment      Agreement, dated October 1, 2006, by and between EV Management, LLC and      Michael E. Mercer. (Incorporated by reference from Exhibit 10.7 to EV      Energy Partners, L.P.’s current report on Form 8–K filed with the SEC on      October 5, 2006).                                                                                                                                                                                                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | *10.8  | Employment      Agreement, dated October 1, 2006, by and between EV Management, LLC and      Kathryn S. MacAskie. (Incorporated by reference from Exhibit 10.8 to EV      Energy Partners, L.P.’s current report on Form 8–K filed with the SEC on      October 5, 2006).                                                                                                                                                                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.9   | Purchase      Agreement, dated February 27, 2007, by and among EV Energy Partners, L.P.      and the Purchasers named therein (Incorporated by reference from Exhibit      10.1 to EV Energy Partners, L.P.’s current report on Form 8–K filed with      the SEC on February 28, 2007).                                                                                                                                                                                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.10  | Registration      Rights Agreement, dated February 27, 2007, by and among EV Energy      Partners, L.P. and the Purchasers named therein (Incorporated by reference      from Exhibit 10.2 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on February 28, 2007).                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|   | 10.11  | Purchase      Agreement, dated June 1, 2007, by and among EV Energy Partners, L.P. and      the Purchasers named therein (Incorporated by reference from Exhibit 10.1      to EV Energy Partners, L.P.’s current report on Form 8–K filed with the      SEC on June 4,2007).                                                                                                                                                                                                                                                                                                                       |

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|   | 10.12  | Registration      Rights Agreement, dated June 1, 2007, by and among EV Energy Partners,      L.P. and the Purchasers named therein (Incorporated by reference from      Exhibit 10.2 to EV Energy Partners, L.P.’s current report on Form 8–K      filed with the SEC on June 4, 2007).                                                                                                                         |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.13  | Amended      and Restated Credit Agreement dated as of October 1, 2007, among EV Energy      Partners, L.P., as Parent, EV Properties, L.P., as Borrower, and JPMorgan      Chase Bank, N.A., as administrative agent for the lenders named therein      (Incorporated by reference from Exhibit 10.13 to EV Energy Partners,      L.P.’s annual report on Form 10–K filed with the SEC on March 14,      2008). |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.14  | First      Amendment dated August 28, 2008 to Amended and Restated Credit Agreement      (Incorporated by reference from Exhibit 10.1 to EV Energy Partners, L.P.’s      current report on Form 8–K filed with the SEC on September 4,      2008).                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 10.15  | Omnibus      Agreement Extension, dated December 17, 2008, by and between EnerVest,      Ltd. and EV Energy GP, L.P. (Incorporated by reference from Exhibit 10.15      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009).                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 21.1   | Subsidiaries      of EV Energy Partners, L.P. (Incorporated by reference from Exhibit 21.1      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009)                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 23.1   | Consent      of Cawley, Gillespie & Associates, Inc. (Incorporated by reference      from Exhibit 23.1 to EV Energy Partners, L.P.’s annual report on Form 10–K      filed with the SEC on March 13, 2009)                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | 23.2   | Consent      of Deloitte & Touche LLP(Incorporated by reference from Exhibit 23.2      to EV Energy Partners, L.P.’s annual report on Form 10–K filed with the      SEC on March 13, 2009)                                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +31.1  | Rule 13a-14(a)/15d-14(a)      Certification of Chief Executive Officer.                                                                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +31.2  | Rule 13a-14(a)/15d-14(a)      Certification of Chief Financial Officer.                                                                                                                                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +32 .1 | Section 1350      Certification of Chief Executive Officer                                                                                                                                                                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                         |
|   | +32.2  | Section      1350 Certification of Chief FinancialOfficer                                                                                                                                                                                                                                                                                                                                                                    |

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