Common use of Counterpart Executions Clause in Contracts

Counterpart Executions. This Agreement may be signed in counterparts, and shall be binding upon the PARTIES and upon their successors, representatives and assigns. GRYPHON EXPLORATION COMPANY BY: /s/ Charles H. Odom ------------------------------------ Charles H. Odom Vice Prexxxxxx-Xxxx MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VICE XXXXXXXXX STATE OF Texas COUNTY OF Harris ON THIS 9th day of Septembxx, 0000, xxxxxx xx xxxxxxxx X.X. Odom, to me personally known, who, being by me duly sworx, xxx xxy that he is the Vice President for Gryphon Exploration Company, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Odom acknowledges said instrument to be a free act and deed xx xxxx xorporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wanda X. Xxxxxx DECEMBER 6, 2007 ------------------------------------- ---------------------------- Notary Public in and for State of Texas STATE OF TEXAS COUNTY OF HARRIS ON THIS 9th day of September, 2004, before me appeared W. XXXX TABOR, to me personally known, who, being by me duly sworx, xxx xxy that he is the Vice President for RIDGEWOOD ENERGY CORPORATION, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said W. GREG TABOR acknowledges said instrument to be a free act and deed of xxxx xxxxoration. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ Mexxxxxx X. Xxxxxx June 16, 2005 ------------------------------------- ------------------------------ Notary Public in and for STATE OF COUNTY OF ON THIS ____ day of _________, 2004, before me appeared ___________, to me personally known, who, being by me duly sworn, did say that he is the ____________ for ________________, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said __________ acknowledges said instrument to be a free act and deed of said corporation. ------------------------------------- Notary Public in and for If fewer than all PARTIES elect to participate in the Acquisition within the AMI, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition, in writing, of the elections made. Each PARTY receiving notice, within forty-eight (48) hours (inclusive of Saturday, Sunday or legal holidays) after receipt of such notice, shall advise the Acquiring PARTY of its desire to (a) limit participation to its WORKING INTEREST, or (b) acquire its proportionate share of the interest of the non-participating PARTY(IES), or (c) participate for a percentage of the interest of the non-participating PARTY(IES). The interest of any PARTY who elects to participate in any acquisition within the AMI shall be subject to and be burdened by the obligations set forth on Exhibit "A" with respect to the leases.

Counterpart Executions. This Agreement may be signed in counterparts, and shall be binding upon the PARTIES and upon their successors, representatives and assigns. GRYPHON EXPLORATION COMPANY BY: /s/ Charles H. Odom ------------------------------------ --------------------------------- Charles H. Odom Vice PrexxxxxxXxxxxxxxx-Xxxx MARINER ENERGY, INC. BY: ------------------------------------ /s/ Mike C. van den Bold --------------------------------- NAME: ---------------------------------- TITLEMike C. van den Bold TITXX: --------------------------------- Xxxe President - Exploration RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ --------------------------------- NAME: W. GREG TABOR ------------------------------- TITLE: EXEC. VICE XXXXXXXXX ------------------------------ STATE OF Texas COUNTY OF Harris ON THIS 9th day of SeptembxxSeptexxxx, 0000, xxxxxx xx xxxxxxxx X.X. X.X Odom, to me personally known, who, being by me duly sworx, xxx xxy xay that he is the Vice President for Gryphon Exploration Company, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Odom acknowledges said instrument to be a free act and deed xx xxxx xorporationcorporation. ---------------------------- ------------------------------ WANDA L. MARTIN [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wanda Wandx X. Xxxxxx DECEMBER 6, 2007 ------------------------------------- ---------------------------- ------------------------------ Notary Public in and for State of Texas STATE OF TEXAS COUNTY OF HARRIS ON THIS 9th 9TH day of SeptemberSEPTEMBER, 2004, before me appeared W. XXXX TABORMIKX X. XAN DEN BOLD, to me personally known, who, being by me duly sworxduxx xxxxn, xxx xxy did say that he is the Vice President VICE PRESIDENT for RIDGEWOOD MARINER ENERGY CORPORATION, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said W. GREG TABOR MIKE C. VAN DEN BOLD acknowledges said instrument to be a free act and deed acx xxx xeed of xxxx xxxxorationsaid corporation. ------------------------------ MERCEDES S. ZUNIGA ------------------------------------ SUSAN G. EDWARDS [SEAL] NOTARY PUBLIC, STATE OF TEXAS MY COMMISSION EXPIRES XXXXXXXXXX XXXXRES /s/ Mexxxxxx X. Xxxxxx June 16Susan G. Edwards SEPT. 2, 2005 2007 ------------------------------------- ------------------------------ ------------------------------------ Notary Public in and for State of Texas STATE OF COUNTY OF ON THIS ____ day of _________, 2004, before me appeared ___________, to me personally known, who, being by me duly sworn, did say that he is the ____________ for ________________, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said _________________ acknowledges said instrument to be a free act and deed of said corporation. ------------------------------------- Notary Public in and for If fewer than all PARTIES elect to participate in the Acquisition within the AMI, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition, in writing, of the elections made. Each PARTY receiving notice, within forty-eight (48) hours (inclusive of Saturday, Sunday or legal holidays) after receipt of such notice, shall advise the Acquiring PARTY of its desire to (a) limit participation to its WORKING INTEREST, or (b) acquire its proportionate share of the interest of the non-participating PARTY(IES), or (c) participate for a percentage of the interest of the non-participating PARTY(IES). The interest of any PARTY who elects to participate in any acquisition within the AMI shall be subject to and be burdened by the obligations set forth on Exhibit EXHIBIT "A" with respect Attached to the leasesand made a part of that certain Joint Operating Agreement dated effective August 1, 2004 by and between GRYPHON EXPLORATION COMPANY, as Operator, and MARINER ENERGY, INC., et al, as Non-Operators OIL AND GAS LEASES:

Counterpart Executions. This Agreement may be signed in counterparts, and shall be binding upon the PARTIES and upon their successors, representatives and assigns. GRYPHON EXPLORATION COMPANY BY: /s/ Charles H. Odom ------------------------------------ Charles H. Odom Vice PrexxxxxxPrxxxxxxx-Xxxx MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VICE XXXXXXXXX VICX XXXXXXXXT STATE OF Texas COUNTY OF Harris ON THIS 9th day of SeptembxxSeptemxxx, 0000, xxxxxx xx xxxxxxxx X.X. Odom, to me personally known, who, being by me duly sworxswoxx, xxx xxy xay that he is the Vice President for Gryphon Exploration Company, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Odom acknowledges said instrument to be a free act and deed xx xxxx xorporationcorporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wanda Wandx X. Xxxxxx DECEMBER 6, 2007 ------------------------------------- ---------------------------- Notary Public in and for State of Texas STATE OF TEXAS COUNTY OF HARRIS ON THIS 9th day of September, 2004, before me appeared W. XXXX X. XXXG TABOR, to me personally known, who, being by me duly sworxswoxx, xxx xxy xay that he is the Vice President for RIDGEWOOD ENERGY CORPORATION, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said W. GREG TABOR acknowledges said instrument to be a free act and deed of ox xxxx xxxxorationxxxporation. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ Mexxxxxx Mxxxxxxx X. Xxxxxx June 16, 2005 ------------------------------------- ------------------------------ Notary Public in and for STATE OF COUNTY OF ON THIS ____ day of _________, 2004, before me appeared ___________, to me personally known, who, being by me duly sworn, did say that he is the ____________ for ________________, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said __________ acknowledges said instrument to be a free act and deed of said corporation. ------------------------------------- Notary Public in and for If fewer than all PARTIES elect to participate in the Acquisition within the AMI, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition, in writing, of the elections made. Each PARTY receiving notice, within forty-eight (48) hours (inclusive of Saturday, Sunday or legal holidays) after receipt of such notice, shall advise the Acquiring PARTY of its desire to (a) limit participation to its WORKING INTEREST, or (b) acquire its proportionate share of the interest of the non-participating PARTY(IES), or (c) participate for a percentage of the interest of the non-participating PARTY(IES). The interest of any PARTY who elects to participate in any acquisition within the AMI shall be subject to and be burdened by the obligations set forth on Exhibit "A" with respect to the leases.

Counterpart Executions. This Agreement may be signed in counterparts, and shall be binding upon the PARTIES and upon their successors, representatives and assigns. GRYPHON EXPLORATION COMPANY BY: /s/ Charles H. Odom ------------------------------------ --------------------------------- Charles H. Odom Vice PrexxxxxxXxxxxxxxx-Xxxx MARINER ENERGY, INC. BY: ------------------------------------ /s/ Mike C. van den Bold --------------------------------- NAME: ---------------------------------- TITLEMike C. van den Bold TITLX: --------------------------------- Xxxx President - Exploration RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ --------------------------------- NAME: W. GREG TABOR ------------------------------- TITLE: EXEC. VICE XXXXXXXXX ------------------------------ STATE OF Texas COUNTY OF Harris ON THIS 9th day of SeptembxxSeptemxxx, 0000, xxxxxx xx xxxxxxxx X.X. X.X Odom, to me personally known, who, being by me duly sworxsworn, xxx xxy that he is the Vice President for Gryphon Exploration Company, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Odom acknowledges said instrument to be a free act and deed xx xxxx xorporation. ---------------------------- ------------------------------ WANDA L. MARTIN [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wanda X. Xxxxxx DECEMBER 6, 2007 ------------------------------------- ---------------------------- ------------------------------ Notary Public in and for State of Texas STATE OF TEXAS COUNTY OF HARRIS ON THIS 9th 9TH day of SeptemberSEPTEMBER, 2004, before me appeared W. XXXX TABORMIKE X. XXN DEN BOLD, to me personally known, who, being by me duly sworxdulx xxxxx, xxx xxy did say that he is the Vice President VICE PRESIDENT for RIDGEWOOD MARINER ENERGY CORPORATION, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said W. GREG TABOR MIKE C. VAN DEN BOLD acknowledges said instrument to be a free act and deed xxx xxed of xxxx xxxxorationsaid corporation. ------------------------------ MERCEDES S. ZUNIGA ------------------------------------ SUSAN G. EDWARDS [SEAL] NOTARY PUBLIC, STATE OF TEXAS MY COMMISSION EXPIRES XXXXXXXXXX XXXXXES /s/ Mexxxxxx X. Xxxxxx June 16Susan G. Edwards SEPT. 2, 2005 2007 ------------------------------------- ------------------------------ ------------------------------------ Notary Public in and for State of Texas STATE OF COUNTY OF ON THIS ____ day of _________, 2004, before me appeared ___________, to me personally known, who, being by me duly sworn, did say that he is the ____________ for ________________, and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said _________________ acknowledges said instrument to be a free act and deed of said corporation. ------------------------------------- Notary Public in and for If fewer than all PARTIES elect to participate in the Acquisition within the AMI, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition, in writing, of the elections made. Each PARTY receiving notice, within forty-eight (48) hours (inclusive of Saturday, Sunday or legal holidays) after receipt of such notice, shall advise the Acquiring PARTY of its desire to (a) limit participation to its WORKING INTEREST, or (b) acquire its proportionate share of the interest of the non-participating PARTY(IES), or (c) participate for a percentage of the interest of the non-participating PARTY(IES). The interest of any PARTY who elects to participate in any acquisition within the AMI shall be subject to and be burdened by the obligations set forth on Exhibit EXHIBIT "A" with respect Attached to the leasesand made a part of that certain Joint Operating Agreement dated effective August 1, 2004 by and between GRYPHON EXPLORATION COMPANY, as Operator, and MARINER ENERGY, INC., et al, as Non-Operators OIL AND GAS LEASES: