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 Pr▇▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T STATE OF Texas COUNTY OF Harris ON THIS 9th day of Septem▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇. Odom, to me personally known, who, being by me duly swo▇▇, ▇▇▇ ▇ay 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 ▇▇ ▇▇▇▇ corporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ ▇. ▇▇▇▇▇▇ 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 ▇. ▇▇▇G TABOR, to me personally known, who, being by me duly swo▇▇, ▇▇▇ ▇ay 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 o▇ ▇▇▇▇ ▇▇▇poration. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ 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 Pr▇▇▇▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ /s/ Mike C. van den Bold --------------------------------- NAME: ---------------------------------- TITLEMike C. van den Bold TIT▇▇: --------------------------------- ▇▇▇e President - Exploration RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ --------------------------------- NAME: W. GREG TABOR ------------------------------- TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T ------------------------------ STATE OF Texas COUNTY OF Harris ON THIS 9th day of SeptemSepte▇▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇. ▇ Odom, to me personally known, who, being by me duly swo▇swor▇, ▇▇▇ ▇ay 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 ▇▇ ▇▇▇▇ corporation. ---------------------------- ------------------------------ WANDA L. MARTIN [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ ▇. ▇▇▇▇▇▇ 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 MIK▇ ▇. ▇▇▇G TABORAN DEN BOLD, to me personally known, who, being by me duly swo▇▇, ▇du▇▇ ▇ay ▇▇▇n, 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 oac▇ ▇▇▇▇ ▇▇▇porationeed of said corporation. ------------------------------ MERCEDES S. ZUNIGA ------------------------------------ SUSAN G. EDWARDS [SEAL] NOTARY PUBLIC, STATE OF TEXAS MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ June 16RES /s/ Susan 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 Pr▇Pre▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VIC▇ VICE ▇▇▇▇▇▇▇▇T ▇ STATE OF Texas COUNTY OF Harris ON THIS 9th day of Septem▇Septemb▇▇, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇. Odom, to me personally known, who, being by me duly swo▇swor▇, ▇▇▇ ▇ay ▇y 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 ▇▇ ▇▇▇▇ corporation▇orporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ Wanda ▇. ▇▇▇▇▇▇ 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. ▇▇▇G ▇ TABOR, to me personally known, who, being by me duly swo▇swor▇, ▇▇▇ ▇ay ▇y 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 o▇ of ▇▇▇▇ ▇▇▇poration▇oration. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ M▇Me▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ 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 Pr▇▇▇▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ /s/ Mike C. van den Bold --------------------------------- NAME: ---------------------------------- TITLEMike C. van den Bold TITL▇: --------------------------------- ▇▇▇▇ President - Exploration RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ --------------------------------- NAME: W. GREG TABOR ------------------------------- TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T ------------------------------ STATE OF Texas COUNTY OF Harris ON THIS 9th day of Septem▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇. ▇ Odom, to me personally known, who, being by me duly swo▇▇sworn, ▇▇▇ ▇ay ▇y 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 ▇▇ ▇▇▇▇ corporation▇orporation. ---------------------------- ------------------------------ WANDA L. MARTIN [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ Wanda ▇. ▇▇▇▇▇▇ 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 MIKE ▇. ▇▇▇G TABORN DEN BOLD, to me personally known, who, being by me duly swodul▇ ▇▇▇▇▇, ▇▇▇ ▇ay 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 o▇ ▇▇▇▇ ▇▇▇porationed of said corporation. ------------------------------ MERCEDES S. ZUNIGA ------------------------------------ SUSAN G. EDWARDS [SEAL] NOTARY PUBLIC, STATE OF TEXAS MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ June 16ES /s/ Susan 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 Pr▇▇▇▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T [Illegible] ---------------------------------- STATE OF Texas TEXAS COUNTY OF Harris HARRIS ON THIS 9th ___ day of Septem▇▇▇___________, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇▇▇▇▇▇ ▇. Odom, to me personally known, who, being by me duly swo▇▇▇▇▇, ▇▇▇ ▇ay ▇y that he is the Vice President - Land for Gryphon Exploration Company, Company and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Charles H. Odom acknowledges said instrument to be a free act and deed ▇▇▇▇ ▇▇ ▇▇▇▇ corporation▇orporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ ▇. ▇▇▇▇▇▇ DECEMBER 6, 2007 ------------------------------------- ---------------------------- ------------------------------------------- Notary Public in and for the State of Texas STATE OF TEXAS COUNTY OF HARRIS ON THIS 9th day of September, 2004, before me appeared ▇. ▇▇▇G TABOR, to me personally known, who, being by me duly swo▇▇, ▇▇▇ ▇ay 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 o▇ ▇▇▇▇ ▇▇▇poration. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ June 16, 2005 ------------------------------------- ------------------------------ Notary Public in and for STATE OF COUNTY OF ON THIS THIS____ day of _____________, 2004, before me appeared ___________me, to me personally known, who, being by me duly duty sworn, did say that he is the _____________ for of ________________, _ and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directorscorporation, 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 the State of Texas Notary page to participate in the Acquisition within the AMIJoint Operating Agreement dated May 25, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition2004 covering West Cameron Area, 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 leasesBlock 103.

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 Pr▇▇▇▇▇▇▇President-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- Land RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor [Illegible] ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T STATE OF Texas TEXAS COUNTY OF Harris ON THIS 9th day of Septem▇▇▇, ▇▇▇▇, ▇▇▇HAR▇▇▇ ▇▇ ▇▇▇▇▇___▇▇▇ ▇.▇. ___________, ▇▇▇▇, before me appeared Charles H. Odom, to me personally known, who, being by me duly swo▇▇▇▇▇, ▇▇▇ ▇ay , ▇eing by me duly sworn, did say that he is the Vice President - Land for Gryphon Exploration Company, Company and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Charles H. Odom acknowledges said instrument to ▇▇▇▇▇▇▇▇▇▇ ▇▇ be a free act and deed ▇▇ ▇▇▇▇ of said corporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ ▇. ▇▇▇▇▇▇ DECEMBER 6, 2007 ------------------------------------- ---------------------------- ------------------------------------------- Notary Public in and for the State of Texas STATE OF TEXAS COUNTY OF HARRIS --------- ON THIS 9th day of September, 2004, before me appeared ▇. ▇▇▇G TABOR, to me personally known, who, being by me duly swo▇▇, ▇▇▇ ▇ay 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 o▇ ▇▇▇▇ ▇▇▇poration. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ June 16, 2005 ------------------------------------- ------------------------------ Notary Public in and for STATE OF COUNTY OF ON THIS ____ day of ___THIS___day of______, 2004, before me appeared ____me_______, to me personally known, who, being by me duly sworn, did say that he is the ____________ for the___________of________________, __ and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directorscorporation, 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 the State of Texas Notary page to participate in the Acquisition within the AMIJoint Operating Agreement dated May 25, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition2004 covering West Cameron Area, 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 leasesBlock 103.

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 PrP▇▇▇▇▇▇▇▇-▇▇▇▇ MARINER ENERGY, INC. BY: ------------------------------------ NAME: ---------------------------------- TITLE: --------------------------------- RIDGEWOOD ENERGY CORPORATION BY: /s/ W. Greg Tabor ------------------------------------ NAME: W. GREG TABOR TITLE: EXEC. VIC▇ ▇▇▇▇▇▇▇▇T [Illegible] ---------------------------------- STATE OF Texas TEXAS COUNTY OF Harris HARRIS ON THIS 9th ___ day of Septem▇▇▇___________, ▇▇▇▇, ▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇▇▇▇ ▇.▇▇▇▇▇▇ ▇. Odom, to me personally known, who, being by me duly swo▇▇▇▇▇, ▇▇▇ ▇ay ▇▇ that he is the Vice President - Land for Gryphon Exploration Company, Company and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directors, and said C.H. Charles H. Odom acknowledges said instrument to be a free act and deed ▇▇ ▇▇▇▇ corporation. ---------------------------- [SEAL] WANDA L. MARTIN MY COMMISSION EXPIRES /s/ Wand▇ ▇. ▇▇▇▇▇▇ 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 ▇. ▇▇▇G TABOR, to me personally known, who, being by me duly swo▇▇, ▇▇▇ ▇ay 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 o▇ ▇▇▇▇ ▇▇▇porationrporation. ------------------------------ MERCEDES S. ZUNIGA [SEAL] MY COMMISSION EXPIRES /s/ M▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇ June 16, 2005 ------------------------------------- ------------------------------ ------------------------------------------- Notary Public in and for STATE OF COUNTY OF the State of Texas ON THIS THIS____ day of _____________, 2004, before me appeared ___________me, to me personally known, who, being by me duly duty sworn, did say that he is the _____________ for of ________________, _ and that the foregoing instrument was signed in behalf of said corporation by authority of its Board of Directorscorporation, 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 the State of Texas Notary page to participate in the Acquisition within the AMIJoint Operating Agreement dated May 25, the Acquiring PARTY shall inform all PARTIES who have elected to participate in the Acquisition2004 covering West Cameron Area, 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 leasesBlock 103.