FORM 10-K CONTANGO OIL & GAS COMPANY

3.4 Amendment to the Certificate of Incorporation of Contango Oil & Gas Company. (8)
4.1 Facsimile of common stock certificate of Contango Oil & Gas Company. (1)
4.2 Certificate of Designations, Preferences and Relative Rights and Limitations for Series E Perpetual
Cumulative Convertible Preferred Stock of Contango Oil & Gas Company. (14)
4.3 Securities Purchase Agreement, dated as of May 11, 2007, among Contango Oil & Gas Company and
the Purchasers Named Therein, relating to the Series E Perpetual Cumulative Convertible Preferred
Stock. (14)
4.4 Certificate of Designation of Series F Junior Preferred Stock of Contango Oil & Gas Company dated
September 30, 2008. (25)
4.5 Rights Agreement, dated as of September 30, 2008, between Contango Oil & Gas Company and
Computershare Trust Company, N.A., as Rights Agent. (25)
10.1 Agreement, dated effective as of September 1, 1999, between Contango Oil & Gas Company and
Juneau Exploration, L.L.C. (2)
10.2 Securities Purchase Agreement dated August 24, 2000 by and between Contango Oil & Gas Company
and Trust Company of the West. (3)
10.3 Securities Purchase Agreement dated August 24, 2000 by and between Contango Oil & Gas Company
and Fairfield Industries Incorporated. (3)
10.4 Securities Purchase Agreement dated August 24, 2000 by and between Contango Oil & Gas Company
and Juneau Exploration Company, L.L.C. (3)
10.5 Amendment dated August 14, 2000 to agreement between Contango Oil & Gas Company and Juneau
Exploration Company, LLC. dated effective as of September 1, 1999. (4)
10.6 Asset Purchase Agreement by and among Juneau Exploration, L.P. and Contango Oil & Gas Company
dated January 4, 2002. (6)
10.7 Asset Purchase Agreement by and among Mark A. Stephens, John Miller, The Hunter Revocable Trust,
Linda G. Ferszt, Scott Archer and the Archer Revocable Trust and Contango Oil & Gas Company dated
January 9, 2002. (7)
10.8 Freeport LNG Development, L.P. Amended and Restated Limited Partnership Agreement dated
February 27, 2003. (10)
10.9 Partnership Purchase Agreement among Contango Sundance, Inc., Contango Oil & Gas, Cheniere LNG,
Inc. and Cheniere Energy, Inc. dated March 1, 2003. (10)
10.10 First Amendment, dated December 19, 2003, to Freeport LNG Development, L.P. Amended and
Restated Limited Partnership Agreement dated February 27, 2003. (10)
10.11 Limited Liability Company Agreement of Republic Exploration LLC dated August 24, 2000. (11)
10.12 Amendment to Limited Liability Company Agreement and Additional Agreements of Republic
Exploration LLC dated as of September 1, 2005. (11)
10.13 Limited Liability Company Agreement of Contango Offshore Exploration LLC dated November 1,
2000. (11)
10.14 First Amendment to Limited Liability Company Agreement and Additional Agreements of Contango
Offshore Exploration LLC dated as of September 1, 2005. (11)
10.15* Contango Oil & Gas Company 1999 Stock Incentive Plan. (12)
10.16* Amendment No. 1 to Contango Oil & Gas Company 1999 Stock Incentive Plan dated as of March 1,
2001. (12)
10.17 Term Loan Agreement between Contango Oil & Gas Company and The Royal Bank of Scotland plc,
dated April 27, 2006. (13)
10.18 Demand Promissory Note dated October 26, 2006 with Schedules I, II and III. (15)
10.19 Term Loan Agreement between Contango Oil & Gas Company and Centaurus Capital LLC, dated
January 30, 2007. (16)
10.20 Form of Pledge Agreement. (16)
10.21 Assignment of Operating Rights Interest between CGM, LP and Contango Operators, Inc., dated as of
January 3, 2008. (20)
10.22 Partial Assignment of Oil and Gas Leases between CGM, LP and Contango Operators, Inc., dated as of
January 3, 2008. (20)
10.23 Assignment of Operating Rights Interest between CGM, LP and Contango Operators, Inc., dated as of
January 3, 2008. (20)
10.24 Assignment of Operating Rights Interest between Olympic Energy Partners, LLC and Contango
Operators, Inc., dated as of January 3, 2008. (20)
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