QUICKSILVER RESOURCES INC - FORM 10-K - EX-32.1 - CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 - April 16, 2012

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10-K - FORM 10-K - QUICKSILVER RESOURCES INCd291270d10k.htm
EX-10.9 - INCENTIVE STOCK OPTION AGREEMENT - QUICKSILVER RESOURCES INCd291270dex109.htm
EX-99.2 - REPORT OF LAROCHE PETROLEUM CONSULTANTS - QUICKSILVER RESOURCES INCd291270dex992.htm
EX-4.14 - ELEVENTH SUPPLEMENTAL INDENTURE - QUICKSILVER RESOURCES INCd291270dex414.htm
EX-23.3 - CONSENT OF LAROCHE PETROLEUM CONSULTANTS - QUICKSILVER RESOURCES INCd291270dex233.htm
EX-31.2 - CERTIFICATION PURSUANT TO SECTION 302 - QUICKSILVER RESOURCES INCd291270dex312.htm
EX-21.1 - SUBSIDIARIES OF THE REGISTRANT - QUICKSILVER RESOURCES INCd291270dex211.htm
EX-4.15 - TWELFTH SUPPLEMENTAL INDENTURE - QUICKSILVER RESOURCES INCd291270dex415.htm
EX-23.2 - CONSENT OF SCHLUMBERGER DATA AND CONSULTING - QUICKSILVER RESOURCES INCd291270dex232.htm
EX-23.1 - CONSENT OF DELOITTE & TOUCHE LLP - QUICKSILVER RESOURCES INCd291270dex231.htm
EX-99.1 - REPORT OF SCHLUMBERGER DATA AND CONSULTING SERVICES - QUICKSILVER RESOURCES INCd291270dex991.htm
EX-4.12 - NINTH SUPPLEMENTAL INDENTURE - QUICKSILVER RESOURCES INCd291270dex412.htm
EX-31.1 - CERTIFICATION PURSUANT TO SECTION 302 - QUICKSILVER RESOURCES INCd291270dex311.htm
EX-4.13 - TENTH SUPPLEMENTAL INDENTURE - QUICKSILVER RESOURCES INCd291270dex413.htm
EX-10.4 - FOURTH AMENDED AND RESTATED 2006 EQUITY PLAN - QUICKSILVER RESOURCES INCd291270dex104.htm
EX-10.17 - DESCRIPTION OF 2011 CASH BONUSES - QUICKSILVER RESOURCES INCd291270dex1017.htm
EX-10.54 - AMENDED AND RESTATED GAS GATHERING AGREEMENT - QUICKSILVER RESOURCES INCd291270dex1054.htm
EX-10.56 - SECOND AMENDMENT TO GAS GATHERING AGREEMENT - QUICKSILVER RESOURCES INCd291270dex1056.htm
EX-10.55 - FIRST AMENDMENT TO GAS GATHERING AGREEMENT - QUICKSILVER RESOURCES INCd291270dex1055.htm
EX-10.10 - FORM OF NONQUALIFIED SOTCK OPTION AGREEMENT - 2006 EQUITY PLAN - QUICKSILVER RESOURCES INCd291270dex1010.htm

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. § 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, in connection with the Annual Report on Form 10-K of Quicksilver Resources Inc. (the “Company”) for the year ended December 31, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Philip Cook, Executive Vice President – Chief Financial Officer of the Company, and Glenn Darden, President and Chief Executive Officer of the Company, each certifies that, to his knowledge:

 

  (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

 

  (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Date: April 15, 2012

By:   /s/ Philip Cook     By:   /s/ Glenn Darden
 

Philip Cook

Executive Vice President – Chief Financial Officer

      

Glenn Darden

President and Chief Executive Officer

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