Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

     We consent to the incorporation by reference in this Registration Statement on Form S-8 of our reports dated March 1, 2006, relating to the consolidated financial statements of Quicksilver Resources Inc. and subsidiaries (which report expresses an unqualified opinion and includes an explanatory paragraph related to the adoption of Statement of Financial Accounting Standards No. 143, Accounting for Asset Retirement Obligations), and management’s report on the effectiveness of internal control over financial reporting, appearing in the Annual Report on Form 10-K of Quicksilver Resources Inc. and subsidiaries for the year ended December 31, 2005.

/s/ Deloitte & Touche LLP

Fort Worth, Texas
May 23, 2006