Quicksilver Resources Notice of Convertibility of Debentures

Quicksilver Resources Inc. announced that, due to the satisfaction of the market price condition to conversion, the company's 1.875% Convertible Subordinated Debentures due 2024 are convertible during the fiscal quarter ending March 31, 2008.

Pursuant to the terms of the indenture under which the Debentures were issued, the Debentures are currently convertible at a rate of 32.7209 shares of common stock of Quicksilver Resources per $1,000 principal amount of the Debentures (such conversion rate having been adjusted to account for a 3-for-2 stock split effected in the form of a stock dividend on June 30, 2005). These shares are included in the company's fully diluted earnings per share calculation.