Quicksilver Resources Inc. (NYSE: KWK) announced Friday that its wholly-owned subsidiary Quicksilver Production Partners LP has registered for an initial public offering to raise up to $250 million. Fort Worth-based Quicksilver said in a release that it will contribute certain of its Barnett Shale assets and related derivatives to its subsidiary. Quicksilver Production Partners said in its prospectus that all of its oil and gas reserves are in the Barnett Shale.