This excerpt taken from the ELN 20-F filed Feb 26, 2009.
Indentures governing the 7.75% Notes, 8.875% Notes, the Floating Rate Notes due 2011 and the Floating Rate Notes due 2013 contain covenants that restrict or prohibit our ability to engage in or enter into a variety of transactions. These restrictions and prohibitions could have a material and adverse effect on us. During 2008, as of December 31, 2008, and as of the date of filing of this Form 20-F, we were not in violation of any of our debt covenants. For additional information with respect to the restrictive covenants contained in our indentures, refer to Note 18 to the Consolidated Financial Statements.