Adjusted EBITDA represents EBITDA before share based compensation expense related to stock appreciation rights (SARs), and before gains or losses on investments and derivative instruments. We believe that Adjusted EBITDA is useful to investors evaluating our operating performance, and management also uses Adjusted EBITDA for that purpose. Our SARs (which settle in cash) are revalued each quarter based primarily upon changes in our stock price. Management believes that eliminating the expense and income associated with our stock based compensation, investments and derivates allows us and our investors to understand better our operating results independent of financial changes caused by the fluctuating price and value of our common stock, investments and derivative instruments. Adjusted EBITDA is not a financial measure presented in accordance with U.S. GAAP. Accordingly, when analyzing our operating performance, investors should not consider Adjusted EBITDA in isolation or as a substitute for net (loss) earnings, cash flows from operating activities or other statements of operations or statements of cash flow data prepared in accordance with U.S. GAAP. Our calculation of Adjusted EBITDA is not necessarily comparable to that of other similarly titled measures reported by other companies.

CONTACT: Dale C. Davies         Michael Obertop         636.940.6000

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