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Results from previous years have been restated to conform to current period presentation. 

(a) Certain amounts have been restated to reflect changes to the implementation of Statement of Financial Accounting Standards (“SFAS”) No. 142 “Goodwill and Other Intangible Assets,” as discussed in the Restatement section of Note 1 to the consolidated financial statements. 

(b) Pro forma amounts reflect the effect of the retroactive application of the change in accounting principle for the adoption of SFAS No. 143 ”Accounting for Asset Retirement Obligations” in 2003. 

(c) Current Ratio is calculated by dividing Current Assets by Current Liabilities. These amounts are taken directly from the consolidated balance sheets. 

(d) Return on Equity is calculated by dividing Income (Loss) before Cumulative Effect of Accounting Change by the average of the beginning and ending Common Shareholders’ Equity. These amounts are taken from the consolidated statements of operations and balance sheets. The result is shown as a percentage. 

