|                                                         |  |           
|-------------------------------------------------------- |  | ----------
|Computation of Ratio of Earnings (Loss) to Fixed Charges |  | Exhibit 12



(In
Millions Except Ratios)



|                                                                |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|--------------------------------------------------------------- |  | ---- | ------- | ---- | - | ------- |  | ---- | ----- | ---- | - | ----- |  | - | -------- | -
|YEAR ENDED DECEMBER 31                                          |  | 2005 |         | 2004 |   | 2003    |  | 2002 |       | 2001 |  
|EARNINGS (LOSS)                                                 |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|Income (Loss) from Continuing Operations before Income Taxes    |  | $    | 985.7   |      | $ | 892.9   |  | $    | 380.1 |      | $ | 299.5 |  | $ | (1,608.6 | )
|Total Fixed Charges                                             |  |      | 88.6    |      |   | 108.2   |  |      | 127.5 |      |   | 132.8 |  |   | 144.3    |  
|Less Interest Capitalized                                       |  |      |        |      |   |        |  |      |      |      |   |      |  |   | (8.3     | )
|                                                                |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|Total Earnings (Loss)                                           |  |      | 1,074.3 |      |   | 1,001.1 |  |      | 507.6 |      |   | 432.3 |  |   | (1,472.6 | )
|                                                                |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|FIXED CHARGES                                                   |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|Interest                                                        |  |      | 88.6    |      |   | 108.2   |  |      | 127.1 |      |   | 131.5 |  |   | 134.8    |  
|Interest Capitalized                                            |  |      |        |      |   |        |  |      |      |      |   |      |  |   | 8.3      |  
|Amortization of Deferred Debt Expense                           |  |      |        |      |   |        |  |      | 0.4   |      |   | 1.3   |  |   | 1.2      |  
|                                                                |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|Total Fixed Charges                                             |  | $    | 88.6    |      | $ | 108.2   |  | $    | 127.5 |      | $ | 132.8 |  | $ | 144.3    |  
|                                                                |  |      |         |      |   |         |  |      |       |      |   |       |  |   |          |  
|RATIO OF EARNINGS (LOSS) TO FIXED CHARGES                       |  |      | 12.13   |      |   | 9.25    |  |      | 3.98  |      |   | 3.26  |  |   |         |  
|Dollar Amount of Deficiency in Earnings (Loss) to Fixed Charges |  |      | N/A     |      |   | N/A     |  |      | N/A   |      |   | N/A   |  | $ | 1,616.9  |