##### 



Exhibit 12.1
Statement of Computation of Ratio of Earnings to Fixed Charges

|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |        |         | 
|------------------------------- | --------------------------------------- | ------------------- | ---- | ------------------------ | ------ | ----------- | ---- | ------ | ------- | ---- | ---- | ------ | ------- | -------------- | ---- | ------ | ------- |  | ---- | ------- | ------- |  | ---- | ------ | ------- | 
|                                |                                         |                     |      | Years Ended December 31, |        | Nine Months
|                                |                                         |                     |      |                          |        | Ended      
|                                |                                         |                     |      | 1998                     |        | 1999        |      | 2000   |         | 2001 |      | 2002   |         | Sept. 30, 2003
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |               
|                                |                                         |                     |      | (in thousands)           |        |             |      |       
|Earnings                        |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|                                | Income From Continuing Operations *     |                     |      | 53,885                   |        |             |      | 72,856 |         |      |      | 65,951 |         |                |      | 92,533 |         |  |      | 105,882 |         |  |      | 80,632 |        
|                                | Fixed Charges                           |                     |      | 30,915                   |        |             |      | 34,305 |         |      |      | 55,621 |         |                |      | 72,217 |         |  |      | 77,726  |         |  |      | 74,053 |        
|                                | Distributed Income of
Equity Investment |                     |      |                         |        |             |      |       |         |      |      |       |         |                |      | 40,800 |         |  |      | 30,938  |         |  |      | 10,470 |        
|                                | Capitalized Interest                    |                     |      | (795                     | )      |             |      | (2,133 | )       |      |      | (4,559 | )       |                |      | (4,000 | )       |  |      | (4,345  | )       |  |      | (3,374 | )      
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|                                |                                         | Total Earnings      |      |                          | 84,005 |             |      |        | 105,028 |      |      |        | 117,013 |                |      |        | 201,550 |  |      |         | 210,201 |  |      |        | 161,781 | 
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|Fixed Charges                   |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|                                | Interest Expense                        |                     |      | 29,784                   |        |             |      | 31,563 |         |      |      | 48,982 |         |                |      | 66,057 |         |  |      | 70,537  |         |  |      | 67,772 |        
|                                | Capitalized Interest                    |                     |      | 795                      |        |             |      | 2,133  |         |      |      | 4,559  |         |                |      | 4,000  |         |  |      | 4,345   |         |  |      | 3,374  |        
|                                | Rental Interest Factor                  |                     |      | 336                      |        |             |      | 609    |         |      |      | 2,080  |         |                |      | 2,160  |         |  |      | 2,844   |         |  |      | 2,907  |        
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|                                |                                         | Total Fixed Charges |      |                          | 30,915 |             |      |        | 34,305  |      |      |        | 55,621  |                |      |        | 72,217  |  |      |         | 77,726  |  |      |        | 74,053  | 
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       
|Ratio: Earnings / Fixed Charges |                                         |                     | 2.72 |                          |        |             | 3.06 |        |         |      | 2.10 |        |         |                | 2.79 |        |         |  | 2.70 |         |         |  | 2.18 |       
|                                |                                         |                     |      |                          |        |             |      |        |         |      |      |        |         |                |      |        |         |  |      |         |         |  |      |       

*     Excludes minority interest, extraordinary loss, gain on sale of assets and undistributed equity earnings.