##### 



EXHIBIT 12.1

Statement of Computation of Ratio of Earnings to Fixed Charges

|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |        |        | 
|------------------------------- | --------------------------------------- | ------------------- | ---- | ------------------------ | ------ | ---------- | ---- | ------ | ------ | ---- | ---- | -------------- | ------- | ------------- | ---- | ------ | ------- |  | ---- | ------ | ------- |  | ---- | ------ | ------ | 
|                                |                                         |                     |      | Years Ended December 31, |        | Six months
|                                |                                         |                     |      |                          |        | ended     
|                                |                                         |                     |      | 1997                     |        | 1998       |      | 1999   |        | 2000 |      | 2001           |         | June 30, 2002
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |              
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      | (in thousands) |         |               |      |        |         |  |      |       
|Earnings                        |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|                                | Income From Continuing Operations*      |                     |      | 61,925                   |        |            |      | 53,885 |        |      |      | 72,856         |         |               |      | 65,951 |         |  |      | 92,533 |         |  |      | 45,199 |       
|                                | Fixed Charges                           |                     |      | 35,458                   |        |            |      | 30,915 |        |      |      | 34,305         |         |               |      | 55,621 |         |  |      | 72,217 |         |  |      | 37,089 |       
|                                | Distributed Income of
Equity Investment |                     |      |                         |        |            |      |       |        |      |      |               |         |               |      |       |         |  |      | 40,800 |         |  |      | 16,838 |       
|                                | Capitalized Interest                    |                     |      | (1,478                   | )      |            |      | (795   | )      |      |      | (2,133         | )       |               |      | (4,559 | )       |  |      | (4,000 | )       |  |      | (3,138 | )     
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|                                |                                         | Total Earnings      |      |                          | 95,905 |            |      |        | 84,005 |      |      |                | 105,028 |               |      |        | 117,013 |  |      |        | 201,550 |  |      |        | 95,988 | 
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|Fixed Charges                   |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|                                | Interest Expense                        |                     |      | 33,707                   |        |            |      | 29,784 |        |      |      | 31,563         |         |               |      | 48,982 |         |  |      | 66,057 |         |  |      | 33,616 |       
|                                | Capitalized Interest                    |                     |      | 1,478                    |        |            |      | 795    |        |      |      | 2,133          |         |               |      | 4,559  |         |  |      | 4,000  |         |  |      | 3,138  |       
|                                | Rental Interest Factor                  |                     |      | 273                      |        |            |      | 336    |        |      |      | 609            |         |               |      | 2,080  |         |  |      | 2,160  |         |  |      | 335    |       
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|                                |                                         | Total Fixed Charges |      |                          | 35,458 |            |      |        | 30,915 |      |      |                | 34,305  |               |      |        | 55,621  |  |      |        | 72,217  |  |      |        | 37,089 | 
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       
|Ratio: Earnings / Fixed Charges |                                         |                     | 2.70 |                          |        |            | 2.72 |        |        |      | 3.06 |                |         |               | 2.10 |        |         |  | 2.79 |        |         |  | 2.59 |       
|                                |                                         |                     |      |                          |        |            |      |        |        |      |      |                |         |               |      |        |         |  |      |        |         |  |      |       



---

|* |  | Excludes minority interest, extraordinary loss and undistributed equity earnings.
|- |  | ---------------------------------------------------------------------------------