EX-12.1 17 a2190506zex-12_1.htm EXHIBIT 12.1
QuickLinks -- Click here to rapidly navigate through this document

Exhibit 12.1:    Computation of Ratio of Earnings to Fixed Charges

  YEAR ENDED DECEMBER 31,   

(in thousands, except ratio)

    2004     2005     2006     2007     2008  
   

Consolidated pretax income (loss)

  $ 521,212   $ 721,051   $ 567,108   $ (420,098 ) $ (405,764 )

Share of distributed loss (income) of 50%-or-less-owned affiliates, net of equity pickup

   
(5,772

)
 
(315

)
 
260
   
(342

)
 
43,900
 

Amortization of capitalized interest

    41,764     45,483     48,708     41,689     61,146  

Interest

    53,242     66,697     71,955     62,122     47,109  

Less interest capitalized during the period

    (52,015 )   (65,959 )   (71,750 )   (62,024 )   (46,889 )

Interest portion of rental expense

    5,639     5,678     7,736     8,911     7,416  
       

EARNINGS (LOSS)

  $ 564,070   $ 772,635   $ 624,017   $ (369,742 ) $ (293,082 )

Interest

 
$

53,242
 
$

66,697
 
$

71,955
 
$

62,122
 
$

47,109
 

Interest portion of rental expense

    5,639     5,678     7,736     8,911     7,416  
       

FIXED CHARGES

  $ 58,881   $ 72,375   $ 79,691   $ 71,033   $ 54,525  

Ratio of earnings (loss) to fixed charges

   
9.58
   
10.68
   
7.83
   
(5.21

)
 
(5.38

)
   



QuickLinks