EX-12.1 13 dex121.htm COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Computation of Ratio of Earnings to Fixed Charges

Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

 

(in thousands of U.S. dollars,
except ratios)

   Year End
December 31,
2009
   Year End
December 31,
2008
    Year End
December 31,
2007
   Year End
December 31,
2006
   Year End
December 31,
2005

Earnings:

             

Pre-tax income (loss)

   $ 246,215    $ (174,086   $ 302,827    $ 217,988    $ 10,477

Fixed charges

     23,260      37,462        43,562      14,503      23,235
                                   

Total Earnings (Loss)

   $ 269,475    $ (136,624   $ 346,389    $ 232,491    $ 33,712
                                   

Fixed Charges:

             

Interest and amortization on indebtedness

   $ 21,453    $ 36,143      $ 42,702    $ 13,832    $ 22,764

Rental expense at 33.3%(1)

     1,807      1,319        860      671      471
                                   

Total Fixed Charges

   $ 23,260    $ 37,462      $ 43,562    $ 14,503    $ 23,235
                                   

Ratio of Earnings to Fixed Charges

     11.6      (3.7     8.0      16.0      1.5
                                   

Deficiency

     N/A    $ 174,086        N/A      N/A      N/A
                                   

 

(1) 33.3% represents a reasonable approximation of the interest factor