UniSource Energy Corporation
Computation of Ratio of Earnings to Fixed Charges
 3 Months Ended
    
    
    12 Months Ended
    
    
    12 Months EndedMarch 31,
    
    
    March 31,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,2009
    
    
    2009
    
    
    2008
    
    
    2007
    
    
    2006
    
    
    2005
    
    
    2004- Thousands of Dollars -Fixed Charges:Interest on Long-Term Debt
    
    $
    14,644
    
    
    $
    67,626
    
    
    $
    70,227
    
    
    $
    73,095
    
    
    $
    75,039
    
    
    $
    76,762
    
    
    $
    80,968Other Interest (1)
    
    
    470
    
    
    
    1,166
    
    
    
    1,837
    
    
    
    5,480
    
    
    
    7,922
    
    
    
    3,153
    
    
    
    1,947Interest on Capital Lease Obligations
    
    
    13,966
    
    
    
    56,901
    
    
    
    57,272
    
    
    
    64,499
    
    
    
    72,586
    
    
    
    79,098
    
    
    
    85,912Estimated Interest Portion of Rental Expense
    
    
    29
    
    
    
    170
    
    
    
    188
    
    
    
    258
    
    
    
    326
    
    
    
    391
    
    
    
    453Total Fixed Charges
    
    $
    29,109
    
    
    $
    125,863
    
    
    $
    129,524
    
    
    $
    143,332
    
    
    $
    155,873
    
    
    $
    159,404
    
    
    $
    169,280Net Income
    
    $
    4,919
    
    
    $
    21,554
    
    
    $
    14,021
    
    
    $
    58,373
    
    
    $
    67,447
    
    
    $
    46,144
    
    
    $
    45,919Less:Discontinued Operations  Net of Tax
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    (1,796
    )
    
    
    (5,483
    )
    
    
    (5,063
    )Accounting Change  Net of Tax
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    (626
    )
    
    
    Net Income (Loss) from Continuing Operations
    
    
    4,919
    
    
    
    21,554
    
    
    
    14,021
    
    
    
    58,373
    
    
    
    69,243
    
    
    
    52,253
    
    
    
    50,982Add (Deduct):(Income) Losses from Equity Investees
    
    
    27
    
    
    
    2,546
    
    
    
    713
    
    
    
    340
    
    
    
    (210
    )
    
    
    (2,113
    )
    
    
    (7,121
    )Income Taxes
    
    
    3,256
    
    
    
    20,443
    
    
    
    16,976
    
    
    
    39,079
    
    
    
    43,936
    
    
    
    37,623
    
    
    
    37,186Total Fixed Charges
    
    
    29,109
    
    
    
    125,863
    
    
    
    129,524
    
    
    
    143,332
    
    
    
    155,873
    
    
    
    159,404
    
    
    
    169,280Total Earnings before Taxes
and Fixed Charges
    
    $
    37,311
    
    
    $
    170,406
    
    
    $
    161,234
    
    
    $
    241,124
    
    
    $
    268,842
    
    
    $
    247,167
    
    
    $
    250,327Ratio of Earnings to Fixed Charges
    
    
    1.282
    
    
    
    1.354
    
    
    
    1.245
    
    
    
    1.682
    
    
    
    1.725
    
    
    
    1.551
    
    
    
    1.479
 (1)
    
    Excludes recognition of Allowance for Borrowed Funds Used During Construction.