Exhibit 12
NORTHWEST NATURAL GAS COMPANY
Computation of Ratio of Earnings to Fixed Charges
and Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends(1)
January 1, 2005 – September 30, 2010
(Thousands, except ratio of earnings to fixed charges)
(Unaudited)
12 Months Ended Sept. 30, 2010 |
Nine Months(2) Ended Sept. 30, 2010 |
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Year Ended December 31, | ||||||||||||||||||||||||||||
2009 | 2008 | 2007 | 2006 | 2005 | ||||||||||||||||||||||||
Fixed Charges, as defined: |
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Interest on Long-Term Debt |
$ | 37,447 | $ | 33,605 | $ | 34,294 | $ | 34,651 | $ | 34,330 | $ | 39,402 | $ | 29,548 | ||||||||||||||
Other Interest |
1,937 | 4,022 | 4,116 | 4,648 | 2,665 | 1,437 | 1,033 | |||||||||||||||||||||
Amortization of Debt Discount and Expense |
1,503 | 700 | 711 | 716 | 808 | 1,773 | 1,330 | |||||||||||||||||||||
Interest Portion of Rentals |
1,735 | 1,551 | 1,523 | 1,465 | 1,357 | 1,625 | 1,210 | |||||||||||||||||||||
Total Fixed Charges, as defined |
$ | 42,622 | $ | 39,878 | $ | 40,644 | $ | 41,480 | $ | 39,160 | $ | 44,237 | $ | 33,121 | ||||||||||||||
Earnings, as defined: |
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Net Income |
$ | 75,122 | $ | 69,525 | $ | 74,497 | $ | 63,415 | $ | 58,149 | $ | 74,482 | $ | 43,076 | ||||||||||||||
Taxes on Income |
46,671 | 40,678 | 44,060 | 36,234 | 32,720 | 48,942 | 29,119 | |||||||||||||||||||||
Fixed Charges, as above |
42,622 | 39,878 | 40,644 | 41,480 | 39,160 | 44,237 | 33,121 | |||||||||||||||||||||
Total Earnings, as defined |
$ | 164,415 | $ | 150,081 | $ | 159,201 | $ | 141,129 | $ | 130,029 | $ | 167,661 | $ | 105,316 | ||||||||||||||
Ratio of Earnings to Fixed Charges |
3.86 | 3.76 | 3.92 | 3.40 | 3.32 | 3.79 | 3.18 | |||||||||||||||||||||
(1) | NW Natural has no preference equity securities outstanding; therefore, the ratio of earnings to fixed charges is the same as the ratio of earnings to combined fixed charges and preferred stock dividends. |
(2) | A significant part of the business of NW Natural is of a seasonal nature; therefore, the ratios of earnings to fixed charges for the interim periods are not necessarily indicative of the results for a full year. |