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|                               Exhibit      12                    |   |
|-------------------------------------------------------------------------------------------|--------|
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| EL      PASO NATURAL GAS COMPANY                                                          |   |
| COMPUTATION      OF RATIO OF EARNINGS TO FIXED CHARGES                                    |   |
| (IN      MILLIONS, EXCEPT FOR RATIO)                                                      |   |
|                                                                                      |   |
|                                                                                      |   | For      the Nine Months endedSeptember      30, |   |
|                                                                                      |   | 2009 |   |   |   | 2008 |   |
| Earnings                                                                                  |   |   |   |   |
|     Pre-tax      income                                               |   | $ | 161 |   |   |   | $ | 168 |   |
|     Fixed      charges                                                |   |   | 70 |   |   |   |   | 70 |   |
|     Allowance for      funds used during construction            |   |   |  - |   |   |   |   |  (1) |   |
|        Total earnings      available for fixed charges |   | $ | 231 |   |   |   | $ | 237 |   |
|                                                                                      |   |   |   |   |   |   |   |   |   |
| Fixed      charges                                                                        |   |   |   |   |   |   |   |   |   |
|     Interest and      debt expense                                    |   | $ | 70 |   |   |   | $ | 69 |   |
|     Interest      component of rent                                   |   |   |  1 |   |   |   |   |  1 |   |
|          Total fixed      charges                 |   | $ |  71 |   |   |   | $ |  70 |   |
|                                                                                      |   |   |   |   |   |   |   |   |   |
| Ratio      of earnings to fixed charges                                                   |   |   | 3.3 |   |   |   |   | 3.4 |   |

| For purposes      of computing these ratios, earnings means pre-tax income      before:                                                                        |   |   |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|--------|
|     - fixed      charges;                                                                                                                  |   |   |   |   |   |   |   |   |   |   |
|  Less     - allowance for      funds used during construction.                                                                   |   |   |   |   |
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| Fixed charges      means the sum of the following:                                                                                                             |   |   |   |   |   |   |   |   |   |
|     - interest      costs, not including interest on tax liabilities which is included in      income tax expense on our income statement; |
|     - amortization      of debt costs; and                                                                                                 |   |   |   |   |   |   |   |   |   |   |
|     - that portion      of rental expense which we believe represents an interest      factor.                                             |   |   |
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