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| EL      PASO NATURAL GAS COMPANY                       |   |
|--------------------------------------------------------|--------|
| COMPUTATION      OF RATIO OF EARNINGS TO FIXED CHARGES |   |
| (IN      MILLIONS, EXCEPT FOR RATIO)                   |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                   |   | FOR      THE YEARS ENDED DECEMBER 31, |   |
|                                                   |   | 2009 |   |   | 2008 |   |   | 2007 |   |   | 2006 |   |   | 2005 |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Earnings                                               |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Income before      income taxes                        |   | $ | 207 |   |   | $ | 218 |   |   | $ | 215 |   |   | $ | 244 |   |   | $ | 110 |   |
| Fixed      charges                                     |   |   | 95 |   |   |   | 93 |   |   |   | 101 |   |   |   | 97 |   |   |   | 95 |   |
| Allowance for      funds used during construction      |   |   | (1 | ) |   |   | (1 | ) |   |   | (1 | ) |   |   | (1 | ) |   |   | (3 | ) |
| Totals      earnings available for fixed charges       |   | $ | 301 |   |   | $ | 310 |   |   | $ | 315 |   |   | $ | 340 |   |   | $ | 202 |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Fixed      charges                                     |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Interest and      debt costs                           |   | $ | 94 |   |   | $ | 92 |   |   | $ | 100 |   |   | $ | 96 |   |   | $ | 95 |   |
| Interest      component of rent                        |   |   | 1 |   |   |   | 1 |   |   |   | 1 |   |   |   | 1 |   |   |   | 0 |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total fixed      charges                               |   | $ | 95 |   |   | $ | 93 |   |   | $ | 101 |   |   | $ | 97 |   |   | $ | 95 |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Ratio of      earnings to fixed charges                |   |   | 3.2 |   |   |   | 3.3 |   |   |   | 3.1 |   |   |   | 3.5 |   |   |   | 2.1 |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

| For purposes      of computing these ratios, earnings means pre-tax income      before: |                                                                                                                                   |   |   |   |   |
|-----------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|--------|--------|--------|--------|
|                                                                                    | - fixed      charges;                                                                                                                  |   |   |   |   |   |   |   |   |   |   |
| Less                                                                                    |                                                                                                                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                                                    | -allowance      for funds used during construction.                                                                                    |   |   |   |   |   |   |   |   |
|                                                                                    |                                                                                                                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| 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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