XTO Energy Increases 2007 Production Target to 17%

XTO Energy has updated operational and financial guidance for the remainder of 2007 based on current expectations for production, expenses, closing of the Dominion property acquisition in late July and other parameters resulting from ongoing operations and development budget activities. These statements are forward looking, as described in the final paragraph of this release, and actual results may differ materially. These estimates do not include derivative fair value gains and losses, the effects of other possible future acquisitions or divestitures, or unforeseen events that may occur after this release.


    The Company's estimated ranges of average daily production for the
remainder of 2007 are:

                                              Q3                 Q4

          Natural Gas (Mmcf)            1,490 - 1,500      1,600 - 1,610
          NGL (Mbbl)                          15                 15
          Oil (Mbbl)                          47                 48

          Total Gas Equivalent (Mmcfe)  1,862 - 1,872      1,978 - 1,988

Price Realizations and Differentials

The Company's realized natural gas and oil prices are expected to average below the NYMEX prices due to regional differentials. The following are estimated pricing differentials, or percentage reductions to NYMEX prices, before consideration of any hedging activity:

                                              Q3 - Q4 Differential
                                              (Percentage of NYMEX)

          Natural Gas                                9 - 11%
          Oil                                        8 - 10%

Realized pricing for natural gas liquids (NGL) is expected to be about 55% to 65% of the average NYMEX oil price.


The following table presents the Company's expected expenses per Mcfe assuming a $7.00 per Mcf NYMEX gas price and a $70.00 per Bbl NYMEX oil price:

          Expense ($/Mcfe)                                         Q3 - Q4

          Production                                             0.90 - 0.95
          Taxes, transportation and other                        0.65 - 0.75
          Exploration                                            0.05 - 0.10
          Depreciation, depletion and amortization               1.80 - 1.90
          Accretion of asset retirement obligation               0.02 - 0.04
          General and administrative: cash                       0.25 - 0.30
          General and administration: non-cash, stock-based      0.08 - 0.12
          Interest                                               0.34 - 0.40

    The Company's current NYMEX hedging positions for natural gas and oil are:

                                    Mcf or Bbls          NYMEX Price
                                      per Day           per Mcf or Bbl

          Natural Gas

          July-Dec 2007               900,000            $      9.19
          Jan-Dec 2008                400,000            $      8.80


          July-Dec 2007                37,500            $     74.40
          Jan-Dec 2008                 22,500            $     74.26

Income Tax

For the remainder of the year, the Company projects a 37% effective tax rate, with up to 45% of that amount expected to be currently payable.