EXHIBIT 99.1

UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION

     On October 1, 2004, Atmos Energy Corporation (referred to in this report, with its subsidiaries, as Atmos or we, us, our, the company or a similar word) completed our acquisition of the natural gas distribution and pipeline operations of TXU Gas Company. The TXU Gas operations we acquired are regulated businesses engaged in the purchase, transmission, distribution and sale of natural gas in the north-central, eastern and western parts of Texas. In this report, we refer to TXU Gas Company as TXU Gas and to the acquisition of these operations as the TXU Gas acquisition.

     The purchase price for the TXU Gas acquisition was approximately $1.905 billion (after preliminary closing adjustments), which we paid in cash. We acquired approximately $121 million of working capital of TXU Gas and did not assume any indebtedness of TXU Gas in connection with the acquisition. TXU Gas provided for the repayment of all of its indebtedness and redeemed all of its preferred stock prior to closing and retained and agreed to pay certain other liabilities under the terms of the acquisition agreement. The purchase price is subject to further adjustment after closing for the actual amount of working capital we acquired and other specified matters. We anticipate that any post-closing adjustments will not be material.

     We funded the purchase price for the TXU Gas acquisition with approximately $235.8 million in net proceeds from our offering of 9,939,393 shares of common stock, which we completed on July 19, 2004, and approximately $1.7 billion in net proceeds from our issuance on October 1, 2004 of commercial paper backstopped by a senior unsecured revolving credit agreement, which we entered into on September 24, 2004 for bridge financing for the TXU Gas acquisition. In this report, we refer to the July offering of our common stock as the July 2004 common stock offering, the senior unsecured revolving credit agreement as the bridge financing facility and the $1.7 billion of commercial paper that we issued backstopped by the bridge financing facility, together with any commercial paper we may issue to refinance this commercial paper, as the acquisition commercial paper.

     On October 14, 2004, we commenced a public offering of 14,000,000 shares of our common stock, plus up to an additional 2,100,000 shares issuable pursuant to an overallotment option granted to the underwriters of the common stock offering. Except as otherwise indicated, all information in this report assumes that the underwriters will not exercise their overallotment option. On October 21, 2004, we priced the offering of our common stock at $24.75 per share. The net proceeds of this offering of common stock will be approximately $332.2 million, after the payment of the underwriting discount and the commissions and estimated offering expenses payable by us. This offering of common stock is expected to close on October 27, 2004. In this report, we refer to our offering of our common stock described above as the common stock offering and the shares of common stock we intend to issue, collectively, as the shares.

     On October 18, 2004, we commenced and priced our offering of $1.4 billion senior unsecured notes, consisting of $400 million of our 4.00% senior notes due 2009, $500 million of our 4.95% senior notes due 2014, $200 million of our 5.95% senior notes due 2034 and $300 million of our floating rate senior notes due 2007. The floating rate senior notes will bear interest at a rate equal to the three-month LIBOR rate plus 0.375% per year. The net proceeds of this offering of notes will be approximately $1.39 billion, after the payment of the underwriting discounts and the commissions and estimated offering expenses payable by us. This offering of senior notes closed on October 22, 2004. In this report, we refer to our offering of the multiple series of senior unsecured notes described above as the senior notes offering and the various series of senior unsecured notes we intend to issue, collectively, as the senior notes.

     In June 2004, we entered into two agreements to fix the Treasury yield component of $675 million principal amount of the senior notes, which we refer to in this report as the June 2004 Treasury lock agreements. In September 2004, we entered into two additional agreements to fix the Treasury yield component of an additional $200 million principal amount of the senior notes. We intend to terminate and settle the June 2004 Treasury lock agreements on October 22, 2004, using additional short-term borrowings. The fair value of the June 2004 Treasury lock agreements, as of October 18, 2004, represented an obligation of approximately $44.0 million, which is the amount we expect to pay to settle the June 2004 Treasury lock agreements. In this report, we refer to the settlement of the June 2004 Treasury lock agreements as the Treasury lock settlement.

     We intend to use the net proceeds from the senior notes offering and the expected net proceeds from the common stock offering to repay in full the acquisition commercial paper remaining outstanding on October 27, 2004 and the short-term debt to be incurred on October 22, 2004 in connection with the Treasury lock settlement. The proceeds from the senior notes offering and the common stock offering will reduce permanently the availability under the bridge financing facility. Neither the completion of the senior notes offering nor the completion of the common stock offering is contingent upon the other.