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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Form 10-K

Commission file number 1-10042

Registrant’s telephone number, including area code:

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

     Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes þ          No o

     Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.     o

     Indicate by check whether the recipient is an accelerated filer (as defined in Exchange Act Rule 12b-2).     Yes þ          No o

     The aggregate market value of the voting stock held by non-affiliates of the registrant was $1,265,996,935 as of March 31, 2004. On March 31, 2004 the registrant had 52,235,980 shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

     Portions of the registrant’s Definitive Proxy Statement to be filed for the Annual Meeting of Shareholders on February 9, 2005 are incorporated by reference into Part III of this report.

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PART I

      The terms “we,” “our,” “us,” “Atmos” and “Atmos Energy” refer to Atmos Energy Corporation and its subsidiaries, unless the context suggests otherwise. The abbreviations “Mcf,” “MMcf” and “Bcf” mean thousand cubic feet, million cubic feet and billion cubic feet.

Overview

      Atmos Energy Corporation and its subsidiaries are engaged primarily in the natural gas utility business as well as other natural gas nonutility businesses. As of September 30, 2004 we distributed natural gas through sales and transportation arrangements to approximately 1.7 million residential, commercial, public authority and industrial customers through our six regulated utility divisions, which covered service areas in 12 states. Our primary service areas are located in Colorado, Kansas, Kentucky, Louisiana, Mississippi, Tennessee and Texas. We have more limited service areas in Georgia, Illinois, Iowa, Missouri and Virginia. In addition, we transport natural gas for others through our distribution system.

      Through our nonutility businesses, we provide natural gas management and marketing services to municipalities, other local gas distribution companies and industrial customers in 18 states. We own or hold an interest in natural gas storage fields in Kentucky and Louisiana that we use to supply natural gas to our customers.

TXU Gas Acquisition

      On October 1, 2004, we completed our acquisition of the natural gas distribution and pipeline operations of TXU Gas Company (TXU Gas). 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. Through these newly acquired operations, we provide gas distribution services to approximately 1.5 million residential and business customers in Texas, including the Dallas/ Fort Worth metropolitan area. We also now own and operate a system consisting of 6,162 miles of gas transmission and gathering lines and five underground storage reservoirs, all within Texas. The TXU Gas acquisition makes us one of the largest publicly-traded companies in the United States whose primary business is the transmission and distribution of natural gas and the provision of related services. It also makes us one of the largest intrastate pipeline operators in Texas.

      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 sixty days after closing for the actual amount of working capital we acquired and other specified matters. We anticipate that any post-closing purchase price adjustments will not be material.

      We funded the purchase price for the TXU Gas acquisition with approximately $235.7 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 October 2004, we paid off the commercial paper used to fund the acquisition through the issuance of senior unsecured notes on October 22, 2004 which generated net proceeds of approximately $1.39 billion and the sale of 16.1 million shares of common stock on October 27, 2004, which generated net proceeds of approximately $382.5 million before other offering costs. As a result of this refinancing, we canceled the senior unsecured revolving bridge credit facility.

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Operating Segments

      Our operations are currently divided into three segments:

	•	the utility segment, which includes our related natural gas distribution and sales operations,
	•	the natural gas marketing segment, which includes a variety of natural gas management services and
	•	the other nonutility segment, which includes all of our other nonutility operations.

      Financial information relating to our operating segments is contained in Note 17 to the consolidated financial statements.

Strategy

      Our overall strategy is to:

	•	integrate the operations of TXU Gas that we acquired
	•	improve the quality and consistency of earnings growth, while operating our natural gas utility and nonutility businesses exceptionally well; and
	•	enhance and strengthen a culture built on our core values.

      Over the last five years, we have grown through several acquisitions, including our acquisition in April 2001 of the remaining 55 percent interest in Woodward Marketing, L.L.C. that we did not already own, our acquisition in July 2001 of the assets of Louisiana Gas Service Company, our acquisition in December 2002 of Mississippi Valley Gas Company and our acquisition in October 2004 of the natural gas distribution and pipeline operations of TXU Gas.

      We have experienced over 20 consecutive years of increasing dividends and earnings growth after giving effect to our acquisitions. We have achieved this record of growth while operating our utility operations efficiently by managing our operating and maintenance expenses, leveraging our technology, such as our 24-hour call center, to achieve more efficient operations, focusing on regulatory rate proceedings to increase revenue as our costs increase and mitigating weather-related risks through weather-normalized rates in many of our service areas. Additionally, we have strengthened our nonutility business by ceasing speculative trading activities, increasing gross profit margins and actively pursuing opportunities to increase the amount of storage available to us.

      Our core values include focusing on our employees and customers while conducting our business with honesty and integrity. We are strengthening our culture through ongoing communication with our employees and enhanced employee training.

Utility Segment Overview

      At September 30, 2004, we operated our utility segment through the following six regulated natural gas utility divisions:

	•	Atmos Energy Colorado-Kansas Division,
	•	Atmos Energy Kentucky Division,
	•	Atmos Energy Louisiana Division,
	•	Atmos Energy Mid-States Division,
	•	Atmos Energy Texas Division (now known as the Atmos Energy West Texas Division) and
	•	Mississippi Valley Gas Company Division

      On October 1, 2004, we created the Atmos Energy Mid-Tex Division which represents the TXU Gas natural gas distribution operations we acquired as well as the Atmos Pipeline — Texas Division which

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      Our natural gas utility distribution business is seasonal and dependent on weather conditions in our service areas. Gas sales to residential and commercial customers are greater during the winter months than during the remainder of the year. The volumes of gas sales during the winter months will vary with the temperatures during these months. The seasonal nature of our sales to residential and commercial customers is partially offset by our sales in the spring and summer months to our agricultural customers in Texas, Colorado and Kansas who use natural gas to operate irrigation equipment.

      In addition to weather, our revenues are affected by the cost of natural gas and economic conditions in the areas that we serve. Higher gas costs, which we are generally able to pass through to our customers under purchased gas adjustment clauses, may cause customers to conserve, or, in the case of industrial customers, to use alternative energy sources.

      The effect of weather that is above or below normal are partially offset through weather normalization adjustments, or WNA, in certain of our service areas. WNA allows us to increase the base rate portion of customers’ bills when weather is warmer than normal and decrease the base rate when weather is colder than normal. As of September 30, 2004 we had, or had received regulatory approvals for, WNA in the following service areas for the following periods, which covered approximately 1.1 million of our meters in service:

(1)	Effective beginning in the 2004-2005 winter heating season.
(2)	Effective beginning in April 2004.

      The TXU Gas operations we acquired do not have WNA. However, their operations benefit from a rate structure that combines a monthly customer charge with a declining block rate schedule to mitigate the impact of warmer-than-normal weather on revenue. The combination of the monthly customer charge and the customer billing under the first block of the declining block rate schedule provides for the recovery of most of our fixed costs for such operations under most weather conditions.

      We receive gas deliveries for our six historical divisions through 37 pipeline transportation companies, both interstate and intrastate, to satisfy our natural gas needs. The pipeline transportation agreements are firm and many of them have “pipeline no-notice” storage service which provides for daily balancing between system requirements and nominated flowing supplies. These agreements have been negotiated with the shortest term necessary while still maintaining our right of first refusal.

      We purchase our gas supply for our six historical divisions from various producers and marketers. Supply arrangements are contracted on a firm basis with various terms at market prices. The firm supply consists of both base load and swing supply quantities. Base load quantities are those that flow at a constant level throughout the month and swing supply quantities provide the flexibility to change daily quantities to match increases or decreases in requirements related to weather conditions. Except for local production purchases, we select suppliers through a competitive bidding process by requesting proposals from suppliers that have demonstrated that they can provide reliable service. We select these suppliers based on their ability to deliver gas supply to our designated firm pipeline receipt points at the lowest cost. Major suppliers for our historical operations during fiscal 2004 were Anadarko Energy Services, BP Energy Company, ChevronTexaco Natural Gas, Duke Energy Trading and Marketing, Enbridge Marketing (US) L.P., Pioneer Natural Resources, Prior

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      The natural gas supply for our new Mid-Tex Division, formed from the TXU Gas operations we acquired, is delivered by the natural gas transmission and storage operations that we also acquired in the TXU Gas acquisition. This natural gas supply generally consists of a combination of base load, peaking and spot purchase agreements, as well as withdrawals of gas in storage held under gas storage capacity agreements. We estimate that the gas demand for the Mid-Tex Division for the upcoming winter heating season, assuming normal weather conditions, is approximately 113.0 Bcf. We have existing purchase agreements to cover a total gas demand of up to approximately 140.3 Bcf, consisting of approximately 40.5 Bcf under base load purchase agreements, up to approximately 47.2 Bcf under peaking purchase agreements, up to approximately 36.9 Bcf under spot purchase agreements and approximately 15.7 Bcf in storage. We anticipate that by the end of November 2004, additional amounts of gas totaling up to approximately 13.9 Bcf will be available under newly completed base load and peaking agreements and additional available gas in storage. The mixture of base load, peaking and spot purchase agreements, coupled with the withdrawal of storage gas, allows us the flexibility to adjust to changes in weather without requiring us to agree to excessive firm commitments. We anticipate that the natural gas supply for the upcoming winter heating season will consist of, in addition to withdrawals of gas in storage, a variety of suppliers, including independent producers, marketers and pipeline companies.

      To maintain our deliveries to high priority customers, we have the ability, and have exercised our right, to curtail deliveries to certain customers under the terms of interruptible contracts, applicable state statutes or regulations. Our estimate of natural gas demand for our Mid-Tex division is not necessarily indicative of our ability to meet current or anticipated market demands or immediate delivery requirements because of factors such as the physical limitations of gathering, storage and transmission systems, the duration and severity of cold weather, the availability of gas reserves from our suppliers, the ability to purchase additional supplies on a short-term basis and actions by federal and state regulatory authorities. Curtailment rights provide us flexibility to meet the human-needs requirements of our customers on a firm basis. Priority allocations imposed by federal and state regulatory agencies, as well as other factors beyond our control, may affect our ability to meet the demands of our customers.

      We also contract for storage service in underground storage facilities on many of the interstate pipelines serving us.

      We estimate the peak-day availability of natural gas supply from long-term contracts, short-term contracts and withdrawals from underground storage to be approximately 4.2 Bcf, including approximately 2.2 Bcf associated with the TXU Gas operations we acquired. The peak-day demand for our historical operations in fiscal 2004 was on January 6, 2004, when sales to customers reached approximately 1.8 Bcf. The peak-day demand for the TXU Gas operations in the 12 months ended September 30, 2004 was also on January 6, 2004 when sales to customers reached approximately 1.6 Bcf.

      The following is a brief description of our six natural gas utility divisions as well as the Mid-Tex Division acquired in October 2004. Additional information for our six natural gas utility divisions we operated at September 30, 2004 is presented under the caption “Operating Statistics”.

      Atmos Energy Colorado-Kansas Division. Our Colorado-Kansas Division operates in Colorado, Kansas and the southwestern corner of Missouri and is regulated by each respective state’s public service commission with respect to accounting, rates and charges, operating matters and the issuance of securities. We operate under terms of non-exclusive franchises granted by the various cities. In May 2003, we received approval for WNA in Kansas which is effective October through May of each year. Colorado Interstate Gas Company, Southern Star Central Pipeline, Public Service Company of Colorado and Northwest Pipeline are the principal transporters of the Colorado-Kansas Division’s gas supply requirements. Additionally, the Colorado-Kansas Division purchases substantial volumes from producers that are connected directly to its distribution system.

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      Atmos Energy Kentucky Division. Our Kentucky Division operates in Kentucky and is regulated by the Kentucky Public Service Commission, which regulates utility services, rates, issuance of securities and other matters. We operate in the various incorporated cities pursuant to non-exclusive franchises granted by these cities. Sales of natural gas for use as vehicle fuel in Kentucky are unregulated. We will operate under a performance-based rate program through 2006. Under the performance-based program, we and our customers jointly share in any actual gas cost savings achieved when compared to pre-determined benchmarks. Our rates are also subject to WNA. The Kentucky Division’s gas supply is delivered primarily by Texas Gas Transmission LLC, Tennessee Gas Pipeline Company, Trunkline Gas Company and Midwestern Pipeline.

      Atmos Energy Louisiana Division. Our Louisiana Division operates in Louisiana and includes the operations of the assets of Louisiana Gas Service Company acquired in July 2001 and our previously existing Trans La Division. Our Louisiana Division is regulated by the Louisiana Public Service Commission, which regulates utility services, rates and other matters. We operate most of our service areas pursuant to a non-exclusive franchise granted by the governing authority of each area. Direct sales of natural gas to industrial customers in Louisiana, who use gas for fuel or in manufacturing processes, and sales of natural gas for vehicle fuel are exempt from regulation and are recognized in our natural gas marketing segment. Louisiana Intrastate Gas Company, Acadian Pipeline, Trans Louisiana Gas Pipeline, Inc., Gulf South and Texas Gas Transmission LLC pipelines provide most of the Louisiana Division’s natural gas requirements.

      Atmos Energy Mid-States Division. Our Mid-States Division operates in Georgia, Illinois, Iowa, Missouri, Tennessee and Virginia. In each of these states, our rates, services and operations as a natural gas distribution company are subject to general regulation by each state’s public service commission. We operate in each community, where necessary, under a franchise granted by the municipality for a fixed term of years. In Tennessee and Georgia, we have WNA and a performance-based rate program, which provides incentives for us to find ways to lower costs and share the cost savings with our customers. Beginning in July 2005, we will have WNA in Virginia that will cover the entire year. Our Mid-States Division is served by 13 interstate pipelines; however, the majority of the volumes are transported through East Tennessee Pipeline, Southern Natural Gas, Tennessee Gas Pipeline and Columbia Gulf.

      Atmos Energy West Texas Division. Our West Texas Division, formerly known as the Atmos Energy Texas Division, operates in Texas in three primary service areas: the Amarillo service area, the Lubbock service area and the West Texas service area. The governing body of each municipality we serve has original jurisdiction over all utility rates, operations and services within its city limits, except with respect to sales of natural gas for vehicle fuel and agricultural use. We operate pursuant to non-exclusive franchises granted by the municipalities we serve, which are subject to renewal from time to time. The Railroad Commission of Texas has exclusive appellate jurisdiction over all rate and regulatory orders and ordinances of the municipalities and exclusive original jurisdiction over rates and services to customers not located within the limits of a municipality. During 2004, the West Texas Division received approval from the City of Lubbock, Texas and the 66 cities in our West Texas system, for WNA in these service areas, which will be effective October through May of each year, beginning with the 2004-2005 winter heating season. We also have WNA in our Amarillo service area. Our West Texas Division receives transportation service from ONEOK Pipeline. In addition, the West Texas Division purchases a significant portion of its natural gas supply from Pioneer Natural Resources which is connected directly to our Amarillo, Texas distribution system.

      Mississippi Valley Gas Company Division. Our Mississippi Valley Gas Company Division, acquired in December 2002, operates in Mississippi and is regulated by the Mississippi Public Service Commission with respect to rates, services and operations. We operate under non-exclusive franchises granted by the municipalities we serve. Since the acquisition, we have been operating under a rate structure that allows us over a five-year period to recover a portion of our integration costs associated with the acquisition, and operations and maintenance costs in excess of an agreed-upon benchmark. In addition, we are required to file for rate adjustments based on our expenses every six months. We also have WNA in Mississippi. This division’s gas supply is delivered by Gulf South Pipeline Company, Tennessee Gas Pipeline Company, Southern Natural Gas Company, Texas Eastern Transmission, Texas Gas Transmission LLC, Trunkline Gas Co. LLC and Enbridge Marketing LP.

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      Atmos Energy Mid-Tex Division. Our Mid-Tex Division, which represents the assets and operations that we acquired from TXU Gas on October 1, 2004, includes natural gas distribution operations that operate in the north-central, eastern and western parts of Texas and natural gas transmission and storage operations. This division purchases, distributes and sells natural gas to approximately 1.5 million residential and business customers in approximately 550 cities and towns, including the 11-county Dallas/ Fort Worth metropolitan area. Under a May 2004 rate filing, this division operates under a system-wide rate jurisdiction with the pipeline operations we acquired in the acquisition. Similar to our West Texas Division, the governing body of each municipality served through this division has original jurisdiction over all utility rates, operations and services within its city limits, except with respect to sales of natural gas for vehicle fuel and agricultural use. We operate pursuant to non-exclusive franchises granted by the municipalities we serve, which are subject to renewal from time to time. The Texas Railroad Commission has exclusive appellate jurisdiction over all rate and regulatory orders and ordinances of the municipalities and exclusive original jurisdiction over rates and services to customers not located within the limits of a municipality. This division does not have WNA. However, our operations benefit from a rate structure that mitigates the impact of warmer-than-normal weather on revenue. The majority of this division’s residential and business customers use natural gas for heating, and their needs are directly affected by the mildness or severity of the heating season.

      The natural gas transmission and storage operations that we acquired in the TXU Gas acquisition, which will be operated in the Atmos Pipeline — Texas Division, also transport natural gas to third parties and represent one of the largest intrastate pipeline operations in Texas. These operations include interconnected natural gas transmission lines, five underground storage reservoirs (including a salt dome facility), 24 compressor stations and related properties, all within Texas. These operations may create additional gas marketing and other opportunities for our non-regulated subsidiaries.

      The gas distribution and transmission lines we acquired have been constructed over lands of others pursuant to easements or along public highways, streets and rights-of-way as permitted by law. In addition to being heavily concentrated in the established natural gas-producing areas of central, northern and eastern Texas, the intrastate pipeline system we acquired also extends into or near the major producing areas of the Texas Gulf Coast and the Delaware and Val Verde Basins of West Texas. Nine basins located in Texas are estimated to contain a substantial portion of the nation’s remaining onshore natural gas reserves. This pipeline system provides access to all of these basins. We believe that we are well situated to receive large volumes into this pipeline system at the major hubs, such as Katy, Waha and Carthage as well as from storage facilities where we maintain high delivery capabilities.

      At closing of the acquisition, TXU Gas and some of its affiliates entered into transitional services agreements with us to provide call center, meter reading, customer billing, collections, information reporting, software, accounting, treasury, administrative and other services to the Mid-Tex Division. The initial term of each of these agreements will expire on October 1, 2005. Any particular service may be terminated during the initial term on 90 days notice, except for call center, customer billing, collections, information reporting, administrative and other services provided under our agreement with TXU Gas, which may not be terminated during the initial term. After the initial term, all of the service agreements continue on a month-to-month basis until canceled by either party with at least 30 days prior written notice. In addition, we have an option to extend the business services provided during the initial term by TXU Gas for a period of six months beyond the initial term, so long as we exercise our option at least 120 days before the expiration of the initial term. The agreements require us to pay the service providers’ costs for the services.

      However, on November 4, 2004, we entered into an agreement with Capgemini Energy L.P. pursuant to which we will assume the operations of the Waco, Texas call center on April 1, 2005 and will close the purchase of the related assets on October 1, 2005. In connection therewith, all call center services provided by TXU Gas under the transitional services agreement will terminate on April 1, 2005.

      Also at closing, we entered into a transitional access agreement with TXU Gas and some of its affiliates in order to allow the parties the same level of access to certain properties, facilities, software applications and other items that they were provided prior to the closing. The initial term of this agreement also expires on

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      In connection with the TXU Gas acquisition, we acquired the franchises held by TXU Gas to provide natural gas utility services to cities, towns and other municipalities in Texas. As part of the TXU Gas acquisition, we determined, on the basis of representations and warranties in the acquisition agreement and our diligence, that we needed the consent of two such cities for the acquisition of their franchises and we received the necessary consents prior to closing. However, we have received letters from two other cities, including the City of Dallas, raising the issue of whether, under the terms of their franchises, we should have also obtained their consents. We are currently in discussions with the City of Dallas on this issue. As these discussions are at an early stage, we cannot predict the outcome, but one alternative suggested by the City of Dallas is that we consider renewing our non-exclusive franchise with the City of Dallas prior to its 2009 expiration date. We do not currently know what changes, if any, the City of Dallas might propose in the terms of the franchise, were we to agree to an early renewal, or whether the City of Dallas will take other action with respect to the franchise, were we not to do so. However, we believe that the costs to us associated with a renewal would not be material. We have not received any similar inquiries from other cities, towns or municipalities, but we cannot be certain that we will not receive similar inquiries in the future.

Natural Gas Marketing Segment Overview

      Our natural gas marketing and other nonutility segments, which are organized under Atmos Energy Holdings, Inc. (AEH), have operations in 18 states. Through September 30, 2003, Atmos Energy Marketing, LLC, together with its wholly-owned subsidiaries Woodward Marketing, L.L.C. and Trans Louisiana Industrial Gas Company, Inc., comprised our natural gas marketing segment. Effective October 1, 2003, our natural gas marketing segment was reorganized. The operations of Atmos Energy Marketing, L.L.C. and Trans Louisiana Industrial Gas Company, Inc. were merged into Woodward Marketing, L.L.C., which was renamed Atmos Energy Marketing, LLC (AEM).

      We acquired a 45 percent interest in Woodward Marketing, L.L.C. in July 1997 as a result of the merger of Atmos and United Cities Gas Company, which had acquired that interest in May 1995. In April 2001, we acquired the remaining 55 percent interest that we did not own for 1,423,193 restricted shares of our common stock.

      AEM provides a variety of natural gas management services to municipalities, natural gas utility systems and industrial natural gas consumers primarily in the southeastern and midwestern states and to our Kentucky, Louisiana and Mid-States divisions. These services primarily consist of furnishing natural gas supplies at fixed and market-based prices, contract negotiation and administration, load forecasting, gas storage acquisition and management services, transportation services, peaking sales and balancing services, capacity utilization strategies and gas price management through the use of derivative products. We use proprietary and customer-owned transportation and storage assets to provide the various services our customers’ request. As a result, our revenues arise from the types of commercial transactions we have structured with our customers and include the value we extract by optimizing the storage and transportation capacity we own or control as well as revenues for services we deliver.

      We participate in transactions in which we combine the natural gas commodity and transportation costs to minimize our costs incurred to serve our customers. Additionally, we participate in natural gas storage transactions in which we seek to capture the pricing differences that occur over time. We purchase or sell physical natural gas and then sell or purchase financial contracts at a price sufficient to cover our carrying costs and provide a gross profit margin. Through the use of transportation and storage services and derivatives, we are able to capture gross profit margin through the arbitrage of pricing differences in various locations and by recognizing pricing differences that occur over time.

      AEM’s management of natural gas requirements involves the sale of natural gas and the management of storage and transportation supplies under contracts with customers generally having one to two year terms. At September 30, 2004, Atmos Energy Marketing had a total of 638 industrial customers and 80 municipal customers. Atmos Energy Marketing also sells natural gas to some of its industrial customers on a delivered burner tip basis under contract terms from 30 days to two years.

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Other Nonutility Segment Overview

      Our other nonutility segment consists primarily of the operations of Atmos Pipeline and Storage, L.L.C. and Atmos Energy Services, LLC, which are wholly-owned by our subsidiary, Atmos Energy Holdings, Inc. Through Atmos Pipeline and Storage, we own or have an interest in underground storage fields in Kentucky and Louisiana. Atmos Pipeline and Storage’s underground storage fields in Kansas were transferred to our Atmos Energy Colorado-Kansas utility division during fiscal 2004. Atmos Pipeline and Storage provides storage services to our customers and captures pricing arbitrage through the use of derivatives. We also use these storage facilities to reduce the need to contract for additional pipeline capacity to meet customer demand during peak periods.

      Through Atmos Energy Services, we provide natural gas management services to our utility operations. Prior to the second quarter of fiscal 2004, this entity conducted limited operations. However, beginning April 1, 2004, Atmos Energy Services began providing natural gas supply management services to our utility operations in a limited number of states. These services include aggregating and purchasing gas supply, arranging transportation and storage logistics and ultimately delivering the gas to our utility service areas at competitive prices. We have expanded these services to substantially all of our utility service areas as of the end of fiscal 2004.

      Through January 20, 2004, United Cities Propane Gas, Inc., a wholly-owned subsidiary of Atmos Energy Holdings, Inc., owned an approximate 19 percent membership interest in U.S. Propane L.P. (USP), a joint venture formed in February 2000 with other utility companies to own a limited partnership interest in Heritage Propane Partners, L.P. (Heritage), a publicly-traded marketer of propane through a nationwide retail distribution network. During fiscal 2004, we sold our interest in USP and Heritage. As a result of these transactions, we no longer have an interest in the propane business.

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Operating Statistics

      The following tables present certain operating statistics for our historical utility, natural gas marketing and other nonutility segments for each of the five fiscal years from 2000 through 2004. These tables do not include data for the Mid-Tex Division acquired on October 1, 2004. However, note that based upon the number of meters in service in the Mid-Tex Division, approximately 90 percent of its customers are classified as residential, with approximately 9 percent commercial and industrial, which is substantially similar to that of our other six divisions.

See footnotes following these tables.

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