|UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D. C. 20549
FORM 10-Q
|----------------------------------------------------------------------------------

||X| | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES     | 
|--- | ---------------------------------------------------------------------- | 
|    | EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2005

|OR
|--

||  | | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES | 
|---- | ------------------------------------------------------------------- | 
|     | EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM ___ TO ___      | 

| | Commission |                         |               | IRS Employer   | 
| | ---------- | ----------------------- | ------------- | -------------- | 
| | File       |                         | State of      | Identification | 
| | Number     | Registrant              | Incorporation | Number         | 
| |            |                         |               |                | 
| |            |                         |               |                | 
| | 1-7810     | Energen Corporation     | Alabama       | 63-0757759     | 
| | 2-38960    | Alabama Gas Corporation | Alabama       | 63-0022000     | 

|605 Richard Arrington Jr. Boulevard North
Birmingham, Alabama 35203-2707
Telephone Number 205/326-2700
http://www.energen.com
Alabama Gas Corporation, a wholly owned subsidiary of Energen Corporation, meets the conditions set forth in General Instruction H(1)(a) and (b) of Form 10-Q and is therefore filing this Form with reduced disclosure format pursuant to General Instruction H(2).
Indicate by a check mark whether the registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities and Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. YESXNO ____
Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act).
Energen Corporation YESXNO ___
Alabama Gas Corporation YES___ NOX
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Energen Corporation YESNOX
Alabama Gas Corporation YES  NOX
Indicate the number of shares outstanding of each of the issuers' classes of common stock, as of November 2, 2005
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Energen Corporation     | $0.01 par value | 73,283,545 shares | 
| | ----------------------- | --------------- | ----------------- | 
| | Alabama Gas Corporation | $0.01 par value | 1,972,052 shares  | 



|ENERGEN CORPORATION AND ALABAMA GAS CORPORATION   
|--------------------------------------------------
|FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2005
|                                                  
|TABLE OF CONTENTS                                 
|                                                  
|                                                  
|                                                  
|PART I: FINANCIAL INFORMATION                     
|                                                  
|                                                  
|Item 1.                                           
|                                                  
|                                                  
|                                                  
|                                                  
|                                                  
|                                                  
|                                                  
|Item 2.                                           
|                                                  
|Item 3.                                           
|Item 4.                                           
|                                                  
|                                                  
|Item 2.                                           
|                                                  
|Item 6.                                           
|                                                  
|SIGNATURES                                        













|PART I. FINANCIAL INFORMATION                         |                    |               |                  
|----------------------------------------------------- | ------------------ | ------------- | -----------------
|ITEM 1. FINANCIAL STATEMENTS                          |                    |               |                  
|                                                      |                    |               |                  
|CONSOLIDATED CONDENSED STATEMENTS OF INCOME           |                    |              
|ENERGEN CORPORATION                                   |                    |               |                  
|(Unaudited)                                           |                    |               |                  
|                                                      | Three months ended |               | Nine months ended
|                                                      | September 30,      |               | September 30,    
|(in thousands, except per share data)                 | 2005               | 2004          |                  
|Operating Revenues                                    |                    |               |                  
|Oil and gas operations                                | $  126,260         | $  104,181    |                  
|Natural gas distribution                              | 64,421             | 62,162        |                  
|Total operating revenues                              | 190,681            | 166,343       |                  
|                                                      |                    |               |                  
|Operating Expenses                                    |                    |               |                  
|Cost of gas                                           | 27,386             | 26,545        |                  
|Operations and maintenance                            | 67,818             | 60,780        |                  
|Depreciation, depletion and amortization              | 34,215             | 30,849        |                  
|Taxes, other than income taxes                        | 19,523             | 15,343        |                  
|Accretion expense                                     | 668                | 613           |                  
|Total operating expenses                              | 149,610            | 134,130       |                  
|Operating Income                                      | 41,071             | 32,213        |                  
|                                                      |                    |               |                  
|Other Income (Expense)                                |                    |               |                  
|Interest expense                                      | (11,600)           | (10,515)      |                  
|Other income                                          | 822                | 702           |                  
|Other expense                                         | (104)              | (225)         |                  
|Total other expense                                   | (10,882)           | (10,038)      |                  
|                                                      |                    |               |                  
|Income From Continuing Operations Before Income Taxes | 30,189             | 22,175        |                  
|Income tax expense                                    | 11,116             | 8,498         |                  
|Income From Continuing Operations                     | 19,073             | 13,677        |                  
|                                                      |                    |               |                  
|Discontinued Operations, net of taxes                 |                    |               |                  
|Income (loss) from discontinued operations            | 3                  | 55            |                  
|Gain (loss) on disposal of discontinued operations    | 10                 | 8             |                  
|Income From Discontinued Operations                   | 13                 | 63            |                  
|                                                      |                    |               |                  
|Net Income                                            | $    19,086        | $    13,740   |                  
|                                                      |                    |               |                  
|Diluted Earnings Per Average Common Share*            |                    |               |                  
|Continuing operations                                 | $      0.26        | $      0.19   |                  
|Discontinued operations                               | -                  | -             |                  
|Net Income                                            | $        0.26      | $        0.19 |                  
|Basic Earnings Per Average Common Share*              |                    |               |                  
|Continuing operations                                 | $      0.26        | $      0.19   |                  
|Discontinued operations                               | -                  | -             |                  
|Net Income                                            | $     0.26         | $     0.19    |                  
|Dividends Per Common Share*                           | $       0.10       | $  0.09625    |                  
|Diluted Average Common Shares Outstanding*            | 73,878             | 73,401        |                  
|Basic Average Common Shares Outstanding*              | 73,024             | 72,537        |                  

*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)

The accompanying notes are an integral part of these condensed financial statements.



|CONSOLIDATED CONDENSED BALANCE SHEETS                                                                                                  |                    |                  
|-------------------------------------------------------------------------------------------------------------------------------------- | ------------------ | -----------------
|ENERGEN CORPORATION                                                                                                                    |                    |                  
|(Unaudited)                                                                                                                            |                    |                  
|                                                                                                                                       |                    |                  
|(in thousands)                                                                                                                         | September 30, 2005 | December 31, 2004
|                                                                                                                                       |                    |                  
|ASSETS                                                                                                                                 |                    |                  
|Current Assets                                                                                                                         |                    |                  
|Cash and cash equivalents                                                                                                              | $       38,233     | $       4,489    
|Accounts receivable, net of allowance for doubtful
    accounts of $10,774 at September 30, 2005, and
    $10,472 at December 31, 2004 | 166,089            | 217,360          
|Inventories, at average cost                                                                                                           |                    |                  
|Storage gas inventory                                                                                                                  | 74,062             | 51,093           
|Materials and supplies                                                                                                                 | 7,462              | 7,843            
|Liquified natural gas in storage                                                                                                       | 3,043              | 3,688            
|Deferred income taxes                                                                                                                  | 113,195            | 36,285           
|Prepayments and other                                                                                                                  | 60,685             | 29,150           
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|Total current assets                                                                                                                   | 462,769            | 349,908          
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|Property, Plant and Equipment                                                                                                          |                    |                  
|Oil and gas properties, successful efforts method                                                                                      | 1,710,461          | 1,591,119        
|Less accumulated depreciation, depletion and amortization                                                                              | 444,915            | 381,734          
|                                                                                                                                       |                    |                  
|Oil and gas properties, net                                                                                                            | 1,265,546          | 1,209,385        
|                                                                                                                                       |                    |                  
|Utility plant                                                                                                                          | 975,850            | 941,862          
|Less accumulated depreciation                                                                                                          | 379,071            | 373,589          
|                                                                                                                                       |                    |                  
|Utility plant, net                                                                                                                     | 596,779            | 568,273          
|                                                                                                                                       |                    |                  
|Other property, net                                                                                                                    | 6,114              | 5,401            
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|Total property, plant and equipment, net                                                                                               | 1,868,439          | 1,783,059        
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|Other Assets                                                                                                                           |                    |                  
|Regulatory asset                                                                                                                       | 27,007             | 19,650           
|Deferred charges and other                                                                                                             | 33,982             | 29,122           
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|Total other assets                                                                                                                     | 60,989             | 48,772           
|                                                                                                                                       |                    |                  
|                                                                                                                                       |                    |                  
|TOTAL ASSETS                                                                                                                           | $   2,392,197      | $   2,181,739    
|                                                                                                                                       |                    |                  





















|CONSOLIDATED CONDENSED BALANCE SHEETS                                                                                                                                     |                    |                  
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ | -----------------
|ENERGEN CORPORATION                                                                                                                                                       |                    |                  
|(Unaudited)                                                                                                                                                               |                    |                  
|                                                                                                                                                                          |                    |                  
|(in thousands, except share and per share data)                                                                                                                           | September 30, 2005 | December 31, 2004
|                                                                                                                                                                          |                    |                  
|LIABILITIES AND SHAREHOLDERS' EQUITY                                                                                                                                      |                    |                  
|Current Liabilities                                                                                                                                                       |                    |                  
|Long-term debt due within one year                                                                                                                                        | $      15,000      | $      10,000    
|Notes payable to banks                                                                                                                                                    | -                  | 135,000          
|Accounts payable                                                                                                                                                          | 369,319            | 159,871          
|Accrued taxes                                                                                                                                                             | 34,882             | 34,541           
|Customers' deposits                                                                                                                                                       | 19,331             | 19,549           
|Amounts due customers                                                                                                                                                     | 11,654             | 10,363           
|Accrued wages and benefits                                                                                                                                                | 35,790             | 28,941           
|Regulatory liability                                                                                                                                                      | 82,267             | 47,060           
|Other                                                                                                                                                                     | 50,556             | 53,293           
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Total current liabilities                                                                                                                                                 | 618,799            | 498,618          
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Long-term debt                                                                                                                                                            | 659,936            | 612,891          
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Deferred Credits and Other Liabilities                                                                                                                                    |                    |                  
|Asset retirement obligation                                                                                                                                               | 37,207             | 34,841           
|Minimum pension liability                                                                                                                                                 | 28,769             | 14,216           
|Regulatory liability                                                                                                                                                      | 117,932            | 111,928          
|Deferred income taxes                                                                                                                                                     | 127,566            | 95,417           
|Other                                                                                                                                                                     | 48,213             | 10,162           
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Total deferred credits and other liabilities                                                                                                                              | 359,687            | 266,564          
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Commitments and Contingencies                                                                                                                                             |                    |                  
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|Shareholders' equity                                                                                                                                                      |                    |                  
|Preferred stock, cumulative $0.01 par value, 5,000,000
    shares authorized                                                                                              | -                  | -                
|Common shareholders' equity*                                                                                                                                              |                    |                  
|Common stock, $0.01 par value; 150,000,000 shares authorized, 73,317,588 shares outstanding at September 30, 2005, and 73,165,958 shares outstanding at December 31, 2004 | 733                | 732              
|Premium on capital stock                                                                                                                                                  | 387,810            | 380,965          
|Capital surplus                                                                                                                                                           | 2,802              | 2,802            
|Retained earnings                                                                                                                                                         | 553,357            | 459,626          
|Accumulated other comprehensive loss, net of tax                                                                                                                          |                    |                  
|Unrealized loss on hedges                                                                                                                                                 | (172,879)          | (25,466)         
|Minimum pension liability                                                                                                                                                 | (14,446)           | (11,864)         
|Deferred compensation on restricted stock                                                                                                                                 | (2,573)            | (2,675)          
|Deferred compensation plan                                                                                                                                                | 11,830             | 28,919           
|Treasury stock, at cost* (1,068,594 shares at September 30, 2005, and 1,000,952 shares at December 31, 2004)                                                              | (12,859)           | (29,373)         
|                                                                                                                                                                          |                    |                  
|Total shareholders' equity                                                                                                                                                | 753,775            | 803,666          
|                                                                                                                                                                          |                    |                  
|                                                                                                                                                                          |                    |                  
|TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                                                                                                                | $   2,392,197      | $   2,181,739    
|                                                                                                                                                                          |                    |                  

*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)

The accompanying notes are an integral part of these condensed financial statements.

|CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS     |              
|--------------------------------------------------- | -------------
|ENERGEN CORPORATION                                 |              
|(Unaudited)                                         |              
|                                                    |              
|Nine months ended September 30, (in thousands)      | 2005         
|                                                    |              
|Operating Activities                                |              
|Net income                                          | $     115,709
|Adjustments to reconcile net income to net cash     |              
|provided by operating activities:                   |              
|Depreciation, depletion and amortization            | 98,769       
|Deferred income taxes                               | 46,960       
|Deferred investment tax credits                     | -            
|Change in derivative fair value                     | 22,476       
|Loss (gain) on sale of assets                       | (1,590)      
|Other, net                                          | 7,212        
|Net change in:                                      |              
|Accounts receivable, net                            | 28,865       
|Inventories                                         | (21,943)     
|Accounts payable                                    | (13,700)     
|Amounts due customers                               | 25,169       
|Other current assets and liabilities                | 4,799        
|                                                    |              
|                                                    |              
|Net cash provided by operating activities           | 312,726      
|                                                    |              
|                                                    |              
|Investing Activities                                |              
|Additions to property, plant and equipment          | (177,642)    
|Acquisitions, net of cash acquired                  | (5,457)      
|Proceeds from sale of assets                        | 10,338       
|Other, net                                          | (1,102)      
|                                                    |              
|                                                    |              
|Net cash used in investing activities               | (173,863)    
|                                                    |              
|                                                    |              
|Financing Activities                                |              
|Payment of dividends on common stock                | (21,978)     
|Issuance of common stock                            | 3,952        
|Purchase of treasury stock                          | (2,168)      
|Reduction of long-term debt                         | (28,060)     
|Proceeds from issuance of long-term debt            | 80,000       
|Debt issuance costs                                 | (1,865)      
|Net change in short-term debt                       | (135,000)    
|                                                    |              
|                                                    |              
|Net cash provided by (used in) financing activities | (105,119)    
|                                                    |              
|                                                    |              
|Net change in cash and cash equivalents             | 33,744       
|Cash and cash equivalents at beginning of period    | 4,489        
|                                                    |              
|                                                    |              
|Cash and Cash Equivalents at End of Period          | $      38,233
|                                                    |              









|CONDENSED STATEMENTS OF INCOME |                    |      |                  
|------------------------------ | ------------------ | ---- | -----------------
|ALABAMA GAS CORPORATION        |                    |      |                  
|(Unaudited)                    |                    |      |                  
|                               | Three months ended |      | Nine months ended
|                               | September 30,      |      | September 30,    
|(in thousands)                 | 2005               | 2004 |                  

|Operating Revenues                           | $ 64,421  | $ 62,162  |  | $ 429,746 | $ 410,108
|-------------------------------------------- | --------- | --------- |  | --------- | ---------
|                                             |           |           |  |           |          
|Operating Expenses                           |           |           |  |           |          
|Cost of gas                                  | 28,047    | 27,190    |  | 216,360   | 207,073  
|Operations and maintenance                   | 30,898    | 29,563    |  | 90,986    | 88,422   
|Depreciation                                 | 10,668    | 9,985     |  | 31,724    | 29,453   
|Income taxes                                 |           |           |  |           |          
|Current                                      | (9,788)   | (9,604)   |  | 17,378    | 9,810    
|Deferred, net                                | 4,351     | 4,800     |  | 2,181     | 7,878    
|Deferred investment tax credits, net         | -         | (84)      |  | -         | (308)    
|Taxes, other than income taxes               | 5,833     | 5,554     |  | 29,667    | 28,701   
|                                             |           |           |  |           |          
|Total operating expenses                     | 70,009    | 67,404    |  | 388,296   | 371,029  
|                                             |           |           |  |           |          
|Operating Income (Expense)                   | (5,588)   | (5,242)   |  | 41,450    | 39,079   
|                                             |           |           |  |           |          
|Other Income (Expense)                       |           |           |  |           |          
|Allowance for funds used during construction | 195       | 347       |  | 568       | 1,008    
|Other income                                 | 372       | 426       |  | 1,069     | 1,527    
|Other expense                                | (104)     | (248)     |  | (629)     | (1,934)  
|                                             |           |           |  |           |          
|Total other income                           | 463       | 525       |  | 1,008     | 601      
|                                             |           |           |  |           |          
|Interest Charges                             |           |           |  |           |          
|Interest on long-term debt                   | 3,291     | 2,462     |  | 10,263    | 8,212    
|Other interest expense                       | 394       | 566       |  | 928       | 2,335    
|                                             |           |           |  |           |          
|Total interest charges                       | 3,685     | 3,028     |  | 11,191    | 10,547   
|                                             |           |           |  |           |          
|Net Income (Loss)                            | $ (8,810) | $ (7,745) |  | $ 31,267  | $ 29,133 



The accompanying notes are an integral part of these condensed financial statements.





|CONDENSED BALANCE SHEETS         |                    |                  
|-------------------------------- | ------------------ | -----------------
|ALABAMA GAS CORPORATION          |                    |                  
|(Unaudited)                      |                    |                  
|                                 |                    |                  
|(in thousands)                   | September 30, 2005 | December 31, 2004
|                                 |                    |                  
|ASSETS                           |                    |                  
|Property, Plant and Equipment    |                    |                  
|Utility plant                    | $    975,850       | $    941,862     
|Less accumulated depreciation    | 379,071            | 373,589          
|                                 |                    |                  
|                                 |                    |                  
|Utility plant, net               | 596,779            | 568,273          
|                                 |                    |                  
|                                 |                    |                  
|Other property, net              | 170                | 325              
|                                 |                    |                  
|                                 |                    |                  
|Current Assets                   |                    |                  
|Cash and cash equivalents        | 4,803              | 3,467            
|Accounts receivable              |                    |                  
|Gas                              | 68,701             | 142,736          
|Other                            | 16,124             | 11,952           
|Affiliated companies             | -                  | 2,190            
|Allowance for doubtful accounts  | (10,000)           | (9,600)          
|Inventories, at average cost     |                    |                  
|Storage gas inventory            | 74,062             | 51,093           
|Materials and supplies           | 4,141              | 4,281            
|Liquified natural gas in storage | 3,043              | 3,688            
|Deferred income taxes            | 13,368             | 15,233           
|Regulatory asset                 | 341                | -                
|Prepayments and other            | 52,528             | 21,901           
|                                 |                    |                  
|                                 |                    |                  
|Total current assets             | 227,111            | 246,941          
|                                 |                    |                  
|                                 |                    |                  
|Other Assets                     |                    |                  
|Regulatory asset                 | 27,007             | 19,650           
|Deferred charges and other       | 5,661              | 4,558            
|                                 |                    |                  
|                                 |                    |                  
|Total other assets               | 32,668             | 24,208           
|                                 |                    |                  
|                                 |                    |                  
|TOTAL ASSETS                     | $    856,728       | $    839,747     
|                                 |                    |                  









|CONDENSED BALANCE SHEETS                                                                                                                           |                    |                  
|-------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ | -----------------
|ALABAMA GAS CORPORATION                                                                                                                            |                    |                  
|(Unaudited)                                                                                                                                        |                    |                  
|                                                                                                                                                   |                    |                  
|(in thousands, except share data)                                                                                                                  | September 30, 2005 | December 31, 2004
|                                                                                                                                                   |                    |                  
|LIABILITIES AND CAPITALIZATION                                                                                                                     |                    |                  
|Capitalization                                                                                                                                     |                    |                  
|Preferred stock, cumulative $0.01 par value, 120,000 shares
    authorized                                                                         | $             -    | $-               
|Common shareholder's equity                                                                                                                        |                    |                  
|Common stock, $0.01 par value; 3,000,000 shares
       authorized, 1,972,052 shares outstanding at
       September 30, 2005 and December 31, 2004 | 20                 | 20               
|Premium on capital stock                                                                                                                           | 31,682             | 31,682           
|Capital surplus                                                                                                                                    | 2,802              | 2,802            
|Retained earnings                                                                                                                                  | 232,812            | 223,515          
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Total common shareholder's equity                                                                                                                  | 267,316            | 258,019          
|Long-term debt                                                                                                                                     | 186,390            | 129,450          
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Total capitalization                                                                                                                               | 453,706            | 387,469          
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Current Liabilities                                                                                                                                |                    |                  
|Long-term debt due within one year                                                                                                                 | 5,000              | 10,000           
|Notes payable to banks                                                                                                                             | -                  | 82,000           
|Accounts payable                                                                                                                                   | 58,730             | 81,591           
|Affiliated companies                                                                                                                               | 6,565              | -                
|Accrued taxes                                                                                                                                      | 30,630             | 27,410           
|Customers' deposits                                                                                                                                | 19,331             | 19,549           
|Amounts due customers                                                                                                                              | 11,654             | 10,363           
|Accrued wages and benefits                                                                                                                         | 6,820              | 7,724            
|Regulatory liability                                                                                                                               | 82,267             | 47,060           
|Other                                                                                                                                              | 11,043             | 11,906           
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Total current liabilities                                                                                                                          | 232,040            | 297,603          
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Deferred Credits and Other Liabilities                                                                                                             |                    |                  
|Deferred income taxes                                                                                                                              | 40,404             | 40,070           
|Minimum pension liability                                                                                                                          | 9,010              | -                
|Regulatory liability                                                                                                                               | 117,932            | 111,928          
|Other                                                                                                                                              | 3,636              | 2,677            
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Total deferred credits and other liabilities                                                                                                       | 170,982            | 154,675          
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|Commitments and Contingencies                                                                                                                      |                    |                  
|                                                                                                                                                   |                    |                  
|                                                                                                                                                   |                    |                  
|TOTAL LIABILITIES AND CAPITALIZATION                                                                                                               | $    856,728       | $    839,747     
|                                                                                                                                                   |                    |                  









|CONDENSED STATEMENTS OF CASH FLOWS               |              |               
|------------------------------------------------ | ------------ | --------------
|ALABAMA GAS CORPORATION                          |              |               
|(Unaudited)                                      |              |               
|                                                 |              |               
|Nine months ended September 30, (in thousands)   | 2005         | 2004          
|                                                 |              |               
|Operating Activities                             |              |               
|Net income                                       | $     31,267 | $     29,133  
|Adjustments to reconcile net income to net cash  |              |               
|provided by (used in) operating activities:      |              |               
|Depreciation and amortization                    | 31,724       | 29,453        
|Deferred income taxes                            | 2,181        | 7,878         
|Deferred investment tax credits                  | -            | (308)         
|Other, net                                       | 1,430        | 6,414         
|Net change in:                                   |              |               
|Accounts receivable                              | 47,857       | 53,790        
|Inventories                                      | (22,184)     | (18,702)      
|Accounts payable                                 | (22,862)     | (18,005)      
|Amounts due customers                            | 25,169       | (5,413)       
|Other current assets and liabilities             | 5,760        | 5,768         
|                                                 |              |               
|                                                 |              |               
|Net cash provided by operating activities        | 100,342      | 90,008        
|                                                 |              |               
|                                                 |              |               
|Investing Activities                             |              |               
|Additions to property, plant and equipment       | (52,921)     | (40,991)      
|Other, net                                       | (1,102)      | (1,778)       
|                                                 |              |               
|                                                 |              |               
|Net cash used in investing activities            | (54,023)     | (42,769)      
|                                                 |              |               
|                                                 |              |               
|Financing Activities                             |              |               
|Dividends                                        | (21,970)     | (20,426)      
|Reduction of long-term debt                      | (28,060)     | (30,073)      
|Proceeds from issuance of long-term debt         | 80,000       | -             
|Debt issuance costs                              | (1,708)      | -             
|Net advances from (to) affiliates                | 8,755        | (38,061)      
|Net change in short-term debt                    | (82,000)     | 44,000        
|                                                 |              |               
|                                                 |              |               
|Net cash used in financing activities            | (44,983)     | (44,560)      
|                                                 |              |               
|                                                 |              |               
|Net change in cash and cash equivalents          | 1,336        | 2,679         
|Cash and cash equivalents at beginning of period | 3,467        | 1,440         
|                                                 |              |               
|                                                 |              |               
|Cash and Cash Equivalents at End of Period       | $     4,803  | $        4,119
|                                                 |              |               











|NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS
ENERGEN CORPORATION AND ALABAMA GAS CORPORATION
|-------------------------------------------------------------------------------------------------
|                                                                                                 

|1. BASIS OF PRESENTATION
The unaudited condensed financial statements and notes should be read in conjunction with the financial statements and notes thereto for the years ended December 31, 2004, 2003 and 2002 included in the 2004 Annual Report of Energen Corporation (the Company) and Alabama Gas Corporation (Alagasco) on Form 10-K. Alagasco has a September 30 fiscal year for rate-setting purposes (rate year) and reports on a calendar year for the Securities and Exchange Commission and all other financial accounting reporting purposes. The accompanying unaudited condensed financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the disclosures required for complete financial statements. The Company's natural gas distribution business is seasonal in character and influenced by weather conditions. Results of operations for interim periods are not necessarily indicative of the results that may be expected for the year.
The quarterly information reflects the application of Statement of Financial Accounting Standard (SFAS) No. 144, "Accounting for Impairment or Disposal of Long-Lived Assets." SFAS No. 144 requires that gains and losses from the sale of certain oil and gas properties and write-downs of certain properties held-for-sale be reported as discontinued operations, with income or loss from operations of the associated properties reported as income or loss from discontinued operations in the current and prior periods. All other adjustments to the unaudited financial statements that are, in the opinion of management, necessary for a fair statement of the results for the interim periods have been recorded. Such adjustments consisted of normal recurring items. Certain reclassifications were made to conform prior years' financial statements to the current-quarter presentation.
During the quarter ended September 30, 2005, the Company reduced Treasury Stock and Deferred Compensation Plan, both reflected in shareholders' equity, by $25 million to correct the carrying value of the equity-based deferred compensation previously reported at market value to historical cost as prescribed by the Emerging Issues Task Force No. 97-14, "Accounting for Deferred Compensation Arrangements Where Amounts Earned Are Held in a Rabbi Trust and Invested."  This change had no impact on current or previously reported net income, cash flows or total shareholders' equity.
STOCK-BASED COMPENSATIONThe Company adopted the fair value recognition provisions of SFAS No. 123 (as amended), "Accounting for Stock-Based Compensation," prospectively for all stock-based employee compensation effective as of January 1, 2003. Awards under the Company's plan vest over periods ranging from one to six years. The cost related to stock-based employee compensation included in the determination of proforma net income for the three months and nine months ended September 30, 2005 and 2004, approximates that which would have been recognized if the fair value method had been applied to all awards since the original effective date of SFAS No. 123. The following table illustrates the effect on net income and diluted and basic earnings per share as if the fair value based method had been applied to all outstanding and unvested awards in each period:
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|(in thousands)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Net income                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|As reported                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Stock-based compensation expense included in reported net income, net of tax                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Stock-based compensation expense determined under fair value based method, net of tax                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Pro forma                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Diluted earnings per average common share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|As reported                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Pro forma                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Basic earnings per average common share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|As reported                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Pro forma                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

|3. REGULATORY
All of Alagasco's utility operations are conducted in the state of Alabama. Alagasco is subject to regulation by the Alabama Public Service Commission (APSC) which established the Rate Stabilization and Equalization (RSE) rate-setting process in 1983. RSE was extended with modifications in 2002, 1996, 1990, 1987 and 1985. On June 10, 2002, the APSC extended Alagasco's rate-setting methodology, RSE, without change, for a six-year period through January 1, 2008. Under the terms of that extension, RSE will continue after January 1, 2008, unless, after notice to the Company and a hearing, the Commission votes to either modify or discontinue its operation. Alagasco is on a September 30 fiscal year for rate-setting purposes (rate year) and reports on a calendar year for the Securities and Exchange Commission and all other financial accounting reporting purposes. Alagasco's allowed range of return on average equity remains 13.15 percent to 13.65 percent throughout the term of the order, subject to change in the event that the Commission, following a generic rate of return hearing, adjusts the equity returns of all major energy utilities operating under a similar methodology. Under RSE, the APSC conducts quarterly reviews to determine, based on Alagasco's projections and year-to-date performance, whether Alagasco's return on average equity at the end of the rate year will be within the allowed range of return. Reductions in rates can be made quarterly to bring the projected return within the allowed range; increases, however, are allowed only once each rate year, effective December 1, and cannot exceed 4 percent of prior-year revenues. As of September 30, 2005, Alagasco had a $3.3 million reduction in revenues to bring the return on average equity to midpoint within the allowed range of return. Alagasco did not have a reduction in rates related to the return on average equity for the rate year ended 2004. A $12.3 million and an $11.2 million annual increase in revenues became effective December 1, 2004 and 2003, respectively. RSE limits the utility's equity upon which a return is permitted to 60 percent of total capitalization and provides for certain cost control measures designed to monitor Alagasco's operations and maintenance (O&M) expense. Under the inflation-based cost control measurement established by the APSC, if the percentage change in O&M expense per customer falls within a range of 1.25 points above or below the percentage change in the Consumer Price Index For All Urban Consumers (index range), no adjustment is required. If the change in O&M expense per customer exceeds the index range, three-quarters of the difference is returned to customers. To the extent the change is less than the index range, the utility benefits by one-half of the difference through future rate adjustments. The increase in O&M expense per customer was above the index range for the rate year ended September 30, 2004; as a result, the utility returned $1.2 million pre-tax to customers through rate adjustments under the provisions of RSE. Alagasco's O&M expense fell within the index range for the rate year ended September 30, 2005.
Alagasco calculates a temperature adjustment to customers' monthly bills to substantially remove the effect of departures from normal temperatures on Alagasco's earnings. Adjustments to customers' bills are made in the same billing cycle in which the weather variation occurs. The temperature adjustment applies primarily to residential, small commercial and small industrial customers. This adjustment, however, is subject to certain limitations including regulatory limits on adjustments to increase customers' bills, the impact of non-temperature weather conditions such as wind velocity or cloud cover and the impact of any elasticity of demand as a result of high commodity prices. Alagasco's rate schedules for natural gas distribution charges contain a Gas Supply Adjustment (GSA) rider, established in 1993, which permits the pass-through to customers of changes in the cost of gas supply.
4. DERIVATIVE COMMODITY INSTRUMENTS
Energen Resources Corporation, Energen's oil and gas subsidiary, periodically enters into derivative commodity instruments that qualify as cash flow hedges under SFAS No. 133, "Accounting for Derivative Instruments and Hedging Activities," to hedge its exposure to price fluctuations on oil, natural gas and natural gas liquids production. In addition, Alagasco periodically enters into cash flow derivative commodity instruments to hedge its exposure to price fluctuations on its gas supply. Such instruments may include regulated natural gas and crude oil futures contracts traded on the New York Mercantile Exchange (NYMEX) and over-the-counter swaps, collars and basis hedges with major energy derivative product specialists. The counterparties to the commodity instruments are investment banks and energy-trading firms. In some contracts, the amount of credit allowed before collateral must be posted for out-of-the-money hedges varies depending on the credit rating of the Company or Alagasco. In cases where this arrangement exists, generally the credit ratings must be maintained at investment grade status to have available counterparty credit. At September 30, 2005, the Company had $1.8 million posted in collateral payments with a certain counterparty.
Energen Resources applies SFAS No. 133 which requires all derivatives to be recognized on the balance sheet and measured at fair value. If a derivative is designated as a cash flow hedge, the effectiveness of the hedge, or the degree that the gain (loss) for the hedging instrument offsets the loss (gain) on the hedged item is measured at each reporting period. The effective portion of the gain or loss on the derivative instrument is recognized in other comprehensive income (OCI) as a component of equity and subsequently reclassified into earnings as operating revenues when the forecasted transaction affects earnings. The ineffective portion of a derivative's change in fair value is required to be recognized in earnings immediately. Derivatives that do not qualify for hedge treatment under SFAS No. 133 must be recorded at fair value with gains or losses recognized in operating revenues in the period of change.
As of September 30, 2005, $148.1 million, net of tax, of deferred net losses on derivative instruments recorded in accumulated other comprehensive income are expected to be reclassified to operating revenues during the next 12-month period. The actual amount that will be reclassified to earnings over the next year could vary materially from this amount due to changes in market conditions. Gains and losses on derivative instruments that are not accounted for as cash flow hedges as well as the ineffective portion of the change in fair value of derivatives accounted for as cash flow hedges, are included in operating revenues in the consolidated financial statements. For the ineffective portion of the change in fair value of derivatives accounted for as cash flow hedges, Energen Resources recorded a $1 million after-tax loss for the three months ended September 30, 2005, and a $3 million after-tax loss year-to-date. Also, Energen Resources recorded an after-tax loss of $11.1 million for the quarter and a $16.7 million after-tax loss year-to-date on contracts that did not meet the definition of cash flow hedges under SFAS No. 133. As of September 30, 2005, the Company had 2.9 billion cubic feet (Bcf) of gas hedges with a fair value after-tax loss of $11.4 million which expire by year-end that did not meet the definition of a cash flow hedge but are considered by the Company to be viable economic hedges. In the current year-to-date, the Company discontinued hedge accounting and reclassified losses of $0.9 million after-tax from OCI into operating revenues when Energen Resources determined it was probable certain forecasted transactions volumes would not occur. The Company had $106 million and $15.6 million included in current and noncurrent deferred income taxes on the consolidated balance sheets related to items included in OCI as of September 30, 2005 and December 31, 2004, respectively. At September 30, 2005, and December 31, 2004, the Company had $270 million and $40.7 million, respectively, recorded in accounts payable and $40.3 million and $3.2 million, respectively, recorded in other noncurrent liabilities related to derivative liabilities.
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|Energen Resources has entered into the following transactions for the remainder of 2005 and subsequent years:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Production Period                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Natural Gas                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|2007                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Natural Gas Basis Differential                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Oil                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Oil Basis Differential                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Natural Gas Liquids                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|* Average contract prices are not meaningful due to the varying nature of each contract.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         



|All hedge transactions are subject to the Company's risk management policy, approved by the Board of Directors, which does not permit speculative positions. The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking the hedge. This process includes specific identification of the hedging instrument and the hedge transaction, the nature of the risk being hedged and how the hedging instrument's effectiveness in hedging the exposure to the hedged transaction's variability in cash flows attributable to the hedged risk will be assessed. Both at the inception of the hedge and on an ongoing basis, the Company assesses whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. The Company discontinues hedge accounting if a derivative has ceased to be a highly effective hedge. The maximum term over which Energen Resources has hedged exposures to the variability of cash flows is through December 31, 2007.
On December 4, 2000, the APSC authorized Alagasco to engage in energy risk-management activities to manage the utility's cost of gas supply. As required by SFAS No. 133, Alagasco recognizes all derivatives as either assets or liabilities on the balance sheet with a corresponding regulatory asset or liability. Any gains or losses are passed through to customers using the mechanisms of the GSA in compliance with Alagasco's APSC-approved tariff. In accordance with SFAS No. 71, "Accounting for the Effects of Certain Types of Regulation," Alagasco recorded a $41.8 million and $8.1 million gain as a regulatory liability as of September 30, 2005 and December 31, 2004, respectively, with a corresponding asset in prepayments and other representing the fair value of derivatives.
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5. RECONCILIATION OF EARNINGS PER SHARE
|---------------------------------------



|                                         | Three months ended | Three months ended
|---------------------------------------- | ------------------ | ------------------
|(in thousands, except per share amounts) | September 30, 2005 | September 30, 2004
|                                         |                    |                   
|                                         | Income             | Shares            
|                                         |                    |                   
|Basic EPS*                               | $   19,086         | 73,024            
|Effect of Dilutive Securities            |                    |                   
|Long-range performance shares            |                    | 378               
|Stock options                            |                    | 345               
|Restricted stock                         |                    | 131               
|                                         |                    |                   
|Diluted EPS*                             | $   19,086         | 73,878            



|                                         | Nine months ended  | Nine months ended 
|---------------------------------------- | ------------------ | ------------------
|(in thousands, except per share amounts) | September 30, 2005 | September 30, 2004
|                                         |                    |                   
|                                         | Income             | Shares            
|                                         |                    |                   
|Basic EPS*                               | $ 115,709          | 72,998            
|Effect of Dilutive Securities            |                    |                   
|Long-range performance shares            |                    | 320               
|Stock options                            |                    | 304               
|Restricted stock                         |                    | 103               
|                                         |                    |                   
|Diluted EPS*                             | $ 115,709          | 73,725            



|*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)                                                                                   
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|For the three months and nine months ended September 30, 2005 and 2004, the Company had no options or shares of non-vested restricted stock that were excluded from the computation of diluted EPS.



|6. SEGMENT INFORMATION
The Company principally is engaged in two business segments: the purchase, distribution and sale of natural gas in central and north Alabama (natural gas distribution) and the acquisition, development, exploration and production of oil and gas in the continental United States (oil and gas operations).
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                     
|(in thousands)                                                                                                                                                                                                                                                                                                                       
|Operating revenues from continuing operations                                                                                                                                                                                                                                                                                        
|Oil and gas operations                                                                                                                                                                                                                                                                                                               
|Natural gas distribution                                                                                                                                                                                                                                                                                                             
|Eliminations and other                                                                                                                                                                                                                                                                                                               
|Total                                                                                                                                                                                                                                                                                                                                
|Operating income (loss) from continuing operations                                                                                                                                                                                                                                                                                   
|Oil and gas operations                                                                                                                                                                                                                                                                                                               
|Natural gas distribution                                                                                                                                                                                                                                                                                                             
|Eliminations and corporate expenses                                                                                                                                                                                                                                                                                                  
|Total                                                                                                                                                                                                                                                                                                                                
|Other income (expense)                                                                                                                                                                                                                                                                                                               
|Oil and gas operations                                                                                                                                                                                                                                                                                                               
|Natural gas distribution                                                                                                                                                                                                                                                                                                             
|Eliminations and other                                                                                                                                                                                                                                                                                                               
|Total                                                                                                                                                                                                                                                                                                                                
|Income from continuing operations before income taxes                                                                                                                                                                                                                                                                                



|(in thousands)           | September 30, 2005 | December 31, 2004
|------------------------ | ------------------ | -----------------
|Identifiable assets      |                    |                  
|Oil and gas operations   | $   1,470,756      | $   1,315,967    
|Natural gas distribution | 856,728            | 837,557          
|Subtotal                 | 2,327,484          | 2,153,524        
|Eliminations and other   | 64,713             | 28,215           
|Total                    | $ 2,392,197        | $  2,181,739     
|                        



|7. COMPREHENSIVE INCOME (LOSS)
Comprehensive income (loss) consisted of the following:                          
|----------------------------------------------------------------------------------------------------------------
|                                                                                                                
|(in thousands)                                                                                                  
|                                                                                                                
|Net Income                                                                                                      
|Other comprehensive income (loss)                                                                               
|Current period change in fair value of derivative instruments, net of tax of ($82.9) million and ($23.6) million
|Reclassification adjustment for losses realized in net income, net of tax of $17 million and $8.2 million       
|Minimum pension liability, net of tax of ($1.4) million and ($0.7) million                                      
|                                                                                                                
|Comprehensive Loss                                                                                              



|                                                                                                                  | Nine months ended  | Nine months ended 
|----------------------------------------------------------------------------------------------------------------- | ------------------ | ------------------
|(in thousands)                                                                                                    | September 30, 2005 | September 30, 2004
|                                                                                                                  |                    |                   
|Net Income                                                                                                        | $  115,709         | $    96,195       
|Other comprehensive income (loss)                                                                                 |                    |                   
|Current period change in fair value of derivative instruments, net of tax of ($122.5) million and ($46.4) million | (199,829)          | (76,623)          
|Reclassification adjustment for losses realized in net income, net of tax of $32.1 million and $19.8 million      | 52,416             | 32,227            
|Minimum pension liability, net of tax of ($1.4) million and ($0.7) million                                        | (2,582)            | (1,356)           
|                                                                                                                  |                    |                   
|Comprehensive Income (Loss)                                                                                       | $   (34,286)       | $     50,443      



|Accumulated other comprehensive loss consisted of the following:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(in thousands)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Unrealized loss on hedges, net of tax of ($106) million and ($15.6) million                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Minimum pension liability, net of tax of ($7.8) million and ($6.4) million                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Accumulated Other Comprehensive Loss                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|8. LONG-LIVED ASSETS AND DISCONTINUED OPERATIONS
The Company applies SFAS No. 144, which retains the previous asset impairment requirements of SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of," for loss recognition when the carrying value of an asset exceeds the sum of the undiscounted estimated future cash flows of the asset. In addition, SFAS No. 144 requires that gains and losses on the sale of certain oil and gas properties and write-downs of certain properties held-for-sale be reported as discontinued operations, with income or loss from operations of the associated properties reported as income or loss from discontinued operations. The results of operations for held-for-sale properties are reclassified and reported as discontinued operations for prior periods in accordance with SFAS No. 144. Energen Resources may, in the ordinary course of business, be involved in the sale of developed or undeveloped properties. All assets held-for-sale must be reported at the lower of the carrying amount or fair value. In the nine months ended September 30, 2005, Energen Resources recorded a pre-tax gain of $194,000 primarily from a property sale located in the Permian Basin. Energen Resources had no property sales during the three months ended September 30, 2005 and 2004 or the year-to-date ended September 30, 2004.
The following are the results of operations from discontinued operations:
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|(in thousands, except per share data)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Oil and gas revenues                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Pretax income (loss) from discontinued operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Income tax expense (benefit)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Income (Loss) From Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Gain (loss) on disposal of discontinued operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Income tax expense (benefit)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Gain (Loss) on Disposal of Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Total Income From Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Diluted Earnings Per Average Common Share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Income from Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Loss on Disposal of Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Total Income from Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Basic Earnings Per Average Common Share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Income from Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Loss on Disposal of Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Total Income from Discontinued Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              



|*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)9. EMPLOYEE BENEFIT PLANS
|-----------------------------------------------------------------------------------------------------------------------------------------

The components of net pension expense for the Company's two defined benefit non-contributory pension plans were:

|(in thousands)                           | Plan A                           | Plan B                          
|---------------------------------------- | -------------------------------- | --------------------------------
|                                         | Three Months Ended
September 30, | Three Months Ended
September 30,
|                                         | 2005                             | 2004                            
|Components of net periodic benefit cost: |                                  |                                 
|Service cost                             | $ 1,544                          | $ 1,356                         
|Interest cost                            | 1,886                            | 1,664                           
|Expected long-term return on assets      | (2,199)                          | (1,950)                         
|Actuarial loss                           | 687                              | 433                             
|Prior service cost amortization          | 59                               | 58                              
|Net periodic expense                     | $ 1,977                          | $ 1,561                         



|(in thousands)                                                                                                                                                                                                   | Plan A                          | Plan B                         
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------- | -------------------------------
|                                                                                                                                                                                                                 | Nine months Ended
September 30, | Nine months Ended
September 30,
|                                                                                                                                                                                                                 | 2005                            | 2004                           
|Components of net periodic benefit cost:                                                                                                                                                                         |                                 |                                
|Service cost                                                                                                                                                                                                     | $ 4,633                         | $ 4,068                        
|Interest cost                                                                                                                                                                                                    | 5,659                           | 4,992                          
|Expected long-term return on assets                                                                                                                                                                              | (6,597)                         | (5,850)                        
|Actuarial loss                                                                                                                                                                                                   | 2,061                           | 1,299                          
|Prior service cost amortization                                                                                                                                                                                  | 176                             | 174                            
|Net periodic expense                                                                                                                                                                                             | $ 5,932                         | $ 4,683                        
|The Company is not required to make pension contributions in 2005. The Company will reevaluate discretionary contributions in the fourth quarter of 2005 based on the annual measurement of pension obligations.

The components of net periodic post-retirement benefit expense for the Company's post-retirement benefit plans

were:

|(in thousands)                           | Salaried Employees               | Union Employees                 
|---------------------------------------- | -------------------------------- | --------------------------------
|                                         | Three Months Ended
September 30, | Three Months Ended
September 30,
|                                         | 2005                             | 2004                            
|Components of net periodic benefit cost: |                                  |                                 
|Service cost                             | $ 231                            | $ 349                           
|Interest cost                            | 492                              | 572                             
|Expected long-term return on assets      | (425)                            | (433)                           
|Actuarial gain                           | (32)                             | -                               
|Prior service cost amortization          | -                                | -                               
|Transition amortization                  | 171                              | 171                             
|Net periodic expense                     | $ 437                            | $ 659                           



|(in thousands)                           | Salaried Employees              | Union Employees                
|---------------------------------------- | ------------------------------- | -------------------------------
|                                         | Nine months Ended
September 30, | Nine months Ended
September 30,
|                                         | 2005                            | 2004                           
|Components of net periodic benefit cost: |                                 |                                
|Service cost                             | $ 694                           | $ 990                          
|Interest cost                            | 1,477                           | 1,732                          
|Expected long-term return on assets      | (1,277)                         | (1,194)                        
|Actuarial gain                           | (96)                            | -                              
|Prior service cost amortization          | -                               | -                              
|Transition amortization                  | 512                             | 512                            
|Net periodic expense                     | $ 1,310                         | $ 2,040                        



|For the three months and nine months ended September 30, 2005, the Company made contributions aggregating $0.8 million and $2.4 million, respectively, to the post-retirement plans. The Company expects to make additional discretionary contributions of approximately $0.8 million through the remainder of 2005.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|10. COMMITMENTS AND CONTINGENCIES
Commitments and Agreements: Certain of Alagasco's long-term gas procurement contracts for the supply, storage and delivery of natural gas include fixed charges of approximately $228 million through October 2013. Alagasco also is committed to purchase minimum quantities of gas at market-related prices or to pay certain costs in the event the minimum quantities are not taken. These purchase commitments are 173.1 Bcf through April 2015.
Alagasco purchases gas as an agent for certain of its large commercial and industrial customers. Alagasco has in certain instances provided commodity-related guarantees to the counterparties in order to facilitate these agency purchases. Liabilities existing for gas delivered to customers subject to these guarantees are included in the consolidated balance sheet. In the event the customer for whom the guarantee was entered fails to take delivery of the gas, Alagasco can sell such gas for the customer, with the customer liable for any resulting loss. Although the substantial majority of purchases under these guarantees are for the customers' current monthly consumption and are at current market prices, in some instances, the purchases are for an extended term at a fixed price. At September 30, 2005, the fixed price purchases under these guarantees had a maximum term outstanding through March 2006 and an aggregate purchase price of $2.9 million with a market value of $6.1 million.
Legal Matters: Energen and its affiliates are, from time to time, parties to various pending or threatened legal proceedings. Certain of these lawsuits include claims for punitive damages in addition to other specified relief. Based upon information presently available, and in light of available legal and other defenses, contingent liabilities arising from threatened and pending litigation are not considered material in relation to the respective financial positions of Energen and its affiliates. It should be noted, however, that Energen and its affiliates conduct business in Alabama and other jurisdictions in which the magnitude and frequency of punitive damage awards may bear little or no relation to culpability or actual damages, thus making it increasingly difficult to predict litigation results.
In January 2005, a lawsuit was tried in Cochran County, Texas in which the plaintiff alleged preferential purchase right claims against Energen Resources with respect to certain properties acquired by Energen Resources in 2002. The jury rendered a verdict in Energen Resources' favor on all counts. Subsequently, in March 2005, the Judge issued a decision overruling the jury verdict. Energen Resources is pursuing an appeal of the Judge's order and expects to prevail. Under the Judge's order, Energen Resources potential pre-tax charge to income would be approximately $2.3 million as of September 30, 2005, none of which has been accrued. This amount includes the net cash flows attributable to the property since its acquisition.
Alagasco is a defendant in a lawsuit filed in Jefferson County, Alabama alleging breach of contract and fraud for compensatory and punitive damages in connection with compressed natural gas vehicle services provided to Alagasco by the plaintiff. Alagasco expects to prevail in its defense of the case. As noted above, however, it is difficult to predict litigation results. In the event that the plaintiff prevails, Alagasco estimates a damage award range of $300,000 to $2,000,000, none of which has been accrued.

Various other pending or threatened legal proceedings arising in the normal course of business are in progress currently, and the Company has accrued a provision for estimated costs.

Environmental Matters: Various environmental laws and regulations apply to the operations of Energen Resources and Alagasco. Historically, the cost of environmental compliance has not materially affected the Company's financial position, results of operations or cash flows and is not expected to do so in the future; however, new regulations, enforcement policies, claims for damages or other events could result in significant unanticipated costs.
Environmental compliance costs, including ongoing maintenance, monitoring and similar costs, are expensed as incurred. Environmental remediation costs are accrued when remedial efforts are probable and the cost can be reasonably estimated.
During 2004, the State of New Mexico issued new regulations related to below-grade storage pits. Such pits are used to temporarily hold produced fluids until they can be disposed of permanently. Under the new regulations, the storage pits must be constructed with secondary containment and leak detection, and all such pits will require an annual certification attesting that the storage pits do not leak. As a result of this regulation, the Company expensed $0.9 million as a lease operating expense during the nine months ended September 30, 2005. During 2004, the Company capitalized $0.5 million as part of its acquisition of properties in the San Juan Basin and expensed $1.6 million as a lease operating expense under this regulation. The Company does not anticipate any further remediation charges on existing properties related to the new regulations.
Alagasco is in the chain of title of nine former manufactured gas plant sites (four of which it still owns) and five manufactured gas distribution sites (one of which it still owns). An investigation of the sites does not indicate the need for remediation activities. Management expects that, should remediation of any such sites be required in the future, Alagasco's share, if any, of such costs will not materially affect the financial position, results of operations or cash flows of Alagasco.
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|11. REGULATORY ASSETS AND LIABILITIES
The following table details regulatory assets and liabilities on the balance sheets:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|(in thousands)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Regulatory assets:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Pension asset                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Other                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Total regulatory assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Regulatory liabilities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Enhanced stability reserve                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Gas supply adjustment                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Risk management activities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|RSE adjustment                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Unbilled service margin                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Asset removal costs, net                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Other                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Total regulatory liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|12. EQUITY AND DEBT OFFERINGS
In November 2004, Energen issued $100 million of Floating Rate Senior Notes (Senior Notes) due November 15, 2007. The interest rate is the three-month LIBOR Rate plus .35%, reset quarterly. At September 30, 2005, the interest rate was 4.14 percent on the Senior Notes. In January 2005, Alagasco issued $40 million of long-term debt with an interest rate of 5.2 percent due January 15, 2020 and $40 million of long-term debt with an interest rate of 5.7 percent due January 15, 2035. The Senior Note proceeds were used for general corporate purposes and to repay a portion of short-term debt incurred to finance the oil and gas property acquisition program of Energen Resources. Alagasco used long-term debt proceeds to repay amounts drawn on short-term credit facilities for capital expenditures and to refinance $30 million of Medium-Term Notes called by Alagasco in April 2004. In August 2005, Alagasco called a total of $18 million of Medium-Term Notes maturing June 27, 2007 to July 5, 2022.
As of September 30, 2005, Energen and Alagasco had short-term credit lines available for working capital needs up to $260 million. Alagasco has been authorized by the APSC to borrow up to a total of $100 million of these available short-term credit lines.
13. RECENT ACCOUNTING PRONOUNCEMENTS
In December 2004, the Financial Accounting Standards Board (FASB) issued SFAS No. 123 (revised 2004), "Share-Based Payment (SFAS No. 123R)," which requires a fair value base method of accounting using pricing models that reflect the specific economics of a company's transactions. This statement is effective for the first annual reporting period beginning after June 15, 2005. The Company prospectively adopted the fair value recognition provisions of SFAS No. 123 (as amended), which provided methods of transition for a voluntary change to the fair value base method of accounting for stock-based employee compensation effective January 1, 2003. The Company will adopt SFAS No. 123R using the modified prospective application method for new awards effective January 1, 2006. The Company is currently evaluating its stock-based compensation and the application of SFAS No. 123R.
In December 2004, the FASB issued FSP No. 109-1, "Application of SFAS No. 109, Accounting for Income Taxes, to the provision within the American Jobs Creation Act of 2004 (the Act) that provides a tax deduction on qualified production activities." This Act includes a tax deduction of up to 9 percent (when fully phased-in) of the lesser of (a) qualified production activities income as defined in the Act, or (b) taxable income of the Company determined without regard to this deduction. This tax deduction would apply to qualified production activities of Energen Resources and would be limited to 50 percent of W-2 wages paid by the Company. Pursuant to FSP No. 109-1, the deduction will be reported in the period in which the deduction is claimed on the Company's tax return and will not have an effect on deferred tax assets or deferred tax liabilities. The Company estimates the impact of this tax legislation will reduce income tax expense by approximately $0.9 million during 2005.
In March 2005, the FASB issued FIN No. 47, "Accounting for Conditional Asset Retirement Obligations", which refers to a legal obligation to perform an asset retirement activity in which the timing and (or) method of settlement are conditional on a future event that may or may not be within the control of the entity. This interpretation is effective no later than the end of fiscal years ending after December 15, 2005. The impact of this interpretation on the Company is currently being evaluated.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|14. ACQUISITION OF OIL AND GAS PROPERTIES
On August 2, 2004, Energen Resources completed a purchase of San Juan Basin coalbed methane properties from a private company for approximately $273 million. The effective date of the acquisition was August 1, 2004. Energen Resources acquired an estimated 245 Bcfe of proved natural gas and natural gas liquids reserves. Approximately 51 percent of the proved reserves were estimated to be behind pipe and undeveloped. The Company estimates approximately 80 percent of the acquisition reserves are gas with natural gas liquids comprising the balance. Energen used its short-term credit facilities and internally generated cash flows to finance the acquisition. A portion of the short-term debt incurred to finance the acquisition was repaid when Energen issued $100 million of Floating Rate Senior Notes in November 2004.
Summarized below are the consolidated results of operations for the three months and nine months ended September 30, 2004, on an unaudited pro forma basis as if the purchase of assets had occurred at the beginning of the period presented. The pro forma information is based on the Company's consolidated results of operations for the three months and nine months ended September 30, 2004, and on the data provided by the seller. The pro forma financial information does not purport to be indicative of results of operations that would have occurred had the transaction occurred on the basis assumed above, nor are they indicative of results of the future operations of the combined enterprises.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        



|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Three months ended | Nine months ended 
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|(in thousands, except per share data)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | September 30, 2004 | September 30, 2004
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                    |                   
|Operating revenues                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | $ 168,107          | $ 717,992         
|Income from continuing operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | $ 13,792           | $ 96,857          
|Net income                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | $ 13,855           | $ 96,999          
|Diluted earnings per average common share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | $ 0.19             | $ 1.32            
|Basic earnings per average common share*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | $ 0.19             | $ 1.34            
|*Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|15. STOCK DIVIDEND
On April 27, 2005, Energen's shareholders approved a 2-for-1 split of the Company's common stock. The split was effected in the form of a 100 percent stock dividend and was payable on June 1, 2005, to shareholders of record on May 13, 2005. All share and per share amounts of capital stock outstanding have been adjusted to reflect the stock split. Effective April 29, 2005, the Restated Certificate of Incorporation of Energen Corporation was amended to increase the Company's authorized common stock, par value $0.01 per share, from 75,000,000 shares to 150,000,000 shares.







|ITEM 2.MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Energen's net income totaled $19.1 million ($0.26 per diluted share) for the three months ended September 30, 2005 and compared favorably with net income of $13.7 million ($0.19 per diluted share) for the same period in the prior year. Energen Resources Corporation, Energen's oil and gas subsidiary, had net income for the three months ended September 30, 2005, of $28.1 million compared with $21.7 million in the same quarter in the previous year. Energen Resources reported net income from continuing operations of $28.1 million in the current quarter as compared with $21.6 million in the same quarter last year. Significantly higher commodity prices (approximately $10 million after-tax) and increased production volumes (approximately $3 million after-tax) were partially offset by increased lease operating expenses (approximately $3 million after-tax), higher production taxes (approximately $2 million after-tax) and increased depreciation, depletion and amortization (DD&A) expense (approximately $2 million after-tax). Energen's natural gas utility, Alagasco, reported a net loss of $8.8 million in the third quarter of 2005 compared to a net loss of $7.7 million in the same period last year. Alagasco recognized a reduction in revenues in the current quarter to bring the return on average equity to midpoint within the utility's allowed range of return at the end of the fiscal year for rate-setting purposes (approximately $2 million after-tax). The utility historically records a net loss in the third quarter when the heating load is at its lowest level of the year.
For the 2005 year-to-date, Energen's net income totaled $115.7 million ($1.57 per diluted share) and compared favorably to net income of $96.2 million ($1.31 per diluted share) for the same period in the prior year. Energen Resources had net income for the nine months ended September 30, 2005, of $84 million as compared with $66.7 million in the previous period. Energen Resources generated income from continuing operations of $83.9 million in the current year-to-date as compared with $66.6 million in the same period last year primarily as a result of higher commodity prices (approximately $31 million after-tax) and increased production volumes (approximately $11 million after-tax) partially offset by the impact of increased lease operating expenses (approximately $11 million after-tax), higher production taxes (approximately $6 million after-tax), increased DD&A expense (approximately $5 million after-tax) and increased administrative expenses (approximately $4 million after-tax). Alagasco's net income of $31.3 million in the current year-to-date increased from net income of $29.1 million in the same period in the previous year primarily reflecting the utility's ability to earn on a higher level of equity.
Oil and Gas Operations
Revenues from oil and gas operations rose 21.2 percent to $126.3 million for the three months ended September 30, 2005, and 23 percent to $363.6 million in the year-to-date largely as a result of increased commodity prices as well as the impact of higher gas production volumes. During the current quarter, average gas prices rose 11.5 percent to $5.31 per thousand cubic feet (Mcf), while average oil prices increased 23.5 percent to $35.51 per barrel. Natural gas liquids prices increased 18 percent to an average price of $0.59 per gallon. In the year-to-date, average gas prices increased 13.1 percent to $5.39 Mcf, average oil prices rose 22.9 percent to $33.75 per barrel and natural gas liquids prices increased 22.7 percent to $0.54 per gallon. The average sales prices included an $8.6 million after-tax loss in the current quarter and an $11.4 million after-tax loss year-to-date from the effects of open gas derivative contracts marked-to-market. These gas contracts did not meet the definition of cash flow hedges, as more fully described below. The Company also included in the average gas and oil sales prices a $0.9 million after-tax loss for the current quarter and a $1.5 million after-tax loss year-to-date on open contracts for the ineffective portion of the change in fair value of derivatives accounted for as cash flow hedges.
Production increased primarily due to volumes related to the prior year purchase of San Juan Basin coalbed methane properties and increased drilling of wells in North Louisiana. Energen Resources acquired an estimated 245 Bcfe of proved natural gas and natural gas liquids reserves in the San Juan Basin effective August 1, 2004. Negatively affecting production was a normal production decline that was in excess of new production coming on-line in the Permian Basin. Natural gas production from continuing operations in the third quarter rose 9.4 percent to 16 billion cubic feet (Bcf), while oil volumes fell 4.8 percent to 813 thousand barrels (MBbl) and natural gas liquids production declined slightly to 18.1 million gallons (MMgal). For the year-to-date, natural gas production increased 9.1 percent to 45.9 Bcf and oil production decreased 3 percent to 2.5 MBbl. Natural gas liquids production rose 4.4 percent to 52.5 MMgal. Natural gas comprised approximately 65 percent of Energen Resources' production for the current quarter and the year-to-date.
Energen Resources periodically enters into derivative commodity instruments that qualify as cash flow hedges under Statement of Financial Accounting Standard (SFAS) No. 133, "Accounting for Derivative Instruments and Hedging Activities," to hedge its exposure to price fluctuations on oil, natural gas and natural gas liquids production. Such instruments may include regulated natural gas and crude oil futures contracts traded on the New York Mercantile Exchange (NYMEX) and over-the-counter swaps, collars and basis hedges with major energy derivative product specialists. These hedge transactions are pursuant to standing authorizations by the Board of Directors, which do not permit speculative positions.
Energen Resources applies SFAS No. 133 which requires all derivatives to be recognized on the balance sheet and measured at fair value. If a derivative is designated as a cash flow hedge, the effectiveness of the hedge, or the degree that the gain (loss) for the hedging instrument offsets the loss (gain) on the hedged item is measured at each reporting period. The effective portion of the gain or loss on the derivative instrument is recognized in other comprehensive income (OCI) as a component of equity and subsequently reclassified into earnings as operating revenues when the forecasted transaction affects earnings. The ineffective portion of a derivative's change in fair value is required to be recognized in earnings immediately. Derivatives that do not qualify for hedge treatment under SFAS No. 133 must be recorded at fair value with gains or losses recognized in operating revenues in the period of change. Energen Resources recorded an after-tax loss of $11.1 million for the three months ended September 30, 2005, and a $16.7 million after-tax loss year-to-date on open and closed contracts that did not meet the definition of cash flow hedges under SFAS No. 133. For the three months ended September 30, 2005, the Company recorded a $1 million after-tax loss and a $3 million after-tax loss year-to-date on open and closed contracts for the ineffective portion of the change in fair value of derivatives accounted for as cash flow hedges.



|Energen Resources has entered into the following transactions for the remainder of 2005 and subsequent years:
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|Production Period                                                                                            
|Natural Gas                                                                                                  
|2005                                                                                                         
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|2006                                                                                                         
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|2007                                                                                                         
|Natural Gas Basis Differential                                                                               
|2005                                                                                                         
|Oil                                                                                                          
|2005                                                                                                         
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|2006                                                                                                         
|Oil Basis Differential                                                                                       
|2005                                                                                                         
|2006                                                                                                         
|Natural Gas Liquids                                                                                          
|2005                                                                                                         
|2006                                                                                                         
|* Average contract prices are not meaningful due to the varying nature of each contract.                     



|Realized prices are anticipated to be lower than NYMEX prices due to basis differences and other factors.
Operations and maintenance (O&M) expense increased $5.7 million for the quarter and $22.2 million in the year-to-date. Lease operating expenses (excluding production taxes) increased by $5.3 million for the quarter and $17.2 million year-to-date primarily due to increased workover and maintenance expenses, increased ad valorem taxes and overall price increases related to higher commodity prices. Partially offsetting these increases were lower compliance costs related to prior year regulations for below-grade storage pits. Administrative expense rose $2.1 million for the three months ended September 30, 2005 and $6.3 million in the year-to-date, primarily due to labor related costs. Exploration expense was lower by $1.7 million in the third quarter and by $1.3 million in year-to-date comparisons.
Energen Resources' DD&A expense for the quarter increased $2.7 million and rose $8.1 million year-to-date. The average depletion rate for the current quarter was $0.98 per mcfe as compared to $0.91 per mcfe in the same period a year ago. For the nine months ended September 30, 2005, the average depletion rate was $0.96 per mcfe as compared to $0.89 per mcfe in the previous period. The increases in depletion rates were largely due to a higher depreciation rate on coalbed methane properties purchased in the prior year and to the current year production mix that reflects a higher percentage of the Company's shorter-lived North Louisiana/East Texas production.
Energen Resources' expense for taxes other than income taxes primarily reflected production-related taxes that were $3.9 million higher this quarter and $9.3 million higher year-to-date largely due to increased commodity market prices and increased production related to the prior year San Juan Basin acquisition.
Energen Resources may, in the ordinary course of business, be involved in the sale of developed or undeveloped properties. With respect to developed properties, sales may occur as a result of, but not limited to, disposing of non-strategic or marginal assets and accepting offers where the buyer gives greater value to a property than does Energen Resources. The Company is required to reflect gains and losses on the dispositions of these assets, the write-down of certain properties held-for-sale, and income or loss from the operations of the associated held-for-sale properties as discontinued operations under the provisions of SFAS No. 144, "Accounting for Impairment or Disposal of Long-Lived Assets." In the current year-to-date, Energen Resources recorded a pre-tax gain of $194,000 primarily from a property sale located in the Permian Basin. Energen Resources had no property sales during the three months ended September 30, 2005 and 2004 or the year-to-date ended September 30, 2004.
Natural Gas Distribution
Natural gas distribution revenues increased $2.3 million for the quarter largely due to an increase in sales to commercial and industrial customers. Alagasco recognized a $3.3 million reduction in revenues in the current quarter under regulatory rate setting requirements to bring the return on average equity to midpoint in the allowed range of return. For the quarter, weather was comparable with the same period last year. Residential sales volumes declined 3.4 percent. Commercial and industrial customer sales volumes increased 14.1 percent primarily due to additional usage from co-generation plants along with increased volumes generated from new load. Transportation volumes decreased 6.6 percent in period comparisons. Revenues for the year-to-date rose $19.6 million primarily due to an increase in commodity gas costs partially offset by a decrease in weather related usage and the regulatory reduction to revenues as discussed for the quarter. Weather that was 7.8 percent warmer than in the previous period contributed to an 8.4 percent decline in residential sales volumes and a 3.5 percent decrease in commercial and industrial customer sales volumes. Large transportation volumes declined 7.2 percent. Increased gas purchase volumes resulted in a 3.2 percent increase in cost of gas for the quarter. For the year-to-date, an increase in cost of gas of 4.5 percent was largely due to higher gas costs compared to the prior period partially offset by a decline in gas purchase volumes. Utility gas costs include commodity cost, risk management gains and losses and the provisions of the GSA rider. The GSA rider in Alagasco's rate schedule provides for a pass-through of gas price fluctuations to customers without markup. Alagasco's tariff provides a temperature adjustment to certain customers' bills designed to substantially remove the effect of departures from normal temperatures. The temperature adjustment applies primarily to residential, small commercial and small industrial customers.
As discussed more fully in Note 3 to the Unaudited Condensed Financial Statements, Alagasco is subject to regulation by the Alabama Public Service Commission (APSC). On June 10, 2002, the APSC issued an order to extend Alagasco's rate-setting mechanism. Under the terms of that extension, RSE will continue after January 1, 2008, unless, after notice to Alagasco and a hearing, the Commission votes to either modify or discontinue its operation.
O&M expense increased 4.5 percent in the current quarter and 2.9 percent in the nine months ended September 30, 2005, primarily due to increased bad debt expense and distribution maintenance expenses partially offset by reduced insurance costs. A 6.8 percent increase in depreciation expense in the current quarter and a 7.7 percent increase in the year-to-date was due to normal replacement of the utility's distribution and support systems. Taxes other than income taxes primarily reflected various state and local business taxes as well as payroll-related taxes. State and local business taxes generally are based on gross receipts and fluctuate accordingly.
Non-Operating Items
Interest expense for the Company increased $1.1 million in the third quarter and $3.3 million year-to-date primarily due to the issuance of $100 million of Floating Rate Senior Notes by Energen in November 2004 as well as Alagasco's issuance of $80 million of long-term debt in January 2005. Positively impacting interest expense was Alagasco's election to call $18 million of Medium-Term Notes in August 2005. In the year-to-date comparison, interest expense was also affected by $30 million of Medium-Term Notes that were called in April 2004 by Alagasco. In the current quarter, income tax expense for the Company increased $2.6 million and was $10.7 million higher in year-to-date comparisons largely due to higher consolidated pre-tax income. Alagasco's income tax benefit increased $0.5 million in the current quarter primarily due to a higher pre-tax loss. For the year-to-date comparison, income tax expense rose $2.2 million primarily due to higher pre-tax income.
Exposure to Natural Disaster
The Company's production properties and distribution system did not suffer significant damage from Hurricanes Katrina and Rita which occurred in the third quarter of 2005. Energen Resources experienced minimal loss of production and Alagasco had no significant supply disruptions as a result of these hurricanes. These events, however, highlight the potential for a period of production shut-in for Energen Resources resulting from a prolonged interruption of service in areas which have a concentration of fractionation plants and refineries through which a substantial portion of the Company's oil and natural gas liquids production flow. Alagasco's customer base is geographically concentrated in central Alabama. Damage to Alagasco's delivery infrastructure, Energen Resources' production infrastructure or to third party facilities which serve Alagasco and/or Energen Resources due to a natural disaster or other event could result in significant adverse financial consequences to Alagasco and/or the Company.
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|FINANCIAL POSITION AND LIQUIDITY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|Cash flows from operations for the year-to-date were $312.7 million as compared to $253.2 million. Operating cash flow benefited from higher realized commodity prices and production volumes at Energen Resources. The Company's working capital needs were also highly influenced by throughput, changes in weather, and timing of payments. Working capital needs at Alagasco were primarily affected by increased gas costs compared to the prior period and storage gas inventory.
The Company had a net outflow of cash from investing activities of $173.9 million for the nine months ended September 30, 2005 primarily due to additions of property, plant and equipment. Energen Resources invested $132.7 million in capital expenditures primarily related to the development of oil and gas properties. Utility capital expenditures totaled $52.9 million in the year-to-date and primarily represented system distribution expansion and support facilities.
The Company used $105.1 million for financing activities in the year-to-date primarily due to the repayment of short-term borrowings, repayments of long-term debt, including Alagasco's election to call $18 million of Medium-Term Notes in July 2005, and dividends paid to common stockholders. Also influencing financing activities were the proceeds from the issuance of $80 million of long-term debt by Alagasco in January 2005.



|FUTURE CAPITAL RESOURCES AND LIQUIDITY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company plans to continue to implement its diversified growth strategy that focuses on expanding Energen Resources' oil and gas operations through the acquisition of producing properties with developmental potential while maintaining the strength of the Company's utility foundation. For the five years ended December 31, 2004, Energen's diluted EPS grew at an average compound rate of 17.5 percent a year. Over the long-term, Energen is targeting an average diluted EPS growth rate over each rolling five-year period of approximately 8 percent a year.
On April 27, 2005, Energen's shareholders approved a 2-for-1 split of the Company's common stock. The split was effected in the form of a 100 percent stock dividend and was payable on June 1, 2005, to shareholders of record on May 13, 2005. All share and per share amounts of capital stock outstanding have been adjusted to reflect the stock split.
Over the five-year planning period ending December 31, 2009, Energen Resources plans to spend approximately $324 million for development on existing properties and $30 million for exploratory and other activities. Notwithstanding the estimated expenditures mentioned above, as an acquisition oriented company, Energen Resources continually evaluates acquisition opportunities which arise in the marketplace and from time to time will pursue acquisitions that meet Energen's acquisition criteria which could result in capital expenditures different than those outlined above. The Company is prepared to invest approximately $1 billion over the next five years for property acquisitions that meet Energen's acquisition criteria. To finance Energen Resources' investment program, the Company expects primarily to utilize short-term credit facilities to supplement internally generated cash flow. The Company may also periodically issue long-term debt and equity to replace short-term obligations, enhance liquidity and provide for permanent financing. Energen currently has available short-term credit facilities aggregating $260 million to help finance its growth plans and operating needs. Energen Resources' continued ability to invest in property acquisitions is subject to market conditions and industry trends.
In 2005, Energen Resources plans to invest approximately $168 million in capital expenditures primarily for development and exploratory activities. As of December 31, 2004, the estimated amount of 2005 development of previously identified proved undeveloped reserves was approximately $84 million. Approximately $5 million is estimated for 2005 exploratory exposure. Capital investment at Energen Resources in 2006 is expected to approximate $121 million for development and exploration. Of this $121 million, development of previously identified proved undeveloped reserves is estimated to be $30 million and exploratory exposure is estimated to be $6 million.
Energen Resources currently expects production to approximate 92 Bcfe and 89 Bcfe for 2005 and 2006, respectively. The Company's most recent estimate of production attributable to already owned proved reserves was prepared as of December 31, 2004. Production from proved reserves owned as of December 31, 2004, was estimated as 91 Bcfe and 88 Bcfe for 2005 and 2006, respectively.
Energen Resources' lease operating expenses have significantly increased reflecting higher workover and maintenance expenses, increased taxes and other field-service-related expenses generally caused by an increased price environment. In addition, wider than anticipated basis differentials have resulted from regional supply-and-demand. The Company anticipates these price increase trends will continue in the near term.
An increase in national wholesale natural gas prices will increase natural gas costs for Alagasco customers for the 2005-2006 heating season as compared to the 2004-2005 heating season. Alagasco's rate schedules for natural gas distribution charges contain a Gas Supply Adjustment rider which permits the pass-through to customers for changes in the cost of gas supply. On October 1, 2005, Alagasco increased its rates 36.7 percent to begin recovering these increased gas costs although such increases will not have a significant impact on most customers until the winter heating season. Sustained high prices may decrease Alagasco's customer base and could result in a decline in per customer use and number of customers. The utility will continue to monitor its bad debt reserve and will make adjustments as required based on its evaluation of its receivables which are impacted by natural gas prices.
Alagasco maintains an investment in storage gas that is expected to average approximately $55 million in 2005 but will vary depending upon the price of natural gas. During 2005 and 2006, Alagasco plans to invest $69 million and $63 million, respectively, in utility capital expenditures for normal distribution and support systems. Over the Company's five-year planning period ending December 31, 2009, Alagasco anticipates capital investments of approximately $327 million. The utility anticipates funding these capital requirements through internally generated capital and the utilization of credit facilities. In January 2005, Alagasco issued $80 million in long-term debt to repay amounts drawn on short-term credit facilities for capital expenditures and to refinance $30 million of Medium-Term Notes recalled by Alagasco in April 2004. In August 2005, Alagasco called $18 million of Medium-Term Notes maturing June 27, 2007 to July 5, 2022. During the fourth quarter of 2005, Alagasco plans to issue $80 million in long-term debt in part to refinance the $18 million of called Medium-Term Notes. A portion of the proceeds is also expected to be used to refinance $56.7 million of notes scheduled to be called subsequent to the fourth quarter debt issuance by Alagasco.
Energen Resources periodically enters into derivative commodity instruments that qualify as cash flow hedges under SFAS No. 133 to hedge its exposure to price fluctuations on oil, natural gas and natural gas liquids production. In addition, Alagasco periodically enters into cash flow derivative commodity instruments to hedge its exposure to price fluctuations on its gas supply. Such instruments may include regulated natural gas and crude oil futures contracts traded on the New York Mercantile Exchange (NYMEX) and over-the-counter swaps, collars and basis hedges with major energy derivative product specialists. The counterparties to the commodity instruments are investment banks and energy-trading firms. In some contracts, the amount of credit allowed before collateral must be posted for out-of-the-money hedges varies depending on the credit rating of the Company or Alagasco. In cases where this arrangement exists, generally the credit ratings must be maintained at investment grade status to have available counterparty credit. At September 30, 2005, the Company had $1.8 million posted in collateral payments with a certain counterparty.
Access to capital is an integral part of the Company's business plan. The Company regularly provides information to corporate rating agencies related to current business activities and future performance expectations. While the Company expects to have ongoing access to its short-term credit facilities and the broader long-term markets, continued access could be adversely affected by future economic and business conditions and credit rating downgrades.
Contractual Cash Obligations and Other Commitments
In the course of ordinary business activities, Energen enters into a variety of contractual cash obligations and other commitments. The following table summarizes the Company's significant contractual cash obligations, other than hedging contracts as of September 30, 2005.



|                                   |             | Payments Due before December 31,
|---------------------------------- | ----------- | --------------------------------
|(in thousands)                     | Total       | 2005                            
|                                   |             |                                 
|                                   |             |                                 
|Short-term debt                    | $ -         | $ -                             
|Long-term debt (1)                 | 676,390     | -                               
|Interest payments on debt (2)      | 486,270     | 9,661                           
|Purchase obligations (3)           | 227,898     | 13,887                          
|Capital lease obligations          | -           | -                               
|Operating leases                   | 50,055      | 957                             
|                                   |             |                                 
|Total contractual cash obligations | $ 1,440,613 | $ 24,505                        
|                                   |             |                                 



|(1) Long-term cash obligations include $1.5 million of unamortized debt discounts as of September 30, 2005.
(2) Includes interest on fixed rate debt and an estimate of adjustable rate debt. The adjustable rate interest is calculated based on the indexed rate in effect at September 30, 2005.
(3) Certain of the Company's long-term gas procurement contracts for the supply, storage and delivery of natural gas include fixed charges of approximately $228 million through October 2013. The Company also is committed to purchase minimum quantities of gas at market-related prices or to pay certain costs in the event the minimum quantities are not taken. These purchase commitments are 173.1 Bcf through April 2015.
Energen Resources operates in certain instances through joint ventures under joint operating agreements. Typically, the operator under a joint operating agreement enters into contracts, such as drilling contracts, for the benefit of all joint venture partners. Through the joint operating agreement, the non-operators reimburse, and in some cases advance, the funds necessary to meet the contractual obligations entered into by the operator. These obligations are typically shared on a working interest basis as defined in the joint operating contractual agreement.
The Company has two defined non-contributory pension plans and provides certain post-retirement healthcare and life insurance benefits. The Company is not required to make any funding payments during 2005 for the pension plans. The Company will reevaluate discretionary contributions in the fourth quarter of 2005 based on the annual measurement of pension obligations. The Company expects to make discretionary payments of $0.8 million to post-retirement benefit program assets during the remainder of 2005.
Recent Accounting Pronouncements
In December 2004, the Financial Accounting Standards Board (FASB) issued SFAS No. 123 (revised 2004), "Share-Based Payment (SFAS No. 123R)," which requires a fair value base method of accounting using pricing models that reflect the specific economics of a company's transactions. This statement is effective for the first annual reporting period beginning after June 15, 2005. The Company prospectively adopted the fair value recognition provisions of SFAS No. 123 (as amended), which provided methods of transition for a voluntary change to the fair value base method of accounting for stock-based employee compensation effective January 1, 2003. The Company will adopt SFAS No. 123R using the modified prospective application method for new awards effective January 1, 2006. The Company is currently evaluating its stock-based compensation and the application of SFAS No. 123R.
In December 2004, the FASB issued FSP No. 109-1, "Application of SFAS No. 109, Accounting for Income Taxes, to the provision within the American Jobs Creation Act of 2004 (the Act) that provides a tax deduction on qualified production activities." This Act includes a tax deduction of up to 9 percent (when fully phased-in) of the lesser of (a) qualified production activities income as defined in the Act, or (b) taxable income of the Company determined without regard to this deduction. This tax deduction would apply to qualified production activities of Energen Resources and would be limited to 50 percent of W-2 wages paid by the Company. Pursuant to FSP No. 109-1, the deduction will be reported in the period in which the deduction is claimed on the Company's tax return and will not have an effect on deferred tax assets or deferred tax liabilities. The Company estimates the impact of this tax legislation will reduce income tax expense by approximately $0.9 million during 2005.
In March 2005, the FASB issued FIN No. 47, "Accounting for Conditional Asset Retirement Obligations", which refers to a legal obligation to perform an asset retirement activity in which the timing and (or) method of settlement are conditional on a future event that may or may not be within the control of the entity. This interpretation is effective no later than the end of fiscal years ending after December 15, 2005. The impact of this interpretation on the Company is currently being evaluated.
Forward-Looking Statements and Risk Factors
Certain statements in this report express expectations of future plans, objectives and performance of the Company and its subsidiaries and constitute forward-looking statements made pursuant to the Safe Harbor provision of the Private Securities Litigation Reform Act of 1995. Except as otherwise disclosed, the forward-looking statements do not reflect the impact of possible or pending acquisitions, divestitures or restructurings. The absence of errors in input data, calculations and formulas used in estimates, assumptions and forecasts cannot be guaranteed. Neither the Company nor Alagasco undertakes any obligation to correct or update any forward-looking statements whether as a result of new information, future events or otherwise.
All statements based on future expectations rather than on historical facts are forward-looking statements that are dependent on certain events, risks and uncertainties that could cause actual results to differ materially from those anticipated. Some of these include, but are not limited to, economic and competitive conditions, inflation rates, legislative and regulatory changes, financial market conditions, our ability to access the capital markets, future business decisions, utility customer growth and retention and usage per customer, litigation results and other uncertainties, all of which are difficult to predict.
Third Party Facilities: The forward looking statements also assume generally uninterrupted access to third party oil and gas gathering, transportation, processing and storage facilities. Energen Resources relies upon such facilities for access to markets for its production. Alagasco relies upon such facilities for access to natural gas supplies. Such facilities are typically limited in number and geographically concentrated. An extended interruption of access to or service from these facilities, whether caused by weather events, natural disaster, accident, mechanical failure, criminal act or otherwise could result in material adverse financial consequences to Alagasco, Energen Resources and/or the Company.
Energen Resources Production: There are numerous uncertainties inherent in estimating quantities of proved oil and gas reserves and in projecting future rates of production and timing of development expenditures. The total amount or timing of actual future production may vary significantly from reserve and production estimates. In the event Energen Resources is unable to fully invest its planned acquisition, development and exploratory expenditures, future operating revenues, production, and proved reserves could be negatively affected. The drilling of development and exploratory wells can involve significant risks, including those related to timing, success rates and cost overruns, and these risks can be affected by lease and rig availability, complex geology and other factors.
Energen Resources Hedging: Although Energen Resources makes use of futures, swaps and fixed-price contracts to mitigate price risk, fluctuations in future commodity prices could materially affect the Company's financial position and results of operations and cash flows; furthermore, such risk mitigation activities may cause the Company's financial position and results of operations to be materially different from results that would have been obtained had such risk mitigation activities not occurred. The effectiveness of such risk-mitigation assumes that counterparties maintain satisfactory credit quality. The effectiveness of such risk mitigation also assumes that actual sales volumes will generally meet or exceed the volumes subject to the futures, swaps and fixed price contracts. A substantial failure to meet sales volume targets, whether caused by miscalculations, weather events, natural disaster, accident, criminal act or otherwise, could leave Energen Resources financially exposed to its counterparties and result in material adverse financial consequences to Energen Resources and the Company. The adverse effect could be increased if the adverse event was widespread enough to move market prices against Energen Resources' position.
Alagasco Hedging: Similarly, although Alagasco makes use of futures, swaps and fixed-price contracts to mitigate gas supply cost risk, fluctuations in future gas supply costs could materially affect its financial position and rates to customers. The effectiveness of Alagasco's risk mitigation assumes that its counterparties in such activities maintain satisfactory credit quality. The effectiveness of such risk mitigation also assumes that Alagasco's actual gas supply needs will generally meet or exceed the volumes subject to the futures, swaps and fixed price contracts. A substantial failure to experience projected gas supply needs, whether caused by miscalculations, weather events, natural disaster, accident, mechanical failure, criminal act or otherwise, could leave Alagasco financially exposed to its counterparties and result in material adverse financial consequences to Alagasco and the Company. The adverse effect could be increased if the adverse event was widespread enough to move market prices against Alagasco's position.
Operations: Inherent in the gas distribution activities of Alagasco and the oil and gas production activities of Energen Resources are a variety of hazards and operation risks, such as leaks, explosions and mechanical problems that could cause substantial financial losses. In addition, these risks could result in loss of human life, significant damage to property, environmental pollution, impairment of our operations and substantial losses to the Company. In accordance with customary industry practices we maintain insurance against some, but not all, of these risks and losses. The location of pipeline and storage facilities near populated areas, including residential areas, commercial business centers and industrial sites, could increase the level of damages resulting from these risks. The occurrence of any of these events could adversely affect Alagasco's, Energen Resources' and/or the Company's financial position, results of operations and cash flows.
Alagasco Service Territory: Alagasco's utility customers are geographically concentrated in central and north Alabama. Significant economic, weather, natural disaster, criminal act or other events that adversely affect this region could adversely affect Alagasco and the Company.
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|SELECTED BUSINESS SEGMENT DATA                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|ENERGEN CORPORATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|(Unaudited)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|(in thousands, except sales price data)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Oil and Gas Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Operating revenues from continuing operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Natural gas                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            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|Residential                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Commercial and industrial                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Transportation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Other                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Total                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Gas delivery volumes (MMcf)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Residential                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Commercial and industrial                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Transportation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Total                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Other data                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Depreciation and amortization                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Capital expenditures                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Operating income (loss)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           



|ITEM 3. 	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Energen Resources' major market risk exposure is in the pricing applicable to its oil and gas production. Historically, prices received for oil and gas production have been volatile because of seasonal weather patterns, world and national supply-and-demand factors and general economic conditions. Crude oil prices also are affected by quality differentials, by worldwide political developments and by actions of the Organization of Petroleum Exporting Countries. Basis differentials, like the underlying commodity prices, can be volatile because of regional supply-and-demand factors, including seasonal factors and the availability and price of transportation to consuming areas.
Energen Resources periodically enters into derivative commodity instruments that qualify as cash flow hedges under Statement of Financial Accounting Standard (SFAS) No. 133, "Accounting for Derivative Instruments and Hedging Activities," to hedge its exposure to price fluctuations on oil, natural gas and natural gas liquids production. In addition, Alagasco periodically enters into cash flow derivative commodity instruments to hedge its gas supply exposure. Such instruments may include regulated natural gas and crude oil futures contracts traded on the New York Mercantile Exchange (NYMEX) and over-the-counter swaps, collars and basis hedges with major energy derivative product specialists. The counterparties to the commodity instruments are investment banks and energy-trading firms. These counterparties have been deemed creditworthy by the Company and have agreed in certain instances to post collateral with the Company when unrealized gains on hedges exceed certain specified contractual amounts. Notwithstanding these agreements, the Company is at risk for economic loss based upon the creditworthiness of its counterparties. In some contracts, the amount of credit allowed before Energen Resources and Alagasco must post collateral for out-of-the-money hedges varies depending on the credit rating of the Company or Alagasco. All hedge transactions are subject to the Company's risk management policy, approved by the Board of Directors, which does not permit speculative positions. The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking the hedge. The maximum term over which Energen Resources has hedged exposures to the variability of cash flows is through December 31, 2007.
See Note 4 to the Unaudited Condensed Financial Statements for details related to the Company's hedging activities.
The Company's interest rate exposure as of September 30, 2005, was minimal since approximately 85 percent of long-term debt obligations were at fixed rates.







|ITEM 4. CONTROLS AND PROCEDURES
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|                               
|                               
|(a)                            
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|(b)                            
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|PART II. OTHER INFORMATION                                                                                                                                                                                                                                        
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|                                                                                                                                                                                                                                                                  
|ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS*                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                  
|Period                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                  
|July 1, 2005 through July 30, 2005                                                                                                                                                                                                                                
|August 1, 2005 through August 31, 2005                                                                                                                                                                                                                            
|September 1, 2005 through September 30, 2005                                                                                                                                                                                                                      
|Total                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                  
|* Share and per share data have been restated to reflect a 2-for-1 stock split payable June 1, 2005 (see Note 15 to theUnaudited Condensed Financial Statements).                                                                                                 
|** Acquired in connection with tax withholdings and payment of exercise price on stock compensation plans.                                                                                                                                                        
|*** By resolution adopted May 24, 1994, and supplemented by a resolution adopted April 26, 2000, the Board of Directors authorized the Company to repurchase up to 3,564,400 shares of the Company's common stock. The resolutions do not have an expiration date.
|                                                                                                                                                                                                                                                                  
|ITEM 6. EXHIBITS                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                  
|31(a) - Section 302 Certificate required by Rule 13a-14(a) or Rule 15d-14(a)
31(b) - Section 302 Certificate required by Rule 13a-14(a) or Rule 15d-14(a)
32 - Section 906 Certificate pursuant to 18 U.S.C. Section 1350                                         
|SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.                                                          





|                 |  | ENERGEN CORPORATION                                                    
|---------------- |  | -----------------------------------------------------------------------
|                 |  | ALABAMA GAS CORPORATION                                                
|                 |  |                                                                        
|November 8, 2005 |  | By/s/ Wm. Michael Warren, Jr.                                          
|                 |  | Wm. Michael Warren, Jr.                                                
|                 |  | Chairman, President and Chief Executive                                
|                 |  | Officer of Energen Corporation, Chairman and Chief Executive Officer of
|                 |  | Alabama Gas Corporation                                                
|                 |  |                                                                        
|                 |  |                                                                        
|                 |  |                                                                        
|November 8, 2005 |  | By/s/ G. C. Ketcham                                                    
|                 |  | G. C. Ketcham                                                          
|                 |  | Executive Vice President, Chief                                        
|                 |  | Financial Officer and Treasurer of                                     
|                 |  | Energen Corporation and Alabama Gas                                    
|                 |  | Corporation                                                            
|                 |  |                                                                        
|                 |  |                                                                        
|November 8, 2005 |  | By/s/ Grace B. Carr                                                    
|                 |  | Grace B. Carr                                                          
|                 |  | Vice President and Controller of Energen                               
|                 |  | Corporation                                                            
|                 |  |                                                                        
|                 |  |                                                                        
|November 8, 2005 |  | By/s/ Paula H. Rushing                                                 
|                 |  | Paula H. Rushing                                                       
|                 |  | Vice President-Finance of Alabama Gas                                  
|                 |  | Corporation                                                            
|                 |  |                                                                        
|                 |  |                                                                        
|                 |  |