<ARTICLE>        UT 
<LEGEND>  
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF ENERGEN CORPORATION FOR THE SIX MONTHS ENDED
MARCH 31, 1999, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH 
FINANCIAL STATEMENTS.
</LEGEND>  
<CIK>            0000277595 
<NAME>           ENERGEN CORPORATION 
<MULTIPLIER>     1,000 
          
                                
<PERIOD-TYPE>                   6-MOS  
<FISCAL-YEAR-END>               SEP-30-1999   
<PERIOD-END>                    MAR-31-1999   
<BOOK-VALUE>                       PER-BOOK 
<TOTAL-NET-UTILITY-PLANT>           304,170 
<OTHER-PROPERTY-AND-INVEST>         558,253 
<TOTAL-CURRENT-ASSETS>              152,267 
<TOTAL-DEFERRED-CHARGES>             19,239 
<OTHER-ASSETS>                            0 
<TOTAL-ASSETS>                    1,033,929 
<COMMON>                                297 
<CAPITAL-SURPLUS-PAID-IN>           204,694      
<RETAINED-EARNINGS>                 167,048  
<TOTAL-COMMON-STOCKHOLDERS-EQ>      371,751 
<PREFERRED-MANDATORY>                     0  
<PREFERRED>                               0 
<LONG-TERM-DEBT-NET>                371,820   
<SHORT-TERM-NOTES>                  150,000 
<LONG-TERM-NOTES-PAYABLE>                 0      
<COMMERCIAL-PAPER-OBLIGATIONS>            0  
<LONG-TERM-DEBT-CURRENT-PORT>         1,955     
<PREFERRED-STOCK-CURRENT>                 0 
<CAPITAL-LEASE-OBLIGATIONS>               0     
<LEASES-CURRENT>                          0     
<OTHER-ITEMS-CAPITAL-AND-LIAB>      138,403     
<TOT-CAPITALIZATION-AND-LIAB>     1,033,929   
<GROSS-OPERATING-REVENUE>           302,358   
<INCOME-TAX-EXPENSE>                (1,162)  
<OTHER-OPERATING-EXPENSES>          238,618  
<TOTAL-OPERATING-EXPENSES>          237,456  
<OPERATING-INCOME-LOSS>              63,740  
<OTHER-INCOME-NET>                 (18,691)  
<INCOME-BEFORE-INTEREST-EXPEN>       65,416  
<TOTAL-INTEREST-EXPENSE>             19,205  
<NET-INCOME>                         46,211   
<PREFERRED-STOCK-DIVIDENDS>               0 
<EARNINGS-AVAILABLE-FOR-COMM>        46,211  
<COMMON-STOCK-DIVIDENDS>              9,442  
<TOTAL-INTEREST-ON-BONDS>            13,694   
<CASH-FLOW-OPERATIONS>               72,025  
<EPS-PRIMARY>                          1.57 
<EPS-DILUTED>                          1.55