<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM WILLIAMS
ENERGY PARTNERS PREDECESSOR COMBINED FINANCIAL STATEMENTS AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH WILLIAMS ENERGY PARTNERS L.P. S-1 FILING.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> YEAR 6-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-2000
<PERIOD-START> JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1999 JUN-30-2000
<CASH> 0 0
<SECURITIES> 0 0
<RECEIVABLES> 14,225 25,923
<ALLOWANCES> 0 0
<INVENTORY> 0 0
<CURRENT-ASSETS> 14,949 26,557
<PP&E> 299,105 301,664
<DEPRECIATION> 31,043 35,447
<TOTAL-ASSETS> 283,339 293,329
<CURRENT-LIABILITIES> 5,457 5,005
<BONDS> 197,165 202,878
0 0
0 0
<COMMON> 0 0
<OTHER-SE> 66,851 69,688
<TOTAL-LIABILITY-AND-EQUITY> 283,339 293,329
<SALES> 0 0
<TOTAL-REVENUES> 44,388 36,620
<CGS> 0 0
<TOTAL-COSTS> 28,703 25,805
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 4,775 6,243
<INCOME-PRETAX> 10,910 4,572
<INCOME-TAX> 4,144 1,735
<INCOME-CONTINUING> 6,766 2,837
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 6,766 2,837
<EPS-BASIC> 0 0
<EPS-DILUTED> 0 0
</TABLE>