<ARTICLE> 5
<LEGEND>
THIS LEGEND CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONDENSED
CONSOLIDATED BALANCE SHEET AND THE CONDENSED CONSOLIDATED STATEMENT OF INCOME
FOR THE SIX MONTHS ENDED JUNE 30, 1997, CONTAINED IN TRANSCONTINENTAL GAS PIPE
LINE CORPORATION'S 1997 SECOND QUARTER REPORT ON FORM 10-Q AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           1,221
<SECURITIES>                                         0
<RECEIVABLES>                                   10,778
<ALLOWANCES>                                         0
<INVENTORY>                                     99,707
<CURRENT-ASSETS>                               347,513
<PP&E>                                       3,824,498
<DEPRECIATION>                                 399,601
<TOTAL-ASSETS>                               3,941,025
<CURRENT-LIABILITIES>                          387,787
<BONDS>                                        673,074
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   1,868,321
<TOTAL-LIABILITY-AND-EQUITY>                 3,941,025
<SALES>                                        311,461
<TOTAL-REVENUES>                               694,612
<CGS>                                          311,461
<TOTAL-COSTS>                                  519,068
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              33,315
<INCOME-PRETAX>                                 84,008
<INCOME-TAX>                                    32,582
<INCOME-CONTINUING>                             51,426
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    51,426
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0