<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE UNAUDITED FINANCIAL STATEMENTS OF 3DX TECHNOLOGIES INC. FOR THE PERIOD ENDED JUNE 30, 1998. THIS SCHEDULE IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <CASH> 1,564,655 <SECURITIES> 0 <RECEIVABLES> 936,324 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 2,590,853 <PP&E> 40,615,266 <DEPRECIATION> 24,470,413 <TOTAL-ASSETS> 18,804,251 <CURRENT-LIABILITIES> 5,420,277 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 89,139 <OTHER-SE> 13,294,835 <TOTAL-LIABILITY-AND-EQUITY> 18,804,251 <SALES> 2,072,415 <TOTAL-REVENUES> 2,090,372 <CGS> 334,796 <TOTAL-COSTS> 8,481,126 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (6,390,754) <INCOME-TAX> 0 <INCOME-CONTINUING> (6,390,754) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (6,390,754) <EPS-PRIMARY> (0.85) <EPS-DILUTED> (0.85)