<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE GATEWAY
ENERGY CORPORATION FORM 10-QSB FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 62,942
<SECURITIES> 691,387
<RECEIVABLES> 1,017,637
<ALLOWANCES> 0
<INVENTORY> 230,421
<CURRENT-ASSETS> 2,062,094
<PP&E> 9,438,579
<DEPRECIATION> 3,009,215
<TOTAL-ASSETS> 9,135,991
<CURRENT-LIABILITIES> 1,348,362
<BONDS> 601,522
0
0
<COMMON> 3,828,050
<OTHER-SE> 3,358,057
<TOTAL-LIABILITY-AND-EQUITY> 9,135,991
<SALES> 3,335,023
<TOTAL-REVENUES> 3,682,835
<CGS> 2,554,784
<TOTAL-COSTS> 1,712,277<F1>
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 67,024
<INCOME-PRETAX> (651,250)
<INCOME-TAX> 0
<INCOME-CONTINUING> (651,250)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (651,250)
<EPS-BASIC> (0.04)
<EPS-DILUTED> (0.04)
<FN>
<F1>INCLUDES $373,412 OF NON-CASH EXPENSES
</FN>
</TABLE>