<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEETS AND CONSOLIDATED STATEMETNS OF OPERATIONS FOUND ON PAGES 3 AND 4
OF THE COMPANY'S FORM 10K/A FOR THE YEAR TO DATE AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<S> <C> <C>
<PERIOD-TYPE> 12-MOS 12-MOS
<FISCAL-YEAR-END> DEC-31-1998 DEC-31-1999
<PERIOD-START> JAN-01-1998 JAN-01-1999
<PERIOD-END> DEC-31-1998 DEC-31-1999
<CASH> 136,208 52,323
<SECURITIES> 0 0
<RECEIVABLES> 246,930 300,507
<ALLOWANCES> 0 0
<INVENTORY> 0 0
<CURRENT-ASSETS> 408,375 418,437
<PP&E> 14,085,926 15,099,876
<DEPRECIATION> (4,683,752) (8,294,526)
<TOTAL-ASSETS> 10,232,970 7,456,422
<CURRENT-LIABILITIES> 312,675 250,492
<BONDS> 4,769,529 3,326,191
0 0
0 0
<COMMON> 0 0
<OTHER-SE> 5,150,766 3,879,739
<TOTAL-LIABILITY-AND-EQUITY> 10,232,970 7,456,422
<SALES> 0 0
<TOTAL-REVENUES> 4,245,660 4,624,903
<CGS> 0 0
<TOTAL-COSTS> 4,475,382 4,706,119
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 204,022 298,121
<INCOME-PRETAX> 0 0
<INCOME-TAX> 0 0
<INCOME-CONTINUING> 0 0
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (433,744) (379,337)
<EPS-BASIC> 0 0
<EPS-DILUTED> 0 0
</TABLE>