<ARTICLE>                                                           5

<MULTIPLIER>                                                        1
<CURRENCY>                                       U.S. Dollars
       
                                                      
<PERIOD-TYPE>                                             6-MOS
<FISCAL-YEAR-END>                                         DEC-31-1996
<PERIOD-START>                                            JAN-01-1996
<PERIOD-END>                                              JUN-30-1996
<EXCHANGE-RATE>                                                     1
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<SECURITIES>                                                        0
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<ALLOWANCES>                                                   35,000
<INVENTORY>                                                         0
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<PP&E>                                                     98,852,730
<DEPRECIATION>                                             35,128,935
<TOTAL-ASSETS>                                             87,559,114
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<BONDS>                                                             0
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<PREFERRED>                                                         0
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<CGS>                                                      46,397,876
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<LOSS-PROVISION>                                               35,000
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<INCOME-TAX>                                                6,400,000
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<EPS-PRIMARY>                                                    1.59
<EPS-DILUTED>                                                    1.59