<ARTICLE>                     5
<MULTIPLIER>                  1,000
       
                                                                                       
<PERIOD-TYPE>                                        6-MOS                     YEAR                     YEAR 
<FISCAL-YEAR-END>                              DEC-31-1997              DEC-31-1996              DEC-31-1995 
<PERIOD-START>                                 JAN-01-1997              JAN-01-1996              JAN-01-1995 
<PERIOD-END>                                   JUN-29-1997              DEC-31-1996              DEC-31-1995 
<CASH>                                              14,723                    5,788                    8,523 
<SECURITIES>                                             0                        0                        0 
<RECEIVABLES>                                       15,406                   36,859                   28,850
<ALLOWANCES>                                           664                      570                      323 
<INVENTORY>                                              0                        0                        0 
<CURRENT-ASSETS>                                    40,750                   52,177                   44,362 
<PP&E>                                             237,645                  228,713                  186,092 
<DEPRECIATION>                                     127,008                  119,924                  109,321 
<TOTAL-ASSETS>                                     177,528                  182,544                  136,405 
<CURRENT-LIABILITIES>                               31,925                   39,751                   33,630 
<BONDS>                                                  0                        0                        0 
<PREFERRED-MANDATORY>                                5,318                    5,318                    2,600 
<PREFERRED>                                              0                        0                        0 
<COMMON>                                             2,677                    2,677                    2,810 
<OTHER-SE>                                          10,476                   13,046                   16,969 
<TOTAL-LIABILITY-AND-EQUITY>                       177,528                  182,544                  136,405 
<SALES>                                                  0                        0                        0 
<TOTAL-REVENUES>                                   156,545                  281,075                  245,706 
<CGS>                                                    0                        0                        0 
<TOTAL-COSTS>                                      154,796                  274,433                  239,287 
<OTHER-EXPENSES>                                       165                     (795)                    (110)
<LOSS-PROVISION>                                         0                        0                        0 
<INTEREST-EXPENSE>                                   4,515                    7,553                    5,978 
<INCOME-PRETAX>                                     (2,931)                    (116)                     551 
<INCOME-TAX>                                        (1,223)                     (46)                     220 
<INCOME-CONTINUING>                                 (1,708)                    (162)                     331 
<DISCONTINUED>                                           0                        0                        0 
<EXTRAORDINARY>                                       (199)                       0                        0 
<CHANGES>                                                0                        0                        0 
<NET-INCOME>                                        (1,907)                    (162)                     331 
<EPS-PRIMARY>                                            0                        0                        0 
<EPS-DILUTED>                                            0                        0                        0