<ARTICLE> 5
<MULTIPLIER> 1000
       
                                                                                            

<PERIOD-TYPE>                   9-MOS                   YEAR                   3-MOS                   6-MOS
9-MOS
<FISCAL-YEAR-END>                          DEC-31-1994             DEC-31-1994             DEC-31-1995             DEC-31-1995
             DEC-31-1995
<PERIOD-END>                               SEP-30-1994             DEC-31-1994             MAR-31-1995             JUN-30-1995
             SEP-30-1995
<CASH>                                          12,705                  16,609                  28,227                  25,073
                  14,579
<SECURITIES>                                         0                       0                       0                       0
                  38,000
<RECEIVABLES>                                  131,643                 150,541                 137,501                 152,277
                 146,577
<ALLOWANCES>                                     4,567                   4,538                   4,215                   4,193
                   4,022
<INVENTORY>                                     12,834                  11,768                  13,776                  14,210
                  16,476
<CURRENT-ASSETS>                               242,935                 268,094                 241,094                 265,037
                 625,970
<PP&E>                                         697,659                 701,932                 708,640                 725,140
                 731,194
<DEPRECIATION>                                 280,631                 282,398                 288,574                 298,225
                 306,701
<TOTAL-ASSETS>                               1,632,397               1,609,424               1,562,848               1,588,111
               1,668,403
<CURRENT-LIABILITIES>                          185,845                 231,369                 208,043                 196,483
                 232,218
<BONDS>                                        110,358                 110,431                  63,409                  63,433
                  63,461
<PREFERRED-MANDATORY>                                0                       0                       0                       0
                       0
<PREFERRED>                                          0                       0                       0                       0
                       0
<COMMON>                                           798                     799                     799                     800
                     800
<OTHER-SE>                                   1,072,887               1,082,669               1,104,427               1,136,325
               1,160,247
<TOTAL-LIABILITY-AND-EQUITY>                 1,632,397               1,609,424               1,562,848               1,588,111
               1,668,403
<SALES>                                              0                       0                       0                       0
                       0
<TOTAL-REVENUES>                               699,735                 964,595                 245,269                 504,976
                 749,307
<CGS>                                                0                       0                       0                       0
                       0
<TOTAL-COSTS>                                        0                       0                       0                       0
                       0
<OTHER-EXPENSES>                               555,881                 777,115                 204,188                 410,682
                 620,307
<LOSS-PROVISION>                                 2,593                   3,870                     844                   2,107
                   3,871
<INTEREST-EXPENSE>                              12,934                  16,274                   3,353                   6,182
                   8,623
<INCOME-PRETAX>                                159,561                 181,070                  37,666                  86,781
                 119,109
<INCOME-TAX>                                    67,597                  80,441                  16,971                  38,098
                  52,285
<INCOME-CONTINUING>                             84,896                  92,796                  19,760                  46,880
                  64,237
<DISCONTINUED>                                  14,130                  29,887                   9,534                  18,373
                  28,650
<EXTRAORDINARY>                                      0                       0                       0                       0
                       0
<CHANGES>                                            0                       0                       0                       0
                       0
<NET-INCOME>                                    99,026                 122,683                  29,114                  65,263
                  92,887
<EPS-PRIMARY>                                    $1.13                   $1.22                   $0.25                   $0.59
                   $0.80
<EPS-DILUTED>                                    $1.13                   $1.22                   $0.25                   $0.59
                   $0.80