<ARTICLE> 5

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          174500
<SECURITIES>                                         0
<RECEIVABLES>                                  1501500
<ALLOWANCES>                                         0<F1>
<INVENTORY>                                    1257500
<CURRENT-ASSETS>                               3333900
<PP&E>                                        10780200
<DEPRECIATION>                                 4586800
<TOTAL-ASSETS>                                12088300
<CURRENT-LIABILITIES>                          3980700
<BONDS>                                        2110900
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                           0<F1>
<TOTAL-LIABILITY-AND-EQUITY>                  12088300
<SALES>                                        6273800
<TOTAL-REVENUES>                               6273800
<CGS>                                          3703500
<TOTAL-COSTS>                                  5180700
<OTHER-EXPENSES>                                     0<F1>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              108100
<INCOME-PRETAX>                                1017000
<INCOME-TAX>                                    327000
<INCOME-CONTINUING>                             765700
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    765700
<EPS-BASIC>                                     1.43
<EPS-DILUTED>                                     1.42
<FN>
<F1>Items not disclosed since they are not required for interim reporting under
regulation S-X, Article 10
</FN>