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                                                                      EXHIBIT 21
 
                  PUBLIC SERVICE ENTERPRISE GROUP INCORPORATED
 
                            SIGNIFICANT SUBSIDIARIES
 


                                                                                       STATE OF
                                NAME                                   OWNERSHIP %   INCORPORATION
- ---------------------------------------------------------------------  -----------   -------------
                                                                               
Public Service Electric and Gas Company..............................      100          New Jersey

 
     The remaining subsidiaries of Public Service Enterprise Group Incorporated
are not significant subsidiaries as defined in Regulation S-X.