NOTICE OF
                                
                           AMENDMENT
                                
                        PUBLIC OFFERING
                                
                               OF
                                
                      CROWN PETROLEUM AND
                       NATURAL GAS RIGHTS
                                
                                
                        1997 NOVEMBER 12
                        12 NOON, CALGARY



    THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS:


                       --- PLAINS AREA ---                                      


  LEASE   HECTARES  LAND DESCRIPTION
  -----   --------  ----------------

  A0020   128
                    4-15-014:  7W                                                              
                    PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE                      
                         BOW ISLAND SD                           (DRRZD 8)    
                    TO THE BASE OF THE MANNVILLE GRP             (DRRZD 4)    
                                                                                               
 --------------------------------------------------------------------
                                                                  END

             DEEPER RIGHTS REVERSION ZONE DESIGNATIONS                           

   APPLICABLE TO THE 1997, NOVEMBER 12 PUBLIC OFFERING NOTICE       
          


                                                                                              
     DRRZD: 4               Zone:  2480  MANNVILLE GRP                                        
                                                                                              
                        KEY WELL: 00/06-16-041-08W4/0                                         
                        INTERVAL: 2,557.00  -  2,985.00  Feet                                 
                        LOG TYPE: INDUCTION ELECTRICAL                                        
 -----------------------------------------------------------------
                                                                                              
     DRRZD: 8               Zone:  2130  BOW ISLAND SD                                        
                                                                                              
                        KEY WELL: 00/11-31-011-10W4/0                                         
                        INTERVAL: 2,140.00  -  2,472.00  Feet                                 
                        LOG TYPE: INDUCTION ELECTRICAL                                        
 ------------------------------------------------------------------
                                                                   END