NOTICE OF CHANGE (AMENDMENTS/WITHDRAWALS) PUBLIC OFFERING OF CROWN PETROLEUM AND NATURAL GAS RIGHTS 2003 OCTOBER 29 12 noon, CALGARY 2003 September 26 Retha Purkis - Manager EDMONTON, Alberta P & NG Agreement Sales ENERGY LEASE SCHEDULE PETROLEUM AND NATURAL GAS LEASES 2003, OCTOBER 29 LEASE HECTARES LAND DESCRIPTION ----- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- NORTHERN REGION --- A0799 256 5-09-055: 1 PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) TO THE BASE OF THE MANNVILLE GRP (DRRZD 4) ------------------------------------------------------------------------------------- END APPENDIX 2 DEEPER RIGHTS REVERSION ZONE DESIGNATIONS APPLICABLE TO THE 2003, OCTOBER 29 PUBLIC OFFERING NOTICE DRRZD: 4 ZONE: 2480 MANNVILLE GRP INTERVAL: 2,557.00 - 2,985.00 FEET KEY WELL: 00/06-16-041-08W4/0 LOG TYPE: INDUCTION ELECTRICAL ------------------------------------------------------------------------------------- DRRZD: 280 ZONE: 1060 EDMONTON GRP INTERVAL: 335.00 - 962.00 METRES KEY WELL: 00/06-24-044-04W5/0 LOG TYPE: COMPENSATED NEUTRON-LITHO DENSITY ------------------------------------------------------------------------------------- END