NOTICE OF CHANGE (AMENDMENTS/WITHDRAWALS) PUBLIC OFFERING OF CROWN PETROLEUM AND NATURAL GAS RIGHTS 2006 JANUARY 25 12 noon, CALGARY 2005 December 13 Retha Purkis - Manager EDMONTON, Alberta P & NG Agreement Sales ENERGY LEASE SCHEDULE PETROLEUM AND NATURAL GAS LEASES 2006, JANUARY 25 LEASE HECTARES LAND DESCRIPTION ----- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- PLAINS REGION --- A0755 256 TRACT ONE 5-04-036: 32SW PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE JURASSIC SYSTEM (DRRZD 90) TRACT TWO 5-04-036: 32N,SE NATURAL GAS BELOW THE TOP OF THE RUNDLE GRP (ZD 275) TO THE BASE OF THE TURNER VALLEY FM (DRRZD 28) PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE TURNER VALLEY FM (DRRZD 28) ------------------------------------------------------------------------------------- END APPENDIX 1 ZONE DESIGNATIONS APPLICABLE TO THE 2006, JANUARY 25 PUBLIC OFFERING NOTICE ZD: 275 ZONE: 6100 RUNDLE GRP INTERVAL: 7,570.00 - 7,843.00 FEET KEY WELL: 00/04-05-037-03W5/0 LOG TYPE: INDUCTION ELECTRIC ------------------------------------------------------------------------------------- END APPENDIX 2 DEEPER RIGHTS REVERSION ZONE DESIGNATIONS APPLICABLE TO THE 2006, JANUARY 25 PUBLIC OFFERING NOTICE DRRZD: 28 ZONE: 6300 TURNER VALLEY FM INTERVAL: 5,817.00 - 6,172.00 FEET KEY WELL: 00/08-30-019-02W5/0 LOG TYPE: GAMMA RAY NEUTRON AND: ALL OTHER STRATA WHICH WERE DEPOSITED IN LATERAL CONTINUITY WITH THE STRATA DESCRIBED IN THE ABOVE INTERVAL AND WHICH OCCUR IN WHOLE OR IN PART WITHIN ANY OTHER FAULT BLOCK. ------------------------------------------------------------------------------------- DRRZD: 90 ZONE: 4000 JURASSIC SYSTEM INTERVAL: 7,052.00 - 7,148.00 FEET KEY WELL: 00/06-29-039-03W5/0 LOG TYPE: INDUCTION ELECTROLOG ------------------------------------------------------------------------------------- END