NOTICE OF CHANGE (AMENDMENTS/WITHDRAWALS) PUBLIC OFFERING OF CROWN PETROLEUM AND NATURAL GAS RIGHTS 2007 JANUARY 10 2006 December 11 Retha Purkis - Manager EDMONTON, Alberta P & NG Agreement Sales ENERGY LEASE SCHEDULE PETROLEUM AND NATURAL GAS LEASES 2007, JANUARY 10 LEASE HECTARES LAND DESCRIPTION ----- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- PLAINS REGION --- A0072 256 4-28-033: 29 PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE MANNVILLE GRP (DRRZD 4) ------------------------------------------------------------------------------------- END APPENDIX 2 DEEPER RIGHTS REVERSION ZONE DESIGNATIONS APPLICABLE TO THE 2007, JANUARY 10 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 ------------------------------------------------------------------------------------- END