NOTICE OF CHANGE (AMENDMENTS/WITHDRAWALS) PUBLIC OFFERING OF CROWN PETROLEUM AND NATURAL GAS RIGHTS 2003 NOVEMBER 12 12 noon, CALGARY 2003 September 26 Retha Purkis - Manager EDMONTON, Alberta P & NG Agreement Sales ENERGY LEASE SCHEDULE PETROLEUM AND NATURAL GAS LEASES 2003, NOVEMBER 12 LEASE HECTARES LAND DESCRIPTION ----- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- PLAINS REGION --- A0029 256 4-24-019: 29 PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) ------------------------------------------------------------------------------------- --- NORTHERN REGION --- A0135 192 5-13-046: 32N,SE PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) TO THE BASE OF THE SHUNDA FM (DRRZD 29) ------------------------------------------------------------------------------------- END LICENCE SCHEDULE PETROLEUM AND NATURAL GAS LICENCES 2003, NOVEMBER 12 LICENCE HECTARES LAND DESCRIPTION ------- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- NORTHERN REGION --- B0256 704 TRACT ONE 5-13-046: 23SW;27 PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) EXCEPTING NATURAL GAS IN THE L SANDSTONE OF L BLAIR (ZD 317) EXCEPTING NATURAL GAS IN THE ROCK CREEK MBR (ZD 3408-A) EXCEPTING NATURAL GAS IN THE ELKTON-SHUNDA (ZD 317) EXCEPTING NATURAL GAS IN THE WINTERBURN GRP (ZD 3408) TRACT TWO 5-13-046: 23E PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE SHUNDA FM (DRRZD 29) TRACT THREE 5-13-046: 26W PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) TO THE BASE OF THE ROCK CREEK MBR (DRRZD 60) TRACT FOUR 5-13-046: 23NW PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE EDMONTON GRP (DRRZD 280) TO THE BASE OF THE ROCK CREEK MBR (DRRZD 60) EXCEPTING NATURAL GAS IN THE L SANDSTONE OF L BLAIR (ZD 317) EXCEPTING NATURAL GAS IN THE ROCK CREEK MBR (ZD 3408-A) TRACT FIVE 5-13-046: 26NE PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE VIKING FM (DRRZD 6) TO THE BASE OF THE ROCK CREEK MBR (DRRZD 60) ------------------------------------------------------------------------------------- B0257 512 5-13-046: 23W;26W;27 PETROLEUM AND NATURAL GAS TO THE BASE OF THE EDMONTON GRP (DRRZD 280) ------------------------------------------------------------------------------------- B0258 576 5-13-046: 32N,SE;33;34S PETROLEUM AND NATURAL GAS TO THE BASE OF THE EDMONTON GRP (DRRZD 280) ------------------------------------------------------------------------------------- END APPENDIX 1 ZONE DESIGNATIONS APPLICABLE TO THE 2003, NOVEMBER 12 PUBLIC OFFERING NOTICE ZD: 317 ZONE: 3081 L SANDSTONE OF L BLAIR INTERVAL: 9,560.00 - 9,645.00 FEET KEY WELL: 00/10-18-046-13W5/0 LOG TYPE: INDUCTION ELECTRIC ZONE: 6390 ELKTON-SHUNDA INTERVAL: 9,884.00 - 10,109.00 FEET KEY WELL: 00/10-18-046-13W5/0 LOG TYPE: INDUCTION ELECTRIC ------------------------------------------------------------------------------------- ZD: 3408 ZONE: 6700 WINTERBURN GRP INTERVAL: 11,069.00 - 11,519.00 FEET KEY WELL: 00/06-31-047-13W5/0 LOG TYPE: COMPENSATED NEUTRON-FORMATION DENSITY ------------------------------------------------------------------------------------- ZD: 3408-A ZONE: 4320 ROCK CREEK MBR INTERVAL: 2,883.50 - 2,901.00 METRES KEY WELL: 00/02-30-047-13W5/0 LOG TYPE: COMPENSATED NEUTRON-FORMATION DENSITY ------------------------------------------------------------------------------------- END APPENDIX 2 DEEPER RIGHTS REVERSION ZONE DESIGNATIONS APPLICABLE TO THE 2003, NOVEMBER 12 PUBLIC OFFERING NOTICE DRRZD: 6 ZONE: 2140 VIKING FM INTERVAL: 2,600.00 - 2,680.00 FEET KEY WELL: 00/10-10-042-14W4/0 LOG TYPE: INDUCTION ELECTRICAL ------------------------------------------------------------------------------------- DRRZD: 29 ZONE: 6400 SHUNDA FM INTERVAL: 11,048.00 - 11,229.00 FEET KEY WELL: 00/07-24-041-12W5/0 LOG TYPE: BOREHOLE COMPENSATED SONIC 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: 60 ZONE: 4320 ROCK CREEK MBR INTERVAL: 2,502.50 - 2,531.50 METRES KEY WELL: 00/10-35-049-13W5/2 LOG TYPE: DUAL LATEROLOG ------------------------------------------------------------------------------------- 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