NOTICE OF CHANGE (AMENDMENTS/WITHDRAWALS) PUBLIC OFFERING OF CROWN PETROLEUM AND NATURAL GAS RIGHTS 2010 MAY 05 2010 March 25 Retha Purkis - Manager EDMONTON, Alberta P & NG Sales and Registrations ENERGY LEASE SCHEDULE PETROLEUM AND NATURAL GAS LEASES 2010, MAY 05 LEASE HECTARES LAND DESCRIPTION ----- -------- ---------------- THE FOLLOWING PARCEL(S) SHOULD READ AS FOLLOWS --- PLAINS REGION --- A0140 256 (HRM001501) 4-20-041: 14 PETROLEUM AND NATURAL GAS BELOW THE BASE OF THE BELLY RIVER GRP (DRRZD 39) TO THE BASE OF THE SECOND WHITE SPECKS (DRRZD 13) ------------------------------------------------------------------------------------- END APPENDIX 2 DEEPER RIGHTS REVERSION ZONE DESIGNATIONS APPLICABLE TO THE 2010, MAY 05 PUBLIC OFFERING NOTICE DRRZD: 13 ZONE: 1860 SECOND WHITE SPECKS INTERVAL: 1,820.00 - 2,030.00 FEET KEY WELL: 00/10-17-014-09W4/0 LOG TYPE: INDUCTION ELECTRIC ------------------------------------------------------------------------------------- DRRZD: 39 ZONE: 1260 BELLY RIVER GRP INTERVAL: 1,688.00 - 2,453.00 FEET KEY WELL: 00/07-18-032-22W4/0 LOG TYPE: INDUCTION ELECTRICAL ------------------------------------------------------------------------------------- END APPENDIX 3 ADDENDA AND CONTACTS APPLICABLE TO THE 2010, MAY 05 PUBLIC OFFERING NOTICE HRM001501 LAND DESCRIPTION LEASE A0140 4-20-041: 14SP IS/ARE WITHIN AN HISTORICAL RESOURCES MANAGEMENT AREA. PURSUANT TO SEC. 37(2) OF THE HISTORICAL RESOURCES ACT, AN HISTORICAL RESOURCES IMPACT ASSESSMENT MAY BE REQUIRED PRIOR TO CONDUCTING ANY SURFACE DISTURBANCE. SURFACE ACCESS IS SUBJECT TO SPECIFIC RESTRICTIONS FOR FURTHER INFORMATION, PLEASE CONTACT: DEAN WETZEL LAND USE PLANNER, OIL SANDS PARKS, RECREATION AND CULTURE TOURISM HERITAGE RESOURCE MANAGEMENT BRANCH LAND USE PLANNING SECTION OLD ST STEPHEN'S COLLEGE 8820 112 ST NW EDMONTON AB T6G 2P8 (780) 431-2332 ------------------------------------------------------------------------------------- END