The late Cretaceous Cardium Formation,which existing in the mud shale Colorado Group has the highest hydrocarbon volumes in the Western Canada Sedimentary Basin(WCSB)of Alberta.It represents approximately 20percent of the hydrocarbons indentified in WCSB as initial volume-in-place and as remaining established reserves.The Cardium Formation is developed from the very The late Cretaceous Cardium Formation, which existing in the mud shale Colorado Group has the highest hydrocarbon volumes in the Western Canada Sedimentary Basin (WCSB) of Alberta. It is approximately 20percent of the hydrocarbons identified in WCSB as initial volume-in-place and as remaining established reserves.The Cardium Formation is developed from the very