Natural resource asset accounts provide a broader dimension to our nation's national wealth by helping to measure the stocks of natural resources such as energy resources (for example, oil and gas), mineral resources (for example, zinc, potash), timber and land. These accounts form the basis of the estimates of Canada's natural resource wealth that are integrated into the national balance sheet accounts. More specifically, these estimates are incorporated into annual estimates of national wealth. National wealth covers produced as well as non-produced assets, which include natural resources by major type.