| The costs excluded from depletable costs in Other Countries represent costs related to unproved properties incurred in cost centres that are considered to be in the pre-production stage. |
| In contrast to depletable natural resources, management believes that timber resources can be managed on a sustainable basis to yield a predictable and stable volume of timber over an indefinite period of time. |
| Along with food, water and ammunition, power is a depletable resource for soldiers in the field. |
| A fossil resource is a depletable or non-renewable resource whose creation requires far longer than human lifespan. |
| This depletable resource needs to be protected. |
| Depletable Material Resources: Reduce the use of depletable and non-renewable resources. |
