An effect may be given to an allocation of a (depletion deduction).Logical formLearned from2 sentences. Timber may be aggregated into a (depletion block).Logical formLearned from2 sentences. A claim can be for a (depletion deduction).Logical formLearned from2 sentences. (Cost depletion) may yield a deduction.Logical formLearned from2 sentences. A depletion may be based on a percentage of gross income.Logical formLearned from2 sentences. A basis of a property may be reduced by an amount of depletion.Logical formLearned from2 sentences. An example may cover depletion.Logical formLearned from2 sentences. Depletion may use estimates.Logical formLearned from2 sentences. A revision may affect a (depletion calculation).Logical formLearned from2 sentences. Units may be used in a (depletion calculation).Logical formLearned from2 sentences. A method may be used for a calculation of depletion.Logical formLearned from2 sentences. Depletion may undergo a calculation.Logical formLearned from2 sentences. Some forms of depletion may be allowed.Logical formLearned from2 sentences. Depletion can be a form of (cost recovery).Logical formLearned from2 sentences. Purposes can be constituted-of-or-filled-with (percentage depletion).Logical formLearned from2 sentences.