What is the treatment of land purchase price in calculating depletion for natural resources?

The purchase price of land is considered part of the total costs when calculating depletion for natural resources. This is because depletion represents the allocation of the cost of extracting natural resources over the productive life of those resources.

When acquiring a natural resource, all costs directly associated with the acquisition of that resource must be capitalized to the depletion base. This includes the purchase price of the land, as it is necessary for the extraction process. By adding the land purchase price to total costs, the overall value that needs to be depleted is accurately represented. Depletion is then calculated based on this accumulated total.

In this context, the other options would not accurately reflect the nature of how depletion is determined. Subtracting or recording land as a separate asset would not appropriately account for the costs associated with resource extraction and could understate the depletion calculation, misleading financial reporting. Not accounting for the land's purchase price would also result in an incomplete base on which to compute depletion, ultimately affecting the financial statements negatively.