Depletion

Important Reminders

Marginal production of oil and gas.

The suspension of the taxable income limit on percentage depletion from the marginal production of oil and natural gas has been extended to tax years beginning after 1999 and before 2002. For more information on marginal production, see section 613A(c) of the Internal Revenue Code.

Alternative minimum tax.

Individuals, corporations, estates, and trusts who claim depletion deductions may be liable for alternative minimum tax.

For more information on alternative minimum tax, see the following sources.

If you are:	See:
An individual	The instructions for Form 6251, Alternative Minimum Tax—Individuals.
A corporation	Form 4626, Alternative Minimum Tax—Corporations.
An estate or trust	Form 1041, U.S. Income Tax Return for Estates and Trusts, and its instructions.

Introduction

Depletion is the using up of natural resources by mining, quarrying, drilling, or felling. The depletion deduction allows an owner or operator to account for the reduction of a product's reserves.

There are two ways of figuring depletion: cost depletion and percentage depletion. For mineral property, you generally must use the method that gives you the larger deduction; for standing timber, you must use cost depletion.

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