La. R.S. 47:639

Whenever the title to any natural resources being severed from the soil or water is in dispute, or whenever the purchaser thereof or any person engaged in severing natural resources from the soil or water, or in the actual operation of oil or gas property, is withholding payments on account of litigation, or for any other reason, the purchaser of natural resources severed from the soil or water, or person actually engaged in severing such natural resources from the soil or water, or the actual operation of oil or gas properties, shall deduct from the gross amount thus held the amount of the tax herein levied, and remit the same to the collector.