Texas Natural Resources Code - NAT RES § 122.003. Responsibility in Tort

(a) Except as provided by Subsection (b), a person who takes possession of fluid oil and gas waste, produces from that waste a treated product generally considered in the oil and gas industry to be suitable for use in connection with the drilling for or production of oil or gas, and transfers the treated product to another person with the contractual understanding that the treated product will be used in connection with the drilling for or production of oil or gas is not liable in tort for a consequence of the subsequent use of that treated product by the person to whom the treated product is transferred or by another person.

(b) This section does not affect the liability of a person that treats fluid oil and gas waste for beneficial use in an action brought by a person for damages for personal injury, death, or property damage arising from exposure to fluid oil and gas waste or a treated product.