Alaska Stat. § 46.03.759
(a) A person who is found to be liable under any other state law for an unpermitted discharge of crude oil in excess of 18,000 gallons is, in addition to liability for any other penalties or for damages or the cost of containment and cleanup, liable to the state in a civil action for a civil penalty, up to a maximum of $500,000,000, in the amount of
(c) Subject to the $500,000,000 maximum set under (a) of this section the court shall assess four times the penalty set out in (a) of this section if the court finds
(f) A person otherwise liable for penalties under this section is not liable if the person demonstrates, by a preponderance of the evidence, that the discharge occurred solely as a result of