Brief Fact Summary.
Plaintiff, the State of NH sued several gasoline suppliers and chemical manufacturers for causing groundwater contamination. Defendant was one of those companies.
Synopsis of Rule of Law.
Under market share liability, the burden of identification shifts to the defendants if the plaintiff establishes a prima facie case on every element of the claim except for identification of the actual tortfeasors. Each defendant would be severally liable for the portion of the judgment that represents its share of the market at the time of the injury.
Generally, the failure to do so bars a party from raising such claims on appeal.
View Full Point of LawIn 2003, plaintiff the State of NH sued several gasoline suppliers, refiners, and chemical manufacturers. Plaintiff argued that these companies included an additive in their gasoline, which caused extensive groundwater contamination. Plaintiff could not trace the additive back to the company that caused the contamination, but argued that all the companies should be held liable according to their market share of products containing MTBE. Since Exxon’s market share for gasoline in NH was around 30%, the jury found a verdict against Exxon for approximately $236 million of the damages based on its market share.
Issue.
Was trial court correct in using the market share liability theory?
Discussion.
The Court first explained that the purpose of creating the theory of market share liability was to hold businesses accountable to consumers where the traditional standard of negligence is insufficient to determine causation in an era of mass production and complex marketing methods.
The Court noted 6 factors from Restatement (Third) of Torts in examining whether market share liability applies and determined that it should be applied in this case.
The Court explained that under market share liability, the burden of identification shifts to the defendants if the plaintiff establishes a prima facie case on every element of the claim except for identification of the actual tortfeasors. Once these elements are established, each defendant is severally liable for the portion of the judgment that represents its share of the market at the time of the injury.