The Commonwealth of Pennsylvania v. Exxon Mobil Corporation

Background

This action is part of multidistrict litigation involving alleged groundwater contamination from defendants’ use of methyl tertiary butyl ether (MTBE), a gasoline additive, and tertiary butyl alcohol, a substance formed when MTBE breaks down in water. Pennsylvania alleges that defendants’ use and handling of MTBE contaminated, or threatened to contaminate, groundwater within Pennsylvania’s jurisdiction.

The case was transferred from the federal court in Pennsylvania to the Southern District of New York as part of the multidistrict litigation. Pennsylvania previously asked Judge Broderick to recommend returning the case to the originating court, but he denied that request in 2019. Pennsylvania filed a second motion on January 18, 2023, asking for the same recommendation.

Legal standard

The Judicial Panel on Multidistrict Litigation has the ultimate authority to return a case to the court where it began. A transferee judge—the judge handling the case in the multidistrict proceedings—may recommend that the panel do so. Because this case was not ready for trial, Judge Broderick explained that Pennsylvania had to show good cause for an early return and carried the burden of doing so.

The court considered whether keeping the case in the multidistrict proceedings would promote efficient handling of the remaining pretrial work. The court noted that summary judgment is part of pretrial proceedings and that a case-specific nature of some future work does not automatically require an early return.

Pennsylvania’s arguments

Pennsylvania argued that circumstances had changed since the 2019 decision because the parties had completed scheduled fact and expert discovery and the court had resolved several pending motions. Pennsylvania contended that returning the case would now promote judicial efficiency.

The defendants opposed the motion on behalf of all defendants. The parties agreed that the case was not ready for trial because additional discovery would likely be needed before focus sites could proceed to bellwether trials, and additional summary-judgment motions could still be filed.

Court’s analysis

Judge Broderick found that the case’s progress did not establish good cause for early return. First, the court had resolved several motions, but the parties could still file additional summary-judgment motions. Judge Broderick concluded that it would be more efficient for him to decide those motions because of his familiarity with the multidistrict litigation. He also rejected the argument that Pennsylvania-specific issues required the case to be returned immediately, explaining that many claims involved common-law issues that could still inform other cases in the coordinated proceedings.

Second, the completion of scheduled discovery did not make early return appropriate. Pennsylvania acknowledged that additional Pennsylvania-focused discovery would likely be needed before trial. The court had supervised discovery in the remaining consolidated matters and found no persuasive reason to treat this case differently.

The court also rejected Pennsylvania’s argument that the case should be returned because the court had not yet decided how the case would participate in bellwether trials. Judge Broderick described the practice in this multidistrict litigation as preparing focus sites for trial—including resolving summary-judgment motions and completing additional discovery—before returning trial-ready cases for trial.

Disposition

The court held that Pennsylvania failed to meet its burden to show good cause for a recommendation of remand. Pennsylvania’s motion was DENIED, and Judge Broderick declined to suggest that the Judicial Panel on Multidistrict Litigation return the action to the federal court in Pennsylvania at that time. The parties were directed to submit any additional summary-judgment motions by January 6, 2025, and the clerk was directed to terminate the motion at docket entry 904.