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WASHINGTON (CBSDFW.COM/AP) — The Supreme Court will not hear North Texas-based Exxon Mobil’s appeal of a $236 million judgment for its use of a gasoline additive that contaminated groundwater in New Hampshire.

The court’s order Monday leaves in place a jury verdict involving contamination by the chemical MTBE.

Exxon Mobil wanted the judgment thrown out because New Hampshire was not required to prove that individual water supplies were contaminated. The Irving-based company also said it is not responsible for contamination caused by gasoline spills at junk yards and independent gas stations.

MTBE, or methyl tertiary butyl ether, is a petroleum-based gasoline additive that has been used since the 1970s to reduce smog-causing emissions.

It was found in the 1990s to contaminate drinking water supplies when gasoline is spilled or leaks into surface or groundwater.

In other Exxon Mobil news, today Texas Attorney General Ken Paxton joined five other states in asking a court to end an investigation launched against Exxon Mobil by the Attorney General of the Virgin Islands.

The Virgin Islands official alleges the company has engaged in racketeering due to its stated position on climate change.” Paxton says, “It’s a fishing expedition of the worst kind, and represents an effort to punish Exxon for daring to hold an opinion on climate change that differs from that of radical environmentalists.”

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