Exxon must pay $14.25 million over Baytown air pollution as Supreme Court declines appeal

The U.S. Supreme Court let stand a $14.25 million penalty against ExxonMobil for more than 16,000 Clean Air Act violations at its Baytown, Texas, petrochemical plant.

Kyle McClenagan reports for Houston Public Media.


In short:

  • The Supreme Court’s refusal to hear ExxonMobil’s appeal leaves intact a ruling from the 5th Circuit Court of Appeals, which upheld the $14.25 million civil penalty for pollution at the Baytown facility from 2005 to 2013.
  • The lawsuit was filed in 2010 by Environment Texas and the Sierra Club, representing local residents exposed to over 10 million pounds of air pollutants, including carcinogens and ozone-forming chemicals.
  • Plaintiffs say this is the largest penalty ever awarded in a citizen-led Clean Air Act case and argue it reinforces the public's right to hold polluters accountable in federal court.

Key quote:

"It's been a hard-fought battle for 16 years, and the citizens stuck it out all the way, and justice has prevailed."

— David Nicholas, attorney for the plaintiffs

Why this matters:

Petrochemical plants like Exxon’s Baytown complex emit volatile organic compounds, nitrogen oxides, and other hazardous air pollutants that can harm human health and the environment. These emissions contribute to smog formation, respiratory illnesses, and long-term cancer risks for nearby communities. Baytown sits in a heavily industrial corridor east of Houston, where residents — often lower-income and people of color — live in close proximity to refineries and chemical facilities. Chronic exposure to air pollution in these areas has been linked to higher rates of asthma, cardiovascular disease, and premature death. When enforcement of environmental laws fails or is delayed, the burden of pollution falls on those least able to avoid or address it, deepening environmental injustice.

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