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In a courtroom thunderclap that reverberated across the Gulf Coast and beyond, a Louisiana jury ordered Chevron to shell out nearly $745 million for environmental destruction tied to decades of oil drilling that shredded southeast Louisiana’s fragile coastal wetlands.

After over a decade of legal wrangling, the long-awaited verdict dropped Friday, marking a pivotal win for Plaquemines Parish, which launched its case in 2013 — the first of many suits targeting Big Oil for turning Louisiana's marshes into watery graveyards of industry neglect.

The jury, after just four hours of deliberation, ruled that Texaco, now a Chevron subsidiary, violated Louisiana law by failing to remediate damage from oil operations that dumped billions of gallons of toxic wastewater and left wetlands permanently scarred.

Billions Sought, Hundreds Awarded — And the Legal Fireworks Aren’t Over

While the parish aimed for a towering $2.6 billion, jurors awarded:

• $575 million for lost land,

• $161 million for contamination,

• $8 million for abandoned infrastructure.

This case is the opening salvo in what could become a deluge of similar litigation. Parishes including Jefferson, Cameron, Vermilion, St. Bernard, and St. John the Baptist have filed their own suits citing similar environmental harm from drilling, dredging, and disposal practices dating back to World War II.

Chevron Fires Back: “We’re Not the Villain”

Chevron’s legal team, led by Mike Phillips of Kean Miller LLP, quickly announced plans to appeal, condemning what it called “numerous legal errors that led to this unjust result.”

“Chevron is not the cause of the land loss occurring in Breton Sound,” said Phillips, arguing that the Louisiana State and Local Coastal Resources Management Act, the law under which the verdict was rendered, doesn’t apply retroactively to activities from decades past — long before the law was enacted in 1980.

Industry Titans Sound the Alarm: A Verdict That Could Shake the Economy

The Louisiana Mid-Continent Oil & Gas Association issued a stark warning: the verdict sets a dangerous precedent that could chill investment and undermine Louisiana’s economic future.

“Louisiana cannot prosper in its current litigious climate,” the association said in a fiery statement. “This verdict hands lawyers a payday and tells global investors Louisiana is closed for business.”

The Louisiana Association of Business and Industry echoed the sentiment, with CEO Will Green lamenting what he called a blow to an industry that supports over 250,000 jobs and funnels billions annually into the state economy — including coastal restoration.

“These baseless lawsuits jeopardize one of our state’s most vital industries,” Green warned, accusing trial lawyers of exploiting the courts while Louisiana families and workers bear the fallout. “Instead of collaboration, this ruling opens the floodgates to more frivolous litigation that could unravel our economic foundation.”

An Oil Giant at the Crosshairs of History

The lawsuit painted a damning portrait of Chevron’s environmental footprint in the region, with attorneys for the parish arguing the oil titan left behind a trail of devastation — carving canals through delicate marshlands and dumping waste unchecked.

Though Chevron insists it's being unfairly punished for outdated operations, the ruling could signal a paradigm shift in how energy companies are held accountable for long-term ecological damage.

What Comes Next: Appeal on the Horizon

Chevron's battle is far from over. An appeal is imminent, and other parishes are poised to follow Plaquemines’ lead. The precedent set by this case could ripple through Louisiana’s courtrooms for years to come.

John Carmouche of Talbot Carmouche & Marcello represented the parish, while Michael R. Phillips of Kean Miller LLP defended Chevron.

The case, filed in Louisiana’s 25th Judicial District Court, may have been a local matter on paper — but its consequences could reshape the legal and economic landscape of an entire state.

As the legal tide rises, Chevron and the rest of the oil industry may find themselves in deeper waters than ever before.