A Jury Told Exxon to Pay $5 Billion for Poisoning Alaska. Nineteen Years Later, the Court Cut It by 90%

Just after midnight on 24 March 1989, the oil tanker Exxon Valdez ran aground on a well-charted reef in Prince William Sound, Alaska. Its hull tore open, and roughly 11 million gallons of crude oil (about 257,000 barrels) spilled into one of the most spectacular and untouched marine environments on Earth.

It was, at the time, the worst oil spill in American history. But the crash and the oil are not where the Exxon Valdez story turns most revealing. That comes afterward, in the courts, over the following nineteen years: a slow-motion lesson in how a penalty meant to punish a corporation can be worn down to a fraction of itself.

What the oil did

Prince William Sound is a maze of islands, fjords, and cold, teeming water. The oil spread across it and beyond, eventually coating an estimated 1,300 miles of coastline. It arrived just as the region’s wildlife was at its most vulnerable.

The toll was catastrophic and, in places, almost total. Best estimates put the death count at around 250,000 seabirds, some 2,800 sea otters, 300 harbour seals, 250 bald eagles, and roughly 22 killer whales, along with billions of salmon and herring eggs in the shallows. The local herring fishery, a pillar of the regional economy, collapsed a few years later and never truly recovered. Decades on, researchers digging into the shoreline still found pockets of Exxon Valdez oil, largely unchanged, sitting in the gravel.

The first bill: cleanup and settlement

Exxon spent enormous sums on the response: around $2 billion on the cleanup effort itself, a chaotic, only-partly-effective scramble to hose down beaches and rescue oiled animals.

Then came the legal settlement. In 1991, Exxon agreed to pay the state and federal governments about $900 million in civil damages, paid out over roughly a decade, plus a $125 million criminal resolution: a $25 million fine and $100 million in restitution. That money funded the long work of monitoring and restoring the Sound.

The penalty that shrank

The dramatic part was the punitive damages: the money meant not to compensate specific losses but to punish Exxon and deter the next company from cutting the same corners.

In 1994, an Anchorage jury weighed the recklessness that led to the disaster and ordered Exxon to pay $5 billion in punitive damages to the thousands of fishermen, natives, and others whose lives the spill had upended.

Exxon appealed. And appealed. Over the next fourteen years the figure came down in stages: an appeals court cut it to $4 billion, then set it at $4.5 billion, then reduced it to $2.5 billion. In 2008, nineteen years after the spill, the US Supreme Court capped punitive damages at roughly $507.5 million, about one-tenth of what the jury had ordered.

The reasoning matters, because it was not a favour to Exxon. The Court was deciding a question of maritime law, and it settled on a rule: in cases like this, punitive damages should not exceed the compensatory damages, roughly one to one. The compensatory figure was $507.5 million, so that became the ceiling. The justices wanted predictability across all maritime cases. What predictability meant in this one was that the largest punitive award in American history shrank by ninety percent.

Read that sequence again. A jury of citizens said $5 billion. By the time the case ended, one of the most profitable corporations on the planet paid closer to $500 million in punitive damages, for a disaster that killed a quarter of a million animals and gutted a regional economy. Many of the plaintiffs had died waiting.

The real lesson

The Exxon Valdez left two legacies. One is environmental: it forced genuine reform, including a US law requiring double hulls on tankers, and it remains the benchmark against which spills are still measured.

The other legacy is quieter and more corrosive. It’s the demonstration that when the damage is done and the case goes to court, time and legal firepower are on the side of the company. Punishment that looks fierce in a courtroom in 1994 can be a rounding error by 2008. The oil eventually washed off most of the rocks. The lesson about who really pays (and how little, and how late) never quite did.