April 09, 2026
An Oklahoma federal judge has rejected a bid by the state and several poultry companies to enter consent decrees in their two-decade-old dispute, finding the agreements did not go far enough to address pollution of the Illinois River Watershed.
January 14, 2026
A poultry producer found to have polluted waters in Oklahoma reached a settlement with the state Wednesday, agreeing to pay $5 million for remediation and conservation projects, according to Attorney General Gentner Drummond.
January 07, 2026
Tyson Foods and other poultry operators found responsible for polluting Oklahoma waters with chicken waste argued that, without a stay in the court's judgment pending a Tenth Circuit appeal, companies not subject to its orders will have an economic advantage.
December 22, 2025
A federal judge hit Tyson Foods, Cargill and other poultry companies with a permanent injunction nearly 16 years after trial for polluting Oklahoma waters with chicken waste, but imposed only a tiny fraction of the $100 million in penalties requested by the state.
August 08, 2025
The Arkansas Farm Bureau Federation and two cattle ranchers are urging a federal court in Oklahoma to reject the state's $103 million solution to end a long-running legal fight against poultry producers, including Tysons Foods Inc., for polluting the Illinois River Watershed, saying Oklahoma's proposed limits on fertilizer derived from chicken waste would violate Arkansas' sovereignty.
November 06, 2024
Tyson, Cargill and other poultry producers have not shown that an immediate appeal of an Oklahoma federal judge's plan to hash out remedies concerning a river pollution trial that took place over a decade ago would "materially advance the ultimate termination of the litigation," the judge ruled.
September 23, 2024
Tyson, Cargill and other poultry producers have urged an Oklahoma federal judge to certify their interlocutory appeal of a plan to hash out remedies concerning a river pollution trial that took place over a decade ago, arguing that the record is far too "stale" to support forward-looking relief now.
January 19, 2023
The state of Oklahoma has won an injunction against poultry processors, including Tyson and Cargill, that let their animals' waste choke a famously scenic river watershed with phosphorus, a judge ruled Wednesday, more than a decade after trial in the case, saying the pollution was a public nuisance.