Luis Yanza, campaigner who battled big oil in the Amazon rainforest

Oil development in Ecuador’s Amazon left widespread contamination, prompting a decades-long legal case testing whether affected communities could hold a multinational company to account.
Luis Yanza organized plaintiffs across remote regions, sustaining a coalition of more than 80 villages while legal proceedings moved between Texaco (later Chevron) and courts in the United States and Ecuador.
Working with Pablo Fajardo, he helped build claims around environmental damage and public health, contributing to a 2012 Ecuadorian judgment ordering billions in damages, though enforcement remains unresolved.
Awarded the Goldman Environmental Prize in 2008, Yanza spent his life sustaining a campaign that brought global attention to the case, even as the underlying dispute over responsibility and cleanup continued.

For much of the late 20th century, oil development in the Ecuadorian Amazon proceeded with little restraint. Wastewater and drilling residues were discharged into rivers or left in open pits. Forest was cleared. Communities downstream relied on contaminated water for drinking, cooking, and bathing. Over time, residents reported rising rates of illness, including cancers and respiratory disease. People might argue about the scale of the contamination, but no one could argue that it wasn’t visible. By the early 1990s, the region had become a test of whether affected communities could use the law to hold a multinational oil company to account.

That effort took shape as a long legal battle against Texaco, later acquired by Chevron. It moved between jurisdictions, from New York to Ecuador, and drew in tens of thousands of plaintiffs from Indigenous and settler communities. The case would last decades. It required organizing across remote territories, gathering testimony and evidence, and sustaining attention in a legal process designed to exhaust both.

Luis Yanza was central to that work. He died on March 27th 2026, from cancer, after years spent in the same landscapes where contamination was alleged to have taken hold. His role was not primarily in courtrooms. While lawyers argued motions and judges weighed jurisdiction, he traveled the back roads and rivers of the northern Amazon, meeting communities, explaining the case, and maintaining a coalition that spanned more than 80 villages and several Indigenous peoples.

Yanza grew up in Lago Agrio, a town shaped by oil. He excelled at school but lacked the means to continue his studies. He briefly enrolled in Quito, hoping a scholarship might appear, then returned home when it did not. An industrial accident cost him part of a finger. The interruption did not end his education. Those who worked with him later described a sharp, self-directed intelligence and an ability to move between worlds that did not often meet: Indigenous communities, farmer settlements, and legal teams from abroad.

As president of the Frente de Defensa de la Amazonia, the organization that brought the case, he became the main link between plaintiffs and the broader campaign. He worked alongside Pablo Fajardo, a lawyer from the same region, to assemble claims that ranged from environmental remediation to public health monitoring. They documented hundreds of sites and argued that billions of gallons of contaminated water had been released into the environment. The company acknowledged some practices but disputed responsibility for harm.

The legal path was protracted. A case filed in the United States in 1993 was later moved to Ecuador. Field inspections multiplied. Experts assessed damages. In 2012 an Ecuadorian appeals court upheld a judgment ordering Chevron to pay billions of dollars. The company refused, contesting the ruling in multiple jurisdictions. Enforcement remains unresolved. For many communities, the question of cleanup is still open.

Yanza’s work carried risks. He and his colleagues received threats, and international bodies issued precautionary measures for their protection. The campaign also reshaped national debate. It drew attention to oil’s long-term effects and contributed to stronger environmental rules in Ecuador. It made the Amazon case a matter of public discussion, not only a legal dispute.

In 2008 he and Fajardo were awarded the Goldman Environmental Prize. The recognition brought international visibility, though it did not alter the underlying conflict. Yanza continued to travel, organize, and speak on behalf of communities that had little access to formal power.

He was also, by many accounts, exposed for years to the same conditions at issue in the case. Colleagues noted his repeated visits to contaminated sites and the vapors that rose from open pits in the heat. Illness was common in the region; many residents reported similar symptoms.

The lawsuit never reached a neat conclusion. But it did establish a record: of contamination and a long dispute over who should answer for it, of distant communities brought together across a fragmented landscape, and of a struggle that refused to disappear. Yanza spent his life maintaining that effort. It did not end with him.