# Environmental incidents and litigation in South America

> Live situation record from CLSTR: https://clstr.news/situations/environmental-incidents-and-litigation-in-south-america
> Updated: 2026-10-12T12:26:05.000Z. Sources: 6. Developments: 2.

Environmental incidents and legal challenges involving hydrocarbon activities have emerged in Argentina and Peru.

In Argentina, regulatory and judicial actions have targeted several companies. In Chubut, the provincial government inspected cleanup efforts following an oil spill by CAPSA at the Diadema deposit, which required soil removal and pipeline repairs. In Río Negro, Terminal de Servicios Portuarios Patagonia Norte S.A. was fined for unauthorized coastal filling activities. Additionally, a judge moved a case to oral trial against the owner and former executives of COMARSA regarding the accumulation of over 300,000 cubic meters of untreated petroleum waste in Neuquén.

In Peru, legal proceedings have advanced in Sechura, where a civil court admitted an injunction against Perupetro, Petroperú, and the Ministry of Energy and Mines. The lawsuit aims to halt bidding for oil lots Z-70 and Z-71, citing potential threats to the marine food chain, scallop banks, and the right to a healthy environment.

## Timeline

### 2026-10-12: Environmental legal actions advance against oil activities in Peru and Argentina

Legal actions regarding oil-related environmental risks are progressing in Peru, targeting Sechura Bay contracts, and in Argentina, with a trial set for COMARSA over Vaca Muerta waste accumulation.

3 sources. https://clstr.news/cluster/environmental-legal-actions-advance-against-oil-activities-in-peru-and-argentina

### 2026-10-09: Environmental incidents reported in Chubut and Río Negro

Environmental authorities in Argentina are addressing two separate incidents: a CAPSA oil spill cleanup in Chubut and a fine issued to Patagonia Norte for unauthorized coastal filling in Río Negro.

3 sources. https://clstr.news/cluster/environmental-incidents-reported-in-chubut-and-ro-negro

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Cite as: Environmental incidents and litigation in South America. CLSTR, https://clstr.news/situations/environmental-incidents-and-litigation-in-south-america
