GeoPark has completed its previously announced acquisition from Pluspetrol S.A. of a 100% operated working interest in the Loma Jarillosa Este and Puesto Silva Oeste blocks, located in the black oil window of Argentina’s Vaca Muerta formation in the Neuquén basin.
The Government of Neuquén Province has issued decrees formalizing the transaction — DECTO-2025-1226 for Loma Jarillosa Este and DECTO-2025-1270 for Puesto Silva Oeste — granting all required governmental and regulatory approvals. The transfer includes the formal execution of public deeds between GeoPark and Pluspetrol, finalizing the concession transfers and enabling GeoPark to assume full operatorship.
As part of the closing, GeoPark transferred a 5% working interest in the Puesto Silva Oeste block to Gas y Petróleo del Neuquén S.A. (GyP), which joins as a strategic partner in the development of the asset. The transaction represents total consideration of approximately $115 million.
The move expands GeoPark’s operated footprint in one of South America’s most active unconventional oil regions, where Vaca Muerta continues to attract international investment and large-scale development. The company said its teams are already mobilized to begin operational work across both blocks.
“This closing marks an important milestone for GeoPark as we officially become operators in Vaca Muerta,” said Felipe Bayón, CEO of GeoPark. “We thank the Government of Neuquén Province, Pluspetrol, and GyP for their trust and partnership throughout this process. Our teams are ready to deliver on our commitments and develop these assets with the operational and financial excellence, environmental stewardship, and social responsibility that define GeoPark.”
The company described the completion as a demonstration of its long-term commitment to Argentina and its strategy to grow production and reserves through disciplined investment and partnership with local stakeholders.