Provincial energy authorities and industry stakeholders have announced the launch of a major upstream leasing initiative in the Vaca Muerta shale formation, offering 15 exploration and production blocks in what officials describe as Argentina’s most significant shale acreage tender in more than ten years.

The new offering is expected to attract strong interest from international oil and gas companies seeking access to one of the world’s largest unconventional hydrocarbon resources. The tender spans strategic areas across the Neuquén Basin, with blocks targeting both oil-rich and gas-rich zones considered highly prospective for large-scale development.

Authorities said the initiative is designed to accelerate investment, expand production capacity, and reinforce Argentina’s position as a growing global energy supplier.

“Opening these blocks marks a pivotal step in strengthening long-term energy development and unlocking the next phase of growth in Vaca Muerta,” said a spokesperson involved in the leasing process. “The scale and quality of the acreage being offered provide a unique opportunity for operators looking to participate in a world-class shale play.”

The leasing round comes amid rising international demand for energy security and increased interest in Latin American upstream opportunities. Industry analysts expect competitive bidding from established regional producers as well as new market entrants seeking exposure to unconventional resources with export potential.

Vaca Muerta has become a cornerstone of Argentina’s energy strategy over the past decade, driving record production levels and supporting infrastructure investments including pipelines, processing facilities, and export terminals. The formation is widely regarded as one of the largest shale oil and shale gas reserves outside North America.

Officials indicated that the leasing framework will include investment commitments, environmental compliance requirements, and development timelines aimed at ensuring responsible and efficient resource development.

Bidding guidelines and technical data packages are expected to be released to qualified participants in the coming weeks, with awards anticipated later this year.

The new tender is projected to stimulate billions of dollars in future investment, generate employment across the energy supply chain, and strengthen Argentina’s ability to expand hydrocarbon exports to regional and international markets.

About Vaca Muerta

Vaca Muerta is one of the world’s largest unconventional shale formations and a central driver of Argentina’s oil and natural gas production growth. Located primarily in the Neuquén Basin, the formation has attracted substantial investment from domestic and international energy companies focused on long-term shale development.