Phoenix Secures 35-Year Vaca Muerta Concession in Rio Negro

Phoenix Global Resources secured a 35-year exploitation concession for the Confluencia area in Argentina's Río Negro province, ending decades of exploration and beginning commercial development in the Vaca Muerta shale formation. The project involves an initial investment of 494.4 million dollars over the first five years, according to reporting by lacapitalmdp.com. The decision was communicated by the provincial government on October 9, 2026, through Decree 917/26, which approved the commercial viability of the project along with the non-conventional exploitation concession spanning 35 years.

Concession terms and area unitalization

The Río Negro provincial government granted the 35-year exploitation concession after unifiying the Confluencia Norte and Confluencia Sur blocks into a single 272.2-square-kilometer zone named the Confluencia area, lacapitalmdp.com reported. Specifically, the unified area comprises 272.22 square kilometers. During the preceding exploratory phase, Phoenix executed investments totaling approximately 123 million dollars, compared to an original commitment near 90 million dollars, drilling three horizontal wells in Confluencia Norte and four in Confluencia Sur alongside subsurface studies. Those exploratory results demonstrated the geological continuity of the shale deposit across both blocks and triggered the transition into commercial development. The decision marks the closure of the exploratory stage and the beginning of a new phase of productive development in the unified area, located over the Vaca Muerta formation, the provincial executive indicated in a statement.

Investment and Drilling Plans Approved

Phoenix operates under the control of Swiss firm Mercuria, with minority participation from Integra Capital, led by Argentine businessman José Luis Manzano. The company plans an immediate pilot program comprising two horizontal wells with an investment of 13 million dollars. For the first five-year exploitation period spanning from 2027 to 2031, the approved plan requires the drilling and completion of 40 horizontal wells alongside the construction of a dedicated treatment facility, requiring 494.4 million dollars in capital expenditures, according to lacapitalmdp.com. The development of the wells and the Confluencia Treatment Plant make up the exploitation program for this first five-year period.

Regional Significance of Vaca Muerta Reserve

Vaca Muerta ranks as the second-largest non-conventional gas reserve and the fourth-largest tight oil reserve worldwide. While the formation centers primarily in Neuquén province, it extends into Río Negro, Mendoza, and La Pampa. Broadening its footprint in the region, Mercuria and American oil producer Continental Resources announced an alliance in August to consolidate activities in Vaca Muerta, an agreement that includes Continental acquiring a 50 percent stake in Phoenix Resources.

Environmental compliance and financial requirements

The company must pay 5.05 million dollars for the commerciality bonus and 650,000 dollars for infrastructure. A contribution of 1.3 million dollars for corporate social responsibility is also planned. Each project must previously possess environmental impact studies, with requirements including waste management, soil, water, and air monitoring, aquifer control, and treatment of production water.

Open questions regarding full long-term capital deployment

While the initial five-year commitment of 494.4 million dollars is formally approved and mandated by provincial decree, the realization of the broader 3 billion dollar, 205-well long-term framework remains dependent on future market conditions, financing availability, and sustained production results from the upcoming pilot wells.