BUENOS AIRES, June 7 (Reuters) - Drilling has started at the major offshore Fenix gas field in Argentina, the largest natural gas field being currently developed off the South American country's coast, one of the operators Wintershall Dea said on Friday.

Wintershall Dea operates the field, located around 60 kilometers (37.28 miles) off the coast of Tierra del Fuego, along with its partners Total Austral, a subsidiary of TotalEnergies, and Pan American Energy.

"We are delighted to commence the next stage in the development of Fenix," said Manfred Boeckmann, Managing Director of Wintershall Dea Argentina, in a statement.

"We are well on track to bring this key energy project into production in Q4 this year."

The $700 million project is expected to produce some 10 million cubic meters of natural gas per day and be a major part of Argentina's domestic energy matrix.

The production platform on the field will connect three wells which will be "drilled, completed and put on production" in the next few months, the statement added.

TotalEnergies has a 37.5% stake in the Fenix project, which it operates together with Wintershall Dea, also with 37.5%, and Pan American Energy with 25%.

Argentina's cash-strapped government is trying to overturn a deep fiscal deficit, including by boosting energy production in its Patagonian Vaca Muerta shale region and with increased output offshore. It wants to become a net energy exporter.

(Reporting by Eliana Raszewski, writing by Valentine Hilaire and Stéphanie Hamel; Editing by Gabriel Araujo)