Oil and gas firm Echo Energy said drilling had begun on the final well at its Fracción D asset, onshore Argentina, operated by Compañía General de Combustibles.
Echo said the final well, in the western area of the Fracción D licence, targets a Tobifera high identified on 2D data, and is to be drilled to a measured depth of approximately 1,514 metres by the Petreven H-2015 rig.
It is estimated to hold around 60million barrels of oil, with the Petreven H-205 rig being used for the operation.
Echo is carrying out a four well campaign in the region onshore Argentina in a joint venture with CGC.