The Italian major bested eight large and small rivals with an offer of an 83% profit share to the state and a 33% increase in investment.

Argentina consortium Pan American Energy and E&P Hidrocarburos y Servicios came out on top in a five-way scramble for Block 2, proposing a state profit share of 70% and a 100% increase in investment.

Block 4 went uncontested to a consortium of US player Fieldwood Energy and Mexican start-up Petrobal, with an apparent high bid granting the state a profit share of 74%.

Blocks