Recent large oil finds in Namibia have increased industry appetite to chase similar geological play types in the under-explored offshore basins of Argentina, Uruguay & Brazil. YPF’s upcoming Argerich well (in partnership with EQNR & SHEL) in Argentina’s deepwater Colorado basin offers a key test of the South Atlantic conjugate margins. Whilst Argerich is undoubtedly a high risk well, its sheer prospective size and follow-on potential could transform YPF.