In early February 2018, Cobalt International Energy farmed out of Green Canyon contiguous leases GC 675 and GC 676, in which the company had previously held 19.5%. The transactions are effective as of 1 May 2017. GC 767 lies 4km due-north from the 2017 new-field wildcat G35679 1, targeting the Gator Lake prospect. The Lower Tertiary well was spudded on 8 May 2017, utilising the "Discoverer Clear Leader" drillship and had a permitted depth of ~10,670m. Chevron originally anticipated that it would take 170 days to drill the well. The drillship moved off location by late August 2017. The Gator Lake prospect had a pre-drill resource estimate pegged at between 400-500 MMboe. The results from this well are not yet known. Following completion of the transactions, equity in the southern halves of GC 675 and GC 676 is now shared between Chevron USA (50% WI + Op), Shell Offshore (25%) and Total E&P USA (25%). Equity in the northern halves of both leases remains unchanged: Chevron USA (30% WI + Op), Cobalt International Energy (19.5%), Total E&P USA (13%), Venari Offshore (12.5%) and Shell Offshore (25%).
Cobalt International Energy farmed out of Green Canyon contiguous leases GC 675 and GC 676, in which the company had previously held 19.5%.