The Houston-based giant had been looking for a partner for more than a year at Melmar, which the operator believes could hold a resource of between 2 billion and 4 billion barrels of oil equivalent.
Drilling kicked off last month in Alaminos Canyon Block 475 with drillship Maersk Valiant.
Hess said the farm-in deal was finalised after about a year and a half of talks.
"The
