2017 was a comeback year for the region as reforms won over investors, exploration hotspots got hotter, and operators got bolder and more confident. Our map-based insight answers the year's most pressing questions. In Brazil, ExxonMobil and BP made their long-awaited debuts in the pre-salt, but just how much did the Majors tack on in this year's rounds? Guyana's Liza drew global attention – who else is picking up acreage in the area? Mexico continued a successful licensing round streak; what rewards did the country reap from its energy reform this year? Action picked up in Argentina's shale play – how committed are operators to Vaca Muerta? Ecuador finally shifts away from service contracts, but will it be enough to incentivize exploration? And finally, Colombia and Trinidad gas exploration plowed on - but how do regional gas markets look for these countries?