Once one of South America’s poorest countries, Guyana is now ranked among the world’s richest because of the vast petroleum wealth contained in its territorial waters. A swath of major oil discoveries in the offshore Stabroek Block by operator ExxonMobil, with partners Chevron and CNOOC, saw Guyana emerge as a major oil producer and exporter. There is considerable production growth ahead which will boost the economy and global oil supply. U.S. intervention in Venezuela, with President Nicolas Maduro captured during a daring night raid,…