RE:upper tertiarywaitingstill ... to your question re Exxon Upper Tertiary hit like Joe. Note the similaries in their L-2 and our J-1, the sandstone source and the 190 feet vs 180 respectively.
The Liza-2 well was drilled by ExxonMobil affiliate Esso Exploration and Production Guyana Ltd., approximately 2 miles (3.3 km) from the Liza-1 well. The Liza-2 well encountered more than 190 feet (58 meters) of oil-bearing sandstone reservoirs in Upper Cretaceous formations. The well was drilled to 17,963 feet (5,475 meters) in 5,551 feet (1,692 meters) of water.
Source: News Source Guyana