Gran Tierra Energy, Inc. announced drilling update for its operations in Colombia and Brazil. The company has been maturing its exploration portfolio in Peru, with the intent to establish an exploration program that is capable of substantial growth for years to come, above and beyond recent success at the Bretaña field. The company completed initial testing of the Moqueta-12 delineation well on the southern flank of the Moqueta field by collecting reservoir data and fluid samples with a hydraulic jet pump from the T Sandstone and Caballos formations.

The T Sandstone formation was perforated and tested from 5,556 feet to 5,695 feet measured depth at an average rate of 780 barrels of oil per day of 27deg API oil with a 0.3% water cut. The underlying Caballos formation was perforated and tested from 5,831 feet to 6,146 feet MD at an average rate of 476 BOPD of 26.3deg API oil with a 0.3% water cut. The Moqueta-12 bottom hole location is approximately 1,300 feet east of Moqueta-11 and the lowest interpreted oil pay is approximately 150 feet lower than the previously lowest known oil encountered at Moqueta-11.