Gran Tierra completes Costayaco-4 well in Colombia

June 17, 2008
Gran Tierra Energy Inc. has completed drilling the Costayaco-4 well in Costayaco field on Colombia's Chaza block. The well reached 8,884 ft TMD.

Eric Watkins
Senior Correspondent

LOS ANGELES, June 17 -- Gran Tierra Energy Inc. has completed drilling the Costayaco-4 well in Costayaco field on Colombia's Chaza block. The well reached 8,884 ft TMD.

Gran Tierra said log interpretations from data acquired after drilling indicate about 16 ft of potential hydrocarbon pay in the Kg sand unit of the Rumiyaco formation, 14 ft in the U sandstone unit of the Villeta formation, 38 ft in the T sandstone unit of the Villeta formation, and 125 ft in the Caballos formation.

"Significant progress is being made on defining production infrastructure requirements, advancing production capacity and setting new production targets for the field," said Dana Coffield, Gran Tierra president and chief executive officer.

In April, Gran Tierra completed the testing of its Costayaco-3 well, the third well drilled in Costayaco field, discovered in 2007.

Gran Tierra has a 50% interest and is operator on the Chaza block, with Solana Resources holding the remaining 50% interest.

Contact Eric Watkins at [email protected].