Ecopetrol Builds on Cano Sur Success

Ecopetrol on Monday announced the initial test results of the CSE-8 ST1 exploratory well in the Puerto Gaitan jurisdiction, a municipality in the Meta Province, in areas belonging to the eastern block of the Exploration and Exploitation Cano Sur contract.

Production test to date show a stable average production of 532 barrels per day of API 13.8 grade oil, with water cut around 18.5%.

The exploratory well was designed with a deviated wellbore that allowed contact with a thicker net oil pay and a better location within the deposit. Drilling operations began on August 11, 2011 and reached an average depth of 4,594 feet in 7 days.

This new exploratory success brings to four the number of oil findings in Cano Sur Block during 2011, including Mito-1, Fauno-1 and Pinocho-1. This constitutes an important milestone in the exploration of this block, taking into account its importance for Ecopetrol's heavy crude oil growth strategy.

Results of initial tests show that this well has the highest productivity among the recently drilled wells in this region. Test were undertaken using an artificial lift system with an electric submersible pump.

This contract was signed in June 2005 with the National Hydrocarbon Agency (ANH, Agencia Nacional de Hidrocarburos). Ecopetrol is the sole operator and holder of 100% interests.

"Ecopetrol has identified a huge potential for heavy crude oil commercial production in the Llanos Basin. We are very pleased with this new discovery" said Ecopetrol's CEO Javier Gutierrez Pemberthy.

In the coming months, Ecopetrol will continue to evaluate production conditions and the performance of the deposit found, maintaining simultaneous exploratory efforts in the area of the Cano Sur Block in order to make a prompt commercial viability statement.


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