PRESS RELEASE
ECOPETROL AND PACIFIC RUBIALES ANNOUNCE AGREEMENT TO START THE PILOT PROJECT OF THE STAR TECHNOLOGY
Bogotá, Thursday, March 31, 2011 – Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC; BVL: EC; TSX: ECP) and Pacific Rubiales Energy Corp. (BVC: PREC; TSX: PRE) announced today that they have agreed to carry out a pilot project of the “STAR”(Synchronized Thermal Additional Recovery) technology, provided by Pacific Rubiales, in the Quifa field in the Llanos Orientales in Colombia.
The two companies, after a period of studies and tests in the research laboratories at the University of Calgary, have reached the conclusion that the implementation of in-situ combustion based technologies, such as “STAR”, is one of the best options to increase the recovery factor in the heavy oil fields of Colombia.
Considering the above, the two companies acknowledge the importance of starting as soon as possible a pilot project under field conditions. This pilot project will be carried out in the Quifa field, under the terms, conditions and obligations established in the existing Quifa Association Contract between the two companies.
The reservoir characteristics in the Quifa field are similar to those of the neighbouring Rubiales field. The companies agree that the technology could be extended to the Rubiales field, provided that both the pilot project in Quifa is judged to be successful, and the two parties reach satisfactory commercial terms in addition to all the aspects necessary to its commercial application in the Rubiales field.
The STAR pilot project in Quifa aims to test the efficiency of the technology, to fine-tune the necessary operational parameters, and to establish the increase in the recovery factor that will lead to the commercial implementation of the technology.
As part of this agreement, the two companies will proceed in the shortest possible time, to the definition of the required parameters for the implementation of the pilot project, as well as the basis for the following phases, including: