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PetroMagdalena announces exploration update
PetroMagdalena Energy Corp. (TSXV: PMD), a company focused on oil and gas exploration and production in Colombia, today announced an update on its ongoing exploration program.

Brownstone Energy Provides Colombian Operational Update On Canaguay-1 Work-Over And Drilling Of Mani-1 Well, Colombia
Brownstone Energy Inc. (TSXV: BWN; OTCQX: BWSOF) (“Brownstone”) is pleased to provide the following update on its operations in Colombia.

PetroMagdalena announces 86% increase in 2P reserves at Cubiro
PetroMagdalena Energy Corp. (TSXV: PMD) announced today that it has received an independent reserves evaluation report dated September 30, 2011 (the "Petrotech Report") prepared by Petrotech Engineering Ltd. of Burnaby, British Columbia, relating to the current reserve base in Cubiro, the Company's oil and gas exploration and production property located in the Llanos Basin of Colombia. The combined proved plus probable ("2P") reserves for this block (gross to the Company) increased by 5.0 million barrels of oil ("MMbbls"), or 86%, compared to those reported in December 2010. The Company's gross (before royalties) 2P reserves at Cubiro at September 30, 2011 amount to 10.8 MMbbls, having a total net present value ("NPV") (10% discount, before tax) of US$263 million, an increase of US$126 million since December 2010. The Report also reflects a 73% increase in gross proven reserves ("1P") to a total of 3.0 MMbbls.

PetroMagdalena Announces Copa A Sur-1 Light Oil Discovery
PetroMagdalena Energy Corp. (TSXV: PMD.V) is pleased to announce it has discovered a new light oilfield with the Copa A Sur-1 ("Copa AS-1") exploration well, located at short distances to the north and south of the Copa AS-1 well. A workover rig is currently at the location and the testing and completion program has begun, the results of which will be provided upon conclusion.

Ecopetrol completes five discoveries in Caño Sur
Ecopetrol informs that it proved hydrocarbon accumulation in the exploratory well Trasgo-1, in the western block of the Caño Sur exploration and exploitation contract.

Brownstone Energy Provides Update On Operations In Colombia
Brownstone Energy Inc. (TSXV: BWN; OTCQX: BWSOF) (“Brownstone”) is pleased to provide the following update on its operations in Colombia.

Canacol Awarded Contract for Associated Gas and Gas Liquids from the Rancho Hermoso Field in Colombia
Canacol Energy Ltd. (“Canacol” or the “Corporation”) (TSX:CNE) (BVC:CNEC) is pleased to announce that Canacol Energy Colombia S.A., a subsidiary of the Corporation, has been awarded a contract by Ecopetrol S.A. for a 100% working interest in the associated gas and gas liquids stream from the Rancho Hermoso Field, located in the Llanos Basin of Colombia.

Foster Wheeler Gears up for Second Phase of the Barrancabermeja Refinery Modernization Project
Foster Wheeler (NASDAQ: FWLT) today announced that its Global Engineering and Construction Group has been released to perform the second phase scope for an existing contract with Ecopetrol S.A. for the Project for the Modernization of the Refinery in Barrancabermeja (PMRB) in Colombia. This release includes additional project management consultancy (PMC) and front end engineering design (FEED), detailed engineering for the crude unit revamps, assisting Ecopetrol in the selection process for engineering, procurement and construction (EPC) contracts, and control and supervision of the EPC and construction contractors.

Petrominerales Announces Closing Of Strategic Acquisition Of Interest In Colombia's Ocensa Pipeline
Petrominerales Ltd. ("Petrominerales" or the "Company") (TSX:PMG) is pleased to announce that we, through a wholly-owned subsidiary, have closed our previously announced acquisition of a five percent interest in the Oleoducto Central S.A. ("Ocensa") crude oil pipeline from Total E&P Holdings, for a purchase price of US$281 million.

PETROMINERALES PROVIDES EXPLORATION UPDATE
Petrominerales Ltd. ("Petrominerales" or the "Company") (TSX:PMG) is pleased to provide the following exploration update.