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TORONTO, ONTARIO--(Marketwire - June 7, 2010) - Brownstone Ventures Inc. (TSX VENTURE:BWN) ("Brownstone") is pleased to announce that the Company, along with its partners, including Quetzal Energy Ltd. (TSX VENTURE:QEI) as operator, has commenced drilling the Canaguay # 1 well on the Canaguaro Block in the Llanos Basin, Colombia. The well has a planned total depth of 16,000 feet and drilling is expected to take approximately 75 days. The well is programmed to test the hydrocarbon potential of several reservoirs including the Carbonera, Mirador, Gacheta, and Une. Brownstone has a 25% working interest in the Canaguaro Block.

Brownstone also has been advised by Quetzal that the acquisition of 220 square kilometers of 3-D seismic data on Block LLA-27 in the Llanos Basin has been completed and the seismic data is currently in processing. It is expected that processing and interpretation of the LLA-27 3-D seismic will be completed in the third quarter of 2010. The seismic program on Block LLA-21 has been postponed until after the rainy season, and the Company is currently planning to complete the program by late 2010 to early 2011.

About Brownstone

Brownstone Ventures Inc. is a Canadian-based, energy focused investment company with equity interests and direct interests in oil and gas exploration projects, including working interests in almost 300,000 acres in the Piceance/Uinta Basins of Colorado and Utah; 295km² in the Assam/Arakan Basin, Northeast India; 253,000 acres in Rio Negro, Argentina; interests in several projects in Brazil; a 50% interest in approximately 300,000 hectares in the Quėbec Lowlands; a 15% participating interest in two off-shore Israel oil and gas blocks; and is earning interests (14-35%) in 4 Colombian blocks in the Llanos basin. For additional information, please see Brownstone's website: [ www.brownstoneventures.com ].

Forward Looking Statements – Certain information set forth in this news release may contain forward-looking statements that involve substantial known and unknown risks and uncertainties. These forward-looking statements are subject to numerous risks and uncertainties, certain of which are beyond the control of Brownstone, including, but not limited to the impact of general economic conditions, industry conditions, volatility of commodity prices, risks associated with oil and gas activities, currency fluctuations, dependence upon regulatory approvals, the availability of future financing and exploration risk. Readers are cautioned that the assumptions used in the preparation of such information, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.