Oromin Updates Santa Rosa Project

Santa Rosa Dome Prospect
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Oromin provided an update on the current status of and plans for its 100% owned Santa Rosa oil & gas concession in the Province of Mendoza, Argentina.

The Santa Rosa concession is a large mineral tenure comprising 7694 km2 situated over a geological dome structure centred 91 km east of the city of Mendoza. The Santa Rosa dome prospect is the only known major structure in the eastern region of the Cuyana Basin. The Cuyana Basin totals approximately 161,000 km2 and has hosted over 934 producing wells from 2440 total wells drilled. Initial recoverable reserves in 18 oil pools in the Tupungato and Cacheuta sub-basins - the northern portion of the Cuyana Basin - total 1.2 billion barrels. These reserves were found to the west and southwest of our Santa Rosa concession, and there are no known discoveries of commercial quantities of hydrocarbons on our concession.

In July 2009, Oromin drilled the well SREx-2001 on a postulated high point on the dome, and did not encounter hydrocarbons. However, information gained from the drilling of the 2009 well, from limited seismic work and from three prior regional wells drilled by other operators, suggests that Triassic sediments have been preserved to the south and southwest of the well location SREx-2001 and that these sediments provide opportunities for potential oil-bearing stratigraphic traps on the flanks of the dome.

Based on recommendations by its consultants, Oromin is seeking to farm out a portion of its interest in the concession to third parties, in consideration for their assuming 100% of the costs and risks of the next program. This proposed program includes additional two- and three-dimensional seismic work to better define the potential stratigraphic traps, followed by the drilling of one or more wells. The Company emphasizes that it is in the stage of marketing these proposed programs and does not have any agreements or confirmed expressions of interest in hand. An announcement will be made of the terms of any farm-in agreement or agreements, if and when such agreements may be reached.


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