Oromin Explorations Ltd.
OTC Bulletin Board : OLEPF
TSX : OLE

Oromin Explorations Ltd.

July 28, 2009 09:30 ET

Oromin Explorations Ltd.: Santa Rosa, Argentina Update

VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 28, 2009) - Oromin Explorations Ltd. ("Oromin") (TSX:OLE)(OTCBB:OLEPF) through the Argentina subsidiary, Exploraciones Oromin S.A. ("Oromin") reports that on July 26, 2009, exploration well OLE.MD.SRE X-2001 reached a total depth of 1,270 metres in basement.

Initial electric logging and subsequent MRIL (magnetic resonance imaging) evaluation completed late July 27, 2009 confirms that the well has not encountered hydrocarbons. The results suggest that the target reservoir zones are not present at this crestal well location.

The interest holders of the Santa Rosa license (indirectly Oromin as to 67.52% and Australian Otto Energy Limited as to 32.48%) will now study the well data and incorporate this in a regional data base to determine whether potential stratigraphic traps on the western flank of the Santa Rosa dome warrant further investigation.

The well will be plugged and abandoned as a dry hole.

A National Instrument 51-101 compliant technical report on this prospect was filed on SEDAR on July 9, 2008 and is available at www.sedar.com.

Norman Haimila, Ph.D., petroleum consultant and Oromin's Country Manager, is the Company's "qualified evaluator" for the purposes of National Instrument 51-101 and has verified the data disclosed in this news release. Dr. Haimila is a member of the American Institute of Petroleum Geology and the American Association of Petroleum Geologists.

To find out more about Oromin Explorations Ltd., visit www.oromin.com.

On behalf of the Board of Directors of OROMIN EXPLORATIONS LTD.

Chet Idziszek, President

Cautionary Statement

This document contains "forward-looking statements" within the meaning of applicable Canadian securities regulations. All statements other than statements of historical fact herein, including, without limitation, statements regarding the potential for the discovery of hydrocarbon resources, and our exploration plans and our other future plans and objectives, are forward-looking statements that involve various risks and uncertainties. Such forward-looking statements include, without limitation, estimates of exploration investment and the scope of exploration programs. There can be no assurance that such statements will prove to be accurate, and future events and actual results could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from our expectations are disclosed in the Company's documents filed from time to time via SEDAR with the Canadian regulatory agencies to whose policies we are bound. Forward-looking statements are based on the estimates and opinions of management on the date the statements are made, and we do not undertake any obligation to update forward-looking statements should conditions or our estimates or opinions change, except as required by law. Forward-looking statements are subject to risks, uncertainties and other factors, including risks associated with mineral and hydrocarbon exploration, price volatility in the commodities we seek, and operational and political risks. Readers are cautioned not to place undue reliance on forward-looking statements.

Contact Information