May 21, 2008 at 07:09 AM EDT
Sonoran Energy Provides Operational Update
Production results of 1st KWB well in new well programme

DALLAS, May 21 /PRNewswire-FirstCall/ -- Sonoran Energy, Inc. (OTC:SNRN.PK), the independent oil and gas exploration and production company, today announced it had successfully completed a series of operations on the first well in its recently announced Central Texas KWB work programme. The programme targets up to 14 well re-completions in the Company's KWB field in Tom Green County in Central Texas.

Ralph Watkins, Sonoran Energy COO, commented: "The well was re-completed in a shallow gas zone and fracture stimulated using CO2 as the energizing medium. The initial production rate is estimated to be approximately 300 Mcf per day on a 20/64th choke. The well continues to clean up. The expected production rate was 200 MCF per day."

Peter Rosenthal, Sonoran Energy CEO said: "We are very pleased with this result. It proves that we have a good methodology in place and we expect to see several more wells re-completed over the weeks and months to come. The fact that we can re-complete existing wells rather than drilling new wells, make this project especially attractive from an economic viewpoint. We have a large inventory of wells to work on in Tom Green County."

Sonoran has concurrently re-completed a further 3 KWB wells in the Canyon which have tested gas with significant bottom-hole pressure. Hydraulic fracture stimulations, taking results from the KWB #3 are presently under design, and these wells will be stimulated and brought into production as soon as is operationally feasible.

About Sonoran Energy, Inc.

Sonoran Energy is a US-based independent oil and gas company that explores, develops, and enhances the performance of high value oil and gas opportunities. With a focus on health, safety and the environment, Sonoran Energy leverages its innovative organizational alignment model with leading technical partners.


    For more information contact:
    Investor Relations
    Dana Johnston
    Taylor Rafferty
    Tel: (212) 889-4350
    Email: sonoran@taylor-rafferty.com

This news release may contain forward-looking statements that are subject to certain risks and uncertainties that may cause actual results to differ materially from those projected on the basis of such forward-looking statements. Such forward-looking statements are made based upon management's beliefs, as well as assumptions made by, and information currently available to, management pursuant to the "safe-harbor" provisions of the Private Securities Litigation Reform Act of 1995.

Source: Sonoran Energy, Inc.

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