DualEx Commences Pen-105A Sidetrack

/NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES/

CALGARY, March 21, 2012 /CNW/ - DualEx Energy International Inc. ("DualEx, or "the Company") (TSXV: DXE) announces that PetroHungaria kft, the operator of the Penészlek gas production concession in northeast Hungary, has commenced operations to re-enter and sidetrack the PEN-105 well to a bottomhole location approximately 430 meters across a fault in order to access a second compartment on the structure, believed to be gas-bearing. The previously announced PEN-105A sidetrack operation is expected take approximately three weeks to complete. DualEx holds a 40.44% interest in the PEN-105A well.

DualEx Energy International Inc. is an oil and gas exploration and production company with operations in the greater Mediterranean area. DualEx's common shares trade on the TSX Venture Exchange under the symbol "DXE".

Forward-Looking Statements

This news release contains forward-looking statements and forward-looking information within the meaning of applicable securities laws. The use of any of the words "expect", "anticipate", "continue", "estimate", "objective", "ongoing", "may", "will", "project", "should", "schedule", "believe", "plans", "intends" and similar expressions are intended to identify forward-looking information or statements. More particularly and without limitation, this news release contains forward looking statements and information concerning DualEx's future operations. The forward-looking statements and information are based on certain key expectations and assumptions made by DualEx, including expectations and assumptions concerning equipment and crew availability, and joint venture partner financial capability. Although DualEx believes that the expectations and assumptions on which such forward-looking statements and information are based are reasonable, undue reliance should not be placed on the forward looking statements and information because DualEx can give no assurance that they will prove to be correct. By its nature, such forward-looking information is subject to various risks and uncertainties, which could cause DualEx's actual results and experience to differ materially from the anticipated results or expectations expressed. These risks and uncertainties include, but are not limited to, reservoir performance, labour, equipment and material costs, access to capital markets, interest and currency exchange rates, and political and economic conditions.  Additional information on these and other factors is available in continuous disclosure materials filed by DualEx with Canadian securities regulators.  Readers are cautioned not to place undue reliance on this forward-looking information, which is given as of the date it is expressed in this news release or otherwise, and to not use future-oriented information or financial outlooks for anything other than their intended purpose. DualEx undertakes no obligation to update publicly or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.

Neither the 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.

Garry Hides, President & CEO
DualEx Energy International Inc.
200, 521 - 3rd Avenue SW
Calgary, Alberta, Canada T2P 3T3
Tel: [phone] ext. 223
www.dualexen.com

Jeremy Dietz
Investor Relations, The Equicom Group
300 - 5th Avenue SW, 10th Floor 
Calgary, Alberta, Canada T2P 3C4
Tel: [phone]
[email protected]