News Releases

March 21, 2006

TSX: “ISR”                       

Shares Outstanding: 13,242,130

DRILLING IN ABERTA TO START

International Sovereign Energy Corp. (the “Company”) reports that a drilling rig is on location at Grimshaw 10-17-84-22W5 in the Peace River area, Alberta where the Company holds a 75% working interest. The well is targeting a cretaceous sand gas zone. Upon completion the rig will move to Berwyn 2-11-84-1W5 also in the Peace River (a 100% working interest well) where the target is also a cretaceous gas zone.

At Medicine River 5-30-38-2W5 where the Company holds a 64% working interest a second rig is being mobilized and drilling is expected to commence within the next forty eight hours.  The well is targeting both Edmonton and Belly River gas zones. At Sinclair, Manitoba where the Company has a farm-in agreement on two blocks the drilling of the two scheduled 1,050 m wells targeting Bakken formation light 40 ° API oil drilling has been delayed due to a provincial road ban. These two wells will now be drilled after spring break-up. Planning for the balance of the first half 2006 drill program is progressing as scheduled.

International Sovereign Energy Corp. is an oil and gas exploration development and production company with offices in Vancouver, British Columbia, Calgary, Alberta and Islamabad, Pakistan and is active in the exploration and development of hydrocarbon reserves in Western Canada and internationally.

For further information contact:

Dr. Waseem Rahman Senior Vice President & Corporate Secretary Tel: (604) 684-7372 Fax: (604) 684-2407

Or visit our website at www.isove.com

The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. Certain information provided in this press release contains forward-looking statements that by their nature are subject to numerous risks and uncertainties and readers are cautioned that actual results may vary considerably from those forecasted.