News Releases

September 19, 2008

Shares Outstanding:  16,096,084

TSX: “ISR”                                                                                            

INTERNATIONAL SOVEREIGN ENERGY CORP. ANNOUNCES COMPLETION OF $2,650,000 OFFERING

Calgary, Alberta - September 19, 2008 - International Sovereign Energy Corp. (the "Company") (TSX: "ISR") is pleased to announce that it has successfully completed a maximum offering (the "Offering") of $2,650,000 of Units (the "Units") led by Canaccord Capital Corporation (the "Agent") on a best efforts agency basis.

Each Unit consists of one Class A common share and one half of one transferable Class A common share purchase warrant. Each whole warrant entitles the holder thereof to purchase one Class A common share for a period of 12 months following the closing date at a price of $1.50 and at $2.00 per share in the subsequent 12 months. If, over a period of 20 consecutive trading days, the Company's stock price four months after closing of the Offering and before the warrant expiry date exceeds the warrant exercise price by 30% on a daily closing volume weighted average basis, the Company may, within 30 days of such occurrence, give written notice to the holders that the warrant will expire on the 30th day following the date of such notice unless exercised by the holders.

In connection with the Offering, the Company paid compensation to the Agent consisting of (i) an 8%, or $212,000, cash commission; (ii) 212,000 Agent's Warrants, each being exercisable into one Class A common share at $1.25 within 24 months of closing; and (iii) a corporate finance fee of 48,000 Units.

"We are delighted to have received this vote of confidence from our investors, particularly in light of the current turmoil in the financial markets," said Eugene Hretzay, President and C.E.O of the Company.

The net proceeds of the Offering will be used by the Company for development of its oil and gas properties and for general corporate purposes.

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

For further information, please contact:

Eugene Hretzay
President and Chief Executive Officer
Tel:(416) 508-3472
ehretzay@isove.com

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.

Forward-looking statements: This news release contains certain forward-looking statements, including management's assessment of future plans and operations, and capital expenditures and the timing thereof, that involve substantial known and unknown risks and uncertainties, certain of which are beyond the Company's control. The Company's actual results, performance or achievements could differ materially from those expressed in, or implied by, these forward-looking statements and, accordingly, no assurance can be given that any of these events anticipated by the forward-looking statements will transpire or occur, or if any of them do so, what benefits, including the amount of proceeds, that the Company will derive there from. Additional information on the Company's operations and financial results are included in reports on file with Canadian securities regulatory authorities and may be accessed through the SEDAR website (www.sedar.com). All subsequent forward-looking statements, whether written or oral, attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by these cautionary statements. Furthermore, the forwardlooking statements contained in this news release are made as at the date of this news release and the Company does not undertake any obligation to update publicly or to revise any of the included forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by applicable securities laws.