News Releases

Date: July 21, 2009

Shares Outstanding:  16,096,084

TSX: “ISR”                                                                                            

Domestic Drilling Update

International Sovereign Energy Corp. (the "Company") reports the recently drilled Berwyn step out well, which was drilled to a depth of 850m, was abandoned after log results were interpreted. This exploratory well encountered gas but unfortunately was not commercially viable. The Company still has an estimated 300 Boe/d of behind pipe production based on logs within the current producing Berwyn wellbores and is currently evaluating the options to bring the production online this year, with the major factor being current natural gas prices.

The Company has plans during the balance of 2009 to further explore & develop the Berwyn/Grimshaw area, as well as continue to explore new areas within the Peace River arch later this winter. The Company's remaining drilling program currently has 3 - 4 more wells planned for the balance of the year, with a focus of diversifying its product mix more towards oil.

For further information, please contact:

Eugene N. Hretzay
President & CEO
T: [403] 263 - 2472
F: [403] 264 - 7035
E: ehretzay@isove.com

Reader Advisories

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. Such risks and uncertainties include, without limitation, risks associated with oil and gas exploration, development, exploitation, production, marketing and transportation, loss of markets, volatility of commodity prices, currency fluctuations, imprecision of reserve estimates, environmental risks, competition from other producers, inability to retain drilling rigs and other services, delays resulting from or inability to obtain required regulatory approvals and ability to access sufficient capital from internal and external sources, the impact of general economic conditions in Canada, the United States and overseas, industry conditions, changes in laws and regulations (including the adoption of new environmental laws and regulations) and changes in how they are interpreted and enforced, increased competition, the lack of availability of qualified personnel or management, fluctuations in foreign exchange or interest rates, stock market volatility and market valuations of companies with respect to announced transactions and the final valuations thereof, and obtaining required approvals of regulatory authorities. 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 assurances can be given that any of the 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. Readers are cautioned that the foregoing list of factors is not exhaustive. Additional information on these and other factors that could affect 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 forward-looking 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.

BOE may be misleading, particularly if used in isolation. A BOE conversion of 6 Mcf: 1 bbl is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead.

The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this news release.

This news release is not for dissemination in the United States or to U.S. persons.