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LONDON, UNITED KINGDOM and CALGARY, ALBERTA--(Marketwire - March 25, 2011) -

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Ithaca Energy Inc. (TSX VENTURE:IAE)(AIM:IAE) clarifies the impact on the Company's near to medium term financial position further to the recent announcement made by the UK government regarding changes to fiscal regulations.

On March 23 2011 the UK government announced that it would be increasing the rate of supplementary charge from 20% to 32% from 24 March 2011, resulting in a 62% marginal tax rate. The following important factors should be taken into account when considering the specific impact of the tax increase on the Company:

• The Company's tax losses pool at the start of 2011 was approximately US$215 million. This pool, combined with the Company's predicted future capital expenditure programme, indicates no taxes are likely to be payable for at least the next five years.
• The Company's revenues from future field developments with approximately less than 25 million barrels of oil equivalent, such as the Athena field, will continue to benefit from the Small Field Allowance sheltering up to US$120 million of field profits from the 32% supplementary charge.
• The Company has limited decommissioning liabilities, which minimises its exposure to the announced differential tax treatment of decommissioning costs.

The Company is continuing with its development of the Athena field and the core Stella hub. A review of the Company's portfolio of existing appraisal and development opportunities will be conducted as details of the draft tax change legislation emerge.

Notes to oil and gas disclosure:

The calculation of barrels of oil equivalent ("boe") is based on a conversion rate of six thousand cubic feet of natural gas ("mcf") to one barrel of crude oil ("bbl"). Boes may be misleading, particularly if used in isolation. A boe conversion ratio 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.

About Ithaca Energy:

Ithaca Energy Inc. and its wholly owned subsidiary Ithaca Energy (UK) Limited ("Ithaca" or "the Company"), is an oil and gas exploration, development and production company active in the United Kingdom's Continental Shelf ("UKCS"). The goal of Ithaca, in the near term, is to maximize production and achieve early production from the development of existing discoveries on properties held by Ithaca, to originate and participate in exploration and appraisal on properties held by Ithaca when capital permits, and to consider other opportunities for growth as they are identified from time to time by Ithaca.

Not for distribution to U.S. newswire services or for dissemination in the United States

Forward-looking statements

Some of the statements in this announcement are forward-looking. Forward-looking statements include statements regarding the intent, belief and current expectations of Ithaca Energy Inc. or its officers with respect to various matters. When used in this announcement, the words "expects," "believes," "anticipate," "plans," "may," "will," "should", "scheduled", "targeted", "estimated" and similar expressions, and the negatives thereof, whether used in connection with the estimated production levels, actual production levels from the Beatrice field, anticipated timing of production, barrels of oil equivalent in place, hydrocarbon composition or otherwise, are intended to identify forward-looking statements. Such statements are not promises or guarantees, and are subject to risks and uncertainties that could cause actual outcome to differ materially from those suggested by any such statements. These forward-looking statements speak only as of the date of this announcement. Ithaca Energy Inc. expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statement contained herein to reflect any change in its expectations with regard thereto or any change in events, conditions or circumstances on which any forward-looking statement is based except as required by applicable securities laws.

Neither 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.