Tethys Petroleum Lists on London Stock Exchange

July 25, 2011


Tethys Petroleum Limited (“Tethys Petroleum” or the “Company”) (TSX: TPL)(LSE: TPL) announces that its entire issued ordinary share capital has been admitted to the standard category of the Official List of the Financial Services Authority and have commenced trading on the main market of the London Stock Exchange under the ticker symbol “TPL”. Depository interests, representing Tethys Petroleum ordinary shares, have been admitted to CREST. Shareholders wishing to trade securities in the Company electronically on the London Stock Exchange can trade depository interests representing Tethys Petroleum ordinary shares in CREST.

The primary listing for the ordinary shares of the Company will continue to be the Toronto Stock Exchange in Canada and the Company will continue to retain its secondary listing on the Kazakhstan Stock Exchange.

The Company is not raising any funds or issuing any new shares in connection with its listing in London and, accordingly, the interests of existing shareholders of the Company will not be diluted as a result of Admission. There will remain 260,629,769 ordinary shares of the Company in issue.

Dr David Robson, Chairman, President and Chief Executive Officer of Tethys Petroleum commented: “Our listing on the main LSE exchange represents a further major stage in the development of our company and will, we believe draw attention to our progress to UK and international investors.”

Tracey Pierce, Director of Equity Primary Markets at London Stock Exchange Group, said: “We are delighted to welcome Tethys to the London Stock Exchange’s Main Market today. This listing will give the company exposure to the world’s most international market and to an unrivalled source of liquidity and new investors. Tethys’ admission to the Exchange reinforces London’s attractiveness to companies which have global reach and ambitions.”

Tethys is focused on oil and gas exploration and production activities in Central Asia with activities currently in the Republics of Tajikistan, Kazakhstan and Uzbekistan. This highly prolific oil and gas area is rapidly developing and Tethys believes that significant potential exists in both exploration and in discovered deposits.

Important Information

This announcement does not constitute an offer or invitation to any person to subscribe for or purchase any securities in the Company or any other entity.

This announcement constitutes an advertisement within the meaning of the Prospectus Rules of the Financial Services Authority, is not a prospectus and has been prepared solely in connection with Admission. Investors should not acquire ordinary shares in the Company except on the basis of information contained in the Prospectus published by the Company in connection with Admission. The Prospectus has been submitted to the National Storage Mechanism and will be available for inspection at http://www.hemscott.com/nsm.do. A copy of the prospectus is also available on SEDAR at http://www.sedar.com and on Tethys Petroleum’s Website at http://www.tethyspetroleum.com.

Contacts: Tethys Petroleum Limited Sabin Rossi Vice President Investor Relations +1 416 572 2065 +1 416 572 2201 (FAX) info@tethyspetroleum.com Tethys Petroleum Limited TD Canada Trust Tower 161 Bay Street, 27th Floor Toronto M5J 2S1, Canada www.tethyspetroleum.com Mobile site: http://m.tethyspetroleum.com In London: Veronica Zhuvaghena Vice President Corporate Communications +44 207 821 6128 +44 207 821 0612 (FAX) In Asia-Pacific: Quam IR Anita Wan, Associate Director + (852) 2217-2999 + (852) 2217-2999 (FAX) Anita.wan@quamgroup.com
SOURCE: Tethys Petroleum Limited

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