Tajikistan Exploration Well KOM201 Flows Gas

November 17, 2010

DUSHANBE, TAJIKISTAN, Nov 17, 2010 (MARKETWIRE via COMTEX) —

Tethys Petroleum Limited (“Tethys” or the “Company”) (TSX: TPL) today issued the following statement regarding the KOM201 exploration well in Tajikistan.

The Jurassic interval in the East Komsomolsk KOM201 well in Tajikistan is currently being flow tested. Gas is currently flowing from the well with a stable gas flare at the wellsite which is located in the northern suburbs of the Tajik capital city of Dushanbe. No definitive data is available at present and it is anticipated that it will take at least one month to complete testing operations and be in a position to issue definitive results. However given the urban location of the well and the visibility to the general public the Company feels it necessary to make the above statement.

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.

This press release contains “forward-looking information” which may include, but is not limited to, statements with respect to our operations. Such forward looking statements reflect our current views with respect to future events and are subject to certain risks, uncertainties and assumptions. See our Annual Information Form for the year ended December 31, 2009 for a description of risks and uncertainties relevant to our business, including our exploration activities. The gas flow mentioned in this release does not imply that this well will produce commercial gas as more information is required.

Contacts: Tethys Petroleum Limited Sabin Rossi Vice President Investor Relations +1 416 572 2065 +1 416 572 2201 (FAX) info@tethyspetroleum.com www.tethyspetroleum.com Tethys Petroleum Limited TD Canada Trust Tower 161 Bay Street, 27th Floor Toronto N5J 2S1, Canada In Asia-Pacific Quam IR Anita Wan, Associate Director + (852) 2217-2999 + (852) 2217-2999 (FAX) anita.wan@quamgroup.com Quam IR 3/F Fung House Moving 19-20 Connaught Road Central, Hong Kong Hong Kong
SOURCE: Tethys Petroleum Limited

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