TIDMTPL 
 
Tethys Completes Tajikistan Acquisition 
FOR:  TETHYS PETROLEUM LIMITED 
 
TSX, LSE SYMBOL:  TPL 
 
December 13, 2011 
 
Tethys Completes Tajikistan Acquisition 
 
DUSHANBE, TAJIKISTAN--(Marketwire - Dec. 13, 2011) - Tethys Petroleum Limited ("Tethys" or the "Company") 
(TSX:TPL)(LSE:TPL) today announced that it has completed the purchase of 34% of the shares in Seven Stars 
Energy Corporation from its Tajik joint venture partner Sangam Limited, and increased its shareholding to 85% 
(from 51%). 
 
Seven Stars Energy Corporation is the owner of the rights to the Bokhtar Production Sharing Contract ("Bokhtar 
PSC") in Tajikistan. 
 
/T/ 
 
=-  Tethys now owns a 85% controlling interest in the Bokhtar PSC 
 
 
=-  1.14 Billion barrels oil equivalent (7 TCF) audited unrisked Prospective 
    Resources are contained within the Contract Area 
 
 
=-  Excellent commercial terms fixed under a 25-year Production Sharing 
    Contract 
 
 
=-  35,000 Km2 (8.7 million acres) of the underexplored Afghan-Tajik Basin 
    with world class discovered fields nearby 
 
 
=-  Current oil production 
 
 
=-  Ongoing data acquisition in final stages with ultimate goal to drill the 
    first deep pre-salt exploration well in the near future 
 
 
/T/ 
 
Dr. David Robson, Chief Executive Officer of Tethys, said, "This is a great step forward that will allow Tethys 
a greater share in a very prospective, yet underexplored, area. I consider the Afghan-Tajik Basin and its 
extension the Amu-Darya Basin to be one of the most prolific in the world with giant and supergiant gas and 
condensate fields such as those in neighbouring Uzbekistan and in Turkmenistan. We are very pleased to have the 
continued support of our partners Sangam and will continue in ongoing discussions with potential farm-in 
partners with this acquisition providing a more efficient corporate structure for potential investors. This is 
a unique opportunity to now move forward and leverage a majority ownership in what Tethys regards as the jewel 
in the crown of the company." 
 
Tethys is focused on oil and gas exploration and production activities in Central Asia with activities 
currently in the Republics of Kazakhstan, Tajikistan 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. 
 
Forward Looking Information and Cautionary Statement regarding Prospective Resources 
 
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, the risk that the Company may be 
unable to complete its data and drilling programs within the timeframes contemplated. In addition, there is no 
certainty that any portion of the prospective resources will be discovered, and if discovered, there is no 
certainty that it will be commercially viable to produce any portion of the prospective resources. The term 
"prospective resources" is based on the definition in the COGE Handbook. The prospective resources were 
determined as at December 31, 2010. Reference is made to pages 66 to 68 of the Company's Annual Information 
Form dated March 23, 2011 available on sedar.com for a discussion relating to the prospective resources, 
including the description thereof and risks and uncertainties associated with recovery of Prospective 
Resources. See our Annual Information Form for a description of other risks and uncertainties relevant to our 
business, including our exploration activities. The "forward looking statements" contained herein speak only as 
of the date of this press release and, unless required by applicable law, the Company undertakes no obligation 
to publicly update or revise such information, whether as a result of new information, future events or 
otherwise. 
 
 
-30- 
 
FOR FURTHER INFORMATION PLEASE CONTACT: 
 
Tethys Petroleum Limited 
Sabin Rossi 
Vice President Investor Relations 
Office: +1 416 572 2065 
+1 416 572 2201 (FAX) 
info@tethyspetroleum.com 
 
OR 
 
In Europe: Tethys Petroleum Limited 
Veronica Zhuvaghena 
Vice President Corporate Communications 
Office: +44 1481 725911 
+44 1481 725922 (FAX) 
Web: www.tethyspetroleum.com 
Mobile site: m.tethyspetroleum.com 
 
OR 
 
In Asia-Pacific: Quam IR 
Anita Wan 
Associate Director 
Office: +852 2217 2999 
+852 2217 2999 (FAX) 
 
 
 
 
Tethys Petroleum Limited 
 

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