2011-08-04

TR-1 Announcement - Holding(s) in Company

TR-1: Notification of Major Interests in Shares

1.  Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: Tethys Petroleum Limited (TPL)

2.  Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights 
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached 
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments 
An event changing the breakdown of voting rights 
Other (please specify): Listing on the London Stock Exchange 

3.  Full name of person(s) subject to the notification obligation:
    Capital Research and Management Company

4.  Full name of shareholder(s) (if different from 3.):

5.  Date of the transaction and date on which the threshold is crossed or reached:
    25 July 2011

6.  Date on which the issuer notified:
    26 July 2011

7.  Threshold(s) that is/are crossed or reached:
    Above 5%

8.  Notified details:

---------------------------------------------------------------------------
A: Voting rights attached to shares 
---------------------------------------------------------------------------
Class/type of      Situation previous    Resulting situation after 
shares             to the triggering     the triggering transaction
                   transaction
Ordinary
KYG876361091

if possible using  --------------------------------------------------------
the ISIN CODE
                Number   Number       Number       Number     % of voting 
                of       of           of shares    of voting      rights 
                Shares   Voting                    rights
                         Rights -------------------------------------------
                            Direct Indirect Direct Indirect Direct Indirect
           25,973,100 25,973,100    25,973,100    25,973,100       9.9655%          
---------------------------------------------------------------------------
---------------------------------------------------------------------------
B: Qualifying Financial Instruments 

Resulting situation after the triggering transaction 
---------------------------------------------------------------------------
Type of     Expiration     Exercise/    Number of voting       % of voting
financial   date           Conversion   rights that may be     rights
instrument                 Period       acquired if the
                                        instrument is
                                        exercised/converted
 --------------------------------------------------------------------------
     N/A        N/A             N/A         N/A                 N/A
 --------------------------------------------------------------------------
 C: Financial Instruments with similar economic effect to Qualifying Financial Instruments
 --------------------------------------------------------------------------
 Resulting situation after the triggering transaction
 --------------------------------------------------------------------------
 Type of     Exercise  Expiration  Exercise/   Number of        % of voting  
 financial   price     date        Conversion  voting rights    rights
 Instrument                        period      instrument                          
                                               refers to
 --------------------------------------------------------------------------
 N/A         N/A        N/A       N/A          N/A          Nominal Delta
                                                            N/A     N/A
 --------------------------------------------------------------------------
 --------------------------------------------------------------------------
 Total (A+B+C)
 --------------------------------------------------------------------------
 Number of voting rights                       Percentage of voting rights

 25,973,100                                    9.9655%

9.  Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Proxy Voting: N/A

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:
    N/A

14. Contact Name:

15. Contact telephone number: