RNS Number : 5342B

Tullow Oil PLC

07 January 2015



TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES
1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:			Tullow Oil plc
2 Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights				x
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):
3. Full name of person(s) subject to the notification obligation:		The Capital Group Companies, Inc.
4. Full name of shareholder(s)  (if different from 3.):		See Section 9
5. Date of the transaction and date on which the threshold is crossed or reached:		5 January 2015
6. Date on which issuer notified:		6 January 2015
7. Threshold(s) that is/are crossed or reached:		Above 11%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of  voting rights

Direct

Direct

Indirect

Direct

Indirect

Ordinary Shares (GB0001500809)

97,267,150

97,267,150

100,237,951

11.008%

Unsponsored ADRs (US8994152028)

264,898

132,449

131,699

0.014%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

100,369,650

11.022%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
As of 5 January 2015                                                                                                              Number of Shares             Percent of Outstanding The Capital Group Companies, Inc. ("CG") holdings                             100,369,650                       11.022% Holdings by CG Management Companies and Funds: • Capital Guardian Trust Company                                                             8,731,592                         0.959% • Capital International Limited                                                                        416,300                         0.046% • Capital International SÁrl                                                                          1,971,346                         0.216% • Capital International, Inc.                                                                          2,694,818                         0.296% • Capital Research and Management Company                                      86,555,594                         9.505%         • AMCAP FUND
Proxy Voting:
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:
14. Contact name:	Kevin Massie
15. Contact telephone number:	+44(0) 203 249 9000

This information is provided by RNS

The company news service from the London Stock Exchange

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