TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi
1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii
Gulf Keystone Petroleum Ltd.
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 thenotification obligation: iii
The Capital Group Companies, Inc.
4. Full name of shareholder(s) (if different from 3.):iv
See Section 9
5. Date of the transaction and date onwhich the threshold is crossed orreached: v
14 July 2016
6. Date on which issuer notified:
21 July 2016
7. Threshold(s) that is/are crossed orreached: vi, vii
Above 10% - aggregate of voting rights from shares
8. Notified details:
A: Voting rights attached to shares viii, ix
Class/type ofshares
if possible usingthe ISIN CODE
Situation previousto the triggeringtransaction
Resulting situation after the triggering transaction
NumberofShares
NumberofVotingRights
Numberof shares
Number of votingrights
% of voting rights x
Direct
Direct xi
Indirect xii
Indirect
Common Shares
(ISIN: BMG4209G1087)
69,596,975
123,891,966
12.0000%
B: Qualifying Financial Instruments
Type of financialinstrument
Expirationdate xiii
Exercise/Conversion Period xiv
Number of votingrights that may beacquired if theinstrument isexercised/ converted.
% of votingrights
Not applicable
C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi
Exercise price
Expiration date xvii
Exercise/Conversion period xviii
Number of voting rights instrument refers to
% of voting rights xix, xx
Nominal
Delta
Total (A+B+C)
Number of voting rights
Percentage of voting rights
9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi
Number of
Shares
Percent of Outstanding
The Capital Group Companies, Inc. ("CG") holdings
Holdings by CG Management Companies and Funds:
• Capital Research and Management Company1
- SMALLCAP World Fund, Inc.2
- New World Fund, Inc.2
57,715,000
66,176,966
5.5902%
6.4098%
1Subsidiary of The Capital Group Companies, Inc.
2Mutual fund managed by Capital Research and Management Company.
Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will ceaseto hold:
12. Date on which proxy holder will cease to holdvoting rights:
13. Additional information:
14. Contact name:
Christopher Aquino
15. Contact telephone number:
(213) 615-0469