Gulf Keystone Petroleum : Admission of Shares

Not for release, publication or distribution, directly or indirectly,in whole or in partin or into the United States or any jurisdiction other than the United Kingdom and Bermuda where to do so would constitute a contravention of the relevant laws or regulations of such jurisdiction. This announcement (and the information contained herein) does not contain or constitute an offer to sell or the solicitation of an offer to purchase, nor shall there be any sale of securities in any jurisdiction where such offer, solicitation or sale would constitute a contravention of the relevant laws or regulations of such jurisdiction.

7 April2015

Gulf Keystone Petroleum Ltd. (LSE: GKP)

('Gulf Keystone' or 'the Company')

Admission of Shares to Trading and Listing

As per the Company's RNS of 31 March 2015, Gulf Keystone is pleased to announce that further to the successful placing of 85,900,000 new Common Shares of US$ 0.01 each in the Company (the 'Placing Shares') at a placing price of 32p per share (the 'Placing'), which resulted in the gross proceeds of US$ 40,693,235, the Admission of the Placing Shares will become effective and dealings in the Placing Shares will commence at 8.00 a.m. on 7 April 2015.

The total number of Common Shares in issue following completion of the Placing, and the total number of voting rights, is 978,138,061, which may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Gulf Keystone under the FSA's Disclosure and Transparency Rules.

Mirabaud Securities LLP and Pareto Securities Limited acted as joint bookrunners for the Placing.

Enquiries:

or visit:www.gulfkeystone.com

Notes to Editors:

· Gulf Keystone Petroleum Ltd. (LSE: GKP) is an independent oil and gas exploration and production company focused on exploration in the Kurdistan Region of Iraq.

· Gulf Keystone Petroleum International (GKPI) holds Production Sharing Contracts for four exploration blocks in Kurdistan, the Shaikan, Sheikh Adi, Ber Bahr and Akri-Bijeel blocks.

· GKPI is the operator of the Shaikan Block, which is a major commercial discovery, with a working interest of 75% and is partnered with MOL Kalegran Limited (a 100% subsidiary of MOL Hungarian Oil and Gas plc.) and Texas Keystone Inc., which have working interests of 20% and 5% respectively.

· Gulf Keystone plans to move into the large-scale phased development of the Shaikan field targeting 100,000 bopd of production capacity during Phase 1 of the Shaikan Field Development Plan.