Shaikan Oil-in-Place Revision

RNS Number : 9019E

Gulf Keystone Petroleum Ltd.

14 April 2011

 



Not for release, publication or distribution in or into the United States or jurisdictions other than the United Kingdom and Bermuda where to do so would constitute a contravention of the relevant laws of such jurisdiction.

14 April 2011

Gulf Keystone Petroleum Ltd. (AIM: GKP)

("Gulf Keystone" or "the Company")

Shaikan Discovery: P90 volumes increase from 1.9 billion barrels to 4.9 billion barrels

Gulf Keystone Petroleum Ltd. (AIM: GKP) today announces a major revision of the gross oil-in-place volumes for the Shaikan discovery in the Kurdistan Region of Iraq.    

The revised gross oil-in-place volumes for the Shaikan discovery, as calculated by Dynamic Global Advisors (DGA), independent Houston-based exploration consultants, are a P90 value of 4.9 billion barrels to a P10 value of 10.8 billion barrels of oil-in-place with a mean value of 7.5 billion barrels and a P1 value of 15 billion barrels.

This is a very significant upward revision from the previously announced range of 1.9 to 7.4 billion barrels of gross oil-in-place with a mean value of 4.2 billion barrels and a P1 value of 13 billion barrels, also calculated by DGA. The revision is based on the data acquired since the last resource evaluation of the Shaikan discovery by DGA issued in January 2010, which was supported by an additional third party analysis by Ryder Scott consultants with a range of gross total petroleum-initially-in-place (PIIP) of 1.52 (P90) to 7.52 (P10) billion barrels.

The new data has been acquired as a result of:

·      Shaikan-2 oil discovery and well test in the upper section of the Jurassic section, nine km to the east of Shaikan-1

·      Shaikan-1 extended well test production

·      Shaikan-3 testing and production results

·      Preliminary results of the analysis of 3D seismic data acquired for the Shaikan (599km²) and Sheikh Adi (215km²) blocks

·      Evaluation of existing seismic lines and regional geological data for the Ber Bahr, Akri-Bijeel (Bijeel-1 well) and Sheikh Adi blocks.

·      PVT (pressure, volume, temperature) analysis of oil samples from the Triassic Kurre Chine tests at Shaikan-1.

The Shaikan-2 appraisal well is now drilling deeper into the Jurassic and is scheduled to drill on into the Triassic. Once the well reaches TD at the bottom of the Triassic or into the top of the Permian interval, the Company will consider a possible further revision of the Shaikan oil-in-place volumes, taking into account additional information from the reservoirs previously only penetrated by Shaikan-1 and from potential additional discoveries from possible zones below those reached by Shaikan-1, projected by DGA to contain an additional 1 to 5 billion barrels of prospective resources.

John Gerstenlauer, Gulf Keystone's Chief Operating Officer, commented:

"We have always believed that the initial gross oil-in-place range for the Shaikan discovery was a conservative estimate that would increase as more information became available. This gross oil-in-place volumes revision by DGA, entirely supported by the Company's management and Board of Directors, confirms that belief. We eagerly look forward to additional drilling results from Shaikan-2, the soon to be spudded Shaikan-4 and the remainder of the Shaikan appraisal drilling program. We firmly believe that even with this upward revision the numbers for the Shaikan discovery are still conservative."

Enquiries:

Gulf Keystone Petroleum:	[phone]
Todd Kozel, Executive Chairman and Chief Executive Officer
Ewen Ainsworth, Finance Director
Strand Hanson Limited	[phone]
Simon Raggett / Rory Murphy / James Harris
Mirabaud Securities LLP	[phone]
Peter Krens
Pelham Bell Pottinger	[phone]
Mark Antelme

or visit: www.gulfkeystone.com

John Gerstenlauer, the Company's Chief Operating Officer, who has 31 years of relevant experience within the sector and meets the criteria of a qualified person under the AIM note for mining, oil and gas companies, has reviewed and approved the technical information contained in this announcement.  Mr. Gerstenlauer is a member of the Society of Petroleum Engineers.

Notes to Editors:

§ Gulf Keystone Petroleum Ltd. (AIM: 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 fourexploration blocks in Kurdistan.

§ The Company's shares have traded on the AIM market of the London Stock Exchange since listing on 8^th September 2004.

§ Gulf Keystone Petroleum Limited is registered in Hamilton, Bermuda with offices in Erbil, Kurdistan (Iraq), Algiers, Algeria and London, UK.

§ Oil initially-in-place (or petroleum-initially-in-place) is that quantity of petroleum that is estimated, as of a given date, to be contained in known accumulations prior to production. The range of uncertainty of the oil-in-place (petroleum-initially-in-place) volumes is represented by a probability distribution with a low, mid and high provided: P90 represents at least a 90% probability (high) that the quantities determined to be in place will equal or exceed the low estimate; P50 represents at least a 50% probability (mid) that the quantities determined to be in place will equal or exceed the mid estimate; and P10 represents at least a 10% probability (low) that the quantities determined to be in place will equal or exceed the high estimate. A P1 estimate of quantities determined to be in place represents at least a 1% probability that this estimate will be equaled or exceeded.

Not for release, publication or distribution, directly or indirectly, in or into the United States or jurisdictions other than the United Kingdom and Bermuda where to do so would constitute a contravention of the relevant laws of such jurisdiction. This document (and the information contained herein) does not contain or constitute an offer of securities for sale, or solicitation of an offer to purchase securities, in the United States or jurisdictions other than the United Kingdom and Bermuda where to do so would constitute a contravention of the relevant laws of such jurisdiction. The securities referred to herein have not been and will not be registered under the US Securities Act of 1933, as amended (the "Securities Act"), and may not be offered or sold in the United States unless the securities are registered under the Securities Act, or an exemption from the registration requirements of the Securities Act is available. No public offering of the securities will be made in the United States.

 

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