PCI.L Regulatory News (PCI)

PRESS RELEASE

Dublin: 26th July 2010

PETROCELTIC INTERNATIONAL PLC

Rig Contract Signed for further four well appraisal programme in Algeria.

Petroceltic International plc ("Petroceltic" or "the Company"), the upstream oil and gas exploration and production company focused on the Middle East, North Africa and Mediterranean region, is pleased to announce it has signed a contract for drilling rig services with Dalma Energy LLC, ("Dalma") a Dubai based drilling contractor, for their land rig No. 12, a 2000 horsepower drilling rig. The rig is currently stacked in Hassi Messaoud, Algeria, and will begin mobilisation immediately to the Isarene permit (Petroceltic 75% interest & Operator), for a drilling programme of four appraisal wells.

This additional programme is further to the successful five well drilling programme undertaken in 2009/2010, which demonstrated the presence of an extensive and probably continuous gas accumulation capable of flowing at rates exceeding 30mmscf/d following fracture stimulation.

The No. 12 rig has been in Algeria since it was newly constructed in 2007 and is expected to be on location ready to commence drilling in October 2010 as originally planned. The duration of the drilling and testing programme is expected to be between six and seven months.

The four well drilling and testing programme will focus on appraising the gas discoveries made on the Isarene permit by Petroceltic during 2009/10. This programme is fully funded following the US$120 million equity placing completed by Petroceltic in April 2010.

Dalma is a privately held Company that owns and operates over 20 land rigs in Algeria, Oman, Saudi Arabia, India and Cameroon. Dalma has previously drilled seven wells in Algeria, for operators such as Repsol and Eon Ruhrgas.

Petroceltic has a 75 per cent interest in the Isarene permit in association with Sonatrach, the Algerian state Oil and Gas Company, which holds the remaining 25 per cent.

Brian O'Cathain, Chief Executive of Petroceltic commented:

"Securing this rig is a significant step towards re-starting drilling operations on the Isarene permit. We expect to drill a minimum of four appraisal wells including at least one horizontal well. Drilling operations are scheduled to start in October 2010, as originally planned, with a view to the submission of a development plan (Final Discovery Report) to the Algerian Authorities at the end of this appraisal campaign. Our interpretation and analysis of the results from the five well programme in 2009/10 is progressing, supporting our belief that the Ain Tsila gas condensate discovery, on the Isarene permit, may turn out to be a world class hydrocarbon resource. We intend to announce results following completion of the individual fracture stimulation and well testing programmes for each well."

Ends

Press Enquiries to:

Brian O'Cathain/ Alan McGettigan, Petroceltic International Tel: +353 (1) 421 8300

Philip Dennis / Klara Kaczmarek, Pelham Bell Pottinger Tel: +44 20 7861 3919

Joe Murray / Joe Heron, Murray Consultants Tel: +353 (1) 4980300

Hugh McCutcheon / John Frain, Davy Tel: +353 (1) 679 6363

Dr. Dermot Corcoran, Head of Exploration, Petroceltic International plc, is the qualified person who has reviewed and approved the technical information contained in this announcement. Dr. Corcoran has a B.Sc. in Geology, a M.Sc. in Geophysics, and a Masters degree in Business Administration, all from the National University of Ireland, Galway. He also holds a Ph.D in Geology from Trinity College, Dublin. Dr. Corcoran has over 20 years experience in oil & gas exploration and production, and has previously worked at ExxonMobil, the Petrofina Group, and Statoil.

Notes to Editors:

Petroceltic International plc is a leading Upstream Oil and Gas Exploration and Production Company, focused on the Mediterranean, Middle East and North African area, and listed on the London Stock Exchange's AIM Market and the Irish Stock Exchange's ESM Market. The Company has exploration and appraisal assets in Algeria, Tunisia and Italy.