Circle Oil Plc Regulatory News (COP)

9 June 2014

Circle Oil Plc

("Circle" or the "Company")

Operating Update Tunisia

Mahdia Permit - Exploration Well El Mediouni-1 (EMD-1)

Circle Oil Plc (AIM: COP), the Middle East and Africa focused oil and gas exploration, development and production company, is pleased to announce the commencement of drilling of the well EMD-1 on the offshore Mahdia Permit using the drillship PetroSaudi Discoverer.

The well is located within the vicinity of many producing fields, including the Tazerka, Birsa, Oudna, and Halk El Menzel oil fields, and the Maamoura gas field. The well is planned to test the play potential of the El Mediouni prospect, including the primary Birsa Sands target and the secondary fractured carbonates of the Ketatna Formation.

The Birsa Sands alone have a management pre-drill P50 estimate of 185 MMbo STOOIP. The primary target, the Birsa Sands, is expected at 1,260 metres MD with the Ketatna Carbonates at 1,460 metres MD. The management view on the recoverable prospective resources estimate for the El Medouini prospect is 46 MMbo for the Birsa Sands objective alone. This is substantially larger than the recoverable commercial threshold for the area which stands at approximately 10 MMbo. 

Depending on progress rates the well is expected to take approximately 5-7 weeks to drill.

Commenting on the spudding of EMD-1, Prof. Chris Green, CEO, said:

"We are very pleased to be drilling what is our first offshore well and to be working with PetroSaudi and other experienced service companies on this project. It marks the start of another stage in our busy 2014 operational work programme."

Glossary

In accordance with the guidelines of the AIM Market of the London Stock Exchange, Dr Stuart Harker, VP Geology, with over 40 years experience, is the qualified person as defined in the London Stock Exchange's Guidance Note for Mining and Oil and Gas companies, who has reviewed and approved the technical information contained in this announcement. Dr. Harker holds a BSc (Hons) in Geology from the University of London (UK) and an MSc and PhD from the University of Saskatchewan, Canada. He is also a Fellow of the Geological Society of London and a Chartered Geologist.

For further information contact:

Circle Oil Plc (+44 20 7638 9571)

Professor Chris Green, CEO

Investec (+44 20 7597 5970)Chris SimGeorge Price

James Rudd

Liberum Capital Limited (+44 20 3100 2222)Simon Atkinson

Citigate Dewe Rogerson (+44 20 7638 9571)Martin JacksonShabnam Bashir

Murray Consultants (+353 1 498 0320)Joe MurrayJoe Heron

Notes to Editors

Circle Oil Plc (AIM: COP) is an international oil & gas exploration, development and production Company holding a portfolio of assets in Morocco, Tunisia, Oman, and Egypt with a combination of low-risk, near-term production, and significant upside exploration potential. The Company listed on AIM in October 2004.

Internationally, the Company has continued to expand its portfolio over the past years and now has assets in the Rharb Basin, Morocco; the Ras Marmour Permit in southern Tunisia; the Mahdia Permit offshore Tunisia, and the Zeit Bay area of Egypt. Circle also has the largest licensed acreage of any company in Oman. In addition to its prospective Block 52 offshore, Circle has an ongoing exploration programme in Block 49 onshore.

Circle's strategy is to locate and secure additional licences in prospective hydrocarbon provinces and, through targeted investment programmes, monetise the value in those assets for the benefit of shareholders. This could be achieved through farm-outs to selected partners who would then invest in and continue the development of the asset into production, or Circle may opt to use its own expertise to appraise reserves and bring assets into production, generating sustained cash flow for further investment.

Further information on Circle is available on its website at www.circleoil.net.