TIDMCOP 
 
RNS Number : 2287T 
Circle Oil PLC 
03 June 2009 
 

03 June 2009 
CIRCLE OIL PLC 
("Circle" or the "Company") 
 
 
Drilling Update 
 
 
Discovery in Well CGD-10, Sebou Permit, Rharb Basin, Morocco 
 
 
 
Circle Oil plc (AIM: COP), the international oil and gas exploration and 
development company, is pleased to announce that the CGD-10 exploration well has 
been drilled, logged and successfully tested in the Sebou Permit, Morocco. 
The Company confirms a discovery in the Lower Guebbas Sequence with the well 
testing gas at a sustained rate of 3.9MMscfd from the primary target using a 
24/64 inch choke. The perforated interval of 889.3 to 897 metres has a 
calculated net gas pay of 3.3 metres. The secondary target between 847.5 to 
854.5 metres has a calculated net gas pay of 2 metres but testing of this 
interval will be carried out at a later date.The well is being completed as a 
potential producer. 
A full technical evaluation of all the results of the well is underway. This 
will allow for forward planning as a precursor to further assessment of the 
resource, including conducting an extended well test to give a more complete 
estimation of the reserves. 
The drilling rig will now move to commence drilling the last well of the planned 
six well drilling programme in the area. 
 
 
The Sebou permit lies to the north-east of Rabat in the Rharb Basin in Morocco. 
The Rharb Basin is a foredeep basin located in the external zone of the Rif 
Folded belt. The concession agreement, in which Circle has a 75% share and 
ONHYM, the Moroccan State oil company, has a 25% share, includes the right of 
conversion to a production licence of 25 years, plus extensions in the event of 
commercial discoveries. 
 
 
David Hough, CEO of Circle, said: 
 
 
"We continue to enjoy drilling success in the Rharb and again we must thank our 
technical staff for their professionalism in achieving yet another discovery. 
Having drilled five of the six planned wells and had four discoveries and very 
good indications of gas in DRJ-6 well which is to be tested later, we are 
certainly achieving the results we had hoped for. As we move to our sixth and 
final well, we look forward to turning this success into revenue for the 
Company." 
 
 
 
In accordance with the guidelines of the AIM Market of the London Stock 
Exchange, Professor Chris Green, Chief Operating Officer of Circle Oil plc, an 
explorationist and geophysicist with over thirty years oil & gas industry 
experience, is a 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. 
 
 
 
 
Glossary: 
 
 
MMscfd    - Millions standard cubic feet per day 
 
 
 
 
 
 
For further information contact: 
 
 
Circle Oil plc                                         (+44 20 7638 9571) 
David Hough, CEO 
 
 
Collins Stewart Europe Limited            (+44 20 7523 8350) 
Adrian Hadden / Adam Cowen 
 
 
Fox-Davies Capital                               (+44 20 7936 5230) 
Daniel Fox-Davies 
 
 
Citigate Dewe Rogerson                      (+44 20 7638 9571) 
Martin Jackson / George Cazenove 
 
 
 
 
 
 
 
 
Notes to Editors: 
 
 
Circle Oil plc 
 
 
Circle Oil plc (AIM: COP) is an international oil & gas exploration and 
production Company with an expanding portfolio of assets in Morocco, Tunisia, 
Oman, Egypt and Namibia with a combination of low-risk near-term production and 
significant exploration upside potential. The Company listed on AIM in October 
2004. 
 
 
Internationally, the Company has continued to expand its portfolio over the past 
2 years and now has assets in the Rharb Basin, Morocco; the Ras Mamour Permit in 
southern Tunisia; the Mahdia Permit offshore Tunisia; the Grombalia Permit in 
northern Tunisia; the Zeit Bay area of Egypt and the Owambo Basin, Namibia. 
Circle also has the largest licence holding of any Company in Oman. In addition 
to its highly prospective Block 52 offshore, the Company also has an ongoing 
exploration program in Block 49 onshore. 
 
 
The Company's strategy is to locate and secure additional licenses 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 itself 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 Oil is available on its website at 
www.circleoil.net 
 
 
This information is provided by RNS, the company news service from the London 
Stock Exchange 
 
 
 
 
 
 
 
 
 
This information is provided by RNS 
            The company news service from the London Stock Exchange 
   END 
 
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