FORM 8 (OPD) PUBLIC OPENING POSITION DISCLOSURE BY A PARTY TO AN OFFERRules 8.1 and 8.2 of the Takeover Code (the “Code”) 1.         KEY INFORMATION (a) Identity of the party to the offer making the disclosure:San Leon Energy plc(b) Owner or controller of interests and short positions disclosed, if different from 1(a):     The naming of nominee or vehicle companies is insufficient (c) Name of offeror/offeree in relation to whose relevant securities this form relates:     Use a separate form for each party to the offerSan Leon Energy plc(d) Is the party to the offer making the disclosure the offeror or the offeree?OFFEROR(e) Date position held: (f)  Has the party previously disclosed, or is it today disclosing, under the Code in respect of any other party to this offer?Will disclose positions in Offeree securities simultaneously with this OPD.   2.         POSITIONS OF THE PARTY TO THE OFFER MAKING THE DISCLOSURE (a)        Interests and short positions in the relevant securities of the offeror or offeree to which the disclosure relates Class of relevant security:    InterestsShort positionsNumber%Number%(1) Relevant securities owned and/or controlled:Nil Nil (2) Derivatives (other than options):Nil Nil (3) Options and agreements to purchase/sell:Nil Nil       TOTAL:Nil Nil  All interests and all short positions should be disclosed. Details of any open derivative or option positions, or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions). Details of any securities borrowing and lending positions or financial collateral arrangements should be disclosed on a Supplemental Form 8 (SBL). (b)        Rights to subscribe for new securities Class of relevant security in relation to which subscription right exists:N/ADetails, including nature of the rights concerned and relevant percentages:N/A If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 2(a) or (b) (as appropriate) for each additional class of relevant security. (c)        Irrevocable commitments and letters of intent Details of any irrevocable commitments or letters of intent procured by the party to the offer making the disclosure or any person acting in concert with it (see Note 3 on Rule 2.11 of the Code): None  3.         POSITIONS OF PERSONS ACTING IN CONCERT WITH THE PARTY TO THE OFFER MAKING THE DISCLOSURE Details of any interests, short positions and rights to subscribe of any person acting in concert with the party to the offer making the disclosure: DirectorNumber of ordinary sharesPercentage (%)Oisin Fanning60,840,0005.32%John Buggenhagen1,250,0000.11%Paul Sullivan59,840,0005.23%Daniel Martin1,134,5490.10%  DirectorNumber of ordinary shares over which options have been grantedExercise PriceExpiry DatePercentageOisin Fanning2,500,000£0.1104/02/20160.22%*5,000,000£0.3525/07/20170.44% 250,000£0.2529/12/20170.02%**3,500,000£0.3513/02/20180.31% 250,000£0.1114/11/20180.02% 2,750,000£0.1114/11/20180.24%^5,500,000€ 0.0514/11/20180.48% 3,500,000£0.1320/03/20190.31%^^5,500,000€ 0.0506/07/20190.48%Paul Sullivan2,000,000£0.1104/02/20160.42%*5,000,000£0.3525/07/20170.44% 250,000£0.2529/12/20170.02%**2,500,000£0.3513/02/20180.22% 250,000£0.1114/11/20180.02% 2,750,000£0.1114/11/20180.24%^4,000,000€ 0.0514/11/20180.35% 3,000,000£0.1320/03/20190.26%^^4,000,000€ 0.0506/07/20190.35%John Buggenhagen1,000,000£0.1104/02/20160.09%  1,000,000£0.1104/02/20170.09% 1,000,000£0.1104/02/20180.09%  1,000,000£0.1725/07/20170.09% *5,000,000£0.3525/07/20170.44% 250,000£0.2529/12/20170.02%**2,000,000£0.3513/02/20180.17% 250,000£0.1114/11/20180.02%^4,000,000€ 0.0514/11/20180.35% 2,500,000£0.1320/03/20190.22% ^^4,000,000€ 0.0506/07/20190.35%Raymond King1,000,000€ 0.0522/09/20150.09% 1,000,000£0.1104/02/20160.09% 250,000£0.2529/12/20170.02% 250,000£0.1114/11/20180.02% 1,500,000£0.1320/03/20120.13%Jeremy Boak1,000,000£0.1106/07/20150.09% 500,000£0.1104/02/20160.04% 250,000£0.2529/12/20170.02% 250,000£0.1114/11/20180.02%Daniel Martin1,000,000£0.1725/07/20170.09% 250,000£0.2529/12/20170.02% 250,000£0.1114/11/20180.02%  *Options vest on fulfilment of market condition requiring the Company share price to exceed £1.00 for a period of 30 days**Options vest on fulfilment of market condition requiring the Company share price to exceed £1.20 for a period of 30 days^ Options vest subject to achievement of a production target of 500 barrels of oil equivalent within the life of the option^^ Options vest subject to achievement of a production target of greater than 501 barrels of oil equivalent within the life of the option    If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 3 for each additional class of relevant security. Details of any open derivative or option positions, or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions). Details of any securities borrowing and lending positions or financial collateral arrangements should be disclosed on a Supplemental Form 8 (SBL). 4.         OTHER INFORMATION (a)        Indemnity and other dealing arrangements Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the party to the offer making the disclosure or any person acting in concert with it:If there are no such agreements, arrangements or understandings, state “none” None   (b)        Agreements, arrangements or understandings relating to options or derivatives Details of any agreement, arrangement or understanding, formal or informal, between the party to the offer making the disclosure, or any person acting in concert with it, and any other person relating toi)  the voting rights of any relevant securities under any option; or (ii) the voting rights or future acquisition or disposal of any relevant securities to which any derivative is referenced:If there are no such agreements, arrangements or understandings, state “none” None   (c)        Attachments Are any Supplemental Forms attached? Supplemental Form 8 (Open Positions)NOSupplemental Form 8 (SBL)NO  Date of disclosure:12/11/12Contact name:Ray KingTelephone number:+44 20 3617 3913  Public disclosures under Rule 8 of the Code must be made to a Regulatory Information Service and must also be emailed to the Takeover Panel at monitoring@disclosure.org.uk.  The Panel’s Market Surveillance Unit is available for consultation in relation to the Code’s dealing disclosure requirements on +44 (0)20 7638 0129. The Code can be viewed on the Panel’s website at www.thetakeoverpanel.org.uk.