NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF THAT JURISDICTION

For immediate release 16 November 2011 RECOMMENDED OFFER

for

Dominion Petroleum Limited ("Dominion")

by

Ophir Energy plc ("Ophir")

Posting of Scheme Document

On 13 October 2011 the Boards of Dominion and Ophir announced that they had reached agreement on the terms of a recommended offer to be made by Ophir to acquire the entire issued and to be issued share capital of Dominion (the "Acquisition"). As explained in such announcement, it is intended that the Acquisition be implemented by way of a scheme of arrangement under section 99 of the Companies Act 1981 of Bermuda (the "Scheme").

Dominion is pleased to announce that it is today posting a scheme document to Dominion Shareholders (the "Scheme Document") containing further information about the Scheme and convening the Court Meeting and the General Meeting of Dominion Shareholders for 10.00 a.m. (Bermuda time) and 10.15 a.m. (Bermuda time) respectively on 12 December 2011. The meetings, at which resolutions will be proposed to approve the Scheme, are to be held on the 2nd Floor, Richmond House, 12 Par-la-Ville Road, Hamilton HM 08, Bermuda.

Update on Conditions

The Acquisition is subject to a number of Conditions including clearance from the Kenyan Competition Authority and the Tanzanian Fair Competition Commission and the consent of the Republic of Kenya's Minister of Energy.

Formal submissions have now been made to the Kenyan Competition Authority and the Tanzanian Fair Competition Commission seeking clearance in respect of the Acquisition. Furthermore, Dominion and Ophir will shortly be approaching the Republic of Kenya's Minister of Energy to seek consent to the Acquisition. Dominion will update the market when formal responses have been received.

Dominion is also pleased to announce that confirmation has been received in a form satisfactory to Ophir that only a work programme and budget as agreed between Ophir and Dominion has been approved in respect of Block 7 in Tanzania and, as such, the Condition set out in paragraph 6 of Appendix I to the announcement of 13 October 2011 has already been satisfied.

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Expected timetable

Subject to, amongst other things, the approval of Dominion Shareholders, the sanction of the Court and the satisfaction (or waiver) of the other Conditions, it is expected that the Scheme will become effective on 17 January 2012. It is anticipated that Admission of the New Ophir Shares to be issued to Scheme Shareholders will become effective and dealings for normal settlement in the New Ophir Shares will commence at 8.00 a.m. on 18 January 2012.

The Appendix to this announcement contains the expected timetable of principal events in connection with the Scheme.

Dealings and cancellation of Admission to trading on AIM

It is expected that dealings in Dominion Shares and Depositary Interests will be suspended at 6.00 p.m. (London time) on 13 January 2012. There will be no dealings in Dominion Shares or Depositary Interests from that time.

Dominion wishes to notify that application will be made to the London Stock Exchange for the cancellation of admission to trading on AIM of the Dominion Shares conditional upon the Scheme being sanctioned by the Court and becoming effective. The notice period of not less than 20 business days prior to cancellation referred to in Rule 41 of the AIM Rules will commence today. It is anticipated that cancellation of trading will take effect at 7.00 a.m. on 18 January 2012.

Further information

Full details of the Court Meeting and the General Meeting referred to above and information on both Dominion and Ophir are set out in the Scheme Document. Additional information about Ophir and the New Ophir Shares to be issued to Scheme Shareholders pursuant to the Scheme will be included in the Prospectus, which Ophir expects to publish by 5 December 2011 and which will be available to Dominion Shareholders electronically at http://www.ophirenergy.com.

Capitalised terms in this announcement have the same meanings as set out in the Scheme Document.

Enquiries

Ophir Tel: +44 (0) 20 7290 5800 Nick Cooper, Chief Executive Officer Jonathan Taylor, Founder Director

J.P. Morgan Cazenove (Financial Adviser and Tel: +44 (0) 20 7742 4000 Broker to Ophir) Barry Weir Neil Passmore James Robinson

FTI Consulting (PR adviser to Ophir) Tel: +44 (0) 20 7831 3113 Billy Clegg Edward Westropp

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Dominion Tel: +44 (0) 20 7349 5900 Roger Cagle, Chairman Andrew Cochran, Chief Executive Officer Rob Shepherd, Finance Director

BofA Merrill Lynch (Joint Financial Adviser to Dominion) Tel: +44 (0) 20 7996 1000 Paul Wheeler Anya Weaving Paul Frankfurt

RBC Capital Markets (NOMAD, Joint Financial Adviser to Dominion) Jeremy Low Tel: +44 (0) 20 7653 4000 Martin Eales Stephen McPherson

Pelham Bell Pottinger Limited (PR Adviser to Dominion) Tel: +44 (0) 20 7861 3112 Archie Berens

J.P. Morgan Cazenove is acting exclusively for Ophir and no one else in connection with the Acquisition or any other matter set out in this announcement or the Scheme Document and will not be responsible to anyone other than Ophir for providing the protections afforded to clients of J.P. Morgan Cazenove or for providing advice in relation to the Acquisition or in relation to the contents of this announcement, the Scheme Document or any transaction or any other matters referred to herein or therein.

Merrill Lynch International ("BofA Merrill Lynch") is acting exclusively for Dominion and no one else in connection with the Acquisition or any other matter set out in this announcement or the Scheme Document and will not be responsible to anyone other than Dominion for providing the protections afforded to clients of BofA Merrill Lynch or for providing advice in relation to the Acquisition or in relation to the contents of this announcement, the Scheme Document or any transaction or any other matters referred to herein or therein.

RBC Europe Limited, which trades as RBC Capital Markets and which is authorised and regulated in the United Kingdom by the Financial Services Authority, is acting exclusively for Dominion and no one else in connection with the matters set out in this announcement and the Scheme Document, and will not be responsible to anyone other than Dominion for providing the protections afforded to clients of RBC Europe Limited or for providing advice in relation to matters set out in this announcement or any offer or arrangements referred to herein or in the Scheme Document.

Further information

This announcement is for information purposes only and is not intended to, and does not constitute, or form part of, an offer to sell or any invitation to purchase or subscribe for any securities or the solicitation of an offer to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of any securities or the solicitation of any vote or approval in any jurisdiction pursuant to the Acquisition or otherwise. Neither this announcement nor the Scheme Document constitutes a prospectus or a prospectus equivalent document. The proposals for the Acquisition are made solely through the Scheme Document, which contains the full terms and conditions of the Scheme, including details of how to vote with respect to the Scheme. Please carefully read the Scheme Document in its entirety

UK-2902287-v6 -3- 70-40500216 before making a decision with respect to the Acquisition. Any acceptance or other response to the proposals should be made on the basis of the information in the Scheme Document.

This announcement and the Scheme Document have been prepared for the purposes of complying with English law and Bermuda law and information disclosed in them may not be the same as that which would have been prepared in accordance with the laws of jurisdictions outside England and Bermuda.

The release, publication or distribution of this announcement and/or the Scheme Document in jurisdictions other than the United Kingdom and Bermuda may be restricted by law or regulation and therefore persons into whose possession this announcement and/or the Scheme Document comes should inform themselves about, and observe, such restrictions. Any failure to comply with these restrictions may constitute a violation of securities laws of any such jurisdictions. To the fullest extent permitted by law, Dominion and Ophir disclaim any responsibility or liability for the violation of such restrictions by such person.

Any person (including, without limitation, any custodian, nominee and trustee) who would, or otherwise intends to, or who may have a contractual or legal obligation to forward this announcement and/or the Scheme Document and/or any other related document to any jurisdiction outside the UK or Bermuda should inform themselves of, and observe, any applicable legal or regulatory requirements of their jurisdiction before taking any action.

The Scheme is subject to Bermuda law and is not subject to the City Code on Takeovers and Mergers or the jurisdiction of the Panel and this announcement has not been prepared for the purpose of complying with the City Code on Takeovers and Mergers.

Notice to US holders of Dominion Shares

The New Ophir Shares have not been and will not be registered under the US Securities Act of 1933, as amended (the "Securities Act"), or under the securities laws of any state, district or other jurisdiction of the United States. Accordingly, such securities may not be offered, sold, re-offered, resold or delivered, directly or indirectly, in or into such jurisdictions except pursuant to exemptions from the applicable registration requirements of such jurisdictions. As such, it is expected that the New Ophir Shares to be issued in the Scheme will be issued in reliance upon the exemption from the registration requirements of the Securities Act provided by section 3(a)(10) of that Act based on Court approval of the Scheme. For the purpose of qualifying for this exemption from the registration requirements of the Securities Act, Dominion will advise the Court that its sanctioning of the Scheme will be relied upon by Dominion and Ophir as an approval of the Scheme following a hearing on its fairness to Dominion Shareholders at which hearing all such shareholders are entitled to attend in person or through counsel to support or oppose the sanctioning of the Scheme and with respect to which notification has been given to all such shareholders.

The New Ophir Shares have not been and will not be registered with, recommended by or approved by the SEC or any other federal, state or foreign securities commission or regulatory authority, nor has any such commission or regulatory authority reviewed or passed comment upon the accuracy or adequacy of this document. Any representation to the contrary is a criminal offence.

US persons should note that the Scheme relates to shares of a Bermuda company that is a "foreign private issuer" as defined in Rule 3b-4 under the US Securities Exchange Act of 1934, as amended (the "US Securities Exchange Act"), and the Scheme will be governed by Bermuda law. Neither the proxy solicitation rules nor the tender offer rules under the US Securities Exchange Act will apply to the Scheme. Moreover, the Scheme will be subject to the disclosure requirements and practices applicable in Bermuda to takeovers implemented by scheme of arrangement, which differ from the disclosure requirements under US securities laws. Financial information in, or incorporated by

UK-2902287-v6 -4- 70-40500216 reference into, this announcement and/or the Scheme Document has been prepared in accordance with accounting standards that may not be comparable to the accounting standards applicable to financial statements of US companies. None of the financial information in, or incorporated into, this document has been audited in accordance with auditing standards generally accepted in the United States or the auditing standards of the Public Company Accounting Oversight Board (United States).

If the Offer is implemented by way of an Amalgamation or a Takeover Offer under Bermuda law, the Offer will be made in compliance with applicable US laws and regulations, including (in the case of a Takeover Offer) applicable provisions of the tender offer rules under the US Securities Exchange Act.

Forward-Looking Statements

This announcement and the Scheme Document, including information included or incorporated by reference in the Scheme Document, may contain "forward looking statements" concerning the Wider Ophir Group and the Wider Dominion Group. Generally, the words "will", "may", "should", "continue", "believes", "expects", "intends", "anticipates" or similar expressions identify forward looking statements. The forward looking statements involve risks and uncertainties that could cause actual results to differ materially from those suggested by them. Many of these risks and uncertainties relate to factors that are beyond the companies' abilities to control or estimate precisely, such as future market conditions and the behaviours of other market participant. Ophir and Dominion cannot give any assurance that such forward-looking statements will prove to have been correct. The reader is cautioned not to place undue reliance on these forward looking statements. The statements contained in this announcement and/or the Scheme Document are made at the date of release/publication (as the case may be). Neither the Wider Ophir Group nor the Wider Dominion Group assume any obligation to, and do not intend to, update or revise publicly any of the forward looking statements set out herein or therein, whether as a result of new information, future events or otherwise, except as required pursuant to applicable law including, without limitation, the Prospectus Rules and the Disclosure and Transparency Rules.

Nothing in this announcement or the Scheme Document shall be deemed to be a forecast, projection or estimate of the future financial performance of the Wider Ophir Group, or of the Wider Dominion Group, or of the Combined Group, except where otherwise stated.

Publication on websites

A copy of this announcement will be available free of charge, subject to certain restrictions relating to persons resident in Restricted Jurisdictions, for inspection on Dominion’s website at http://www.dominionpetroleum.com and Ophir’s website at http://www.ophirenergy.com and by no later than 12 noon on 17 November 2011.

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APPENDIX

EXPECTED TIMETABLE OF PRINCIPAL EVENTS

The times and dates set out in the timetable below are indicative only and will depend, among other things, on the date upon which the Court sanctions the Scheme and the date on which the Conditions are satisfied or, if capable of waiver, waived. If any of the expected dates change, Dominion will give notice of the change by issuing an announcement through a Regulatory Information Service.

Unless otherwise stated, all references to time in this document are to London time.

Event Time/date Expected date Prospectus in respect of New Ophir Shares will On or before become available 5 December 2011 Latest time for receipt of the Forms of Instruction 2.00 p.m. on 8 December 2011 Latest time for receipt of blue Form of Proxy for the Court Meeting 2.00 p.m. on 9 December 2011(1) Latest time for receipt of white Form of Proxy for the General Meeting 2.15 p.m. on 9 December 2011 Scheme Voting Record Time 6.00 p.m. on 9 December 2011(2) Court Meeting 10.00 a.m. (Bermuda time) on 12 December 2011 General Meeting 10.15 a.m. (Bermuda time) on 12 December 2011(3) Last day of dealings in, and for registration of transfers of, Dominion Shares and DIs 13 January 2012 Court Hearing to sanction the Scheme and Trust Deed Poll terminates 16 January 2012 DI Holders entered on the Register 9.00 a.m. on 17 January 2012(4) Scheme Record Time midday (London Time) on 17 January 2012(5) Effective Date of the Scheme 17 January 2012 Cancellation of admission to trading on AIM of Dominion Shares 18 January 2012 Issue of New Ophir Shares 18 January 2012 Admission of, and commencement of dealings in, New Ophir Shares on the London Stock Exchange 8.00 a.m. on 18 January 2012 Crediting of New Ophir Shares to CREST accounts 8.00 a.m. on 18 January 2012 Latest date for despatch of share certificates in respect of New Ophir Shares 31 January 2012 The Court Meeting and the General Meeting will both be held on the 2nd Floor, Richmond House, 12 Par-la-Ville Road, Hamilton HM08, Bermuda on 12 December 2011. The Court Meeting will start at 10.00 a.m. (Bermuda time) and the General Meeting will start at 10.15 a.m. (Bermuda time) (or as soon thereafter as the Court Meeting has been concluded or adjourned).

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(1) If the blue Form of Proxy for the Court Meeting is not received by Dominion’s Registrar by the above time, it may be handed to Dominion’s Registrar, on behalf of the Chairman of the Court Meeting, before the commencement of that meeting. (2) If either of the Meetings is adjourned, then the Scheme Voting Record Time for the relevant reconvened meeting will be 6.00 p.m. (London time) on the date which is two days (excluding any part of a day that is not a working day) prior to the date set for the adjourned meeting. (3) Or as soon thereafter as the Court Meeting has been concluded or adjourned. (4) A DI Holder’s CREST account details will be transferred by Computershare Investor Services (Jersey) Limited to Capita Registrars (the registrar for Ophir). Temporary documents of title have not been and will not be issued in connection with the entry of the DI Holders on the Register. Capita Registrars will credit a DI Holder’s CREST account with its entitlement to New Ophir Shares in accordance with the terms of the Scheme. (5) The Scheme Record Time will be midday (London time) on the business day immediately after the Court Hearing

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