Investor Presentaiton

Contents Important notice PremierOil IMPORTANT NOTICE: THIS PRESENTATION AND ITS CONTENTS ARE CONFIDENTIAL AND ARE BEING SUPPLIED TO YOU FOR YOUR INFORMATION ONLY AND ARE NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY TO ANY OTHER PERSON OR IN OR INTO OR FROM THE UNITED STATES OF AMERICA, CANADA, AUSTRALIA, JAPAN, SOUTH AFRICA OR ANY JURISDICTION WHERE TO DO SO IS UNLAWFUL. ANY FAILURE TO COMPLY WITH THIS RESTRICTION MAY CONSTITUTE A VIOLATION OF APPLICABLE LAW. PERSONS INTO WHOSE POSSESSION THIS DOCUMENT COMES SHOULD INFORM THEMSELVES ABOUT, AND OBSERVE, ANY RESTRICTIONS. BY ACCESSING THIS DOCUMENT YOU AGREE TO BE BOUND BY THE FOREGOING. THIS PRESENTATION IS NOT AN OFFER OR THE SOLICITATION OF AN OFFER TO SUBSCRIBE FOR OR PURCHASE ANY SECURITIES. The following applies to this document and any oral presentation of the information in this document by Premier Oil plc (the "Company") or any person on behalf of the Company, including any question-and-answer session (collectively, the "Information"). The Information has been prepared by the Company in conjunction with Chrysaor Holdings Limited ("Chrysaor") for background information purposes only, does not purport to be comprehensive, and does not constitute or form part of, and should not be construed as, an offer or the solicitation of an offer to subscribe for or purchase any securities. No reliance may be placed for any purpose on the Information or its accuracy, fairness or completeness. You must hold the Information in strict confidence and must not disclose, reproduce, publish, or otherwise divulge any Information (or permit any of the foregoing) to any other person. The Information is provided as of its date and is subject to change without notice. Nothing in the Information constitutes legal, tax or investment advice. Each recipient is responsible for making its own decision as to the use, accuracy, fairness and completeness of the Information. Neither Barclays Bank PLC, acting through its Investment Bank, nor BMO Capital Markets, nor RBC Europe Limited (together, the "Banks"), nor any of their Related Persons, nor any other person, has independently verified the Information. In relation to an entity, a "Related Person" means its subsidiary undertakings and affiliates (as defined in rule 501(b) of Regulation D of the United States Securities Act of 1933, as amended (the "Securities Act")) and each of their respective directors, officers, employees, advisers and agents. Certain industry, market and competitive position data contained in the Information may come from third party publications, studies and surveys. Such sources generally state that the data contained therein has been obtained from sources believed to be reliable, but that there is no guarantee of the accuracy, fairness or completeness of such data. While the Company believes that any such publications, studies and surveys has been prepared by a reputable party, neither the Company nor the Banks, nor any of their respective Related Persons, nor any other person has independently verified the data contained therein. In addition, certain of the industry, market and competitive position data contained in the Information comes from the Company's analysis of such third party publications, studies and surveys and the Company's own internal research and estimates based on the knowledge and experience of the Company's management in the markets in which the Company and Chrysaor operate. While the Company believes that such research and estimates are reasonable, they, and their underlying methodology and assumptions, have not been verified and are subject to change. Accordingly, no reliance should be placed on any of the industry, market or competitive position data contained in the Information and no representation or warranty (express or implied) is given that such data is accurate, fair or complete. Certain numbers in the Information are unaudited and are based on internal Company records. It is intended that certain of these numbers will be subject to further review in due course. Once they have been reviewed such numbers may be amended and the final numbers may differ from those set out in the Information. Until such time as that review is complete and any final numbers are published, no reliance shall be placed on, and no person shall be liable in any way in respect of, such numbers. This Information includes certain operational and financial measures not presented in accordance with IFRS and, therefore, are not measures of financial performance in accordance with IFRS and may exclude items that are significant in understanding and assessing the Company's and the Combined Group's financial results or future prospects. Therefore, these measures should not be considered in isolation or as alternative performance measures under IFRS. You should be aware that the presentation of these measures may not be comparable to similarly-titled measures used by other companies. Certain numbers in the Information, including financial information, have been subject to rounding adjustments. Accordingly, in certain instances, the sum or percentage change of the numbers contained in the Information may not conform exactly to the total figure given. Past performance of the Company and Chrysaor cannot be relied on as a guide to future performance. Nothing in the Information is to be construed as a profit forecast or estimate. To the fullest extent permitted by law, neither the Company, nor the Banks nor any of their respective Related Persons, nor any other person accepts any responsibility or liability whatsoever (whether in contract, tort or otherwise) for or makes any representation, warranty or undertaking, express or implied, as to the accuracy, fairness or completeness of the Information or any other information or opinion relating to the Company, Chrysaor and their subsidiaries, affiliates or associated companies, whether written, oral or in a visual or electronic form, and howsoever transmitted or made available or for any loss howsoever arising from any use of the Information or any such other information or opinion or otherwise arising in connection with the foregoing. No person shall have any right of action against the Company, Chrysaor, the Banks or any of their respective Related Persons or any other person in relation to the accuracy, fairness or completeness of any Information or for any loss, however arising (including in respect of direct, indirect or consequential loss or damage), from any use of the Information or otherwise arising in connection with the Information. No duty of care is owed to you or any other person in respect of the Information. In providing the Information, none of the Company, Chrysaor nor the Banks, nor any of their respective Related Persons, nor any other person undertakes any obligation to provide the recipient(s) with access to any additional information or to update the Information, or to correct any inaccuracies in the Information. November 2020 P1