This is Tullow Oil’s first standalone Sustainability Report for some years, and it complements our 2019 Annual Report and provides further details of our environmental and social performance over the past year. In prior years, we have reflected sustainability content in our Annual Report. For 2019, the Executive Team decided to publish this dedicated Sustainability Report as a stronger reflection of our continuing commitment to playing a positive role in society and of our desire to respond to the increasing information needs of our stakeholders. This Sustainability Report was prepared in accordance with the Global Reporting Initiative (GRI) Standards (2016) core option. GRI Standards represent the most widely used sustainability reporting framework in the world today. GRI principles have informed our reporting approach: materiality (the issues relevant to our most significant impacts and which are of most importance to stakeholders), stakeholder inclusiveness (responding to stakeholder expectations and interests), sustainability context (presenting our performance in the wider context of sustainability issues) and completeness (inclusion of all the information which reflects significant economic impacts to enable stakeholders to assess our performance). In considering the content for this Sustainability Report, we also consulted the International Petroleum Industry Environmental Conservation Association (IPIECA) Oil and Gas Industry Guidance on Voluntary Sustainability Reporting.