Our 2017 Report on Sustainability outlines performance in 2016 and provides a five-year performance trend wherever possible.
Ernst & Young LLP, an independent third party, has reviewed selected performance indicators for the 2016 reporting year using the GRI G4 guidelines and the sector disclosures.
For the purposes of this report, materiality, in a sustainability context, is defined as the relative significance of an issue’s environmental, social, governance and economic impacts (both positive and negative) to our business and our stakeholders.
Our materiality review process ensures the content we include in our annual Report on Sustainability reflects the key environmental, economic, social and governance issues considered most critical to our company and our stakeholders.
Our last extensive materiality review was conducted in late 2014 for our 2015 Report on Sustainability, in accordance with GRI’s G4 guidelines. For this 2017 report, we conducted a materiality reaffirmation process to test the validity of our previous extensive assessment and allow for any necessary updates to be made. Although different in scale, both materiality review processes followed the same two-step procedure described below.
Select a letter in the chart below to identify and learn more about an issue. You can filter categories below by selecting communities, economic, environment or our employees. Click the category again to turn the filter off. We not only identified our most material issues, we also mapped where the most material positive or negative impacts of those relevant issues occur within our value chain, both within and outside of our organizational boundary. Our upstream, refining and marketing and corporate offices exist within this boundary while our suppliers, some joint venture relationships, product transportation, customers and broader society exist outside of this boundary.