This document provides instructions for an environmental reporting paper that analyzes and compares the 2017 sustainability reports of Shell and Lyondellbasell. The paper is to include an overview of the evolution of sustainability reporting, a discussion of two case studies using the reports, and a critical evaluation highlighting the benefits and limitations of each company's methodology. The proposed topic will comparatively analyze both reports' approaches to sustainability, with Shell focusing on energy transition, operations, society, and climate change and Lyondellbasell focusing on sustainable products, safety, environmental impact, and community support.