This project will address the growing global issue regarding the decommissioning of end-of-life offshore oil and gas (O&G) infrastructure. This project aims to provide informed, scientifically robust, and transparent decision-making regarding the fate of decommissioned offshore O&G infrastructure. The project will generate a collaborative high-impact scientific paper for publication within an open- sourced international peer-reviewed journal. The paper will outline the top pending questions, together with a comprehensive road map, for the coming decade on research priorities for this topic.