Regional geology is the foundation and architecture of geoscience and oil and gas exploration. It provides actual observations and facts. All research, modelling, and knowledge of Atlantic conjugate margins and their petroleum systems are shaped by the comprehensive understanding of the margins’ regional geology. The ability to contextualize using that regional framework permits the extrapolation of our findings and results along strike, as well as to the evolving divergent conjugate margins across the evolving Atlantic Ocean. Presentations discussing and providing insights into the regional geology of the Conjugate Atlantic Margins are solicited for this session.