Geospatial Analytics are applied in this research to understand the ―Geospatial Environmental Planning for Energy Transition: Integrating Refinery Modernization, Urban Sustainability and Policy Coherence in Nigeria‘s Niger Delta‖ title project whose aim seeks to streamline a rational and environmental approach to moving Nigeria‘s petroleum economy to a low carbon level. Then, the research seeks to identify, from amongst the spatial planning models available, those which best integrates refinery modernization, land-use sustainability and policy coherence. The mixed methods employed in the study respond to specific research questions. Stage four of the geospatial methodology, which employs policy and environmental indicator integration and spatial overlay analysis of satellite (Landsat 8 and Sentinel-2) and raster GIS processed eco vulnerability analysis, refinery cluster spatial analysis, urban growth zone analysis, and enclave regional planning incoherence, demonstrates strong correlation with refinery spatial proximity and eco vulnerability degradation. Conclusions show modernized refinery spatial integration urban systems as the foundational requirement for Nigeria‘s energy transition. It introduces the need for a participatory spatial energy–environment governance framework, geospatial monitoring, and scalable urban development for sustainable governance