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The Western Ogaden Basin of eastern Ethiopia represents a frontier hydrocarbon province with significant yet underexplored petroleum potential. This study presents a surface-focused exploration approach based on the identification and interpretation of active hydrocarbon seepages as direct indicators of subsurface petroleum systems. Field observations from Gelemso, Elele River Valley, Tulu Badhassoo, and Darkale reveal occurrences of oil seepages and possible natural gas emissions. These surface manifestations pro...