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Abdelrahman Atta Gadalla is a seasoned geoscientist with extensive experience in exploration, appraisal, and development within the petroleum industry. As a Senior Geoscientist at Calvalley Petroleum Inc. since June 2019, Abdelrahman has provided critical geoscience support for carbonates and clastics reservoirs in Yemen's Malik Block-9. Prior roles include providing consultancy services from January 2017 to June 2019, conducting geological training courses, and performing evaluations in Sudan and Chad. Abdelrahman also held senior geology positions at Petroleum Development Oman, Bahrain Petroleum Company, CEPSA, BG Group, Devon Energy, and Marathon Oil Corporation, engaging in exploration, development, and regional studies across multiple oil fields in the Middle East and Egypt. Abdelrahman holds a Bachelor of Science in Geology from Ain Shams University, Egypt.