ABCOrjiako went fully into the oil and gas business. Soon enough, he founded a company called Shebah Exploration and Production Company.ABCOrjiako’s Interest in Science. Orjiako realised how he fancied science and proceeded to study Medicine at the University of Calabar. ABCOrjiako's Childhood and Education. On the 2nd of October 1960, Ambrose Bryant Chukwuemeka Orjiako was born in Calabar, Cross Rivers State, to an Igbo family of late Mr Daniel Obiesie Orjiako and late Mrs Rebecca Orjiako from Umuchima, Uli Anambra State. ABCOrjiako built a vast empire spanning oil, logistics, and healthcare, despite legal battles tied to his exit from Seplat Energy.ABCOrjiako, a former orthopedic surgeon, co-founded Seplat and built a diverse empire across oil, logistics, healthcare, and consulting through Ordrec Group. Ambrosie Bryant Chukwuemeka (ABC) Orjiako, a surgeon, co-founded Seplat Petroleum Development Company PLC, a leading Nigerian oil and gas firm listed on the London and Nigerian stock exchanges. TheRiseandRise of ABCOrjiako.as Oil business in Nigeria, including the acquisition ofoil wells etc is not devoid of influences of political machinery and lords in the corridors of power. Bryant Orjiako,Co-Founder & Chairman, Seplat Petroleum Development Company is a speaker of the Oil & Gas Council. Find out more about Bryant here. It would be the perfect introduction to a story about theriseandfallof Dr. Bryant (ABC) Orjiako, the man who has been on both sides of the fence of nationwide popularity and acrimony. But things are once again looking up for the SEPLAT co-founder. Orjiako, a trained orthopaedic surgeon with specialisation in trauma management has an estimated net worth of U.S$1.5 billion from investments in oil and gas, maritime services, construction, real estate and pharmaceuticals.