Dr. Ero is a graduate of the University of Ibadan with a B.Sc Hons in Chemistry. He also attended Imperial College, London and obtained an M.Sc and D.I.C in Petroleum Engineering, and he obtained a DMS from Templeton College, University of Oxford. He furthered his studies at the Graduate School of Business, University of Columbia, New York and the Institute of Management Development, Lausanne Switzerland.
He began his career as a Petroleum Engineer in the Lagos Office of the Federal Ministry of Petroleum and Energy, and thereafter, was posted as Head, Federal Ministry of Petroleum Resources, Warri. He spent much of his career in the Public Service, where he served in many capacities spanning three decades in the Petroleum Industry at NNPC. He has held many positions including CEO/ Group General Manager of NAPIMS- NNPC, Managing Director, National Engineering and Technical Company (NETCO) – JV owned by NNPC and Betchel of the United States; Managing Director, Integrated Data Services Limited (IDSL), a subsidiary of NNPC, General Manager, Commercial, Nigeria LNG; General Manager, Human Resources Development – NNPC; Head, Central Purchasing and Supply Department, NNPC and Head of DPR, Federal Ministry of Petroleum Resources- Warri. He also served on the Boards of many Federal Government Parastatals, including Economic and Finance Committee of the Federal Government during the Buhari Administration, Petroleum Training Institute Warri, amongst others.
Dr. Gregory Ero is a Fellow of many professional bodies, including the Fellowship of the Nigerian Academy of Engineering, Fellow, Nigerian Society of Engineers; Hon Fellow, Nigerian Society of Chemical Engineers; Fellow, Institute of Directors of Great Britain. In the quest to develop local capability in the petroleum industry, he is presently the Chairman/CEO of Arkleen Oil & Gas Limited and Chairman, Cardinal Drilling Company Limited among others.
He joined the Board of FCMB Group Plc on December 23, 2013 as a Non- Executive Director.