Nigeria’s Economic and Financial Crimes Commission has arrested two ex-oil officials, including the former chief financial officer of Nigeria’s state energy firm NNPC, over an alleged $7.2-billion fraud, corruption, and abuse of office. The financial crimes authorities have arrested Umar Ajiya Isa, a former CFO at NNPC, as well as Jimoh Olasunkanmi, a former managing director of the Warri refinery in Nigeria. Three other officials are being investigated, according to a statement from the commission carried by Bloomberg. The two former…