At least N11.55 trillion or $84.52 billion expected revenue into the coffers of the nation’s Excess Crude Account for the eight-year period from 2007 to 2014 are unaccounted for, according to findings by PREMIUM TIMES based on now available data from multiple government agencies not made public until now. The ECA accounting has remained perhaps one of the most opaque public fund mechanisms in the country, puzzling even state governors who repeatedly challenged former Finance Minister Ngozi Okonjo-Iweala for lack of transparency and accountability regarding the organization of the fund. After a recent National Economic Council meeting in Abuja, a committee of state governors angrily lashed at Mrs. Okonjo-Iweala, accusing her office, as supervisors of the fund, of arbitrariness and probably illegality in the management of a fund meant for the three tiers of government but which the ministry of finance apparently ran as a sole federal government fund.