Traders are better off NOT using documents like LOI, ICPO, FCO, etc. Even if and when they rarely are used in internal trades, on a restricted level within specific industries, they have no legal or customary basis in International Trade whatsoever. In fact the presence of many of these terms are considered to be signs of Advance Fee Fraud, by knowledgeable players and law enforcement.
He is a Crude Oil Buyers' Mandate for several giant U.S. and European crude oil and petroleum products buying houses and refineries, and a Consultant, as well, to private investors, entrepreneurs and corporations on how to obtain genuine crude allocation and license with the Nigerian authorities to become an authorized seller of Nigerian crude oil. He has been severally dubbed the "unofficial anti_scam czar" and the "conscience of the business" in the modern Internet petroleum trading market.