本文探討國內油品市場開放後中油與臺陘公司價格競爭的可能情形。此一價格競爭型態牽涉機督體與企業體不同的運作機制，是一種不公平的競爭。長期而言，中油公司無法有效降低成本，將被迫退出油品市場。另外，政府應對油價建立監視制度，以避免油價競爭所引起的市場不穩定。

　　　　　This paper analyzes the price competitions between Chinese Petroleum Company (C.P.C) and Formosa Oil company (F.O.C.) after oil market oil market was deregulated. Such a competition involved different mechanisms of public company from private enterprise. This is an unfair game. In the long-run, if C.P.C. and not decrease his cost effectively, he will be out from the oil market. In additions government must establish oil price guide system to avoid oil market unstable.