EXHIBIT (21)-1- COMPANIES OWNED BY UNIMAR COMPANY The following is a list of companies owned, directly and indirectly, by Unimar Company, together with their respective jurisdictions of incorporation. In each case, all of the outstanding voting securities of each company listed are owned by the company indicated by indentation as its parent, except as otherwise noted. State of Incorporation Unimar Company (a General Partnership under The Texas Uniform Partnership Act) Unimar Financing Corporation Delaware ENSTAR Corporation Delaware Alaska Interstate International Finance N.V. Netherlands Antilles Alaska Interstate International Finance B.V. The Netherlands AKI International Finance N.V. Netherlands Antilles VICO 7.5, Inc. Delaware Virginia Indonesia Company Delaware Virginia Services, Inc. Delaware Virginia Services, Ltd. Delaware Purchasing Services, Inc. Delaware ENSTAR Indonesia, Inc. Delaware Virginia International Company Delaware VICO Trading, Inc. Delaware ENSTAR Petroleum Ltd. Canada