Forman, Southwest and TBO are direct Subsidiaries of Mexco. Except as to the foregoing named Subsidiaries of Mexco, none of the Borrowers has any Subsidiaries. No Borrower is a member of any general or limited partnership, joint venture or association of any type whatsoever except (a) existing joint ventures with BTA Oil Producers, LLC and/or its Affiliates disclosed to the Lender on or before the date of this Loan Agreement, or (b) associations, joint ventures or other relationships (i) that are established pursuant to a standard form operating agreement or similar agreement or that are partnerships for purposes of federal income taxation only, (ii) that are not corporations or partnerships (or subject to the Uniform Partnership Act) under applicable state law, and (iii) whose businesses are limited to the same or similar businesses as now being conducted by the Borrowers.