Exhibit 21 SUBSIDIARIES The following is a list of the Company's consolidated subsidiaries as of December 31, 1999: Percent of State or Voting Country of Securities Subsidiary Organization Owned - ---------- ------------ ---------- The Beard Company (1) Oklahoma Registrant Beard Leasing Company Delaware 80% Beard Oil Company Delaware 100% Beard Oilfield Service and Supply Co. (2) Oklahoma 100% Beard Sino-American Resources Co., Inc. Oklahoma 100% Beard Technologies, Inc. Oklahoma 100% Carbonic Reserves (2) Nevada 100% Incorporated Tank Systems (5) Delaware 49% Incorporated Tank Systems de Mexico, S.A. de C.V. Mexico 100% Interstate Travel Facilities, Inc. Oklahoma 100% ISITOP, Inc. Oklahoma 80% ITS, Inc. Oklahoma 100% Reid Supply Company (2) Nevada 100% starpay.com, inc. Oklahoma 100% _______ (1) The consolidated financial statements of the Company include accounts of Registrant and the subsidiaries controlled by the Registrant. (2) Inactive subsidiary. (3) Excludes 80%-owned Cibola Corporation. Registrant does not have financial control of this subsidiary. (4) Also excludes 50%-owned ITS-TESTCO, L.L.C. and TESTCO INC. de MEXICO, S.A. de C.V. Registrant does not have operating and financial control of these subsidiaries. (5) Owns 100% of ITS, Inc. which in turn owns 100% of Incorporated Tank Systems de Mexico, S.A. de C.V.