Exhibit 21 Subsidiaries of the Registrant The following is a list of the Company's consolidated subsidiaries as of December 31, 2000: Percent of State or Voting Country of Securities Subsidiary Organization Owned ---------- ----------- ---------- The Beard Company (1) Oklahoma Registrant Beard Leasing Company Delaware 100% Beard Oil Company Delaware 100% Beard Sino-American Oklahoma 100% Resources Co., Inc. Beard Technologies, Inc. Oklahoma 100% Incorporated Tank Systems(2) 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% starpay, com, inc Oklahoma 78.4% (1) The consolidated financial statements of the Company include accounts of Registrant and the subsidiaries controlled by the Registrant. (2) Owns 100% of ITS, Inc. which in turn owns 100% of Incorporated Tank Systems de Mexico, S.A. de C.V. (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) Excludes subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary as of the end of the year covered by this report.