1 EXHIBIT 21 SUBSIDIARIES OF THE CORPORATION Following is a list of subsidiaries of the Corporation. STATE OR OTHER JURISDICTION OF SUBSIDIARY INCORPORATION ---------- --------------- Boatmen's National Bank of Belleville................................................... United States Boatmen's First National Bank of Kansas City............................................ United States Boatmen's Bank of Southern Missouri..................................................... Missouri The Boatmen's National Bank of St. Louis................................................ United States Boatmen's National Bank of Boonville.................................................... United States Boatmen's Bank of Butler................................................................ Missouri Boatmen's National Bank of Cape Girardeau............................................... United States Boatmen's National Bank of Central Illinois............................................. United States Boatmen's National Bank of Charleston................................................... United States Boatmen's Bank of Delaware.............................................................. Delaware Boatmen's Bank of Franklin County....................................................... Illinois Boatmen's Bank of Kennett............................................................... Missouri Boatmen's National Bank of Lebanon...................................................... United States Boatmen's Bank of Marshall.............................................................. Missouri Boatmen's Bank of Mid-Missouri.......................................................... Missouri Boatmen's Bank of Mt. Vernon............................................................ Illinois Boatmen's Bank of Nevada................................................................ Missouri Boatmen's First National Bank of Oklahoma............................................... United States Boatmen's Bank of Pulaski County........................................................ Missouri Boatmen's Bank of Quincy................................................................ Illinois Boatmen's River Valley Bank............................................................. Missouri Boatmen's Bank of Rolla................................................................. Missouri Boatmen's Bank of Southwest Missouri................................................... Missouri Boatmen's Bank of Tennessee............................................................. Tennessee Boatmen's Bank of Troy.................................................................. Missouri Boatmen's Bank of Vandalia.............................................................. Missouri Boatmen's First National Bank of West Plains............................................ United States Superior Federal Bank, F.S.B. .......................................................... United States Boatmen's Bancshares of Iowa, Inc. ..................................................... Iowa Boatmen's Bank Iowa, N.A. .............................................................. United States Boatmen's Bank of Fort Dodge ........................................................... Iowa Boatmen's Bank of Kalona ............................................................... Iowa Boatmen's Bank of Marengo .............................................................. Iowa Boatmen's Bank of North Iowa ........................................................... Iowa Boatmen's National Bank of Northwest Iowa .............................................. United States Boatmen's Bank of Sigourney ............................................................ Iowa Boatmen's Bank of Sioux City ........................................................... Iowa Boatmen's Building Corporation of Iowa, Inc. ........................................... Iowa Boatmen's Information Systems of Iowa, Inc. ............................................ Iowa FKF, Inc. .............................................................................. Iowa Boatmen's Kansas, Inc. ................................................................. Kansas Boatmen's Bank of Kansas ............................................................... Kansas Boatmen's Texas, Inc. .................................................................. Missouri Boatmen's First National Bank of Amarillo .............................................. United States Eighth and Taylor Corp. ................................................................ Texas Boatmen's Oklahoma, Inc. ............................................................... Missouri Boatmen's Sunwest, Inc. ................................................................ New Mexico 2 STATE OR OTHER JURISDICTION OF SUBSIDIARY INCORPORATION ---------- --------------- Sunwest Bank of Albuquerque, N.A. ...................................................... United States Sunwest Bank of Clovis, N.A. ........................................................... United States Sunwest Bank of Farmington ............................................................. New Mexico Sunwest Bank of Gallup ................................................................. New Mexico Sunwest Bank of Grant County ........................................................... New Mexico Sunwest Bank of Hobbs, N.A. ............................................................ United States Sunwest Bank of Las Cruces, N.A. ....................................................... United States Sunwest Bank of Raton, N.A. ............................................................ United States Sunwest Bank of Rio Arriba, N.A. ....................................................... United States Sunwest Bank of Roswell, N.A. .......................................................... United States Sunwest Bank of Santa Fe ............................................................... New Mexico Sunwest Bank of El Paso ................................................................ Texas Security Bancshares, Inc. .............................................................. Oklahoma Catoosa Bancshares, Inc. ............................................................... Oklahoma Founders Bancorporation, Inc. .......................................................... Oklahoma Boatmen's Insurance Agency, Inc. ....................................................... Missouri Boatmen's Life Insurance Company........................................................ Missouri Boatmen's Mortgage Corporation.......................................................... Missouri Boatmen's Trust Company................................................................. Missouri Boatmen's Community Development Corporation............................................. Missouri Boatmen's Service Company, Inc. ........................................................ Missouri Tyler International Sales, Inc. ........................................................ U.S. Virgin Islands Credit Systems, Incorporated (44% stock ownership)...................................... Delaware Monetary Transfer System (Joint Venture-40.0%).......................................... Missouri The Corporation's subsidiaries do business only under their names as listed above. The Corporation's indirect subsidiaries not listed, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary at December 31, 1993.