Exhibit 21.1

CONTANGO OIL AND GAS COMPANY

LIST OF WHOLLY-OWNED SUBSIDIARIES

DECEMBER 31, 2020

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Wholly-Owned Subsidiaries of Contango Oil & Gas Company as of 12/31/20

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Contango Resources, Inc.

Contango Midstream Company

Contango Operators, Inc.

Contaro Company
Contango Alta Investments, Inc.