Exhibit 21.1

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SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION

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Name of Subsidiary

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Jurisdiction of Organization

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Antero Midstream NewCo Inc.

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Delaware

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Antero IDR Holdings LLC

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Delaware

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Antero Midstream Partners GP LLC

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Delaware

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Antero Midstream Preferred Co LLC

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Delaware

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Antero Midstream Partners LP

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Delaware

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Antero Midstream LLC

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Delaware

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Antero Treatment LLC

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Delaware

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Antero Water LLC

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Delaware

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