Exhibit 21.1

SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION

Name of Subsidiary

Jurisdiction of Organization

Antero Midstream NewCo Inc.

Delaware

Antero IDR Holdings LLC

Delaware

Antero Midstream Partners GP LLC

Delaware

Antero Midstream Preferred Co LLC

Delaware

Antero Midstream Partners LP

Delaware

Antero Midstream LLC

Delaware

Antero Treatment LLC

Delaware

Antero Water LLC

Delaware