Exhibit 21.1
SUBSIDIARIES OF
ANTERO MIDSTREAM GP LP
| 
 Subsidiary  | 
 
  | 
 Jurisdiction of Organization  |    
| 
 Antero IDR Holdings LLC  | 
 
  | 
 Delaware  |    
| 
 Antero Midstream Partners GP LLC  | 
 
  | 
 Delaware  |    
| 
 Antero Midstream Partners LP  | 
 
  | 
 Delaware  |    
| 
 Antero Midstream LLC  | 
 
  | 
 Delaware  |    
| 
 Antero Water LLC  | 
 
  | 
 Delaware  |    
| 
 Antero Treatment LLC  | 
 
  | 
 Delaware  |    
| 
 Antero Midstream Finance Corporation  | 
 
  | 
 Delaware  |