Exhibit 21.1
NOBLE MIDSTREAM PARTNERS LP
SUBSIDIARIES
| SUBSIDIARY | JURISDICTION OF ORGANIZATION | |
| Noble Midstream Services, LLC | Delaware | |
| Colorado River DevCo GP LLC | Delaware | |
| Colorado River DevCo LP | Delaware | |
| San Juan River DevCo GP LLC | Delaware | |
| San Juan River DevCo LP | Delaware | |
| Green River DevCo GP LLC | Delaware | |
| Green River DevCo LP | Delaware | |
| Laramie River DevCo GP LLC | Delaware | |
| Laramie River DevCo LP | Delaware | |
| Blanco River DevCo GP LLC | Delaware | |
| Blanco River DevCo LP | Delaware | |
| Gunnison River DevCo GP LLC | Delaware | |
| Gunnison River DevCo LP | Delaware | |
| Trinity River DevCo LLC | Delaware | |
Exhibit 21.1
NOBLE MIDSTREAM PARTNERS LP
SUBSIDIARIES
| General Partner or Sole Member | Limited Partner | ||||||||||||||
| Subsidiary | Name | Percent Ownership | Name | Percent Ownership | Jurisdiction of Organization | Direct/Indirect Ownership Percentage Held by NBLX | |||||||||
| Noble Midstream Services, LLC | Noble Midstream Partners LP | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Colorado River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Colorado River DevCo LP | Colorado River DevCo GP LLC | 80 | % | NBL Midstream, LLC* | 20 | % | Delaware | 80 | % | ||||||
| San Juan River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| San Juan River DevCo LP | San Juan River DevCo GP LLC | 25 | % | NBL Midstream, LLC* | 75 | % | Delaware | 25 | % | ||||||
| Green River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Green River DevCo LP | Green River DevCo GP LLC | 25 | % | NBL Midstream, LLC* | 75 | % | Delaware | 25 | % | ||||||
| Laramie River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Laramie River DevCo LP | Laramie River DevCo GP LLC | 5 | % | Noble Midstream Services, LLC | 95 | % | Delaware | 100 | % | ||||||
| Blanco River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Blanco River DevCo LP | Blanco River DevCo GP LLC | 25 | % | NBL Midstream, LLC* | 75 | % | Delaware | 25 | % | ||||||
| Gunnison River DevCo GP LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| Gunnison River DevCo LP | Gunnison River DevCo GP LLC | 5 | % | NBL Midstream, LLC* | 95 | % | Delaware | 5 | % | ||||||
| Trinity River DevCo LLC | Noble Midstream Services, LLC | 100 | % | N/A | — | % | Delaware | 100 | % | ||||||
| * | Not a subsidiary of NBLX. |