Exhibit 21.1
SUBSIDIARIES OF
TESORO LOGISTICS LP

Subsidiary |  |  |  | Jurisdiction of Organization
Tesoro High Plains Pipeline Company LLC |  |  |  | Delaware
Tesoro Logistics Finance Corp. |  |  |  | Delaware
Tesoro Logistics Northwest Pipeline LLC |  |  |  | Delaware
Tesoro Logistics Pipelines LLC |  |  |  | Delaware
Tesoro Logistics Operations LLC |  |  |  | Delaware
Tesoro SoCal Pipeline Company LLC |  |  |  | Delaware
Tesoro Alaska Pipeline Company LLC |  |  |  | Delaware
QEP Field Services, LLC |  |  |  | Delaware
QEP Midstream Partners GP, LLC |  |  |  | Delaware
QEP Midstream Partners, LP (a) |  |  |  | Delaware
QEP Midstream Partners Operating, LLC (b) |  |  |  | Delaware
QEPM Gathering I, LLC (c) |  |  |  | Delaware
Rendezvous Pipeline Company, LLC (d) |  |  |  | Colorado
Rendezvous Gas Services, L.L.C. (e) |  |  |  | Wyoming
Green River Processing, LLC (f) |  |  |  | Delaware
Three Rivers Gathering, L.L.C. (g) |  |  |  | Delaware
Uintah Basin Field Services, L.L.C. (h) |  |  |  | Delaware

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(a) | 56% owned by QEP Field Services, LLC and 2% general partner interest owned by QEP Midstream Partners GP, LLC

(b) | 100% owned by QEP Midstream Partners, LP

(c) | 100% owned by QEP Midstream Operating, LLC

(d) | 100% owned by QEPM Gathering I, LLC

(e) | 78% owned by QEPM Gathering I, LLC

(f) | 50% owned by QEP Midstream Partners Operating, LLC

(g) | 60% owned by QEP Field Services, LLC and 40% owned by QEP Midstream Partners Operating, LLC

(h) 38% owned by QEP Field Services, LLC