Exhibit 21.1
MPLX LP
LIST OF SUBSIDIARIES
as of December 31, 2015
Name of Subsidiary | Jurisdiction of Organization/Incorporation | |
* | Centrahoma Processing LLC | Delaware |
* | Jefferson Gas Gathering Company, L.L.C. | Delaware |
Marathon Pipe Line LLC | Delaware | |
MarkWest Blackhawk, L.L.C. | Texas | |
MarkWest Bluestone Ethane Pipeline, L.L.C. | Delaware | |
MarkWest Buffalo Creek Gas Company, L.L.C. | Oklahoma | |
* | MarkWest EMG Jefferson Dry Gas Gathering Company, L.L.C. | Delaware |
MarkWest Energy Appalachia, L.L.C. | Delaware | |
MarkWest Energy East Texas Gas Company, L.L.C. | Delaware | |
MarkWest Energy Finance Corporation | Delaware | |
MarkWest Energy GP, L.L.C. | Delaware | |
MarkWest Energy Operating Company, L.L.C. | Delaware | |
MarkWest Energy Partners, L.P. | Delaware | |
MarkWest Energy South Texas Gas Company, L.L.C. | Delaware | |
MarkWest Energy West Texas Gas Company, L.L.C. | Delaware | |
MarkWest Gas Marketing, L.L.C. | Texas | |
MarkWest Gas Services, L.L.C. | Texas | |
MarkWest Hydrocarbon, Inc. | Delaware | |
MarkWest Javelina Company, L.L.C. | Texas | |
MarkWest Javelina Pipeline Company, L.L.C. | Texas | |
MarkWest Liberty Bluestone, L.L.C. | Delaware | |
MarkWest Liberty Ethane Pipeline, L.L.C. | Delaware | |
MarkWest Liberty Gas Gathering, L.L.C. | Delaware | |
MarkWest Liberty Midstream & Resources, L.L.C. | Delaware | |
MarkWest Mariner Pipeline, L.L.C. | Delaware | |
MarkWest Marketing, L.L.C. | Delaware | |
MarkWest McAlester, L.L.C. | Oklahoma | |
MarkWest Michigan Pipeline Company, L.L.C. | Michigan | |
MarkWest Mountaineer Pipeline Company, L.L.C. | Delaware | |
MarkWest New Mexico, L.L.C. | Texas | |
MarkWest Ohio Fractionation Company, L.L.C. | Delaware | |
MarkWest Oklahoma Gas Company, L.L.C. | Oklahoma | |
MarkWest Panola Pipeline, L.L.C. | Texas | |
MarkWest Pinnacle, L.L.C. | Texas | |
* | MarkWest Pioneer, L.L.C. | Delaware |
MarkWest Pipeline Company, L.L.C. | Texas |
MarkWest PNG Utility, L.L.C. | Texas | |
* | MarkWest POET, L.L.C. | Delaware |
MarkWest Power Tex, L.L.C. | Texas | |
MarkWest Ranger Pipeline Company, L.L.C. | Delaware | |
MarkWest Texas LPG Pipeline, L.L.C. | Texas | |
MarkWest Texas PNG Utility, L.L.C. | Texas | |
MarkWest Utica EMG Condensate, L.L.C. | Delaware | |
* | MarkWest Utica EMG, L.L.C. | Delaware |
MarkWest Utica Operating Company, L.L.C. | Delaware | |
Mason Pipeline Limited Liability Company | Michigan | |
Matrex, L.L.C. | Michigan | |
MPLX Operations LLC | Delaware | |
MPLX Pipe Line Holdings LLC | Delaware | |
MPLX Terminal and Storage LLC | Delaware | |
Mule Sidetracks, L.L.C. | Delaware | |
Mule Tracts, L.L.C. | Delaware | |
MWE GP LLC | Delaware | |
* | Ohio Condensate Company, L.L.C. | Delaware |
* | Ohio Gathering Company, L.L.C. | Delaware |
Ohio River Pipe Line LLC | Delaware | |
* | Ohio Utica Jefferson Dry Gas Gathering Company, L.L.C. | Delaware |
* | Panola Pipeline Company, LLC | Texas |
* | West Relay Gathering Company, L.L.C. | Delaware |
West Shore Processing Company, L.L.C. | Michigan | |
* | Wirth Gathering Partnership | Oklahoma |
* | Indicates a company that is not wholly owned directly or indirectly by MPLX LP. |