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Exhibit 21.1
Name | Jurisdiction of Formation | |
---|---|---|
MarkWest Energy Operating Company, L.LC. | Delaware | |
Basin Pipeline L.L.C. | Michigan | |
West Shore Processing Company, L.L.C. | Michigan | |
MarkWest Energy Appalachia, L.L.C. | Delaware | |
MarkWest Texas GP, L.L.C. | Delaware | |
MW Texas Limited, L.L.C. | Delaware | |
MarkWest Michigan Pipeline Company, L.L.C. | Michigan | |
MarkWest Western Oklahoma Gas Company, L.L.C. | Oklahoma | |
MarkWest Power Tex L.P. | Texas | |
MarkWest Pinnacle L.P. | Texas | |
MarkWest PNG Utility L.P. | Texas | |
MarkWest Texas PNG Utility L.P. | Texas | |
MarkWest Blackhawk L.P. | Texas | |
MarkWest New Mexico L.P. | Texas | |
MarkWest Energy Finance Corporation | Delaware | |
MarkWest Energy East Texas Gas Company L.P. | Delaware | |
MarkWest Pipeline Company, L.P. | Delaware |
List of Subsidiaries