MWHX
Markwest Hydrocarbon, Inc.
Midstream natural gas company; gathered, processed, and transported natural gas and natural gas liquids; parent of MarkWest Energy Partners, L.P., acquired by MPLX LP in 2015.
CUSIP: 570762104EnergyUS1 holder
Markwest Hydrocarbon, Inc.
Midstream natural gas company; gathered, processed, and transported natural gas and natural gas liquids; parent of MarkWest Energy Partners, L.P., acquired by MPLX LP in 2015.
No proxy statement recorded.