MARKWEST ENERGY OPERATING COMPANY LLC
dba MPLX G&P
DENVER, CO
11/01/2023
310
Power Units
146
Drivers
Current
as of today
Active · 310 power units · 146 drivers · Denver, CO
2026
Aug 2026
Email changed
epcimaroli@marathonpetroleum.com → klhedglin@marathonpetroleum.com
Aug 2026
Fleet grew 122 → 310 power units
Aug 2026
Driver count changed 135 → 146
2024
Dec 2024
Fleet reduced 144 → 122 power units
Dec 2024
Driver count changed 144 → 135
2023
Dec 28, 2023
MCS-150 biennial update filed
Reported mileage: 100 (2023)
Reported power units: 144
Reported drivers: 144
Reported trailers: 25
Nov 1, 2023
DOT registered
Company registered with the FMCSA.