MOUNTAINWEST PIPELINE LLC
dba MOUNTAINWEST
TULSA, OK
07/02/1982
75
Power Units
74
Drivers
Current
as of today
Inactive · 75 power units · 74 drivers · Tulsa, OK
2026
Apr 8, 2026
MCS-150 biennial update filed
Reported mileage: 1 (2025)
Reported power units: 75
Reported drivers: 74
Reported trailers: 17
2025
~Nov 2025
Officer change
NATE CADWELL, AMY SHANK → NATE CADWELL
Nov 13, 2025
MCS-150 biennial update filed
Reported mileage: 535,450 (2024)
Reported power units: 75
Reported drivers: 74
Reported trailers: 17
~Oct 2025
Address changed: SALT LAKE CITY, UT → TULSA, OK
333 SOUTH STATE STREET, SALT LAKE CITY, UT 84145-0003 → ONE WILLIAMS CENTER RC2-033-3, TULSA, OK 74172
Aug 7, 2025
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2022)
Reported power units: 75
Reported drivers: 74
Reported trailers: 17
2024
~Mar 2024
Phone changed
(520) 794-6515 → (918) 200-2834
~Mar 2024
Email changed
matt.rademacher@swgas.com → nate.cadwell@williams.com
2023
Oct 25, 2023
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2022)
Reported power units: 75
Reported drivers: 74
~Mar 2023
Legal name changed
DOMINION ENERGY QUESTAR PIPELINE LLC → MOUNTAINWEST PIPELINE LLC
Feb 13, 2023
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
2022
Apr 5, 2022
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
~Apr 2022
Legal name changed
QUESTAR PIPELINE → DOMINION ENERGY QUESTAR PIPELINE LLC
~Mar 2022
DBA changed
DOMINION ENERGY → QUESTAR PIPELINES
Feb 4, 2022
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
Jan 27, 2022
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
2021
Apr 27, 2021
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
2020
Oct 8, 2020
MCS-150 biennial update filed
Reported mileage: 1,070,000 (2020)
Reported power units: 75
Reported drivers: 74
1982
Jul 2, 1982
DOT registered
Company registered with the FMCSA.