Markwest Energy Operating Company LLC (USDOT 4151788)
No blockers or cautions found.
- Operating authority
- No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-08-16. We could not confirm that live just now.
- Insurance on file
- No active liability (BIPD) insurance on file with FMCSA.
- Safety rating
- No published safety rating
- Fleet on file
- 122 power units, 135 drivers
- Operation type
- Interstate
- Physical address
- 1515 ARAPAHOE ST STE 1-600, DENVER, CO 80202-2137
- MCS-150 last filed
- 2023-12
Connected carriers
Other carriers linked to this one in FMCSA registration and roadside-inspection records:
Frequently asked questions
What carrier is USDOT 4151788?
USDOT 4151788 is Markwest Energy Operating Company LLC, an interstate motor carrier.
What is Markwest Energy Operating Company LLC's USDOT number?
Markwest Energy Operating Company LLC's USDOT number is 4151788. No MC docket number is on file.
Is Markwest Energy Operating Company LLC currently authorized to operate?
No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-08-16. We could not confirm that live just now. Source: FMCSA registration and licensing records.
Does Markwest Energy Operating Company LLC have insurance on file with FMCSA?
No active liability (BIPD) insurance on file with FMCSA.
What is Markwest Energy Operating Company LLC's safety record?
In the last 24 months, FMCSA records show 1 of 8 vehicle inspections ending out-of-service for Markwest Energy Operating Company LLC, too few inspections for a stable rate. FMCSA records also show 0 reportable crashes in the same window.
What is Markwest Energy Operating Company LLC's CSA score?
FMCSA does not publish a single CSA score for carriers. Markwest Energy Operating Company LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Markwest Energy Operating Company LLC's FMCSA safety rating?
Markwest Energy Operating Company LLC has no published FMCSA safety rating. Most US carriers have never received a rating review, so an unrated carrier is the common case, not a warning sign by itself.
Changes over time
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Reconstructed from cached and fleetfax-ingested FMCSA public records (live FMCSA was unavailable) and may be out of date; verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment. FMCSA status