M-I DRILLING FLUIDS LLC
USDOT 312736 · Doing business as M-I SWACO
Active, interstate carrier, mid-size fleet (37 power units) — safety rating: satisfactory.
Vetting summary
At a glance
- Insurance on fileTravelers Property Casualty Company of America
- Out-of-service rate12.5% vs 19.1% national avg
- Authority ageGranted 29 years ago
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 312736 |
|---|---|
| MC Number | MC-271174 |
| Legal Name | M-I DRILLING FLUIDS LLC |
| DBA Name | M-I SWACO |
| Entity Type | PARTNERSHIP |
| Phone | 12812858500 |
| Address | 5950 N COURSE DRIVE, Houston, TX, 77072 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | S — Satisfactory (rated 20040112) |
| Hazmat Flag | true |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Filings
Insurance
| Current Insurer | Travelers Property Casualty Company of America |
|---|---|
| Coverage on File | $750,000 |
| Insurance on File Since | 2018-07-01 |
| Insurer | Coverage | Form | Effective | Cancelled |
|---|---|---|---|---|
| Travelers Property Casualty Company of America | $750,000 | BMC-91X | 2018-07-01 | — |
Timeline
Authority history
| Authority First Granted | 1997-05-30 Established authority |
|---|---|
| Authority Events on Record | 1 |
- 1997-05-30 — Granted — Motor Carrier of Property (Except Household Goods) Active GRANTED
Our scoring
Safety scores
| Unsafe Driving | 78 / 100 |
|---|---|
| Hours-of-Service Compliance | 81 / 100 |
| Driver Fitness | 0 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 66 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 16 |
|---|---|
| Out-of-Service Rate | 12.5% vs 19.1% national average |
Most frequent violation categories: 28 (2), 31 (2), 39 (2).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 37 |
|---|---|
| Drivers | 25 |
| Recent Annual Mileage | 404,424 |
| Last MCS-150 Filing | 19-JUN-25 |
M-I DRILLING FLUIDS LLC operates 37 power units — a larger fleet than 99% of carriers registered in TX.
Nearby
Other carriers in Houston, TX
- LOOMIS ARMORED US LLC — USDOT 252201, 3042 power units
- SYSCO USA I INC — USDOT 156275, 1472 power units
- WESTERN COMPANY OF NORTH AMERICA — USDOT 21783, 1195 power units
- WESTERN OIL TRANSPORTATION INC — USDOT 27651, 1064 power units
- NABORS WELL SERVICES CO — USDOT 428014, 1014 power units
Browse all carriers in Houston, TX or all TX carriers.