M-I DRILLING FLUIDS LLC
HOUSTON, TX · MC 271174
FMCSA census source published 2026-09-13 12:46 UTC. Record present in this snapshot.
Company identity and reported operations
| USDOT number | 312736 |
|---|---|
| Legal name | M-I DRILLING FLUIDS LLC |
| Doing business as / DBA | M-I SWACO |
| MC docket identifiers | MC 271174 |
| Reported physical address | 5950 N COURSE DRIVE, HOUSTON, TX, 77072, US |
| Reported business phone | 12812858500 |
| Reported power units | 37 |
| Reported drivers | 25 |
| Reported MCS-150 date | Jun 19, 2025 |
| Census status code | A |
Compare the reported Houston record
M-I DRILLING FLUIDS LLC reports 37 power units. The Houston, Texas directory contains 48,737 census records, of which 42,489 report at least one power unit.
Reported cargo and business classification
M-I DRILLING FLUIDS LLC reports PRIVATE PROPERTY;AUTHORIZED FOR HIRE in the census and lists 6 cargo categories.
- General freight
- Liquids and gases
- Oilfield equipment
- Chemicals
- Dry bulk commodities
- Other: OILFIELD SERVICE MATERIALS
Fleet size in local context
| Power units | Records | Share of all city records |
|---|---|---|
| 0 | 6,248 | 12.8% |
| 1 | 29,762 | 61.1% |
| 2–5 | 9,569 | 19.6% |
| 6–20 | 2,219 | 4.6% |
| 21–100: this carrier’s band | 691 | 1.4% |
| Over 100 | 248 | 0.5% |
| Unknown / other | 0 | 0.0% |
Record dates and observed changes
- Added to the census (not company founding date)
- Apr 07, 1988
- Carrier-reported MCS-150 filing date
- Jun 19, 2025
- Census source publication
- Sep 13, 2026 12:46 UTC
- First observed by CarrierTrail
- Sep 12, 2026 19:56 UTC
Source publication, carrier filing and our observation dates describe different events. An older filing date alone does not establish noncompliance.
Public-field differences from up to ten recent census change events are shown below.
No public-field changes are recorded in our observation window for this carrier. This does not mean the carrier never changed its details; tracking begins at the first observation shown above.
Authority and insurance
Authority filings
| Docket | Reported authority type | Reported status |
|---|---|---|
| MC271174 | Motor Carrier of Property (Except Household Goods) | Active |
Insurance filings
| Docket | Insurer | Policy | Effective date | Form code | Type code |
|---|---|---|---|---|---|
| MC271174 | Travelers Property Casualty Company of America | 257T0343 | 20180701 | BMC-91X | 1 |
Sources and check dates
Checked Sep 13, 2026 15:56 UTC.
- Authority filings source · Published Sep 13, 2026 10:45 UTC.
- Insurance filings source · Published Sep 13, 2026 10:45 UTC.
Missing matches do not establish missing authority or insurance. Filing records are shown as published; check current status before booking.
Explore these reported cargo categories
General freight · Dry bulk commodities
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
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