Carrier profile · USDOT 312736 · MC-271174 · Updated Jul 18, 2026

M-I DRILLING FLUIDS LLC

DBA M-I SWACO

29 power unitsavg 10.7 yrRegional · 4 statesHOUSTON, TX100/100
CARRIER ACTIVEMC-271174 ACTIVERATED SATISFACTORYHAZMAT
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Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Operating footprint· revealed by roadside-inspection geography

Operating radiusRegional
revealed
States observed4
US states
Inspections · 24 mo15
TX busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
HOUSTON, TX
5950 N COURSE DRIVE
Top corridor
TX
TX 8 · ND 5 · AR 1
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 4 states · trailing 24 mo

Roadside inspections by state · M-I DRILLING FLUIDS LLC · trailing 24 months
StateCoverageInspections
TXTexasHQ8
NDNorth Dakota5
ARArkansas1
LALouisiana1