D4
DIAMOND 4M OILFIELD & ENVIRONMENTAL LLC
CarrierIntel Score: 59/100. 33 inspection violations in the past 12 months. Updated Oct 2026.
DOT 3202815MC 187379ActiveMotor CarrierInterstatePROGRESSIVE COUNTY MUTUAL · $1,000,000 · 1 policyMONTAGUE, TX
COMPANY
Authority since
2018-11-09
MCS-150
2026-03-23 · 933,565 mi (2025)
Fleet
18 units · 14 trailers · 13 drivers
Annual mileage (VMT)
933,565 mi (2025)
ADDRESS
Physical
243 ALAMO RD
MONTAGUE, TX 76251
MONTAGUE, TX 76251
Mailing
Same as physical
CONTACT
Phone
9405775044
Email
cathy@diamond4m.com
OFFICERS
Primary Officer
CATHY MOWERY
Title
SECRETARY
OPERATION & CARGO
Operation classification
Private Property · Authorized For Hire
Specialty
Tanker / Bulk Liquids
Cargo types
7
General FreightLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsLiquids / GasesOilfield EquipmentConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
95 mo
Active authority
INSURANCE
1 active
PROGRESSIVE COUNTY MUTUAL
RISK GRADE
Moderate Risk
3 risk factors · 3 strengths
OOS RATE
16.4%
10 / 61 inspections
CarrierIntel Safety Score
Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.
59
out of 100
Fair
Markers: OOS inspection Crash Fatality
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Moderate Risk
3 risk factors · 3 strengths · 6 data pointsSAFETY PERFORMANCE
Crash Record
5 crashes · 1 fatal · 2 with injuries · 5 tow-away
Clean Inspection Rate
84% — 51 clean of 61 inspections
Out-of-Service Rate
16.4% — driver OOS 1 insp., vehicle OOS 9 insp.
COMPLIANCE & AUTHORITY
USDOT Registration
Status: Active
Operating Authority
Active: Motor Carrier
Out-of-service orders
None on record
Authority Events
2 historical event(s) on file
MCS-150 Filing
Last filed 2026-03-23
INSURANCE
Active Coverage
1 policy(ies) on file · total max coverage $1,000,000
SUMMARY
1 fatal crash — most recent 4 yr ago
11.1 crashes per 100 trucks/yr — above norm
2.3 violations per inspection
84% clean inspections
Active insurance on file
Coverage $1.0M
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