Black Diamond Oilfield Services
Legal name: Jaz LLC
Black Diamond Oilfield Services's DOT number is USDOT 2537037.
Needs attention
1 item to check
Based in
Gardendale, TX
Power units
43
Drivers
45
Operation
Intrastate · hazmat
Watch Black Diamond Oilfield Services for free
Next MCS-150 due: Jul 31, 2027
We'll email a reminder before it's due, and the same day this carrier's operating status, authority, safety rating or roadside inspections change.
Compliance check
From the FMCSA census and inspection files, checked Oct 19, 2026.
USDOT number status
OKActive in the FMCSA census.
MCS-150 biennial update
OKNext due Jul 31, 2027. Last filed Sep 12, 2024.
Safety rating
InfoNot rated. Most carriers are unrated until a compliance review.
Out-of-service rate (24 months)
CheckVehicle 45.5% vs 22.26% national, driver 7.4% vs 6.67% national, across 68 inspections.
Roadside inspections, last 24 months
| Type | Inspections | Out of service | OOS rate | National avg |
|---|---|---|---|---|
| Vehicle | 66 | 30 | 45.5% | 22.26% |
| Driver | 68 | 5 | 7.4% | 6.67% |
68 inspections and 364 violations since Oct 19, 2024. Last inspection Aug 11, 2026. National averages are FMCSA-published approximations.
Registration details
- Legal name
- Jaz LLC
- DBA
- Black Diamond Oilfield Services
- Classification
- authorized for hire
- CDL drivers
- 45
- MCS-150 last filed
- Sep 12, 2024
- Reported mileage
- 670,800 (2023)
- Added to FMCSA
- Aug 28, 2014
- Safety rating
- Not rated
Source: FMCSA Motor Carrier Census and Vehicle Inspection File (data.transportation.gov), public records. Contact details are intentionally not shown. MyDotCheck is an independent service and is not affiliated with, endorsed by, or part of the U.S. Department of Transportation or FMCSA. Data comes from public FMCSA datasets and may lag official records by a day or more. Government filings can be made directly with FMCSA at no charge.