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Truck Graph
80/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Black Diamond Oilfield Services
DOT 2537037 · Gardendale, TX
Report generated: June 4, 2026 at 12:36 PM
✗Authorized for hire?
✗Active insurance?
✗Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Black Diamond Oilfield Services (DOT 2537037) is a Texas-based intrastate hazmat carrier headquartered in Gardendale, TX. As of June 4, 2026 at 12:36 PM, operating authority is active but without for-hire authority. TruckGraph has detected 5 risk signals on this carrier, including: crash with fatalities or injuries on record; elevated vehicle out-of-service rate. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 4, 2026 at 12:36 PM.

FMCSA Public Record
Jaz LLC
Operating as: Black Diamond Oilfield Services
DOT Number2537037
MC Number—
Street10924 E COTTONWOOD RD
City / StateGardendale, TX 79758
Phone4329344731
Operation typeIntrastate Hazmat
HazmatNot authorized
Authority age11 yr 9 mo
MCS-150 filed09/11/2024
Company officerAnnette Zubia
Power units43
Total drivers45
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●Crash with fatalities or injuries on record
●Elevated vehicle out-of-service rate
●Unsafe driving violation on record
●Driver qualification violation on record
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
OOS rate 42.4% vs. national avg 22.26% — above average
Network Intelligence Map
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Power Units
43
Fleet
Drivers
45
Total
Inspections
59
On record
Crashes
1
On record
OOS Rate
42.4%
↑ Avg 22.26%
Authority Age
11 yr 9 mo
Since 2014
Violation Categories — Last 24 Months
Hours of Service
59 insp (100%)· 2 viol
Unsafe Driving
59 insp (100%)· 1 viol
Driver Fitness
59 insp (100%)· 2 viol
Vehicle Maintenance
59 insp (100%)· 58 viol
Controlled Substances
59 insp (100%)
Inspection History
59 total · OOS rate 42.4%
DateStateLevelDriver OOSVehicle OOSResult
7/31/2025TXII00Pass
8/31/2025TXII00Pass
9/30/2025TXII00Pass
8/30/2025TXII00Pass
7/29/2025TXII00Pass
1/29/2026TXII00Pass
4/29/2024TXII00Pass
10/28/2025TXII02OOS
12/28/2024TXII01OOS
11/27/2025TXII00Pass
Crash History
1 total on record
DateStateFatalitiesInjuriesTow-away
—TX10Y
Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
10924 E COTTONWOOD RD, Gardendale, TX, 79758 · Open in Maps →
10924 E COTTONWOOD RD, GARDENDALE, TX, 79758Open in Maps →
Authority Timeline
Authority GrantedAug 2014
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is Jaz LLC authorized to operate?

Jaz LLC's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Jaz LLC's safety record?

Jaz LLC has 59 roadside inspections on record with an out-of-service rate of 42.4%. Crash history shows 1 incidents. Review the full safety profile above before making a freight decision.

How many trucks does Jaz LLC operate?

Jaz LLC operates 43 power units with approximately 45 drivers.

Is Jaz LLC insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Jaz LLC had any risk indicators?

Jaz LLC has a risk score of 80/100 (Critical) with 5 active risk signals. Review the risk section above and verify independently before tendering.

What is the DOT number for Jaz LLC?

Jaz LLC's DOT number is 2537037. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Black Diamond Oilfield Services Safety Record, DOT 2537037. Retrieved from https://truckgraph.com/carriers/2537037
MLA
"Black Diamond Oilfield Services Safety Record, DOT 2537037." Truck Graph, Jun 4, 2026, https://truckgraph.com/carriers/2537037
Chicago
"Black Diamond Oilfield Services Safety Record, DOT 2537037." Truck Graph. Last modified June 4, 2026. https://truckgraph.com/carriers/2537037