US · FMCSA ACTIVE HAZMAT
JAZ LLC
dba BLACK DIAMOND OILFIELD SERVICES
Gardendale, TX 79758 · DOT 2537037
Company profile
Web-discovered · as of 2026-07-30
Gardendale, Texas-based JAZ LLC, operating as Black Diamond Oilfield Services, specializes in oilfield hauling and logistics. The company operates tankers for oilfield liquids and supports oil and gas operations with a for-hire fleet.
Fleet use
Specialized service
Operating scope
Local
Service model
dedicated
Equipment
tanker, specialized
Ownership
Private
Employees
11-50
4329344731 OPERATING CONFIRMED
FMCSA shows active authority and consistent fleet size of 43-45 units/drivers.
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
43
power units · corroborated
Activity
road freight carrier
for hire licence
In operation since
2014
45 drivers
US compliance
Source FMCSA L&I / SAFER · as of 2026-07-12
Operating authority
None / private
Insurance on file
No
Out of service
No
Safety rating
UNRATED
Crashes (24 mo)
1
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