Updated Oct 22, 2026

Diamond B Operating LLC

As of Oct 22, 2026, Diamond B Operating LLC in Lubbock, Texas reports 129 power units and 128 drivers on its MCS-150, not rated by FMCSA.

6607 Toledo Ave, Lubbock, Texas 79414 (806) 785-1300

Verified Oct 22, 2026 against FMCSA Company Census File (data.transportation.gov)

Diamond B Operating LLC (USDOT 2120653, MC-739224), doing business as Diamond B Energy Services, is an active motor carrier based in Lubbock, Texas that FMCSA's census classifies as for-hire and that declares hazardous materials on its MCS-150. Operation: interstate. Operating authority: active for-hire authority (MC). Fleet: 129 power units and 128 drivers (128 with CDLs). It reported 16,820,000 miles for 2024 on its MCS-150. Cargo classes declared: liquids / gases, other cargo (other: Water, Crude, LPG). FMCSA has not issued it a safety rating (no compliance review on record). In the last 24 months it had 168 roadside inspections, 46 of them (27.4%) with an out-of-service order; 127 hazmat inspections and 9 hazmat out-of-service orders; 7 reportable crashes (0 deaths, 5 injuries); a crash on record does not by itself mean the carrier caused it. Registration (MCS-150) last updated June 12, 2025.

Key facts

Fleet size	100–499 power units Power units, banded. source, unchanged since Oct 20, 2026
FMCSA safety rating	Not rated Satisfactory, Conditional or Unsatisfactory after an FMCSA compliance review; most carriers have never had one and are not rated. source, unchanged since Oct 21, 2026
Rating age	Not rated How old the FMCSA safety rating is. A rating reflects one compliance review on that date, not current performance; old ratings say little about the carrier today. source
Registration update overdue	No The MCS-150 was last updated more than two years ago, past FMCSA's two-year update requirement; fleet, driver and cargo figures may be out of date. source, unchanged since Oct 20, 2026
Operation	Interstate Interstate, intrastate hazmat or intrastate non-hazmat, as declared on the MCS-150. source, unchanged since Oct 20, 2026
Cargo classes (MCS-150)	Liquids / gases, Other cargo Cargo the carrier declared it hauls on its latest MCS-150 (FMCSA's fixed cargo list). source, unchanged since Oct 20, 2026
Driver count	100–499 drivers Total drivers, banded. source, unchanged since Oct 20, 2026
Last MCS-150 update	Jun 12, 2025 When the carrier last updated its registration (required at least every two years). source, unchanged since Oct 20, 2026
Out-of-service share (24 months)	Over 20% out of service The share of the carrier's roadside inspections in the last 24 months that ended in an out-of-service order. A carrier with few inspections can swing on one result. source
Roadside inspections (24 months)	168 Roadside inspections of the carrier's drivers and vehicles in FMCSA's Safety Measurement System file, which covers the last 24 months and is refreshed monthly. source
Reportable crashes (24 months)	7 Crashes involving the carrier's vehicles that met FMCSA's reporting threshold (a death, an injury treated away from the scene, or a vehicle towed away) in the last 24 months. A crash on record does not mean the carrier caused it. source
Doing business as	Diamond B Energy Services source, unchanged since Oct 20, 2026
USDOT number	2120653 source, unchanged since Oct 20, 2026
MC docket	MC-739224 source, unchanged since Oct 21, 2026
Operating authority	Active for-hire authority (MC) source, unchanged since Oct 20, 2026
Other cargo (as described)	Water, Crude, LPG source, unchanged since Oct 20, 2026
Power units	129 source, unchanged since Oct 20, 2026
Tractors (owned or leased)	129 source, unchanged since Oct 20, 2026
Trailers (owned or leased)	23 source, unchanged since Oct 20, 2026
Drivers	128 source, unchanged since Oct 20, 2026
CDL drivers	128 source, unchanged since Oct 20, 2026
Miles reported (MCS-150)	16,820,000 miles source, unchanged since Oct 20, 2026
Mileage year	2024 source, unchanged since Oct 20, 2026
Also hauls its own freight	No source, unchanged since Oct 20, 2026
USDOT registered since	Feb 16, 2011 source, unchanged since Oct 20, 2026
Inspections with an out-of-service order (24 months)	46 source
Hazmat inspections (24 months)	127 source
Hazmat out-of-service orders (24 months)	9 source
Deaths in those crashes	0 source
Injuries in those crashes	5 source
Crashes with a hazmat release (24 months)	1 source

Source event history

Source dates and first observation are different.

Jun 12, 2025: Filed an MCS-150 update Official source
Feb 16, 2011: Registered with FMCSA Official source

Dates on this record

Source updated	Oct 22, 2026 (FMCSA census rows last updated (portal metadata) (the whole dataset, not this record))
Collected	Oct 22, 2026, 10:22 PM ET (the last successful check of the source that included this record)
Effective	Filed an MCS-150 update: Jun 12, 2025; Registered with FMCSA: Feb 16, 2011 (when the source says each fact took effect)
Retired	Not retired: the source is still maintained (whether the dataset is still maintained)

In Texas

690 hazmat carriers in the dataset are in Texas; 109 have profiles on this site. Hazmat carriers in Texas

FMCSA safety rating (all 690 here): Conditional 20 (3%) · Not rated 436 (63%) · Satisfactory 234 (34%)

Rating age (all 690 here): Rating over 10 years old 174 (25%) · Not rated 436 (63%) · Rated within the last 5 years 44 (6%) · Rating 5–10 years old 36 (5%)

Fleet size (all 690 in this group): 10–24 power units (316) · 25–99 power units (248) · 100–499 power units (106) · 500+ power units (20)

Cargo classes (MCS-150) (all 690 in this group; a record can count under several values): General freight (494) · Other cargo (390) · Liquids / gases (371) · Machinery, large objects (324) · Oilfield equipment (305) · Chemicals (280) · 24 other values (2,421) · None on record (1)

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