Detmar Transport LLC
USDOT 3638442 · MC-1249305 · San Antonio, Texas · Interstate for-hire carrier · 100–249 power units
Detmar Transport LLC is a company based in San Antonio, Texas, registered with the FMCSA as an interstate carrier (authorized for hire). It reports 196 power units and 191 drivers, which ranks it #181 by fleet size among 910 active for-hire carriers with 50+ power units headquartered in Texas. In the 24 months to Sep 24, 2026 its trucks were inspected 126 times – about 0.6 inspections per power unit. 21.1% of vehicle inspections and 4.8% of driver inspections ended with an out-of-service order, against 18.8% and 2.6% for carriers of the same size nationally. FMCSA records 16 reportable crashes in the last 24 months (7 injuries, 0 fatalities, 15 tow-away), or 8.2 per 100 power units versus 4.5 for its size band. Crash counts in FMCSA data do not indicate fault. Its registered cargo types are general freight, machinery, large objects, liquids / gases, chemicals.
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Registration and contact
| Legal name | Detmar Transport LLC |
|---|---|
| DBA name | — |
| USDOT number | 3638442 |
| Operating authority (docket) | MC-1249305 |
| Entity type | Authorized for Hire |
| Operation | Interstate |
| Business type | — |
| Physical address | 18615 Tuscany Stone Ste 200, San Antonio, TX 78258 |
| Phone | (210) 471-2170 |
| First registered | May 19, 2021 |
| Last MCS-150 update | May 8, 2026 |
| Hazmat carrier | No |
Check live authority, insurance and out-of-service status: FMCSA SAFER snapshot for USDOT 3638442.
Fleet and drivers
| Equipment | Owned | Term-leased | Trip-leased |
|---|---|---|---|
| Straight trucks | 0 | 0 | 0 |
| Truck tractors | 176 | 20 | 0 |
| Trailers | 294 | 18 | 0 |
- 0.97 drivers per power unit (national median for 50+ unit fleets: 0.99).
- 1.6 trailers per tractor.
- 10,539,000 miles reported for 2025 – about 53,770 miles per power unit vs a 41,613 median for 100–249-unit fleets.
- 93% of listed equipment is owned rather than leased.
- 191 CDL drivers; 191 drivers operate interstate beyond 100 miles, 0 within 100 miles.
Safety record
Roadside inspections Sep 25, 2024 – Sep 24, 2026; crashes Nov 1, 2024 – Oct 31, 2026. Benchmarks: 100–249-unit for-hire carriers nationally (2,611) and Texas carriers with 50+ units (910).
| Measure | Detmar Transport LLC | Same size, US | TX average | |
|---|---|---|---|---|
| Vehicle out-of-service rate | 21.1% | 18.8% | 18.6% | 12% higher than average |
| Driver out-of-service rate | 4.8% | 2.6% | 3.5% | 83% higher than average |
| Crashes per 100 power units | 8.2 | 4.5 | 3.9 | 82% higher than average |
| Inspections | 126 | 126 with a driver check, 123 with a vehicle check, 151 BASIC violations recorded | ||
| FMCSA safety rating | Not rated – most carriers have never had a compliance review; this is not a negative finding. | |||
Cargo carried
Similar carriers in Texas
Closest fleet size and cargo mix among Texas carriers in this directory.
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| Gulfmark Energy Inc USDOT 229659 | Houston | 198 | 165 | 264 | 10.0% | 7 |
| Targa Transport LLC USDOT 126597 | Houston | 161 | 137 | 138 | 7.6% | 6 |
| Foundation Energy Services LLC USDOT 3793665 | Snyder | 196 | 167 | 142 | 36.8% | 2 |
| Miller Environmental Services LLC USDOT 728026 | Corpus Christi | 126 | 102 | 51 | 41.2% | 0 |
| Pencco Inc USDOT 368015 | Sealy | 180 | 54 | 116 | 5.7% | 1 |
| Arguindegui Oil Company II Ltd USDOT 249988 | Laredo | 123 | 117 | 141 | 10.0% | 6 |
Other carriers near San Antonio
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| H-E-B LP USDOT 351057 | San Antonio | 922 | 1,407 | 847 | 2.6% | 58 |
| Holt Texas Ltd USDOT 542319 | San Antonio | 739 | 630 | 103 | 8.6% | 11 |
| Coastal Transport Company Inc USDOT 36647 | San Antonio | 715 | 330 | 607 | 7.1% | 23 |
| Southwestern Motor Transport Inc USDOT 136555 | San Antonio | 277 | 252 | 151 | 13.2% | 9 |
| Unique Leasing Inc USDOT 363676 | San Antonio | 208 | 202 | 167 | 13.2% | 12 |
| Step Energy Services USA Ltd USDOT 2640421 | San Antonio | 193 | 165 | 27 | 36.8% | 1 |
| VTS Transportation Inc USDOT 1930689 | San Antonio | 180 | 185 | 592 | 17.1% | 16 |
| Alamo Transit Company USDOT 1941898 | San Antonio | 172 | 172 | 315 | 24.2% | 15 |
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FAQ
What is the USDOT number of Detmar Transport LLC?
Detmar Transport LLC is registered with USDOT number 3638442 and operating authority MC-1249305.
How many trucks does Detmar Transport LLC have?
It reports 196 power units (196 tractors, 0 straight trucks) and 312 trailers, with 191 drivers, on its last MCS-150 update (May 8, 2026).
Where is Detmar Transport LLC located?
Its registered physical address is in San Antonio, Texas 78258.
What is the out-of-service rate of Detmar Transport LLC?
Over 24 months, 21.1% of vehicle inspections and 4.8% of driver inspections resulted in an out-of-service order (same-size national average: 18.8% vehicle, 2.6% driver).
Source: FMCSA Company Census File, SMS inspection file and Crash File (data.transportation.gov), refreshed 2026-11-04. Figures are as reported to FMCSA and may lag. How we calculate these numbers. Spotted an error? Carriers update their record with FMCSA via the MCS-150 form; see corrections.