LONE STAR STEAMWORKS LLC
DBA SPARTAN BOILER & MECHANICAL OR SPARTAN BOILER OR SPARTAN MECHANICAL · Amarillo, TX · MC identifier not reported
LONE STAR STEAMWORKS LLC (USDOT 3720909) runs a private fleet of 23 power units out of Amarillo, Texas. It reported 800,000 miles for 2023, about 34,783 per power unit. Cargo on its census record includes general freight, and metal sheets, coils and rolls.
From CarrierTrail’s copy of the FMCSA census, published Oct 28, 2026. Record present in this snapshot. Official record: SAFER · Motus
Company identity and reported operations
| USDOT number | 3720909 |
|---|---|
| Legal name | LONE STAR STEAMWORKS LLC |
| Doing business as / DBA | SPARTAN BOILER & MECHANICAL OR SPARTAN BOILER OR SPARTAN MECHANICAL |
| MC docket identifiers | Not reported |
| Reported physical address | 202 N POLK ST, AMARILLO, TX, 79107, US |
| Reported business phone | (806) 340-0264 |
| Reported power units | 23 |
| Reported drivers | 23 |
| Reported MCS-150 date | Sep 29, 2025 |
| Company officers (as filed) | Michael Jay Quisenberry |
| Carrier operation | Interstate |
| Entity type | Carrier |
| Hazmat indicator | No |
| Mailing address | PO BOX 11, AMARILLO, TX, 79105-0011 |
| Census status code | A |
| Safety rating | Not reported |
| Safety rating date | Not reported |
Fleet, equipment and drivers
LONE STAR STEAMWORKS LLC reports this equipment and these drivers on its MCS-150. Owned, term-leased and trip-leased units are counted separately.
No change in power units or drivers since CarrierTrail first recorded this carrier on Sep 12, 2026.
Counts as filed on the carrier’s MCS-150. Miles per power unit divides the reported annual miles by the reported power units.
Public inspection, violation and crash summary
FMCSA public SMS input records from 2024-09-25 through 2026-09-24.
1 roadside inspection between Sep 2024 and Sep 2026, in 1 state. Inspected in 1 of 25 months; busiest Sep 2025 with 1.
| Inspections | 1 |
|---|---|
| Driver out-of-service rate | 0.0% (0 of 1) |
| Vehicle out-of-service rate | 0.0% (0 of 1) |
| Violations | 2 across 1 inspections |
| Out-of-service violations | 0 |
| Crashes | 0 |
| Fatal / injury / tow-away crashes | 0 / 0 / 0 |
| Fatalities / injuries reported | 0 / 0 |
Most frequent published violation codes
39360DWindshield / Windows - Tinting permits less than 70% of light transmittance139395KEEEmergency Equipment - Stopped vehicle warning devices inadequate flag size1
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Compare the reported Amarillo record
LONE STAR STEAMWORKS LLC reports 23 power units. The Amarillo, Texas directory contains 3,177 census records, of which 2,868 report at least one power unit.
Reported cargo and business classification
LONE STAR STEAMWORKS LLC reports PRIVATE PROPERTY in the census and lists 5 cargo categories.
- General freight
- Metal sheets, coils and rolls
- Building materials
- Construction
- Other: OTHER
Fleet size in local context
| Power units | Records | Share of all city records |
|---|---|---|
| 0 | 308 | 9.7% |
| 1 | 1,764 | 55.5% |
| 2–5 | 808 | 25.4% |
| 6–20 | 206 | 6.5% |
| 21–100: this carrier’s band | 73 | 2.3% |
| Over 100 | 17 | 0.5% |
| Unknown / other | 1 | 0.0% |
Record dates and observed changes
- Added to the census (not company founding date)
- Sep 13, 2021
- Carrier-reported MCS-150 filing date
- Sep 29, 2025
- Census source publication
- Oct 28, 2026 10:49 UTC
- First observed by CarrierTrail
- Sep 12, 2026 19:56 UTC
Source publication, carrier filing and our observation dates describe different events. An older filing date alone does not establish noncompliance.
Public-field differences from up to ten recent census change events are shown below.
No public-field changes are recorded in our observation window for this carrier. This does not mean the carrier never changed its details; tracking begins at the first observation shown above.
Authority and insurance
No matching authority or insurance filings were found in the latest check.
Shared contact details
How many other records in the current FMCSA census report the same phone number or the same physical address as USDOT 3720909. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Explore these reported cargo categories
General freightBuilding materialsMetal sheets, coils and rolls
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
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