Carrier profile · USDOT 240804 · Updated Jun 13, 2026

Southern Petroleum Laboratories Inc

DBA SPL

37 power unitsRegional · 4 statesCASPER, WY50/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

37Power units

4 observed · MCS-150

3Trailers seen

Decoded · vPIC

7.0Avg age (yr)

2008–2025 · vPIC

Call dispatch(337) 258-6511 Email dispatchnmayeaux@spl-inc.com

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Limited record

Not enough federal record to assess. Verify authority and insurance directly.

Watch · 2

Vehicle out-of-service rate well above average75.0% of vehicle inspections were placed out of service vs the 22.26% national average.Not enough inspection history to rate4 federal roadside inspections in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.

In good standing · 1

Established 43 yearsOperating authority has been on file since 1983.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo75.0%

▲ 22.26% nat'l

Crashes · fatal

1 in 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo75.0%

▲ 22.26% nat'l

Crashes · fatal

1 in 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

37 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Not yet decoded

Identity stabilityStable

42 yr unchanged

Same registration since 1983 — no chameleon / reincarnation signal.

Safety

4 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 75.0%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 4 vehicle and 4 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

50.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 16.7 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

4 inspections in the charted months · busiest month Jan '25 · 1

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.1 / unit·yr

thin signalabundant signal

Few roadside inspections for a 37-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 37
Inspections · 24 mo: 4
Annualized: ≈2 / yr
Coverage: ≈0.1 inspections / unit · yr

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

393.48 Brakes inoperativeVehicle Maintenance4 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance4 · 1 OOS
393.43 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
390.21 USDOT number marking on vehicleUnsafe Driving2 · 0 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving2 · 0 OOS
393.47 Brake actuators / linings / componentsVehicle Maintenance1 · 0 OOS
393.205 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 0 OOS
393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS
393.78 Windshield wipersVehicle Maintenance1 · 0 OOS
393.81 HornVehicle Maintenance1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & Insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 37
Observed power (24 mo): 4
Trailers (towed): 3

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & Lanes

Revealed by inspection density across 4 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusRegional

revealed

States observed

US states

Inspections · 24 mo

TX busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

CASPER, WY

1030 N POPLAR ST STE A

Top corridor

TX ⇄ WY

TX 1 · OH 1 · OK 1

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & Fraud

Affiliated entities & reincarnation signals · for review, not a verdict

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.

Show all-time history (1 truck · 1 carriers)

Across all inspections on record: USDOT 2040932

Shares a registration email domain with other carriers

@spl-inc.com — 2 carriers: USDOT 2891676

Shares a company officer with other carriers

jeff hibbeler — 2 carriers: USDOT 2891676

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Shared w/ other carriers

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 1030 N POPLAR ST STE A, CASPER, WY, 82601
Mailing address: 2202 TIMBERLOCH PL STE 210, THE WOODLANDS, TX, 77380
Operation: Interstate

Contact

Phone: (337) 258-6511
Fax: (713) 660-8975
Email: nmayeaux@spl-inc.com
Web domain: spl-inc.com

Registration

Officers: Jeff Hibbeler · Nickolas Mayeaux
USDOT / docket: 240804
First registered: Dec 15, 1983
Last MCS-150: Dec 15, 2025 · 1 mi (2024)
FMCSA safety rating: Not rated
D-U-N-S: 26651422

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

No verified reviews yet

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Verification summaryAuthority, insurance, safety and identity facts for SOUTHERN PETROLEUM LABORATORIES INC.

SOUTHERN PETROLEUM LABORATORIES INC (USDOT 240804) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

Its vehicle out-of-service rate was 75.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 4 roadside inspections in the last 24 months — 4 vehicle-level and 4 driver-level — across 4 states, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 1 reportable crash in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.

It reports 37 power units and 39 drivers in its most recent MCS-150 filing dated Dec 15, 2025.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 13, 2026.

Frequently asked

What is SOUTHERN PETROLEUM LABORATORIES INC's USDOT number?

SOUTHERN PETROLEUM LABORATORIES INC's USDOT number is 240804.

Is SOUTHERN PETROLEUM LABORATORIES INC authorized to operate?

As of Jun 13, 2026, SOUTHERN PETROLEUM LABORATORIES INC is active in the FMCSA register.

What is SOUTHERN PETROLEUM LABORATORIES INC's safety record?

SOUTHERN PETROLEUM LABORATORIES INC has a 75.0% vehicle out-of-service rate (national average 22.26%) across 6 roadside inspections, with 1 reportable crash in the last 24 months, and is not currently rated by FMCSA. Vektor does not assign this carrier a safety score: 4 federal roadside inspections in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.

How big is SOUTHERN PETROLEUM LABORATORIES INC's fleet?

SOUTHERN PETROLEUM LABORATORIES INC operates 37 power units and 39 drivers per its most recent MCS-150 filing.

Where is SOUTHERN PETROLEUM LABORATORIES INC based?

SOUTHERN PETROLEUM LABORATORIES INC is based in CASPER, WY, with roadside inspections recorded across 4 states.

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