Carrier profile · USDOT 1283456 · MC-499964 · Updated Jun 13, 2026

GREGORY L SPIERING

DBA SPIERING TRUCKING

2 power unitsLocal · 1 statesESTELLINE, SD50/100

CARRIER ACTIVEMC-499964 ACTIVERATED SATISFACTORY

Authority & Insurance

Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.

Operating authority· 49 CFR · per type

Operating authority

Common: None
Contract: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed · 4 insurers · 0 lapsesInsurer churn

Great West’04–’07

Sentry Select’07–’09

United Financial’11–’22

beyond this history

2004201020162022now

Shorter eras are too brief to label at this scale — all 5 insurers are named in the list below.

BIPD in force — $1,000,000 · GREAT WEST CASUALTY CO. · since May 2022

All 5 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
UNITED FINANCIAL CASUALTY COMPANY	Sep 2011 → Jun 2022	$750K	4
MAXUM CASUALTY INSURANCE COMPANY	Sep 2010 → Sep 2011	$750K	1
GREAT WEST CASUALTY CO.	Sep 2009 → Sep 2010	$750K	1
SENTRY SELECT INSURANCE COMPANY	Sep 2007 → Sep 2009	$750K	1
GREAT WEST CASUALTY CO.	Sep 2004 → Sep 2007	$750K	1