Carrier profile · USDOT 513285 · MC-261069 · Updated Jun 13, 2026
H Thornburg and J Thornburg
DBA H THORNBURG AND SON TRUCKING
2 power unitsHOWIE, OK50/100
CARRIER INACTIVEMC-261069 INACTIVE
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
- Inactive
- Broker
- None
Insurance & bonds
BIPD filing (census)Not recorded per census
Cargo filing (census)Not recorded per census
Surety bond (census)Not recorded per census
Insurance continuity· insurer · policy · lapses
$750K BIPD last filed ’01 · 4 insurers · 0 lapsesInsurer churn
beyond this history
1993200220112020now
Shorter eras are too brief to label at this scale — all 4 insurers are named in the list below.
This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here.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.
All 4 insurer eras · dates, limits, renewals
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| CLARENDON NATIONAL INS. CO. | Oct 1999 → Feb 2001 | $750K | 1 |
| ACCELERATION NATIONAL INSURANCE CO. | Sep 1997 → Oct 1999 | $750K | 2 |
| CHATHAM REINSURANCE CORPORATION | Sep 1997 → Sep 1997 | $750K | 1 |
| UNITED SOUTHERN ASSURANCE CO. | Apr 1993 → Sep 1997 | $750K | 3 |