Carrier profile · USDOT 2174677 · MC-755412 · FMCSA data fetched 2026-11-02

WOLF OIL FIELD SERVICES LLC

14 power units6 driversInterstateWEST DES MOINES, IA

Census status Inactive (I)MC-755412 · code A

← Back to overviewAuthority & Insurance · USDOT 2174677

Authority & Insurance

Operating authority by docket

No row matched this USDOT (bare or zero-padded) or its MC numbers. That alone does not prove the company has no authority — check FMCSA.

Source: Motus Carrier – All With History (inys-ebih) · raw queryDataset updated 2026-11-02 10:19 UTCFetched 2026-11-02 21:41 UTC

Authority status history

No authority status-change row matched. That does not prove there were no changes.

Source: Motus AuthHist – All With History (yu5v-wbh6) · raw queryDataset updated 2026-11-02 10:12 UTCFetched 2026-11-02 21:41 UTC

Status and reason text are shown exactly as FMCSA publishes them. The change date is FMCSA's status_change_date; “Dataset updated” is when FMCSA last published the file, and “Fetched” is when VAX read it. The two authority files are shown side by side and are not reconciled by VAX. Amounts: the dictionary says “thousands”, but published values look like dollars, so raw values are shown. Census status is not authority.

Insurance filings

No row matched this USDOT (bare or zero-padded) or its MC numbers. That does not prove the company has no insurance — check FMCSA L&I.

Source: Motus Insur – All With History (c5y8-a4uz) · raw queryDataset updated 2026-11-02 10:07 UTCFetched 2026-11-02 21:41 UTC

Filings as recorded by FMCSA — not a certificate of insurance or proof of current coverage. Amounts are source values (dictionary: thousands).

Source: Motus InsHist – All With History (3uet-3z4i) · raw queryDataset updated 2026-11-02 10:06 UTCFetched 2026-11-02 21:41 UTC

Source: InsHist – legacy (6sqe-dvqs) · raw queryDataset updated 2026-11-02 13:59 UTCFetched 2026-11-02 21:41 UTCFrozen by FMCSA since 2026-05-14

Prior policies

Insurance timeline

Hover a bar for insurer and dates.

Prior policies (3uet-3z4i + legacy 6sqe-dvqs) — effective → cancellation

NATIONAL LIABILITY & FIRE INS CO. · 2015-04-24 → 2015-06-23

NATIONAL LIABILITY & FIRE INS CO. · 2015-01-08 → 2015-05-07

NATIONAL LIABILITY & FIRE INS CO. · 2015-01-08 → 2015-04-24

NATIONAL LIABILITY & FIRE INS CO. · 2014-06-23 → 2015-01-09

NATIONAL INDEMNITY COMPANY · 2013-06-23 → 2014-06-23

NATIONWIDE MUTUAL INSURANCE COMP · 2011-07-13 → 2014-05-07

PINNACLE NATIONAL BANK · 2012-02-16 → 2013-09-21

NATIONAL AMERICAN INSURANCE COMPANY · 2013-04-23 → 2013-06-23

NATIONAL AMERICAN INSURANCE COMPANY · 2012-04-23 → 2013-05-16

NATIONAL AMERICAN INSURANCE COMPANY · 2012-04-23 → 2013-04-23

NATIONWIDE MUTUAL INSURANCE COMP · 2011-07-13 → 2012-04-23

2012201320142015

2011-07-132015-06-23

Bars run only between published effective and cancellation dates. Current filings show their effective date only — no end is assumed and no continuous coverage is inferred. Current history: 3uet-3z4i; legacy rows from 6sqe-dvqs (frozen 2026-05-14) are kept only when not already in the current file.

Insurer	Effective	Cancelled	Method	Policy	Dataset
NATIONAL LIABILITY & FIRE INS CO.	2015-04-24	2015-06-23	Cancelled	73TRB000232	6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.	2015-01-08	2015-05-07	Cancelled	73TRB000232	6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.	2015-01-08	2015-04-24	Replaced	73TRB000232	6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.	2014-06-23	2015-01-09	Cancelled	73TRB000232	6sqe-dvqs
NATIONAL INDEMNITY COMPANY	2013-06-23	2014-06-23	Cancelled	70TRS023434	6sqe-dvqs
NATIONWIDE MUTUAL INSURANCE COMP	2011-07-13	2014-05-07	Cancelled	ACP CIM 7205032175	6sqe-dvqs
PINNACLE NATIONAL BANK	2012-02-16	2013-09-21	Cancelled	755412	6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY	2013-04-23	2013-06-23	Cancelled	OP37440314	6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY	2012-04-23	2013-05-16	Cancelled	OP32760233	6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY	2012-04-23	2013-04-23	Replaced	OP32760233	6sqe-dvqs
NATIONWIDE MUTUAL INSURANCE COMP	2011-07-13	2012-04-23	Replaced	ACP BA 7205032175	6sqe-dvqs

NATIONAL LIABILITY & FIRE INS CO.
Effective
2015-04-24
Cancelled
2015-06-23
Method
Cancelled
Policy
73TRB000232
Dataset
6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.
Effective
2015-01-08
Cancelled
2015-05-07
Method
Cancelled
Policy
73TRB000232
Dataset
6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.
Effective
2015-01-08
Cancelled
2015-04-24
Method
Replaced
Policy
73TRB000232
Dataset
6sqe-dvqs
NATIONAL LIABILITY & FIRE INS CO.
Effective
2014-06-23
Cancelled
2015-01-09
Method
Cancelled
Policy
73TRB000232
Dataset
6sqe-dvqs
NATIONAL INDEMNITY COMPANY
Effective
2013-06-23
Cancelled
2014-06-23
Method
Cancelled
Policy
70TRS023434
Dataset
6sqe-dvqs
NATIONWIDE MUTUAL INSURANCE COMP
Effective
2011-07-13
Cancelled
2014-05-07
Method
Cancelled
Policy
ACP CIM 7205032175
Dataset
6sqe-dvqs
PINNACLE NATIONAL BANK
Effective
2012-02-16
Cancelled
2013-09-21
Method
Cancelled
Policy
755412
Dataset
6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY
Effective
2013-04-23
Cancelled
2013-06-23
Method
Cancelled
Policy
OP37440314
Dataset
6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY
Effective
2012-04-23
Cancelled
2013-05-16
Method
Cancelled
Policy
OP32760233
Dataset
6sqe-dvqs
NATIONAL AMERICAN INSURANCE COMPANY
Effective
2012-04-23
Cancelled
2013-04-23
Method
Replaced
Policy
OP32760233
Dataset
6sqe-dvqs
NATIONWIDE MUTUAL INSURANCE COMP
Effective
2011-07-13
Cancelled
2012-04-23
Method
Replaced
Policy
ACP BA 7205032175
Dataset
6sqe-dvqs

Federal activity

2015-06-23Census
Latest MCS-150 filing
2015-06-236sqe-dvqs
Prior policy ended (cancelled) — NATIONAL LIABILITY & FIRE INS CO.
2015-05-076sqe-dvqs
Prior policy ended (cancelled) — NATIONAL LIABILITY & FIRE INS CO.
2015-04-246sqe-dvqs
Prior policy ended (replaced) — NATIONAL LIABILITY & FIRE INS CO.
2015-01-096sqe-dvqs
Prior policy ended (cancelled) — NATIONAL LIABILITY & FIRE INS CO.
2014-06-236sqe-dvqs
Prior policy ended (cancelled) — NATIONAL INDEMNITY COMPANY
2014-05-076sqe-dvqs
Prior policy ended (cancelled) — NATIONWIDE MUTUAL INSURANCE COMP
2013-10-20Census
Official safety rating: C
2013-09-216sqe-dvqs
Prior policy ended (cancelled) — PINNACLE NATIONAL BANK
2013-08-05Census
Compliance review recorded (C)
2013-06-236sqe-dvqs
Prior policy ended (cancelled) — NATIONAL AMERICAN INSURANCE COMPANY
2013-05-166sqe-dvqs
Prior policy ended (cancelled) — NATIONAL AMERICAN INSURANCE COMPANY
2013-04-236sqe-dvqs
Prior policy ended (replaced) — NATIONAL AMERICAN INSURANCE COMPANY
2012-04-236sqe-dvqs
Prior policy ended (replaced) — NATIONWIDE MUTUAL INSURANCE COMP
2011-07-20Census
Added to FMCSA registration

Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).

Changes observed by VAX monitoring

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Carrier profile · USDOT 2174677 · MC-755412 · FMCSA data fetched 2026-11-02

WOLF OIL FIELD SERVICES LLC

14 power units6 driversInterstateWEST DES MOINES, IA

Census status Inactive (I)MC-755412 · code A

Official links FMCSA SAFER

← Back to overviewAuthority & Insurance · USDOT 2174677

Authority & Insurance

Operating authority by docket

Loading this official source… values are not shown until it answers (not zero).

Authority status history

Loading this official source… values are not shown until it answers (not zero).

Insurance filings

Loading this official source… values are not shown until it answers (not zero).

Filings as recorded by FMCSA — not a certificate of insurance or proof of current coverage. Amounts are source values (dictionary: thousands).

Federal activity

2015-06-23Census
Latest MCS-150 filing
2013-10-20Census
Official safety rating: C
2013-08-05Census
Compliance review recorded (C)
2011-07-20Census
Added to FMCSA registration

Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).

Changes observed by VAX monitoring

Loading…