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Safety scorecard
Years On File: 2015–2026
C
Safety grade
Average
Score: 71/100
Key factors driving the grade
  • 4 workplace accidents reported
  • $1,602 in penalties per on-site worker
  • Recent OSHA inspection (within 12 months)
Years12
Inspections60
Violations80
Serious+0
Penalties$456,460
Accidents4
Summary

Safety record at a glance

Tesoro Refining & Marketing Company Llc is a California-based employer with 60 OSHA inspections on file (covering 2015-2026). Across those inspections, OSHA cited 80 violations, with a total of $456,460 in federal penalties assessed. 4 workplace accidents were reported in connection with these inspections.

Inspection & violation trend

Year-by-year activity, citations issued, and reported workplace incidents.

60Inspections
80Violations
4Accidents
Inspections openedViolations citedSerious / Repeat / WillfulAccidents / injuries reported

Hover any year for detail. Counts reflect inspections, citations, and accidents on file at OSHA — final dispositions and amounts may change after appeals or settlement.

Inspection history

All OSHA inspections at Tesoro Refining & Marketing Company Llc

21 inspections with citations, 39 closed clean or still open. Click any inspection for the full citation list.

With citations or accidents — 21
Citation issuedJul 21, 2025
Safety inspection#348409046
1violation
Penalty assessed$315
Citation issuedJul 10, 2025
Safety inspection#348364217
1violation
Penalty assessed$5,735
Citation issuedApr 3, 2025
Safety inspection#348159872
13violations
Penalty assessed$29,050
Citation issuedFeb 23, 2024
Safety inspection#347320293
1violation
AccidentNov 19, 2023
Safety inspection#347119455
11violations
1accident
Accident-triggered inspection — OSHA opened this case in response to a reported workplace incident.
Penalty assessed$188,000
Citation issuedNov 14, 2023
Safety inspection#347102006
1violation
Penalty assessed$16,285
AccidentOct 24, 2023
Safety inspection#347058216
1accident
Accident-triggered inspection — OSHA opened this case in response to a reported workplace incident.
AccidentMay 4, 2023
Health inspection#346684525
6violations
1accident
Accident-triggered inspection — OSHA opened this case in response to a reported workplace incident.
Penalty assessed$35,350
Citation issuedJan 31, 2023
Safety inspection#346490717
2violations
Penalty assessed$420
Citation issuedSep 26, 2022
Safety inspection#346246366
1violation
Penalty assessed$7,650
Citation issuedJun 27, 2022
Health inspection#346046758
1violation
Penalty assessed$185
Citation issuedJun 20, 2022
Health inspection#346036288
3violations
Penalty assessed$185
Citation issuedAug 2, 2021
Safety inspection#345454110
1violation
Citation issuedJul 7, 2021
Health inspection#345403364
3violations
Penalty assessed$4,800
Citation issuedJan 20, 2021
Safety inspection#345107361
1violation
Penalty assessed$750
Citation issuedMar 7, 2020
Safety inspection#344681051
12violations
Penalty assessed$38,060
Citation issuedFeb 26, 2020
Safety inspection#344654405
12violations
Penalty assessed$119,740
Citation issuedJul 9, 2019
Safety inspection#344136353
4violations
Penalty assessed$1,500
Citation issuedFeb 14, 2019
Safety inspection#343783577
5violations
Penalty assessed$8,435
Citation issuedJan 9, 2019
Safety inspection#343702726
1violation
AccidentNov 18, 2015
Safety inspection#341066397
1accident
Accident-triggered inspection — OSHA opened this case in response to a reported workplace incident.
No violations or still open — 39
Open caseApr 28, 2026
Safety inspection#348906793
Case still open. Citations may follow.
Open caseMar 11, 2026
Safety inspection#348784257
Case still open. Citations may follow.
Open caseMar 5, 2026
Health inspection#348788241
Case still open. Citations may follow.
Open caseNov 17, 2025
Safety inspection#348595810
Case still open. Citations may follow.
No violationsSep 29, 2025
Safety inspection#348531609
Closed Dec 22 — no citations.
No violationsJan 24, 2025
Safety inspection#348016684
Closed Jul 18 — no citations.
No violationsFeb 23, 2024
Safety inspection#347320301
Closed Jul 12 — no citations.
No violationsJul 31, 2023
Safety inspection#346872351
Closed Jan 29 — no citations.
No violationsJul 26, 2023
Safety inspection#346860216
Closed Jan 18 — no citations.
No violationsJun 28, 2023
Health inspection#346807043
Closed Dec 20 — no citations.
No violationsJun 8, 2023
Health inspection#346762156
Closed Nov 29 — no citations.
No violationsJun 8, 2023
Health inspection#346761950
Closed Nov 29 — no citations.
No violationsJun 1, 2023
Safety inspection#346742729
Closed Nov 20 — no citations.
No violationsApr 26, 2023
Health inspection#346667116
Closed Sep 20 — no citations.
No violationsApr 26, 2023
Health inspection#346667124
Closed Sep 20 — no citations.
No violationsApr 20, 2023
Safety inspection#346665557
Closed Oct 2 — no citations.
No violationsJan 19, 2023
Safety inspection#346452634
Closed Apr 14 — no citations.
No violationsNov 7, 2022
Health inspection#346333545
Closed Apr 4 — no citations.
No violationsNov 7, 2022
Health inspection#346333461
Closed Apr 4 — no citations.
No violationsNov 7, 2022
Health inspection#346330038
Closed Apr 4 — no citations.
No violationsOct 14, 2022
Health inspection#346286669
Closed Feb 22 — no citations.
No violationsOct 14, 2022
Safety inspection#346286677
Closed Mar 28 — no citations.
No violationsOct 13, 2022
Safety inspection#346284995
Closed Mar 28 — no citations.
No violationsOct 12, 2022
Safety inspection#346298946
Closed Mar 8 — no citations.
No violationsOct 11, 2022
Safety inspection#346275548
Closed Feb 10 — no citations.
No violationsSep 23, 2022
Safety inspection#346246069
Closed Feb 22 — no citations.
No violationsSep 9, 2022
Safety inspection#346233729
Closed Feb 9 — no citations.
No violationsJul 29, 2022
Health inspection#346114572
Closed Dec 6 — no citations.
No violationsJul 13, 2022
Health inspection#346078413
Closed Nov 9 — no citations.
No violationsJul 19, 2021
Health inspection#345425938
Closed Dec 14 — no citations.
No violationsMay 28, 2021
Safety inspection#345336440
Closed Sep 9 — no citations.
No violationsApr 8, 2021
Safety inspection#345240410
Closed May 10 — no citations.
No violationsFeb 12, 2021
Health inspection#345146278
Closed May 24 — no citations.
No violationsJan 7, 2021
Health inspection#345093868
Closed May 24 — no citations.
No violationsDec 22, 2020
Health inspection#345077648
Closed Jun 8 — no citations.
No violationsJun 15, 2020
Health inspection#344788542
Closed Jul 20 — no citations.
No violationsDec 13, 2018
Safety inspection#343655619
Closed Jun 3 — no citations.
No violationsNov 29, 2017
Safety inspection#342798618
Closed Feb 27 — no citations.
No violationsApr 3, 2017
Safety inspection#342221553
Closed Sep 18 — no citations.
Industry peers

Similar employers in California

Other employers with comparable industry classification or location.

All in this industry →
Methodology

How to read this record

An OSHA inspection record describes federal enforcement activity — it does not capture every workplace safety event at a company. A few caveats:

📅
5-year window

OSHA Violations Tracker indexes inspections opened on or after 2021-01-01. Older history is at OSHA’s establishment search.

🏢
Establishment vs. company

OSHA records are keyed by physical establishment, not parent company. A large employer may operate many sites across states.

Inspection without citation is normal

Many inspections close with no violations — that’s a positive signal, not a missing data row.

💰
Penalties are current assessment

Final amounts may differ after informal conferences or settlement. We show what OSHA has on file today.

Full methodology, scoring details, and known limitations: /methodology.

Frequently asked questions about Tesoro Refining & Marketing Company Llc

Tesoro Refining & Marketing Company Llc earned a C safety grade (71/100) — average. The grade reflects severity of past citations, accident history, and how recent the most-recent inspection is. See the methodology for the full scoring algorithm.

Sources

Cross-check with OSHA directly

All data on this page comes from the U.S. Department of Labor Open Data Portal, which publishes the OSHA Integrated Management Information System (IMIS). For the authoritative record, search OSHA directly: