This employer's most recent OSHA inspection was in 2016. This data may not reflect current safety conditions.

Tesoro Refining and Marketing Safety Record

Martinez, CA · Manufacturing

B

Historical grade based on past OSHA records. This employer has not been inspected in over 10 years.

Last inspected 08/29/2016

Based on public OSHA records. How is this calculated? · Data updated March 2026

According to OSHA enforcement records, Tesoro Refining and Marketing in Martinez, California has 23 workplace safety violations across 40 inspections, with 4 classified as serious and $92,485 in total penalties. Safety grade: B. OSHA records span 1998 to 2016.

Tesoro Refining and Marketing, located in Martinez, California, was last inspected by OSHA in 2016. While this employer's safety record is based on historical data that may not reflect current workplace conditions, the OSHA enforcement history remains part of the public record. Of the 23 violations on file, 4 were classified as serious — meaning OSHA determined they could cause death or serious physical harm to workers. Total penalties assessed were $92,485.

OSHA's enforcement records are maintained by the U.S. Department of Labor and cover workplace inspections dating back to the 1970s. An employer's safety grade is calculated using a weighted formula that accounts for the severity of violations — willful violations carry the highest weight (5x), followed by repeat (4x), serious (3x), and other (1x) violations per inspection. Learn more about how safety grades are calculated.

23 Violations
40 Inspections
4 Serious
$92,485 Penalties
Other-than-Serious?
19 ($54,885)
Serious?
4 ($37,600)
5189. F01 OSHA Standard
Cited in 4 inspections (4 total) since 2006
3308. OSHA Standard
Cited in 2 inspections (2 total) since 2014
3382. A OSHA Standard
Cited in 2 inspections (2 total) since 2006
OSHA initially proposed $140,230 in penalties for Tesoro Refining and Marketing, later reduced to $92,485 — a 34% reduction through informal settlement or contest. Learn how OSHA penalties work.
5189. F01 OSHA Standard
4 citations $14,375
5189.(M)( OSHA Standard
2 citations $1,270
3382. A OSHA Standard
2 citations $14,650
3308. OSHA Standard
2 citations $14,000
6862. OSHA Standard
1 citation $635
DateTypeLocationViolationsPenalties
08/29/2016 Planned? Martinez, CA 10 $46,475
06/15/2015 Unprogrammed Related? Martinez, CA 0 $0
02/06/2015 Referral? Martinez, CA 0 $0
10/27/2014 Unprogrammed Related? Martinez, CA 0 $0
10/07/2014 Planned? Martinez, CA 0 $0
06/27/2014 Planned? Martinez, CA 6 $30,360
02/25/2014 Unprogrammed Related? Martinez, CA 0 $0
09/04/2013 Referral? Martinez, CA 2 $750
01/30/2013 Planned? Martinez, CA 0 $0
12/10/2012 Unprogrammed Related? Martinez, CA 0 $0
09/26/2012 Unprogrammed Related? Martinez, CA 0 $0
10/10/2011 Unprogrammed Related? Martinez, CA 0 $0
09/30/2010 Complaint? Martinez, CA 2 $0
11/03/2009 Complaint? Martinez, CA 0 $0
09/05/2008 Planned? Martinez, CA 0 $0
02/08/2008 Planned? Martinez, CA 0 $0
09/17/2007 Complaint? Martinez, CA 0 $0
08/09/2007 Unprogrammed Related? Martinez, CA 0 $0
07/12/2007 Accident? Martinez, CA 0 $0
07/09/2007 Planned? Martinez, CA 0 $0
04/26/2007 Unprogrammed Related? Martinez, CA 0 $0
04/26/2007 Unprogrammed Related? Martinez, CA 0 $0
04/26/2007 Unprogrammed Related? Martinez, CA 0 $0
03/21/2007 Unprogrammed Related? Martinez, CA 0 $0
01/05/2007 Complaint? Martinez, CA 0 $0
11/29/2006 Planned? Martinez, CA 0 $0
11/28/2006 Planned? Martinez, CA 0 $0
03/27/2006 Complaint? Martinez, CA 0 $0
01/29/2006 Accident? Martinez, CA 2 $14,000
10/05/2004 Planned? Martinez, CA 0 $0
09/16/2004 Referral? Martinez, CA 0 $0
04/19/2004 Unprogrammed Related? Martinez, CA 0 $0
12/18/2003 Unprogrammed Related? Martinez, CA 0 $0
02/03/2003 Programmed Related? Martinez, CA 0 $0
09/30/2002 Unprogrammed Related? Martinez, CA 0 $0
09/13/2002 Unprogrammed Related? Martinez, CA 0 $0
05/24/2002 Accident? Martinez, CA 1 $900
05/23/2002 Complaint? Martinez, CA 0 $0
03/27/2001 Unprogrammed Related? Martinez, CA 0 $0
01/13/1998 Referral? Martinez, CA 0 $0

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