StatesCalifornia

Mining, Quarrying, Oil & Gas in California

OSHA workplace safety enforcement data for Mining, Quarrying, Oil & Gas employers in California

783
Employers
257
Inspections (pg 1)
645
Violations (pg 1)
$1.6M
Penalties (pg 1)

What the Data Says About Mining, Quarrying, Oil & Gas in California

California has 783 employers in the Mining, Quarrying, Oil & Gas sector (NAICS 21) with OSHA enforcement records. Across the first 50 listings on this page, inspectors documented 257 inspections, 645 violations, and $1.6M in current penalties, averaging 5.1 inspections and 12.9 violations per employer shown.

State-level industry views like this one combine geographic and sectoral risk. Nationally, the Mining, Quarrying, Oil & Gas sector tracks 2,359 employers across all 5,096 inspections with $2K average penalty per inspection. California as a whole, across every industry, has 19,733 tracked employers and $121.6M in total OSHA penalties. Cross-referencing these two slices surfaces the 783 workplaces where sector-specific hazards meet state enforcement priorities.

Records include inspection counts, violation categories (serious, willful, repeat, other-than-serious), and current assessed penalty amounts. All data is pulled from the U.S. Department of Labor's public enforcement database at data.dol.gov and refreshed monthly. Click any employer below to view their full citation history, penalty timeline, and, where applicable, Wage and Hour Division compliance record covering minimum wage, overtime, and related Fair Labor Standards Act enforcement.

Employers

Employer City Inspections Violations Penalty
Molycorp Minerals, LLC Mountain Pass 0 0 $0
Lehigh Southwest Cement Company Cupertino 16 38 $99K
Mmi Services, INC. Bakersfield 3 10 $96K
E & B Natural Resources Management Corporation Bakersfield 3 11 $82K
Greenstone Materials, INC. San Juan Capistrano 3 4 $880
Martin Marietta Northern California Aggregates, LLC. Sanger 3 6 $71K
National Cement Company of California, INC. Lebec 6 10 $70K
HI-Grade Materials CO. Indio 7 17 $62K
U.S. Borax INC. Boron 14 17 $56K
US Mine Corporation Ione 7 32 $54K
Oil Well Service Company Bakersfield 3 13 $52K
MP Mine Operations LLC Mountain Pass 8 37 $51K
Granite Rock Company Aromas 11 22 $51K
Mercer Fraser Company Trinidad 2 7 $43K
Cemex Construction Materials Pacific, LLC Sheridan 2 24 $42K
Synergy Oil & Gas, LLC Long Beach 2 2 $38K
DSS Company Tracy 6 9 $38K
AV Gas Mart Apple Valley 0 0 $0
Bellaire Oil CO. Bakersfield 2 10 $37K
Luciani Pump Company Inc. Healdsburg 0 0 $0
Calportland Company Mojave 10 16 $34K
Syar Industries INC Napa 6 14 $33K
Searles Valley Minerals Trona 7 10 $32K
Hanson Aggregates Sunol 2 19 $31K
Plymouth Sand & Gravel Plymouth 13 17 $30K
Coast Aggregates Palmdale 4 11 $29K
Twin Pines Minerals LLC Ione 2 9 $26K
Aspen Industrial Poway 0 0 $0
Sutton Enterprises Angels Camp 5 11 $26K
Arcosa LWFP, LLC Frazier Park 4 7 $24K
Minnesota Mining & Manufacturing Company Corona 8 31 $24K
Mitsubishi Cement Corporation Lucerne Valley 14 20 $23K
National Cement Company of California Lebec 4 9 $23K
Griffith Company Lebec 14 16 $23K
Bellaire Oil Company Bakersfield 2 9 $23K
Searles Valley Minerals, INC. Trona 3 10 $23K
Butte Sand & Gravel Sutter 5 23 $21K
Northern Aggregates, INC. Willits 4 22 $21K
Macpherson Oil Company LLC Bakersfield 2 4 $20K
Pacific Aggregates INC. Lake Elsinore 9 11 $19K
Robertsons Ready Mix INC Redlands 4 2 $18K
FST Sand & Gravel, INC. Corona 18 56 $18K
California Resources Corporation Taft 3 2 $18K
HI-Grade Materials 29 Palms 4 15 $18K
Canyon Rock CO., INC. Forestville 3 10 $18K
Calmat CO. Napa 2 3 $18K
Pyramid Construction and Aggregates, INC. Heber 1 1 $2K
Paul Graham Drilling and Service CO. Rio Vista 2 5 $16K
True Organic Products, INC Helm 2 5 $16K
Packway Materials, INC. Cassel 2 8 $16K
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Nearby Industries in California

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Explore More Data

Source: OSHA Enforcement Data - U.S. Department of Labor (data.dol.gov)
Source: NAICS Industry Classification - U.S. Census Bureau

Verify against the primary sources: OSHA Establishment Search · DOL Wage & Hour Division