DIAMOND OIL & GAS LLC is a pipeline transportation of crude oil employer in CASPER, WY. Federal records show 1 OSHA inspection with 1 violation and $0 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 3, 2026.
DIAMOND OIL & GAS LLC
1474 WILLER DRIVE, CASPER, WY, 82604
Parent: QUANTUM CORP /DE/ (1,580 locations)
486110 — Top companies in Pipeline Transportation of Crude Oil
Data Insights
Inspection Breakdown
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▶SEC Enforcement(1)
$5,000,000 totallast: 2014-01-09
SEC Enforcement(1)
SEC Litigation Releases filed against QUANTUM CORP /DE/— every public-company employer profile shows the parent's SEC enforcement history. Source: sec.gov/litigation/litreleases.
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
DIAMOND OIL & GAS LLC is one of 1,580 establishments in our dataset that roll up under the parent organization QUANTUM CORP /DE/. QUANTUM CORP /DE/ is a SEC public reporter (QMCO), with most recent reported revenue of $274M.
Federal enforcement records on DIAMOND OIL & GAS LLC represent activity at this specific establishment. The full enforcement footprint of QUANTUM CORP /DE/ across all 1,580 of its tracked locations is viewable on the parent profile.
Other establishments operated by QUANTUM CORP /DE/
- DIAMOND CHEMICAL COMPANY, INC. — EAST RUTHERFORD, NJ — 3 federal records
- DIAMOND WIRE SPRING COMPANY — PITTSBURGH, PA — 3 federal records
- DIAMOND SAND AND GRAVEL INC — SPARTA, NJ — 3 federal records
- Diamond Equipment Contracting Corporation — VIRGINIA BEACH, VA — 2 federal records
- Diamond D General Engineering — Woodland, CA — 2 federal records
- DIAMOND CRYSTAL BRANDS, INC — PERRYSBURG, OH — 2 federal records
- Diamond Trucking — Peru, IN — 2 federal records
- Diamond Transportation — Springfield, VA — 2 federal records
- DIAMOND PALACE HOTEL AND CASINO CORP — SAN JUAN, PR — 2 federal records
- DIAMOND CORING COMPANY, INC. — PALATINE, IL — 2 federal records
Other employers in Pipeline Transportation of Crude Oil within WY
- TRUE OIL — MOORCROFT — 1 federal record
- ROARING FORK MIDSTREAM LLC — CHEYENNE
- TRUE OIL — CHEYENNE
- ANSCHUTZ EXPLORATION CORPORATION — DOUGLAS
- SINCLAIR PIPELINE COMPANY, LLC — CASPER
- ROARING FORK MIDSTREAM LLC — CHEYENNE
Activity timeline
Frequently Asked Questions
- What is DIAMOND OIL & GAS LLC's OSHA violation history?
- DIAMOND OIL & GAS LLC has 1 OSHA inspection on record with 1 violation and $0 in total penalties.
About this data
This profile aggregates federal enforcement records on DIAMOND OIL & GAS LLC of CASPER, WY from 17 federal data sources. Records were found in 3 sources: OSHA workplace safety inspections, SEC Litigation Releases, and SEC XBRL companyfacts (parent financials). The remaining 14 sources were checked and found no matching records: WHD, MSHA, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, BLS.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 3, 2026. DIAMOND OIL & GAS LLC resolves to the parent rollup QUANTUM CORP /DE/, which operates 1,580 establishments in our dataset.
This profile may be incomplete if DIAMOND OIL & GAS LLCoperates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.