MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC is a pipeline transportation of natural gas employer in HICKORY, PA. Federal records show 1 OSHA inspection with 0 violations 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 2, 2026.
MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC
185 AVELLA ROAD, STEWART COMPRESSOR STATION, HICKORY, PA, 15340
Parent: MPLX LP (13 locations)
486210 — Top companies in Pipeline Transportation of Natural Gas
Data Insights
Inspection Breakdown
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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
MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC is one of 13 establishments in our dataset that roll up under the parent organization MPLX LP. MPLX LP is a SEC public reporter (MPLX), with most recent reported revenue of $13.0B.
Federal enforcement records on MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC represent activity at this specific establishment. The full enforcement footprint of MPLX LP across all 13 of its tracked locations is viewable on the parent profile.
Other establishments operated by MPLX LP
- Bangluck Market — Los Angeles, CA — 1 federal record
- MARKWEST HYDROCARBON LLC — KENOVA, WV — 1 federal record
- MPLX G & P — Cadiz, OH — 1 federal record
- Banglar Tiger Security — SAIPAN, MP — 1 federal record
- 60020 - MARKWEST HYDROCARBON LLC — SOUTH SHORE, KY — 1 federal record
- MarkWest Liberty Midstream & Resources, LLC — Canonsburg, PA — 1 federal record
- TESORO LOGISTICS OPERATIONS LL — VANCOUVER, WA
- 68940 - MPLX TERMINALS LLC — LOUISVILLE, KY
- MARKWEST ENERGY PARTNERS, L.P. — CANONSBURG, PA
- MARKWEST OKLAHOMA GAS CO., LLC — MCALESTER, OK
Other employers in Pipeline Transportation of Natural Gas within PA
- AMERIGAS — SINKING SPRING — 2 federal records
- NATIONAL FUEL GAS SUPPLY CORPORATION — CLAYSVILLE — 1 federal record
- MICHELS PIPELINE CONSTRUCTION A DIVISION OF MICHELS CORPORATION — DELMONT — 1 federal record
- LAUREL MOUNTAIN MIDSTREAM, LLC. — WAYNESBURG — 1 federal record
- AMERIGAS — AMBRIDGE — 1 federal record
- INDEPENDENT ENTERPRISES INC. — PITTSBURGH — 1 federal record
- EQUITABLE GAS COMPANY — PITTSBURGH — 1 federal record
- KINDER MORGAN LIQUIDS TERMINALS, LLC — PHILADELPHIA — 1 federal record
- NORTHERN PIPELINE — WASHINGTON
- SKODA CONTRACTING — ALLENTOWN
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 15 years.
Frequently Asked Questions
- What is MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC's OSHA violation history?
- MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC has 1 OSHA inspection on record with 0 violations and $0 in total penalties.
About this data
This profile aggregates federal enforcement records on MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC of HICKORY, PA from 17 federal data sources. Records were found in 2 sources: OSHA workplace safety inspections, and SEC XBRL companyfacts (parent financials). The remaining 15 sources were checked and found no matching records: WHD, MSHA, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement, BLS.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 2, 2026. MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC resolves to the parent rollup MPLX LP, which operates 13 establishments in our dataset.
This profile may be incomplete if MARKWEST LIBERTY MIDSTREAM & RESOURCES 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.