MARKWEST OKLAHOMA GAS CO., LLC is a pipeline transportation of natural gas employer in MCALESTER, OK. 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 3, 2026.
MARKWEST OKLAHOMA GAS CO., LLC
1/2 MI N, 4 MI W SCIPIO, MCALESTER, OK, 74501
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 OKLAHOMA GAS CO., 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 OKLAHOMA GAS CO., 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
- MarkWest Liberty Midstream & Resources, LLC — Canonsburg, PA — 1 federal record
- Bangluck Market — Los Angeles, CA — 1 federal record
- MPLX G & P — Cadiz, OH — 1 federal record
- MARKWEST HYDROCARBON LLC — KENOVA, WV — 1 federal record
- 60020 - MARKWEST HYDROCARBON LLC — SOUTH SHORE, KY — 1 federal record
- Banglar Tiger Security — SAIPAN, MP — 1 federal record
- TESORO LOGISTICS OPERATIONS LL — VANCOUVER, WA
- MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC — HICKORY, PA
- 68940 - MPLX TERMINALS LLC — LOUISVILLE, KY
- MARKWEST ENERGY PARTNERS, L.P. — CANONSBURG, PA
Other employers in Pipeline Transportation of Natural Gas within OK
- ENOGEX GAS GATHERING, LLC — POCASSET — 1 federal record
- BLUE FOXX, LLC — EDMOND — 1 federal record
- ENOGEX — BUTLER
- DCP MIDSTREAM — THOMAS
- SOUTHERN STAR CENTRAL GAS PIPELINE INC — NARDIN
- ENABLE MIDSTREAM PARTNERS — ELMORE CITY
- ENBRIDGE ENERGY PARTNERS — ELK CITY
- ENABLE MIDSTREAM PARTNERS — RUSH SPRINGS
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 14 years.
Frequently Asked Questions
- What is MARKWEST OKLAHOMA GAS CO., LLC's OSHA violation history?
- MARKWEST OKLAHOMA GAS CO., 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 OKLAHOMA GAS CO., LLC of MCALESTER, OK 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 3, 2026. MARKWEST OKLAHOMA GAS CO., LLC resolves to the parent rollup MPLX LP, which operates 13 establishments in our dataset.
This profile may be incomplete if MARKWEST OKLAHOMA GAS CO., 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.