How many employees work at MarkWest Energy Partners?
MarkWest Energy Partners LP has 707 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -0.1%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About MarkWest Energy Partners
MarkWest Energy Partners, L.P. (MarkWest) is a master limited partnership engaged in the gathering, transportation, and processing of natural gas; the transportation, fractionation, marketing, and storage of natural gas liquids; and the gathering and transportation of crude oil. MarkWest has extensive natural gas gathering, processing, and transmission operations in the southwest, Gulf Coast, and northeast regions of the United States. MarkWest is a wholly owned subsidiary of MPLX LP, which is the master limited partnership formed by Marathon Petroleum Corporation.
As of December 2025
MarkWest Energy Partners
workforce metrics
Headcount
707
Avg. Salary
$91.6k
Tenure
8.1yr
Growth Rate
-0.1%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of MarkWest Energy Partners annual worldwide employee count from 2023 to 2025.
- MarkWest Energy Partners total number of employees in 2025 was 707, a 0.1% decline from 2024.
- MarkWest Energy Partners total number of employees in 2024 was 708, a 1.3% decline from 2023.
- MarkWest Energy Partners total number of employees in 2023 was 717, a 2.9% decline from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of MarkWest Energy Partners annual active job postings from 2023 to 2025.
- MarkWest Energy Partners active job postings in 2025 was 0, a 0% no change from 2024.
- MarkWest Energy Partners active job postings in 2024 was 0, a 0% no change from 2023.
- MarkWest Energy Partners active job postings in 2023 was 0, a 0% no change from 2022.
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Employee Sentiment
Sentiment Topics
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