Markwest Keystone Gas Processing Center

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Markwest Oil & Gas Processing Plants

• Markwest Keystone Gas Processing Center

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Summary Information

• Ownership: Markwest
• Website: http://www.markwest.com/
• Location: Butler County, Pennsylvania
• Capacity: 210 MMcf/d

Brief Description

• The centre consists of three cryogenic gas processing plants;
  • Bluestone I with 50 MMcf/d of capacity
  • Sarsen with 40 MMcf/d of capacity
  • Bluestone II with 120 MMcf/d of capacity
• In addition there are 20,000 barrels per day of ethane and heavier fractionation capacity
• Gas can be supplied to the Columbia Gas Transmission Corporation or Texas Eastern Transmission Gas Pipeline
• Ethane is supplied to the Mariner West NGL Pipeline

Related Oil and Gas Fields

• Gas is supplied from the Marcellus Shale Gas Fields

Ongoing Projects

• -

Other Information

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History

• 2012 - Markwest acquired the plant from Rex Energy
• 2014 - Bluestone II came onstream

Relevant Links

1. Markwest Operations Marcellus
2. Rex Energy Corporation Announces Sale of Midstream Assets and Increase in Borrowing Base
3. Enterprise Products Begins Line-Filling ATEX Express Pipeline
4. MarkWest Energy Partners Announces Commencement of Additional Processing and Fractionation Infrastructure in Butler County, PA

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