Operator · Marcellus Shale
Mountaineer Keystone LLC
Acquired in August 2017 by Arsenal Resources. The snapshot below reflects historical activity.
About
Exploration & Production
- WebsiteVisit →
- AddressWexford Pennsylvania
- Phone724 940 1100
- Acquired byArsenal Resources
- People on file10 contacts
Acquisition chain
Forward & backward M&A lineage
- Great Western Petroleum LLC
- PDC Energy, Inc.
- Mountaineer Keystone LLC (this company)
Drilling activity
Recent rig presence by basin
Recent activity

Mountaineer Keystone Changes Name to Arsenal Resources
Marcellus-focused Mountaineer Keystone has changed its name to Arsenal Resources.

Utica Update: First Quarter 2013 Well Permit Growth
Shale Experts is pleased to report the Utica-Point Pleasant Shale permit update for March 2013, including highlights from BP, PDC Energy and more.
Crestwood Midstream, Mountaineer Keystone Develop Marcellus Shale Gathering System
Crestwood Midstream Partners signed a memorandum of understanding with Mountaineer Keystone LLC , to construct a 42 mile 16" natural gas gathering system (the Tygart Valley Pipeline) to...
Deals
Filter: Marcellus Shale
Closing Announcement - October 15, 2014 PDC Energy, Inc. has closed the sale of its fifty percent interest in PDC Mountaineer LLC (PDCM), a…
Permits
Filter: Marcellus Shale
No active permits in Marcellus Shale
Operations transferred to Arsenal Resources. Live permits sit under the successor.
Assets
Filter: Marcellus Shale