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Prime Downhole Manufacturing

Prime Downhole Manufacturing is a Houston, Texas-based provider of engineering and precision machining services to the Oil & Gas industry, with a focus today on downhole products. Prime began operations in late 2015 and the Company’s current product offerings include contract machining of downhole tools and the manufacturing of bearings, PDC bits, and eccentric and concentric reamers. Prime also manufactures and repairs breakout machines and bucking units for assembling and disassembling threaded connections. Prime’s customer base includes onshore and offshore oilfield service (OFS) providers.

https://vikingpt.com/
Initial Investment: 2018
Realized Date: December 2025
  • Nadel and Gussman NV, LLC
  • Midway Energy Partners
  • UpCurve Energy
  • Mavros Minerals
  • Crown Oil Partners IV/ BC Operating
  • Rimrock Resource Operating
  • Ichthys Energy Partners
  • Balcones Energy Holdings
  • Quantent Energy Partners, LLC
  • SandRidge Energy, Inc.
  • Black Oak Resources, LLC
  • Breitburn Energy Partners L.P.
  • Cornerstone Petroleum Resources
  • Chaparral Energy
  • Tiburon Oil & Gas Partners, LLC
  • PetroEdge Energy IV
  • Core Minerals Management II
  • Permian Resources
  • UpCurve II
  • Tri-C Energy Partners, LLC
  • PetroEdge Energy III
  • Post Oak Minerals I
  • Refinery Specialties, Inc.
  • Crown Oil Partners VI/ BC Operating
  • Oryx Midstream Services II
  • Layne Water Midstream
  • Post Oak Minerals II
  • RAM Energy Resources
  • Atlas Energy Resources, LLC
  • Bayou Well Services
  • Post Oak Minerals III
  • Linn Energy, LLC
  • Switchgrass E&P, LLC
  • Maverick Brothers Energy
  • Sierra EF, LP
  • Richland-Stryker Generation, LLC
  • Petro Peak Energy
  • Prime Downhole Manufacturing
  • Crown Oil Partners V/ BC Operating
  • National Specialty Alloys
  • Double Eagle Energy Permian
  • Broken Oak Investments LLC
  • Mavros Minerals II
  • Moriah Henry Partners
  • Post Oak Minerals V
  • CPX Piceance, LLC
  • EV Energy Partners
  • Oryx Midstream Services

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