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

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