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

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