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

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