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

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