1 (833) 852-8900 info@jaoilfield.com


Manufacturing, Rental, and Repair

We make dumb irons do intelligent work

JA Oilfield Manufacturing, Inc. maintains a plant for the repair of down-hole tools in Oklahoma City, OK.

We utilize stringent quality control procedures and modern machining techniques. We are continuously seeking improvements to quality and reliability of our manufacturing and repair work to exceed API Certification and recognized industry standards.

shop working operating machine

Manufacturing Equipment

Our array of equipment for repairs and product manufacturing include the following.

Doosan CNC machine

Doosan CNC

EC1600 milling machine

EC1600 Machining Mill

Weiler E90 lathe

Weiler E90 Lathe

Sub Arc machine

Sub Arc Automatic Welding

BHA Rentals

JA Oilfield is a One-Stop Shop for your Drilling Bottomhole Assembly (BHA) critical drillstring components. We have large inventories of the following essential BHA components in various sizes ready to deploy:

  • Drilling Motors
  • Drilling Jars
  • Shock subs
  • Roller Reamers (Sealed and Mud Lubed)
  • Stabilizers
  • Cross-overs
  • Drillable Lift Subs
  • Flex Collars
  • Non-mag Collars
  • Heavy-weight Drillpipe

See out latest drilling tools designed and engineered to set new drilling performance standards.

drilling tools on a rack

Tool Repair Capabilities



Kellys, collars and drill pipe


Turning Down O.D.


Re-cutting and changing connections


Machine Shop


Machining O.D.

Slips and elevators




Replacing Kelly Ends


Hard band application

On location or offshore!


Build Up


Refacing Shoulders and Chasing Threads Kelly Saver Sub Rubber Replacement


Hardness Testing


Junk Basket Replacement


Saw Cutting


Inspection Services


Rental Services


Plasma Transfer ARC

Since opening shop in 1980, JA Oilfield Manufacturing, Inc. has repaired and serviced oilfield equipment with one goal:

To carry out the best repair and manufacturing work, backed with our guarantee of prompt service at the most competitive prices.