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API Standards Navigator

Use these scope summaries to prepare an RFQ, then confirm the governing edition, addenda, errata and licensing requirements with API and your contract documents.

This navigator does not reproduce standard text and does not establish product certification. An API designation in an RFQ is incomplete until the purchaser defines the current contractual edition and applicable requirements.

API 4F

Drilling and Well Servicing Structures

Reference family for derricks, masts, substructures and related load-bearing drilling or servicing structures.

Define these RFQ fields

  • • structure type and model
  • • rated load and wind conditions
  • • service environment
  • • inspection and documentation requirements
Oilfield Sourcing & Export

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 5CT

Casing and Tubing

Reference family for steel casing, tubing, pup joints, couplings and associated product specification requirements.

Define these RFQ fields

  • • outside diameter and wall thickness
  • • grade and product specification level
  • • connection or thread
  • • length range and quantity
Tubular & Handling Tools

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 6A

Wellhead and Tree Equipment

Reference family for wellhead, tree, valve, spool, flange and pressure-containing production equipment.

Define these RFQ fields

  • • nominal size and working pressure
  • • material and temperature class
  • • PSL and performance requirement
  • • end connections and test documents
Wellhead & Pressure Control

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 7-1

Rotary Drill Stem Elements

Reference family for drill stem components such as rotary connections, drill collars, subs and related drilling elements.

Define these RFQ fields

  • • component type and size
  • • connection designation
  • • material and mechanical properties
  • • inspection and traceability
Drilling & Downhole ToolsTubular & Handling Tools

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 7K

Drilling and Well Servicing Equipment

Reference family for selected drilling and well-servicing equipment including rotary, hoisting and fluid-handling items.

Define these RFQ fields

  • • equipment type and rated capacity
  • • size and interface
  • • service and temperature range
  • • test and certification documents
Mud Pump & Rig Spare PartsDrilling & Downhole Tools

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 8C

Drilling and Production Hoisting Equipment

Reference family for elevators, links, spiders and other hoisting equipment used in drilling and production operations.

Define these RFQ fields

  • • tool type and tubular size
  • • rated load
  • • bore or profile
  • • inspection category and certificates
Tubular & Handling Tools

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 11AX

Subsurface Sucker Rod Pump Assemblies and Components

Reference family for subsurface sucker rod pump assemblies, component dimensions and interchangeability-related purchasing details.

Define these RFQ fields

  • • pump designation and bore
  • • barrel and plunger type
  • • seating assembly
  • • materials and operating conditions
Production & Artificial Lift

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 11B

Sucker Rods and Rod-related Products

Reference family for sucker rods, pony rods, couplings, polished rods and related artificial-lift products.

Define these RFQ fields

  • • rod type and nominal size
  • • grade and material
  • • length and connection
  • • quantity and inspection documents
Production & Artificial Lift

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 11E

Pumping Units

Reference family for surface beam pumping units and the rated structural and reducer information needed for procurement.

Define these RFQ fields

  • • unit designation
  • • polished-rod load
  • • stroke length and strokes per minute
  • • gear reducer rating and motor data
Production & Artificial Lift

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 13A

Drilling Fluids Materials

Reference family for named drilling-fluid materials and the testing or supply information buyers may place in material RFQs.

Define these RFQ fields

  • • material name and grade
  • • required test properties
  • • packaging and batch quantity
  • • certificate and sampling requirements
Solids Control & Mud System

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 16A

Drill-through Equipment

Reference family for blowout preventers, connectors, drilling spools and related drill-through pressure-control equipment.

Define these RFQ fields

  • • equipment type and bore
  • • working pressure
  • • ram or sealing configuration
  • • material, temperature and test records
Wellhead & Pressure Control

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

API 16C

Choke and Kill Equipment

Reference family for choke and kill manifolds, flexible lines, rigid piping, valves, chokes and associated pressure-control assemblies.

Define these RFQ fields

  • • working pressure and nominal bore
  • • layout and valve configuration
  • • temperature and material requirements
  • • connections, testing and documentation
Wellhead & Pressure ControlCementing & Fracturing Equipment

Verify the current edition, addenda, errata, licensing status and contract requirements directly with API before purchase.

Open API source

OILFIELD RFQ

RFQ intake and sourcing pages for oilfield equipment, drilling tools and spare parts.

RFQ Categories

  • Wellhead & Pressure Control
  • Drilling & Downhole Tools
  • Mud Pump & Rig Spares
  • Sourcing & Export

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