• NS-1™ & NS-2™ for when you need equipment manufactured and inspected to a higher standard

  • Reducing Non-productive Time - Increasing Performance

  • Manufacturing and Inspection Standards to reduce the risk of equipment failures whilst drilling

  • NS-1™ and NS-2™ Designed to supplement the API standards when conditions warrant it

NS-1™ Standard

NS-1™ - Quality and Inspection Requirements for New and Refurbished Drilling and Well Completion Equipment

NS-1™ was originally developed by Shell over a 10 year period.

In order to maintain the commitment to its development as well as to release it to a larger drilling audience - it was passed over to Fearnley Group who now has full ownership.

It continues to be developed as a top up system to API, to allow rapid response to new types of equipment, new drilling environments and new failure types. This is an important aspect of the NS system, the underlying principle and standards of API and ISO are built into it with additional specifications where necessary.

Available online through the NS Information Hub annual subscribers are supported with update information and the ‘Specifications Help’ which sends an email directly to the technical department.

Any required pages are available to print and use for your selected tasks and you can also guarantee that it is completely up to date with no more need to switch updates in and out of binders.



The NS-1™ Accreditation programme is based on the content of the NS-1™ Standards and assesses the competency of suppliers to provide equipment and services that meet the standards requirements.