Well data

Here you will find links to various well data held by the NSTA.

Individual well data

Use the Well Data Search Tool to find basic well header data by quadrant and block (please note that this data is derived directly from WONS (the Well Operations Notification System on the Energy Portal) and may be subject to later alteration and update).

Data requirements

Data collection starts once a well has been spudded when the operator submits a spud notification on WONS. The NSTA will issue an official well number via WONS (see PON 12), which is to be used for all data and records resulting from the well’s drilling.

All well data requirements are set out in the documents PON 9 (offshore) and PON 9b (onshore). 

Onshore operators have a statutory obligation to also supply well data to the British Geological Survey (BGS). Visit the BGS website for more information.

Well Approval process

Information on how to use the Energy Portal to apply for consent to drilling operations via the WONS system 

UKCS Suspended Well Stock

Offshore petroleum licensees must decommission wells in a timely and cost-efficient way, in accordance with their licence and other statutory obligations. Please click here to find out more including a downloadable spreadsheet of the current suspended well stock 

Drilling activity

The following data will allow you to search for information about current drilling activity, as well as details of drilling activity that has already taken place – by year and by basin.



Current drilling

Stratigraphy and lithology data

The following data has been provided by licence operators to the NSTA and is released four years in arrears. Please note that while every care is taken to ensure the information is correct and up-to-date, the NSTA does not guarantee its accuracy. Anyone relying on the information does so at their own risk.