Proof of concept. This is an unofficial demo built by Datopian from the North Sea Transition Authority's public data. The official portal is NSTA Open Data. Questions or feedback: hello@datopian.com

UKCS offshore petroleum licence blocks

A Licence is a geographically defined area for prospecting, exploration or extraction of petroleum resources. The North Sea Transition Authority's licensing system covers oil and gas within Great Britain, its territorial sea and on the UK Continental Shelf (UKCS). The Petroleum Act 1998 vests all rights to the nation's petroleum resources in the Crown, but the NSTA can grant licences that confer exclusive rights to 'search and bore for and get' petroleum. Licences fall into several categories. The principal distinctions are between onshore and offshore licences, and between exploration licences (which cover exploration alone) and production licences (which cover both exploration and production). The NSTA has discretion in the granting of licences to help maximise the economic recovery of the UK's oil and gas resources. Licence data is represented by 3 different datasets; Licence. Licence polygons represent the whole licence and have one polygon per licence. Licence Blocks. Licenced Blocks and Sub areas represent finer divisions of these licences and may have many polygons per licence. Sub Areas. Most Licenced Blocks are split with several sub areas, sometimes with differing operators and beneficiaries.

Records
698
Formats
5
Last updated
5 Nov 2026

Download & API

UKCS offshore petroleum licence blocks (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
UKCS offshore petroleum licence blocks (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
UKCS offshore petroleum licence blocks (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
UKCS offshore petroleum licence blocks (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
Licence block id
LICBLOCKID
number8,898,286 to 20,434,620
Quadrant no.
QUADNO
string
Block no.
BLOCKNO
number1.00 to 30.00
Block suffix
BLOCKSUFFI
string
Block reference
BLOCKREF
string
Block start date
BLCKSTRTDT
datetime
Agreed area (km2)
AGREED_KM2
number0 to 245
Calculated (actual) area (km2)
CALC_KM2
number0 to 245
Licence type
LICTYPE
string1 values: P (698)
Licence no.
LICNO
number1 to 2,683
Licence reference
LICREF
string
Licence start date
LICSTARTDT
datetime
Licence initial term end date
INITENDDT
datetime
Licence second term end date
SECENDDT
datetime
Licence end date
LICENDDT
datetime
Licence status
LICSTATUS
string1 values: Extant (698)
Round type
RNDTYPE
string2 values: Offshore (650), Restricted Offshore (16)
Round no.
RNDNO
string
Location
LOCATION
string1 values: OFFSHORE (698)
Licence subtype
LICSUBTYPE
string6 values: Subtype Unavailable (346), Innovate with either Phase A or Phase B or both (224), Innovate with Phase C only (64)…
Original datum
ORIGIDATUM
string1 values: ED 50 (698)
Administrative organisation
ADMORG
string
Admin organisation group
ADMORGGRP
string
Licensee organisation
LICORG
string
Licensee organisation group
LICORGGRP
string
Operator organisation
OPORG
string
Operator organisation group
OPORGGRP
string
NSTA region
REGION
string5 values: Central North Sea (282), Southern North Sea (169), Northern North Sea (148)…
Round start date
RNDSTARTDT
datetime
Round end date
RNDENDDT
datetime
Open data
OPEN_DATA
string1 values: Y (698)