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UKCS blocks

UKCS all blocks (reference dataset)

Records
7,266
Formats
5
Last updated
27 Jan 2026

Download & API

UKCS blocks (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
UKCS blocks (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
UKCS blocks (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
UKCS 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
Block reference
BLOCK_REF
string
Quadrant number
QUADRANT
string
Block number
BLOCK_NO
string
Block suffix
BLOCKSUFF
string2 values: a (26), b (22)
Location
TYPE
string2 values: OFFSHORE (4,157), ONSHORE (3,109)
Original datum
SOURCE_SRS
string3 values: OSGB NATIONAL GRID (3,109), ED 50 (2,216), ETRS89 (1,941)