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
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Schema
| Field | Type | Values |
|---|---|---|
Licence block id LICBLOCKID | number | 8,898,286 to 20,434,620 |
Quadrant no. QUADNO | string | |
Block no. BLOCKNO | number | 1.00 to 30.00 |
Block suffix BLOCKSUFFI | string | |
Block reference BLOCKREF | string | |
Block start date BLCKSTRTDT | datetime | |
Agreed area (km2) AGREED_KM2 | number | 0 to 245 |
Calculated (actual) area (km2) CALC_KM2 | number | 0 to 245 |
Licence type LICTYPE | string | 1 values: P (698) |
Licence no. LICNO | number | 1 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 | string | 1 values: Extant (698) |
Round type RNDTYPE | string | 2 values: Offshore (650), Restricted Offshore (16) |
Round no. RNDNO | string | |
Location LOCATION | string | 1 values: OFFSHORE (698) |
Licence subtype LICSUBTYPE | string | 6 values: Subtype Unavailable (346), Innovate with either Phase A or Phase B or both (224), Innovate with Phase C only (64)… |
Original datum ORIGIDATUM | string | 1 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 | string | 5 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 | string | 1 values: Y (698) |