This guide covers the gating requirements, site-specific permits and major-hazard controls that sit on top of the workplace spine. Whether you extract crude oil (06.10) or natural gas (06.20), the regimes are the same — they apply by installation type, location (onshore or offshore) and inventory threshold, not by commodity.
A. Hold a petroleum production licence
Rights to the UK's petroleum are vested in the Crown. You must hold a licence to search and bore for and get petroleum. This is the gating requirement — without it, extraction is unlawful.
B. Offshore: prepare and maintain an accepted safety case
Operators and owners of offshore oil and gas installations in UK waters must prepare and have accepted a safety case demonstrating control of major-accident hazards. This is the offshore equivalent of the onshore COMAH regime. Onshore extraction does not engage it.
C. Onshore: meet your COMAH duties if you hold qualifying inventories
Onshore oil terminals, gathering stations, well sites and gas-processing facilities holding qualifying quantities of named dangerous substances become lower-tier or upper-tier COMAH establishments. Upper-tier operators must prepare a safety report and on-site and off-site emergency plans and notify the Competent Authority (HSE jointly with the relevant environment agency — the Environment Agency in England, Natural Resources Wales in Wales, SEPA in Scotland). COMAH does not apply offshore — the safety-case regime covers major-accident hazards there. In Northern Ireland, the COMAH Regulations (Northern Ireland) 2015 apply.
D. Onshore: hold an environmental permit for your installation
Onshore oil and gas extraction and associated processing — including any shale-gas operation and its mining-waste and groundwater activities — require an environmental permit. This is distinct from the mining-waste permits for solid-mineral extraction: upstream installations are regulated as permitted installations.
E. Offshore: hold an OPRED oil-pollution permit
Discharges of oil (including condensate and produced water) from offshore installations and wells require a permit from OPRED. This regime is engaged only by offshore activity; onshore installations are permitted under the Environmental Permitting Regulations instead.
F. Meet your upstream petroleum taxation obligations
Companies extracting UK and UK Continental Shelf oil and gas are taxed on ring-fenced upstream profits. The regime is administered by HMRC.
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1. Hold a petroleum production licence from the NSTA
The gating requirement. Without it, extraction is unlawful. Offshore licensing is NSTA UK-wide; onshore licensing is devolved.
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2. If offshore: prepare and maintain an accepted safety case
Demonstrate control of major-accident hazards under the offshore safety-case regime.
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3. If onshore and holding qualifying inventories: meet your COMAH duties
Lower-tier or upper-tier duties depending on inventory thresholds.
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4. Hold the environmental and oil-pollution permits for your sites
Onshore env permit from the Environment Agency; offshore oil-pollution permit from OPRED.
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5. Register for upstream petroleum taxation
Ring-fence corporation tax, supplementary charge and Energy Profits Levy via HMRC.
What to do next
With the licences, permits and major-hazard duties in place and the workplace spine operating, confirm the whole picture with the petroleum extraction compliance checklist. Start from the router if you are not sure which guides apply to you.
Legal basis
Primary legislation and key regulations
Official guidance
NSTA: licensing (opens in a new tab)
www.nstauthority.co.uk
HSE: offshore (opens in a new tab)
HSE
HSE: COMAH (opens in a new tab)
HSE
Flaring and venting (opens in a new tab)
NSTA
Consents (opens in a new tab)
NSTA
NSTA Licensing and Consents Overview (opens in a new tab)
www.nstauthority.co.uk
HSE Offshore: Structural integrity (opens in a new tab)
HSE
OMAR Operations and Guidance (opens in a new tab)
HSE
Reporting of offshore oil and gas incidents (opens in a new tab)
HSE
Offshore health and safety law (opens in a new tab)
HSE