Oil and Gas Regulation in the United Kingdom

Introduction

Oil and gas regulation in the United Kingdom governs the exploration and production of petroleum resources on the UK continental shelf (UKCS). The legal framework is founded on the principle that petroleum belongs to the Crown and that rights to explore and produce petroleum are granted through licences. The primary legislation includes the Petroleum Act 1998, the Energy Act 2016, and the Energy Act 2023. The North Sea Transition Authority (NSTA) — formerly the Oil and Gas Authority (OGA) — is the regulatory body responsible for licensing, regulation, and the promotion of the energy transition.

The Petroleum Act 1998

The Petroleum Act 1998 consolidated earlier legislation on petroleum exploration and production. Section 1 of the Act vests ownership of petroleum in the Crown, providing that petroleum existing in its natural condition in strata is the property of the Crown, and no person may search for or extract petroleum without a licence.

Section 3 of the Act empowers the Secretary of State to grant licences to search for and extract petroleum. The Act provides for model clauses to be incorporated into licences, setting out standard terms and conditions. The model clauses have been updated periodically, and the current standard is the UK Model Clauses for Petroleum Exploration and Production Licences.

Licensing Regime

The NSTA administers the licensing regime under the Petroleum Act 1998. Licences are awarded through competitive rounds, with the NSTA assessing applicants based on their technical competence, financial capacity, and environmental performance. The standard licence is the Seaward Production Licence, which covers three phases: an initial period of exploration, a period of development and production, and a period of continued production.

The NSTA also operates a carbon storage licensing regime under the Energy Act 2008, granting licences for the storage of carbon dioxide in offshore geological formations. The carbon storage licensing regime supports the development of carbon capture and storage (CCS) as part of the energy transition.

The North Sea Transition Authority

The North Sea Transition Authority was established by the Energy Act 2016 as the OGA and renamed in 2023 to reflect its expanded role in the energy transition. The NSTA is a government company with statutory functions under the Petroleum Act 1998, the Energy Act 2016, and the Energy Act 2023.

The NSTA’s principal objective is to promote the maximum economic recovery of petroleum from the UKCS, while also supporting the transition to net zero. The NSTA has a range of regulatory powers, including the power to: issue sanctions for field development plans and field abandonment programmes; approve the transfer of licence interests; issue dispute resolution and dispute avoidance directions; and require operators to provide information.

The NSTA exercises its powers in accordance with the MER UK Strategy — the Maximising Economic Recovery Strategy for the UK. The strategy requires licence holders to take all reasonable steps to maximise the economic recovery of petroleum, to collaborate with each other, and to consider the development of infrastructure for carbon capture and storage and hydrogen production.

Field Development and Approval

Before developing an oil or gas field, the licensee must submit a Field Development Plan (FDP) for approval by the NSTA. The FDP sets out the proposed development concept, the technical and commercial basis for the project, the production profile, and the decommissioning arrangements.

The NSTA may approve, reject, or require modifications to the FDP. The NSTA considers whether the FDP is consistent with the MER UK Strategy, whether it represents the best economic use of the resource, and whether the licensee has the technical and financial capability to execute the plan. Unapproved development is unlawful and may result in enforcement action.

Decommissioning

The decommissioning of oil and gas infrastructure is regulated under the Petroleum Act 1998, Part 4. Operators must submit a Decommissioning Programme for approval by the NSTA before any decommissioning activity. The programme must set out the proposed method of decommissioning, the estimated costs, and the arrangements for funding.

The NSTA’s approval of a decommissioning programme is required before the operator may proceed. The NSTA may impose conditions on the approval and may require the operator to provide financial security for the decommissioning obligations. After decommissioning, the operator must provide a post-decommissioning report confirming that the work has been completed.

Environmental Regulation

Oil and gas operations on the UKCS are subject to extensive environmental regulation. Operators must obtain environmental permits under the Environmental Permitting (England and Wales) Regulations 2016 (or equivalent Scottish and Northern Irish regulations). Offshore operations require consent under the Offshore Petroleum Production and Pipe-lines (Assessment of Environmental Effects) Regulations 1999 and the Merchant Shipping (Oil Pollution Preparedness, Response and Co-operation) Regulations 1998.

The Energy Act 2023 introduced provisions for the regulation of offshore carbon storage, hydrogen production, and other low-carbon activities, extending the NSTA’s remit beyond oil and gas to support the energy transition.

Conclusion

Oil and gas regulation in the United Kingdom provides a comprehensive framework for the licensing, development, and decommissioning of petroleum resources on the UKCS. The NSTA plays a central role in regulating the industry, promoting maximum economic recovery, and supporting the transition to net zero through the development of carbon storage and other low-carbon technologies.