Jurisdiction(s):
United Kingdom

Related legal acts

Key definition

Upstream definition

What does Upstream mean? In legal practice, “upstream” describes exploration and production (E&P) activities: acquiring rights to search for petroleum, conducting seismic and appraisal, drilling and field development, and producing hydrocarbons to the point of export or entry into midstream infrastructure. It is a widely used commercial and regulatory descriptor rather than a defined statutory term, appearing across contracts, regulatory guidance and transaction documents. Typical upstream documents include petroleum licences and leases, assignments and farm-out agreements, joint operating agreements (JOAs), drilling and oilfield services contracts, security and project finance instruments, and decommissioning arrangements. Key legal issues include title to petroleum in situ and on production,...

UK Oil and Gas: Key Industry Bodies, Codes, Licences and Guidance (including 2024 DESNZ/Ofgem code reforms)

Published by a LexisNexis Energy expert

Practice notes

Industry Bodies and Codes—Oil & Gas Industry Bodies

In March 2024, the Department for Energy Security and Net Zero (DESNZ) and Ofgem opened a consultation on code reforms aimed at delivering more strategic changes across the codes in consumers’ interests. For more information, see: LNB News 11/03/2024 48. In August 2024, Ofgem set out its decision on implementing energy code reform following that consultation, outlining intended next steps for itself and DESNZ. Subsequently, in October 2024, DESNZ and Ofgem issued their joint response to the March 2024 consultation. For more information, see: LNB News 08/10/2024 38.

Body Details

Association of International Energy Negotiators (AIEN) (formerly the Association of International Petroleum Negotiators): an independent, not-for-profit professional membership organisation that supports international energy negotiators globally and promotes their effectiveness and professionalism within the international energy community.
International Association of Oil & Gas Producers (IGOP): the voice of the global Upstream industry, acting as a worldwide partner to regulators to improve safety, environmental and social performance.
National Energy System Operator (NESO): a new industry body created under the Energy Act 2023. NESO...

To view the latest version of this document and thousands of others like it, sign-in with LexisNexis or register for a free trial.

Web page updated on 22/05/2026

Popular documents

Using the Judicial College Guidelines to assess general damages in personal injury claims

When evaluating a general damages claim, the practitioner ought initially to refer to the Judicial College Guidelines (JCG)...

Tomlin orders in England and Wales: CPR guidance on drafting, confidentiality, approval, variation, enforcement, limitation, CCA issues, court-specific requirements, sample wording and precedents

This Practice Note This Practice Note reviews mechanisms used in settling litigation. A Tomlin order consists of a consent order paired with a schedule. It operates to stay proceedings on terms that have been agreed. The provisions contained in the schedule may remain confidential. This Practice Note describes the scope of confidentiality attaching to the schedule and sets out how it differs from a standard consent order. Sample wording for a Tomlin order is included, alongside links to precedents, as well as guidance on court approval. It also addresses varying, setting aside and enforcing a Tomlin order, including the considerations the court will take into account when handling applications for each. Further guidance is provided on interpreting and applying the relevant provisions of the CPR; however, some courts and divisions impose very specific requirements for both drafting and approval, and for approaching the schedule and confidentiality issues. Accordingly, you must consider the particular rules and court guide provisions in the forum where your claim is proceeding when drawing up the Tomlin order...

Precedent: Deed of Surrender of Lease with Optional Premium, Settlement and Release, Landlord, Mortgagee and Guarantor Consents, Reimbursement and HM Land Registry Provisions (England and Wales)

Date [ date ] Parties [ name of Landlord ] [ of OR incorporated in England and Wales (company registration number [ number ]) with its registered office at ] [ address ] (Landlord) [ name of Tenant ] [ of OR incorporated in England and Wales (company registration number [ number ]) with its registered office at ] [ address ] (Tenant) [ [ name of Guarantor ] [ of OR incorporated in England and Wales (company registration number [ number ]) with its registered office at ] [ address ] (Guarantor) ] [ [ name of Mortgagee ] [ of OR incorporated in England and Wales (company registration number [ number ]) with its registered office at ] [ address ] (Mortgagee) ] Definitions Within this Deed, the terms below shall be interpreted as follows: [ Annual Rent • the annual sum reserved under the Lease; ] [ Insurance Rent • the Tenant’s share of the Landlord’s costs of insuring the Property (as set out in the Lease); ] Lease • the lease of the Property dated [ date ], entered into between (1) [ the Landlord OR [ name ...

Precedent Statutory Declaration: Standard Wording under the Statutory Declarations Act 1835

I, [ name ], of [ address ], solemnly and sincerely state that: [ Matters to be verified, set out in numbered paragraphs ] I make this solemn statement in good conscience, believing it to be true, and pursuant to the provisions of the Statutory Declarations Act 1835. DECLARED at [ details ] this [ day ] day of [ month and year ] Before me ................................................................................ [ signature of the person before whom the declaration is made ] A [ commissioner for oaths OR [ solicitor OR [ insert other qualification ] ] authorised to administer oaths ]...