What key terms does section 12 of the Oil Taxation Act 1975 define?

Section 12 defines essential terms for petroleum revenue tax including oil field, participator, licence, licensee, chargeable period, initial treatment, initial storage, production purposes, crude oil, light gases, and royalty. These definitions have specific technical meanings that are narrower than everyday usage and govern the application of PRT throughout Part I of the Act.

Who qualifies as a participator in an oil field under section 12?

A participator includes any current licensee in respect of the field, a former licensee whose licence ended due to a cessation event, a former licensee from the preceding two chargeable periods, a former licensee still holding undisposed oil from the field, and persons involved in default payments or reimbursement expenditure. This ensures PRT obligations continue after licence disposal.

What is the difference between initial treatment and refining under the Oil Taxation Act 1975?

Initial treatment covers basic processing such as making oil safe for storage, separating gas from other oil, liquefying gas for transport, and achieving normal field quality for crude. Refining, which involves further processing into finished petroleum products, is specifically excluded. This distinction matters because initial treatment costs fall within PRT whereas refining costs do not.

How does section 12 define initial storage for petroleum revenue tax purposes?

Initial storage means storing oil won from a field up to a quantity equal to ten times the field's maximum planned or achieved daily production rate. It excludes storage forming part of refinery operations, deballasting, and pipeline conveyance. This defined limit establishes the boundary of storage activities that fall within the PRT regime under United Kingdom law.

Oil Taxation Act 1975 section 12

Interpretation of Part I

Section 12 provides the definitions of key terms used throughout Part I of the Oil Taxation Act 1975, covering petroleum revenue tax.

Defines essential terms such as "oil field", "participator", "licence", "licensee", "chargeable period", "initial treatment", "initial storage", and "production purposes" for the purposes of petroleum revenue tax.
Sets out who counts as a "participator" in an oil field, including current licensees, former licensees who left due to cessation events, those who still hold undisposed oil, and persons involved in default payments — all of whom may have PRT obligations.
Clarifies the boundary between "initial treatment" (which falls within the PRT regime) and "refining" (which does not), and defines what constitutes storage, crude oil, and activities carried out for production purposes.
Provides supplementary rules on asset use in connection with oil fields, activities during the first chargeable period before a field is formally determined, and the treatment of Northern Ireland licences.

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