– see also Petroleum revenue tax

Abandonment

Administration

API, meaning

Appraisal work, meaning

Associated gas, meaning

Blended oil, meaning

Block, meaning

Brent

Contracts

Meaning

British Gas Corporation (BGC) role

British National Oil Corporation (BNOC), role

Butane, meaning

Calorific value, meaning

Capital allowances

Abandonment expenditure

Application

Contributions

Decommissioning

Generally

Industrial buildings allowances

Know-how

Mineral extraction

Oil production sharing contracts

Plant and machinery allowances

Research and development

Transfer of interests in oil fields

Capital gains tax

Chargeable gains

Generally

Losses

Oil companies

Shares in oil companies

Chargeable period, meaning

Condensates

Marketing

Meaning

Corporation tax

Abandonment expenditure

Capital and revenue expenditure

Chargeable gains

Charges

Commencing the trade

Computation of profits

Connected persons

Exploration expenditure supplement

Exploration, appraisal and development expenditure

Extension of UK taxing rights

Field allowances

Generally

Group relief

Information, HMRC's powers

Instalment payments

Interest

Loan relationships, financing costs and income

Losses

Non-resident companies

Oil extraction activities, meaning

Petroleum revenue tax payments, deduction for

Restriction on bareboat charter costs

Ring fence expenditure supplement

Ring fence profits

Sale and lease-back

Separate trades

Supplementary charge for ring fence profits

Crown rights

Crude oil

Marketing

Meaning

Deballasting, meaning

Designated area, meaning

Development

Downstream, meaning

Employment income

Generally

North Sea divers

PAYE

Territorial extent

Equity, meaning

Ethane, meaning

Exploration and appraisal

Farm out/farm in, meaning

Feedstock, meaning

Field, meaning

Flaring, meaning

Fractionation, meaning

Gas, marketing

Generally

Grid spec, meaning

Group relief

History

HMRC's responsibilities

Hydrocarbons, meaning

Initial treatment, meaning

Integrated company, meaning

Jacket, meaning

Licences

Grant and issue

Meaning

Royalties

Scientific research allowances

Types

Unitisation

Liquified petroleum gas (LPG)

Marketing

Meaning

Loan relationships, financing costs and income

Marketing

Condensates

Crude oil

Gas

Generally

Liquefied petroleum gas

Refined products

Megajoule, meaning

Methane, meaning

Nationalised industries, role

Natural gas, meaning

Nature of oil and gas

Non-resident companies

North Sea

Discovery of oil and gas

Fiscal regime, development

Offshore employment intermediaries

Offshore installation

Oil production sharing contracts

Oil, meaning

Operator, meaning

Ownership of petroleum reserves

Participator, meaning

Payback period, meaning

Petrochemical, meaning

Petroleum revenue tax

Petroleum, meaning

Production

Propane, meaning

Refined products, marketing

Refining, meaning

Research and development

Exploration expenditure supplement

Generally

Ring fence expenditure supplement

Responsible person, meaning

Ring fence trade

Capital allowances

Capital and revenue expenditure

Carry-forward of losses

Chargeable gains

Computation of profits

Field allowances

General commissioning expenditure

Generally

Group relief

Interest and charges

Losses

Petroleum revenue tax payments

Sale and lease-back

Sideways relief, restriction

Supplementary charge

Royalties

Scientific research allowances

Spot contract, meaning

Tariff, meaning

Term contract, meaning

Therm, meaning

Topsides, meaning

Transfer pricing

Transportation

Unitisation

Generally

Meaning

Uplift, meaning

Upstream, meaning

Well, meaning

Wellhead value, meaning

Wellhead, meaning