Net interest-bearing debt =
Gross interest-bearing debt less cash and cash equivalents.
Net debt to capital employed =
The relationship between net interest-bearing debt and capital employed.
Average capital employed =
Average of the capital employed at the beginning and end of the accounting period. Capital employed is net interest-bearing debt plus shareholders' equity and minority interest.
Return on average capital employed after tax =
Net income plus minority interest and net financial expenses after tax as a percentage of capital employed.
Production costs per barrel oil equivalent =
Operating expenses associated with production of oil and natural gas divided by total production (lifting) of oil and natural gas.
Reserve replacement ratio =
Additions to proved reserves, including acquisitions and disposals, divided by volumes produced.
Barrel of oil equivalent (boe) =
Oil and gas volumes expressed as a common unit of measurement. One boe is equal to one barrel of crude, or 159 standard cubic metres of gas.
Carbon dioxide (CO2) =
Carbon dioxide emissions from Statoil operations embrace all sources such as turbines, boilers, furnaces, engines, flares, drilling of exploration and production wells and well testing/workovers. Reductions in emissions are accumulated for the period 1997-2006.
Total recordable injury frequency =
The number of total recordable injuries per million working hours. Employees of Statoil and its contractors are included.
Serious incident frequency =
The number of incidents of a very serious nature per million working hours. An incident is an event or chain of events which has caused or could have caused injury, illness and/or damage to/loss of property, the environment or a third party.