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Vertical axis in chart corresponds to thousands of barrels of oil per day.

Oil -  fossil oil produced from on and offshore reservoirs, including tight sands/shales; and liquids extracted from gas.

Full breakdowns are available in datafiles.

Vertical axis in chart corresponds to thousands of barrels of oil equivalent per day.

Oil - manufactured oil processed from coal, gas, shale, biomass and as gains in refineries.

Full breakdowns are available in datafiles.

MANUFACTURED OILS

Mined Shale Oils

‘Mined Shale Oils’ are defined as oils that have been, or will be, created after heating and processing shale rock (retorting), extracted from the earth by mining, in a surface industrial plant.

Gas-To-Liquids (GTLs)

‘Gas-to-Liquids (GTLs)’ are defined as oils that have been, or will be, created in a refinery by converting natural gas or other gaseous hydrocarbons into longer-chain gasoline or diesel fuel via direct conversion or via syngas as an intermediate.

Coal-To-Liquids (CTLs)

‘Coal-to-Liquids (CTLs) are defined as oils that have been, or will be, created by coal liquefaction (mainly using the Fischer-Tropsch process). Coal is gasified to make syngas and catalysts convert the syngas into light hydrocarbons which arer processed into gasoline and diesel.

Biomass-To-Liquids (BTLs)

Liquid hydrocarbons that have been, or will be, made from plant materials rather than petroleum products are defined as ‘Biomass-to-Liquids (BTLs).’ Biodiesel BTLs are created when plant oils are combined with alcohol in the presence of a catalyst. Ethanol BTLs are formed during sugar fermentation by yeast of plants, including cellusosic ethanol created directly from woody biomass.

Gains (Refinery)  

Liquid hydrocarbons that have been, or will be, created during refining are defined as ‘Gains (Refinery).’ They represent the increase in volume of refined products compared to an input volume of crude and are not subdivided by country.

FOSSIL OILS

Field Oils

‘Field Oils’ are defined as fossil hydrocarbon liquids that have been, or will be, extracted, naturally or with artificial lift, through wells from an oil, wet gas, or oil and gas field comprising one or more porous and permeable reservoirs.

The oils, including condensates, can exist naturally as a liquid at the wellhead at surface temperatures and pressures. They may also be called conventional oils.

Natural Gas Liquids (NGLs)

‘NGLs’ are defined as light oils or condensates that have been, or will be, recovered in a processing plant from associated gases or free gases that have or will be extracted from a field. NGLs are stable at normal temperatures but the NGLs that are synthesised (propane and butane), called Liquefied Petroleum Gases (LPGs), need pressurised containers for storage.

Shale/Tight Oils (STOs)

‘STOs’ are defined as oils that have been, or will be, extracted through wells, naturally or with artificial lift, from tight (shales, as well as sandstones or carbonates) non-field dispersed reservoirs before or after underground artificial fracturing. They should not be confused with Mined Shale Oils (see below).

Extra-Heavy Oils (from Oil Sands)

Oils including bitumens that have been, or will be, extracted from shallow oil sands (also known as tar sands) through wells (usually with steam) or by mining are defined as ‘Extra-Heavy Oils (from Oil Sands)’. They may be converted to syncrude by chemical processes, making them more convenient to transport and burn.


OIL PRODUCTION PROFILES

Production (Onshore)

Onshore oil production numbers include oils from onshore wells (including those drilled within lakes, swamps and on piers), regardless of subsurface location. Oils from oil sands and manufactured oils are assumed to be of onshore origin (although gas feedstocks may originate from offshore locations).

Production (Offshore, split by water depth)

Offshore oil production numbers include oils from offshore wells (including those drilled from fixed platforms and artificial islands unconnected to the mainland). ‘Very shallow waters’ are defined as output from reservoirs down to 100m, ‘medium shallow waters’ from 100 to 500m, ‘medium deep waters’ from 500 to 1000m, ‘very deep waters’ from 1000 to 2000m, and ‘ultra deep waters’ from greater than 2000m.

Vertical axis in chart corresponds to thousands of barrels of oil per day.

Oil -  fossil oil produced from onshore reservoirs, including tight sands/shales; and liquids extracted from gas.

Full breakdowns are available in datafiles.

Vertical axis in chart corresponds to thousands of barrels of oil equivalent per day.

Oil -  fossil oil produced from offshore reservoirs at selected water depth intervals; and liquids extracted from gas.

Full breakdowns are available in datafiles.

There are 9 oil types (in two groups) recognised, quantified and forecast by Globalshift. These are split onshore, and offshore by water depth

Oils

Gases

Wells

Reserves

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