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B
Billion

Bbl(s)
Barrel(s) of oil. The standard barrel of crude oil or other petroleum product is 42 US gallons (34.972 Imperial gallons or 158.987 Litres).

Bbls/d
barrels per day

Bcf
One billion cubic feet of gas

Bcfe
One billion cubic feet of gas equivalent

Bcm
Billion cubic metres

BOE
Barrels of oil equivalent

Boepd
Barrels of oil equivalent per day

Bopd
Barrels of oil per day