Commonly Used Units


b/d	barrels per day	MMbbl	million barrels per day
MMcf/d	million cubic feet per day	Bcf	billion cubic feet
Tcf	trillion cubic feet	MMcm/d	million cubic metres per day
Bcm	billion cubic metres	boe/d	barrel of oil equivalent per day
MMboe	million barrels of oil equivalent	m	metre
km	kilometre	tpa	tonner per annum
mtpa	million tonnes per annum	MW	MegaWatt
GW	GigaWatt	MWth	Megawatt therm