Volume units

Bcm/y (normal)* Billlion (109) normal cubic metres per year.
Mcm/d (standard)** Million (106) standard cubic metres per day.
m3/h (normal) Normal cubic metres per hour.
Mcf/d (standard) Million standard cubic feet per day.
TOE/d Tonnes of oil equivalent per day.
Tonne LNG/d Tonnes of liquefied natural gas per day.

Energy units
MMJ/d (TJ/d) Million (1012) Mega Joules per day (1MMJ = 1TJ).
MMJ/h (TJ/h) Million (1012) Mega Joules per hour (1MMJ = 1TJ).
Therms/d Therms per day.
kWh/d Kilowatts hour per day.
kW (kWh/h) Kilowatts (1kW = 1kWh/h).
*Normal : 0ºC y 1 atm
**Standard: 15ºC y 1atm