Common Abbreviations
bbl. = barrel
b/d = barrels per day
Mcf = thousand cubic feet
MMcf = million cubic feet
Bcf = billion cubic feet
Tcf = trillion cubic feet
BTU = British Thermal Unit
NGL = Natural Gas Liquids
LPG = Liquified Petroleum Gases

Energy Conversions
One barrel of crude oil equals:
42 gallons
5,800,000 BTU of energy
5,614 cubic feet of natural gas
0.22 ton of bituminous coal

One cubic foot of natural gas equals:
7.48 gallons
1,030 BTU of energy
0.000178 barrel of crude oil
0.00004 ton of bituminous coal

One short ton of bituminous coal equals:
2,000 pounds
26,200,000 BTU of energy
4.52 barrels of crude oil
25,314 cubic feet of natural gas

One metric ton of crude oil equals:
2,204 pounds
7.46 barrels of domestic crude oil
6.99 barrels of foreign crude oil

One cubic meter of natural gas equals:
35.314 cubic feet