Foot-poundals
The foot-poundal is the amount of energy required to move a one-pound mass a distance of one foot with an acceleration of one foot per second squared.
Therm (US)
A US therm is 105,480,400 joules, which is 100,000 Btu (59°F) and roughly the energy in 100 cubic feet of natural gas. US gas bills are often given in therms.