section_path: Energy content, statistics, and pricing/Canada
section_name: Canada
paragraph_text: Canada
  
  Canada uses metric measure for internal trade of petrochemical products. Consequently, natural gas is sold by the gigajoule (GJ), cubic meter (m) or thousand cubic meters (E3m3). Distribution infrastructure and meters almost always meter volume (cubic foot or cubic meter). Some jurisdictions, such as Saskatchewan, sell gas by volume only. Other jurisdictions, such as Alberta, gas is sold by the energy content (GJ). In these areas, almost all meters for residential and small commercial customers measure volume (m or ft), and billing statements include a multiplier to convert the volume to energy content of the local gas supply.
  
  A gigajoule (GJ) is a measure approximately equal to 80 litres (0.5 barrels) of oil, or 28 m or 1,000 cu ft or 1 million BTUs of gas. The energy content of gas supply in Canada can vary from 37 to 43 MJ/m (990 to 1,150 BTU/cu ft) depending on gas supply and processing between the wellhead and the customer.