2012 report charts

Select a chart below to display and analyze the data in more detail.

NOx emissions

NOx is the sum of total nitrogen oxide and nitrogen dioxide produced by a piece of equipment and/or facility. The decrease corresponds with improvements made to the data collection process and more accurate identification of engine types, resulting in better, more comprehensive data quality.

NOx emissions (tonnes)

Measurement abbreviations used throughout the report


bbls barrels
BOE/d barrel of oil equivalent per day
CO2 carbon dioxide
CO2E carbon dioxide equivalent
GJ gigajoules
GHG greenhouse gas
m³OE cubic metres of oil equivalent
mg/L milligrams per litre
MMcf/d million cubic feet per day
SOR steam to oil ratio