Oil and gas production is Alberta's largest industry, accounting for almost one quarter of its gross domestic product (GDP). However, it takes energy to make energy. Natural gas (66.76%), oil (26.51%) and electricity (5.12%) are the major sources of energy used by petroleum producers in this province. , oil and gas production (including transmission facilities)used 970,735,800 GJ that directlyemitted 90,650,920 GHG tonnes. The fuels produced by this sector ultimately make their way to other industrial, commercial, institutional and residential end users. To learn how natural gas flows from the wellhead to petroleum producers, as well as to your own pilot light, click on the orange icons above....