The invention of purely natural gas at nearby Turner Valley (1914) spurred a whole new wave of development, centred on petroleum, particularly after Alberta’s to start with refinery opened in 1923. Three yrs after the discovery of crude oil in those fields (1936), a next refinery was built. These early https://israelxdjot.wikicorrespondent.com/5705107/tire_can_be_fun_for_anyone