The Edmonton area’s three large refineries (Imperial, Suncor and Shell) constitute the great majority of capacity in the province, and they rely on SCO for some three- quarters of their feedstock. [...] Page 1 Taken together, these capacity outages have led to a series of fuel shortages in the province, particularly for diesel and gasoline, which caused reduced efficiencies and higher costs for fuel users. [...] In this analysis, we offer recommendations for additional steps to improve Alberta’s security of fuel supply, and to minimize the prospect of future structural supply difficulties in the province. [...] AEDA’s recommendations for improving fuel supply security in Alberta address three principal topics: 1. Improving Operational Reliability in the Fuel Supply Chain, 2. Maintaining Adequate Operating Fuel Inventories, and 3. Encouraging New Sources of Refined Products Supply. [...] Because of Alberta’s climate, the complexity and long duration of (at least upgrader) maintenance turnarounds, and the short-term pressures these activities place on demand for skilled labour, it is essential to have effective coordination of major maintenance activities in the province.