Contained within the 3rd Edition (1957) of the Atlas of Canada is a map that shows the location and direction of flow of oil and gas pipelines along with the location of oil refineries. The daily crude oil capacity in barrels per day is indicated for refining centres by means of proportional circles. The source data for refineries is for the end of 1955 and pipeline source data is for the end of 1957. An additional map shows the location of coal, oil and gas fields. The coal fields shown are the major ones which were being worked in 1955 and the oil and gas fields shown were proven fields by the end of 1955. These maps are accompanied by three pie charts showing the provincial proportion of Canada's 1955 production of crude oil, natural gas and coal.