Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps and two groups of graphs. The first map shows the location of oil and gas fields, pipelines and processing plants for Western Canada. The capacity and location of oil refineries and gas processing plants are also denoted. The second map shows locations of crude oil, petroleum oil and natural gas pipelines as well as areas of sedimentary rocks in which oil and gas had been recently found prior to the publication date of the 1974 National Atlas. One set of graphs indicates proved marketable reserves and production of natural gas for 1971. The other set of graphs indicates the value of fossil fuel production for 1970.