This book discusses the extent to whcih differences exist in the approach to energy management by different types of firms: large multidivisional firms at corporate headquarters level and division level and independent firms, energy intensive and non-energy intensive firms and growth and non-growth firms. Although originally published in 1984, the significance of the study is reflected  by the continued timeliness and urgency of many of the issues covered such as the need  for a national energy policy and the potential for improvement in industrial energy efficiency and conservation.