This book is focused on the management of gas consumers, especially in cases of gas supply disruptions. It addresses natural gas consumers from numerous different fields, including those in the industrial sector, the electric power industry, and public utilities. It highlights various ways gas supply can be affected and demonstrates the approaches that can help recovery from reduced, stopped, and restored gas deliveries. The algorithms involved in transitioning gas consumers from normal to emergency operation, and the algorithm for recovering normal operation after an emergency in the gas supply system is terminated are explored thoroughly. By clearly explaining several approaches, this book will enable specialists to more effectively manage gas-consuming enterprises in emergency situations associated with gas supply disruption