Contents Under Pressure is a comprehensive picture of the business process of Natural Gas Transportation. Beginning with a high-level introductory overview of natural gas and the transportation business, the book then dives deep into the details of daily business and how it is conducted, culminating in a comprehensive glossary. This book covers the transportation business process of contracting, nominations, confirmations, scheduling, measurement, allocations, imbalances and invoicing. Deep dive topics include segmentation, flow day redirects, capacity release, the nomination model types and the lesser of rule.