This manual, Army Techniques Publication ATP 4-43 Petroleum Supply Operations April 2022, is the United States (U.S.) Army's reference for commanders, staff personnel, and Soldiers performing petroleum storage, distribution and quality surveillance operations. ATP 4-43 provides information on petroleum supply operations to include roles of the theater Army, field army, corps and division headquarters, the sustainment headquarters at echelon and Army unit capabilities to execute petroleum supply operations. This version of ATP 4-43 reflects changes that occurred in force design, distribution management and materiel management since the 2015 edition and re-orients ATP 4-43 to align with FM 3-0 and FM 4-0. Additions to this manual include information regarding planning activities, the distribution management and materiel management process, cold weather operations, and interoperability with NATO fuel distribution equipment. ATP 4-43 contains six chapters and eighteen appendices. Chapter 1 provides a brief overview of petroleum supply operations and their role within the Army operational contexts; petroleum quality management, and general safety and environmental considerations. Chapter 2 provides an overview of Army organizations at the theater, corps and division echelon and their roles in petroleum supply operations and Army unit capabilities to conduct petroleum supply operations explains the Army's organizational structure for petroleum supply. Chapter 3 describes the operational art in sustainment. It explains the petroleum planning process across the Army operational contexts and by each echelon. Chapter 4 describes the distribution management process for Army petroleum supply operations. Chapter 5 provides the reader with a basic understanding of Army petroleum operations. This chapter includes accountability and distribution measures and the application of the various petroleum systems and equipment. Chapter 6 surveys petroleum supply operations considerations for safety, environmental stewardship and protection, primarily for the commander and staff.