An enterprise fuel management system for managing fueling operations of an aircraft fleet operated by a fleet operator having a central computer system at a data center and operating aircraft at multiple airports avoids reliability problems associated with synchronizing a central database with local databases. Data collection units communicate collected fueling information wirelessly to a central data center, and the data collection units are not in direct communication with the fleet operator's central computer system. Moreover, the central data center gathers fueling information from the various data collection units and communicates the gathered fueling information to the fleet operator's central computer system as data messages for subsequent processing and action. In this way, the fleet operator's central computer system can maintain the only database of fueling information and flight information, obviating the need to synchronize the data in the fleet operator's computer system with data in some other computer system.