OntologyGas (ONG) is the utility token powering the Ontology blockchain ecosystem, designed to manage transaction fees and compensate network validators since 2018. This comprehensive guide explores ONG's technical architecture, market dynamics, and ecosystem applications across the distributed trust infrastructure. As of January 2026, ONG boasts 1.6 million holders and a market capitalization of $36.4 million, with trading available on Gate and other major exchanges. The article examines ONG's price fluctuations, on-chain metrics, core use cases in network operations, and its role in Ontology's distributed identity and data exchange protocols. Whether you are evaluating blockchain gas tokens, researching network economics, or considering ecosystem participation, this guide provides essential insights into ONG's functionality, community engagement, and long-term development outlook within the evolving cryptocurrency landscape.