The storage of natural gas in underground formations has played a key role in providing a reliable and affordable source of gas to meet the demands for electric generation and heating. Over the two decades R&D and application of the resulting technology has played a key role in providing a safe, reliable, and affordable source of gas supply. The discussions and presentation will cover what is technology, why the importance, societal influence and importance, and the future of technology in underground storage whether natural gas, hydrogen, air, or sequestration.