The energy sector is witnessing a revolutionary shift towards seeking hydrogen underground as a potential green fuel source. While hydrogen has long been essential in various industries, the focus is now on uncovering natural deposits underground. Contrary to previous beliefs, evidence suggests vast hydrogen reserves exist in rocks different from those hosting oil and gas deposits. Companies like Koloma are investing heavily in geologic exploration, with Australia's southern region emerging as a hotspot for hydrogen prospects. Challenges such as ensuring economic extraction and overcoming transportation issues loom large. The presence of hydrogen with methane raises environmental concerns, warranting caution in operations. Researchers are actively exploring innovative techniques like water injection to stimulate hydrogen production from untapped rock reservoirs. The transition to hydrogen energy presents a promising avenue to combat climate change by leveraging existing oil and gas industry expertise. While uncertainties persist regarding accessibility and environmental impacts, the industry's enthusiasm for technological advancements indicates a positive outlook for the future of hydrogen energy.