Gold H2, a Houston-based startup, has introduced a groundbreaking B2G system that leverages biotechnology to convert abandoned oil wells into hydrogen generators. By injecting microbes into economically unviable oil wells, the company produces a hydrogen-rich stream that can be extracted using established well infrastructure. The first trial conducted in California's San Joaquin Basin yielded a gas stream with 40% hydrogen purity, showcasing the potential to extract a quarter trillion kilograms of low-carbon hydrogen from the state's depleted oilfields alone. Gold H2's CEO, Prabhdeep Singh Sekhon, emphasizes the company's mission to pioneer clean hydrogen production directly in the subsurface, presenting a novel approach to decarbonization. With claims of achieving similar carbon intensity to green hydrogen at a cost below $1 per kg, Gold H2's innovative solution has garnered significant attention in the energy sector. The company's collaboration with energy and oilfield services firms, along with securing $15m in investments, underscores the industry's confidence in its approach. By repurposing abandoned oil reserves into hydrogen sources, Gold H2 is not only revolutionizing the energy landscape but also offering a scalable and cost-effective pathway towards decarbonization. Industry leaders, including Jillian Evanko from Chart Industries, praise Gold H2's initiative as a game-changer that could accelerate the global transition to low-cost, low-carbon energy solutions.