The article discusses the appeal of hydrogen stocks for investors looking to participate in the expanding renewable energy sector. Hydrogen stocks involve companies engaged in the production, development, or utilization of hydrogen as an energy source, encompassing areas like fuel cells and infrastructure. Exxon Mobil, a significant player in oil and gas exploration internationally, is highlighted as a promising investment option for those interested in hydrogen technology. Ingersoll Rand, known for its diverse flow creation technologies, and BP, with a focus on low carbon energy production and carbon capture, are also pinpointed as key hydrogen stock contenders. The article provides insights on the trading performance and market caps of these companies, emphasizing their potential for growth in the clean energy landscape. Additionally, it mentions MarketBeat's stock screener tool suggesting Exxon Mobil, Ingersoll Rand, and BP as top hydrogen stocks to watch, reflecting a positive sentiment towards these companies in the hydrogen sector.