The article delves into the financial performance and market dynamics of key players in the oil and gas industry, including Exxon Mobil, Linde, Shell, and Energy Transfer. Exxon Mobil, a major player in the oil and gas sector, has a robust market cap, engages in global exploration activities, and operates through various segments. Linde, an industrial gas company, operates globally offering a range of gases and services. Shell, an energy and petrochemical company, operates across continents and focuses on gas-to-liquids fuels. Energy Transfer, a company providing energy-related services, owns and operates natural gas pipelines and storage facilities in the US. Each company's stock performance and key financial metrics are analyzed, providing insights for potential investors. Despite the article's focus on these oil and gas giants, it also mentions several hydrogen stocks to watch according to MarketBeat's stock screener tool, indicating broader industry trends and investment opportunities in the energy sector.