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Clean Energy Fuels Corp is a natural gas marketer and retailer operating in the United States and Canada. The company supplies compressed natural gas and liquefied natural gas for the United States (U.S.) and Canadian transportation markets. The majority of revenue is generated within the U.S. and mostly consists of compressed natural gas. The firm operates by purchasing natural gas from local utilities; compressing, cooling, or liquefying it at company-owned plants; and selling natural gas products through company-owned or customer-owned fueling stations. It also builds, operates, and maintains natural gas fueling stations for customers.

Shell is an integrated energy company involved in the exploration, production, refining, and marketing of oil and natural gas, as well as the manufacturing and distribution of chemicals. The company operates across several segments, including upstream, integrated gas, downstream, and renewables and energy solutions. Founded in 1907, Shell is headquartered in The Hague, Netherlands, and operates in over 70 countries worldwide. Its strategic strengths include a diversified portfolio with significant investments in liquefied natural gas (LNG) and a growing focus on renewable energy and decarbonization efforts. The company's global presence and extensive supply chain network contribute to its significant competitive positioning in the energy sector.