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Occidental Petroleum is an independent exploration and production company with operations in the United States, Latin America, and the Middle East. At the end of 2025, the company reported net proved reserves of 4.6 billion barrels of oil equivalent. Net production averaged 1.4 million barrels of oil equivalent per day in 2025 at a ratio of roughly 74% oil and natural gas liquids and 26% natural gas.

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.