ConocoPhillips Chairman & CEO Ryan Lance speaks during the CERAWeek oil summit in Houston, Texas, on March 19, 2024. ConocoPhillips on Wednesday agreed to purchase Marathon Oil in an all-stock transaction worth $17.1 billion that would strengthen the company's shale assets. "This acquisition of Marathon Oil further deepens our portfolio and fits within our financial framework, adding high-quality, low cost of supply inventory adjacent to our leading U.S. unconventional position," said ConocoPhillips CEO Rya ...