Pioneer Natural Resources NewsLatest News On Pioneer Natural Resources Mars, maker of M&M's and Snickers, to buy Cheez-It owner Kellanova for nearly $30 billion8/14/2024 8:46 AM ConocoPhillips buying Marathon Oil for $17.1 billion in all-stock deal as energy prices rise5/29/2024 8:18 AM ConocoPhillips buying Marathon Oil for $17.1 billion in all-stock deal5/29/2024 8:18 AM Big Oil's Un-American Scheme to Price-Gouge Consumers5/14/2024 1:25 PM Permian deals boost mergers and acquisitions to record start in 20245/6/2024 4:39 AM