VOA News Africa ConocoPhillips buying Marathon Oil for $17.1 billion in all-stock deal Design TechMay 30, 2024011 views ConocoPhillips buying Marathon Oil for $17.1 billion in all-stock deal A Marathon gas station is pictured in Bradenton, Florida, Feb. 7, 2024. ConocoPhillips is buying Marathon Oil in an all-stock deal valued at approximately $17.1 billion.