HomeBerkshire Hathaway buys 9.6 million more Occidental shares, raises stake to over 16%FILE PHOTO: Equipment used to process carbon dioxide, crude oil

FILE PHOTO: Equipment used to process carbon dioxide, crude oil

FILE PHOTO: Equipment used to process carbon dioxide, crude oil and water is seen at an Occidental Petroleum Corp enhanced oil recovery project in Hobbs, New Mexico, U.S. on May 3, 2017. Picture taken on May 3, 2017. REUTERS/Ernest Scheyder/File Photo