Comment for Type of Reporting Person:   The 348,853,373.38 shares of Common Stock reported in Boxes 6 and 8 includes warrants for an aggregate of 83,911,942.38 shares of Common Stock.

Comment for Type of Reporting Person:   The 348,853,373.38 shares of Common Stock reported in Boxes 6 and 8 includes warrants for an aggregate of 83,911,942.38 shares of Common Stock.

Comment for Type of Reporting Person:   The shares of Common Stock of Occidental Petroleum Corporation ("Occidental") reported in this Schedule 13G include warrants for an aggregate of 83,911,942.38 shares of Common Stock exercisable by certain of the Reporting Persons within 60 days (the "Berkshire Warrants"). All shares of Common Stock underlying the Berkshire Warrants are treated as outstanding for purposes of computing the percentage ownership of each of the Reporting Persons reported in this Schedule 13G. The Berkshire Warrants were issued on August 8, 2019 initially for 80,000,000 million shares of Common Stock at an exercise price of $62.50 per share, but on June 26, 2020, Occidental's Board of Directors declared a distribution to its common shareholders of warrants to purchase additional shares of Common Stock, which distribution resulted in an anti-dilution adjustment to the Berkshire Warrants that lowered the exercise price to $59.624 per share and increased the number of shares of Common Stock issuable on exercise of the Berkshire Warrants to 83,858,848.81. The Berkshire Warrants have not been exercised. Additionally, on March 3, 2025, Berkshire was notified that Occidental was offering to holders of the warrants distributed on June 26, 2020 the opportunity to exercise the warrants at a temporarily reduced exercise price. On July 17, 2025, Berkshire was informed that the exercise price of the Berkshire warrants was reduced to $59.586 per share, due to an anti-dilution adjustment, and the number of shares of Common Stock issuable upon the exercise of the Berkshire Warrants was increased to 83,911,942.38.