Issued on July 2020, exercisable through Aug 2027, exercise price $22.00. Most important factor in determining how this one turns out is obviously the price of oil but is it that unimaginable that sometime over the next 7 years oil trades at $60, $70 or $80? If oxy just keeps chugging along at current WTI prices and uses free cash flow to pay down debt this should work out just fine, if at some point oil price does go above that level it could end up very well. Downside scenario is OXY can't pay its debt or oil prices remain low for longer. Icahn has ~11% stake (including warrants) and 3 board members and has been buying the warrants on a daily basis lately. Exercise price on the Berkshire preferred is $62.50, yes it was made in a different WTI price environment and pre-COVID but gives you a sense of what Buffett thought the upside might look like here back then