--quadrouple.hese profits are windfalls of war, but the share buy—backs have —— and pumped up the dividends have raised questions asked why they don't put money into renewable security. rather than hydrocarbons accounting for 85% of the energy mix as they do today, it will maybe be 40—60% of energy mix by the middle of the century. the successful oil and gas companies that survive through that period are going to be those that can diversify their portfolios so that they have a core of key oil and gas assets in their portfolio, but are also able to bring their key skill set to be on a build—out of a more sustainable energy system, whether in renewable power, biofuels, carbon capture and storage, or an electric vehicle networks. it is flexibility, financial discipline, strong position in research and development. here are the big questions for big oil. how do theyjustify reaping record profits when hundreds of millions, if not billions of people, are struggling to heat their homes and fullup theircar