Caution: spammy website, and this was back in 2014: https://www.utilitydive.com/news/warren-buffett-to-keep-betting-on-energy-as-far-as-the-eye-can-see/272471/

Caution: spammy website, and this was back in 2014: https://www.utilitydive.com/news/warren-buffett-to-keep-betting-on-energy-as-far-as-the-eye-can-see/272471/ https://www.utilitydive.com/news/warren-buffett-to-keep-bett...