Expect a big rebound in global energy demand in 2021, portfolio manager says

Oil prices have broken through $50 a barrel for the first time since February, and Big Oil stocks have seen a bounce with Exxon up 44% from its year low and Chevron 66% higher. Rob Thummel, senior portfolio manager at Tortoise Capital Advisors, joined "Squawk Box" on Wednesday to discuss.
Wed, Jan 6 20218:05 AM EST