🔸Buffett put his money to work. 🔸 Berkshire Hathaway added to its Chevron bet significantly during the first quarter, making the energy stock the conglomerate's third biggest equity holding. 🔸The "Oracle of Omaha's" Chevron investment was worth $25.9 billion at the end of March, the company's first-quarter filing Saturday showed, a big jump from its value of $4.5 billion at the end of 2021. 🔸 Together with the $10 billion in OXY preferred, Berkshire's bet on the oil sector is now over $40 bi