Warren Buffett’s Oncor Play Shows Berkshire’s Energy Ambitions
Berkshire Hathaway Chairman Warren Buffett Photo: GETTY IMAGES By Dana Mattioli, Nicole Friedman and Peg Brickley Updated July 7, 2017 9:04 a.m. ET Warren Buffett’s Berkshire Hathaway Inc. struck a deal to buy one of the country’s biggest power-transmission companies, cementing electricity