Ian writes on fossil energies, climate, and transition to renewables. Vicki Hollub is CEO of Occidental Petroleum OXY Corporation, the first woman CEO of a large U.S. oil and gas company.

Warren Buffett’s Berkshire Hathaway purchased 763,017 shares of Occidental Petroleum on Friday for $35.7 million, according ...

Occidental Petroleum CEO Vicki Hollub spoke to The Wall Street Journal about her musical background, using sports metaphors as a management tool, and whether she'd rather tailgate with Bear Bryant ...

Berkshire now owns 264 million Occidental shares worth about $12 billion, a 28% stake in the big U.S.-focused energy company.

That’s a feather in the cap of CEO Vicki Hollub, who may have gotten a boost from Warren Buffett’s Berkshire Hathaway ...