Berkshire Hathaway Inc. is a holding company owning subsidiaries in a variety of business sectors. The Company's principal operations are insurance business conducted nationwide on a primary basis and worldwide on a reinsurance basis. Berkshire's other operations include a railway company, a specialty chemical company, and an international association of diversified businesses.
​Occidental's $9.7 billion OxyChem divestment boosts debt reduction but increases vulnerability to oil market fluctuations by sacrificing a steady...