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First Community Bankshares Inc is a financial holding company that provides commercial banking products and services. The company is engaged in providing demand deposit accounts, savings, and money market accounts, certificates of deposits; commercial, consumer, and real estate mortgage loans, and lines of credit; various credit card, debit card, and automated teller machine card services; corporate and personal trust services; investment management services and life, health, and property and casualty insurance products. The company's revenue is mainly derived from interest, fees, and commissions.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.