Warren Buffett's energy division has had a negative income tax rate for 5 years straight - as it's received clean-energy credits worth billions

Warren Buffett's energy division has had a negative income tax rate for 5 years straight - as it's received clean-energy credits worth billions

Warren Buffett.REUTERS/Mario Anzuoni <ul> <li>Warren Buffett's energy business has reported a negative income tax rate for five years in a row.</li> <li>Berkshire Hathaway Energy receives tax credit… [+2897 chars]

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