Lehman Brothers’ bankruptcy and failure can’t be understated. The company’s demise had any number of victims, LINN Energy, an oil and gas company, not the least among them.

Lehman was LINN’s largest shareholder and also its banker. So when Lehman went down, the broker’s LINN holdings were liquidated and LINN’s hedges against future oil prices were seen as worthless, supposedly leaving the company vulnerable to the whims of the market. LINN stock suffered accordingly.