‘What is a “Lehman moment”? Generally speaking it’s the point at which one company’s disaster becomes everyone else’s problem, as happened in September 2008 when the losses Lehman Brothers had made by betting on America’s subprime mortgage market became insupportable, the investment bank filed for the biggest bankruptcy in corporate history, and panic spread like a disease through the global financial system.’

See: The energy industry is moving into a credit crunch | LinkedIn