Three charts from balance sheet items:
Forget the quarterly profit and loss, it's the balance sheet items that show how an O&G company that was big and strutting just a few quarters ago can go belly-up extremely quickly. If PRE.to can renegotiate its financial debt pile it has a decent shot of a long-term future. If it can't, its only future will be as a case-study for business MBA courses. Sophomore level.