Well let's see... CHK has $11+ Billion in debt. Projected future earnings are negative which means they'll burning cash for the foreseeable future. If I where the bank where CHK had that $4B line of credit I'd be more than a little nervous. I'd likely cut that off. And wouldn't surprise me if that's exactly what happened. And that might explain the suspension of the dividend. Hint: APA is in a very similair position. The fact is a lot a small to medium E & P companines are in the same position and the banks have to be getting nervous. Once the banks they cut-off the the free money tap.... these companies go straight to bankruptcy. That's the way it is. Just watch.