Extreme and illogical overreaction. The loan was about $9 Million; the loss of Market Cap on the news came to 20% of 650 Million, or 130 Million. Unless there is something else or more than has been disclosed, this is totally taken out of whack.
Last few days have been mainly worries about Europe Bonds declining. So yes, it's all interest rate stuff. As you probably know well, utilities and income stocks go down when bond yields rise.
But it is unlikely that UST yields will rise much - if at all - this year.
Like the others have said, just enjoy the dividends. Stock might go down to the very low 40's, but it will NOT go bankrupt; their dividends should be safe for a long, long time.