Thanks, worth keeping an eye, on the stock too. I am not experienced with bonds ,please update if you think they are a buy. I added the stock to my quotes screen.
When environmental catastrophes happen, coupled with loss of human life, the stock is pure speculation in my book, as I can see scenarios where the government will put the company out of business for political reasons (which is why I didn't touch BP stock during the Deepwater Horizon debacle). But since there's real underlying value, I think that bonds are relatively safe bets. Might not make outsized returns that one might see with the stock, but not-so-shabby returns are definitely in the cards (as they were for BP bonds back then).
FTR, I do have a small long position (after I sold most of my position quite a while ago) in VALE which is significantly up from my entry point.