Ruby, I cannot recall Soros, but I think Warren Buffet has been mentioned; but that, I, at least did not take seriously.
Soros purchase in PXD though, I take Very Seriously.....and, of course he wud know anything there is to know abt. PXD (incl. the Billion suit by an obscure OTC Co. ticker MOSH trading at 4.5 cents), ERHE and the works : )