U.S. Securities and Exchange Act filings indicate that Soros has purchased an initial 1 million shares of Peabody Energy and 553,200 shares of Arch Coal, the two largest publicly traded U.S. coal companies. As pointed out last week, both companies have been driven perilously close to bankruptcy by the combination of President Obama’s “war on coal” and inexpensive natural gas brought on by the hydrofracturing revolution.