COLUMN-For investors, coal brings lumps By: Reuters: Company News May 19, 2014 at 12:40 PM EDT (The author is a Reuters columnist and the opinions expressed are his own. For more from John Wasik see http://link.reuters.com/syk97s) Read More >> Related Stocks: Chevron Corp Exxon Mobil Gentherm Inc Integral Vision Inc Maxwell Technologies SPDR S&P 500 ETF Trust