Barely a year after supplanting Exxon Mobil as the largest stock in the current marketplace, Apple entered the record books Monday, becoming the most valuable stock to have ever traded.

This morning, the energy sector is trading higher on the session helping to lift the major stock indexes. The important energy sector accounts for roughly 16.0 percent of the S&P 500 Index. Exxon Mobil Corp (NYSE:XOM) is considered the leading energy stock in the market. Today, XOM stock is trading higher by 0.77 cents to $83.17 a share. ...

This morning, all of the leading energy stocks are trading higher on the session. The most important energy stock that any trader can follow is Exxon Mobil Corp (NYSE:XOM). This stock is the world's largest energy company by market capitalization at $391 billion. Today, XOM stock is trading higher by 0.68 cents to $83.78 a share. Short term traders can watch for intra-day resistance around the $84.00, and $84.50 levels.   ...