related companies in the Standard & Poor's 500 Index higher. The AMEX oil index was at an all-time high. Shares of Exxon, a component of the Dow Jones industrial average, rose 3.7 percent to $63.54 on the New York Stock Exchange. Earnings news overall was mixed as drug maker Schering-Plough posted lower-than-expected fourth quarter revenue sending shares down 1.6 percent and pressuring other drug makers like Merck & Co.. U.S. meat processor Tyson Foods Inc. also slashed its full-year earnings forecast, sending shares down 8.6 percent to $14.06. ID:nN30268964 Shares of Wal-Mart Stores Inc. were up 2.1 percent at $46.81 after the company said on Saturday January same-store sales rose 4.7 percent. ID:nN28199556 Shares of building products company USG Corp. were the top percentage gainer on the NYSE, rising 13.6 percent to $90.74 after the company said it had reached a $4 billion asbestos settlement. ID:nN30266608 Helping the Nasdaq, shares of Blackberry-maker Research In Motion rose 2.5 percent to $67.41 after a German patent court ruled in favor of the e-mail device maker in a patent infringement case.