U.S. Stocks Mixed Despite Oil Price Surge: Lockheed Martin Shares Slip on Trump Tweet

U.S. stocks were mixed on Monday despite a surge in oil prices. Non-OPEC members joined OPEC's landmark November 30 production cuts. Saudi Arabia also indicated that it could cut production even more than it initially planned to. President-elect Donald Trump tweeted about the cost of the government's F-35 program, which he says are "out of control." The tweet sent shares of Lockheed Martin (LMT) - Get Report , the maker of the F-35, lower. The same happened to Boeing (BA) - Get Report shares last week when Trump criticized the high costs of a new Air Force One plane Boeing was developing for the government. Exxon Mobil (XOM) - Get Report shares were on the rise after its CEO Rex Tillerson has reportedly been chosen as Trump's Secretary of State. Trump called him a "world-class player" on Twitter. TheStreet's Scott Gamm reports from Wall Street.