Billionaire Warren Buffett didn’t get rich by overpaying for companies. Last quarter, the Oracle of Omaha employed his value-minded approach to pick up shares in Apple (NASDAQ: AAPL) and Phillips 66 (NYSE: PSX). The two companies are among Buffett’s most significant recent buys, but should you consider buying them, too? Read on to find out if these two stalwarts are right for your portfolio.