Chevron to buy Houston-based energy firm in multibillion-dollar deal

California-based Chevron Corp. (NYSE: CVX), which has a major presence in Houston, has reached an all-stock deal to buy Houston-based Noble Energy Inc. (Nasdaq: NBL) a little over a year after losing out on Anadarko Petroleum Corp. The deal values Noble's stock at $10.38 per share, or $5 billion in total, according to a July 20 press release. That represents a nearly 12 percent premium on the 10-day average based on closing stock prices on July 17. Noble Energy shareholders are slated to receive…