Hansen Natural's ( HANS) fourth-quarter earnings rose 152% from a year ago and blew past estimates as its "Monster Energy" drinks continued to fuel breakneck growth. Hansen earned $18.4 million, or 75 cents a share, in the quarter, compared with $7.3 million, or 31 cents a share, a year ago. Net sales rose 95% from a year ago to $98 million. Analysts had been forecasting earnings of 62 cents a share on sales of $88.9 million in the most recent quarter. The stock has been a major performer. It's up 27% since the start of 2006 and fivefold since the start of 2005. In recent premarket trading, the shares added another $4.77, or 4.8%, to $105.26. The company said fourth-quarter earnings rose primarily because of "the substantial increase in sales volumes of Monster Energy drinks." It also said sales of its Khaos energy drinks were "encouraging."