Israel's ground offensive in Gaza and a dispute between Ukraine and Russia over gas imports pushed oil prices above $48 a barrel Monday, but some analysts say there's more than just unrest in the Middle East behind the rally.

Republican and Democratic House members said Monday that the alleged $50 billion fraud involving Wall Street figure Bernard Madoff reflects deep, systemic problems at the Securities and Exchange Commission.

Chrysler LLC's December U.S. sales plunged by more than half and it sold 30 percent fewer vehicles in 2008 as consumers remained uncertain about the economy and their jobs, dwarfing the steep declines at the other major automakers.

Apple founder Steve Jobs, a survivor of pancreatic cancer whose gaunt appearance in the past year has alarmed the Mac and iPod lovers who look to him as an oracle, said Monday he has an easily treated hormone imbalance and will remain in charge of the company.

The internal watchdog at the Securities and Exchange Commission said Monday an investigation of the agency's failure to uncover the alleged $50 billion fraud involving Wall Street figure Bernard Madoff will extend broadly to the agency's enforcement operations.