 This time of year, traveling and demand for gasoline are up, pushing prices up. But now also this, says ABC's Jim Ryan. Oil prices are on track for a fourth straight week of gains, and they're holding near their highest level since late April. The surge is due to hopes of strong summer fuel demand and some supply concerns. Updates on the cost of living this week, says ABC's Daria Albinger. Starting with the Consumer Price Index, or CPI, it's going to be out on Thursday. It measures what we pay for just about everything month to month and year over year.