1.   High U.S. inventories, increasing Russian oil production and other factors may conspire to keep runaway prices in check.

2.   Looking back on Russia, which the band left just as its financial crisis crystallized, the musician most recalls runaway prices and a bad experience with Russian trains.

3.   But runaway price increases also threaten stability.

4.   Investors saw those figures as one-time blips, not as a signal of runaway price increases.

5.   The oil cartel warned that supply could soon outstrip demand after four production hikes this year failed to tame runaway prices.

6.   This year gasoline inventories are running below year-ago levels and are adding to fears of runaway prices.

7.   However, experts say the rapid influx of investors and a shortage of stocks has caused the market to overheat, resulting in runaway price rises and excessive speculation.