Southwest hedged against oil price increases and has hedges through 2009 at $51 a crude oil barrel. This has proved to be a smart move as it has provided Southwest with a hedge worth over $2 billion with most of the hedges value being realized over the next 2 years. Airline fuel costs are substantial and evey dollar increase in the price of crude translates intoa $80 million increase in the fuel bill for American Airlines. The hedges for the first 9 months of 2007 cost Southwest about $42 million, so its surprising that other airlines, United, Delta, American, Jet Blue and Northwest did not hedge against rising prices. Maybe they thought that at prices of $52 at the beginning of this year why hedge if prices go down to $40. Or they were too distracted by looking for merger options, or pricing options or other things. What will happen now if oil prices keep climbing? Can airlines raise fares. Yes but revenue per mile is'nt going up significantly as the mix of seats changes with price increases, more of the lower priced seats are sold than the higher priced ones and revenue per seat has not improved. For example even in an environment where 6 industry fare increases ocurred in the 3rd quarter Southwest average ticket price for that period was $105.37 only 62 cents higher than the previous year. Southwest now hopes to gain in this cycle as the other airlines may scrap some routes or ground some planes and Southwest can expand in those areas. ...