From our internal company website:

Southwest today reported a second quarter 2006 net income of $273 million, excluding unrealized SFAS 133 “Accounting for Derivative Instruments and Hedging Activities,” gains/losses. This represents an increase of 87 percent compared to $146 million for second quarter 2005.

Also, "We have many efforts underway to conserve fuel, and we are pleased to announce our decision to install Blended Winglets on up to 90 of our Boeing 737-300 aircraft, beginning in early 2007."

S.B.