Southwest Airlines Co. (LUV) continues to grapple with rising expenses. The current scenario of rising fuel costs does not bode well for the airline and is hurting its bottom line. High fuel costs due to an escalation in oil prices are a bane and are likely to hurt Southwest Airlines' bottom line. As fuel expenses represent a key input cost for any airline player, the uptick in these costs naturally does not bode well.The northward movement in crude prices is primarily due to the ongoing production cut by m ...