This excerpt taken from the WLB DEF 14A filed Jul 19, 2007.
Stock Appreciation Rights
A participant will not have income upon the grant of a stock appreciation right. A participant generally will recognize compensation income upon the exercise of SARs equal to the amount of the cash and the fair market value of any stock received. Upon the sale of the stock, the participant will have capital gain or loss equal to the difference between the sales proceeds and the value of the stock on the day the SAR was exercised. This capital gain or loss will be long-term if the participant held the stock for more than one year and otherwise will be short-term.