Bloomberg Markets with Carol Massar and Cory Johnson.\u0010\u0010GUEST:\u0010David Wilson\u0010Stocks Editor\u0010Bloomberg News\u0010Discussing his "Stock of the Day" Westmoreland Coal (WLB). Westmoreland Coal Co.'s shares gave back the last of their gains since November after disappointing first-quarter results. The coal producer had an adjusted loss of $2.06 a share, rather than the break-even quarter predicted in a Bloomberg survey of analysts. Westmoreland cited the effect of relatively warm weather on demand.