Zacks.com submits: Houston, Texas-based Weatherford International, Ltd. (WFT) is a leading manufacturer and provider of equipment and services used in drilling, completion, and production of oil and natural gas wells. We are upgrading Weatherford shares to Buy from Hold following the recent commodity-price induced weakness in the stock, which has made valuation very compelling for this quality oilfield name. The stock is down roughly 35% in the last 12 weeks, compared to the peer group's average of a 26% pullback and the roughly 4% decline in the broader S&P 500. Complete Story » ...