 Shares of Baker Hughes Co. BKR, 3.90 dropped 4.3 in premarket trading Wednesday, after the oilfield products and services company reported second-quarter results that missed expectations, as component shortages, supply chain inflation and the suspension of Russian operations weighed on results. Net losses widened to 839 million, or 84 cents a share, from 68 million, or 8 cents a share, in the year-ago period. 