Pittsburgh-based National Intergroup said it will repurchase...

Pittsburgh-based National Intergroup said it will repurchase up to 3 million of its common shares under an Aug. 2 board authorization. In a separate announcement, the company said it has signed a definitive merger agreement with Foxmeyer Corp. under which a National Intergroup unit would acquire Foxmeyer at a price of $35 per share . . . Federal Reserve Board governors Wayne Angell and Manuel Johnson were sworn in Friday in a ceremony in Washington . . . The London Metal Exchange said it will resume trading in the first half of March, “subject to negotiations currently in progress being successfully concluded” . . . Occidental Petroleum extended the expiration date and proration period to Feb. 14 for its $75-per-share offer to purchase 21 million shares, or 54%, of Midcon Corp. . . . The Treasury plans to sell $9 billion in 52-week bills Thursday . . . Swan Brewery of Australia entered into a definitive agreement with Pittsburgh Brewing Co. under which the Perth firm will pay $22.50 a share for all Pittsburgh Brewing shares . . . Lin Broadcasting Corp. entered into a definitive agreement to sell its New York area radio-paging operations to Nynex Corp. . . . Standard & Poor’s raised the rating on Hartford National’s $50 million of senior debt to A from A-.