AEROSPACE

Occidental Unloads IBP Stake: Occidental Petroleum Corp. said its 51% stake in IBP Inc. has been sold, as expected, for $360 million. But the transaction was less successful for its underwriters--who ended up buying most of the securities. Oxy’s sale of 24 million shares in the nation’s largest producer of beef and pork products will reduce the company’s debt by $760 million. But for First Boston and Donaldson, Lufkin & Jenrette Securities, the transaction produced a “modest loss,” a source said, because of a sharp drop in IBP’s stock price since the offering was announced Sept. 4.