Also. . .

* Imperial Holly Corp., the largest processor of refined sugar in the United States, agreed to buy closely held Diamond Crystal Specialty Foods Inc. for $153.9 million. Diamond Crystal sells nutritional dry mixes, sauces and seasonings to the food service and health-care industries, a market where Imperial has little presence.

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* France said it ended talks to sell mortgage lender Credit Foncier de France to General Motors Acceptance Corp., the financing arm of General Motors Corp., and a group of investors led by Texas-based Robert M. Bass, saying the offer failed to meet its objectives. Unions have been reluctant to accept a foreign buyer for Credit Foncier, fearing job cuts among its 2,400 workers.

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* Enron Oil & Gas Co. named President Mark G. Papa chief executive, succeeding Forrest E. Hoglund, who will remain chairman until his retirement in one year.