ENERGY

Oxy to Fire 450 at Chemical Unit: Occidental Petroleum Corp. said it will save about $100 million a year by cutting the jobs at its Occidental Chemical Corp. subsidiary in Dallas. Los Angeles-based Occidental also said it will eliminate the separate international division at OxyChem. The chemical unit’s remaining four business divisions--basic chemicals, petrochemicals, polymers and plastic and specialty chemicals--will handle their own worldwide management of products, the company said. Occidental said it does not expect to take a charge against earnings this year for the most recent cuts. The cuts bring the number of firings to about 1,500, or 8% of the firm’s 19,660-person employment as of January 1994. The restructuring is part of Occidental’s reorganization of its worldwide operations, announced in October.