Beneficial Corp. said it signed a definitive agreement for the previously reported sale of its Western Auto Supply subsidiary to Wesray Inc. for $300 million . . . Cities Service Oil & Gas, a unit of Occidental Petroleum, said it will redeem $117 million in 17% guaranteed notes on Oct. 16. The notes are due Sept. 15, 1988 . . . MicroPro International said it expects to report a profit in its fourth quarter ended Aug. 31, its second quarterly profit following a string of large losses.