General Motors Acceptance Corp. a subsidiary of...

General Motors Acceptance Corp. a subsidiary of General Motors Corp. unit it has agreed to buy Xerox Corp’s NAVCO Corp. insurance holding company for an undisclosed price... San Francisco-based Bechtel Corp. said it had been chosen to perform a $140 million expansion of a Montana petroleum coke and sulfur recovery refinery for Conoco Inc.....The investment Company Institute reported that the assets of the nations’s 520 money market mutual funds fell $542.2 million in the week Aug. 29 to $407.45 billion.