Earnings Roundup: Duke Energy, GMAC Financial

Among the earnings stories for Tuesday, May 5, from AP Financial News:

COLUMBUS, Ohio (AP) — Power generator Duke Energy said Tuesday that its first-quarter earnings fell 26 percent as a sour economy ate away at electricity demand for its industrial customers in the hard-hit areas of the Carolinas and the Midwest. The company also cited damage caused by winter storms.

NEW YORK (AP) — GMAC Financial Services, the largest financier of General Motors Corp. vehicles, said Tuesday its lost more money in the first quarter than a year ago as the troubled home and automotive loan markets continued to weigh on results. ...