Earnings roundup: News Corp., Liberty Global

Among the earnings stories for Wednesday, May 7, from AP Financial News:

Top stories:

NEW YORK (AP) _ Rupert Murdoch's News Corp. reported Wednesday that its earnings more than tripled in the latest quarter on a one-time gain of $1.7 billion from a stock exchange with Liberty Media Corp.

ENGLEWOOD, Colo. (AP) _ Liberty Global Inc. says its first-quarter loss widened on higher interest payments and losses on derivatives.

Other stories:

SANTA CLARA, Calif. (AP) _ Video technology provider Macrovision Solutions Corp., which bought Gemstar-TV Guide International Inc. last week, said Wednesday its first-quarter profit grew but revenue inched lower.

HOUSTON (AP) _ Oil industry contractor Willbros Group Inc. said Wednesday it swung to a profit in the first quarter as sales more than doubled on strength at a recently acquired Canadian pipeline construction business.

RADNOR, Pa. (AP) _ Energy company Penn Virginia Corp. said Wednesday its first-quarter profit fell 11 percent, as a jump in derivatives expense offset revenue growth.