mergers

Amid pressure from both U.S. and European antitrust regulators, two of the world's biggest oilfield services companies, Halliburton and Baker Hughes, have called off their $28 billion merger.

In April, the Justice Department sued to stop the merger, saying it would have eliminated competition, NPR's Jim Zarroli reports for our Newscast unit.

AT&T Inc. and T-Mobile want to merge. Boards of the mobile giants agreed to a $39 billion deal, announced Sunday, according to TechFlash reporter Greg Lamm:

The purchase, still subject to approval by regulatory boards, would create the largest mobile phone company in theU.S. If the deal closes, it would combine the nation's second- and fourth-largest wireless carriers, creating a company with nearly 130 million subscribers, and could lead to higher rates for consumers, experts said.

Lamm writes that until quite recently T-Mobile, the Seattle area's remaining major wireless firm, was considered to be in merger talks with Sprint Nextel.