The CME Group, operator of the Chicago Mercantile Exchange, is one of the world's largest traders of derivatives.

VOA: special.2011.02.18

He got a job with the Marconi Wireless Telegraph Company where he worked as a telegraph operator.

VOA: special.2010.01.31

One story says it was first used during the early days of the telephone to tell an operator that a message had been received.

VOA: special.2010.02.28

The chief of British Petroleum blames failures by the rig's operator, Transocean of Switzerland.

VOA: special.2010.05.04

Her father was a pump operator for the city water department.

VOA: special.2009.01.12

That's what happened in 2000. Someone reported pollution from one of the CAFOs to state authorities and the CAFO operator blamed Henning.

VOA: standard.2010.05.06

Slim,whose real name is Bill Homans, has come a long way from his job as a heavy equipment operator for the U.S.Army during the Vietnam War.

VOA: standard.2010.08.04

Student Anna Klevets applied for the metro train operator job and was denied.

VOA: standard.2009.11.05

After two men died of heat-related causes in Moscow's metro, a consumer group sued the transit operator to bring down temperatures to the legal maximum of 32 degrees centigrade.

VOA: standard.2010.07.23