UPDATE 1-Wyoming-Illinois crude pipeline shut due to leak

(Adds details)

NEW YORK, Sept 7 (Reuters) - Kinder Morgan (KMP.N) has shut its Platte crude oil pipeline running from Casper, Wyoming, to Wood River, Illinois, due to a leak, a spokesman said on Friday.

The leak, in rural Middletown, Missouri, was discovered late Thursday and the company was in the process of cleaning up the spill, a spokesman said.

It was not clear when the pipeline would be restarted, he added.

The pipeline carries around 164,000 barrels per day of crude, according to the company's Web site.

The Platte system carries Canadian and local Rocky Mountain crude to markets in Kansas and Illinois, as well as to other interconnecting carriers in those areas.