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The Bureau of Land Management has begun taking comment on its plan to open up 461-thousand acres of public land in Utah, Colorado and Wyoming for Oil Shale Research, Development, and Demonstration Leases.Oil shale development involves extracting a petroleum-substance called kerogen that can be cooked and potentially turned into a liquid fuel.Western Resource Advocates spoke out against the plan today.

TIM KUPSICK Star-Tribune file

 A dispute between a natural gas pipeline operator and a coal mine in southwestern Wyoming has landed in court.

Utah-based Northwest Pipeline GP claims that operations at Chevron's coal mine near Kemmerer shifted the earth near two interstate pipelines. Northwest has filed a lawsuit against Chevron Mining Inc. seeking at least $20 million to pay for the pipelines to be protected and moved.

A Colorado company has announced a $193 million deal to buy a coal mine in western Wyoming from Chevron
Mining Inc.

Chevron has been getting out of the coal industry and the Kemmerer mine is among its last coal assets. The  mine produces 4.7 million tons of coal a year.

The buyer is Englewood, Colo.-based Westmoreland Coal Co. The deal announced Tuesday includes a purchase price of $179 million plus $14 million in working capital.

The Bureau of Land Management is seeking public comments on a company's plans to drill up to 88 new wells in western Wyoming.

Chevron USA, Inc., is proposing to expand the Table Rock Field 40 miles east of Rock Springs with 33 shallow oil wells and 20 deep gas wells. As many as 35 water injection wells also would be drilled.

The BLM says just over 300 acres would be disturbed and the wells would have a lifespan of between 40 and 55 years.