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June 24 (Reuters) - Coal miners and power companies are both suffering as railroads struggle to clear a backlog of coal stuck in the Powder River Basin in Wyoming and Montana after the harshest winter in over a decade.
The coal shortage is forcing utilities to burn more expensive natural gas and eroding profits for coal miners. Peabody Energy Corp 's first-quarter loss more than doubled, while Arch Coal Inc's net loss widened 77 percent. Cloud Peak Energy Inc was pushed to a loss in the three months ended March 31 after 2 quarters of profit.
The only way to get the coal out of the basin is by rail and just two operators - Union Pacific Corp and Berkshire Hathaway Inc's Burlington Northern Santa Fe (BNSF) - transport coal from the region.
"Demand for PRB coal has been much stronger than the railroads were prepared to handle and stronger than utilities had expected going into this year", said Ted O'Brien, president at coal analytics company Doyle Trading Consultants in New York, referring to coal from the Powder River Basin, the source of about 40 percent of U.S. coal supply.
Railroads are also handling rising shipments of oil and of grain, limiting their capacity to ship coal.
"We have been constrained to 125 cars per train when we are able to handle 136 train sets," said Curt Pearson, spokesman for North Dakota-based utility Basin Electric Power Cooperative.
While railroads are buying more locomotives to ease bottlenecks, analysts and investors said problems are likely to persist until the end of the year.
"Coal producers are definitely constraining the amount of volumes they are able to bring to market," said David Jackson, a portfolio manager at Philadelphia-based Penn Capital Management.
Cloud Peak, all of whose three mines are in the PRB, cut its forecast for full-year production by 2 million tons from the top end of its earlier forecast of 86 million to 92 million tons in April.
Arch Coal Inc said in April that it could have shipped 4 million to 5 million more tons of coal between the fourth quarter and first quarter if it weren't for the rail shipping problems.
"Our coal stockpile is adequate but it is certainly less than desired and this is partially the result of the lowered velocity of the coal trains," said Basin Electric Power Cooperative spokesperson Curt Pearson.
Basin Electric is the managing partner and part owner of the Laramie River Station, located east of Wheatland, Wyoming. The plant has three coal-fired units.
"We would hope to see a renewal of more frequent and larger train sets in summer or early fall, before the winter, we do need to build our stockpile," Pearson said, adding that the company was working with BNSF on a daily basis to resolve the issue.
Coal advocacy group Western Coal Traffic League, which includes utilities such as Berkshire Hathaway's MidAmerican Energy Co petitioned the Surface Transportation Board in March about what it called the "BNSF Railway Service Crisis." (1.usa.gov/V58GYf)
It said it was "deeply concerned" about BNSF's ability to deliver coal through the summer months and that many members of the group feared they would run out of coal soon and force them to shut many plants.
The U.S. Energy Information Administration forecast 108 million short tons (MMst) of power sector coal inventories for August 2014. That would be the lowest monthly level since February 2006 and nearly 46 MMst lower than last August's stockpiles, according to its short-term energy outlook dated June 10. (1.usa.gov/1eEZgbw)
Extreme cold affected the performance of air brakes, resulting in shorter trains and fewer cars, while the snow short-circuited electric motors, froze switches and kept crews from reaching locomotives, according to a report by Wood Mackenzie. Keeping coal cars outside as they waited to be unloaded caused the coal to freeze, causing delays in getting the coal off the cars, the report said.
Slow delivery of coal is also forcing utilities to cut back on coal and preserve some inventories for peak summer months, forcing them to use more costly natural gas.
Delivered coal prices are at about $2 per million British thermal units (mmBtu), nearly half those of natural gas, which is trading at about $4 per mmBtu.
Utilities are more likely to turn to natural gas instead of buying coal from other basins as most plants are built to burn one type of coal, said Matthew Preston, principal analyst at Wood Mackenzie.
Thermal coal demand is also expected to fall sharply, thanks to a new U.S. mandate that requires the power sector to cut carbon emissions by 30 percent by 2030. But the ruling is unlikely to affect current demand given the long compliance period.
To help speed up coal deliveries, BNSF has earmarked $5 billion as capital expenditure, a large portion of which will go toward buying locomotives.
BNSF, which analysts say is the worst-hit railroad in the region, also plans to add additional tracks and is targeting a return to 2013 service levels by the fourth quarter.
"Railroads recognize the problems in terms of insufficient labor and equipment to handle the volume, and they've pledged to fix it, but they're not there yet," Alpha Natural said in an e-mailed statement.
Union Pacific's coal volume is up 5.5 percent year-to-date, which the company said was higher than it had anticipated.
The company is planning to invest around $4.1 billion this year, which is about $500 million higher than in 2013.
"Our train velocity is not yet back to normal or goal, but we are working diligently to restore operations to normal," Union Pacific spokeswoman Stephanie Bissell Serkhoshian said in an email. (Editing by Sayantani Ghosh in Bangalore and John Pickering in New York)