Will coal be new energy king?

Warren Buffett's acquisition of the remaining 77.4 percent of Burlington Northern Santa Fe (BNSF) railroad his Berkshire Hathaway does not already own looks like a strategic bet that America's future energy needs will be met, in large part, through a massive expansion in coal-fired power generation coupled with carbon capture and storage (CCS).

Coal is the most important item moved on BNSF's railroads. It accounted for almost half the tonnage moved by BNSF in the first nine months of 2009 (214 billion revenue ton miles out of a total of 444 billion) and a quarter of the company's revenues ($2.7 billion out of a total of $10.4 billion).

BNSF's track and rights of way are perfectly positioned to benefit from a massive expansion of the country's coal-fired output in the next 20 years, coupled with CCS technology to curb the carbon-dioxide emissions.