RPT-CERAWEEK-Severe U.S. winter opens door to questions for gas, power markets
March 07, 2014 at 07:49 AM EST
HOUSTON, March 6 (Reuters) - Natural gas pipelines and power utilities across the United States struggled for several weeks to keep lights on and homes warm through the coldest winter in decades, but it may take many months for the cost and the fallout of the so-called "polar vortex" to work through the energy chain.