Mumbai, April 15 -- Organization of the Petroleum Exporting Countries or OPEC noted that it's the energy price index declined for a second consecutive month in March, falling by 4.1%, m-o-m. Losses across all energy prices dragged down the index, led by a sharp decline in natural gas prices in the EU. The index was down by 8.8%, y-o-y, pressured by declines in coal and average crude oil prices, though these were partially offset by higher natural gas prices in both the US and the EU during the same period. Average crude oil prices experienced a consecutive monthly decline in March, falling by 4.2%, m-o-m. Henry Hub's natural gas prices receded in March after trending upwards for three consecutive months. The commodity closed the month down ...