00725nab a2200157 4500 20260520002714.0 260224s xxu A structural change begins US coal trading 12/09/06 ; 14/03/2005 2 p. With energy markets experiencing extreme price volatility, the need for hedging has never been greater. Historically, coal was considered unsuitable for financial trades, but the development of an OTC and futures market in the US is providing security for producers and consumers. Petroleum Economist Vol. 72, no. 2 (feb. 2005) ; p. 32-33 ARTICULO Lask, Ellen 35553 163737 163737 0 0 0 0 231556 BAAB BAAB 2026-03-05 200035120 0 200035120 2026-03-05 14:01:15 2026-03-05 ARTICULO