limit order usage today external orders submitted 812 external orders filled 215 comparison numbers yesterday external orders submitted 116 external orders filled 13 list counterparties posted prices became web prices traded aep energy services inc allegheny energy supply company llc american electric power service corporation american municipal power ohio inc aquila energy marketing corporation aquila risk management corporation astra power llc bnp paribas bp corporation north america inc bp energy company cleco marketing trading llc cms marketing services trading company calpine energy services l p cargill energy division cargill incorporate cargill alliant llc cinergy marketing trading llc cinergy services inc colonial energy inc conagra energy services inc conectiv energy supply inc conoco inc consolidated edison solutions inc constellation power source inc cook inlet energy supply l l c coral energy canada inc coral energy holding l p coral energy resources l p cross timbers energy services inc dte energy trading inc duke energy trading marketing l l c dynegy canada inc dynegy marketing trade dynegy power marketing inc el paso merchant energy l p enron energy services inc entergy koch trading lp firstenergy services corp hq energy services u inc hess energy trading company llc j aron company kinder morgan texas pipeline l p louis dreyfus corporation marathon oil company mieco inc mirant americas energy marketing l p njr energy services company nrg power marketing inc nexen marketing nicor gas company northern indiana public service company oneok energy marketing trading company l p occidental energy marketing inc pg e energy trading power l p pg e energy trading gas corporation pseg energy resources trade llc pancanadian energy services inc petrocom energy group ltd power merchants group llc prior energy corporation reliant energy services inc sempra energy trading corp smith barney aaa energy fund l p txu energy trading company tenaska marketing ventures texaco natural gas inc texla energy management inc new power company tractebel energy marketing inc transalta energy marketing corp transcanada energy marketing usa inc usgt aquila l p virginia electric power company western gas resources inc williams energy marketing trading company xcel energy inc e prime inc