Based on $7.00/BTU about $24000/day <A HREF="http://www.aga.org/Content/NavigationMenu/About_Natural_Gas/Natural_Gas_Glossary/Natural_Gas_Glossar.." target="_blank">http://www.aga.org/Content/NavigationMenu/About_Natural_Gas/Natural_Gas_Glossary/Natural_Gas_Glossar...</A>. <A HREF="http://www.onlineconversion.com/forum/forum_1038451235.htm" target="_blank">http://www.onlineconversion.com/forum/forum_1038451235.htm</A> <A HREF="http://tonto.eia.doe.gov/oog/info/ngw/ngupdate.asp" target="_blank">http://tonto.eia.doe.gov/oog/info/ngw/ngupdate.asp</A> easier link <A HREF="http://www.eia.doe.gov/kids/energyfacts/science/unitsindex.html" target="_blank">http://www.eia.doe.gov/kids/energyfacts/science/unitsindex.html</A>