I have the following formula's to seperate out fuel (u=unleaded, d=diesel)
for Fiscal (7/1/09 - 6/30/09) and Calendar year. I'm looking for an average
of gallons of fuel formula for the Fiscal and Calendar year. Can anyone help?

mePenny

Calendar
=SUMPRODUCT((YEAR(A6:A100)=2009)*(B6:B100="u")*C6: C100)
=SUMPRODUCT((YEAR(A6:A101)=2009)*(B6:B101="d")*C6: C101)

Fiscal
=SUMPRODUCT(((YEAR(A6:A100)=2009)*(MONTH(A6:A100) =7)+(YEAR(A6:A100)=2010)*(MONTH(A6:A100)<=6))*(B6: B100="u")*C6:C100)

=SUMPRODUCT((TEXT(A6:A100,"yyyymm")="200907")*(TE XT(A6:A100,"yyyymm")<="201006")*(B6:B100="d")*C6:C 100)