Ok, I played with it a little and got it to work. My month names all need to be 3 characters - didn't know that. Thank you for all your help, this works brilliantly.
If you need the month complete use this array formula:
=SUM(
IF(E4=TEXT(MyDate,"mmmm"),MyAmt))
Excel 2007<TABLE style="BORDER-BOTTOM: #a6aab6 1px solid; BORDER-LEFT: #a6aab6 1px solid; BACKGROUND-COLOR: #ffffff; BORDER-COLLAPSE: collapse; BORDER-TOP: #a6aab6 1px solid; BORDER-RIGHT: #a6aab6 1px solid" rules=all cellPadding=2><COLGROUP><COL style="BACKGROUND-COLOR: #e0e0f0" width=25><COL><COL></COLGROUP><THEAD><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #e0e0f0; COLOR: #161120"><TH></TH><TH>I</TH><TH>J</TH></TR></THEAD><TBODY><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">3</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">January</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">4</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">February</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">5</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">March</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">6</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">April</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">7</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">May</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$75.01 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">8</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">June</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$113.95 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">9</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">July</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$45.60 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">10</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">August</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">11</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">September</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">12</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">October</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">13</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">November</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR><TR><TD style="TEXT-ALIGN: center; COLOR: #161120">14</TD><TD style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #a5a5a5; COLOR: #ffffff; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">December</TD><TD style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right; BORDER-LEFT: black 1px solid; BACKGROUND-COLOR: #f2f2f2; COLOR: #3f3f3f; BORDER-TOP: black 1px solid; FONT-WEIGHT: bold; BORDER-RIGHT: black 1px solid">$0.00 </TD></TR></TBODY></TABLE>
Gas
<TABLE style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; PADDING-BOTTOM: 0.4em; BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 0.4em; PADDING-RIGHT: 0.4em; BORDER-COLLAPSE: collapse; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid; PADDING-TOP: 0.4em" rules=all cellPadding=2 width="85%"><TBODY><TR><TD style="PADDING-BOTTOM: 6px; PADDING-LEFT: 6px; PADDING-RIGHT: 6px; PADDING-TOP: 6px">
Array Formulas<TABLE style="BORDER-BOTTOM: #a6aab6 1px solid; TEXT-ALIGN: center; BORDER-LEFT: #a6aab6 1px solid; BACKGROUND-COLOR: #ffffff; BORDER-COLLAPSE: collapse; BORDER-TOP: #a6aab6 1px solid; BORDER-RIGHT: #a6aab6 1px solid" rules=all cellPadding=2 width="100%"><THEAD><TR style="BACKGROUND-COLOR: #e0e0f0; COLOR: #161120"><TH width=10>Cell</TH><TH style="TEXT-ALIGN: left; PADDING-LEFT: 5px">Formula</TH></TR></THEAD><TBODY><TR><TH style="BACKGROUND-COLOR: #e0e0f0; COLOR: #161120" width=10>J3</TH><TD style="TEXT-ALIGN: left">{=SUM(
IF(I3=TEXT(MyDate,"mmmm"),MyAmt))}</TD></TR></TBODY></TABLE>
Entered with Ctrl+Shift+Enter. If entered correctly, Excel will surround with curly braces {}.
Note: Do not try and enter the {} manually yourself
</TD></TR></TBODY></TABLE>
<TABLE style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; PADDING-BOTTOM: 0.4em; BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 0.4em; PADDING-RIGHT: 0.4em; BORDER-COLLAPSE: collapse; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid; PADDING-TOP: 0.4em" rules=all cellPadding=2 width="85%"><TBODY><TR><TD style="PADDING-BOTTOM: 6px; PADDING-LEFT: 6px; PADDING-RIGHT: 6px; PADDING-TOP: 6px">
Workbook Defined Names<TABLE style="BORDER-BOTTOM: #a6aab6 1px solid; TEXT-ALIGN: center; BORDER-LEFT: #a6aab6 1px solid; BACKGROUND-COLOR: #ffffff; BORDER-COLLAPSE: collapse; BORDER-TOP: #a6aab6 1px solid; BORDER-RIGHT: #a6aab6 1px solid" rules=all cellPadding=2 width="100%"><THEAD><TR style="BACKGROUND-COLOR: #e0e0f0; COLOR: #161120"><TH width=10>Name</TH><TH style="TEXT-ALIGN: left">Refers To</TH></TR></THEAD><TBODY><TR><TH style="BACKGROUND-COLOR: #e0e0f0; COLOR: #161120" width=10>MyAmt</TH><TD style="TEXT-ALIGN: left">=INDIRECT(
"D$4:D$"&(SUM(--(Gas!$D$4:$D$1000<>""))+ROWS(Gas!$D$1:$D$3)))</TD></TR><TR><TH style="BACKGROUND-COLOR: #e0e0f0; COLOR: #161120" width=10>MyDate</TH><TD style="TEXT-ALIGN: left">=INDIRECT(
"A$4:A$"&(SUM(--(Gas!$A$4:$A$1000<>""))+ROWS(Gas!$A$1:$A$3)))</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
And thanks for the feedback.
Markmzz