Find IRS forms, instructions, publications, and notices for prior years back to 1864. View more information about Using IRS Forms, Instructions, Publications and Other Item Files. Click on a column heading to sort the list by the contents of that column. Enter a term in the Find box Click the Search button Showing 1 - 4 of 4Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 SearchClear Product Number Title Revision Date Form 8904 Marginal Wells Oil and Gas Production Credit 2018 Form 8904 Marginal Wells Oil and Gas Production Credit 2017 Instruction 8904 Instructions for Form 8904, Credit for Oil and Gas Products From Marginal Wells 2018 Instruction 8904 Instructions for Form 8904, Credit for Oil and Gas Products From Marginal Wells 2017