A couple of things!

1) Oklahoma 100% will accept and process a paper-filed return. I personally stick in a brightly colored piece of paper with a "this is why this return can't be e-filed" explanation, but the OTC has said to the Oklahoma Society of CPAs that they will not reject or penalize a paper-filed return. Mail that sucker in.

2) Oklahoma uses specific accounting, not apportionment, for oil & gas. You should be able to use a combination of the O&G screens and Screen 38.041 to get the right bottom line. The State if Different column in the other screens might be helpful to you, too.

3) I don't do the well-by-well depletion calculation in Lacerte, because even with a handful of wells, the dollar rounding becomes an issue. I calculate depletion in Excel, then make summary entries into Lacerte to get the right presentation. If you can transition to an Excel based depletion schedule, and if TT Business permits PDF attachments, you might be able to make that work. Heck, ProSeries (the "tax professional" version of TT) doesn't support depletion, and plenty of people do O&G returns using it, regardless.