Robert,
I’m sorry to hear about your situation. I suspected that you may not own the minerals (at least in Newfield’s opinion) when you mentioned that you had not heard anything prior to production. Oklahoma’s Corporation Commission requires that all owners, leased or unleased, be given notice prior to a pooling hearing. However, they leave it to the applicant (i.e. Newfield) to determine who those people are, so if Newfield doesn’t identify you as an owner you wouldn’t have gotten notice.
One important point you should understand is that just because an oil company (or a few) determines your mineral ownership doesn’t meant they are correct. Your situation is a perfect example - Newfield doesn’t think you own the minerals, but several other companies in the past (and presumably a mineral buyer) thought you might. One of those camps is obviously wrong.
I would be suspicious of the outlier in your situation. Several companies in the past have made independent determinations of mineral ownership in the property, and Newfield is the only one (that we know of) to determine that you don’t own the minerals. That’s at least a decent indication that Newfield may be wrong. I definitely would not take Newfield’s word that I don’t own the minerals in this case.
Ultimately, you can only rely on your own independent determination of your ownership (which should be supplied by a qualified professional). Having that information will help you recognize when your interest is not being calculated properly. And, if you dispute Newfield’s claim that you don’t own any minerals, they have no obligation to explain to you how they made that determination. Rather, the burden will be on you to prove to them that they are wrong. When that happens, most companies will try to correct the situation in a manner that is fair to the true owner, but that’s a bridge best crossed once you come to it.
If you choose to try and convince them of your ownership, you have a few choices. At minimum, you can try to research the ownership history of the mineral rights on your own for a nominal cost plus your time in the courthouse. Far better would be to hire a qualified Landman with ample experience with Oklahoma mineral titles to give you “abstract” of all the documents they find from the history of your property’s mineral ownership. Assuming the Landman is competent, that will probably give you a good indication of what you own, if anything, although this will probably cost at least a couple thousand dollars to do. Last, you can hire an attorney to make a legal opinion of the mineral ownership based on that abstract, which will be thousands more, but probably isn’t necessary unless Newfield disputes your landman’s determination and you intend to sue them.
Of course, another significant option is to strongly consider selling if you can find a willing buyer and a price you can live with, especially if you truly doubt your ownership. Just be aware that if you do sell, you will want to Quitclaim the minerals or otherwise explicitly state in the deed that you don’t warrant ownership of the minerals, even for return of the purchase price. That will save you a lot of trouble down the road if title is no good.
I hope things eventually get resolved in your favor. Good luck.