Welcome back to the forum!
Some suggestions for getting started-not the only way, but this works for our family.
1-sort all the files into County and then Township, Range and then Section so that they are geographically in order. (Don’t sort by section first at this time as you want to order by the township) In each file, put the oldest documents at the back and work toward the front so you can understand the history of each tract. If you have more than one tract in each section, separate them out by description.
2- There is a set of maps for most of the OK counties posted on the forum. I will hunt for the location.
3-get to know the Oklahoma Corporation website. It is free and has most of what you need. http://www.occeweb.com Home Page. The Conducting Business-Imaged Documents tab, Divisions Tab, Conducting Business Unlocated Mineral Owners and Dockets tab are your friends.
a. http://imaging.occeweb.com has the data bases. You will be using the case files and the well records mostly.
b.The OAP cases tab - OAP documents the OCC court cases. Best place to start. Case Processing Online Use the section township range order to search. Example 0105N06W. Use leading zero if needed. Find the cases that go with your sections and follow them by case number and date. You can save digital copies.
b. Using the section-township-range order with section order, use the well records site to hunt for wells. Test. They will be located by surface location. Old vertical wells most likely in your section, but any new horizontal wells may have surface locations several sections away.
c. The OK tax site. Gross Production
For some strange reason, the wells are usually posted by their bottom hole location here, but not always. So I start with the bottom hole and work up the hole by section until I find it. You can also search by name of the well.
d. Your probate will have to be filed in each county where you have minerals. Hence the sorting order of part a.
e. You will need to contact each operator for the royalty checks that you get right now and notify them of the change in title. They will probably require a copy of the probate documents.
Each heir will need to file their own documents at the county and contact each operator.
Start with these actions and then come back with questions.
Did the executor get a fair market evaluation done for the probate? Several point to discuss on that in a different post.