I think an oil company might just as readily have its landman tell you he was instructed to stop leasing. I have had it happen three times. Perhaps your landman is no longer working for the company or has had a personal crisis. Was he a contract landman or an actual employee of Continental?
How about viewing
C41742 ASSIGNMENT OF LEASE
Grantor: 432 LAND CO LLC
Grantee: CONTINENTAL RESOURCES INC
Recording Date: 12/15/2023
Try to find contact information for lessors with minerals in Sec 13 and perhaps reach out to some of them for information?