You can look the wells up on the OCC records site. Search by surface location or name if you know it. Look for the permit which is File 1000. It may or may not have the the lat/long but it will have a tighter location to a particular quarter section. And often a small map. You can also look up the SURVEY for the newer wells and they will have the lat/long. Here is a map with the township and ranges with the roads.
McClain County Map.pdf (343.5 KB)