The internet is an amazing thing. I just stumbled across this today and spent an hour playing with it.
http://maps.kgs.ku.edu/oilgas/index.cfm
Shows every oil/gas/water well in KS. I can look at my grand parents old farm and see they have 3 water wells, 2 completed in 1976 under my GPA's name and 1 in 2007 under my uncles name(GPA passed away in 2004).
I can also see that the plot of land my dad is inheriting (GMA passed away in march ) is next to some land where there is an oil well that was completed in 2012. You can click the well and see who owns it(Long lost cousins apparently), how much it has produced every month etc etc. You can even see the core samples from the drilling in PDF's, just crazy stuff.
this is cool, my grandpa has 6 wells in SEK, really interesting. Great grandfather drilled a ton in SEK and NEO in the 40's and 50's and his name pops up all over the place.
I need to do more research about this as I can't find any of the water wells on our property. Really cool map.
The water well data that is shown on the KGS map is pulled from the Water Well Completion form database (WWC5). Well drillers and other people associated with punching holes to groundwater have to submit a WWC5 for each completed well. Kansas started the WWC5 database and groundwater protection act in 1974. So if you have groundwater wells on your property that were installed prior to 1974 and haven't been redrilled after 1974, they won't be on that map.
If your water wells have water rights associated with them, or if you aren't even sure they ever have, you can peruse the Kansas Division of Water Resources WIMAS system and see the available info and some interesting things.
Oil and gas wells equal money and their locations have been recorded since the late 1920s.