I just realized that I had inadvertently pasted the same link twice above - here's the OLD GIS Viewer that I prefer. http://gis2.rrc.state.tx.us/public/startit.htm
In the Map Tools drop down, click on 'Identify Wells'. In the Counties dropdown, click on Terry county. Then click on Survey/Abstract, and in the popup, put Terry in the county box, enter 1523 in the A box, 18 in the Section box, and M in the Block box, then click Search. In the results, click on Map in the left column. This should take you to the section they have interest in, and you can 'zoom out' to see any activity around there. That particular section doesn't/hasn't had any activity, but there's been activity northwest a few miles and numerous dry holes around it. (Click on Legend to see what the symbols mean.)
The info on the map refers to the Abstract that was originally done in the late 1800's/early 1900s. "Way back when" this area was being settled, individuals and lots of railroad companies would survey the land - the original survey for this section was done by AB&M - that's the one that should be in the legal description of the land --- AB&M Survey, Block M, Section 18, Abstract 1523 - used in deeds, mineral leases, etc. (Block T, Section 48, Abstract 578 was surveyed by D&W Rail Road Company.) I've never understood what the 'Alternate Survey Name' (ex. J.E. Hudgens) is for - all the hundreds of legal documents I have use the original survey name.