Can you provide a database, or excel spreadsheet with the location of
all oil/gas wells in texas?

Ideally, I'm looking for a table with API Number (a unique well
identifier code), the name of the well, and the location in
latitude/longitude coordinates.

I know the Texas Rail road commission provides some information, and I
am aware that there are multiple for fee data services (IHS, etc) but
I'm looking for something I can use instead of a pointer to another
potential source.

I was in the oil and gas industry in Texas until last year. Getting
info from the TRRC is like pulling teeth. I dont think there is a good
answer for finding "all" oil wells in texas. First the railroad
commission is about 3 months behind on all the info they can provide.
As far as API # you can research that but also it would depend on what
stage the well is in (drilling,completion, etc) Our company had a
membership to a great website with probably the best info available
the fastest, www.drillinginfo.com; but this is quite expensive. It is
really the only thing that helped us out. Also there are
people/companies that will do the research for you. We had a guy in
Austin that would actually go to the courthouses and pull all filings
for any particular well that included land platt, operator info,
ownership, the drill, the geology and any other info just by giving
him the API#. If i am correct the guy we used charged about $50 per
well or  would do a group at a time discounted. Hope this helps I
guess it mainly depends on what you are looking for.