the best places to look for QC is through eVgo - they own all the current ones in Texas and their map is up-to-date:
https://www.evgonetwork.com/find-a-station/" onclick="window.open(this.href);return false;
Both Blink (now owned by car charging) and ChargePoint do install DC chargers, but they have none in Texas (yet).
If you are trying to go from fort worth to Houston that will be hard - you will need to find some level 2's around in between (and it will most likely be dealerships). There are no QCs in between. On IH 45 there is really nothing between IH 20 in Dallas and Huntsville, if you went to Houston you would most likely need to go to waco and then SH 6 to College Station and then to Houston.
Recargo probably has the best overall station location guide - especially since they paired with plugshare:
http://www.recargo.com/search" onclick="window.open(this.href);return false;
Plugshare is nice, but its mostly crowd sourced so sometimes it will have the wrong information:
http://www.plugshare.com/" onclick="window.open(this.href);return false;
Also, since it appers you are in the DFW area, I maintain a map of all the charging stations in the metroplex (plus a list of cost and how to access all the stations owned by different companies). I keep it updated and even add pictures and ground-truth some as well so the markers are in the correct places:
https://maps.google.com/maps/ms?msid=21 ... cf11&msa=0" onclick="window.open(this.href);return false;
And congradulations on your leaf!