Horizontal Drilling Permits
A monthly horizontal-only extract: issue date, permit number, API number and permitted field.
What this is
A deliberately narrow file — four columns, horizontal permits only. RRC publishes it for people who want the horizontal drilling signal without reading the whole permit master.
Everything in it is also in the full permit file, where the horizontal flag is a column you can filter on.
How it is laid out
The Railroad Commission publishes this as Fixed-width ASCII. Columns are byte ranges with no separators, described only in a scanned record layout. We mirror the Commission's file exactly as they published it, byte for byte. We have not decoded this one into a table yet, so reading it needs the right tooling.
What we add
Get a small, fast horizontal permit list keyed by API number and permitted field, without downloading the full master.
- Mirrored so the file is here when the Commission's own link is not.
- Documented — what it is, where it came from, and when we last fetched it.
Worth knowing before you use it
It carries no operator, no lease and no coordinates. For anything beyond counting, use the daily permit file and filter on the horizontal flag instead.
EZRRC does not parse this file. Upstream has not built a reader for it yet, so the catalog documents it and links to the Commission's own copy rather than pretending …
The full page lists every trap in this dataset.