Drilling Permit Master
Every approved W-1 since 1976 as one flat row per permit — 950,665 of them.
- Rows
- 951.6K
- Size
- 699.4 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Texas RRC datasets
The Railroad Commission publishes these as EBCDIC, fixed-width ASCII, dBase and shapefiles, described only in scanned COBOL manuals. Here they are with the record layouts, code lookups and join keys spelled out — and exports in formats a spreadsheet can open.
All datasets
Drilling Permit Master and Trailer
The complete W-1 permit history — every application since 1976 with every trailer segment, 13.5 million rows across fifteen tables.
- Rows
- 994.4K
- Size
- 409.6 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Drilling Permit Master and Trailer — Daily File (with latitudes and longitudes)
Every drilling permit application, refreshed nightly, with surface and bottomhole coordinates.
- Rows
- 116K
- Size
- 82.8 MB
- Updates
- Nightly
- Last seen
- 14 Sep 2026
Drilling Permit Master and Trailer — End of Month File (with latitudes and longitudes)
The same permits as the nightly file, cut once a month as a stable snapshot.
- Rows
- 116K
- Size
- 82.8 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Drilling Permits Pending Approval (with latitudes and longitudes)
Applications the Commission has received but not yet acted on, kept extract by extract.
- Rows
- 599
- Size
- 384.0 KB
- Updates
- Twice daily
- Last seen
- 14 Sep 2026
Horizontal Drilling Permits
Forty years of horizontal permits, each tied to the lease it ended up producing under.
- Rows
- 173.5K
- Size
- 124.9 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Drilling Permit (W-1) Imaged Files
Scanned W-1 permit forms and the plats filed with them.
- Size
- 952.6 MB
- Updates
- Nightly
- Last seen
- 14 Sep 2026
Full Wellbore Database (ASCII)
Every well ever assigned an API number in Texas, with casing, tubing, perforations, formations, plugging and inactive-well tests.
- Rows
- 1.2M
- Size
- 298.7 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Full Wellbore Database (EBCDIC)
The same wellbore database, in the raw IBM mainframe encoding.
- Rows
- 1.2M
- Size
- 298.7 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Completion Records
The lease and well identifiers each wellbore has been completed under.
- Rows
- 1.1M
- Size
- 122.0 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Form Dates
When each form was filed against a wellbore, plus elevation and plug-back depths.
- Rows
- 1.6M
- Size
- 227.0 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Formation Records
Named geological formations and the depth each was encountered at.
- Rows
- 2.1M
- Size
- 198.5 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Casing Records
Every casing string set in every Texas well: size, depth, hole size and cement.
- Rows
- 1.7M
- Size
- 209.4 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Perforation Records
The perforated intervals a well is completed through.
- Rows
- 1.1M
- Size
- 91.8 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Tubing Records
Tubing strings and packer depths.
- Rows
- 470.2K
- Size
- 46.9 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Remarks
Free-text remarks the Commission recorded against a wellbore.
- Rows
- 2.3M
- Size
- 284.9 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Plugging Records
W-3 plugging reports: when a well was plugged, to what depth, and with what.
- Rows
- 482.6K
- Size
- 99.8 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Drilling Permit Numbers
Every drilling permit number ever issued against a wellbore.
- Rows
- 705.1K
- Size
- 66.5 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Well Identifiers
The oil lease and well numbers a wellbore is identified by.
- Rows
- 667.7K
- Size
- 61.2 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore H-15 Inactive Well Tests
H-15 tests on inactive wells: who tested, when, and what the status was.
- Rows
- 1M
- Size
- 151.6 MB
- Updates
- Weekly
- Last seen
- 14 Sep 2026
Wellbore Query Data
The fifty-nine column extract behind the Commission's own public wellbore query.
- Rows
- 1.3M
- Size
- 838.4 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Statewide Oil Well Database
Every oil well on the proration schedule, with 26 months of allowables and its W-10 tests.
- Rows
- 292.7K
- Size
- 94.3 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Statewide Gas Well Database
Every gas well on the proration schedule, with its allowables, G-1 completions and G-10 tests.
- Rows
- 139K
- Size
- 36.2 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026
Oil Detail Well
The individual wells inside Texas waterflood units, with their last two W-10 tests.
- Rows
- 85.8K
- Size
- 37.4 MB
- Updates
- Monthly
- Last seen
- 14 Sep 2026