COUNTIES · EAST TEXAS · DISTRICT 05 · CODE 289
Leon County, Texas
Leon County permitting is running 2.3 permits a month over the trailing 90 days (7 total, versus 8 in the prior quarter). 1 was issued in the past week.
Comstock Oil & Gas, LLC leads with 14 permits in the past 12 months, one of 5 operators active in the county.
3 operators filed a first Leon County permit in the past year.
Median permitted depth over the past year is 18,519 ft (prior year: 30,000 ft); 60% of the past year's permits are horizontal.
The county has 60 active disposal and injection permits, with 1.43M barrels injected in the 12 months reported through June 2025.
2 earthquakes of magnitude 2 or more were located in the county's permit footprint over the past two years, the largest M3.4.
2,255 drilling permits have been issued in Leon County since 1977.
2,255 permits on file since 1977 · last issued Nov 2, 2026
Watch Leon CountyAlso: every Leon County well in the statewide list, searchable → · a year of permits on the map →
- 7
- permits issued, 90d
- -12%
- vs prior 90d (8)
- 2
- operators filing
- 57%
- horizontal
- 24,181
- avg permitted depth, ft
- 361
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 8, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 28 · prior 12 25(+12%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Comstock Oil & Gas, LLC | 14 | 64 |
| Hilcorp Energy Company | 13 | 160 |
| Maximus Operating, Ltd. | 1 | 4 |
| Barbee, R.L. Operating, Inc. | 1 | 1 |
| Terrain Water Solutions, LLC | 1 | 1 |
New entrants, last 12 months
Operators whose first permit in Leon County came in the last year. 3 in total.
- Maximus Operating, Ltd.1 permitJul 16, 2026 · active elsewhere first
- Barbee, R.L. Operating, Inc.1 permitDec 22, 2025 · active elsewhere first
- Terrain Water Solutions, LLC1 permitDec 8, 2025 · active elsewhere first
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Leon County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
Fewer than ten wells in Leon County report the Midway, so it is below this table's cutoff. Back to the formation →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Woodbine | 558 | 34 | 6,700 | 5,668–7,609 |
| Austin Chalk | 538 | 2 | 6,164 | 5,074–7,084 |
| Pettit | 532 | 46 | 9,044 | 8,717–9,843 |
| Travis Peak | 529 | 46 | 9,400 | 9,032–10,296 |
| Buda | 473 | 1 | 7,418 | 5,660–8,390 |
| Glen Rose | 460 | 35 | 8,822 | 7,160–9,610 |
| Rodessa | 267 | 35 | 8,460 | 8,021–9,208 |
| Cotton Valley | 259 | 40 | 12,500 | 11,898–14,873 |
| Bossier | 245 | 39 | 13,300 | 12,847–14,778 |
| Pecan Gap | 242 | 1 | 5,077 | 4,070–6,091 |
| Sub-Clarksville | 228 | 15 | 6,394 | 5,388–7,439 |
| Paluxy | 196 | 0 | 8,874 | 7,084–9,462 |
| BMA | 151 | 8 | 8,167 | 7,957–8,536 |
| Georgetown | 147 | 0 | 7,788 | 7,007–8,545 |
| James Lime | 137 | 0 | 9,213 | 8,770–10,426 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 60
- active UIC permits of 185
- 254K
- permitted bbl/day, active
- 1.43M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Leon County →
Permitted volume is a ceiling, not throughput. How to read it →
USGS catalog, Texas
Seismicity, last 2 years
- 2
- M2+ events in the area
- M3.4
- largest
Monthly counts, magnitudes, and every recent event in the area →
Events are not tagged with a county; this counts M2+ events inside the bounding box of the county’s located permits, padded 0.1°. About TexNet →
Latest permits
NEWEST FIRST BY ISSUE DATE
| Permit | Seen | Issued | Operator | Lease / well | Depth | API |
|---|---|---|---|---|---|---|
| 919825 | Nov 4, 2026 | Nov 2, 2026 | Hilcorp Energy Company | Upr/T-Bar-X King Cobra #1 | 18,038 | 28931266 |
| 919172 | Oct 10, 2026 | Oct 8, 2026 | Hilcorp Energy Company | Samet Gas Unit #3 | 16,031 | 28931814 |
| 918464 | Sep 27, 2026 | Sep 25, 2026 | Comstock Oil & Gas, LLC | Haynie FD #1HH | 30,000 | 28932236 |
| 918505 | Sep 16, 2026 | Sep 14, 2026 | Hilcorp Energy Company | Harrell 'C' #4 | 15,200 | 28931938 |
| 918465Amendment | Sep 27, 2026 | Sep 11, 2026 | Comstock Oil & Gas, LLC | Farley HG #1HH | 30,000 | 28932237 |
| 918410 | Sep 13, 2026 | Sep 11, 2026 | Comstock Oil & Gas, LLC | Stroud GV #1HH | 30,000 | 28932235 |
| 918465 | Sep 13, 2026 | Sep 11, 2026 | Comstock Oil & Gas, LLC | Farley HG #1HH | 30,000 | 28932237 |
| 917941 | Aug 27, 2026 | Aug 25, 2026 | Comstock Oil & Gas, LLC | Neyland ML #1HH | 30,000 | 28932234 |
| 917468 | Jul 31, 2026 | Jul 31, 2026 | Comstock Oil & Gas, LLC | Holt MHP B #2HH | 30,000 | 28932233 |
| 917469 | Jul 31, 2026 | Jul 31, 2026 | Comstock Oil & Gas, LLC | Holt MH C #3HH | 30,000 | 28932232 |
Questions about Leon County
How many drilling permits were issued in Leon County in the last 12 months?
30 permits were issued in Leon County in the last 12 months, up 25% from 24 in the 12 months before. 60% were for horizontal wells. The most recent was issued Nov 2, 2026. 2,255 are on file since 1977.
Every Leon County permit →Who is the most active operator in Leon County?
By drilling permits filed in the last 12 months, Comstock Oil & Gas, LLC is the most active operator in Leon County, with 14 of 30, followed by Hilcorp Energy Company (13) and Maximus Operating, Ltd. (1). 2 operators filed permits here in the last 90 days.
Operators in Leon County →How many oil and gas wells are in Leon County?
2,280 wells are on file in Leon County, including 772 active, 787 plugged, and 11 permitted and not yet drilled. 237 are horizontal. The active wells are under 53 operators.
Every well in Leon County →How much oil and gas does Leon County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Leon County is listed with its reported production on the county's Leases tab.
Leases in Leon County →How much water is injected in Leon County?
1.4 million barrels of water were injected in Leon County in the 12 months through June 2025, reported on form H-10. 60 of the county's 185 disposal and injection permits are active.
Disposal and injection in Leon County →What formations are drilled in Leon County?
Completion filings for wells in Leon County report tops for 15 formations in at least ten wells each. The most reported are the Woodbine (558 wells, median top 6,700 ft), the Austin Chalk (538 wells, median top 6,164 ft), and the Pettit (532 wells, median top 9,044 ft).
Formations in Leon County →What basin is Leon County in?
Petrora lists Leon County in the East Texas. It is in the Railroad Commission's District 05.
The East Texas →Have there been earthquakes in Leon County?
2 earthquakes of magnitude 2 or more were located in the area of Leon County's permitted wells in the last 2 years; the largest was M3.4.
Earthquakes in Leon County →About this data
Drilling permits from the RRC OGA049M master and daily daf420 files, rebuilt nightly into per-county figures; windows are on the date issued. Disposal from UIC permits and H-10 reports at the last settled month; earthquakes from the TexNet catalog inside the county's located-permit footprint.
Developers: this page as JSON is GET /v1/data/counties/tx/leon?days=90, documented in the API reference.