COUNTIES · EAGLE FORD SHALE · DISTRICT 01 · CODE 323
Maverick County, Texas
Maverick County permitting is running 0.7 permits a month over the trailing 90 days (2 total, versus 6 in the prior quarter).
Jonah Energy LLC leads with 13 permits in the past 12 months, one of 5 operators active in the county.
One operator filed a first Maverick County permit in the past year.
Median permitted depth over the past year is 3,999 ft; 80% of the past year's permits are horizontal.
The county has 272 active disposal and injection permits, with 3.38M barrels injected in the 12 months reported through June 2025.
TexNet located 17 earthquakes of magnitude 2 or more in the county's permit footprint over the past two years, the largest M3.6.
3,122 drilling permits have been issued in Maverick County since 1977.
3,122 permits on file since 1977 · last issued Sep 16, 2026
Watch Maverick CountyAlso: every Maverick County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 30d
- -100%
- vs prior 30d (2)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 232
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 6, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 25 · prior 12 30(-17%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Jonah Energy LLC | 13 | 107 |
| Blackbrush O & G, LLC | 4 | 17 |
| El Toro Resources LLC | 3 | 60 |
| Texas Pipeline LLC | 3 | 0 |
| Endeavor Natural Gas, LP | 2 | 18 |
New entrants, last 12 months
Operators whose first permit in Maverick County came in the last year. 1 in total.
- Jonah Energy LLC13 permitsApr 20, 2026 · new to Texas permits
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Maverick County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| San Miguel | 1,339 | 53 | 1,527 | 1,270–2,800 |
| Olmos | 466 | 50 | 1,050 | 521–2,120 |
| Georgetown | 357 | 1 | 3,060 | 2,158–5,091 |
| Buda | 344 | 1 | 2,810 | 1,794–4,709 |
| Eagle Ford | 342 | 5 | 2,666 | 1,425–4,841 |
| Austin Chalk | 304 | 16 | 1,376 | 652–3,374 |
| Del Rio | 297 | 1 | 2,850 | 1,941–4,874 |
| Glen Rose | 169 | 0 | 5,700 | 3,865–6,311 |
| McKnight | 159 | 0 | 5,180 | 3,151–5,714 |
| Edwards | 140 | 0 | 5,575 | 3,400–6,032 |
| Anacacho | 120 | 4 | 2,691 | 669–3,405 |
| Escondido | 100 | 21 | 900 | 360–1,117 |
| Pearsall | 28 | 0 | 6,594 | 5,911–8,646 |
| Rodessa | 15 | 0 | 5,491 | 4,836–6,204 |
| James Lime | 12 | 0 | 6,723 | 6,116–9,072 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 272
- active UIC permits of 838
- 52.2K
- permitted bbl/day, active
- 3.38M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Maverick County →
Permitted volume is a ceiling, not throughput. How to read it →
TexNet catalog via USGS
Seismicity, last 2 years
- 17
- M2+ events in the area
- M3.6
- 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 |
|---|---|---|---|---|---|---|
| 918665 | Sep 18, 2026 | Sep 16, 2026 | Texas Pipeline LLC | CP#26-162 Cathodic Protection #44 | 300 | 32333700 |
| 918667 | Sep 18, 2026 | Sep 16, 2026 | Texas Pipeline LLC | Cp# 26-161 #43 | 300 | 32333701 |
| 916561 | Jun 19, 2026 | Jun 19, 2026 | El Toro Resources LLC | Comanche #1513HH | 4,300 | 32333699 |
| 916560 | Jun 19, 2026 | Jun 19, 2026 | El Toro Resources LLC | Comanche #1512HH | 4,300 | 32333698 |
| 916559 | Jun 19, 2026 | Jun 19, 2026 | El Toro Resources LLC | Comanche #1511HH | 4,300 | 32333697 |
| 916214 | Jun 9, 2026 | Jun 9, 2026 | Texas Pipeline LLC | Cp# 26-105 Cathodic Protection #37 | 330 | 32333696 |
| 915831 | May 21, 2026 | May 21, 2026 | Blackbrush O & G, LLC | Chittim Heirs B #20HH | 4,800 | 32333694 |
| 915817 | May 21, 2026 | May 21, 2026 | Blackbrush O & G, LLC | Chittim Heirs A #19HH | 4,800 | 32333695 |
| 915439 | May 8, 2026 | May 8, 2026 | Blackbrush O & G, LLC | Chittim #404 | 10,000 | 32333693 |
| 915391 | May 6, 2026 | May 6, 2026 | Jonah Energy LLC | Serena Ranch #6308HH | 3,999 | 32333692 |
Questions about Maverick County
How many drilling permits were issued in Maverick County in the last 12 months?
25 permits were issued in Maverick County in the last 12 months, down 17% from 30 in the 12 months before. 80% were for horizontal wells. The most recent was issued Sep 16, 2026. 3,122 are on file since 1977.
Every Maverick County permit →Who is the most active operator in Maverick County?
By drilling permits filed in the last 12 months, Jonah Energy LLC is the most active operator in Maverick County, with 13 of 25, followed by Blackbrush O & G, LLC (4) and El Toro Resources LLC (3). 1 operator filed permits here in the last 90 days.
Operators in Maverick County →How many oil and gas wells are in Maverick County?
3,775 wells are on file in Maverick County: 987 active, 1,980 plugged, and 5 permitted and not yet drilled. 526 are horizontal, and 23 operators hold them.
Every well in Maverick County →How much oil and gas does Maverick County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Maverick County is listed with its reported production on the county's Leases tab.
Leases in Maverick County →How much water is injected in Maverick County?
3.4 million barrels of water were injected in Maverick County in the 12 months through June 2025, reported on form H-10. 272 of the county's 838 disposal and injection permits are active.
Disposal and injection in Maverick County →What formations are drilled in Maverick County?
Completion filings for wells in Maverick County report tops for 15 formations in at least ten wells each. The most reported are the San Miguel (1,339 wells, median top 1,527 ft), the Olmos (466 wells, median top 1,050 ft), and the Georgetown (357 wells, median top 3,060 ft).
Formations in Maverick County →What basin is Maverick County in?
Petrora lists Maverick County in the Eagle Ford Shale. It is in the Railroad Commission's District 01.
The Eagle Ford Shale →Have there been earthquakes in Maverick County?
TexNet located 17 earthquakes of magnitude 2 or more in the area of Maverick County's permitted wells in the last 2 years; the largest was M3.6.
Earthquakes in Maverick 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/maverick?days=30, documented in the API reference.