COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 245
Jefferson County, Texas
Jefferson County permitting is running 1.3 permits a month over the trailing 90 days (4 total, versus 8 in the prior quarter).
Exxonmobil Low C Sol on Stor LLC leads with 12 permits in the past 12 months, one of 8 operators active in the county.
4 operators filed a first Jefferson County permit in the past year.
Median permitted depth over the past year is 7,744 ft (prior year: 8,000 ft); 0% of the past year's permits are horizontal.
The county has 145 active disposal and injection permits, with 47.7M barrels injected in the 12 months reported through June 2025.
3,040 drilling permits have been issued in Jefferson County since 1977.
3,040 permits on file since 1977 · last issued Oct 22, 2026
Watch Jefferson CountyAlso: every Jefferson County well in the statewide list, searchable → · a year of permits on the map →
- 4
- permits issued, 30d
- —
- vs prior 30d (0)
- 1
- operators filing
- 0%
- horizontal
- 458
- avg permitted depth, ft
- 454
- 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 13(+92%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
New entrants, last 12 months
Operators whose first permit in Jefferson County came in the last year. 4 in total.
- Kinder Morgan Texas Pipeline LLC4 permitsOct 14, 2026 · active elsewhere first
- Gepard Energy Inc1 permitJul 29, 2026 · new to Texas permits
- Rusk Energy Operating LLC1 permitMar 5, 2026 · active elsewhere first
- Magnetar Operating LLC1 permitNov 13, 2025 · active elsewhere first
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Jefferson County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 145
- active UIC permits of 396
- 5.4M
- permitted bbl/day, active
- 47.7M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Jefferson County →
Permitted volume is a ceiling, not throughput. How to read it →
TexNet catalog via USGS
Seismicity, last 2 years
- 0
- M2+ events in the area
- —
- 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 |
|---|---|---|---|---|---|---|
| 918943 | Oct 24, 2026 | Oct 22, 2026 | Kinder Morgan Texas Pipeline LLC | Tip-219 #1 | 450 | 24532943 |
| 918942 | Oct 24, 2026 | Oct 22, 2026 | Kinder Morgan Texas Pipeline LLC | Tip-206 #1 | 480 | 24532942 |
| 918944 | Oct 24, 2026 | Oct 22, 2026 | Kinder Morgan Texas Pipeline LLC | Kmlp-03 #1 | 450 | 24532944 |
| 918939 | Oct 16, 2026 | Oct 14, 2026 | Kinder Morgan Texas Pipeline LLC | Tip-202 #1 | 450 | 24532941 |
| 917179 | Jul 29, 2026 | Jul 29, 2026 | Gepard Energy Inc | McFaddin Trust #91ST | 6,500 | 24531934 |
| 917427 | Jul 27, 2026 | Jul 27, 2026 | Golden Triangle Storage, LLC | Golden Triangle Storage #11 | 8,500 | 24532940 |
| 917282 | Jul 20, 2026 | Jul 20, 2026 | Kingwood Exploration LLC | McFaddin Ranch #15ST | 7,773 | 24532841 |
| 917269 | Jul 20, 2026 | Jul 20, 2026 | Kingwood Exploration LLC | McFaddin Ranch #13ST | 7,735 | 24532060 |
| 916905 | Jul 7, 2026 | Jul 7, 2026 | Golden Triangle Storage, LLC | Golden Triangle Storage #10 | 8,500 | 24532939 |
| 916286 | Sep 10, 2026 | Jun 10, 2026 | Exxonmobil Low C Sol on Stor LLC | Sunflower 2 Azm #2 | 4,000 | 24532938 |
Questions about Jefferson County
How many drilling permits were issued in Jefferson County in the last 12 months?
26 permits were issued in Jefferson County in the last 12 months, up 100% from 13 in the 12 months before. 0% were for horizontal wells. The most recent was issued Oct 22, 2026. 3,040 are on file since 1977.
Every Jefferson County permit →Who is the most active operator in Jefferson County?
By drilling permits filed in the last 12 months, Exxonmobil Low C Sol on Stor LLC is the most active operator in Jefferson County, with 12 of 26, followed by Kinder Morgan Texas Pipeline LLC (4) and Golden Triangle Storage, LLC (3). 1 operator filed permits here in the last 90 days.
Operators in Jefferson County →How many oil and gas wells are in Jefferson County?
3,360 wells are on file in Jefferson County: 311 active, 1,800 plugged, and 19 permitted and not yet drilled. 5 are horizontal, and 41 operators hold them.
Every well in Jefferson County →How much oil and gas does Jefferson County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Jefferson County is listed with its reported production on the county's Leases tab.
Leases in Jefferson County →How much water is injected in Jefferson County?
47.7 million barrels of water were injected in Jefferson County in the 12 months through June 2025, reported on form H-10. 145 of the county's 396 disposal and injection permits are active.
Disposal and injection in Jefferson County →What formations are drilled in Jefferson County?
Completion filings for wells in Jefferson County report tops for 7 formations in at least ten wells each. The most reported are the Frio (305 wells, median top 7,538 ft), the Miocene (undifferentiated) (260 wells, median top 3,347 ft), and the Yegua (77 wells, median top 11,800 ft).
Formations in Jefferson County →What basin is Jefferson County in?
Petrora lists Jefferson County in the Texas Gulf Coast. It is in the Railroad Commission's District 03.
The Texas Gulf Coast →Have there been earthquakes in Jefferson County?
TexNet located no earthquakes of magnitude 2 or more in the area of Jefferson County's permitted wells in the last 2 years.
Earthquakes in Jefferson 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/jefferson?days=30, documented in the API reference.