COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 245
Jefferson County, Texas
4 drilling permits were issued in Jefferson County in the past 90 days, 6 in the 90 days before.
Exxonmobil Low C Sol on Stor LLC leads with 11 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 7,753 ft (prior year: 8,000 ft); 0% of the past year's permits are horizontal.
The county has 83 active disposal and injection permits of 313 on file, with 55.7M barrels injected in the 12 months reported through September 2025.
2,674 drilling permits have been issued in Jefferson County since 1977.
2,674 permits on file since 1977 · last issued Oct 22, 2026
Email me new permitsAlso: every Jefferson County well in the statewide list, searchable → · a year of permits on the map →
- 311
- active wells · 3,360 on file
- 41
- operators of the active wells
- 1,800
- plugged wells
Wells by status
3,360 WELLBORES ON FILE
From the RRC wellbore file and the permit record. Other sites count the RRC's map locations, which include dry holes and locations this file does not hold, so their totals differ.
Wells spudded, by year
HorizontalVertical and directional
Drilling permits
- 4
- permits issued, 90d
- -33%
- vs prior 90d (6)
- 1
- operators filing
- 0%
- horizontal
- 458
- avg permitted depth, ft
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 11, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 24 · prior 12 11(+118%)
Operators by permits, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
Full operator directory: 450 operators have filed a permit here since 1977 →
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 →
In Jefferson County the Caprock is reported in 66 wells, median top 1,068 ft, highlighted below. Back to the formation →
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 83
- active UIC permits of 313
- 1.2M
- permitted bbl/day, active
- 55.7M
- bbl injected, last 12 reported months
- Sep 2025
- reported through
Every active well, operator, and daily reporter in Jefferson County →
Permitted volume is a ceiling, not throughput. How to read it →
USGS catalog, Texas
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 |
| 916286Amendment | 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?
25 permits were issued in Jefferson County in the last 12 months, up 127% from 11 in the 12 months before. 0% were for horizontal wells. The most recent was issued Oct 22, 2026. 2,674 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 11 of 25, 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, including 311 active, 1,800 plugged, and 19 permitted and not yet drilled. 5 are horizontal. The active wells are under 41 operators.
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?
55.7 million barrels of water were injected in Jefferson County in the 12 months through September 2025, reported on form H-10. 83 of the county's 313 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?
No earthquakes of magnitude 2 or more were located in the area of Jefferson County's permitted wells in the last 2 years.
Earthquakes in Jefferson County →About this data
Wells from the RRC wellbore file and the permit record. 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=90, documented in the API reference.