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COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 245

Jefferson County

Jefferson County permitting is running 1.3 permits a month over the trailing 90 days (4 total, versus 8 in the prior quarter). 3 were issued in the past week.

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 County

Also: every Jefferson County well in the statewide list, searchable → · a year of permits on the map →

Window30 days90 days180 days365 days
4
permits issued, 90d
-50%
vs prior 90d (8)
1
operators filing
0%
horizontal
458
avg permitted depth, ft
454
operators, all time

WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026 · WHY ISSUE AND SEEN DATES DIFFER

Permits issued by month

LAST 67 MONTHS · BY ISSUE DATE

Last 12 months 38 · prior 12 19(+100%)

0510152017201820192020202120222023202420252026

Top operators, last 12 months

By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.

OperatorPermitsWells
Exxonmobil Low C Sol on Stor LLC125
Kinder Morgan Texas Pipeline LLC40
Golden Triangle Storage, LLC310
Rheaco Oil Company, Ltd.2172
Kingwood Exploration LLC2167
Gepard Energy Inc165
Magnetar Operating LLC10
Rusk Energy Operating LLC10

Full operator directory →

New entrants, last 12 months

Operators whose first permit in Jefferson County came in the last year. 4 in total.

Permit types, 90d

TypeWindowPriorAll time
Drill452,006
Recompletion03844

What the types mean →

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 →

FormationWellsPermitted last 3 yrsMedian top, ftP10–P90
Frio30587,5385,665–9,272
Miocene (undifferentiated)260113,347796–7,482
Yegua77011,80010,240–13,036
Vicksburg7008,2927,673–8,958
Caprock6621,068312–1,592
Anahuac6415,6945,322–7,640
Jackson2809,6058,268–10,496

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

PermitSeenIssuedOperatorLease / wellDepthAPI
918943Oct 24, 2026Oct 22, 2026Kinder Morgan Texas Pipeline LLCTip-219 #145024532943
918942Oct 24, 2026Oct 22, 2026Kinder Morgan Texas Pipeline LLCTip-206 #148024532942
918944Oct 24, 2026Oct 22, 2026Kinder Morgan Texas Pipeline LLCKmlp-03 #145024532944
918939Oct 16, 2026Oct 14, 2026Kinder Morgan Texas Pipeline LLCTip-202 #145024532941
917179Jul 29, 2026Jul 29, 2026Gepard Energy IncMcFaddin Trust #91ST6,50024531934
917427Jul 27, 2026Jul 27, 2026Golden Triangle Storage, LLCGolden Triangle Storage #118,50024532940
917282Jul 20, 2026Jul 20, 2026Kingwood Exploration LLCMcFaddin Ranch #15ST7,77324532841
917269Jul 20, 2026Jul 20, 2026Kingwood Exploration LLCMcFaddin Ranch #13ST7,73524532060
916905Jul 7, 2026Jul 7, 2026Golden Triangle Storage, LLCGolden Triangle Storage #108,50024532939
916286Sep 10, 2026Jun 10, 2026Exxonmobil Low C Sol on Stor LLCSunflower 2 Azm #24,00024532938

All Jefferson County permits →

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=90, documented in the API reference.