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JEFFERSON County

District 4 · Gulf Coast (Southwest) · Permits since 1977-06-07 · Data through 2026-07-29

All Permits Operators

Jefferson County permitting is running 1.7 permits a month over the trailing 90 days (5 total, versus 5 in the prior quarter). EXXONMOBIL LOW C SOL ON STOR LLC leads with 12 permits in the past 12 months, one of 7 operators active in the county. 3 operators filed a first Jefferson County permit in the past year. Median permitted depth over the past year is 7,794 ft (prior year: 8,000 ft); 0% of the past year's permits are horizontal.

Window
30d90d6mo1yrall
Custom to

Permits (6mo)

10

vs Prior

-17%

Operators (6mo)

5

Avg Depth (6mo)

5,801

Hz % (6mo)

0%

All Time

3,036

Depth Range: 150 - 23,000 ft
SWD wells in JEFFERSON County → 145 active injection & disposal wells · full UIC inventory

Permit Activity

Permit Types (6mo)

DRILL

7

+1 vs prior

RECOMP

3

NEW vs prior

Top Operators

by permits, trailing 12 mo View All
OPERATORPERMITS 12MOWELLS
EXXONMOBIL LOW C SOL ON STOR LLC125
GOLDEN TRIANGLE STORAGE, LLC310
RHEACO OIL COMPANY, LTD.2172
KINGWOOD EXPLORATION LLC2167
GEPARD ENERGY INC165
MAGNETAR OPERATING LLC10
RUSK ENERGY OPERATING LLC10

Recent Permits

View All
PERMITLEASETYPEISSUED
917179MCFADDIN TRUSTRECOMP2026-07-29
917427GOLDEN TRIANGLE STORAGEDRILL2026-07-27
917269MCFADDIN RANCHRECOMP2026-07-20
917282MCFADDIN RANCHRECOMP2026-07-20
916905GOLDEN TRIANGLE STORAGEDRILL2026-07-07
916286SUNFLOWER 2 AZMDRILL2026-06-10
916286SUNFLOWER 2 AZMDRILL2026-06-10
915524GLADYS CITYDRILL2026-05-12
914942GOLDEN TRIANGLE STORAGEDRILL2026-04-21
912492GLADYS CITYDRILL2026-03-26

New to JEFFERSON County

first county permit, past 12 mo
OPERATORFIRST PERMITPERMITSBACKGROUND
GEPARD ENERGY INC2026-07-291first TX permits
RUSK ENERGY OPERATING LLC2026-03-051active elsewhere in TX
MAGNETAR OPERATING LLC2025-11-131active elsewhere in TX

Formations Beneath JEFFERSON County

from RRC completion filings
FORMATIONWELLSMEDIAN TOP (FT)
Frio3057,636
Miocene (undifferentiated)2604,320
Yegua7712,244
Vicksburg708,300
Caprock661,042
Anahuac645,702
Jackson289,600