CALLAHAN County

District 8 · Eagle Ford / Maverick · Permits since 1977-06-06 · Data through 2026-06-17

Callahan County permitting is running 0.7 permits a month over the trailing 90 days (2 total, versus 1 in the prior quarter). CLAUSEN, A. G. leads with 2 permits in the past 12 months, one of 4 operators active in the county. 2 operators filed a first Callahan County permit in the past year. Median permitted depth over the past year is 500 ft (prior year: 550 ft); 0% of the past year's permits are horizontal.

Window
Custom to

Permits (1yr)

6

vs Prior

-33%

Operators (1yr)

4

Avg Depth (1yr)

600

Hz % (1yr)

0%

All Time

6,186

Depth Range: 150 - 10,001 ft
SWD wells in CALLAHAN County → 116 active injection & disposal wells · full UIC inventory

Permit Activity

Permit Types (1yr)

DRILL

6

-3 vs prior

Top Operators

by permits, trailing 12 mo View All
OPERATORPERMITS 12MOWELLS
257
20
10
10

Recent Permits

View All
PERMITLEASETYPEISSUED
EA-46 REPLACEMENT TINERDRILL2026-06-17
EA-33 REPLACMENT TINERDRILL2026-06-17
ETC MP154.3DRILL2026-03-17
RHONDA LOOKDRILL2025-12-23
STACY, F.W.DRILL2025-12-05
STACY, F.W.DRILL2025-08-15
7045 CALLAHAN COMANCHE 20 MP 107DRILL2025-07-21
7045 CALLAHAN COMANCHE 20 MP 107DRILL2025-07-21
WA-19DRILL2025-06-23
CH65DRILL2025-06-19

New to CALLAHAN County

first county permit, past 12 mo
OPERATORFIRST PERMITPERMITSBACKGROUND
2026-06-172first TX permits
2025-12-231first TX permits

Formations Beneath CALLAHAN County

from RRC completion filings
FORMATIONWELLSMEDIAN TOP (FT)
Caddo4193,350
Ellenburger2724,173
Tannehill190830
Palo Pinto1842,510
Duffer1373,852
Barnett843,976
Saddle Creek831,139
Coleman Junction65863