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COUNTIES · EAGLE FORD SHALE · DISTRICT 01 · CODE 029

Bexar County

Bexar County has had no new drilling permits in the past 90 days; the most recent permit on record was issued June 5, 2026.

JM Calk Operating, LLC leads with 7 permits in the past 12 months, one of 2 operators active in the county.

One operator filed a first Bexar County permit in the past year.

Median permitted depth over the past year is 1,500 ft (prior year: 410 ft); 0% of the past year's permits are horizontal.

The county has 9 active disposal and injection permits, with 9.54K barrels injected in the 12 months reported through June 2025.

TexNet located 1 earthquakes of magnitude 2 or more in the county's permit footprint over the past two years, the largest M2.1.

7,897 drilling permits have been issued in Bexar County since 1977.

7,897 permits on file since 1977 · last issued Jun 5, 2026

Watch Bexar County

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

Window30 days90 days180 days365 days
0
permits issued, 90d
-100%
vs prior 90d (1)
0
operators filing
—
horizontal
—
avg permitted depth, ft
437
operators, all time

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

Permits issued by month

LAST 19 MONTHS · BY ISSUE DATE

Last 12 months 37

0510152017201820192022202320252026

Top operators, last 12 months

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

OperatorPermitsWells
JM Calk Operating, LLC724
Enterprise Products Operatingllc10

Full operator directory →

New entrants, last 12 months

Operators whose first permit in Bexar County came in the last year. 1 in total.

Permit types, 90d

TypeWindowPriorAll time
Drill017,758

What the types mean →

Formations in completed wells

RRC WELLBORE FILE · ≥10 WELLS

Tops reported on completion filings for wells in Bexar County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →

In Bexar County the Escondido is reported in 926 wells, median top 530 ft, highlighted below. Back to the formation →

FormationWellsPermitted last 3 yrsMedian top, ftP10–P90
Olmos1,30101,288834–1,501
Escondido9260530240–956
Anacacho57301,2001,038–1,449
Wilcox3550500200–550
Navarro2090210209–550
Austin Chalk3001,3981,050–2,902
Midway260210140–778
Buda1301,2971,180–1,844

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Disposal and injection

9
active UIC permits of 351
4.03K
permitted bbl/day, active
9.54K
bbl injected, last 12 reported months
Jun 2025
reported through

Every active well, operator, and daily reporter in Bexar County →

Permitted volume is a ceiling, not throughput. How to read it →

TexNet catalog via USGS

Seismicity, last 2 years

1
M2+ events in the area
M2.1
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
915977Jun 5, 2026Jun 5, 2026Enterprise Products OperatingllcCPS LID24-SA-110 #140002938406
913507Feb 19, 2026Feb 19, 2026JM Calk Operating, LLCErd Unit #151,50002938405
913506Feb 19, 2026Feb 19, 2026JM Calk Operating, LLCErd Unit #141,50002938404
913484Feb 18, 2026Feb 18, 2026JM Calk Operating, LLCErd Unit #131,50002938403
913198Feb 13, 2026Feb 13, 2026JM Calk Operating, LLCErd Unit #121,50002938402
912107Dec 15, 2025Dec 15, 2025JM Calk Operating, LLCErd Unit #81,50002938401
912106Dec 15, 2025Dec 15, 2025JM Calk Operating, LLCErd Unit #71,50002938400
912105Dec 15, 2025Dec 15, 2025JM Calk Operating, LLCErd Unit #61,50002938335
907616Apr 25, 2025Apr 25, 2025Alamo Environmental, Inc.Cassin #D 1941002936584
890265Jun 6, 2023Jun 6, 2023Nustar Logistics, L.P.NUSTAR1 #C 0144002938399

All Bexar 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/bexar?days=90, documented in the API reference.