COUNTIES · EAGLE FORD SHALE · DISTRICT 01 · CODE 325

Medina County

Medina County has had no new drilling permits in the past 90 days; the most recent permit on record was issued May 27, 2026.

Premier Minerals, Inc. leads with 4 permits in the past 12 months, the only operator active in the county.

Median permitted depth over the past year is 1,500 ft (prior year: 8,300 ft); 0% of the past year's permits are horizontal.

The county has 20 active disposal and injection permits, with 26.9K barrels injected in the 12 months reported through June 2025.

3,726 drilling permits have been issued in Medina County since 1977.

3,726 permits on file since 1977 · last issued May 27, 2026

Watch Medina County

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

4
permits issued, 365d
+300%
vs prior 365d (1)
1
operators filing
0%
horizontal
1,500
avg permitted depth, ft
332
operators, all time

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

Permits issued by month

LAST 53 MONTHS · BY ISSUE DATE

Last 12 months 69 · prior 12 70(-1%)

010202017201820192020202120222023202420252026

Top operators, last 12 months

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

OperatorPermitsWells
Premier Minerals, Inc.49

Full operator directory →

New entrants, last 12 months

Operators whose first permit in Medina County came in the last year. None.

Permit types, 365d

TypeWindowPriorAll time
Drill413,637

What the types mean →

Formations in completed wells

RRC WELLBORE FILE · ≥10 WELLS

Tops reported on completion filings for wells in Medina 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
Olmos80712902788–1,014
Escondido69512394241–620
Anacacho244121,281910–1,446
Navarro820452386–1,000
Austin Chalk5101,4551,358–1,690
Buda3001,3521,232–2,242
Wilcox21020025–225
Midway180300154–300
San Miguel1501,0721,061–1,076

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Disposal and injection

20
active UIC permits of 158
2.48K
permitted bbl/day, active
26.9K
bbl injected, last 12 reported months
Jun 2025
reported through

Every active well, operator, and daily reporter in Medina 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
915859May 27, 2026May 27, 2026Premier Minerals, Inc.Ralph & Sons Farms, Inc #181,50032534389
915858May 27, 2026May 27, 2026Premier Minerals, Inc.Ralph & Sons Farms, Inc #171,50032534388
915857May 27, 2026May 27, 2026Premier Minerals, Inc.Ralph & Sons Farms, Inc #161,50032534387
915591May 15, 2026May 15, 2026Premier Minerals, Inc.Ralph & Sons Farms, Inc #151,50032534386
909236Jul 15, 2025Jul 15, 20251859 Operating LLCPioneer #18,30032534385
902986Sep 30, 2024Sep 30, 2024Premier Minerals, Inc.Ralph & Sons Farms, Inc. #131,50032534384
902985Sep 30, 2024Sep 30, 2024Premier Minerals, Inc.Ralph & Sons Farms, Inc. #121,50032534383
902984Sep 30, 2024Sep 30, 2024Premier Minerals, Inc.Ralph & Sons Farms, Inc. #111,50032534382
902983Sep 30, 2024Sep 30, 2024Premier Minerals, Inc.Ralph & Sons Farms, Inc. #101,50032534381
902964Sep 30, 2024Sep 30, 2024Premier Minerals, Inc.Ralph & Sons Farms, Inc. #91,50032534380

All Medina 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/medina?days=365, documented in the API reference.