COUNTIES · PERMIAN BASIN · DISTRICT 7C · CODE 307
McCulloch County
Mcculloch County has had no new drilling permits in the past 90 days; the most recent permit on record was issued May 19, 2026.
Enterprise Products Operatingllc leads with 1 permit in the past 12 months, the only operator active in the county.
Median permitted depth over the past year is 400 ft; 0% of the past year's permits are horizontal.
The county has 19 active disposal and injection permits, with 625K barrels injected in the 12 months reported through June 2025.
912 drilling permits have been issued in Mcculloch County since 1977.
912 permits on file since 1977 · last issued May 19, 2026
Watch McCulloch CountyAlso: every McCulloch County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 90d
- -100%
- vs prior 90d (1)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 211
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 14 MONTHS · BY ISSUE DATE
Last 12 months 24
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Enterprise Products Operatingllc | 1 | 0 |
New entrants, last 12 months
Operators whose first permit in McCulloch County came in the last year. None.
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in McCulloch County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
Fewer than ten wells in McCulloch County report the Gunsight, so it is below this table's cutoff. Back to the formation →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Strawn | 128 | 0 | 1,194 | 773–1,421 |
| Canyon | 67 | 0 | 1,111 | 641–1,566 |
| Palo Pinto | 64 | 0 | 1,086 | 573–1,200 |
| Caddo | 31 | 0 | 1,050 | 735–1,540 |
| Marble Falls | 24 | 0 | 1,136 | 804–1,328 |
| Ellenburger | 10 | 0 | 1,282 | 797–2,100 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 19
- active UIC permits of 59
- 10.9K
- permitted bbl/day, active
- 625K
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in McCulloch 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
| Permit | Seen | Issued | Operator | Lease / well | Depth | API |
|---|---|---|---|---|---|---|
| 915653 | May 19, 2026 | May 19, 2026 | Enterprise Products Operatingllc | SE-230 #1 | 400 | 30731218 |
| 879642 | May 24, 2022 | May 24, 2022 | Flint Rock Resources Mgmnt, Inc. | Appleton #21B | 1,200 | 30731217 |
| 879640 | May 24, 2022 | May 24, 2022 | Flint Rock Resources Mgmnt, Inc. | Appleton #20B | 1,200 | 30731216 |
| 876393 | Feb 1, 2022 | Feb 1, 2022 | Flint Rock Resources Mgmnt, Inc. | Appleton #19B | 1,200 | 30731214 |
| 866504 | Dec 18, 2020 | Dec 18, 2020 | Discovery Operating, Inc. | White Ranch A #3 | 1,500 | 30731207 |
| 866120 | Nov 18, 2020 | Nov 18, 2020 | Flint Rock Resources Mgmnt, Inc. | Appleton #18B | 1,200 | 30731213 |
| 866119 | Nov 18, 2020 | Nov 18, 2020 | Flint Rock Resources Mgmnt, Inc. | Appleton #17B | 1,200 | 30731212 |
| 866117 | Nov 18, 2020 | Nov 18, 2020 | Flint Rock Resources Mgmnt, Inc. | Appleton #16B | 1,200 | 30731211 |
| 866114 | Nov 18, 2020 | Nov 18, 2020 | Flint Rock Resources Mgmnt, Inc. | Appleton #15B | 1,200 | 30731210 |
| 863825 | Jun 10, 2020 | Jun 10, 2020 | Discovery Operating, Inc. | White Ranch 'A' #4 | 1,500 | 30731209 |
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/mcculloch?days=90, documented in the API reference.