COUNTIES · PERMIAN BASIN · DISTRICT 8A · CODE 269
King County
King County permitting is running 1.7 permits a month over the trailing 90 days (5 total, versus 4 in the prior quarter).
Halliburton Operating Company leads with 6 permits in the past 12 months, one of 5 operators active in the county.
2 operators filed a first King County permit in the past year.
Median permitted depth over the past year is 4,500 ft (prior year: 9,000 ft); 0% of the past year's permits are horizontal.
The county has 154 active disposal and injection permits, with 15.8M barrels injected in the 12 months reported through June 2025.
2,895 drilling permits have been issued in King County since 1977.
2,895 permits on file since 1977 · last issued Sep 27, 2026
Watch King CountyAlso: every King County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 30d
- -100%
- vs prior 30d (4)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 228
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 63 MONTHS · BY ISSUE DATE
Last 12 months 27 · prior 12 30(-10%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Halliburton Operating Company | 6 | 0 |
| High River Res Operating, LLC | 3 | 269 |
| Medders Oil Company, Inc. | 3 | 130 |
| NBX Energy, LLC | 2 | 0 |
| Geosurveys, Inc. | 1 | 0 |
New entrants, last 12 months
Operators whose first permit in King County came in the last year. 2 in total.
- NBX Energy, LLC2 permitsApr 29, 2026 · active elsewhere first
- Geosurveys, Inc.1 permitJun 22, 2026 · active elsewhere first
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in King County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Tannehill | 457 | 9 | 3,130 | 2,693–3,792 |
| Strawn | 401 | 4 | 5,226 | 5,047–5,437 |
| Coleman Junction | 371 | 11 | 2,482 | 2,151–3,160 |
| Cisco | 333 | 8 | 3,581 | 3,407–3,869 |
| Canyon | 163 | 6 | 4,380 | 3,841–5,090 |
| Mississippian | 148 | 0 | 5,885 | 5,749–6,030 |
| Saddle Creek | 121 | 0 | 2,980 | 2,832–3,878 |
| Caddo | 86 | 0 | 5,675 | 5,608–5,874 |
| Pennsylvanian | 54 | 1 | 5,286 | 5,199–5,403 |
| Bend | 32 | 0 | 5,824 | 5,691–5,992 |
| Atoka | 14 | 0 | 6,026 | 5,879–6,137 |
| Des Moines | 13 | 1 | 5,232 | 4,858–5,402 |
| Palo Pinto | 11 | 0 | 3,009 | 1,513–3,086 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 154
- active UIC permits of 537
- 479K
- permitted bbl/day, active
- 15.8M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in King 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 |
|---|---|---|---|---|---|---|
| 919710 | Oct 30, 2026 | Oct 28, 2026 | Medders Oil Company, Inc. | Pitchfork Tttt #4 | 4,500 | 26933076 |
| 917891 | Sep 30, 2026 | Sep 27, 2026 | Halliburton Operating Company | Pearls 'A' #2 | 4,000 | 26933073 |
| 917996 | Sep 18, 2026 | Sep 16, 2026 | High River Res Operating, LLC | Burnett Ranch CO2 Flood 'PA1' #1BI | 6,100 | 26933015 |
| 917999 | Sep 11, 2026 | Sep 9, 2026 | High River Res Operating, LLC | Burnett Ranch CO2 Flood 'PA1' #1WI | 6,100 | 26933017 |
| 918181 | Sep 3, 2026 | Sep 1, 2026 | Halliburton Operating Company | Legacy South #1 | 4,200 | 26933074 |
| 917997 | Aug 27, 2026 | Aug 24, 2026 | High River Res Operating, LLC | Burnett Ranch CO2 Flood 'PA1' #1MI | 6,100 | 26933016 |
| 916338 | Jun 22, 2026 | Jun 22, 2026 | Geosurveys, Inc. | Boc 'A' #1 | 6,200 | 26933072 |
| 916295 | Jun 10, 2026 | Jun 10, 2026 | Halliburton Operating Company | Croton Creek #1 | 4,000 | 26933071 |
| 915735 | Jun 8, 2026 | Jun 8, 2026 | Halliburton Operating Company | Pearls #2 | 4,000 | 26933070 |
| 915195 | May 6, 2026 | May 6, 2026 | NBX Energy, LLC | Four Sixes QF #1 | 5,500 | 26933069 |
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/king?days=30, documented in the API reference.