COUNTIES · PERMIAN BASIN · DISTRICT 08 · CODE 173
Glasscock County, Texas
Glasscock County permitting is running 17 permits a month over the trailing 90 days (50 total, up 14% on the prior quarter). 11 were issued in the past week.
Pioneer Natural Res. USA, Inc. leads with 73 permits in the past 12 months, one of 19 operators active in the county.
7 operators filed a first Glasscock County permit in the past year.
Median permitted depth over the past year is 10,605 ft (prior year: 10,282 ft); 96% of the past year's permits are horizontal.
The county has 259 active disposal and injection permits, with 218M barrels injected in the 12 months reported through June 2025.
126 earthquakes of magnitude 2 or more were located in the county's permit footprint over the past two years, the largest M3.6.
9,437 drilling permits have been issued in Glasscock County since 1977.
9,437 permits on file since 1977 · last issued Nov 6, 2026
Email me new permitsAlso: every Glasscock County well in the statewide list, searchable → · a year of permits on the map →
- 50
- permits issued, 90d
- +14%
- vs prior 90d (44)
- 7
- operators filing
- 96%
- horizontal
- 10,754
- avg permitted depth, ft
- 511
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 9, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 266 · prior 12 181(+47%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Pioneer Natural Res. USA, Inc. | 73 | 1,543 |
| Diamondback E&P LLC | 62 | 734 |
| Oxyrock Operating, LLC | 36 | 349 |
| Civitas Permian Operating, LLC | 26 | 328 |
| De V Operating, LLC | 18 | 7 |
| OXY USA Inc. | 17 | 216 |
| De Central Operating, LLC | 12 | 13 |
| Black Swan Opco, LLC | 6 | 40 |
| Hannathon Petroleum II, LLC | 4 | 400 |
| Aqua Terra Permian, LLC | 4 | 10 |
New entrants, last 12 months
Operators whose first permit in Glasscock County came in the last year. 7 in total.
- De V Operating, LLC18 permitsDec 19, 2025 · new to Texas permits
- Arete Creek Operating, LLC4 permitsFeb 11, 2026 · new to Texas permits
- Continental Resources, Inc.3 permitsApr 23, 2026 · active elsewhere first
- Deep Blue Operating I LLC2 permitsDec 17, 2025 · active elsewhere first
- R H Well Service, Inc.1 permitOct 6, 2026 · new to Texas permits
- Crescent Energy Operating, LLC1 permitApr 30, 2026 · active elsewhere first
- Tejas Permian Operating, LLC1 permitFeb 6, 2026 · active elsewhere first
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Glasscock 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 Glasscock County report the Devonian, so it is below this table's cutoff. Back to the formation →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Spraberry | 4,533 | 259 | 6,590 | 5,637–6,956 |
| San Andres | 3,207 | 261 | 3,494 | 2,184–4,000 |
| Clear Fork | 3,121 | 256 | 5,454 | 3,681–6,123 |
| Yates | 2,823 | 258 | 2,040 | 1,320–2,242 |
| Wolfcamp | 2,478 | 12 | 7,704 | 6,579–8,396 |
| Grayburg | 2,443 | 252 | 3,343 | 2,354–3,799 |
| Queen | 2,227 | 205 | 2,709 | 1,500–3,188 |
| Seven Rivers | 2,181 | 213 | 2,133 | 1,300–2,519 |
| Strawn | 2,055 | 3 | 9,728 | 9,217–10,088 |
| Glorieta | 1,863 | 169 | 4,330 | 2,450–4,880 |
| Santa Rosa | 1,854 | 186 | 840 | 540–1,000 |
| Dean | 1,767 | 5 | 7,960 | 6,919–8,254 |
| Wichita-Albany | 900 | 2 | 7,058 | 4,812–7,550 |
| Rustler | 842 | 188 | 1,366 | 1,125–1,476 |
| Fusselman | 682 | 3 | 10,450 | 9,942–10,824 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 259
- active UIC permits of 621
- 2.95M
- permitted bbl/day, active
- 218M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Glasscock County →
Permitted volume is a ceiling, not throughput. How to read it →
USGS catalog, Texas
Seismicity, last 2 years
- 126
- M2+ events in the area
- M3.6
- 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 |
|---|---|---|---|---|---|---|
| 919860 | Nov 9, 2026 | Nov 6, 2026 | Hannathon Petroleum II, LLC | San Saba 48-36 04 #4HH | 10,000 | 17339647 |
| 919859 | Nov 9, 2026 | Nov 6, 2026 | Hannathon Petroleum II, LLC | San Saba 48-36 03 #3HH | 10,000 | 17339646 |
| 919858 | Nov 9, 2026 | Nov 6, 2026 | Hannathon Petroleum II, LLC | San Saba 48-36 02 #2HH | 10,000 | 17339645 |
| 919857 | Nov 9, 2026 | Nov 6, 2026 | Hannathon Petroleum II, LLC | San Saba 48-36 01 #1HH | 10,000 | 17339644 |
| 919622 | Nov 6, 2026 | Nov 4, 2026 | Diamondback E&P LLC | Woody 4-9 Unit #U 4JMH | 13,000 | 17339631 |
| 919621 | Nov 6, 2026 | Nov 4, 2026 | Diamondback E&P LLC | Woody 4-9 Unit #U 3WBH | 13,000 | 17339630 |
| 919620 | Nov 6, 2026 | Nov 4, 2026 | Diamondback E&P LLC | Woody 4-9 Unit #U 3WAH | 13,000 | 17339629 |
| 919608 | Nov 6, 2026 | Nov 4, 2026 | Diamondback E&P LLC | Woody 4-9 Unit #1JMH | 13,000 | 17339632 |
| 919162 | Nov 6, 2026 | Nov 4, 2026 | Black Swan Opco, LLC | Felicia #3HH | 10,600 | 17339603 |
| 919159 | Nov 6, 2026 | Nov 4, 2026 | Black Swan Opco, LLC | Deebo #2HH | 10,600 | 17339602 |
Questions about Glasscock County
How many drilling permits were issued in Glasscock County in the last 12 months?
276 permits were issued in Glasscock County in the last 12 months, up 60% from 172 in the 12 months before. 96% were for horizontal wells. The most recent was issued Nov 6, 2026. 9,437 are on file since 1977.
Every Glasscock County permit →Who is the most active operator in Glasscock County?
By drilling permits filed in the last 12 months, Pioneer Natural Res. USA, Inc. is the most active operator in Glasscock County, with 73 of 276, followed by Diamondback E&P LLC (62) and Oxyrock Operating, LLC (36). 7 operators filed permits here in the last 90 days.
Operators in Glasscock County →How many oil and gas wells are in Glasscock County?
10,059 wells are on file in Glasscock County, including 3,899 active, 2,905 plugged, and 101 permitted and not yet drilled. 2,418 are horizontal. The active wells are under 76 operators.
Every well in Glasscock County →How much oil and gas does Glasscock County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Glasscock County is listed with its reported production on the county's Leases tab.
Leases in Glasscock County →How much water is injected in Glasscock County?
218 million barrels of water were injected in Glasscock County in the 12 months through June 2025, reported on form H-10. 259 of the county's 621 disposal and injection permits are active.
Disposal and injection in Glasscock County →What formations are drilled in Glasscock County?
Completion filings for wells in Glasscock County report tops for 15 formations in at least ten wells each. The most reported are the Spraberry (4,533 wells, median top 6,590 ft), the San Andres (3,207 wells, median top 3,494 ft), and the Clear Fork (3,121 wells, median top 5,454 ft).
Formations in Glasscock County →What basin is Glasscock County in?
Petrora lists Glasscock County in the Permian Basin. It is in the Railroad Commission's District 08.
The Permian Basin →Have there been earthquakes in Glasscock County?
126 earthquakes of magnitude 2 or more were located in the area of Glasscock County's permitted wells in the last 2 years; the largest was M3.6.
Earthquakes in Glasscock County →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/glasscock?days=90, documented in the API reference.