COUNTIES · BARNETT SHALE AND NORTH TEXAS · DISTRICT 09 · CODE 181
Grayson County, Texas
Grayson County permitting is running 1.7 permits a month over the trailing 90 days (5 total, versus 9 in the prior quarter).
Atoka Energy LLC leads with 9 permits in the past 12 months, one of 7 operators active in the county.
3 operators filed a first Grayson County permit in the past year.
Median permitted depth over the past year is 9,100 ft (prior year: 7,000 ft); 11% of the past year's permits are horizontal.
The county has 112 active disposal and injection permits, with 8.49M barrels injected in the 12 months reported through June 2025.
TexNet located 3 earthquakes of magnitude 2 or more in the county's permit footprint over the past two years, the largest M2.4.
1,784 drilling permits have been issued in Grayson County since 1977.
1,784 permits on file since 1977 · last issued Oct 14, 2026
Watch Grayson CountyAlso: every Grayson County well in the statewide list, searchable → · a year of permits on the map →
- 5
- permits issued, 90d
- -44%
- vs prior 90d (9)
- 3
- operators filing
- 0%
- horizontal
- 5,480
- avg permitted depth, ft
- 277
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 6, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 18 · prior 12 12(+50%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
New entrants, last 12 months
Operators whose first permit in Grayson County came in the last year. 3 in total.
- Kodiak Oil & Gas, Inc.2 permitsSep 25, 2026 · active elsewhere first
- Appaloosa Oil & Gas LLC2 permitsJun 17, 2026 · new to Texas permits
- Aguila Operating Company LLC1 permitOct 8, 2026 · new to Texas permits
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Grayson County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
In Grayson County the Viola is reported in 120 wells, median top 8,353 ft, highlighted below. Back to the formation →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Strawn | 161 | 5 | 3,410 | 1,901–5,000 |
| Viola | 120 | 1 | 8,353 | 7,599–11,758 |
| Atoka | 75 | 0 | 7,775 | 7,302–8,984 |
| Pennsylvanian | 42 | 1 | 7,036 | 4,681–10,411 |
| Ellenburger | 37 | 1 | 7,465 | 4,260–10,676 |
| Base Cretaceous (marker) | 21 | 0 | 1,807 | 1,600–2,160 |
| Woodford | 15 | 0 | 10,740 | 7,423–13,000 |
| Simpson | 13 | 0 | 8,688 | 8,154–11,540 |
| Goodland | 12 | 0 | 644 | 616–1,373 |
| Paluxy | 12 | 0 | 857 | 809–993 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 112
- active UIC permits of 457
- 157K
- permitted bbl/day, active
- 8.49M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Grayson County →
Permitted volume is a ceiling, not throughput. How to read it →
TexNet catalog via USGS
Seismicity, last 2 years
- 3
- M2+ events in the area
- M2.4
- 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 |
|---|---|---|---|---|---|---|
| 919221 | Oct 16, 2026 | Oct 14, 2026 | Kodiak Oil & Gas, Inc. | Lime Rock #4 | 4,999 | 18131661 |
| 919183 | Oct 11, 2026 | Oct 9, 2026 | Felderhoff Production Company | Varley #8 | 5,300 | 18131660 |
| 919118 | Oct 10, 2026 | Oct 8, 2026 | Aguila Operating Company LLC | Reddick #1 | 8,200 | 18131659 |
| 918890 | Sep 30, 2026 | Sep 28, 2026 | Felderhoff Production Company | Elliott, Laura #3 | 3,900 | 18131622 |
| 918874 | Sep 27, 2026 | Sep 25, 2026 | Kodiak Oil & Gas, Inc. | Arnold #1 | 4,999 | 18131658 |
| 917370 | Aug 9, 2026 | Aug 7, 2026 | Atoka Energy LLC | Brooks-Jewell #1 | 10,000 | 18131656 |
| 917369 | Sep 10, 2026 | Jul 28, 2026 | Atoka Energy LLC | Hazlip #3 | 10,000 | 18131655 |
| 917369 | Jul 28, 2026 | Jul 28, 2026 | Atoka Energy LLC | Hazlip #3 | 10,000 | 18131655 |
| 917371 | Jul 28, 2026 | Jul 28, 2026 | Atoka Energy LLC | Brooks-Short #1 | 10,000 | 18131657 |
| 917105 | Jul 15, 2026 | Jul 15, 2026 | BLS Production Co., Inc. | Maggie Hunt #3 | 3,311 | 18130619 |
Questions about Grayson County
How many drilling permits were issued in Grayson County in the last 12 months?
19 permits were issued in Grayson County in the last 12 months, up 73% from 11 in the 12 months before. 11% were for horizontal wells. The most recent was issued Oct 14, 2026. 1,784 are on file since 1977.
Every Grayson County permit →Who is the most active operator in Grayson County?
By drilling permits filed in the last 12 months, Atoka Energy LLC is the most active operator in Grayson County, with 9 of 19, followed by BLS Production Co., Inc. (2) and Felderhoff Production Company (2). 3 operators filed permits here in the last 90 days.
Operators in Grayson County →How many oil and gas wells are in Grayson County?
2,480 wells are on file in Grayson County: 723 active, 1,226 plugged, and 13 permitted and not yet drilled. 56 are horizontal, and 48 operators hold them.
Every well in Grayson County →How much oil and gas does Grayson County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Grayson County is listed with its reported production on the county's Leases tab.
Leases in Grayson County →How much water is injected in Grayson County?
8.5 million barrels of water were injected in Grayson County in the 12 months through June 2025, reported on form H-10. 112 of the county's 457 disposal and injection permits are active.
Disposal and injection in Grayson County →What formations are drilled in Grayson County?
Completion filings for wells in Grayson County report tops for 10 formations in at least ten wells each. The most reported are the Strawn (161 wells, median top 3,410 ft), the Viola (120 wells, median top 8,353 ft), and the Atoka (75 wells, median top 7,775 ft).
Formations in Grayson County →What basin is Grayson County in?
Petrora lists Grayson County in the Barnett Shale and North Texas. It is in the Railroad Commission's District 09.
The Barnett Shale and North Texas →Have there been earthquakes in Grayson County?
TexNet located 3 earthquakes of magnitude 2 or more in the area of Grayson County's permitted wells in the last 2 years; the largest was M2.4.
Earthquakes in Grayson 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/grayson?days=90, documented in the API reference.