COUNTIES · BARNETT SHALE AND NORTH TEXAS · DISTRICT 7B · CODE 059
Callahan County, Texas
Callahan County permitting is running 1.7 permits a month over the trailing 90 days (5 total, versus 3 in the prior quarter).
Energy Transfer Company leads with 4 permits in the past 12 months, one of 7 operators active in the county.
4 operators filed a first Callahan County permit in the past year.
Median permitted depth over the past year is 400 ft (prior year: 550 ft); 0% of the past year's permits are horizontal.
The county has 116 active disposal and injection permits, with 1.68M barrels injected in the 12 months reported through June 2025.
6,192 drilling permits have been issued in Callahan County since 1977.
6,192 permits on file since 1977 · last issued Oct 26, 2026
Watch Callahan CountyAlso: every Callahan County well in the statewide list, searchable → · a year of permits on the map →
- 2
- permits issued, 30d
- +100%
- vs prior 30d (1)
- 1
- operators filing
- 0%
- horizontal
- 400
- avg permitted depth, ft
- 1,060
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 7, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 11 · prior 12 9(+22%)
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 Callahan County came in the last year. 4 in total.
- Oneok West TX NGL PL, L.L.C.2 permitsJun 17, 2026 · new to Texas permits
- Big Mountain Operating LLC1 permitSep 4, 2026 · active elsewhere first
- Cotula Oil & Gas Co., Inc.1 permitSep 2, 2026 · new to Texas permits
- Good News Resources, LLC1 permitDec 23, 2025 · new to Texas permits
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Callahan 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 |
|---|---|---|---|---|
| Caddo | 419 | 0 | 3,350 | 2,970–4,025 |
| Ellenburger | 272 | 0 | 4,182 | 3,990–4,525 |
| Tannehill | 190 | 0 | 823 | 300–1,543 |
| Palo Pinto | 184 | 0 | 2,504 | 1,882–3,157 |
| Duffer | 137 | 0 | 3,852 | 3,703–3,954 |
| Barnett | 84 | 0 | 3,972 | 3,860–4,331 |
| Saddle Creek | 83 | 0 | 1,139 | 416–1,710 |
| Coleman Junction | 65 | 1 | 800 | 280–1,092 |
| Marble Falls | 63 | 0 | 3,735 | 3,294–4,147 |
| Mississippian | 31 | 0 | 4,079 | 3,910–4,484 |
| Cisco | 28 | 0 | 850 | 448–1,819 |
| Strawn | 27 | 0 | 2,900 | 2,262–3,856 |
| Gunsight | 25 | 0 | 900 | 524–1,946 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 116
- active UIC permits of 1,244
- 41.6K
- permitted bbl/day, active
- 1.68M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Callahan County →
Permitted volume is a ceiling, not throughput. How to read it →
USGS catalog, Texas
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 |
|---|---|---|---|---|---|---|
| 919578 | Oct 28, 2026 | Oct 26, 2026 | Energy Transfer Company | Hbpl-259.25 #01 | 400 | 05937215 |
| 919571 | Oct 28, 2026 | Oct 26, 2026 | Energy Transfer Company | Hbpl-240.79 - E CR 269 #01 | 400 | 05937214 |
| 918516 | Sep 16, 2026 | Sep 14, 2026 | Energy Transfer Company | Abilene 3.0 GB - S CR 259 #01 | 420 | 05937213 |
| 918276 | Sep 6, 2026 | Sep 4, 2026 | Big Mountain Operating LLC | Cunningham #1 | 2,200 | 05937212 |
| 916727 | Sep 4, 2026 | Sep 2, 2026 | Cotula Oil & Gas Co., Inc. | Stacy, F.W. #11 | 1,000 | 05937211 |
| 917386 | Jul 29, 2026 | Jul 29, 2026 | Wilson Well Service Inc. | Henderson, E.E. 'B' #3 | 400 | 05937114 |
| 914970 | Jun 17, 2026 | Jun 17, 2026 | Oneok West TX NGL PL, L.L.C. | EA-46 Replacement Tiner #1 | 300 | 05937210 |
| 914945 | Jun 17, 2026 | Jun 17, 2026 | Oneok West TX NGL PL, L.L.C. | EA-33 Replacment Tiner #1 | 300 | 05937209 |
| 913976 | Mar 17, 2026 | Mar 17, 2026 | Energy Transfer Company | Etc MP154.3 #1 | 600 | 05937208 |
| 912211 | Dec 23, 2025 | Dec 23, 2025 | Good News Resources, LLC | Rhonda Look #1 | 400 | 05937207 |
Questions about Callahan County
How many drilling permits were issued in Callahan County in the last 12 months?
11 permits were issued in Callahan County in the last 12 months, up 22% from 9 in the 12 months before. 0% were for horizontal wells. The most recent was issued Oct 26, 2026. 6,192 are on file since 1977.
Every Callahan County permit →Who is the most active operator in Callahan County?
By drilling permits filed in the last 12 months, Energy Transfer Company is the most active operator in Callahan County, with 4 of 11, followed by Oneok West TX NGL PL, L.L.C. (2) and Wilson Well Service Inc. (1). 3 operators filed permits here in the last 90 days.
Operators in Callahan County →How many oil and gas wells are in Callahan County?
8,733 wells are on file in Callahan County, including 529 active, 6,524 plugged, and 11 permitted and not yet drilled. 1 is horizontal. The active wells are under 62 operators.
Every well in Callahan County →How much oil and gas does Callahan County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Callahan County is listed with its reported production on the county's Leases tab.
Leases in Callahan County →How much water is injected in Callahan County?
1.7 million barrels of water were injected in Callahan County in the 12 months through June 2025, reported on form H-10. 116 of the county's 1,244 disposal and injection permits are active.
Disposal and injection in Callahan County →What formations are drilled in Callahan County?
Completion filings for wells in Callahan County report tops for 13 formations in at least ten wells each. The most reported are the Caddo (419 wells, median top 3,350 ft), the Ellenburger (272 wells, median top 4,182 ft), and the Tannehill (190 wells, median top 823 ft).
Formations in Callahan County →What basin is Callahan County in?
Petrora lists Callahan County in the Barnett Shale and North Texas. It is in the Railroad Commission's District 7B.
The Barnett Shale and North Texas →Have there been earthquakes in Callahan County?
No earthquakes of magnitude 2 or more were located in the area of Callahan County's permitted wells in the last 2 years.
Earthquakes in Callahan 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/callahan?days=30, documented in the API reference.