OPERATORS · TEXAS · P-5 NUMBER 101846
Mammoth Operating LLC
- P-5 status
- Active (A)
- P-5 last filed
- Dec 1, 2025
- Based in
- Spicewood, TX
- Most permits, 12 months
- Young County
Mammoth Operating LLC was issued 1 drilling permit in the past 12 months, after a quiet prior year, all in Young County. 0% were horizontal.
None were issued in the past 90 days.
The RRC wellbore file lists 69 wells under its operatorship (33 producing, 5 shut in).
Lease reports credit it with 3.41K barrels of oil and 0 mcf of gas in the 12 months reported through April 2026, up 16% on the year before.
It holds 10 active disposal or injection permits, injecting 27.8K barrels in the 12 months reported through June 2025.
2 drilling permits have been issued to this operator number since 2011; its P-5 organization report was last filed December 1, 2025.
- 1
- permits, last 12 months
- —
- vs prior 12 months (0)
- 1
- counties, 12 months
- 33
- producing wells, of 69 of record
- 5
- leases it reports
- 0%
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 5, 2026
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 1 · prior 12 0
Counties
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
All 2 permits, searchable → · Leases it reports → · On the map →
Formations in its completed wells
Tops reported on completion filings for wells it operates. RRC wellbore file. About tops →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| No completion tops on file. | ||
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. How production is reported →
- 3.41K
- bbl oil, last 12 reported months
- +16%
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 7.28K
- bbl oil since reporting began
Last 12 months 3,410 · prior 12 2,929(+16%)
Mammoth Operating LLC: Oil by month.
Beyond the permit record
RRC wellbore file
Wells of record
How it got them
Each count opens the wells it counts. Acquired means the well's permit names a different operator than the schedule does today; wells it permitted that others now run are in its permit history, marked with who runs them now. Transfers and operator numbers →
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 305
- permitted bbl/day, active
- 27.8K
- bbl injected, last 12 reported months
- Jun 2025
- reported through
All 10 permits, with volumes → · On the map →
Permitted volume is a ceiling, not throughput. How to read it →
Permit types
Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →
Fields
RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.
| Field | Wells | Producing |
|---|---|---|
| Young County Regular99480001 | 36 | 17 |
| Jack County Regular45274001 | 33 | 16 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Active (A)
- Last filed Dec 1, 2025
- Oil operator
- Address
- 21818 St Hwy 71 West #210
- Spicewood, TX 78669
- (214) 624-4819
- Officers and agents
- Kenny, Matt · Manager
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 917186 | Jul 17, 2026 | Jul 17, 2026 | Mammoth Operating LLC | Young | McClurg, M. L. #18 | 600 | 50342587 |
| 850598 | Mar 7, 2019 | Mar 7, 2019 | J-Lyn Oil Co. | Young | M.L. McClurg #7 | 750 | 50342426 |
| 849672 | Feb 8, 2019 | Feb 8, 2019 | J-Lyn Oil Co. | Young | M.L. McClurg #17 | 750 | 50342422 |
| 847109 | Nov 29, 2018 | Nov 29, 2018 | J-Lyn Oil Co. | Young | Edwards 127 #28 | 750 | 50342413 |
| 722690 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #17C | 450 | 23739465 |
| 722689 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #16C | 450 | 23739467 |
| 722620 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #7C | 450 | 23739457 |
| 722620 | Aug 29, 2011 | Aug 29, 2011 | Mammoth Operating LLC | Jack | Henderson #7C | 450 | 23739457 |
| 722615 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #4C | 450 | 23739454 |
| 722605 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #3C | 450 | 23739453 |
| 722591 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #2C | 450 | 23739452 |
| 722588 | Aug 29, 2011 | Aug 29, 2011 | Comstock Energy, LLC | Jack | Henderson #1C | 450 | 23739451 |
| 722688 | Aug 26, 2011 | Aug 26, 2011 | Comstock Energy, LLC | Jack | Henderson #15C | 450 | 23739466 |
| 722688 | Aug 26, 2011 | Aug 26, 2011 | Comstock Energy, LLC | Jack | Henderson #15C | 450 | 23739466 |
| 722687 | Aug 26, 2011 | Aug 26, 2011 | Comstock Energy, LLC | Jack | Henderson #14C | 450 | 23739464 |
About this data
Registration from the RRC P-5 organization report, refreshed weekly. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports by the operator that filed them, through the statewide reported-through month; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/operators/tx/101846, documented in the API reference.