OPERATORS · TEXAS · P-5 NUMBER 69510
Big Mountain Operating LLC
- P-5 status
- Active (A)
- P-5 last filed
- Apr 22, 2026
- Based in
- Decatur, TX
- Most permits, 12 months
- Callahan County
Big Mountain Operating LLC was issued 2 drilling permits in the past 12 months, versus 2 in the prior year, across 2 counties led by Callahan with 1. 0% were horizontal.
1 was issued in the past 90 days, after a quiet prior quarter.
The RRC wellbore file lists 4 wells under its operatorship (2 producing, 1 shut in).
Lease reports credit it with 8.38K barrels of oil and 0 mcf of gas in the 12 months reported through April 2026.
8 drilling permits have been issued to this operator number since 2019; its P-5 organization report was last filed April 22, 2026.
- 2
- permits, last 12 months
- +0%
- vs prior 12 months (2)
- 2
- counties, 12 months
- 2
- producing wells, of 4 of record
- 7
- leases it reports
- 0%
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 6, 2026
From permit to spud
FROM THE DATES ON ITS W-1 PERMITS · ALL TIME
A permit is a plan, not a well. These figures count only permits old enough to have spudded, six months and more, and read the spud, cancel, and expiry dates the RRC records on each one.
- 86%
- spud rate · 6 of 7 mature permits
- 20
- median days permit to spud · middle half 17–24
- 0
- spuds, last 180 days -100%
- 0%
- canceled · 0 permits
- 2
- expired undrilled
- 1
- permits a year over 8 active years
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 2 · prior 12 2(+0%)
Counties
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
| County | 12 mo | All time | Wells | Last |
|---|---|---|---|---|
| Gaines county → | 1 | 5 | 3 | Mar 24, 2026 |
| Callahan county → | 1 | 1 | 0 | Sep 4, 2026 |
| Wilbarger county → | — | 1 | 0 | Jun 2, 2023 |
| Young county → | — | 1 | 0 | Feb 5, 2019 |
All 8 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 |
|---|---|---|
| Glorieta | 3 | 3 |
| Spraberry | 3 | 3 |
| Clear Fork | 2 | 2 |
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 →
- 8.38K
- bbl oil, last 12 reported months
- —
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 20.8K
- bbl oil since reporting began
Last 12 months 0 · prior 12 0
Big Mountain Operating LLC: Gas 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 →
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 |
|---|---|---|
| Bro (Wolfcamp)12104500 | 1 | 1 |
| Morris (Strawn)62970800 | 1 | 0 |
| Spraberry (Trend Area)85280300 | 1 | 0 |
| Tex-Flor (Wolfcamp)88969800 | 1 | 1 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Active (A)
- Last filed Apr 22, 2026
- Oil operator
- Address
- PO Box 329
- Decatur, TX 76234
- (940) 549-0131
- Officers and agents
- Harvey, Chad · President
- Harvey, Amanda · Secretary,vice President
- Palmour, Vicki · Filing Agent
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 918276 | Sep 6, 2026 | Sep 4, 2026 | Big Mountain Operating LLC | Callahan | Cunningham #1 | 2,200 | 05937212 |
| 914209 | Mar 24, 2026 | Mar 24, 2026 | Big Mountain Operating LLC | Gaines | Timberwolf #1 | 10,500 | 16539023 |
| 911189 | Oct 22, 2025 | Oct 22, 2025 | Big Mountain Operating LLC | Gaines | Red Wolf #1 | 9,589 | 16539019 |
| 904879 | Dec 31, 2024 | Dec 31, 2024 | Big Mountain Operating LLC | Gaines | Grey Wolf #1 | 10,500 | 16538974 |
| 890846 | Jun 2, 2023 | Jun 2, 2023 | Big Mountain Operating LLC | Wilbarger | Doans Crossing #1 | 5,810 | 48733307 |
| 869642 | May 12, 2021 | May 12, 2021 | Big Mountain Operating LLC | Gaines | Luxor #1 | 9,000 | 16538829 |
| 869642 | May 12, 2021 | May 12, 2021 | Big Mountain Operating LLC | Gaines | Luxor #1 | 9,000 | 16538829 |
| 848667 | Feb 5, 2019 | Feb 5, 2019 | Big Mountain Operating LLC | Young | Arnold #1 | 5,500 | 50342418 |
| 298379 | Feb 24, 1986 | Feb 24, 1986 | Cities Service Oil & Gas Corp. | Wise | Tarrant E #1 | 6,025 | 49701383 |
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/69510, documented in the API reference.