Texas oil lease
ProducingDRUM, L. R.
Drum, L. R. is an oil lease in Young County, Texas, operated by Mammoth Operating LLC in the Young County Regular field.
4 wells
- Operator
- Mammoth Operating LLC
- County
- Young County
- Field
- Young County Regular
- RRC lease
- 09-07704
Is your check right?
Where it sits
This county
- Oil in Jul 2026
- 33 bbl
- Reporting since
- Jan 2020
Production by month
Oil output rose 17% over the last 12 months
- Oil (bars)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
No gas disposition reported for this lease
Who has run this lease
The operator changed once, most recently in Jan 2024
- Mammoth Operating LLC Jan 2024 to now
- J-LYN Oil Co. Jan 2020 to Dec 2023
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
4 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-503-40032 | 5 | Active |
| 42-503-82113 | 1 | Active |
| 42-503-82114 | 2 | Active |
| 42-503-82115 | 3 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Sentinel Transportation, LLC | Oil | Gathers | 100 | Mar 1, 2022 | – |
| Gulfmark Energy, Inc. | Oil | Gathers | 100 | Oct 1, 2018 | Mar 1, 2022 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
30 acres on the newest permit
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-503-40032 | 5 | Jun 30, 1989 | Jul 23, 1989 | 30 |
| 42-503-82113 | 1 | – | Jun 10, 1955 | – |
| 42-503-82114 | 2 | – | Jun 3, 1955 | – |
| 42-503-82115 | 3 | – | Jun 13, 1955 | – |
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jul 2026Mammoth Operating | 33 | 47 | $80.46 | $2.89 |
| Jun 2026Mammoth Operating | 34 | 0 | $84.81 | $3.15 |
| May 2026Mammoth Operating | 42 | 43 | $102.13 | $2.94 |
| Apr 2026Mammoth Operating | 31 | 30 | $100.32 | $2.77 |
| Mar 2026Mammoth Operating | 47 | 53 | $91.38 | $3.04 |
| Feb 2026Mammoth Operating | 31 | 0 | $64.51 | $3.62 |
| Jan 2026Mammoth Operating | 25 | 96 | $60.04 | $7.72 |
| Dec 2025Mammoth Operating | 64 | 0 | $57.97 | $4.26 |
| Nov 2025Mammoth Operating | 49 | 47 | $60.06 | $3.79 |
| Oct 2025Mammoth Operating | 46 | 72 | $60.89 | $3.19 |
| Sep 2025Mammoth Operating | 41 | 47 | $63.96 | $2.97 |
| Aug 2025Mammoth Operating | 35 | 0 | $64.86 | $2.91 |
| Jul 2025Mammoth Operating | 46 | 41 | $68.39 | $3.20 |
| Jun 2025Mammoth Operating | 55 | 123 | $68.17 | $3.02 |
| May 2025Mammoth Operating | 33 | 0 | $62.17 | $3.12 |
| Apr 2025Mammoth Operating | 33 | 0 | $63.54 | $3.42 |
| Mar 2025Mammoth Operating | 10 | 58 | $68.24 | $4.12 |
| Feb 2025Mammoth Operating | 20 | 0 | $71.53 | $4.19 |
| Jan 2025Mammoth Operating | 27 | 77 | $75.74 | $4.13 |
| Dec 2024Mammoth Operating | 33 | 0 | $70.12 | $3.01 |
| Nov 2024Mammoth Operating | 36 | 99 | $69.95 | $2.12 |
| Oct 2024Mammoth Operating | 34 | 0 | $71.99 | $2.20 |
| Sep 2024Mammoth Operating | 39 | 69 | $70.24 | $2.28 |
| Aug 2024Mammoth Operating | 42 | 0 | $76.68 | $1.99 |
| Jul 2024Mammoth Operating | 30 | 47 | $81.80 | $2.07 |
| Jun 2024Mammoth Operating | 35 | 75 | $79.77 | $2.54 |
| May 2024Mammoth Operating | 45 | 0 | $80.02 | $2.12 |
| Apr 2024Mammoth Operating | 51 | 57 | $85.35 | $1.60 |
| Mar 2024Mammoth Operating | 77 | 86 | $81.28 | $1.49 |
| Feb 2024Mammoth Operating | 49 | 0 | $77.25 | $1.72 |
| Jan 2024Mammoth Operating | 59 | 0 | $74.15 | $3.18 |
| Dec 2023J-LYN Oil | 81 | 161 | $71.90 | $2.52 |
| Nov 2023J-LYN Oil | 78 | 0 | $77.69 | $2.71 |
| Oct 2023J-LYN Oil | 72 | 172 | $85.64 | $2.98 |
| Sep 2023J-LYN Oil | 86 | 0 | $89.43 | $2.64 |
| Aug 2023J-LYN Oil | 81 | 167 | $81.39 | $2.58 |
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.
How to check your stub against this lease Checks stopped on this lease? See the likely reasonsDo your checks match this lease?
Nearby
This lease belongs to
Mammoth Operating LLC in Young County
- EDWARDS 127
1,188 bbl
- MCCLURG, M. L.
341 bbl
Young County Regular field
- CAMPBELL, R., EST. -A-
495 bbl
- BOYDSTON
495 bbl
- GUIMARIN, TOM
491 bbl
- WOODARD
343 bbl
- MORGAN, C. V. -A-
485 bbl
- MINKLEY, CHARLES ET AL
482 bbl
- BEARDEN, A.
480 bbl
- NEVA LOU
479 bbl
- PRIDEAUX, R.O. UNIT
473 bbl
- BURNETT, OPAL D
449 bbl
Leases within 10 km
- MCCLURG, M. L.
341 bbl · 0.2 km
- EDWARDS 127
1,188 bbl · 0.2 km
- PRIDEAUX 128
0 bbl · 0.4 km
- DRUM
535 bbl · 0.4 km
- BLOODWORTH
273 bbl · 0.8 km
- PRIDEAUX, E. R.
170 bbl · 1.1 km
- BROWN
0 bbl · 1.1 km
- BROWN, FRANK
34 bbl · 1.2 km
- DAILY
0 bbl · 1.3 km
- DAILY
360 bbl · 1.4 km
Drilling permits within 10 km
MCKINLEY #112
new drill · Tomsha LLC · Young County · 5.2 km
Permit 0918602 · Sep 21, 2026
MCKINLEY #111
new drill · Tomsha LLC · Young County · 5.3 km
Permit 0918601 · Sep 14, 2026
LOVING RANCH #11
new drill · Borderline Operating Corp. · Young County · 6.7 km
Permit 0918000 · Aug 24, 2026
MCCLURG, M. L. #18
new drill · Mammoth Operating LLC · Young County · 0.4 km
Permit 0917186 · Jul 17, 2026
DAVIS 'D' #4
new drill · Pop Operating Company · Jack County · 7.3 km
Permit 0916297 · Jun 10, 2026