42-371-39153
Final CompletionSTATE LANA 38
PECOS County · District 8 · MAMMOTH EXPLORATION LLC · HOEFS T-K (WOLFCAMP)
Permits
3
Max Depth
10,000 ft
First Permit
2014-02-12
Latest Activity
2016-06-15
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2014-03-07
Shut-In
—
Plugged
2022-07-11
EWA / Production operator mismatch
Scheduling: MAMMOTH EXPLORATION LLC ≠ Production: EOG RESOURCES, INC. (reported 2015-03)
EWA / Permit operator mismatch
Scheduling: MAMMOTH EXPLORATION LLC ≠ Permit: EOG RESOURCES, INC.
Resolved via: scheduling → MAMMOTH EXPLORATION LLC
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
2014-08
Last Production
2022-09
Injection / Disposal
PECOS County disposal market →Permitted Volume
25,000 bbl/d
Max Pressure
2,275 psi
Injection Interval
4,550–6,700 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2022-04-01)
Operator History
originally filed by EOG RESOURCES, INC. — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (13) Elevation 3,140 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 1,287 ft | +1,853 ft |
| DELAWARE | 4,566 ft | -1,426 ft |
| BONE SPRINGS (Bone Spring) | 6,350 ft | -3,210 ft |
| WOLFCAMP | 8,301 ft | -5,161 ft |
| GLORIETA | — | — |
| GRAYBURG | — | — |
| O'BRIEN | — | — |
| QUEEN | — | — |
| SEVEN RIVERS | — | — |
| SOMA | — | — |
| TOBORG | — | — |
| TUBB | — | — |
| YATES | — | — |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 3,560–4,150 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,853 ft | 1,500 sx |
| 9.625" | 4,503 ft | 1,150 sx |
| 7" | 9,971 ft | 720 sx |
Permit History (3)
Applications (3)
Records & Logs
2 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 1
- Max Depth
- 10,000 ft
- Drill Type
- Vertical
- County
- PECOS
- District
- 8
- Operator
- MAMMOTH EXPLORATION LLC
- Completed
- 2014-03-07
Operator
- Name
- MAMMOTH EXPL LLC
- Location
- MIDLAND
- P-5 Status
- Inactive (filed 2023-07-21)
- Cum Oil (all leases)
- 827,059 bbl
- Cum Gas (all leases)
- 186,859 mcf
- Total Permits
- 38