WELL · 42-301-36943 · DISTRICT 8
Mammoth 54-1-18-19 H #21H
Loving County · Phantom (Wolfcamp) field · Producing · Horizontal
Mammoth 54-1-18-19 H #21H (API 42-301-36943) is a horizontal well in Loving County operated by Anadarko E&P Onshore LLC, completed January 3, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 31, 2024, permitted to 11,977 ft.
Completion filings report 8 formation tops, including Bell Canyon, Delaware, Cherry Canyon, Brushy Canyon.
No lease production has been reported under this well’s leases.
Operator of record
Houston, TX · P-5 Y, filed Sep 4, 2025 · 4,574 permits on file · (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Anadarko E&P Onshore LLC |
| Production reports | Anadarko E&P Onshore LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Onshore LLCMay 31, 2024 |
- 11,977
- total depth, ft
- 1
- permits on file
- May 31, 2024
- last permit issued
- Jan 3, 2025
- completed
- 0
- cumulative oil, bbl
- 1.66M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 3, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.967094, -103.695162
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Loving County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mammoth 54-1-18-19 H G-10-299713 | Phantom (Wolfcamp) | Anadarko E&P Onshore LLC | 1 | 0 | 1.66M | Jan 2025 – Jul 2026 |
Gas, mcf lease total
Last 12 months 979,603 · prior 12 680,638(+44%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Onshore LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 900029-99 | Drill | Anadarko E&P Onshore LLC | May 28, 2024 | May 31, 2024 | Aug 15, 2024 | 11,977 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-299713 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,045 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Bell Canyon | 4,238 | -1,193 |
| Delaware | 4,238 | -1,193 |
| Cherry Canyon | 5,180 | -2,135 |
| Brushy Canyon | 6,654 | -3,609 |
| Bone Spring | 8,326 | -5,281 |
| Bone Spring2ND BONE SPRING | 9,540 | -6,495 |
| Bone Spring3RD BONE SPRING | 10,423 | -7,378 |
| Wolfcamp | 11,396 | -8,351 |
| Pennsylvanian | — | — |
| Red Bluff | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,349 | 22,741 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,992 | 17.5 | 2,220 S |
| 10.75 | 4,119 | 12.25 | 625 S |
| 7.825 | 12,297 | 9.875 | 2,458 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 14, 2025 | Jul 2, 2025 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-301-36943 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-301-36943 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Mammoth 54-1-18-19 I42-301-36944
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,247 | -1,202 |
| Delaware | 4,247 | -1,202 |
| Cherry Canyon | 5,178 | -2,133 |
| Brushy Canyon | 6,666 | -3,621 |
| Bone Spring | 8,341 | -5,296 |
| Bone Spring | 9,550 | -6,505 |
| Bone Spring | 10,427 | -7,382 |
| Wolfcamp | 11,407 | -8,362 |
10 TOPS · FIRST 8
Mammoth 54-1-18-19 T42-301-37372
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,255 | -1,210 |
| Delaware | 4,255 | -1,210 |
| Cherry Canyon | 5,195 | -2,150 |
| Brushy Canyon | 6,687 | -3,642 |
| Bone Spring | 8,346 | -5,301 |
| Atoka | — | |
| Wolfcamp | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Mammoth 54-1-18-19 J42-301-36945
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,244 | -1,199 |
| Delaware | 4,244 | -1,199 |
| Cherry Canyon | 5,198 | -2,153 |
| Brushy Canyon | 6,684 | -3,639 |
| Bone Spring | 8,351 | -5,306 |
| Wolfcamp | 11,420 | -8,375 |
| Red Bluff | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Mammoth 54-1-18-19 S42-301-37367
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,288 | -1,243 |
| Delaware | 4,288 | -1,243 |
| Cherry Canyon | 5,193 | -2,148 |
| Brushy Canyon | 6,688 | -3,643 |
| Avalon | 8,330 | -5,285 |
| Bone Spring | 9,251 | -6,206 |
| Bone Spring | 9,540 | -6,495 |
| Wolfcamp | — |
10 TOPS · FIRST 8
Mammoth 54-1-18-19 R42-301-37371
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,262 | -1,217 |
| Delaware | 4,262 | -1,217 |
| Cherry Canyon | 5,176 | -2,131 |
| Brushy Canyon | 6,665 | -3,620 |
| Bone Spring | 8,316 | -5,271 |
| Atoka | — | |
| Red Bluff | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Sierra State 54-1-7-6 A42-301-36650
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,255 | -1,209 |
| Delaware | 4,255 | -1,209 |
| Cherry Canyon | 5,184 | -2,138 |
| Brushy Canyon | 6,545 | -3,499 |
| Bone Spring | 8,304 | -5,258 |
| Wolfcamp | 11,382 | -8,336 |
| Atoka | — | |
| Strawn | — |
10 TOPS · FIRST 8
Sierra State 54-1-7-6 B42-301-36651
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,253 | -1,208 |
| Delaware | 4,253 | -1,208 |
| Cherry Canyon | 5,188 | -2,143 |
| Brushy Canyon | 6,643 | -3,598 |
| Bone Spring | 8,330 | -5,285 |
| Bone Spring | 9,543 | -6,498 |
| Bone Spring | 10,411 | -7,366 |
| Wolfcamp | 11,404 | -8,359 |
10 TOPS · FIRST 8
Sierra State 54-1-7-6 C42-301-36652
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 4,262 | -1,216 |
| Delaware | 4,262 | -1,216 |
| Cherry Canyon | 5,209 | -2,163 |
| Brushy Canyon | 6,602 | -3,556 |
| Bone Spring | 8,305 | -5,259 |
| Bone Spring | 8,549 | -5,503 |
| Bone Spring | 10,426 | -7,380 |
| Wolfcamp | 11,404 | -8,358 |
10 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
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