WELL · 42-389-40478 · DISTRICT 8
Great Dane State 55-4-23-20 B #21H
Reeves County · Phantom (Wolfcamp) field · Producing · Horizontal
Great Dane State 55-4-23-20 B #21H (API 42-389-40478) is a horizontal well in Reeves County operated by Anadarko E&P Onshore LLC, completed October 18, 2023 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 24, 2023, permitted to 13,000 ft.
Completion filings report 6 formation tops, including Castile, Bell Canyon, Delaware, Cherry Canyon.
No lease production has been reported under this well’s leases.
Operator of record
Houston, TX · P-5 Y, filed Sep 4, 2025 · 4,573 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 LLCFeb 24, 2023 |
- 13,000
- total depth, ft
- 1
- permits on file
- Feb 24, 2023
- last permit issued
- Oct 18, 2023
- completed
- 0
- cumulative oil, bbl
- 1.92M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2023 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 18, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.579605, -103.727338
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Reeves 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 |
|---|---|---|---|---|---|---|
| Great Dane State 55-4-23-20 B G-10-296966 | Phantom (Wolfcamp) | Anadarko E&P Onshore LLC | 1 | 0 | 1.92M | Oct 2023 – Jul 2026 |
Gas, mcf lease total
Last 12 months 578,256 · prior 12 734,887(-21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Onshore LLCOct 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 888218-99 | Drill | Anadarko E&P Onshore LLC | Feb 14, 2023 | Feb 24, 2023 | Apr 22, 2023 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-296966 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,896 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CastileCASTILLE | 2,656 | 240 |
| Bell Canyon | 3,997 | -1,101 |
| Delaware | 3,997 | -1,101 |
| DelawareDELAWARE CONSOLIDATED GAS | 4,042 | -1,146 |
| DelawareFORD / DELAWARE | 4,117 | -1,221 |
| Cherry Canyon | 5,012 | -2,116 |
| Bone Spring | 7,574 | -4,678 |
| Bone SpringBONE SPRING 2 | 8,765 | -5,869 |
| Bone SpringBONE SPRING 3 | 9,544 | -6,648 |
| Permian (undifferentiated)PERMIAN (UNDEFINED) | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,075 | 21,097 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,140 | 17.5 | 3,035 S |
| 9.625 | 10,466 | 12.25 | 1,860 S |
| 7 | 11,516 | 8.5 | 2,110 S |
| 5.5 | 21,215 | 8.5 | 2,110 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 | May 30, 2024 | Jan 31, 2024 | 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 42-389-40478 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-40478 → 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.
Great Dane State 55-4-23-20 D42-389-40479
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Castile | 2,656 | 240 |
| Bell Canyon | 3,996 | -1,100 |
| Delaware | 3,996 | -1,100 |
| Delaware | 4,041 | -1,145 |
| Delaware | 4,116 | -1,220 |
| Cherry Canyon | 4,999 | -2,103 |
| Bone Spring | 7,580 | -4,684 |
| Bone Spring | 8,764 | -5,868 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 G42-389-40498
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,984 | -1,089 |
| Delaware | 4,006 | -1,111 |
| Delaware | 4,011 | -1,116 |
| Cherry Canyon | 4,996 | -2,101 |
| Bone Spring | 7,569 | -4,674 |
| Bone Spring | 8,748 | -5,853 |
| Bone Spring | 9,529 | -6,634 |
| Wolfcamp | 10,474 | -7,579 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 D42-389-40497
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,984 | -1,089 |
| Delaware | 4,007 | -1,112 |
| Delaware | 4,014 | -1,119 |
| Delaware | 4,026 | -1,131 |
| Cherry Canyon | 4,992 | -2,097 |
| Bone Spring | 7,568 | -4,673 |
| Bone Spring | 8,757 | -5,862 |
| Bone Spring | 9,538 | -6,643 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 E42-389-40499
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,984 | -1,089 |
| Delaware | 4,009 | -1,114 |
| Delaware | 4,015 | -1,120 |
| Delaware | 4,028 | -1,133 |
| Cherry Canyon | 4,995 | -2,100 |
| Bone Spring | 7,576 | -4,681 |
| Bone Spring | 8,757 | -5,862 |
| Bone Spring | 9,543 | -6,648 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 I42-389-41154
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,983 | -1,088 |
| Delaware | 4,006 | -1,111 |
| Delaware | 4,012 | -1,117 |
| Delaware | 4,025 | -1,130 |
| Cherry Canyon | 4,992 | -2,097 |
| Bone Spring | 7,563 | -4,668 |
| Bone Spring | 8,751 | -5,856 |
| Bone Spring | 9,536 | -6,641 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 H42-389-41153
0.0 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,984 | -1,089 |
| Delaware | 4,006 | -1,111 |
| Delaware | 4,011 | -1,116 |
| Delaware | 4,025 | -1,130 |
| Cherry Canyon | 4,996 | -2,101 |
| Bone Spring | 7,564 | -4,669 |
| Bone Spring | 8,748 | -5,853 |
| Bone Spring | 9,529 | -6,634 |
10 TOPS · FIRST 8
Great Dane State 55-4-23-20 C42-389-40477
0.7 KM · Anadarko E&P Onshore LLC · Section with this well →
| Castile | 2,656 | 242 |
| Delaware | 3,993 | -1,095 |
| Bell Canyon | 3,993 | -1,095 |
| Delaware | 4,038 | -1,140 |
| Delaware | 4,113 | -1,215 |
| Cherry Canyon | 4,985 | -2,087 |
| Bone Spring | 7,561 | -4,663 |
| Bone Spring | 8,758 | -5,860 |
10 TOPS · FIRST 8
Greyhound State 55-4-32-35 C42-389-40496
0.7 KM · Anadarko E&P Onshore LLC · Section with this well →
| Bell Canyon | 3,994 | -1,096 |
| Delaware | 4,017 | -1,119 |
| Delaware | 4,022 | -1,124 |
| Delaware | 4,032 | -1,134 |
| Cherry Canyon | 4,997 | -2,099 |
| Bone Spring | 7,568 | -4,670 |
| Bone Spring | 8,754 | -5,856 |
| Bone Spring | 9,541 | -6,643 |
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
Developers: this page as JSON is GET /v1/data/wells/38940478, documented in the API reference.