WELL · 42-389-37266 · DISTRICT 8
Armadrilla State Unit 20-21E #10H
Reeves County · Wolfbone (Trend Area) field · Producing · Horizontal
Armadrilla State Unit 20-21e #10H (API 42-389-37266) is a horizontal well in Reeves County operated by Apache Corporation, completed November 4, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued June 14, 2018, permitted to 13,000 ft.
It was permitted by Primexx Operating Corporation and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 8 formation tops, including Delaware, Castile, Bell Canyon, Cherry Canyon.
Its lease has reported 310K barrels of oil and 2.54M mcf of gas since November 2018, last reporting in July 2026.
Operator of record
Permitted by Primexx Operating Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 4, 2025 · 9,754 permits on file · (713) 296-6400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Apr 2026 |
| Latest permit | Primexx Operating CorporationJun 14, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 3
- permits on file
- Jun 14, 2018
- last permit issued
- Nov 4, 2018
- completed
- 310K
- cumulative oil, bbl
- 2.54M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 4, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.183658, -103.640256
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 |
|---|---|---|---|---|---|---|
| Armadrilla State Unit 20-21E O-10-51245 | Wolfbone (Trend Area) | Apache Corporation | 1 | 310K | 2.54M | Nov 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 122,368 · prior 12 156,282(-22%)
Oil, barrels lease total
Last 12 months 7,174 · prior 12 7,641(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Primexx Operating CorporationNov 2018 → Sep 2021
- 2Callon Petroleum Operating CoOct 2021 → Jul 2024
- 3Apache CorporationAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 841205-97 | Drill | Primexx Operating Corporation | Apr 30, 2019 | Jun 14, 2018 | Jul 6, 2018 | 13,000 |
| 841205-98 | Drill | Primexx Operating Corporation | Nov 13, 2018 | Jun 14, 2018 | Jul 6, 2018 | 13,000 |
| 841205-99 | Drill | Primexx Operating Corporation | Jun 13, 2018 | Jun 14, 2018 | Jul 6, 2018 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-51245 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,780 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| DelawareFORD-DELAWARE | 2,500 | 280 |
| CastileCASTILLE | 2,800 | -20 |
| Bell Canyon | 4,671 | -1,891 |
| Delaware | 5,205 | -2,425 |
| Cherry Canyon | 5,512 | -2,732 |
| DelawareDELAWARE CONSOLIDATED GAS | 6,358 | -3,578 |
| Bone SpringBONE SPRINGS | 8,572 | -5,792 |
| Wolfcamp | 9,749 | -6,969 |
| Permian (undifferentiated)PERMIAN | 11,300 | -8,520 |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,403 | 20,448 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,495 | 17.5 | 1,940 S |
| 9.625 | 9,805 | 12.25 | 1,560 S |
| 5.5 | 20,448 | 7 | 2,745 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 | Jun 13, 2019 | Feb 21, 2019 | 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 42-389-37266 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-37266 → 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.
Terlingua Unit 15-1742-389-36489
0.1 KM · Primexx Operating Corporation · Section with this well →
| Delaware | 2,500 | 277 |
| Castile | 2,800 | -23 |
| Delaware | 4,500 | -1,723 |
| Bell Canyon | 4,636 | -1,859 |
| Cherry Canyon | 5,467 | -2,690 |
| Delaware | 6,500 | -3,723 |
| Bone Spring | 9,565 | -6,788 |
| Wolfcamp | 10,000 | -7,223 |
10 TOPS · FIRST 8
Terlingua State Unit 15-1742-389-38955
0.2 KM · Primexx Operating Corporation · Section with this well →
| Bell Canyon | — | |
| Wolfcamp | — | |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — | |
| Cherry Canyon | — |
10 TOPS · FIRST 8
Lujan State42-389-36305
0.4 KM · Primexx Operating Corporation · Section with this well →
| Bone Spring | — | |
| Bell Canyon | — | |
| Castile | — | |
| Cherry Canyon | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Medina State Unit 15-1742-389-38919
1.4 KM · Primexx Operating Corporation · Section with this well →
| Castile | — | |
| Bone Spring | — | |
| Cherry Canyon | — | |
| Delaware | — | |
| Delaware | — | |
| Mississippian | — | |
| Pennsylvanian | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
Medina Unit 15-1742-389-36494
1.4 KM · Primexx Operating Corporation · Section with this well →
| Delaware | 2,500 | 79 |
| Castile | 2,800 | -221 |
| Bell Canyon | 4,746 | -2,167 |
| Delaware | 5,400 | -2,821 |
| Cherry Canyon | 5,577 | -2,998 |
| Delaware | 6,500 | -3,921 |
| Bone Spring | 8,561 | -5,982 |
| Wolfcamp | 10,607 | -8,028 |
10 TOPS · FIRST 8
Lujan State42-389-35304
1.5 KM · Primexx Operating Corporation · Section with this well →
| Bell Canyon | 4,634 | -1,859 |
| Cherry Canyon | 5,512 | -2,737 |
| Bone Spring | 8,628 | -5,853 |
| Wolfcamp | 9,802 | -7,027 |
| Castile | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
Lujan State42-389-35519
1.5 KM · Primexx Operating Corporation · Section with this well →
| Bell Canyon | 4,634 | -1,859 |
| Cherry Canyon | 5,512 | -2,737 |
| Bone Spring | 8,628 | -5,853 |
| Wolfcamp | 9,802 | -7,027 |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
D-Day 106-105 Unit W42-389-38828
2.0 KM · Tall City Operations III LLC · Section with this well →
| Bell Canyon | 4,726 | -1,935 |
| Cherry Canyon | 5,557 | -2,766 |
| Bone Spring | 7,510 | -4,719 |
| Wolfcamp | 9,791 | -7,000 |
| Castile | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — |
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/38937266, documented in the API reference.