WELL · 42-389-38966 · DISTRICT 8
State Armstrong 9-4 D #8BS
Reeves County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
State Armstrong 9-4 D #8BS (API 42-389-38966) is a horizontal well in Reeves County operated by Blue Arrow Operating LLC, completed August 12, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued May 24, 2021, permitted to 13,000 ft.
It was permitted by Diamondback E&P LLC and has since transferred to Blue Arrow Operating LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Delaware, Cherry Canyon, Bone Spring, Bell Canyon.
Its lease has reported 209K barrels of oil and 424K mcf of gas since April 2020, last reporting in July 2026.
Operator of record
Permitted by Diamondback E&P LLC; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Apr 4, 2026 · 45 permits on file · (432) 528-8954
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Blue Arrow Operating LLC |
| Production reports | Blue Arrow Operating, LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCMay 24, 2021 |
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
- May 24, 2021
- last permit issued
- Aug 12, 2020
- completed
- 209K
- cumulative oil, bbl
- 424K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 12, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.163500, -103.226253
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 |
|---|---|---|---|---|---|---|
| State Armstrong 9-4 D O-10-60285 | Hoefs T-K (Wolfcamp) | Blue Arrow Operating, LLC | 1 | 209K | 424K | Apr 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 11,334 · prior 12 6,890(+64%)
Gas, mcf lease total
Last 12 months 34,248 · prior 12 36,925(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCAug 2020 → Feb 2026
- 2Blue Arrow Operating, LLCMar 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 861794-97 | Drill | Diamondback E&P LLC | Nov 10, 2023 | May 24, 2021 | Apr 9, 2020 | 9,406 |
| 861794-98 | Drill | Diamondback E&P LLC | May 24, 2021 | May 24, 2021 | Apr 9, 2020 | 13,000 |
| 861794-99 | Drill | Diamondback E&P LLC | Feb 10, 2020 | May 24, 2021 | Mar 27, 2020 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-60285 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,751 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 5,223 | -2,472 |
| Cherry Canyon | 5,685 | -2,934 |
| Bone Spring | 7,611 | -4,860 |
| Bell Canyon | — | — |
| CastileCASTILLE | — | — |
| DelawareDELAWARE CONSOLIDATED GAS | — | — |
| DelawareFORD / DELAWARE | — | — |
| Pennsylvanian | — | — |
| Permian (undifferentiated)PERMIAN (UNDEFINED) | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,547 | 17,216 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,560 | 13.5 | 1,000 S |
| 5.5 | 8,577 | 6.75 | 1,285 S |
| 7.625 | 8,650 | 9.875 | 1,030 S |
| 5.5 | 17,282 | 6.75 | 1,285 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 | Feb 29, 2024 | Jul 7, 2023 | — |
| 00 | Feb 23, 2024 | Nov 20, 2023 | 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 42-389-38966 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-38966 → 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.
State Armstrong 9-4 Unit42-389-38967
0.0 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,223 | -2,471 |
| Cherry Canyon | 5,685 | -2,933 |
| Bone Spring | 7,611 | -4,859 |
| Delaware | — | |
| Delaware | — | |
| Wolfcamp | — | |
| Permian (undifferentiated) | — | |
| Castile | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38526
0.3 KM · Diamondback E&P LLC · Section with this well →
| Rustler | 866 | 1,886 |
| Delaware | 5,222 | -2,470 |
| Bone Spring | 8,309 | -5,557 |
| Wolfcamp | 10,307 | -7,555 |
| Delaware | — | |
| Delaware | — | |
| Permian (undifferentiated) | — | |
| Bell Canyon | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38527
0.3 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,195 | -2,443 |
| Bell Canyon | 5,226 | -2,474 |
| Cherry Canyon | 6,103 | -3,351 |
| Bone Spring | 8,294 | -5,542 |
| Wolfcamp | 10,339 | -7,587 |
| Castile | — | |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38740
0.4 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,193 | -2,441 |
| Bell Canyon | 5,219 | -2,467 |
| Bone Spring | 8,287 | -5,535 |
| Wolfcamp | — | |
| Castile | — | |
| Cherry Canyon | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38742
0.4 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,196 | -2,444 |
| Bell Canyon | 5,226 | -2,474 |
| Bone Spring | 8,300 | -5,548 |
| Pennsylvanian | — | |
| Delaware | — | |
| Delaware | — | |
| Permian (undifferentiated) | — | |
| Cherry Canyon | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38078
0.6 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,192 | -2,455 |
| Bone Spring | 8,277 | -5,540 |
| Wolfcamp | 10,301 | -7,564 |
| Bell Canyon | — | |
| Delaware | — | |
| Castile | — | |
| Pennsylvanian | — | |
| Delaware | — |
10 TOPS · FIRST 8
State Armstrong 9-4 Unit42-389-38077
0.6 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,194 | -2,457 |
| Bone Spring | 8,279 | -5,542 |
| Wolfcamp | 10,310 | -7,573 |
| Permian (undifferentiated) | — | |
| Bell Canyon | — | |
| Delaware | — | |
| Delaware | — | |
| Cherry Canyon | — |
10 TOPS · FIRST 8
Altura 10-3 Unit42-389-38641
1.2 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,174 | -2,455 |
| Cherry Canyon | 6,060 | -3,341 |
| Bone Spring | 8,088 | -5,369 |
| Bell Canyon | — | |
| Wolfcamp | — | |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| 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/38938966, documented in the API reference.