WELL · 42-371-39598 · DISTRICT 8
Stewart 28-21 Unit #1SB
Pecos County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
Stewart 28-21 Unit #1SB (API 42-371-39598) is a horizontal well in Pecos County operated by Blue Arrow Operating LLC, completed July 3, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued August 9, 2017, permitted to 10,400 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 11 formation tops, including Rustler, Glorieta, Grayburg, O'Brien.
Its lease has reported 1.64M barrels of oil and 4.06M mcf of gas since March 2016, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
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 LLCAug 9, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,400
- total depth, ft
- 3
- permits on file
- Aug 9, 2017
- last permit issued
- Jul 3, 2018
- completed
- 1.64M
- cumulative oil, bbl
- 4.06M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 3, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.143864, -103.220786
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Pecos 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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Stewart 28-21 Unit O-10-48229 | Hoefs T-K (Wolfcamp) | Blue Arrow Operating, LLC | 3 | 1.64M | 4.06M | Mar 2016 – Jul 2026 |
Oil, barrels lease total
Last 12 months 38,615 · prior 12 60,029(-36%)
Gas, mcf lease total
Last 12 months 163,111 · prior 12 277,716(-41%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Brigham Resources Operating, LLCMar 2016 → Feb 2017
- 2Diamondback E&P LLCMar 2017 → Feb 2026
- 3Blue Arrow Operating, LLCMar 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 829547-97 | Drill | Diamondback E&P LLC | Aug 28, 2018 | Aug 9, 2017 | — | 10,400 |
| 829547-98 | Drill | Diamondback E&P LLC | Sep 7, 2017 | Aug 9, 2017 | — | 10,400 |
| 829547-99 | Drill | Diamondback E&P LLC | Aug 4, 2017 | Aug 9, 2017 | Nov 9, 2017 | 10,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-48229 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,745 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,010 | 1,735 |
| Glorieta | — | — |
| Grayburg | — | — |
| O'Brien | — | — |
| Queen | — | — |
| Rustler | — | — |
| San AndresSAN ANDRES - USABLE QUALITY WATE | — | — |
| Seven Rivers | — | — |
| Soma | — | — |
| Toborg | — | — |
| Tubb | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,789 | 19,918 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,735 | 16 | 780 S |
| 9.625 | 8,717 | 12.25 | 670 S |
| 5.5 | 20,015 | 8.5 | 3,775 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 | Jan 16, 2019 | Nov 14, 2018 | Yes |
| 00 | Oct 23, 2018 | Aug 1, 2018 | 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 42-371-39598 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-39598 → 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.
Stewart 28-21 Unit42-371-39599
0.0 KM · Diamondback E&P LLC · Section with this well →
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
State McGary 16-9 UD42-371-40327
0.3 KM · Diamondback E&P LLC · Section with this well →
| Yates | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — | |
| O'Brien | — |
10 TOPS · FIRST 8
State McGary 16-9 UC42-371-40306
0.3 KM · Diamondback E&P LLC · Section with this well →
| Atoka | — | |
| Caballos | — | |
| Devonian | — | |
| Ellenburger | — | |
| Grayburg | — | |
| Mississippian | — | |
| Montoya | — | |
| O'Brien | — |
16 TOPS · FIRST 8
State McGary 16-9 UB42-371-40279
0.3 KM · Diamondback E&P LLC · Section with this well →
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| Capitan | — | |
| Yates | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
Stewart 28-21 SB Unit42-371-40521
0.4 KM · Blue Arrow Operating, LLC · Section with this well →
| Rustler | 903 | 1,847 |
| Cherry Canyon | 6,087 | -3,337 |
| Capitan | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Seven Rivers | — | |
| Soma | — |
10 TOPS · FIRST 8
State McGary 16-9 UA42-389-39177
1.1 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,224 | -2,461 |
| Bell Canyon | 5,246 | -2,483 |
| Cherry Canyon | 6,055 | -3,292 |
| Bone Spring | 8,100 | -5,337 |
| Wolfcamp | — | |
| Castile | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
Altura 10-3 Unit42-389-38641
1.6 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 |
| Wolfcamp | — | |
| Bell Canyon | — | |
| Castile | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
Altura 15-22 Unit42-389-38642
1.6 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,186 | -2,468 |
| Cherry Canyon | 6,059 | -3,341 |
| Bone Spring | 7,638 | -4,920 |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — | |
| Permian (undifferentiated) | — | |
| Wolfcamp | — |
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/37139598, documented in the API reference.