WELL · 42-227-40159 · DISTRICT 8
Asro Jr. Unit #4WB
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Asro JR. Unit #4WB (API 42-227-40159) is a horizontal well in Howard County operated by Diamondback E&P LLC, completed October 5, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 31, 2019, permitted to 9,400 ft.
Completion filings report 10 formation tops, including Yates, Seven Rivers, San Andres, Glorieta.
Its lease has reported 894K barrels of oil and 3.43M mcf of gas since October 2019, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCMay 31, 2019 |
- 9,400
- total depth, ft
- 2
- permits on file
- May 31, 2019
- last permit issued
- Oct 5, 2020
- completed
- 894K
- cumulative oil, bbl
- 3.43M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 5, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.400596, -101.646285
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Howard 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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Asro Jr. Unit O-10-53803 | Spraberry (Trend Area) | Diamondback E&P LLC | 4 | 894K | 3.43M | Oct 2019 – Jul 2026 |
Gas, mcf lease total
Last 12 months 620,352 · prior 12 246,196(+152%)
Oil, barrels lease total
Last 12 months 28,367 · prior 12 26,445(+7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCOct 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 852759-98 | Drill | Diamondback E&P LLC | Aug 6, 2020 | May 31, 2019 | Jun 24, 2019 | 9,400 |
| 852759-99 | Drill | Diamondback E&P LLC | May 3, 2019 | May 31, 2019 | Jun 24, 2019 | 9,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-53803 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,605 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,963 | 642 |
| Seven Rivers | 2,074 | 531 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,607 | -1,002 |
| Glorieta | 4,390 | -1,785 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 4,762 | -2,157 |
| Spraberry | 6,630 | -4,025 |
| Dean | 7,912 | -5,307 |
| Wolfcamp | 8,002 | -5,397 |
| Coleman Junction | — | — |
| Leonard | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,639 | 18,973 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,204 | 17.5 | 1,290 S |
| 9.625 | 7,937 | 12.25 | 1,180 S |
| 5.5 | 19,064 | 8.5 | 2,960 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 | Dec 11, 2020 | Nov 24, 2020 | Yes |
| 00 | Aug 28, 2020 | Jul 7, 2020 | 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 42-227-40159 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-40159 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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.
Asro Jr. Unit42-227-39772
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,964 | 641 |
| Seven Rivers | 2,076 | 529 |
| San Andres | 3,604 | -999 |
| San Andres | 3,604 | -999 |
| Glorieta | 4,387 | -1,782 |
| Clear Fork | 4,761 | -2,156 |
| Clear Fork | 4,761 | -2,156 |
| Spraberry | 6,625 | -4,020 |
12 TOPS · FIRST 8
Asro Jr. Unit42-227-40240
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,960 | 2,799 |
| Seven Rivers | 2,071 | 2,688 |
| San Andres | 3,603 | 1,156 |
| Glorieta | 4,369 | 390 |
| Clear Fork | 4,759 | 0 |
| Spraberry | 6,635 | -1,876 |
| Dean | 7,902 | -3,143 |
| Wolfcamp | 7,965 | -3,206 |
10 TOPS · FIRST 8
Asro Jr. Unit42-227-39773
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,960 | 644 |
| Seven Rivers | 2,071 | 533 |
| San Andres | 3,603 | -999 |
| Glorieta | 4,381 | -1,777 |
| Clear Fork | 4,753 | -2,149 |
| Spraberry | 6,625 | -4,021 |
| Coleman Junction | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Asro 13 Unit42-227-40167
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,964 | 642 |
| Seven Rivers | 2,133 | 473 |
| San Andres | 3,599 | -993 |
| Glorieta | 4,346 | -1,740 |
| Clear Fork | 4,735 | -2,129 |
| Spraberry | 6,622 | -4,016 |
| Dean | 7,899 | -5,293 |
| Wolfcamp | 7,963 | -5,357 |
10 TOPS · FIRST 8
Asro 13 Unit42-227-39512
0.1 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,969 | 637 |
| Seven Rivers | 2,094 | 512 |
| San Andres | 3,607 | -1,001 |
| Glorieta | 4,377 | -1,771 |
| Clear Fork | 4,756 | -2,150 |
| Leonard | 6,400 | -3,794 |
| Spraberry | 6,636 | -4,030 |
| Dean | 7,915 | -5,309 |
10 TOPS · FIRST 8
Asro 13 Unit42-227-39513
0.1 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,964 | 642 |
| Seven Rivers | 2,090 | 516 |
| San Andres | 3,612 | -1,006 |
| Glorieta | 4,377 | -1,771 |
| Clear Fork | 4,751 | -2,145 |
| Leonard | 6,400 | -3,794 |
| Spraberry | 6,638 | -4,032 |
| Dean | — |
10 TOPS · FIRST 8
Asro 13 Unit42-227-39514
0.1 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,942 | 691 |
| Seven Rivers | 2,068 | 565 |
| Coleman Junction | 2,400 | 233 |
| San Andres | 3,608 | -975 |
| Glorieta | 4,367 | -1,734 |
| Clear Fork | 4,737 | -2,104 |
| Leonard | 6,400 | -3,767 |
| Spraberry | 6,621 | -3,988 |
10 TOPS · FIRST 8
Asro 13 Unit42-227-39515
0.1 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,938 | 669 |
| Seven Rivers | 2,063 | 544 |
| Coleman Junction | 3,400 | -793 |
| San Andres | 3,595 | -988 |
| Glorieta | 4,348 | -1,741 |
| Clear Fork | 4,714 | -2,107 |
| Leonard | 6,400 | -3,793 |
| Spraberry | 6,619 | -4,012 |
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/22740159, documented in the API reference.