WELL · 42-317-44221 · DISTRICT 8
Winston 31-43 E #6WB
Martin County · Spraberry (Trend Area) field · Shut IN · Horizontal
Winston 31-43 E #6WB (API 42-317-44221) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed April 18, 2023 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 26, 2022, permitted to 10,400 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 512K barrels of oil and 1.72M mcf of gas since September 2022, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 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 LLCApr 26, 2022 |
- 10,400
- total depth, ft
- 2
- permits on file
- Apr 26, 2022
- last permit issued
- Apr 18, 2023
- completed
- 512K
- cumulative oil, bbl
- 1.72M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2022 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 18, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.194514, -101.889885
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Martin 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Winston 31-43 E O-10-58224 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 512K | 1.72M | Sep 2022 – Jul 2026 |
Oil, barrels lease total
Last 12 months 39,159 · prior 12 74,356(-47%)
Gas, mcf lease total
Last 12 months 308,608 · prior 12 545,543(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 878203-98 | Drill | Diamondback E&P LLC | Aug 7, 2023 | Apr 26, 2022 | Jul 5, 2022 | 10,400 |
| 878203-99 | Drill | Diamondback E&P LLC | Mar 18, 2022 | Apr 26, 2022 | Jul 5, 2022 | 10,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-58224 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,802 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,135 | 1,667 |
| Yates | 2,522 | 280 |
| Queen | 3,015 | -213 |
| Grayburg | 3,597 | -795 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,230 | -1,428 |
| Spraberry | 7,412 | -4,610 |
| Dean | 8,706 | -5,904 |
| Wolfcamp | 8,923 | -6,121 |
| Cisco | — | — |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,723 | 22,702 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,989 | 17.5 | 1,850 S |
| 10.75 | 5,300 | 12.25 | 835 S |
| 5.5 | 22,794 | 7.875 | 2,790 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 | Sep 15, 2023 | Jul 17, 2023 | Yes |
| 00 | Mar 3, 2023 | Jan 12, 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 42-317-44221 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-44221 → 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.
Winston 31-43 C42-317-44217
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,134 | 1,668 |
| Yates | 2,521 | 281 |
| Queen | 3,014 | -212 |
| Grayburg | 3,596 | -794 |
| San Andres | 4,229 | -1,427 |
| Clear Fork | 6,260 | -3,458 |
| Spraberry | 7,412 | -4,610 |
| Cisco | — |
11 TOPS · FIRST 8
Winston 31-43 E42-317-44220
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,135 | 1,667 |
| Yates | 2,522 | 280 |
| Queen | 3,015 | -213 |
| Grayburg | 3,597 | -795 |
| San Andres | 4,230 | -1,428 |
| Clear Fork | 6,262 | -3,460 |
| Spraberry | 7,412 | -4,610 |
| Dean | 8,706 | -5,904 |
12 TOPS · FIRST 8
Winston 31-43 C42-317-44218
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,537 | 264 |
| Queen | 3,209 | -408 |
| Grayburg | 3,598 | -797 |
| San Andres | 4,080 | -1,279 |
| Clear Fork | 6,296 | -3,495 |
| Spraberry | 7,430 | -4,629 |
| Pennsylvanian | — | |
| Cisco | — |
11 TOPS · FIRST 8
Winston 31-43 G42-317-44222
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,135 | 1,667 |
| Yates | 2,522 | 280 |
| Queen | 3,015 | -213 |
| Grayburg | 3,597 | -795 |
| San Andres | 4,230 | -1,428 |
| Clear Fork | 6,262 | -3,460 |
| Spraberry | 7,412 | -4,610 |
| Dean | 8,706 | -5,904 |
10 TOPS · FIRST 8
Winston 31-43 D42-317-44219
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,134 | 1,668 |
| Yates | 2,521 | 281 |
| Queen | 3,014 | -212 |
| Grayburg | 3,596 | -794 |
| San Andres | 4,229 | -1,427 |
| Clear Fork | 6,260 | -3,458 |
| Spraberry | 7,412 | -4,610 |
| Pennsylvanian | — |
11 TOPS · FIRST 8
Winston 31-43 A42-317-43767
0.1 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,134 | 1,668 |
| Yates | 2,521 | 281 |
| Queen | 3,014 | -212 |
| Grayburg | 3,596 | -794 |
| San Andres | 4,229 | -1,427 |
| Clear Fork | 6,260 | -3,458 |
| Spraberry | 7,412 | -4,610 |
| Cisco | — |
14 TOPS · FIRST 8
Loomis 31-43 B42-317-43770
0.1 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,516 | 282 |
| Queen | 3,228 | -430 |
| Grayburg | 3,571 | -773 |
| San Andres | 3,865 | -1,067 |
| Clear Fork | 6,266 | -3,468 |
| Spraberry | 7,395 | -4,597 |
| Cisco | — | |
| Santa Rosa | — |
11 TOPS · FIRST 8
Loomis 31-43 D42-317-43772
0.1 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 727 | 2,071 |
| Yates | 2,506 | 292 |
| Queen | 3,261 | -463 |
| Grayburg | 3,561 | -763 |
| San Andres | 3,865 | -1,067 |
| Clear Fork | 6,257 | -3,459 |
| Spraberry | 7,408 | -4,610 |
| Dean | 8,715 | -5,917 |
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/31744221, documented in the API reference.