WELL · 42-329-41969 · DISTRICT 8
Willis 40B #5
Midland County · Spraberry (Trend Area) field · Vertical
Willis 40b #5 (API 42-329-41969) is a well in Midland County operated by Oxyrock Operating LLC, completed March 22, 2018.
The RRC has issued one drilling permit, issued September 13, 2017, permitted to 12,000 ft.
It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Grayburg, San Andres, Canyon.
Its 2 leases have reported 187K barrels of oil and 482K mcf of gas since March 2018, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Crownquest Operating, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 392 permits on file · (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Oxyrock Operating LLC |
| Production reports | Oxyrock Operating, LLCthrough Apr 2026 |
| Latest permit | Crownquest Operating, LLCSep 13, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- Sep 13, 2017
- last permit issued
- Mar 22, 2018
- completed
- 187K
- cumulative oil, bbl
- 482K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 22, 2018
- Shut in
- —
- Plugged
- —
Surface location
31.878283, -101.935301
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Midland County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Willis 40B O-10-51083 | Spraberry (Trend Area) | Oxyrock Operating, LLC | 4 | 187K | 481K | Mar 2018 – Jul 2026 |
| Willis 40C O-10-59314 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 158 | 381 | Jul 2023 – Jul 2026 |
Oil, barrels lease total
Last 12 months 18,176 · prior 12 25,425(-29%)
Gas, mcf lease total
Last 12 months 23,047 · prior 12 16,025(+44%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Crownquest Operating, LLCMar 2018 → Jul 2024
- 2Pioneer Natural Res. USA, Inc.Feb 2024 → Jan 2025
- 3Oxyrock Operating, LLCAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 830648-99 | Drill | Crownquest Operating, LLC | Sep 5, 2017 | Sep 13, 2017 | Dec 3, 2017 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-51083 | — | — | — | — |
| — | — O-10-59314 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,710 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,516 | 194 |
| Grayburg | 4,224 | -1,514 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,800 | -2,090 |
| CanyonCANYON-STRAWN | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
| Seven Rivers | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,983 | 10,714 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 368 | 17.5 | 350 S |
| 8.625 | 5,631 | 11 | 1,250 S |
| 5.5 | 10,890 | 7.875 | 1,500 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 | Aug 9, 2023 | Mar 1, 2019 | Yes |
| 00 | Jun 10, 2019 | Mar 1, 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 42-329-41969 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-41969 → 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.
Willis 40B42-329-42212
0.4 KM · Crownquest Operating, LLC · Section with this well →
| Yates | 2,524 | 188 |
| Grayburg | 4,206 | -1,494 |
| San Andres | 4,785 | -2,073 |
| Glorieta | 5,591 | -2,879 |
| Clear Fork | 6,580 | -3,868 |
| Spraberry | 7,417 | -4,705 |
| Spraberry | 8,790 | -6,078 |
| Santa Rosa | — |
10 TOPS · FIRST 8
Willis 40B42-329-42220
0.5 KM · Crownquest Operating, LLC · Section with this well →
| Yates | 2,508 | 189 |
| Grayburg | 4,199 | -1,502 |
| San Andres | 4,564 | -1,867 |
| Glorieta | 5,578 | -2,881 |
| Spraberry | 7,398 | -4,701 |
| Spraberry | 8,778 | -6,081 |
| Queen | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
Horton '40'42-329-42741
0.9 KM · Mid-States Operating Company · Section with this well →
| Santa Rosa | 1,000 | 1,697 |
| Yates | 2,496 | 201 |
| Seven Rivers | 2,828 | -131 |
| Queen | 3,585 | -888 |
| Grayburg | 4,185 | -1,488 |
| San Andres | 4,276 | -1,579 |
| Clear Fork | — | |
| Spraberry | — |
10 TOPS · FIRST 8
Willis 40B42-329-42216
1.0 KM · Crownquest Operating, LLC · Section with this well →
| Yates | 2,521 | 166 |
| Grayburg | 4,164 | -1,477 |
| San Andres | 4,742 | -2,055 |
| Glorieta | 5,571 | -2,884 |
| Clear Fork | 6,557 | -3,870 |
| Spraberry | 7,400 | -4,713 |
| Spraberry | 8,771 | -6,084 |
| Seven Rivers | — |
10 TOPS · FIRST 8
Donovan C42-329-42940
1.8 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,705 |
| Seven Rivers | 1,300 | 1,405 |
| Yates | 2,445 | 260 |
| Queen | 3,700 | -995 |
| Grayburg | 4,023 | -1,318 |
| San Andres | 4,300 | -1,595 |
| Glorieta | 5,517 | -2,812 |
| Clear Fork | 6,568 | -3,863 |
10 TOPS · FIRST 8
Donovan 2H42-329-46708
1.9 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 976 | 1,754 |
| Rustler | 1,569 | 1,161 |
| Yates | 2,520 | 210 |
| Seven Rivers | 2,802 | -72 |
| Queen | 3,506 | -776 |
| Grayburg | 4,068 | -1,338 |
| San Andres | 4,301 | -1,571 |
| Clear Fork | 6,608 | -3,878 |
10 TOPS · FIRST 8
Donovan 2I42-329-46709
1.9 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 976 | 1,754 |
| Rustler | 1,570 | 1,160 |
| Yates | 2,514 | 216 |
| Seven Rivers | 2,795 | -65 |
| Queen | 3,506 | -776 |
| Grayburg | 4,076 | -1,346 |
| San Andres | 4,299 | -1,569 |
| Clear Fork | 6,601 | -3,871 |
10 TOPS · FIRST 8
Donovan 2J42-329-46720
1.9 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 976 | 1,754 |
| Rustler | 1,574 | 1,156 |
| Yates | 2,519 | 211 |
| Seven Rivers | 2,802 | -72 |
| Queen | 3,506 | -776 |
| Grayburg | 4,040 | -1,310 |
| San Andres | 4,282 | -1,552 |
| Clear Fork | 6,612 | -3,882 |
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/32941969, documented in the API reference.