TEXAS · WELLS · GLASSCOCK COUNTY · BRUNSON "18" LEASE · API 42-173-36488 · DISTRICT 7B
Brunson 18 #4
Glasscock County · Spraberry (Trend Area) field · Shut In · Vertical
Brunson 18 #4 (API 42-173-36488) is a well in Glasscock County operated by Pioneer Natural Res. USA Inc., completed November 6, 2023 and listed as shut in on the RRC schedule, shut in October 1, 2023.
The RRC has issued one drilling permit (amended once), issued April 26, 2014, permitted to 10,627 ft.
Completion filings report 12 formation tops, including Santa Rosa, Seven Rivers, Queen, Yates.
Its lease has reported 131K barrels of oil and 338K mcf of gas since January 2012, last reporting volume in April 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,633
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Apr 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Apr 26, 2014 |
- 10,627
- total depth, ft
- 2
- permits on file
- Apr 26, 2014
- last permit issued
- Nov 6, 2023
- completed
- 131K
- cumulative oil, bbl
- 338K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 6, 2023
- Shut in
- Oct 1, 2023
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
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 |
|---|---|---|---|---|---|---|
| Brunson "18" O-10-42638 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 3 | 131K | 338K | Jan 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 1,201 · prior 12 2,988(-60%)
Gas, mcf lease total
Last 12 months 1,573 · prior 12 3,484(-55%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Feb 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 782607-98 | Drill | Pioneer Natural Res. USA, Inc. | May 22, 2014 | Apr 26, 2014 | Aug 29, 2014 | 11,100 |
| 782607-99 | Drill | Pioneer Natural Res. USA, Inc. | Mar 19, 2014 | Apr 26, 2014 | — | 11,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 6, 2023 | Brunson 18 O-10-42638 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Shut In · shut in Oct 1, 2023 | 10,627 |
Formation tops
As filed on W-2/G-1. Subsea from 2,543 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,543 |
| Seven Rivers | 1,300 | 1,243 |
| Queen | 1,500 | 1,043 |
| Yates | 2,036 | 507 |
| Glorieta | 2,450 | 93 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,669 | -1,126 |
| Grayburg | 3,671 | -1,128 |
| Clear ForkCLEARFORK | 5,660 | -3,117 |
| Spraberry | 6,599 | -4,056 |
| Mississippian | 10,491 | -7,948 |
| Clear ForkCLEARFORK | — | — |
| Glorieta | — | — |
| Grayburg | — | — |
| Queen | — | — |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | — | — |
| Santa Rosa | — | — |
| Seven River | — | — |
| Spraberry | — | — |
| Witchita Albany | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,924 | 10,482 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 416 | 17.5 | 460 S |
| 8.625 | 5,310 | 11 | 870 S |
| 5.5 | 10,627 | 7.875 | 1,020 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 6, 2024 | Jan 8, 2024 | — |
| 00 | Mar 26, 2015 | Feb 3, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received May 12, 2015. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Santa Rosa, Seven Rivers, Queen, Yates, Glorieta, San Andres, Grayburg, Clear Fork, Spraberry, Mississippian | TIFF | 0 to 10,618 | May 12, 2015run Sep 17, 2014 | 9.16 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-173-36488 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-36488 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/17336488, documented in the API reference.