TEXAS · WELLS · UPTON COUNTY · PEMBROOK UNIT LEASE · API 42-461-39598 · DISTRICT 6E
Pembrook Unit #4D
Upton County · Spraberry (Trend Area) field · Vertical
Pembrook Unit #4D (API 42-461-39598) is a plugged well in Upton County, plugged March 2, 2017, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued July 16, 2014, permitted to 5,400 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Devonian.
Its lease has reported 21.3M barrels of oil and 41.5M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 333 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.Jul 16, 2014 |
- 5,400
- total depth, ft
- 1
- permits on file
- Jul 16, 2014
- last permit issued
- Sep 17, 2014
- completed
- 21.3M
- cumulative oil, bbl
- 41.5M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 17, 2014
- Shut in
- —
- Plugged
- Mar 2, 2017
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 333 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pembrook Unit O-9-4088 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 333 | 21.3M | 41.5M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 1,411,130 · prior 12 756,213(+87%)
Gas, mcf lease total
Last 12 months 3,512,715 · prior 12 2,929,097(+20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Jul 2005
- 3Pioneer Natural Res. USA, Inc.Aug 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 789465-99 | Drill | Pioneer Natural Res. USA, Inc. | Jun 13, 2014 | Jul 16, 2014 | Sep 13, 2014 | 5,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 17, 2014 | Pembrook Unit O-9-4088 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,694 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,340 | 354 |
| Grayburg | 3,946 | -1,252 |
| San AndresSAN ANDRES - SALTWATER FLOW | 3,988 | -1,294 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Spraberry | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,201 | 4,686 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 410 | 12.25 | 400 S |
| 7 | 4,930 | 8.75 | 600 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 10, 2015 | Feb 13, 2015 | Yes |
Well logs
2 logs loaded from the RRC's log index, the latest received Aug 14, 2017. Gamma ray, 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 |
|---|---|---|---|---|
| Gamma RaySpans Yates, Grayburg, San Andres | TIFF | 0 to 4,846 | Aug 14, 2017 | 9.75 |
| NEUTRON POROSITYSpans Yates, Grayburg, San Andres | TIFF | 0 to 4,848 | Jul 13, 2015run Sep 23, 2014 | 5.04 |
"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 42-461-39598 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39598 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Nov 2017
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000110356 | W-14 Disposal | Plugged Mar 23, 2017 | 18,000 | 1,950 | 3,900–4,750 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/46139598, documented in the API reference.