TEXAS · WELLS · UPTON COUNTY · API 42-461-35924 · DISTRICT 6E
Pembrook Unit #4010
Upton County · Spraberry (Trend Area) field · Vertical
Pembrook Unit #4010 (API 42-461-35924) is a plugged well in Upton County, plugged October 10, 2024, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued June 21, 2008, permitted to 10,850 ft.
Completion filings report 4 formation tops, including Spraberry, Top Upr Spraberry, Top Lwer Spraberry, Dean.
Its 2 leases have reported 64.9M barrels of oil and 192M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 753 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.Jun 21, 2008 |
- 10,850
- total depth, ft
- 1
- permits on file
- Jun 21, 2008
- last permit issued
- Jun 20, 2019
- completed
- 64.9M
- cumulative oil, bbl
- 192M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 20, 2019
- Shut in
- —
- Plugged
- Oct 10, 2024
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 2 leases this well is completed on; they carry 753 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 |
| XBC Giddings Estate O-9-16349 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 420 | 43.6M | 150M | Apr 2007 – Apr 2026 |
Gas, mcf lease total
Last 12 months 12,450,985 · prior 12 15,218,845(-18%)
Oil, barrels lease total
Last 12 months 2,290,860 · prior 12 1,998,291(+15%)
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 |
|---|---|---|---|---|---|---|
| 663495-99 | Drill | Pioneer Natural Res. USA, Inc. | Jun 2, 2008 | Jun 21, 2008 | Aug 14, 2008 | 10,850 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 20, 2019 | Pembrook Unit O-9-4088 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
| Aug 24, 2008 | XBC Giddings Estate O-9-16349 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,729 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,192 | 8,055 | Perforated |
| 8,659 | 8,710 | Perforated |
| 8,894 | 9,829 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 474 | 11 | 300 S |
| 4.5 | 10,275 | 7.875 | 1,050 S |
| 4.5 | 10,487 | 7.875 | 1,050 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 | Jul 29, 2019 | Jul 26, 2019 | — |
| 00 | Feb 22, 2010 | Nov 30, 2009 | — |
| 00 | Aug 19, 2009 | Dec 1, 2008 | Yes |
| 00 | Jan 24, 2009 | Dec 1, 2008 | Yes |
| 00 | Dec 12, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 6, 2009. 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 Spraberry, Top Upr Spraberry, Top Lwer Spraberry, Dean | TIFF | 4,258 to 10,428 | Feb 6, 2009run Aug 27, 2008 | 2.71 |
"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 42-461-35924 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-35924 → 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.
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/46135924, documented in the API reference.