TEXAS · WELLS · MIDLAND COUNTY · ERWIN -G- LEASE · API 42-329-36881 · DISTRICT 7B
Erwin -G- #12
Midland County · Spraberry (Trend Area) field · Vertical
Erwin -G- #12 (API 42-329-36881) is a plugged well in Midland County, plugged November 3, 2025, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued December 2, 2010, permitted to 10,750 ft.
Completion filings report 7 formation tops, including Top Upper Spby, Upper Spby, Lower Spby, Top Lower Spby.
Its lease has reported 369K barrels of oil and 511K mcf of gas since January 1993, last reporting in July 2026. The lease carries 10 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
- 15,628
- 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.Dec 2, 2010 |
- 10,750
- total depth, ft
- 1
- permits on file
- Dec 2, 2010
- last permit issued
- Jul 9, 2011
- completed
- 369K
- cumulative oil, bbl
- 511K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 9, 2011
- Shut in
- —
- Plugged
- Nov 3, 2025
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 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Erwin -G- O-10-22421 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 10 | 369K | 511K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 848 · prior 12 4,340(-80%)
Gas, mcf lease total
Last 12 months 896 · prior 12 4,707(-81%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Brown, Tom Inc.Jan 1993 → Dec 2003
- 2Pioneer Natural Res. USA, Inc.Jan 2004 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 704844-99 | Drill | Pioneer Natural Res. USA, Inc. | Nov 4, 2010 | Dec 2, 2010 | Feb 25, 2011 | 10,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 9, 2011 | Erwin -G- O-10-22421 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,630 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,036 | 8,386 | Perforated |
| 7,036 | 10,023 | Perforated |
| 8,468 | 8,536 | Perforated |
| 8,592 | 10,023 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 322 | 11 | 175 S |
| 4.5 | 10,355 | 7.875 | 690 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 26, 2013 | Oct 25, 2012 | — |
| 00 | Jul 30, 2012 | Aug 24, 2011 | 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 42-329-36881 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-36881 → 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.
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/32936881, documented in the API reference.