TEXAS · WELLS · MARTIN COUNTY · MADISON "27" LEASE · API 42-317-38352 · DISTRICT 7B
Madison 27 #4
Martin County · Spraberry (Trend Area) field · Shut In · Vertical
Madison 27 #4 (API 42-317-38352) is a well in Martin County operated by Pioneer Natural Res. USA Inc., completed May 1, 2026 and listed as shut in on the RRC schedule, shut in May 1, 2025.
The RRC has issued one drilling permit, issued January 16, 2013, permitted to 11,542 ft.
It was permitted by Endeavor Energy Resources L.P. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Strawn, Mississippian.
Its lease has reported 279K barrels of oil and 483K mcf of gas since May 2002, last reporting volume in February 2025. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.
- 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 Feb 2025 |
| Latest permit | Endeavor Energy Resources L.P.Jan 16, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,542
- total depth, ft
- 1
- permits on file
- Jan 16, 2013
- last permit issued
- May 1, 2026
- completed
- 279K
- cumulative oil, bbl
- 483K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2002 THROUGH Feb 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 1, 2026
- Shut in
- May 1, 2025
- 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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Madison "27" O-10-36878 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 6 | 279K | 483K | May 2002 – Feb 2025 |
Oil, barrels lease total
Last 12 months 0 · prior 12 3,250(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 4,635(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.May 2002 → Feb 2022
- 2Fed Operating LLCMar 2022 → Sep 2022
- 3Pioneer Natural Res. USA, Inc.Oct 2022 → Dec 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 754172-99 | Drill | Endeavor Energy Resources L.P. | Jan 7, 2013 | Jan 16, 2013 | Jan 26, 2013 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 1, 2026 | Madison 27 O-10-36878 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Shut In · shut in May 1, 2025 | 11,542 |
Formation tops
As filed on W-2/G-1. Subsea from 2,845 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Spraberry | 7,450 | -4,605 |
| SpraberrySPRABERRY (TREND AREA) | 7,450 | -4,605 |
| Strawn | 10,550 | -7,705 |
| Mississippian | 10,870 | -8,025 |
| Mississippian | 10,875 | -8,030 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,226 | 11,370 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 329 | 17.5 | 315 S |
| 8.625 | 4,968 | 11 | 600 S |
| 5.5 | 11,542 | 7.875 | 1,275 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 | Sep 11, 2026 | Jul 15, 2026 | — |
| 00 | Mar 10, 2014 | Sep 16, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 16, 2016. 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, Strawn, Mississippian | TIFF | 5,000 to 11,490 | Feb 16, 2016run Feb 21, 2013 | 2.68 |
"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 42-317-38352 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-38352 → 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/31738352, documented in the API reference.