TEXAS · WELLS · REAGAN COUNTY · SAU 21-4 LEASE · API 42-383-34657 · DISTRICT 6E
Sau 21-4 #4
Reagan County · Spraberry (Trend Area) field · Shut In · Vertical
Sau 21-4 #4 (API 42-383-34657) is a well in Reagan County operated by Apache Corporation, completed March 26, 1997 and listed as shut in on the RRC schedule, shut in February 1, 2023.
The RRC has issued one drilling permit, issued November 26, 1996, permitted to 8,126 ft.
It was permitted by Mariner Energy, Inc. and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 2 formation tops, including Spraberry, Dean.
Its lease has reported 103K barrels of oil and 600K mcf of gas since April 1997, with no volume in the three years through April 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Mariner Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 9,758
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Jan 2023 |
| Latest permit | Mariner Energy, Inc.Nov 26, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,126
- total depth, ft
- 1
- permits on file
- Nov 26, 1996
- last permit issued
- Mar 26, 1997
- completed
- 103K
- cumulative oil, bbl
- 600K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 1997 THROUGH Jan 2023
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 26, 1997
- Shut in
- Feb 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 |
|---|---|---|---|---|---|---|
| Sau 21-4 O-9-14546 | Spraberry (Trend Area) | Apache Corporation | 3 | 103K | 600K | Apr 1997 – Jan 2023 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mariner Energy, Inc.Apr 1997 → Nov 2010
- 2Apache CorporationDec 2010 → Jan 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 455624-99 | Drill | Mariner Energy, Inc. | Nov 26, 1996 | Nov 26, 1996 | Feb 19, 1997 | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 26, 1997 | Sau 21-4 O-9-14546 | Spraberry (Trend Area) | Apache Corporation | Shut In · shut in Feb 1, 2023 | 8,126 |
Formation tops
As filed on W-2/G-1. Subsea from 2,670 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,526 | 6,736 | Perforated |
| 6,883 | 7,531 | Perforated |
| 7,645 | 8,039 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 481 | 12.25 | 325 S |
| 4.5 | 8,126 | 7.875 | 785 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 | Apr 29, 1997 | Apr 16, 1997 | Yes |
| 00 | Apr 24, 1997 | — | — |
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 42-383-34657 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-34657 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/38334657, documented in the API reference.