TEXAS · WELLS · REAGAN COUNTY · API 42-383-35397 · DISTRICT 6E
Sau 4-1 #1B
Reagan County · Spraberry (Trend Area) field · Shut In · Vertical
Sau 4-1 #1B (API 42-383-35397) is a well in Reagan County operated by Apache Corporation, completed June 27, 2004 and listed as shut in on the RRC schedule, shut in February 1, 2022.
The RRC has issued one drilling permit, issued February 18, 2004, permitted to 8,307 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 2 leases have reported 114K barrels of oil and 1.39M mcf of gas since April 2003, last reporting volume in December 2023. The leases carry 5 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 Dec 2023 |
| Latest permit | Mariner Energy, Inc.Feb 18, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,307
- total depth, ft
- 1
- permits on file
- Feb 18, 2004
- last permit issued
- Jun 27, 2004
- completed
- 114K
- cumulative oil, bbl
- 1.39M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · APR 2003 THROUGH DEC 2023
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 27, 2004
- Shut in
- Feb 1, 2022
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sau 4-1 O-9-15371 | Spraberry (Trend Area) | Apache Corporation | 4 | 92.1K | 1.15M | Apr 2003 – Dec 2023 |
| Sau Mariner 4-1B O-9-15541 | Spraberry (Trend Area) | Apache Corporation | 1 | 21.4K | 241K | Jun 2004 – Feb 2012 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Wells named Sau 4-1
Apache Corporation's other wells filed under this lease name in Reagan County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Mariner Energy, Inc.Apr 2003 → Nov 2010
- 2Apache CorporationDec 2010 → May 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 541074-99 | Drill | Mariner Energy, Inc. | Jan 22, 2004 | Feb 18, 2004 | Jun 9, 2004 | 8,350 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 27, 2004 | Sau 4-1 O-9-15371 | Spraberry (Trend Area) | Apache Corporation | Shut In · shut in Feb 1, 2022 | 8,307 |
| Jun 27, 2004 | Sau Mariner 4-1B O-9-15541 | Spraberry (Trend Area) | Apache Corporation | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,656 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,280 | 6,420 | Perforated |
| 6,842 | 7,248 | Perforated |
| 7,646 | 7,948 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 493 | 11 | 225 S |
| 4.5 | 8,305 | 7.875 | 1,210 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 17, 2012 | Jul 26, 2004 | Yes |
| 00 | Sep 15, 2004 | Jul 26, 2004 | Yes |
| 00 | Aug 5, 2004 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-383-35397 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-35397 → 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/38335397, documented in the API reference.