TEXAS · WELLS · REAGAN COUNTY · SAU 28-4 LEASE · API 42-383-38910 · DISTRICT 6E

Sau 28-4 #4D

On schedule

Reagan County · Spraberry (Trend Area) field · Producing  · Vertical

Sau 28-4 #4D (API 42-383-38910) is a well in Reagan County operated by Apache Corporation, completed December 5, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 1, 2014, permitted to 8,396 ft.

Completion filings report 8 formation tops, including Queen, Grayburg, San Andres, Clear Fork.

Its lease has reported 151K barrels of oil and 797K mcf of gas since April 1997, last reporting volume in August 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

Apache Corporation

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 scheduleApache Corporation
Production reportsApache Corporationthrough Aug 2026
Latest permitApache CorporationAug 1, 2014
8,396
total depth, ft
1
permits on file
Aug 1, 2014
last permit issued
Dec 5, 2014
completed
151K
cumulative oil, bbl
797K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · APR 1997 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 5, 2014
Shut in
—
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.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Sau 28-4 O-9-14552Spraberry (Trend Area)Apache Corporation3151K797KApr 1997 – Aug 2026

Oil, barrels lease total

Last 12 months 53 · prior 12 814(-93%)

0100200202420252026

Gas, mcf lease total

Last 12 months 3,751 · prior 12 1,819(+106%)

0200400600202420252026

Wells named Sau 28-4

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 wells

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Mariner Energy, Inc.Apr 1997 → Nov 2010
  2. 2Apache CorporationDec 2010 → Jul 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
787140-99DrillApache CorporationMay 14, 2014Aug 1, 2014Oct 18, 20148,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 5, 2014Sau 28-4 O-9-14552Spraberry (Trend Area)Apache CorporationProducing8,396

Formation tops

As filed on W-2/G-1. Subsea from 2,660 ft elevation.Download CSV →

FormationMD ftSubsea
Queen2,833-173
Grayburg3,507-847
San AndresSAN ANDRES - SALTWATER FLOW, POS3,725-1,065
Clear ForkCLEARFORK4,581-1,921
Spraberry6,518-3,858
Ellenburger——
Fusselman——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
6,7788,084Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37550217.5480 S
8.6254,572111,010 S
5.58,3967.875880 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Feb 27, 2015Jan 8, 2015Yes

Well logs

1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Sep 22, 2017. Density. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
DensitySpans Queen, Grayburg, San Andres, Clear Fork, SpraberryLAS + TIFF200 to 8,292Sep 22, 20174.45 + 7.97

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/38338910, documented in the API reference.