TEXAS · WELLS · REAGAN COUNTY · SOUTH STILES SPRABERRY UNIT LEASE · API 42-383-35746 · DISTRICT 6E

South Stiles Spraberry Unit #1136

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

South Stiles Spraberry Unit #1136 (API 42-383-35746) is a well in Reagan County operated by Prime Operating Company, completed July 1, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 29, 2006, permitted to 8,360 ft.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its lease has reported 1.87M barrels of oil and 8.35M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 50 wells, so these are lease totals, not this well alone.

Operator of record

Prime Operating Company

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
Jan 29, 2026
Permits on file
595
Phone
(432) 682-5600

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePrime Operating Company
Production reportsPrime Operating Companythrough Apr 2026
Latest permitPrime Operating CompanyMar 29, 2006
8,360
total depth, ft
2
permits on file
Mar 29, 2006
last permit issued
Jul 1, 2008
completed
1.87M
cumulative oil, bbl
8.35M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 1, 2008
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.

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 50 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
South Stiles Spraberry Unit O-9-6162Spraberry (Trend Area)Prime Operating Company501.87M8.35MJan 1993 – Apr 2026

Oil, barrels lease total

Last 12 months 23,310 · prior 12 45,846(-49%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 55,538 · prior 12 82,760(-33%)

010K20K202420252026

Chain of custody

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

  1. 1BTA Oil ProducersJan 1993 → Jan 2008
  2. 2BTA Oil Producers, LLCFeb 2008 → May 2023
  3. 3De IV Operating, LLCJun 2023 → Jun 2023
  4. 4Prime Operating CompanyJul 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
615845-98DrillPrime Operating CompanyAug 24, 2006Mar 29, 2006Sep 18, 20069,000
615845-99DrillPrime Operating CompanyMar 14, 2006Mar 29, 2006Sep 18, 20069,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 1, 2008South Stiles Spraberry Unit O-9-6162Spraberry (Trend Area)Prime Operating CompanyProducing8,360

Formation tops

As filed on W-2/G-1. Subsea from 2,566 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY5,924-3,358
SpraberryUPPER SPRABERRY5,951-3,385
SpraberryLOWER SPRABERRY6,456-3,890
SpraberryLOWER SPRABERRY6,508-3,942
Dean7,358-4,792
Dean7,401-4,835
WolfcampUPPER WOLFCAMP7,538-4,972
WolfcampLOWER WOLFCAMP7,622-5,056
Wolfcamp7,675-5,109

Perforations

Perforated and open-hole intervals.

FromToType
5,9516,106Perforated
6,5466,979Perforated
7,4017,562Perforated
7,6758,350Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62550712.25450 S
4.58,3557.8751,250 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
00Dec 6, 2008Oct 20, 2008—
00Mar 27, 2007Nov 22, 2006Yes
00Nov 29, 2006——

Well logs

1 log loaded from the RRC's log index, the latest received Oct 12, 2009. Resistivity. 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
RESISTIVITYSpans Spraberry, Dean, WolfcampTIFF4,000 to 8,355Oct 12, 2009run Oct 12, 200616.5

"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/38335746, documented in the API reference.