WELL · 42-003-45963 · DISTRICT 8

Orson 27 #4

Y

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

Orson 27 #4 (API 42-003-45963) is a well in Andrews County operated by Sabalo II Operating LLC, completed April 28, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued February 20, 2014, permitted to 11,700 ft.

It was permitted by Williams, Clayton Energy, Inc. and has since transferred to Sabalo II Operating LLC on the wellbore schedule.

Completion filings report 10 formation tops, including Yates, Seven Rivers, Queen, Grayburg.

Its lease has reported 189K barrels of oil and 435K mcf of gas since May 2010, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Sabalo II Operating LLC

Permitted by Williams, Clayton Energy, Inc.; the EWA schedule now lists a different operator.

Based in
Corpus Chrsti, TX
P-5 status
Active (A)
P-5 last filed
Feb 25, 2026
Permits on file
73
Phone
(361) 888-7708

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSabalo II Operating LLC
Production reportsSabalo II Operating, LLCthrough Apr 2026
Latest permitWilliams, Clayton Energy, Inc.Feb 20, 2014

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,700
total depth, ft
2
permits on file
Feb 20, 2014
last permit issued
Apr 28, 2014
completed
189K
cumulative oil, bbl
435K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 28, 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.

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Orson 27 O-10-40430Spraberry (Trend Area)Sabalo II Operating, LLC4189K435KMay 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 3,718 · prior 12 3,566(+4%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 12,451 · prior 12 15,846(-21%)

01K2K202420252026

Chain of custody

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

  1. 1Williams, Clayton Energy, Inc.May 2010 → Mar 2017
  2. 2NBL Permian LLCApr 2017 → Sep 2017
  3. 3Throne Petroleum Resources LLCOct 2017 → Aug 2021
  4. 4Montrose Operating LLCSep 2021 → May 2024
  5. 5Sabalo II Operating, LLCJun 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
778627-98DrillWilliams, Clayton Energy, Inc.Dec 5, 2014Feb 20, 2014Mar 26, 201411,700
778627-99DrillWilliams, Clayton Energy, Inc.Jan 31, 2014Feb 20, 2014Mar 26, 201411,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-40430————

Formation tops

As filed on W-2/G-1. Subsea from 3,078 ft elevation.Download CSV →

FormationMD ftSubsea
Yates3,364-286
Seven Rivers3,647-569
Queen4,781-1,703
Grayburg4,868-1,790
San AndresSAN ANDRES - CO2 FLOOD, HIGH FLO5,331-2,253
Glorieta6,120-3,042
Clear ForkCLEARFORK7,270-4,192
Leon7,592-4,514
Spraberry8,495-5,417
Dean9,051-5,973

Perforations

Perforated and open-hole intervals.

FromToType
9,45011,582Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,89012.25920 S
5.511,6937.8752,170 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 20, 2015Jul 30, 2014Yes

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their 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/00345963, documented in the API reference.