TEXAS · WELLS · ANDREWS COUNTY · ULS BB 4-3 LEASE · API 42-003-41565 · DISTRICT 7B

Uls BB 4-3 #1

Y

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

Uls BB 4-3 #1 (API 42-003-41565) is a well in Andrews County operated by Sabalo II Operating LLC, completed June 17, 2010 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 31, 2010, permitted to 11,220 ft.

It was permitted by Devon Energy Production CO, L.P. and has since transferred to Sabalo II Operating LLC on the wellbore schedule.

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

Its lease has reported 43.5K barrels of oil and 42.8K mcf of gas since June 2010, last reporting in July 2026.

Operator of record

Sabalo II Operating LLC

Permitted by Devon Energy Production Co, L.P.; 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 permitDevon Energy Production Co, L.P.Mar 31, 2010

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

11,220
total depth, ft
2
permits on file
Mar 31, 2010
last permit issued
Jun 17, 2010
completed
43.5K
cumulative oil, bbl
42.8K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 17, 2010
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Uls BB 4-3 O-10-40901Spraberry (Trend Area)Sabalo II Operating, LLC143.5K42.8KJun 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 1,106 · prior 12 1,343(-18%)

0100200202420252026

Gas, mcf lease total

Last 12 months 901 · prior 12 805(+12%)

050100150202420252026

Chain of custody

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

  1. 1Devon Energy Production Co, L.P.Jun 2010 → Aug 2016
  2. 2Pioneer Natural Res. USA, Inc.Sep 2016 → Jan 2017
  3. 3Zarvona Energy LLCFeb 2017 → Sep 2025
  4. 4Sabalo II Operating, LLCOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
693732-98DrillDevon Energy Production Co, L.P.Sep 21, 2010Mar 31, 2010Apr 28, 201011,400
693732-99DrillDevon Energy Production Co, L.P.Mar 30, 2010Mar 31, 2010—11,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 17, 2010Uls BB 4-3 O-10-40901Spraberry (Trend Area)Sabalo II Operating LLCProducing11,220

Formation tops

As filed on W-2/G-1. Subsea from 3,098 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry8,590-5,492
Wolfcamp9,824-6,726
Strawn10,721-7,623

Perforations

Perforated and open-hole intervals.

FromToType
8,59010,897Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.7535517.5535 S
8.6254,960111,190 S
5.511,2207.875935 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
00Nov 1, 2011Mar 10, 2011Yes

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/00341565, documented in the API reference.