WELL · 42-003-42672 · DISTRICT 8

Big Max 25 NW #6

Y

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

Big Max 25 NW #6 (API 42-003-42672) is a well in Andrews County operated by Sabalo II Operating LLC, completed June 6, 2011 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 18, 2011, permitted to 11,200 ft.

It was permitted by Windsor Permian LLC and has since transferred to Sabalo II Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.

Its lease has reported 131K barrels of oil and 121K mcf of gas since June 2011, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Sabalo II Operating LLC

Permitted by Windsor Permian LLC; 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 permitWindsor Permian LLCFeb 18, 2011

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

11,200
total depth, ft
1
permits on file
Feb 18, 2011
last permit issued
Jun 6, 2011
completed
131K
cumulative oil, bbl
121K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 6, 2011
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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Big Max 25 NW O-10-41740Spraberry (Trend Area)Sabalo II Operating, LLC2131K121KJun 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 4,833 · prior 12 4,258(+14%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 3,953 · prior 12 3,522(+12%)

05001K202420252026

Chain of custody

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

  1. 1Windsor Permian LLCJun 2011 → Jun 2012
  2. 2Diamondback E&P LLCJul 2012 → Sep 2024
  3. 3Sabalo II Operating, LLCOct 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
710465-99DrillWindsor Permian LLCFeb 16, 2011Feb 18, 2011Mar 24, 201111,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-41740————

Formation tops

As filed on W-2/G-1. Subsea from 3,086 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry8,550-5,464
Dean9,125-6,039
Wolfcamp9,225-6,139
Strawn10,950-7,864

Perforations

Perforated and open-hole intervals.

FromToType
8,14011,129Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,74817.51,300 S
8.6255,22512.25700 S
5.511,2507.8751,300 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
00Sep 5, 2012Sep 28, 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/00342672, documented in the API reference.