WELL · 42-317-44333 · DISTRICT 8

UL Stanolind 30-27 B #1MS

Y

Martin County · Spraberry (Trend Area) field · Producing  · Horizontal

UL Stanolind 30-27 B #1MS (API 42-317-44333) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed September 19, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued June 9, 2022, permitted to 13,000 ft.

Completion filings report 10 formation tops, including Yates, Queen, Grayburg, San Andres.

Its lease has reported 122K barrels of oil and 204K mcf of gas since May 2023, last reporting in July 2026.

Operator of record

Diamondback E&P LLC

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitDiamondback E&P LLCJun 9, 2022
13,000
total depth, ft
2
permits on file
Jun 9, 2022
last permit issued
Sep 19, 2023
completed
122K
cumulative oil, bbl
204K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 19, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.470929, -102.208290

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Martin County.

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
UL Stanolind 30-27 B O-10-59624Spraberry (Trend Area)Diamondback E&P LLC1122K204KMay 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 32,424 · prior 12 34,389(-6%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 99,500 · prior 12 57,908(+72%)

05K10K15K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCSep 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
879597-98DrillDiamondback E&P LLCAug 4, 2022Jun 9, 2022Jan 19, 202313,000
879597-99DrillDiamondback E&P LLCApr 28, 2022Jun 9, 2022Jan 21, 202313,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-59624————

Formation tops

As filed on W-2/G-1. Subsea from 2,923 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,987-64
Queen3,613-690
Grayburg4,098-1,175
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,474-1,551
Clear ForkCLEARFORK6,402-3,479
Spraberry8,238-5,315
Cisco——
Dean——
Santa Rosa——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,13518,092Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,84014.751,070 S
8.6255,918111,055 S
5.518,1587.8752,080 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
00Apr 19, 2024Feb 20, 2024Yes
00Sep 25, 2023Aug 15, 2023—

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

UL Stanolind 30-27 A42-317-44332

0.0 KM · Diamondback E&P LLC · Section with this well →

Yates2,990-68
Queen3,604-682
Grayburg4,091-1,169
San Andres4,482-1,560
Spraberry8,253-5,331
Dean—
Wolfcamp—
Santa Rosa—

10 TOPS · FIRST 8

UL Stanolind 30-27 C42-317-44334

0.0 KM · Diamondback E&P LLC · Section with this well →

Yates2,996-74
Queen3,649-727
Grayburg4,088-1,166
San Andres4,483-1,561
Clear Fork6,398-3,476
Spraberry8,253-5,331
Dean9,474-6,552
Wolfcamp9,649-6,727

11 TOPS · FIRST 8

UL Keswick 30-27 A42-317-44608

0.0 KM · Diamondback E&P LLC · Section with this well →

Yates2,987-66
Queen3,645-724
Grayburg4,082-1,161
San Andres4,506-1,585
Clear Fork6,407-3,486
Spraberry8,225-5,304
Santa Rosa—
Wolfcamp—

10 TOPS · FIRST 8

UL Keswick 30-27 B42-317-44610

0.0 KM · Diamondback E&P LLC · Section with this well →

Yates2,980-59
Queen3,661-740
Grayburg4,084-1,163
San Andres4,505-1,584
Clear Fork6,425-3,504
Spraberry8,240-5,319
Dean—
Cisco—

10 TOPS · FIRST 8

UL Keswick 30-27 C42-317-44794

0.0 KM · Diamondback E&P LLC · Section with this well →

Yates2,978-58
Queen3,654-734
Grayburg4,098-1,178
San Andres4,527-1,607
Clear Fork6,402-3,482
Spraberry8,238-5,318
Dean9,481-6,561
Wolfcamp9,638-6,718

10 TOPS · FIRST 8

M.A.K. (Spraberry) Unit42-317-31414

0.1 KM · Diamondback E&P LLC · Section with this well →

Rustler1,970955
Yates2,980-55
San Andres4,680-1,755
Clear Fork6,375-3,450
Clfk6,375-3,450
Spraberry8,516-5,591
Sprby8,516-5,591

UL Audible 30-44 D42-317-43335

0.4 KM · Diamondback E&P LLC · Section with this well →

Santa Rosa9911,934
Yates2,986-61
Queen3,653-728
Grayburg4,088-1,163
San Andres4,482-1,557
San Andres4,482-1,557
Clear Fork6,415-3,490
Spraberry8,253-5,328

12 TOPS · FIRST 8

UL Audible 30-44 E42-317-43291

0.4 KM · Diamondback E&P LLC · Section with this well →

Santa Rosa9911,934
Yates2,975-50
Queen3,651-726
Grayburg4,102-1,177
San Andres4,485-1,560
Clear Fork6,409-3,484
Spraberry8,256-5,331
Wolfcamp—

10 TOPS · FIRST 8

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/31744333, documented in the API reference.