WELL · 42-003-47832 · DISTRICT 8

UL Tawny Unit 8-12 #8LS

Y

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

UL Tawny Unit 8-12 #8LS (API 42-003-47832) is a horizontal well in Andrews County operated by Diamondback E&P LLC, completed September 20, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 31, 2018, permitted to 10,600 ft.

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

Its lease has reported 3.2M barrels of oil and 3.69M mcf of gas since November 2014, last reporting in July 2026. The lease carries 9 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 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 LLCDec 31, 2018
10,600
total depth, ft
1
permits on file
Dec 31, 2018
last permit issued
Sep 20, 2021
completed
3.2M
cumulative oil, bbl
3.69M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 20, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.397728, -102.294260

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Andrews 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; they carry 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
UL Tawny Unit 8-12 O-10-45939Spraberry (Trend Area)Diamondback E&P LLC93.2M3.69MNov 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 139,927 · prior 12 115,954(+21%)

010K20K202420252026

Gas, mcf lease total

Last 12 months 221,330 · prior 12 173,323(+28%)

010K20K30K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCNov 2014 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
840657-99DrillDiamondback E&P LLCMay 30, 2018Dec 31, 2018Jul 3, 201910,600

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-45939————

Formation tops

As filed on W-2/G-1. Subsea from 3,006 ft elevation.Download CSV →

FormationMD ftSubsea
Yates3,163-157
Seven Rivers3,408-402
Queen3,841-835
Grayburg4,280-1,274
San Andres4,968-1,962
San AndresSAN ANDRES - CO2 FLOOD, HIGH FLO4,968-1,962
Glorieta5,764-2,758
GlorietaGLORIETTA5,764-2,758
Clear ForkCLEARFORK6,950-3,944
Holt——
Permian (undifferentiated)PERMIAN DETRITAL——
Queen——
Seven Rivers——
Tubb——
Yates——

Perforations

Perforated and open-hole intervals.

FromToType
10,31617,981Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,83217.51,430 S
9.6257,25012.251,830 S
5.518,0738.52,805 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
00Dec 7, 2021Oct 28, 2021Yes
00Jun 16, 2020Mar 10, 2020Yes

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 Tawny Unit 8-1242-003-47833

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

Yates3,163-157
Seven Rivers3,408-402
Queen3,841-835
Grayburg4,280-1,274
San Andres4,968-1,962
Glorieta5,764-2,758
Clear Fork6,950-3,944
Tubb—

10 TOPS · FIRST 8

UL Tawny Unit 8-1242-003-47835

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

Yates3,163-157
Seven Rivers3,408-402
Queen3,841-835
Grayburg4,280-1,274
San Andres4,968-1,962
Glorieta5,764-2,758
Clear Fork6,950-3,944
Holt—

10 TOPS · FIRST 8

UL Sitka 12-1 S42-003-48723

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

Yates3,186-179
Seven Rivers3,437-430
Queen3,870-863
Grayburg4,561-1,554
San Andres4,997-1,990
Glorieta5,946-2,939
Clear Fork6,979-3,972
Permian (undifferentiated)—

10 TOPS · FIRST 8

UL Sitka 12-1 R42-003-48724

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

Grayburg3,109-102
Yates3,185-178
San Andres5,001-1,994
Clear Fork6,979-3,972
Permian (undifferentiated)—
Queen—
Glorieta—
Seven Rivers—

10 TOPS · FIRST 8

UL Sitka 12-1 M42-003-48721

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

Yates3,194-188
Seven Rivers3,439-433
Queen3,872-866
Grayburg4,563-1,557
San Andres4,999-1,993
Glorieta5,948-2,942
Clear Fork6,976-3,970
Holt—

10 TOPS · FIRST 8

UL Sitka 12-1 P42-003-48720

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

Yates3,184-178
Seven Rivers3,426-420
Queen3,856-850
Grayburg4,557-1,551
San Andres4,992-1,986
Glorieta5,940-2,934
Clear Fork6,959-3,953
Holt—

10 TOPS · FIRST 8

UL Tawny Unit 8-1242-003-47765

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

Yates3,160-168
Seven Rivers3,409-417
Queen3,841-849
Grayburg4,279-1,287
San Andres4,807-1,815
Holt5,670-2,678
Glorieta5,783-2,791
Clear Fork6,953-3,961

10 TOPS · FIRST 8

UL Tawny Unit 8-1242-003-47766

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

Yates3,159-167
Seven Rivers3,406-414
Queen3,840-848
Grayburg4,271-1,279
San Andres4,796-1,804
Holt5,645-2,653
Glorieta5,760-2,768
Clear Fork6,945-3,953

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/00347832, documented in the API reference.