WELL · 42-317-43797 · DISTRICT 8

Alldale 136-321 C #4JM

Y

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

Alldale 136-321 C #4JM (API 42-317-43797) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed November 15, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 18, 2021, permitted to 8,980 ft.

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

Its lease has reported 360K barrels of oil and 660K mcf of gas since November 2021, 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 LLCOct 18, 2021
8,980
total depth, ft
2
permits on file
Oct 18, 2021
last permit issued
Nov 15, 2022
completed
360K
cumulative oil, bbl
660K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2021 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 15, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.316328, -102.047146

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
Alldale 136-321 C O-10-57456Spraberry (Trend Area)Diamondback E&P LLC1360K660KNov 2021 – Jul 2026

Oil, barrels lease total

Last 12 months 25,041 · prior 12 49,373(-49%)

010K20K202420252026

Gas, mcf lease total

Last 12 months 32,634 · prior 12 154,892(-79%)

020K40K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCNov 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
872811-98DrillDiamondback E&P LLCFeb 28, 2023Oct 18, 2021Aug 30, 20228,980
872811-99DrillDiamondback E&P LLCSep 15, 2021Oct 18, 2021—8,980

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-57456————

Formation tops

As filed on W-2/G-1. Subsea from 2,840 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,869-29
Queen3,808-968
Grayburg3,964-1,124
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,446-1,606
Clear ForkCLEARFORK6,564-3,724
Spraberry7,964-5,124
Cisco——
Dean——
Santa Rosa——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,14422,546Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.751,97614.751,270 S
8.6256,593111,285 S
5.522,6177.8752,655 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 4, 2023Jan 31, 2023Yes
00Sep 15, 2022Jun 7, 2022Yes

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 →

Alldale 136-321 E42-317-43799

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

Yates2,880-70
Queen3,815-1,005
Grayburg3,973-1,163
San Andres4,450-1,640
Clear Fork6,582-3,772
Spraberry7,975-5,165
Cisco—
Wolfcamp—

11 TOPS · FIRST 8

Alldale 136-321 A42-317-43785

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

Yates2,888-48
Queen3,821-981
Grayburg3,974-1,134
San Andres4,462-1,622
Clear Fork6,584-3,744
Spraberry7,978-5,138
Dean—
Cisco—

10 TOPS · FIRST 8

Alldale 136-321 G42-317-43801

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

Yates2,868-28
Queen3,842-1,002
Grayburg3,987-1,147
San Andres4,426-1,586
Clear Fork6,584-3,744
Spraberry7,978-5,138
Dean9,265-6,425
Wolfcamp9,516-6,676

11 TOPS · FIRST 8

Alldale 136-321 D42-317-43798

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

Santa Rosa1,3421,498
Yates2,867-27
Queen3,813-973
Grayburg3,961-1,121
San Andres4,435-1,595
Clear Fork6,568-3,728
Spraberry7,970-5,130
Strawn—

12 TOPS · FIRST 8

Alldale 136-321 B42-317-43796

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

Yates2,867-27
Queen3,818-978
Grayburg3,965-1,125
San Andres4,437-1,597
Clear Fork6,579-3,739
Spraberry7,971-5,131
Pennsylvanian—
Santa Rosa—

11 TOPS · FIRST 8

Alldale 136-321 F42-317-43800

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

Yates2,864-24
Queen3,811-971
Grayburg3,955-1,115
San Andres4,439-1,599
Clear Fork6,577-3,737
Spraberry7,971-5,131
Santa Rosa—
Wolfcamp—

10 TOPS · FIRST 8

Fearless 136-137 A42-317-43109

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

Yates2,863-25
Grayburg3,992-1,154
San Andres4,461-1,623
Clear Fork6,573-3,735
Spraberry7,970-5,132
Dean9,270-6,432
Wolfcamp9,512-6,674
Cisco—

10 TOPS · FIRST 8

Alldale SN42-317-41991

0.5 KM · Energen Resources Corporation · Section with this well →

Santa Rosa1,3631,472
Yates2,867-32
Queen3,774-939
Grayburg3,877-1,042
San Andres4,427-1,592
Spraberry7,957-5,122
Dean9,260-6,425
Wolfcamp9,752-6,917

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

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