WELL · 42-317-43109 · DISTRICT 8

Fearless 136-137 A #8WB

Y

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

Fearless 136-137 A #8WB (API 42-317-43109) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed April 5, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued July 13, 2020, permitted to 10,980 ft.

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

Its lease has reported 366K barrels of oil and 720K mcf of gas since September 2020, last reporting in July 2026.

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 LLCJul 13, 2020
10,980
total depth, ft
2
permits on file
Jul 13, 2020
last permit issued
Apr 5, 2021
completed
366K
cumulative oil, bbl
720K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2020 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 5, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.317041, -102.045598

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
Fearless 136-137 A O-10-55669Spraberry (Trend Area)Diamondback E&P LLC1366K720KSep 2020 – Jul 2026

Oil, barrels lease total

Last 12 months 26,979 · prior 12 34,346(-21%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 18,999 · prior 12 81,880(-77%)

05K10K15K202420252026

Chain of custody

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

  1. 1Diamondback E&P LLCApr 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
863829-98DrillDiamondback E&P LLCApr 19, 2021Jul 13, 2020Mar 17, 202110,980
863829-99DrillDiamondback E&P LLCJun 5, 2020Jul 13, 2020Aug 14, 202010,980

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-55669————

Formation tops

As filed on W-2/G-1. Subsea from 2,838 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,863-25
Grayburg3,992-1,154
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,461-1,623
Clear ForkCLEARFORK6,573-3,735
Spraberry7,970-5,132
Dean9,270-6,432
Wolfcamp9,512-6,674
Cisco——
Queen——
Santa Rosa——

Perforations

Perforated and open-hole intervals.

FromToType
10,08617,839Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,98617.51,650 S
5.57,7736.75720 S
7.6258,1559.875600 S
4.517,9266.75720 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
00Aug 13, 2021Aug 3, 2021Yes
00May 18, 2021May 5, 2021Yes

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 C42-317-43797

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

Yates2,869-29
Queen3,808-968
Grayburg3,964-1,124
San Andres4,446-1,606
Clear Fork6,564-3,724
Spraberry7,964-5,124
Santa Rosa—
Wolfcamp—

10 TOPS · FIRST 8

Alldale 136-321 E42-317-43799

0.2 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
Santa Rosa—
Cisco—

11 TOPS · FIRST 8

Alldale 136-321 A42-317-43785

0.2 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
Santa Rosa—
Cisco—

10 TOPS · FIRST 8

Alldale 136-321 G42-317-43801

0.2 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

0.2 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
Cisco—

12 TOPS · FIRST 8

Alldale 136-321 B42-317-43796

0.2 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
Cisco—
Wolfcamp—

11 TOPS · FIRST 8

Alldale 136-321 F42-317-43800

0.2 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
Dean—
Santa Rosa—

10 TOPS · FIRST 8

Alldale SN42-317-41991

0.3 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

Developers: this page as JSON is GET /v1/data/wells/31743109, documented in the API reference.