WELL · 42-317-45297 · DISTRICT 8

Chest Thumper 1-5 Unit 1B #234

Y

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

Chest Thumper 1-5 Unit 1b #234 (API 42-317-45297) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed April 12, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 8, 2023, permitted to 99,999 ft.

It was permitted by Endeavor Energy Resources L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Santa Rosa, Yates, Queen, Grayburg.

Its lease has reported 584K barrels of oil and 1.88M mcf of gas since October 2023, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.

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 permitEndeavor Energy Resources L.P.Jun 8, 2023

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

99,999
total depth, ft
1
permits on file
Jun 8, 2023
last permit issued
Apr 12, 2024
completed
584K
cumulative oil, bbl
1.88M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 12, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.241584, -102.025468

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; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Chest Thumper 1-5 Unit 1B O-10-60620Spraberry (Trend Area)Diamondback E&P LLC3584K1.88MOct 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 141,734 · prior 12 396,680(-64%)

020K40K60K202420252026

Gas, mcf lease total

Last 12 months 866,051 · prior 12 968,495(-11%)

050K100K150K202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Apr 2024 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
891065-99DrillEndeavor Energy Resources L.P.Jun 1, 2023Jun 8, 2023Jan 10, 202499,999

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-60620————

Formation tops

As filed on W-2/G-1. Subsea from 2,785 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,0001,785
Yates2,71867
Yates2,72857
Queen3,525-740
Queen3,603-818
Grayburg4,069-1,284
Grayburg4,706-1,921
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H4,884-2,099
San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H5,120-2,335
Clear ForkCLEARFORK, UPPER6,500-3,715
Spraberry7,740-4,955
Dean9,057-6,272
Dean9,069-6,284
Wolfcamp9,297-6,512
Wolfcamp9,329-6,544
Cisco——
Pennsylvanian——

Perforations

Perforated and open-hole intervals.

FromToType
9,82222,669Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,86917.51,615 S
10.756,93212.251,215 S
5.522,7037.8752,180 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 30, 2024May 31, 2024Yes
00Apr 15, 2024Feb 14, 2024Yes

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 →

Chest Thumper 1-5 Unit 142-317-45468

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,71273
Queen3,522-737
Grayburg3,974-1,189
San Andres4,832-2,047
Clear Fork6,492-3,707
Spraberry7,739-4,954
Wolfcamp—

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45288

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,72065
Queen3,521-736
Grayburg4,069-1,284
San Andres4,904-2,119
Clear Fork6,502-3,717
Spraberry7,751-4,966
Dean9,097-6,312

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45289

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,70976
Queen3,526-741
Grayburg3,974-1,189
San Andres4,836-2,051
Clear Fork6,498-3,713
Spraberry7,745-4,960
Cisco—

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 1A42-317-45294

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,72857
Queen3,563-778
Grayburg4,078-1,293
San Andres4,949-2,164
Clear Fork6,502-3,717
Spraberry7,756-4,971
Dean9,077-6,292

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45290

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,71372
Queen3,533-748
Grayburg3,974-1,189
San Andres4,836-2,051
Clear Fork6,500-3,715
Spraberry7,742-4,957
Cisco—

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45291

0.0 KM · Endeavor Energy Resources L.P. · Section with this well →

Cisco—
Dean—
Grayburg—
Pennsylvanian—
Queen—
San Andres—
Santa Rosa—
Spraberry—

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45287

0.2 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,70580
Queen3,530-745
Grayburg3,967-1,182
San Andres4,825-2,040
Clear Fork6,491-3,706
Spraberry7,738-4,953
Cisco—

10 TOPS · FIRST 8

Chest Thumper 1-5 Unit 142-317-45286

0.2 KM · Endeavor Energy Resources L.P. · Section with this well →

Santa Rosa1,0001,785
Yates2,69788
Queen3,524-739
Grayburg3,967-1,182
San Andres4,825-2,040
Clear Fork6,485-3,700
Spraberry7,732-4,947
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/31745297, documented in the API reference.