WELL · 42-115-33152 · DISTRICT 8

Peters 21 #4

Y

Dawson County · Spraberry (Trend Area) field · Producing  · Vertical

Peters 21 #4 (API 42-115-33152) is a well in Dawson County operated by Diamondback E&P LLC, completed February 25, 2008 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2005 and 2017, permitted to 12,000 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 5 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.

Its lease has reported 89.5K barrels of oil and 87.7K mcf of gas since July 2005, last reporting in July 2026. The lease carries 2 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 · 5,231 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 permitEndeavor Energy Resources L.P.Dec 13, 2017

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

12,000
total depth, ft
2
permits on file
Dec 13, 2017
last permit issued
Feb 25, 2008
completed
89.5K
cumulative oil, bbl
87.7K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 25, 2008
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.524658, -102.001690

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Dawson 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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Peters "21" O-10-37862Spraberry (Trend Area)Diamondback E&P LLC289.5K87.7KJul 2005 – Jul 2026

Oil, barrels lease total

Last 12 months 1,371 · prior 12 1,709(-20%)

0100200300202420252026

Gas, mcf lease total

Last 12 months 310 · prior 12 0

0100200300202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Jul 2005 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
833368-99RecompletionEndeavor Energy Resources L.P.Nov 17, 2017Dec 13, 2017—11,020
608783-99DrillEndeavor Energy Resources L.P.Nov 1, 2005Nov 2, 2005Jun 8, 200712,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-37862————

Formation tops

As filed on W-2/G-1. Subsea from 2,866 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,775-4,909
SpraberryLOWER SPRABERRY8,325-5,459
Dean9,175-6,309
WolfcampWOLFCAMP LIME9,400-6,534
StrawnSTRAWN LIME10,668-7,802
StrawnSTRAWN LIME10,700-7,834
StrawnBASE STRAWN LIME10,950-8,084
Atoka——

Perforations

Perforated and open-hole intervals.

FromToType
8,33310,601Perforated
8,33310,895Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7538517.5380 S
8.6255,34311700 S
4.511,0207.8751,440 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 26, 2018Apr 3, 2018—
00Feb 25, 2008Nov 15, 2007Yes
00Feb 1, 2008——

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 →

Peters '25'42-115-33121

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

Spraberry7,775-4,905
Spraberry8,315-5,445
Wolfcamp10,000-7,130
Strawn10,670-7,800
Strawn10,875-8,005
Atoka—

Peters '21'42-317-34539

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

Clear Fork5,950-3,094
Spraberry7,780-4,924
Spraberry8,325-5,469
Dean9,125-6,269
Wolfcamp9,400-6,544
Strawn10,650-7,794

Peters '20'42-317-30746

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

Spraberry7,750-4,878
Spraberry8,275-5,403
Wolfcamp10,000-7,128
Strawn10,300-7,428
Atoka—

Peters '25'42-115-33151

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

Spraberry7,775-4,882
Spraberry8,325-5,432
Wolfcamp10,000-7,107
Strawn10,675-7,782
Atoka—

Peters '20'42-317-34616

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

Yates2,675201
San Andres5,100-2,224
Clear Fork7,625-4,749
Spraberry7,790-4,914
Wolfcamp10,050-7,174
Wolfcamp10,050-7,174
Strawn10,625-7,749
Atoka—

Trigger 19-1842-115-33815

2.8 KM · Reliance Energy, Inc. · Section with this well →

Yates2,955-38
San Andres4,849-1,932
San Andres4,849-1,932
Spraberry7,797-4,880
Dean9,164-6,247
Wolfcamp9,285-6,368
Canyon—
Devonian—

11 TOPS · FIRST 8

Pula 29 SWD42-115-33939

3.2 KM · Stonehill Culberson, LLC · Section with this well →

Rustler1,8781,000
Salado1,953925
Tansill2,539339
Yates2,648230
Seven Rivers2,86513
Queen3,819-941
Grayburg4,343-1,465
San Andres4,618-1,740

10 TOPS · FIRST 8

Pula 32 SWD42-115-34129

3.5 KM · Stonehill Dawson, LLC · Section with this well →

Yates2,660202
Seven Rivers2,83032
Queen3,790-928
Grayburg4,324-1,462
San Andres4,594-1,732
Glorieta5,360-2,498
Spraberry—
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/11533152, documented in the API reference.