TEXAS · WELLS · MARTIN COUNTY · DALE "23" LEASE · API 42-317-35834 · DISTRICT 7B

Dale 23 #1

On schedule

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

Fields on the latest permit · any of 3
Hill Ranch (Miss) · Mon Bak (Strawn) · Spraberry (Trend Area)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Dale 23 #1 (API 42-317-35834) is a well in Martin County operated by Diamondback E&P LLC, completed May 14, 2010 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2010 and 2013, permitted to 10,855 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 7 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.

Its lease has reported 75.8K barrels of oil and 83.9K mcf of gas since May 2010, last reporting volume in August 2026.

Operator of record

Diamondback E&P LLC

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

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
May 4, 2026
Permits on file
5,254
Phone
(432) 221-7400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Aug 2026
Latest permitEndeavor Energy Resources L.P.Nov 8, 2013

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

10,855
total depth, ft
2
permits on file
Nov 8, 2013
last permit issued
May 14, 2010
completed
75.8K
cumulative oil, bbl
83.9K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · MAY 2010 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 14, 2010
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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
Dale "23" O-10-40066Spraberry (Trend Area)Diamondback E&P LLC175.8K83.9KMay 2010 – Aug 2026

Oil, barrels lease total

Last 12 months 3,653 · prior 12 3,565(+2%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 2,510 · prior 12 5,946(-58%)

05001K202420252026

Wells named Dale 23

Diamondback E&P LLC's other wells filed under this lease name in Martin County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.May 2010 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
772271-99RecompletionEndeavor Energy Resources L.P.Oct 22, 2013Nov 8, 2013May 3, 201010,855
690778-99DrillEndeavor Energy Resources L.P.Feb 4, 2010Feb 5, 2010Feb 10, 201012,000

Completions

CompletedLeaseFieldOperatorStatusDepth
May 14, 2010Dale 23 O-10-40066Spraberry (Trend Area)Diamondback E&P LLCProducing10,855
May 14, 2010Dale 23 O-10-40066Spraberry (Trend Area)Diamondback E&P LLCProducing10,855

Formation tops

As filed on W-2/G-1. Subsea from 2,571 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry6,953-4,382
Dean8,264-5,693
Wolfcamp8,470-5,899
Strawn9,950-7,379
Strawn10,024-7,453
MississippianMISS10,125-7,554
Woodford10,750-8,179
Atoka——

Perforations

Perforated and open-hole intervals.

FromToType
7,7229,986Perforated
7,72210,747Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7529517.5340 S
8.6254,56411455 S
5.510,8557.8751,355 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Oct 12, 2018Sep 24, 2018—
00Nov 17, 2017Oct 6, 2017—
00Aug 9, 2010Jun 2, 2010—

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

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/31735834, documented in the API reference.