WELL · 42-317-35057 · DISTRICT 8

Elrod 4A #3

Y

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

Elrod 4a #3 (API 42-317-35057) is a well in Martin County operated by Diamondback E&P LLC, completed January 30, 2009 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits (amended once) between 2007 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 7 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.

Its lease has reported 272K barrels of oil and 442K mcf of gas since February 2008, 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 · 5,237 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 20, 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
3
permits on file
Jun 20, 2017
last permit issued
Jan 30, 2009
completed
272K
cumulative oil, bbl
442K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 30, 2009
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.289517, -101.767265

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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Elrod "4A" O-10-38862Spraberry (Trend Area)Diamondback E&P LLC2272K442KFeb 2008 – Jul 2026

Oil, barrels lease total

Last 12 months 5,109 · prior 12 12,100(-58%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 18,065 · prior 12 32,135(-44%)

02K4K202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Feb 2008 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
827617-99RecompletionEndeavor Energy Resources L.P.Jun 8, 2017Jun 20, 2017Jan 26, 200910,805
646933-98DrillEndeavor Energy Resources L.P.Oct 11, 2007Oct 3, 2007Nov 11, 200712,000
646933-99DrillEndeavor Energy Resources L.P.Sep 28, 2007Oct 3, 2007Nov 11, 200712,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-38862————

Formation tops

As filed on W-2/G-1. Subsea from 2,568 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry6,900-4,332
Spraberry6,909-4,341
Dean8,200-5,632
Wolfcamp8,525-5,957
Wolfcamp8,554-5,986
Strawn9,925-7,357
Strawn9,993-7,425
Mississippian10,232-7,664
Woodford10,750-8,182
Atoka——

Perforations

Perforated and open-hole intervals.

FromToType
6,9147,088Perforated
6,91410,722Perforated
7,43810,722Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7525517.5300 S
8.6254,45911700 S
4.510,8057.8751,580 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
00Nov 9, 2017Aug 1, 2017—
00Dec 8, 2008Jun 2, 2008Yes
00Nov 18, 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 →

Tyrion SWD42-317-42092

0.1 KM · XTO Energy Inc. · Section with this well →

Santa Rosa4212,148
Yates2,090479
Queen3,169-600
Grayburg3,397-828
San Andres3,451-882
Spraberry6,650-4,081
Dean8,206-5,637
Wolfcamp8,405-5,836

10 TOPS · FIRST 8

Elrod '4A'42-317-35193

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

Clear Fork5,475-2,895
Spraberry6,900-4,320
Dean8,200-5,620
Wolfcamp8,550-5,970
Wolfcamp8,550-5,970
Strawn9,950-7,370
Strawn9,950-7,370
Mississippian10,200-7,620

10 TOPS · FIRST 8

Big Jay 10-15 A42-317-42613

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8601,704
Yates2,078486
Queen2,783-219
Grayburg3,434-870
San Andres3,754-1,190
Spraberry6,867-4,303
Dean8,169-5,605
Wolfcamp8,289-5,725

10 TOPS · FIRST 8

Big Jay 10-15 A42-317-42614

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8601,704
Yates2,078486
Queen2,788-224
Grayburg3,434-870
San Andres3,754-1,190
Spraberry6,874-4,310
Cisco—
Pennsylvanian—

10 TOPS · FIRST 8

Big Jay 10-15 A42-317-42615

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8561,708
Yates2,079485
Queen2,789-225
Grayburg3,437-873
San Andres3,758-1,194
Spraberry6,866-4,302
Cisco—
Dean—

10 TOPS · FIRST 8

Big Jay 10-15 A42-317-42616

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8761,689
Yates2,086479
Queen2,785-220
Grayburg3,441-876
San Andres3,787-1,222
Spraberry6,901-4,336
Cisco—
Dean—

10 TOPS · FIRST 8

Big Jay 10-15 B42-317-42619

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8821,683
Yates2,084481
Queen2,792-227
Grayburg3,442-877
San Andres3,754-1,189
Spraberry6,875-4,310
Pennsylvanian—
Wolfcamp—

10 TOPS · FIRST 8

Big Jay 10-15 B42-317-42618

0.6 KM · Birch Operations, Inc. · Section with this well →

Santa Rosa8651,700
Yates2,085480
Queen2,785-220
Grayburg3,442-877
San Andres3,757-1,192
Spraberry6,872-4,307
Dean8,199-5,634
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/31735057, documented in the API reference.