WELL · 42-329-43130 · DISTRICT 8

WTH 21-16 F #261

Y

Midland County · Spraberry (Trend Area) R 40 Exc field · Producing  · Horizontal

Wth 21-16 F #261 (API 42-329-43130) is a horizontal well in Midland County operated by Diamondback E&P LLC, completed November 2, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued February 28, 2019, permitted to 10,330 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 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.

Its lease has reported 460K barrels of oil and 3.09M mcf of gas since June 2019, 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.Feb 28, 2019

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

10,330
total depth, ft
2
permits on file
Feb 28, 2019
last permit issued
Nov 2, 2019
completed
460K
cumulative oil, bbl
3.09M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 2, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.857686, -101.855152

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Midland 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
WTH 21-16 F O-10-53590Spraberry (Trend Area) R 40 ExcDiamondback E&P LLC2460K3.09MJun 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 736,780 · prior 12 630,380(+17%)

050K100K202420252026

Oil, barrels lease total

Last 12 months 47,006 · prior 12 72,439(-35%)

05K10K15K202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Nov 2019 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
849471-98DrillEndeavor Energy Resources L.P.Jul 13, 2022Feb 28, 2019Apr 4, 201910,330
849471-99DrillEndeavor Energy Resources L.P.Jan 31, 2019Feb 28, 2019Apr 4, 201910,330

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-53590————

Formation tops

As filed on W-2/G-1. Subsea from 2,646 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,0001,646
Yates1,2501,396
Seven Rivers1,3001,346
Queen3,700-1,054
Grayburg4,288-1,642
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO4,549-1,903
Glorieta5,265-2,619
Clear ForkCLEARFORK6,223-3,577
Spraberry7,151-4,505
SpraberrySPRABERRY UPPER-DEAN7,432-4,786
Clear ForkCLEARFORK——
Glorieta——
Grayburg——
Queen——
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO——
Santa Rosa——
Seven Rivers——
Spraberry——
SpraberrySPRABERRY UPPER-DEAN——
Yates——

Perforations

Perforated and open-hole intervals.

FromToType
9,44819,037Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,43617.51,225 S
10.756,92512.25935 S
5.519,1637.8752,075 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
00Oct 10, 2022Jun 21, 2022—
00May 29, 2020Jan 15, 2020Yes
00May 21, 2020Nov 5, 2019Yes

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). 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 →

WTH 21-16 G42-329-43131

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

Santa Rosa1,0001,646
Yates1,2501,396
Seven Rivers1,3001,346
Queen3,700-1,054
Grayburg4,288-1,642
San Andres4,549-1,903
Glorieta5,265-2,619
Clear Fork6,224-3,578

10 TOPS · FIRST 8

WTH 21-16 G42-329-43132

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

Santa Rosa1,0001,646
Yates1,2501,396
Seven Rivers1,3001,346
Queen3,700-1,054
Grayburg4,288-1,642
San Andres4,549-1,903
Glorieta5,159-2,513
Clear Fork6,234-3,588

10 TOPS · FIRST 8

Tex-Harvey Spraberry42-329-43148

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

Grayburg4,288-1,642
San Andres4,549-1,903
Glorieta5,265-2,619
Clear Fork6,229-3,583
Spraberry7,148-4,502
Spraberry8,525-5,879
Wolfcamp—
Cayon-Strawn—

13 TOPS · FIRST 8

WTH 21-16 E42-329-45679

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

Santa Rosa9601,686
Rustler1,4901,156
Yates2,380266
Seven Rivers2,760-114
Queen3,500-854
Grayburg4,160-1,514
San Andres4,552-1,906
Glorieta5,268-2,622

10 TOPS · FIRST 8

WTH 21-16 F42-329-45680

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

Santa Rosa9601,686
Rustler1,4901,156
Yates2,380266
Seven Rivers2,760-114
Queen3,500-854
Grayburg4,160-1,514
San Andres4,552-1,906
Glorieta5,268-2,622

10 TOPS · FIRST 8

WTH 21-16 H42-329-43133

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

Santa Rosa1,0001,646
Yates1,2501,396
Seven Rivers1,3001,346
Queen3,700-1,054
Grayburg4,411-1,765
San Andres5,035-2,389
Glorieta5,159-2,513
Clear Fork6,849-4,203

11 TOPS · FIRST 8

WTH 21-16 H42-329-46005

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

Santa Rosa9601,686
Rustler1,4901,156
Yates2,380266
Seven Rivers2,760-114
Queen3,500-854
Grayburg4,160-1,514
San Andres4,552-1,906
Glorieta5,268-2,622

10 TOPS · FIRST 8

WTH 21-16 G42-329-45682

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

Santa Rosa9601,686
Rustler1,4901,156
Yates2,380266
Seven Rivers2,760-114
Queen3,500-854
Grayburg4,160-1,514
San Andres4,552-1,906
Glorieta5,268-2,622

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/32943130, documented in the API reference.