WELL · 42-329-41957 · DISTRICT 8

Midkiff 1U #21H

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

Midkiff 1u #21H (API 42-329-41957) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed July 31, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 4, 2017, permitted to 10,500 ft.

Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.

Its lease has reported 521K barrels of oil and 2.92M mcf of gas since July 2018, last reporting in July 2026.

Operator of record

Pioneer Natural Res. USA Inc.

Based in: Spring, TX
P-5 status: Active (A)
P-5 last filed: Jul 8, 2026
Permits on file: 15,628
Phone: (972) 444-4001

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Pioneer Natural Res. USA Inc.
Production reports	Pioneer Natural Res. USA, Inc.through Apr 2026
Latest permit	Pioneer Natural Res. USA, Inc.Oct 4, 2017

10,500: total depth, ft
1: permits on file
Oct 4, 2017: last permit issued
Jul 31, 2018: completed
521K: cumulative oil, bbl
2.92M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jul 31, 2018
Shut in: —
Plugged: —

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

Surface location

31.666145, -101.836567

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; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Midkiff 1U O-10-50845	Spraberry (Trend Area) R 40 Exc	Pioneer Natural Res. USA, Inc.	1	521K	2.92M	Jul 2018 – Jul 2026

Gas, mcf lease total

Last 12 months 194,047 · prior 12 278,010(-30%)

Oil, barrels lease total

Last 12 months 17,188 · prior 12 18,795(-9%)

Chain of custody

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

1Pioneer Natural Res. USA, Inc.Jul 2018 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
830271-99	Drill	Pioneer Natural Res. USA, Inc.	Aug 24, 2017	Oct 4, 2017	Feb 23, 2018	10,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-10-50845	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 2,724 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	750	1,974
Yates	2,472	252
Seven Rivers	2,760	-36
Queen	3,461	-737
Grayburg	3,897	-1,173
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	4,048	-1,324
Clear ForkCLEARFORK	6,239	-3,515
Spraberry	7,120	-4,396
SpraberrySPRABERRY UPPER-DEAN	8,536	-5,812
Glorieta	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
9,477	19,499	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	1,447	17.5	1,425 S
9.625	6,390	12.25	1,215 S
5.5	19,528	6.75	945 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Dec 17, 2018	Oct 31, 2018	Yes

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.

Wellbore filings for 42-329-41957 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-41957 → scanned completion filings

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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Midkiff 1T42-329-41940

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	755	1,969
Yates	2,472	252
Seven Rivers	2,780	-56
Queen	3,469	-745
Grayburg	3,983	-1,259
San Andres	4,119	-1,395
Clear Fork	6,244	-3,520
Spraberry	7,130	-4,406

10 TOPS · FIRST 8

Midkiff 1M42-329-42398

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	1,209	1,523
Yates	2,472	260
Seven Rivers	2,795	-63
Queen	3,483	-751
Grayburg	3,892	-1,160
San Andres	3,994	-1,262
Clear Fork	6,250	-3,518
Spraberry	7,137	-4,405

10 TOPS · FIRST 8

Midkiff E1U42-329-41833

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	752	1,980
Rustler	1,567	1,165
Yates	2,473	259
Seven Rivers	2,803	-71
Queen	3,510	-778
Grayburg	3,908	-1,176
San Andres	5,386	-2,654
Clear Fork	6,239	-3,507

10 TOPS · FIRST 8

Midkiff 1N42-329-42399

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	1,209	1,523
Yates	2,468	264
Seven Rivers	2,788	-56
Queen	3,476	-744
Grayburg	3,880	-1,148
San Andres	3,985	-1,253
Clear Fork	6,246	-3,514
Spraberry	7,129	-4,397

10 TOPS · FIRST 8

Midkiff E1T42-329-41831

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	752	1,980
Rustler	1,563	1,169
Yates	2,480	252
Seven Rivers	2,801	-69
Queen	3,497	-765
Grayburg	3,881	-1,149
San Andres	3,992	-1,260
Clear Fork	6,266	-3,534

10 TOPS · FIRST 8

Midkiff E1O42-329-41829

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	752	1,980
Rustler	1,566	1,166
Yates	2,459	273
Seven Rivers	2,810	-78
Queen	3,508	-776
Grayburg	3,881	-1,149
San Andres	4,023	-1,291
Clear Fork	6,247	-3,515

10 TOPS · FIRST 8

Midkiff E1S42-329-41830

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	1,180	1,552
Rustler	1,576	1,156
Yates	2,471	261
Seven Rivers	2,802	-70
Queen	3,509	-777
Grayburg	3,892	-1,160
San Andres	5,414	-2,682
Clear Fork	6,254	-3,522

10 TOPS · FIRST 8

Midkiff 1O42-329-42397

0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa	1,209	1,523
Yates	2,459	273
Seven Rivers	2,789	-57
Queen	3,484	-752
Grayburg	3,901	-1,169
San Andres	4,019	-1,287
Clear Fork	6,258	-3,526
Spraberry	7,143	-4,411

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/32941957, documented in the API reference.