WELL · 42-329-43071 · DISTRICT 8

Shackelford W39D #4H

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

Shackelford W39d #4H (API 42-329-43071) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed October 5, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 11, 2019, permitted to 10,600 ft.

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

Its lease has reported 592K barrels of oil and 1.92M mcf of gas since October 2019, last reporting in July 2026.

Operator of record

Pioneer Natural Res. USA Inc.

Spring, TX · P-5 Y, filed May 4, 2026 · 15,618 permits on file · (972) 598-8150

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.Feb 11, 2019

10,600: total depth, ft
1: permits on file
Feb 11, 2019: last permit issued
Oct 5, 2019: completed
592K: cumulative oil, bbl
1.92M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Oct 5, 2019
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

31.829571, -101.828509

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

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Shackelford W39D O-10-52829	Spraberry (Trend Area) R 40 Exc	Pioneer Natural Res. USA, Inc.	1	592K	1.92M	Oct 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 138,481 · prior 12 190,966(-27%)

Oil, barrels lease total

Last 12 months 24,656 · prior 12 27,121(-9%)

Chain of custody

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

1Pioneer Natural Res. USA, Inc.Oct 2019 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
848682-99	Drill	Pioneer Natural Res. USA, Inc.	Jan 14, 2019	Feb 11, 2019	Mar 6, 2019	10,600

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-10-52829	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 2,654 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	996	1,658
Yates	2,442	212
Seven Rivers	2,528	126
Yates	2,528	126
Queen	2,844	-190
Seven Rivers	2,844	-190
Grayburg	3,494	-840
Queen	3,494	-840
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	3,794	-1,140
Grayburg	3,841	-1,187
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	3,841	-1,187
Spraberry	6,033	-3,379
Clear ForkCLEARFORK	6,124	-3,470
Spraberry	7,071	-4,417
SpraberrySPRABERRY UPPER-DEAN	8,006	-5,352
SpraberrySPRABERRY UPPER-DEAN	8,448	-5,794
Glorieta	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
9,003	18,875	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	1,473	17.5	1,470 S
9.625	5,393	12.25	773 S
5.5	18,911	6.75	977 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	Mar 10, 2020	Dec 3, 2019	—
00	Jan 29, 2020	Oct 23, 2019	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 42-329-43071 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-43071 → 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 neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Shackelford W39E42-329-43072

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

Santa Rosa	1,010	1,644
Yates	2,502	152
Seven Rivers	2,798	-144
Queen	3,454	-800
Grayburg	3,490	-836
San Andres	3,968	-1,314
Clear Fork	6,111	-3,457
Spraberry	7,058	-4,404

10 TOPS · FIRST 8

Shackelford W39F42-329-43073

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

Santa Rosa	1,000	1,654
Yates	2,513	141
Seven Rivers	2,828	-174
Queen	3,483	-829
Grayburg	3,826	-1,172
San Andres	3,985	-1,331
Clear Fork	6,096	-3,442
Spraberry	7,065	-4,411

10 TOPS · FIRST 8

Shackelford W39B42-329-43069

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

Santa Rosa	1,004	1,648
Yates	2,504	148
Seven Rivers	2,826	-174
Queen	3,509	-857
San Andres	4,191	-1,539
Clear Fork	6,153	-3,501
Spraberry	7,066	-4,414
Spraberry	8,440	-5,788

10 TOPS · FIRST 8

Shackelford W39C42-329-43070

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

Santa Rosa	1,240	1,412
Yates	2,500	152
Seven Rivers	2,822	-170
Queen	3,497	-845
Grayburg	3,826	-1,174
San Andres	3,988	-1,336
Clear Fork	6,142	-3,490
Spraberry	7,059	-4,407

11 TOPS · FIRST 8

Shackelford W39A42-329-43067

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

Santa Rosa	978	1,674
Yates	2,416	236
Seven Rivers	2,510	142
Queen	2,831	-179
Grayburg	3,828	-1,176
San Andres	3,976	-1,324
Clear Fork	6,164	-3,512
Spraberry	7,071	-4,419

10 TOPS · FIRST 8

Arthur Judkins42-329-30221

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

Spraberry	7,052	-4,428
Spraberry	7,052	-4,428
Spraberry	7,600	-4,976
Spraberry	7,600	-4,976
Dean	8,438	-5,814
Dean	8,438	-5,814
Wolfcamp	8,618	-5,994
Wolfcamp	8,618	-5,994

13 TOPS · FIRST 8

Shackelford 33U42-329-42540

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

Santa Rosa	1,010	1,643
Yates	2,484	169
Seven Rivers	2,793	-140
Queen	3,407	-754
Grayburg	3,932	-1,279
San Andres	4,143	-1,490
Clear Fork	6,114	-3,461
Spraberry	7,039	-4,386

10 TOPS · FIRST 8

Shackelford42-329-42547

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

Santa Rosa	472	2,181
Yates	2,473	180
Seven Rivers	2,801	-148
Queen	3,482	-829
Grayburg	3,926	-1,273
San Andres	4,116	-1,463
Clear Fork	6,131	-3,478
Spraberry	7,037	-4,384

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/32943071, documented in the API reference.