WELL · 42-329-45945 · DISTRICT 8

Shackelford 40-12AB #28H

Midland County · Spraberry (Trend Area) field · Producing · Horizontal

Shackelford 40-12ab #28H (API 42-329-45945) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed July 12, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 20, 2022, permitted to 10,475 ft.

Completion filings report 12 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.

Its lease has reported 429K barrels of oil and 856K mcf of gas since December 2023, last reporting in July 2026.

Operator of record

Pioneer Natural Res. USA Inc.

Spring, TX · P-5 Y, filed May 4, 2026 · 15,619 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.Oct 20, 2022

10,475: total depth, ft
2: permits on file
Oct 20, 2022: last permit issued
Jul 12, 2024: completed
429K: cumulative oil, bbl
856K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jul 12, 2024
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

31.804265, -101.885920

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 40-12AB O-10-61184	Spraberry (Trend Area)	Pioneer Natural Res. USA, Inc.	1	429K	856K	Dec 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 154,947 · prior 12 274,540(-44%)

Gas, mcf lease total

Last 12 months 444,959 · prior 12 410,739(+8%)

Chain of custody

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

1Pioneer Natural Res. USA, Inc.Jul 2024 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
883928-98	Drill	Pioneer Natural Res. USA, Inc.	Jun 6, 2023	Oct 20, 2022	Dec 11, 2023	10,475
883928-99	Drill	Pioneer Natural Res. USA, Inc.	Sep 13, 2022	Oct 20, 2022	—	10,475

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-10-61184	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 2,700 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	965	1,735
Rustler	1,604	1,096
Yates	2,515	185
Seven Rivers	2,797	-97
Queen	3,500	-800
Grayburg	4,003	-1,303
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	4,103	-1,403
Clear ForkCLEARFORK	6,362	-3,662
Spraberry	7,235	-4,535
Cambrian	—	—
Ellenburger	—	—
Glorieta	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
9,189	24,814	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	1,433	17.5	1,600 S
9.625	5,587	12.25	1,033 S
5.5	24,834	6.75	1,365 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	Oct 30, 2024	Sep 17, 2024	—
00	Aug 8, 2024	May 12, 2024	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 42-329-45945 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-45945 → 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 40-12H42-329-45944

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

Santa Rosa	965	1,735
Rustler	1,603	1,097
Yates	2,490	210
Seven Rivers	2,771	-71
Queen	3,446	-746
Grayburg	3,924	-1,224
San Andres	4,013	-1,313
Clear Fork	6,359	-3,659

10 TOPS · FIRST 8

Shackelford 40-12G42-329-45943

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

Santa Rosa	965	1,735
Rustler	1,606	1,094
Yates	1,651	1,049
Seven Rivers	2,509	191
Queen	3,496	-796
Grayburg	3,995	-1,295
San Andres	4,087	-1,387
Clear Fork	6,356	-3,656

10 TOPS · FIRST 8

Shackelford 29-17Q42-329-47373

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

Santa Rosa	1,001	1,700
Rustler	1,612	1,089
Yates	2,513	188
Seven Rivers	2,794	-93
Queen	3,499	-798
Grayburg	4,003	-1,302
San Andres	4,223	-1,522
Clear Fork	6,362	-3,661

10 TOPS · FIRST 8

Shackelford 29-17P42-329-47372

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

Santa Rosa	1,001	1,700
Rustler	1,624	1,077
Yates	2,536	165
Seven Rivers	2,832	-131
Queen	3,577	-876
Grayburg	4,179	-1,478
San Andres	4,305	-1,604
Clear Fork	6,514	-3,813

10 TOPS · FIRST 8

Shackelford 29-17O42-329-47371

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

Santa Rosa	1,001	1,700
Rustler	1,606	1,095
Queen	2,498	203
Yates	2,518	183
Seven Rivers	2,805	-104
Grayburg	4,101	-1,400
San Andres	4,221	-1,520
Clear Fork	6,340	-3,639

10 TOPS · FIRST 8

Shackelford 29-17N42-329-47370

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

Santa Rosa	1,001	1,700
Rustler	1,622	1,079
Yates	2,530	171
Seven Rivers	2,808	-107
Queen	3,516	-815
Grayburg	4,086	-1,385
San Andres	4,207	-1,506
Clear Fork	6,349	-3,648

18 TOPS · FIRST 8

Shackelford 29-17M42-329-47369

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

Santa Rosa	1,001	1,700
Rustler	1,586	1,115
Yates	2,515	186
Seven Rivers	2,803	-102
Queen	3,503	-802
Grayburg	4,082	-1,381
San Andres	4,209	-1,508
Clear Fork	6,340	-3,639

14 TOPS · FIRST 8

Shackelford 29-17L42-329-47368

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

Santa Rosa	1,001	1,700
Rustler	1,613	1,088
Yates	2,523	178
Seven Rivers	2,806	-105
Queen	3,498	-797
Grayburg	4,085	-1,384
San Andres	4,208	-1,507
Clear Fork	6,344	-3,643

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/32945945, documented in the API reference.