WELL · 42-329-35102 · DISTRICT 8

Spinks 12 #1

N

Midland County · Azalea (Devonian) field  · Horizontal

Spinks 12 #1 (API 42-329-35102) is a permitted horizontal well in Midland County filed by Endeavor Energy Resources L.P.; no completion report is on file yet.

The RRC has issued 4 drilling permits (amended twice) between 2004 and 2018, permitted to 12,808 ft.

It was permitted by Endeavor Energy Resources L.P. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.

Completion filings report 7 formation tops, including Spraberry, Jo Mill, Dean, Wolfcamp.

Its 2 leases have reported 68.6K barrels of oil and 274K mcf of gas since October 2004, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.

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 schedulePioneer Natural Res. USA Inc.
Production reportsPioneer Natural Res. USA, Inc.through Jul 2021
Latest permitEndeavor Energy Resources L.P.Jul 9, 2018

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

12,808
total depth, ft
6
permits on file
Jul 9, 2018
last permit issued
—
completed
68.6K
cumulative oil, bbl
274K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2004 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

31.997158, -101.939990

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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Spinks "12" O-10-37518Azalea (Devonian)Pioneer Natural Res. USA, Inc.214K123KOct 2004 – Jul 2026
Spinks "12" O-10-40749Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.154.6K151KAug 2009 – Jul 2026

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Oct 2004 → Jun 2019
  2. 2DE3 Operating LLCJul 2019 → May 2021
  3. 3Pioneer Natural Res. USA, Inc.Jun 2021 → Jul 2021

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
841116-99RecompletionEndeavor Energy Resources L.P.Jun 12, 2018Jul 9, 2018Jun 2, 200911,469
722908-98RecompletionEndeavor Energy Resources L.P.Nov 14, 2011Nov 9, 2011—12,808
722908-99RecompletionEndeavor Energy Resources L.P.Aug 23, 2011Nov 9, 2011Jun 2, 200912,808
681307-98RecompletionEndeavor Energy Resources L.P.Dec 17, 2009May 19, 2009Jun 2, 200911,500
681307-99RecompletionEndeavor Energy Resources L.P.May 15, 2009May 19, 2009—11,500
545404-99DrillEndeavor Energy Resources L.P.May 6, 2004May 6, 2004May 25, 200412,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-37518————
—— O-10-37518————
—— O-10-40749————

Formation tops

As filed on W-2/G-1. Subsea from 2,718 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,460-4,742
SpraberryUPPER SPRABERRY7,460-4,742
SpraberryUPPER SPRABERRY7,552-4,834
SpraberryLOWER SPRABERRY8,100-5,382
Jo Mill8,297-5,579
Dean8,788-6,070
Dean8,908-6,190
Wolfcamp9,025-6,307
Wolfcamp9,108-6,390
Strawn10,325-7,607
StrawnSTRAWN LIME10,325-7,607
Strawn10,495-7,777
Bend10,531-7,813
BendBEND LIME10,531-7,813
Atoka10,675-7,957

Perforations

Perforated and open-hole intervals.

FromToType
8,02910,290Perforated
8,02910,942Perforated
11,79513,010Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37530017.5325 S
9.6255,21312.25600 S
79,0288.5730 S
711,5508.5385 S
711,5588.5385 S
7—8.5730 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
00Aug 15, 2018Jul 13, 2018—
00Dec 7, 2011Feb 16, 2010Yes
00Jul 5, 2011——
00Sep 26, 2005Nov 15, 2004Yes
00Jul 26, 2005——

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 →

Jet42-329-42390

1.2 KM · Lario Oil & Gas Company · Section with this well →

Santa Rosa9891,718
Yates2,754-47
Seven Rivers3,042-335
Queen3,762-1,055
Grayburg4,433-1,726
San Andres4,468-1,761
Glorieta5,711-3,004
Clear Fork6,393-3,686

11 TOPS · FIRST 8

Macho Man 11-47 H42-329-48013

1.8 KM · Diamondback E&P LLC · Section with this well →

Rustler1,6721,035
Yates2,61988
Grayburg4,236-1,529
San Andres4,497-1,790
Clear Fork6,700-3,993
Spraberry7,509-4,802
Glorieta—
Seven Rivers—

10 TOPS · FIRST 8

Macho Man 11-47 K42-329-48016

1.8 KM · Diamondback E&P LLC · Section with this well →

Yates2,63770
Grayburg4,255-1,548
San Andres4,515-1,808
Clear Fork6,698-3,991
Spraberry7,527-4,820
Glorieta—
Spraberry—
Wolfcamp—

10 TOPS · FIRST 8

Macho Man 11-47 L42-329-48017

1.8 KM · Diamondback E&P LLC · Section with this well →

Rustler1,6671,040
Yates2,61493
Grayburg4,232-1,525
San Andres4,493-1,786
Clear Fork6,692-3,985
Spraberry7,505-4,798
Glorieta—
Seven Rivers—

10 TOPS · FIRST 8

Macho Man 11-47 I42-329-48014

1.8 KM · Diamondback E&P LLC · Section with this well →

Rustler1,6881,019
Yates2,63572
Grayburg4,252-1,545
San Andres4,513-1,806
Clear Fork6,695-3,988
Spraberry7,525-4,818
Queen—
Seven Rivers—

10 TOPS · FIRST 8

Macho Man 11-47 F42-329-48011

1.8 KM · Diamondback E&P LLC · Section with this well →

Rustler1,6891,018
Yates2,63671
Grayburg4,254-1,547
San Andres4,515-1,808
Clear Fork6,699-3,992
Spraberry7,528-4,821
Glorieta—
Seven Rivers—

10 TOPS · FIRST 8

Nature Boy 11-38 G42-329-48028

1.8 KM · Diamondback E&P LLC · Section with this well →

Santa Rosa1,728981
Yates2,61990
Queen3,501-792
Grayburg4,264-1,555
San Andres4,464-1,755
Glorieta5,461-2,752
Clear Fork6,694-3,985
Spraberry7,522-4,813

10 TOPS · FIRST 8

Macho Man 11-47 G42-329-48012

1.8 KM · Diamondback E&P LLC · Section with this well →

Rustler1,6951,012
Yates2,64265
Grayburg4,260-1,553
San Andres4,520-1,813
Clear Fork6,703-3,996
Spraberry7,533-4,826
Seven Rivers—
Queen—

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/32935102, documented in the API reference.