Petrora

TEXAS · WELLS · GLASSCOCK COUNTY · TOM-MILLS 48L LEASE · API 42-173-38540 · DISTRICT 7B

Tom-Mills 48L #12H

Y

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

Tom-Mills 48l #12H (API 42-173-38540) is a horizontal well in Glasscock County operated by Pioneer Natural Res. USA Inc., completed February 13, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued September 3, 2021, permitted to 8,086 ft.

Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.

Its lease has reported 158K barrels of oil and 375K mcf of gas since February 2022, last reporting volume in April 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
Watch this operatorWatch Glasscock County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePioneer Natural Res. USA Inc.
Production reportsPioneer Natural Res. USA, Inc.through Apr 2026
Latest permitPioneer Natural Res. USA, Inc.Sep 3, 2021
8,086
total depth, ft
1
permits on file
Sep 3, 2021
last permit issued
Feb 13, 2022
completed
158K
cumulative oil, bbl
375K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2022 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 13, 2022
Shut in
—
Plugged
—

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

Surface location

32.062844, -101.749476 NAD27, as filed

32.062970, -101.749883 WGS84

Google Maps ↗

Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Glasscock County.

Wells nearby

Every well with a location on file around this one, in any state, nearest first.

Open the full map →

Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tom-Mills 48L O-10-57176Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.1158K375KFeb 2022 – Apr 2026

Oil, barrels lease total

Last 12 months 15,074 · prior 12 21,636(-30%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 68,438 · prior 12 82,916(-17%)

05K10K15K202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Feb 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
872348-99DrillPioneer Natural Res. USA, Inc.Aug 30, 2021Sep 3, 2021Oct 9, 202110,173

Completions

CompletedLeaseFieldOperatorStatusDepth
Feb 13, 2022Tom-Mills 48L O-10-57176Spraberry (Trend Area)Pioneer Natural Res. USA Inc.Producing8,086

Formation tops

As filed on W-2/G-1. Subsea from 2,649 ft elevation.Download CSV →

FormationMD ftSubsea
Santa Rosa1,0401,609
Rustler1,3861,263
Yates2,213436
Seven Rivers2,444205
Queen3,087-438
Grayburg3,441-792
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO3,467-818
Clear ForkCLEARFORK5,886-3,237
Spraberry6,905-4,256
Glorieta——

Perforations

Perforated and open-hole intervals.

FromToType
8,69418,075Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,27917.51,350 S
9.6255,16612.251,013 S
5.518,0956.75926 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 19, 2022Apr 27, 2022Yes

Well logs

1 log loaded from the RRC's log index, the latest received Apr 27, 2022. Cement bond. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
Cement BondSpans Santa Rosa, Rustler, Yates, Seven Rivers, Queen, Grayburg, San Andres, Clear Fork, SpraberryTIFF0 to 8,321Apr 27, 202229.2

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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 →

Tom-Mills 48K42-173-38539

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

Santa Rosa1,0401,609
Rustler1,3951,254
Yates2,118531
Seven Rivers2,437212
Queen3,076-427
Grayburg3,429-780
San Andres4,899-2,250
Clear Fork5,886-3,237

10 TOPS · FIRST 8

Tom-Mills 48M42-173-38541

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

Santa Rosa1,0401,609
Rustler1,3901,259
Yates2,218431
Seven Rivers2,439210
Queen3,083-434
Grayburg3,442-793
San Andres4,897-2,248
Spraberry5,899-3,250

10 TOPS · FIRST 8

Houston-Wells 2W42-173-37704

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

Santa Rosa1,0441,600
Yates2,192452
Seven Rivers2,422222
Grayburg3,480-836
San Andres3,762-1,118
Clear Fork5,905-3,261
Spraberry6,925-4,281
Queen—

10 TOPS · FIRST 8

Houston-Wells 2V42-173-37703

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

Santa Rosa1,0301,614
Yates2,195449
Seven Rivers2,422222
Queen3,109-465
Grayburg3,490-846
San Andres3,779-1,135
Clear Fork5,927-3,283
Spraberry6,937-4,293

10 TOPS · FIRST 8

Houston-Wells 2U42-173-37702

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

Santa Rosa1,6251,020
Yates2,196449
Seven Rivers2,430215
Queen3,098-453
Grayburg3,601-956
San Andres3,818-1,173
Clear Fork5,903-3,258
Spraberry6,933-4,288

10 TOPS · FIRST 8

Houston-Wells 2S42-173-37699

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

Santa Rosa1,6331,012
Yates2,192453
Seven Rivers2,428217
Queen3,101-456
Grayburg3,613-968
San Andres3,822-1,177
Clear Fork5,903-3,258
Spraberry6,929-4,284

10 TOPS · FIRST 8

Houston-Wells 2T42-173-37701

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

Santa Rosa1,659986
Yates2,193452
Seven Rivers2,434211
Queen3,100-455
Grayburg3,614-969
San Andres3,818-1,173
Clear Fork5,908-3,263
Spraberry6,933-4,288

10 TOPS · FIRST 8

Shotcaller42-173-39341

1.8 KM · Black Swan Opco, LLC · Section with this well →

Rustler1,4211,204
Yates2,180445
Seven Rivers2,414211
Queen3,156-531
Grayburg3,778-1,153
Clear Fork5,003-2,378
San Andres6,046-3,421
Spraberry7,008-4,383

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/17338540, documented in the API reference.