TEXAS · WELLS · UPTON COUNTY · UNIVERSITY "3-31" LEASE · API 42-461-38074 · DISTRICT 6E

University 3-31 #5H

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

University 3-31 #5H (API 42-461-38074) is a horizontal well in Upton County operated by Pioneer Natural Res. USA Inc., completed November 10, 2012 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued May 14, 2012, permitted to 8,413 ft.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its lease has reported 510K barrels of oil and 704K mcf of gas since February 2008, last reporting volume in April 2026. The lease carries 5 wells, so these are lease totals, not this well alone.

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
15,633
Phone
(972) 444-4001

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.May 14, 2012
8,413
total depth, ft
2
permits on file
May 14, 2012
last permit issued
Nov 10, 2012
completed
510K
cumulative oil, bbl
704K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 10, 2012
Shut in
—
Plugged
—

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

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University "3-31" O-9-16499Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.5510K704KFeb 2008 – Apr 2026

Oil, barrels lease total

Last 12 months 18,309 · prior 12 27,435(-33%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 38,727 · prior 12 38,111(+2%)

02K4K6K202420252026

Chain of custody

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

  1. 1Pioneer Natural Res. USA, Inc.Feb 2008 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
739057-98DrillPioneer Natural Res. USA, Inc.Nov 14, 2012May 14, 2012Sep 1, 20128,700
739057-99DrillPioneer Natural Res. USA, Inc.Apr 25, 2012May 14, 2012Sep 1, 20128,700

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 10, 2012University 3-31 O-9-16499Spraberry (Trend Area)Pioneer Natural Res. USA Inc.Producing8,413

Formation tops

As filed on W-2/G-1. Subsea from 2,855 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY6,404-3,549
Dean7,725-4,870
WolfcampUPPER WOLFCAMP7,897-5,042

Perforations

Perforated and open-hole intervals.

FromToType
8,53015,750Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37573117.5875 S
9.6257,93612.251,425 S
5.515,8578.52,470 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 13, 2021Jul 12, 2021—
00Nov 27, 2013Feb 15, 2013Yes

Well logs

1 log loaded from the RRC's log index, the latest received Sep 28, 2015. Density, Neutron. 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
NEUTRON/DENSITY POROSITYSpans Spraberry, Dean, WolfcampTIFF2,000 to 8,575Sep 28, 2015run Oct 15, 20122.91

"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. The University Lands library has no per-well link: then paste it into its search.

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/46138074, documented in the API reference.