TEXAS · WELLS · UPTON COUNTY · UNIVERSITY 4-12 LEASE · API 42-461-39172 · DISTRICT 6E

University 4-12 #4H

Y

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

University 4-12 #4H (API 42-461-39172) is a horizontal well in Upton County operated by Civitas Permian Operating LLC, completed March 12, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 4, 2013, permitted to 8,385 ft.

It was permitted by Hunt Oil Company and has since transferred to Civitas Permian Operating LLC on the wellbore schedule.

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

Its lease has reported 173K barrels of oil and 237K mcf of gas since March 2014, last reporting volume in June 2024.

Operator of record

Civitas Permian Operating LLC

Permitted by Hunt Oil Company; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
Oct 21, 2025
Permits on file
487
Phone
(303) 861-8140

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCivitas Permian Operating LLC
Production reportsCivitas Permian Operating, LLCthrough Jun 2024
Latest permitHunt Oil CompanyDec 4, 2013

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

8,385
total depth, ft
1
permits on file
Dec 4, 2013
last permit issued
Mar 12, 2014
completed
173K
cumulative oil, bbl
237K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2014 THROUGH Jun 2024

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 12, 2014
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 4-12 O-9-18481Spraberry (Trend Area)Civitas Permian Operating, LLC1173K237KMar 2014 – Jun 2024

Oil, barrels lease total

Last 12 months 0 · prior 12 792(-100%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 565(-100%)

05001K202420252026

Chain of custody

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

  1. 1Hunt Oil CompanyMar 2014 → Jul 2021
  2. 2Vencer Energy, LLCAug 2021 → Dec 2023
  3. 3Civitas Permian Operating, LLCJan 2024 → Jun 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
773758-99DrillHunt Oil CompanyNov 13, 2013Dec 4, 2013Dec 20, 201316,750

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 12, 2014University 4-12 O-9-18481Spraberry (Trend Area)Civitas Permian Operating LLCProducing8,385

Formation tops

As filed on W-2/G-1. Subsea from 2,779 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryLOWER SPRABERRY7,401-4,622
Dean7,827-5,048
WolfcampWOLFCAMP A7,960-5,181
WolfcampWOLFCAMP B8,331-5,552

Perforations

Perforated and open-hole intervals.

FromToType
9,08416,423Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37578017.5855 S
9.6257,94612.25600 S
5.516,5518.752,360 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
00Jun 30, 2014Apr 28, 2014Yes

Well logs

2 logs loaded from the RRC's log index, the latest received Feb 15, 2017. Resistivity. 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
RESISTIVITYSpans Spraberry, Dean, WolfcampTIFF6,500 to 16,600Feb 15, 2017run Jan 4, 20132.12
RESISTIVITYSpans Spraberry, Dean, WolfcampTIFF5,000 to 16,600Feb 15, 20172.46

"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/46139172, documented in the API reference.