WELL · 42-383-39450 · DISTRICT 7

University 27-34 #1D

Y

Reagan County · Lin (Wolfcamp) field · Injection  · Vertical

University 27-34 #1D (API 42-383-39450) is a well in Reagan County operated by Sem Operating Company LLC, completed November 10, 2015 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued July 28, 2015, permitted to 4,650 ft.

It was permitted by Callon Petroleum Operating CO and has since transferred to Sem Operating Company LLC on the wellbore schedule.

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

Its lease has reported 2.17M barrels of oil and 6.31M mcf of gas since September 2014, last reporting in July 2026. The lease carries 13 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 4.42M barrels injected in the 12 months reported through December 2025.

Operator of record

Sem Operating Company LLC

Permitted by Callon Petroleum Operating Co; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Apr 4, 2026 · 404 permits on file · (877) 447-2289

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSem Operating Company LLC
Production reportsSem Operating Company LLCthrough Apr 2026
Latest permitCallon Petroleum Operating CoJul 28, 2015

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

4,650
total depth, ft
1
permits on file
Jul 28, 2015
last permit issued
Nov 10, 2015
completed
2.17M
cumulative oil, bbl
6.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 10, 2015
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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 13 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University 27-34 O-9-18756Lin (Wolfcamp)Sem Operating Company LLC132.17M6.31MSep 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 272,666 · prior 12 477,779(-43%)

050K100K202420252026

Gas, mcf lease total

Last 12 months 1,138,439 · prior 12 1,280,971(-11%)

050K100K150K202420252026

Chain of custody

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

  1. 1Callon Petroleum Operating CoDec 2014 → May 2019
  2. 2Sem Operating Company LLCJun 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
808546-99DrillCallon Petroleum Operating CoJul 17, 2015Jul 28, 2015Oct 14, 20154,650

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-18756————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Santa Rosa395
Yates2,000
Seven Rivers2,235
Queen2,950
Grayburg3,350
San AndresSAN ANDRES - SALTWATER FLOW, POS3,450
Clear ForkCLEARFORK—
Fusselman—
Spraberry—
Strawn—

Perforations

Perforated and open-hole intervals.

FromToType
3,4754,650Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37554917.252,230 S
13.37554917.52,230 S
9.6251,09912.25290 S
73,4758.75445 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
00Oct 21, 2024May 29, 2024—
00Dec 28, 2015Dec 17, 2015—

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) and the University Lands library. then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

4.42M
bbl, last 12 reported months
14.7M
bbl, all reported
Dec 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000112725W-14 DisposalActive30,0001,7253,450–4,650

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 4,418,865 · prior 12 4,024,733(+10%)

0200K400K600K20242025

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/38339450, documented in the API reference.