WELL · 42-445-00236 · DISTRICT 8

Prentice Northeast Unit #81A

Y

Terry County · Prentice (6700) field · Producing  · Vertical

Prentice Northeast Unit #81A (API 42-445-00236) is a well in Terry County operated by Highmark Energy Operating LLC, completed January 29, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued September 11, 2017, permitted to 6,950 ft.

It was permitted by Xto Energy Inc. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including San Andres, Glorieta, Clear Fork.

Its lease has reported 27.6M barrels of oil and 6.52M mcf of gas since January 1993, last reporting in July 2026. The lease carries 621 wells, so these are lease totals, not this well alone.

Operator of record

Highmark Energy Operating LLC

Permitted by XTO Energy Inc.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 23 permits on file · (903) 876-2591

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHighmark Energy Operating LLC
Production reportsHighmark Energy Operating, LLCthrough Apr 2026
Latest permitXTO Energy Inc.Sep 11, 2017

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

6,950
total depth, ft
1
permits on file
Sep 11, 2017
last permit issued
Jan 29, 2021
completed
27.6M
cumulative oil, bbl
6.52M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 29, 2021
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

33.282931, -102.562827

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Terry County.

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Prentice Northeast Unit O-11-18607Prentice (6700)Highmark Energy Operating, LLC62127.6M6.52MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 320,398 · prior 12 335,299(-4%)

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 98,957 · prior 12 96,724(+2%)

05K10K202420252026

Chain of custody

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

  1. 1Amoco Production CompanyJan 1993 → Dec 1993
  2. 2Cross Timbers Operating CompanyJan 1994 → May 2001
  3. 3XTO Energy Inc.Jun 2001 → Dec 2021
  4. 4Highmark Energy Operating, LLCJan 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
830478-99ReclassXTO Energy Inc.Aug 30, 2017Sep 11, 2017Aug 10, 20176,950

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-11-18607————

Formation tops

As filed on W-2/G-1. Subsea from 3,512 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,473-961
Glorieta5,858-2,346
Clear ForkCLEARFORK6,113-2,601

Perforations

Perforated and open-hole intervals.

FromToType
6,5206,630Perforated
6,5206,818Perforated
6,6546,744Perforated
6,7756,819Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,44912.251,200 S
8.6252,449—1,400 S
5.56,9507.875350 S
5.56,950—350 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
00Feb 25, 2021Feb 16, 2021—
00Dec 14, 2017Aug 30, 2017—
00Jan 13, 1986Dec 31, 1985—
00Jan 12, 1984——

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 →

Brit Clare42-445-31972

0.1 KM · Great Western Drlg. Co. · Section with this well →

Rustler2,4501,082
Yates3,150382
Seven Rivers3,320212

Brit Clare42-445-32297

0.2 KM · Great Western Drilling Company · Section with this well →

Rustler2,4301,102
Yates3,152380
San Andres4,480-948
Glorieta6,006-2,474
Glorieta6,006-2,474
Tubb7,210-3,678

Clare, Brit42-445-31981

0.3 KM · Great Western Drlg. Co. · Section with this well →

Ructler2,4431,101
Rustler2,4431,101
Yates3,155389
Seven Rivers3,328216
San Andres4,540-996

Brit Clare42-445-32498

0.3 KM · Basin Oil & Gas Operating, LLC · Section with this well →

Yates3,157360
San Andres4,510-993
Glorieta5,899-2,382
Clear Fork6,123-2,606
Spraberry—
Abo—
Strawn—
Wolfcamp—

10 TOPS · FIRST 8

Covington, Ella 'B'42-445-31398

0.4 KM · XTO Energy Inc. · Section with this well →

Rustler2,4051,121
Rustler2,4051,121
Yates3,123403
San Andres4,508-982
San Andres5,201-1,675
Glorieta5,910-2,384
Glorieta5,910-2,384
U. Clearfork6,495-2,969

13 TOPS · FIRST 8

Brit Clare42-445-32484

0.4 KM · Basin Oil & Gas Operating, LLC · Section with this well →

Santa Rosa2,0531,482
Rustler2,4511,084
Yates3,174361
Seven Rivers3,417118
Queen4,005-470
Grayburg4,328-793
San Andres4,522-987
San Andres5,236-1,701

12 TOPS · FIRST 8

Brit Clare42-445-32290

0.5 KM · Great Western Drilling Company · Section with this well →

Rustler2,4701,063
Yates3,190343
Tubb7,330-3,797
Clear Fork7,356-3,823

Brit Clare42-445-32274

0.6 KM · Great Western Drilling Company · Section with this well →

Rustrler2,3451,185
Ruslter2,3451,185
San Andres4,505-975
San Andres4,505-975
Glorieta6,000-2,470
Glorieta6,000-2,470
Clear Fork6,600-3,070
Clear Fork6,600-3,070

18 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

84.3K
bbl, last 12 reported months
4.55M
bbl, all reported
Nov 2016
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000056882H-1 InjectionCanceled Aug 30, 20172,5002,8005,750–7,300

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

Last 12 months 84,268 · prior 12 97,279(-13%)

05K10K15K20152016

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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/44500236, documented in the API reference.