WELL · 42-389-32979 · DISTRICT 8

Terrill State #4

Shut in

Reeves County · Wolfbone (Trend Area) field · Shut IN  · Vertical

Terrill State #4 (API 42-389-32979) is a well in Reeves County operated by Apache Corporation, completed April 15, 2012 and listed as shut in on the RRC schedule, shut in August 1, 2023.

The RRC has issued one drilling permit, issued August 30, 2011, permitted to 12,180 ft.

It was permitted by Thompson, J. Cleo and has since transferred to Apache Corporation on the wellbore schedule.

Completion filings report 3 formation tops, including Brushy Canyon, Bone Spring, Wolfcamp.

Its lease has reported 309K barrels of oil and 407K mcf of gas since December 2010, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Apache Corporation

Permitted by Thompson, J. Cleo; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Dec 3, 2025
Permits on file
9,756
Phone
(713) 954-5500

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleApache Corporation
Production reportsCallon Petroleum Operating Cothrough Jun 2023
Latest permitThompson, J. CleoAug 30, 2011

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

12,180
total depth, ft
1
permits on file
Aug 30, 2011
last permit issued
Apr 15, 2012
completed
309K
cumulative oil, bbl
407K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 15, 2012
Shut in
Aug 1, 2023
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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Terrill State O-10-40674Wolfbone (Trend Area)Apache Corporation4309K407KDec 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 0

0123202420252026

Chain of custody

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

  1. 1Thompson, J. CleoDec 2010 → Mar 2013
  2. 2OXY USA WTP LPApr 2013 → Mar 2018
  3. 3Primexx Operating CorporationApr 2018 → Sep 2021
  4. 4Callon Petroleum Operating CoOct 2021 → Jun 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
722855-99DrillThompson, J. CleoAug 22, 2011Aug 30, 2011Sep 17, 201113,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 15, 2012Terrill State O-10-40674Wolfbone (Trend Area)Apache CorporationShut IN · shut in Aug 1, 202312,180

Formation tops

As filed on W-2/G-1. Subsea from 2,637 ft elevation.Download CSV →

FormationMD ftSubsea
Brushy Canyon6,927-4,290
Bone SpringBONE SPRINGS7,964-5,327
Bone Spring2ND BONE SPRINGS9,483-6,846
Bone Spring3RD BONE SPRINGS10,096-7,459
Wolfcamp10,318-7,681

Perforations

Perforated and open-hole intervals.

FromToType
8,50811,869Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37554317.5500 S
8.6255,48311900 S
5.512,1807.8751,200 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
00May 17, 2013May 8, 2012—
00May 10, 2013Mar 13, 2012Yes

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.

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/38932979, documented in the API reference.