TEXAS · WELLS · TERRY COUNTY · WARHORSE (CLEARFORK, UP.) UNIT LEASE · API 42-445-30610 · DISTRICT 7B

Warhorse (Clearfork Up.) Unit #4-A

Shut in

Terry County · Warhorse (Clearfork Up.) field · Shut In  · Vertical

Warhorse (Clearfork UP.) Unit #4-A (API 42-445-30610) is a former disposal or injection well in Terry County, last operated by Extex Operating Company; its UIC permit is no longer active.

The RRC has issued one drilling permit, issued November 30, 1977, permitted to 7,008 ft.

It was permitted by Texland-Rector & Schumacher and has since transferred to Extex Operating Company on the wellbore schedule.

Its lease has reported 694K barrels of oil and 122K mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 55 wells, so these are lease totals, not this well alone.

Operator of record

Extex Operating Company

Permitted by Texland-Rector & Schumacher; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jan 7, 2026
Permits on file
117
Phone
(713) 953-0824

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleExtex Operating Company
Production reportsExtex Operating Companythrough Apr 2026
Latest permitTexland-Rector & SchumacherNov 30, 1977

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

7,008
total depth, ft
1
permits on file
Nov 30, 1977
last permit issued
—
completed
694K
cumulative oil, bbl
122K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
—
Shut in
Feb 1, 2021
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Warhorse (Clearfork, Up.) Unit O-11-63485Warhorse (Clearfork, Up.)Extex Operating Company55694K122KJan 1993 – Apr 2026

Oil, barrels lease total

Last 12 months 2,572 · prior 12 3,357(-23%)

0200400202420252026

Wells named Warhorse (Clearfork Up.) Unit

Extex Operating Company's other wells filed under this lease name in Terry County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Texland-Rector & SchumacherJan 1993 → Sep 2000
  2. 2Scythian, Ltd.Oct 2000 → Apr 2006
  3. 3Endeavor Energy Resources L.P.May 2006 → Aug 2021
  4. 4Extex Operating CompanySep 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
13078-99DrillTexland-Rector & SchumacherNov 30, 1977Nov 30, 1977Dec 3, 19777,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—Warhorse (Clearfork Up.) Unit O-11-63485Warhorse (Clearfork Up.)Extex Operating CompanyShut In · shut in Feb 1, 20217,008
Jan 1, 1978Gulf-Coons -A- O-11-61822Warhorse (Clearfork Up.)Texland-Rector & SchumacherNot on Schedule—

Perforations

Perforated and open-hole intervals.

FromToType
—6,812Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,44912.251,000 S
4.57,0177.8751,240 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
00Jan 12, 1984Feb 17, 1978—
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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Aug 1994
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000063086H-1 InjectionNot activated6002,0006,624–6,870

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

Last 12 months 0 · prior 12 0

0119931994

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/44530610, documented in the API reference.