WELL · 42-353-33650 · DISTRICT 7

Thunder Valley North #4

Y

Nolan County · Thunder Valley (Canyon Sand) field · Shut IN  · Directional

Thunder Valley North #4 (API 42-353-33650) is a well in Nolan County operated by Extex Operating Company, completed May 10, 2018 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued January 25, 2018, permitted to 7,499 ft.

It was permitted by Cholla Petroleum, Inc. and has since transferred to Extex Operating Company on the wellbore schedule.

Completion filings report 10 formation tops, including Elm Creek - Disposal, Wolfcamp, Coleman Junction, Noodle Creek - Disposal.

Its lease has reported 48.9K barrels of oil and 45.5K mcf of gas since April 2018, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Extex Operating Company

Permitted by Cholla Petroleum, Inc.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Nov 4, 2025 · 117 permits on file · (713) 870-4327

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleExtex Operating Company
Production reportsExtex Operating Companythrough Mar 2026
Latest permitCholla Petroleum, Inc.Jan 25, 2018

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

7,499
total depth, ft
1
permits on file
Jan 25, 2018
last permit issued
May 10, 2018
completed
48.9K
cumulative oil, bbl
45.5K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 10, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

32.496370, -100.634015

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Nolan 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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Thunder Valley North O-8-32272Thunder Valley (Canyon Sand)Extex Operating Company448.9K45.5KApr 2018 – Jul 2026

Oil, barrels lease total

Last 12 months 2,276 · prior 12 2,946(-23%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 395(-100%)

0200400600202420252026

Chain of custody

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

  1. 1Cholla Petroleum, Inc.Apr 2018 → Feb 2026
  2. 2Extex Operating CompanyMar 2026 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
835245-99DrillCholla Petroleum, Inc.Jan 16, 2018Jan 25, 2018Mar 16, 20187,499

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-8-32272————

Formation tops

As filed on W-2/G-1. Subsea from 2,373 ft elevation.Download CSV →

FormationMD ftSubsea
Elm Creek - Disposal2,548-175
WolfcampWOLFCAMP - DISPOSAL2,713-340
Coleman JunctionCOLEMAN JUNCTION - CORROSIVE; PO3,093-720
Noodle Creek - Disposal3,398-1,025
Breckenridge - Disposal4,108-1,735
Flippen Lime - Disposal——
Flippen Sand - Disposal——
King Sand - Disposal——
TannehillTANNEHILL - DISPOSAL——
Wichita-AlbanyWICHITA ALBANY - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
6,9706,976Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37539117.5430 S
8.6251,50712.25500 S
5.57,0727.875200 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 9, 2018May 22, 2018Yes

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 →

Thunder Valley RR Unit42-353-33648

0.0 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,570-197
Wolfcamp2,740-367
Coleman Junction3,125-752
Noodle Creek - Disposal3,430-1,057
Breckenridge - Disposal4,140-1,767
Flippen Sand - Disposal—
Flippen Lime - Disposal—
Wichita-Albany—

10 TOPS · FIRST 8

Thunder Valley North42-353-33676

0.3 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,547-163
Wolfcamp2,710-326
Coleman Junction3,090-706
Noodle Creek - Disposal3,395-1,011
Breckenridge - Disposal4,005-1,621
Flippen Lime - Disposal—
Wichita-Albany—
Tannehill—

10 TOPS · FIRST 8

Thunder Valley North Unit42-353-33633

0.4 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,620-259
Wolfcamp2,770-409
Coleman Junction3,120-759
Noodle Creek - Disposal3,420-1,059
Breckenridge - Disposal4,220-1,859
King Sand - Disposal—
Flippen Lime - Disposal—
Flippen Sand - Disposal—

10 TOPS · FIRST 8

Thunder Valley North42-353-33644

0.4 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,550-189
Wolfcamp2,715-354
Coleman Junction3,095-734
Noodle Creek - Disposal3,400-1,039
Breckenridge - Disposal4,200-1,839
Flippen Sand - Disposal—
Wichita-Albany—
Tannehill—

10 TOPS · FIRST 8

Thunder Valley North42-353-33664

0.5 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,550-171
Wolfcamp2,715-336
Coleman Junction3,095-716
Noodle Creek - Disposal3,400-1,021
Breckenridge - Disposal4,110-1,731
Canyon7,010-4,631
Flippen Sand - Disposal—
Flippen Lime - Disposal—

10 TOPS · FIRST 8

Thunder Valley NW Unit42-353-33649

0.6 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,620-233
Wolfcamp2,770-383
Coleman Junction3,120-733
Noodle Creek - Disposal3,420-1,033
Breckenridge - Disposal4,220-1,833
Tannehill—
Wichita-Albany—
King Sand - Disposal—

10 TOPS · FIRST 8

Thunder Valley North42-353-33682

0.9 KM · Cholla Petroleum, Inc. · Section with this well →

Wolfcamp2,960-573
Coleman Junction3,195-808
Noodle Creek - Disposal3,398-1,011
Breckenridge - Disposal4,008-1,621
Wichita-Albany—
King Sand - Disposal—
Flippen Sand - Disposal—
Tannehill—

10 TOPS · FIRST 8

Thunder Valley West42-353-33639

1.2 KM · Cholla Petroleum, Inc. · Section with this well →

Elm Creek - Disposal2,655-266
Wolfcamp2,815-426
Coleman Junction3,161-772
Noodle Creek - Disposal3,453-1,064
Breckenridge - Disposal4,247-1,858
King Sand - Disposal—
Tannehill—
Wichita-Albany—

10 TOPS · FIRST 8

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/35333650, documented in the API reference.