WELL · 42-435-39374 · DISTRICT 7

Schwienning #321

N

Sutton County  · Vertical

Schwienning #321 (API 42-435-39374) is a permitted well in Sutton County filed by Mextex Operating Company; no completion report is on file yet.

The RRC has issued 2 drilling permits between 2011 and 2019, permitted to 3,999 ft.

Completion filings report 3 formation tops, including Cisco, Canyon, Strawn.

Its lease has reported 559K barrels of oil and 146K mcf of gas since January 1993, last reporting in July 2026. The lease carries 71 wells, so these are lease totals, not this well alone.

Operator of record

Mextex Operating Company

Austin, TX · P-5 Y, filed Apr 4, 2026 · 84 permits on file · (512) 923-8485

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsRocking R Investments, Inc.through Apr 2026
Latest permitMextex Operating CompanyNov 25, 2019
3,999
total depth, ft
2
permits on file
Nov 25, 2019
last permit issued
—
completed
559K
cumulative oil, bbl
146K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

30.500636, -100.150880

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Sutton 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 71 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Ft. Terrett Ranch /Canyon LM/ U. O-9-5803Fort Terrett Ranch (Canyon 2800)Rocking R Investments, Inc.71559K146KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 4,567 · prior 12 7,834(-42%)

05001K202420252026

Gas, mcf lease total

Last 12 months 2,853 · prior 12 2,751(+4%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Okie Crude CompanyJan 1993 → Oct 1993
  2. 2Okie Crude Company I, Ltd.Nov 1993 → Mar 1994
  3. 3Whiting Petroleum CorporationApr 1994 → Oct 1995
  4. 4Okie Operating Company, Ltd.Nov 1995 → Nov 1998
  5. 5Setex Oil and Gas CompanyDec 1998 → Jun 2004
  6. 6O.G.P. Operating, Inc.Jul 2004 → Jun 2006
  7. 7Mextex Operating CompanyJul 2006 → Jul 2020
  8. 8Rocking R Investments, Inc.Aug 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
859047-99RecompletionMextex Operating CompanyNov 12, 2019Nov 25, 2019—3,127
729051-99DrillMextex Operating CompanyNov 29, 2011Dec 1, 2011Jan 2, 20123,999

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-5803————

Formation tops

As filed on W-2/G-1. Subsea from 2,189 ft elevation.Download CSV →

FormationMD ftSubsea
Cisco2,11277
CanyonCANYON SAND2,302-113
Cisco2,712-523
CanyonCANYON 28002,742-553
CanyonCANYON 2800 LIME2,742-553
CanyonCANYON SAND2,800-611
StrawnSTRAWN 30002,953-764

Perforations

Perforated and open-hole intervals.

FromToType
2,7622,780Perforated
2,7622,885Perforated
2,7622,895Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62544811260 S
5.53,0607.875290 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 2, 2025Aug 29, 2025—
00Jul 2, 2020Oct 22, 2019—
00Jun 29, 2020May 22, 2020—
00May 23, 2013May 22, 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). 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 →

Ft. Terrett Ranch /Canyon LM/ U.42-435-39415

0.9 KM · Rocking R Investments, Inc. · Section with this well →

Leonard1,800351
Wolfcamp2,600-449
Canyon2,731-580
Pennsylvanian—
Strawn—

FT Terrett Ranch/Canyon LM/U.42-435-39384

1.0 KM · Rocking R Investments, Inc. · Section with this well →

Leonard1,800427
Cisco2,111116
Canyon2,406-179
Wolfcamp2,600-373
Canyon2,660-433
Canyon2,792-565
Canyon—
Pennsylvanian—

9 TOPS · FIRST 8

Ft. Terrett Ranch/Canyon LM/ U.42-435-39429

1.6 KM · Rocking R Investments, Inc. · Section with this well →

Canyon—
Leonard—
Pennsylvanian—
Strawn—
Wolfcamp—

Henry, III42-435-39417

1.7 KM · Rocking R Investments, Inc. · Section with this well →

Strawn—
Canyon—
Leonard—
Pennsylvanian—
Wolfcamp—

Henry, III42-435-39418

1.7 KM · Rocking R Investments, Inc. · Section with this well →

Canyon—
Wolfcamp—
Strawn—
Pennsylvanian—
Leonard—

Ft. Terrett Ranch /Canyon LM/ U.42-435-39419

1.7 KM · Rocking R Investments, Inc. · Section with this well →

Leonard1,800334
Wolfcamp2,600-466
Canyon2,846-712
Pennsylvanian—
Strawn—

Adams, P.E. & J.E42-435-39416

2.7 KM · Rocking R Investments, Inc. · Section with this well →

Leonard1,800316
Wolfcamp2,600-484
Canyon2,744-628
Strawn—
Pennsylvanian—

Adams, P.E. & J.E.42-435-39414

2.9 KM · Rocking R Investments, Inc. · Section with this well →

Leonard1,800274
Wolfcamp2,600-526
Canyon2,706-632
Strawn—
Pennsylvanian—

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/43539374, documented in the API reference.