WELL · 42-105-37507 · DISTRICT 7

University Block 42 #0121CH

N

Crockett County · Redemption (Ellenburger) field  · Horizontal

University Block 42 #0121CH (API 42-105-37507) is a horizontal well in Crockett County operated by Eog Resources Inc., completed February 27, 1997.

The RRC has issued 2 drilling permits (amended once) between 1996 and 2011, permitted to 8,500 ft.

Completion filings report 6 formation tops, including Base Cretaceous (marker), Cretaceous Base, Wolfcamp, Canyon.

Its 4 leases have reported 26.3K barrels of oil and 1M mcf of gas since February 1997, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.

Operator of record

EOG Resources Inc.

Midland, TX · P-5 Y, filed Jul 4, 2026 · 16,348 permits on file · (713) 594-5431

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleEOG Resources Inc.
Production reportsEOG Resources, Inc.through Apr 2026
Latest permitEOG Resources, Inc.May 6, 2011
8,500
total depth, ft
3
permits on file
May 6, 2011
last permit issued
Feb 27, 1997
completed
26.3K
cumulative oil, bbl
1M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 1997 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 27, 1997
Shut in
—
Plugged
—

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 4 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
University Block 42 O-9-17552Holt Ranch (Consolidated)EOG Resources, Inc.119.1K898KMar 2011 – Jul 2026
University Block 42 G-9-225740Redemption (Ellenburger)EOG Resources, Inc.1018.3KFeb 2007 – Apr 2011
University Block 42 O-9-14693Redemption (Ellenburger)EOG Resources, Inc.17.15K75.7KOct 1997 – Jun 2007
University Block 42 G-9-163253Redemption (Ellenburger)Burlington Resources Oil&gas Co.109.28KFeb 1997 – Feb 1998

Gas, mcf lease total

Last 12 months 16,494 · prior 12 23,752(-31%)

01K2K3K202420252026

Oil, barrels lease total

Last 12 months 261 · prior 12 463(-44%)

050100202420252026

Chain of custody

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

  1. 1Burlington Resources Oil&gas Co.Apr 1997 → Dec 2000
  2. 2Burlington Resources O & G Co LPJan 2001 → May 2001
  3. 3EOG Resources, Inc.Jun 2001 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
715617-99RecompletionEOG Resources, Inc.May 4, 2011May 6, 2011Jan 30, 20118,041
456555-98DrillBurlington Resources Oil&gas Co.Jan 16, 1997Dec 20, 1996Jan 24, 19978,500
456555-99DrillBurlington Resources Oil&gas Co.Dec 20, 1996Dec 20, 1996—8,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-9-163253————
—— G-9-225740————
—— O-9-14693————
—— O-9-17552————

Formation tops

As filed on W-2/G-1. Subsea from 2,569 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE OF CRETACEOUS5462,023
Cretaceous Base5462,023
Wolfcamp5,460-2,891
Canyon6,190-3,621
Ellenburger8,391-5,822
EllenburgerELLENBURGER TOP8,391-5,822
Top of Ellen.8,391-5,822

Perforations

Perforated and open-hole intervals.

FromToType
7,7207,770Perforated
8,59810,720Perforated
8,59810,720Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,03512.25975 S
78,5988.75900 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
00Aug 14, 2012May 16, 2011—
00May 23, 2007Mar 8, 2007—
00Apr 2, 2007——
00Feb 5, 1998Nov 4, 1997—
00Dec 23, 1997——
00Jul 23, 1997Apr 29, 1997Yes
00Jul 1, 1997——

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/10537507, documented in the API reference.