TEXAS · WELLS · LA SALLE COUNTY · VESTER B UNIT LEASE · API 42-283-32670 · DISTRICT 01

Vester B Unit #11H

On schedule

La Salle County · Hawkville (Eagleford Shale) field · Producing  · Horizontal

Fields on the latest permit · any of 2
Eagleville (Eagle Ford-1) · Hawkville (Eagleford Shale)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Vester B Unit #11H (API 42-283-32670) is a horizontal well in La Salle County operated by Verdun Oil EF II LLC, completed December 21, 2011 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended twice), issued June 22, 2011, permitted to 9,230 ft.

It was permitted by Carrizo Oil & Gas, Inc. and has since transferred to Verdun Oil EF II LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Base Of Carrizio, Carrizo, Austin Chalk, Eagle Ford.

Its lease has reported 61.3K barrels of oil and 571K mcf of gas since November 2011, last reporting volume in August 2026.

Operator of record

Verdun Oil EF II LLC

Permitted by Carrizo Oil & Gas, Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jan 26, 2026
Permits on file
48
Phone
(713) 337-9300

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleVerdun Oil EF II LLC
Production reportsVerdun Oil EF II LLCthrough Apr 2026
Latest permitCarrizo Oil & Gas, Inc.Jun 22, 2011

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

9,230
total depth, ft
3
permits on file
Jun 22, 2011
last permit issued
Dec 21, 2011
completed
61.3K
cumulative oil, bbl
571K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · FEB 2012 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 21, 2011
Shut in
—
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 AUG 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Vester B Unit G-1-265595Hawkville (Eagleford Shale)Verdun Oil EF II LLC161.3K571KNov 2011 – Aug 2026

Gas, mcf lease total

Last 12 months 12,764 · prior 12 15,568(-18%)

02K4K6K202420252026

Wells named Vester B Unit

Verdun Oil EF II LLC's other wells filed under this lease name in La Salle 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. 1Carrizo (Eagle Ford) LLCFeb 2012 → Jan 2018
  2. 2EP Energy E&P Company, L.P.Feb 2018 → Apr 2022
  3. 3EP Energy E&P Company, LLCMay 2022 → Feb 2025
  4. 4Verdun Oil EF II LLCMar 2025 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
718732-97DrillCarrizo Oil & Gas, Inc.Mar 22, 2012Jun 22, 2011Dec 21, 201111,000
718732-98DrillCarrizo Oil & Gas, Inc.Feb 14, 2012Jun 22, 2011Oct 18, 201111,000
718732-99DrillCarrizo Oil & Gas, Inc.Jun 20, 2011Jun 22, 2011Oct 18, 201111,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 21, 2011Vester B Unit G-1-265595Hawkville (Eagleford Shale)Verdun Oil EF II LLCProducing9,230

Formation tops

As filed on W-2/G-1. Subsea from 545 ft elevation.Download CSV →

FormationMD ftSubsea
Base of Carrizio3,200-2,655
CarrizoBASE OF CARRIZO3,200-2,655
Austin Chalk8,504-7,959
Eagle Ford8,888-8,343

Perforations

Perforated and open-hole intervals.

FromToType
9,66014,183Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.753,29214.751,645 S
5.514,3058.752,478 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 8, 2013May 10, 2012Yes
00Dec 20, 2012Apr 30, 2012Yes

Well logs

1 log loaded from the RRC's log index, the latest received Jun 27, 2013. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Base Of Carrizio, Carrizo, Austin Chalk, Eagle FordTIFF6,600 to 14,305Jun 27, 2013run Nov 4, 20112.10

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

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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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/28332670, documented in the API reference.