TEXAS · WELLS · JOHNSON COUNTY · ISBELL LEASE · API 42-251-30332 · DISTRICT 7C

Isbell #1

Shut in

Johnson County · Newark East (Barnett Shale) field · Temp Abandoned  · Horizontal

Isbell #1 (API 42-251-30332) is a horizontal well in Johnson County operated by Formentera Operations LLC, completed November 2, 2005 and listed as temp abandoned on the RRC schedule, shut in July 1, 2023.

The RRC has issued one drilling permit, issued February 15, 2005, permitted to 7,291 ft.

It was permitted by Chief Oil & Gas LLC and has since transferred to Formentera Operations LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Smithwick, Marble Falls, Barnett.

Its lease has reported 3 barrels of oil and 2.01M mcf of gas since November 2005, last reporting volume in June 2023.

Operator of record

Formentera Operations LLC

Permitted by Chief Oil & Gas LLC; the EWA schedule now lists a different operator.

Based in
Austin, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 11, 2026
Permits on file
93
Phone
(512) 514-5779

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFormentera Operations LLC
Production reportsFormentera Operations LLCthrough Jun 2023
Latest permitChief Oil & Gas LLCFeb 15, 2005

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

7,291
total depth, ft
1
permits on file
Feb 15, 2005
last permit issued
Nov 2, 2005
completed
3
cumulative oil, bbl
2.01M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2005 THROUGH Jun 2023

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 2, 2005
Shut in
Jul 1, 2023
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.

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Isbell G-13-213876Newark, East (Barnett Shale)Formentera Operations LLC132.01MNov 2005 – Jun 2023

Gas, mcf lease total

Last 12 months 0 · prior 12 0

01K2K3K202420252026

Chain of custody

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

  1. 1Chief Oil & Gas LLC *Nov 2005 → Jun 2006
  2. 2Devon Energy Production Co, L.P.Jul 2006 → Apr 2018
  3. 3FDL Operating, LLCMay 2018 → Dec 2021
  4. 4Venado Operating Company LLCJan 2022 → Mar 2022
  5. 5Javelin Energy Partners Mgmt LLCApr 2022 → Jun 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
557771-99DrillChief Oil & Gas LLCFeb 15, 2005Feb 15, 2005Apr 26, 20058,900

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 2, 2005Isbell G-13-213876Newark East (Barnett Shale)Formentera Operations LLCTemp Abandoned · shut in Jul 1, 20237,291

Formation tops

As filed on W-2/G-1. Subsea from 862 ft elevation.Download CSV →

FormationMD ftSubsea
Smithwick4,333-3,471
Marble Falls6,590-5,728
BarnettBARNETT SHALE7,138-6,276

Perforations

Perforated and open-hole intervals.

FromToType
7,5469,670Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,41912.25675 S
5.59,7427.875680 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
00May 30, 2006Dec 7, 2005Yes
00Feb 13, 2006——

Well logs

The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.

Open the RRC's log search for this well ↗

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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/25130332, documented in the API reference.