WELL · 42-439-35138 · DISTRICT 9
Benbrook Unit a Fed #4H
Tarrant County · Newark East (Barnett Shale) field · Producing · Horizontal
Benbrook Unit A Fed #4H (API 42-439-35138) is a horizontal well in Tarrant County operated by Formentera Operations LLC, completed February 10, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 18, 2010, permitted to 6,782 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Marble Falls, Barnett.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Devon Energy Production Co, L.P.; 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
- 90
- Phone
- (512) 514-5779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Formentera Operations LLC |
| Production reports | Formentera Operations LLCthrough Apr 2026 |
| Latest permit | Devon Energy Production Co, L.P.May 18, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,782
- total depth, ft
- 1
- permits on file
- May 18, 2010
- last permit issued
- Feb 10, 2012
- completed
- 0
- cumulative oil, bbl
- 3.24M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 10, 2012
- 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.
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Benbrook Unit "a" Fed G-13-263443 | Newark, East (Barnett Shale) | Formentera Operations LLC | 1 | 0 | 3.24M | Sep 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 102,086 · prior 12 119,475(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Feb 2012 → Apr 2018
- 2FDL Operating, LLCMay 2018 → Dec 2021
- 3Venado Operating Company LLCJan 2022 → Mar 2022
- 4Javelin Energy Partners Mgmt LLCApr 2022 → Nov 2025
- 5Formentera Operations LLCDec 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 695881-99 | Drill | Devon Energy Production Co, L.P. | May 12, 2010 | May 18, 2010 | Aug 23, 2011 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 10, 2012 | Benbrook Unit a Fed G-13-263443 | Newark East (Barnett Shale) | Formentera Operations LLC | Producing | 6,782 |
Formation tops
As filed on W-2/G-1. Subsea from 768 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble Falls | 6,398 | -5,630 |
| BarnettUPPER BARNETT SHALE | 6,601 | -5,833 |
| BarnettLOWER BARNETT SHALE | 6,686 | -5,918 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,513 | 7,900 | Perforated |
| 8,025 | 8,412 | Perforated |
| 8,537 | 8,924 | Perforated |
| 9,049 | 9,436 | Perforated |
| 9,561 | 9,948 | Perforated |
| 10,073 | 10,460 | Perforated |
| 10,585 | 10,972 | Perforated |
| 11,097 | 11,484 | Perforated |
| 11,609 | 11,996 | Perforated |
| 12,121 | 12,508 | Perforated |
| 12,633 | 13,020 | Perforated |
| 13,145 | 13,532 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,049 | 12.25 | 410 S |
| 5.5 | 13,655 | 8.5 | 1,820 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 19, 2012 | May 15, 2012 | — |
| 00 | May 16, 2012 | Jan 16, 2012 | Yes |
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.
- Wellbore filings for 42-439-35138 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-439-35138 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/43935138, documented in the API reference.