TEXAS · WELLS · ECTOR COUNTY · TXL SOUTH UNIT LEASE · API 42-135-39137 · DISTRICT 7B
TXL South Unit #3610
Ector County · TXL (Tubb) field · Producing · Vertical
Txl South Unit #3610 (API 42-135-39137) is a well in Ector County operated by Formentera Operations LLC, completed September 13, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 22, 2006, permitted to 6,587 ft.
It was permitted by Anadarko Petroleum Corporation and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 8 formation tops, including T/Anhydrite & B/Redbed, Base Of Salt, Yates, San Andres.
Its lease has reported 21.3M barrels of oil and 42.2M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 718 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Anadarko Petroleum Corporation; 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 | Anadarko Petroleum CorporationJun 22, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,587
- total depth, ft
- 1
- permits on file
- Jun 22, 2006
- last permit issued
- Sep 13, 2006
- completed
- 21.3M
- cumulative oil, bbl
- 42.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 13, 2006
- 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; they carry 718 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| TXL South Unit O-10-20726 | TXL (Tubb) | Formentera Operations LLC | 718 | 21.3M | 42.2M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 216,883 · prior 12 248,228(-13%)
Gas, mcf lease total
Last 12 months 284,726 · prior 12 342,019(-17%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Oct 1994
- 2Anadarko Petroleum CorporationNov 1994 → Mar 2007
- 3Apache CorporationApr 2007 → Jun 2021
- 4Slant Operating, LLCJul 2021 → Oct 2023
- 5Formentera Operations LLCNov 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 621417-99 | Drill | Anadarko Petroleum Corporation | Jun 21, 2006 | Jun 22, 2006 | Aug 7, 2006 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 13, 2006 | TXL South Unit O-10-20726 | TXL (Tubb) | Formentera Operations LLC | Producing | 6,587 |
Formation tops
As filed on W-2/G-1. Subsea from 3,115 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Anhydrite & B/Redbed | 1,273 | 1,842 |
| Base of Salt | 2,568 | 547 |
| Yates | 2,568 | 547 |
| San Andres | 3,983 | -868 |
| Goldsmith (5600) | 5,324 | -2,209 |
| Goldsmith (5600) Pay | 5,324 | -2,209 |
| Clear ForkBASE OF CLEARFORK-TUBB | 6,440 | -3,325 |
| Base of Clfk-Tubb Pay | 6,440 | -3,325 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,356 | 6,435 | Perforated |
| 5,356 | 6,457 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,266 | 11 | 430 S |
| 4.5 | 6,575 | 7.875 | 1,420 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 10, 2009 | Apr 23, 2009 | — |
| 00 | Mar 30, 2007 | Oct 11, 2006 | Yes |
| 00 | Dec 7, 2006 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 23, 2007. Cased hole, Gamma ray, Neutron. 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 described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Neutron PorosityGAMMA RAY CCL COMPENSATED NEUTRONSpans San Andres, Goldsmith (5600), Goldsmith (5600) Pay, Base Of Clfk-Tubb Pay, Clear Fork | TIFF | 5,000 to 6,540 | Apr 23, 2007run Aug 21, 2006 | — |
"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.
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 42-135-39137 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-39137 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/13539137, documented in the API reference.