TEXAS · WELLS · ECTOR COUNTY · TXL NORTH UNIT LEASE · API 42-135-38024 · DISTRICT 7B
TXL North Unit #879
Ector County · TXL (Tubb) field · Injection · Vertical
Txl North Unit #879 (API 42-135-38024) is a well in Ector County operated by Formentera Operations LLC, completed March 21, 2002 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 2, 2001, permitted to 6,925 ft.
It was permitted by Anadarko Petroleum Corp. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 4 formation tops, including San Andres, Clear Fork, Tubb, Wichita-Albany.
Its lease has reported 13.9M barrels of oil and 40.3M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 496 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 78K barrels injected in the 12 months reported through October 2025.
Operator of record
Permitted by Anadarko Petroleum Corp.; 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 Corp.Mar 2, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,925
- total depth, ft
- 2
- permits on file
- Mar 2, 2001
- last permit issued
- Mar 21, 2002
- completed
- 13.9M
- cumulative oil, bbl
- 40.3M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 21, 2002
- 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 496 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| TXL North Unit O-10-20487 | TXL (Tubb) | Formentera Operations LLC | 496 | 13.9M | 40.3M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 91,054 · prior 12 102,642(-11%)
Gas, mcf lease total
Last 12 months 257,591 · prior 12 276,773(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Shell Western E&P Inc.Jan 1993 → Nov 1995
- 2Anadarko Petroleum CorporationDec 1995 → 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 |
|---|---|---|---|---|---|---|
| 506038-98 | Drill | Anadarko Petroleum Corp. | Mar 9, 2001 | Mar 2, 2001 | — | 7,000 |
| 506038-99 | Drill | Anadarko Petroleum Corp. | Mar 2, 2001 | Mar 2, 2001 | Mar 12, 2001 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 21, 2002 | TXL North Unit O-10-20487 | TXL (Tubb) | Formentera Operations LLC | Injection | 6,925 |
Formation tops
As filed on W-2/G-1. Subsea from 3,272 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,085 | -813 |
| Clear ForkUPPER CLEARFORK | 5,439 | -2,167 |
| TubbTUBB SILT | 5,932 | -2,660 |
| Clear ForkLOWER CLEARFORK | 5,997 | -2,725 |
| Wichita-Albany | 6,479 | -3,207 |
| Clear ForkLOWER CLEARFORK | — | — |
| San Andres | — | — |
| TubbTUBB SILT | — | — |
| Clear ForkUPPER CLEARFORK | — | — |
| Wichita-Albany | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,420 | 6,783 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,368 | 11 | 480 S |
| 5.5 | 3,899 | 7.875 | 1,100 S |
| 5.5 | 6,919 | 7.875 | 655 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 | Apr 20, 2011 | Dec 16, 2010 | — |
| 00 | Mar 26, 2002 | May 10, 2001 | Yes |
| 00 | Mar 1, 2002 | — | — |
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 42-135-38024 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-38024 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 78K
- bbl, last 12 reported months
- 1.13M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000092200 | H-1 Injection | Active | 2,000 | 2,650 | 5,300–6,873 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 78,017 · prior 12 16,846(+363%)
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/13538024, documented in the API reference.