WELL · 42-439-30769 · DISTRICT 9
Langley #4
Tarrant County · Newark East (Barnett Shale) field · Producing · Horizontal
Langley #4 (API 42-439-30769) is a horizontal well in Tarrant County operated by Bkv North Texas LLC, completed August 8, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 16, 2003, permitted to 9,000 ft.
It was permitted by Four Sevens Operating CO., Ltd. and has since transferred to Bkv North Texas LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Pregnant Shale, Big Saline, Marble Falls, Comyn.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Four Sevens Operating Co., Ltd.; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Mar 4, 2026 · 22 permits on file · (835) 425-8677
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | BKV North Texas LLC |
| Production reports | BKV North Texas, LLCthrough Apr 2026 |
| Latest permit | Four Sevens Operating Co., Ltd.Dec 16, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 1
- permits on file
- Dec 16, 2003
- last permit issued
- Aug 8, 2025
- completed
- 0
- cumulative oil, bbl
- 2.12M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2004 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 8, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Langley G-13-203441 | Newark, East (Barnett Shale) | BKV North Texas, LLC | 1 | 0 | 2.12M | Jul 2004 – Jul 2026 |
Gas, mcf lease total
Last 12 months 91,732 · prior 12 35,971(+155%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Four Sevens Operating Co., Ltd.Jul 2004 → Jul 2004
- 2XTO Energy Inc.Aug 2004 → May 2022
- 3BKV North Texas, LLCJun 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 539754-99 | Drill | Four Sevens Operating Co., Ltd. | Dec 16, 2003 | Dec 16, 2003 | May 13, 2004 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-203441 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 729 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pregnant Shale | 3,468 | -2,739 |
| Big Saline | 5,356 | -4,627 |
| Marble Falls | 6,685 | -5,956 |
| Marble Falls | 6,695 | -5,966 |
| Comyn | 6,919 | -6,190 |
| Barnett | 6,977 | -6,248 |
| BarnettUPPER BARNETT | 7,058 | -6,329 |
| BarnettLOWER BARNETT | 7,171 | -6,442 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,083 | 9,153 | Perforated |
| 7,940 | 9,153 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,260 | 12.25 | 620 S |
| 5.5 | 9,181 | 8.75 | 500 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 | Mar 16, 2026 | Nov 15, 2025 | — |
| 00 | Nov 19, 2004 | Aug 30, 2004 | Yes |
| 00 | Sep 27, 2004 | — | — |
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 42-439-30769 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-439-30769 → 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/43930769, documented in the API reference.