WELL · 42-439-31800 · DISTRICT 9
Tadlock Margaret #6H
Tarrant County · Newark East (Barnett Shale) field · Producing · Horizontal
Tadlock Margaret #6H (API 42-439-31800) is a horizontal well in Tarrant County operated by Bkv Barnett LLC, completed November 17, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 1, 2006, permitted to 9,000 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Bkv Barnett LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Marble Falls, Barnett, Forestberg.
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.
Fort Worth, TX · P-5 Y, filed Jan 4, 2026 · 143 permits on file · (833) 425-8677
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | BKV Barnett LLC |
| Production reports | BKV Barnett, LLCthrough Apr 2026 |
| Latest permit | Devon Energy Production Co, L.P.Nov 1, 2006 |
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
- Nov 1, 2006
- last permit issued
- Nov 17, 2025
- completed
- 0
- cumulative oil, bbl
- 1.68M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 17, 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 |
|---|---|---|---|---|---|---|
| Tadlock, Margaret G-13-231121 | Newark, East (Barnett Shale) | BKV Barnett, LLC | 1 | 0 | 1.68M | May 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 118,693 · prior 12 62,147(+91%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.May 2007 → Sep 2020
- 2BKV Barnett, LLCOct 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 627955-99 | Drill | Devon Energy Production Co, L.P. | Oct 23, 2006 | Nov 1, 2006 | Dec 31, 2006 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-231121 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 863 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble Falls | 6,689 | -5,826 |
| BarnettUPPER BARNETT SHALE | 7,025 | -6,162 |
| Forestberg | 7,178 | -6,315 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,110 | 9,870 | Perforated |
| 7,361 | 7,440 | Perforated |
| 8,246 | 8,250 | Perforated |
| 9,056 | 9,060 | Perforated |
| 9,866 | 9,870 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,254 | 12.25 | 520 S |
| 5.5 | 9,940 | 8.5 | 1,220 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 | Jun 18, 2026 | Dec 11, 2025 | — |
| 00 | Jan 23, 2008 | Jun 22, 2007 | Yes |
| 00 | Dec 4, 2007 | — | — |
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 42-439-31800 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-439-31800 → 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/43931800, documented in the API reference.