TEXAS · WELLS · WISE COUNTY · WCCO 4 LEASE · API 42-497-35558 · DISTRICT 7C
Wcco 4 #12
Wise County · Newark East (Barnett Shale) field · Producing · Directional
Wcco 4 #12 (API 42-497-35558) is a well in Wise County operated by Bkv Barnett LLC, completed October 25, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 16, 2004, permitted to 7,860 ft.
It was permitted by Devon Energy Operating 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, Ordovician.
Its lease has reported 757 barrels of oil and 595K mcf of gas since December 2004, last reporting volume in April 2026.
Operator of record
Permitted by Devon Energy Operating Co., L.P.; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 11, 2026
- Permits on file
- 143
- Phone
- (940) 394-2000
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 Operating Co., L.P.Mar 16, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,860
- total depth, ft
- 1
- permits on file
- Mar 16, 2004
- last permit issued
- Oct 25, 2022
- completed
- 757
- cumulative oil, bbl
- 595K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2004 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 25, 2022
- 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 |
|---|---|---|---|---|---|---|
| Wcco 4 G-13-206799 | Newark, East (Barnett Shale) | BKV Barnett, LLC | 1 | 757 | 595K | Dec 2004 – Apr 2026 |
Gas, mcf lease total
Last 12 months 10,743 · prior 12 12,301(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Dec 2004 → Sep 2020
- 2BKV Barnett, LLCOct 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 543299-99 | Drill | Devon Energy Operating Co., L.P. | Mar 16, 2004 | Mar 16, 2004 | — | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 25, 2022 | Wcco 4 G-13-206799 | Newark East (Barnett Shale) | BKV Barnett LLC | Producing | 7,860 |
Formation tops
As filed on W-2/G-1. Subsea from 860 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble Falls | 6,857 | -5,997 |
| BarnettBARNETT SHALE | 7,228 | -6,368 |
| Ordovician | 7,722 | -6,862 |
| BarnettBARNETT SHALE | — | — |
| Marble Falls | — | — |
| Ordovician | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,233 | 7,288 | Perforated |
| 7,233 | 7,681 | Perforated |
| 7,457 | 7,681 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 791 | 12.25 | 420 S |
| 5.5 | 7,858 | 7.875 | 350 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 | Jun 4, 2026 | Nov 26, 2025 | — |
| 00 | Jan 23, 2023 | Oct 31, 2022 | — |
| 00 | Aug 18, 2005 | Feb 7, 2005 | Yes |
| 00 | Mar 14, 2005 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Aug 8, 2008. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Marble Falls, Barnett, Ordovician | TIFF | 791 to 7,858 | Aug 8, 2008run Oct 8, 2004 | 3.76 |
"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 42-497-35558 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-497-35558 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/49735558, documented in the API reference.