TEXAS · WELLS · DENTON COUNTY · CUFFMAN LEASE · API 42-121-31085 · DISTRICT 7C
Cuffman #4
Denton County · Newark East (Barnett Shale) field · Producing · Vertical
Cuffman #4 (API 42-121-31085) is a well in Denton County operated by Bkv Barnett LLC, completed December 1, 2001 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 29, 2001, permitted to 8,700 ft.
It was permitted by Dallas Production, Inc. and has since transferred to Bkv Barnett LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Cordell, Marble Falls, Viola.
Its lease has reported 5.69K barrels of oil and 272K mcf of gas since December 2001, last reporting volume in April 2026.
Operator of record
Permitted by Dallas Production, Inc.; 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 | Dallas Production, Inc.Jun 29, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,700
- total depth, ft
- 1
- permits on file
- Jun 29, 2001
- last permit issued
- Dec 1, 2001
- completed
- 5.69K
- cumulative oil, bbl
- 272K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2001 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 1, 2001
- 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 |
|---|---|---|---|---|---|---|
| Cuffman G-13-186732 | Newark, East (Barnett Shale) | BKV Barnett, LLC | 1 | 5.69K | 272K | Dec 2001 – Apr 2026 |
Gas, mcf lease total
Last 12 months 6,132 · prior 12 6,935(-12%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dallas Production, Inc.Dec 2001 → Aug 2002
- 2Burlington Resources O & G Co LPSep 2002 → Oct 2002
- 3Devon Energy Operating Co., L.P.Nov 2002 → Jul 2004
- 4Devon Energy Production Co, L.P.Aug 2004 → Sep 2020
- 5BKV Barnett, LLCOct 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 510924-99 | Drill | Dallas Production, Inc. | Jun 29, 2001 | Jun 29, 2001 | Jul 29, 2001 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 1, 2001 | Cuffman G-13-186732 | Newark East (Barnett Shale) | BKV Barnett LLC | Producing | 8,700 |
Formation tops
As filed on W-2/G-1. Subsea from 833 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cordell | 6,088 | -5,255 |
| Marble Falls | 7,448 | -6,615 |
| Viola | 8,579 | -7,746 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,772 | 7,832 | Perforated |
| 8,114 | 8,134 | Perforated |
| 8,280 | 8,550 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,024 | 12.25 | 490 S |
| 5.5 | 8,680 | 7.875 | 285 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 | Feb 26, 2002 | Jan 28, 2002 | Yes |
| 00 | Feb 6, 2002 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-121-31085 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-121-31085 → 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/12131085, documented in the API reference.