TEXAS · WELLS · DENTON COUNTY · CASTO-CT FOUR (SA) "A" LEASE · API 42-121-34165 · DISTRICT 7C
Casto-CT Four (SA) A #1H
Denton County · Newark East (Barnett Shale) field · Producing · Horizontal
Casto-CT Four (SA) A #1H (API 42-121-34165) is a horizontal well in Denton County operated by Bkv Barnett LLC, completed May 18, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 2, 2011, permitted to 8,410 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 2 formation tops, including Barnett, Forestberg Lime.
Its lease has reported 4.82M mcf of gas since May 2012, last reporting volume in April 2026.
Operator of record
Permitted by Devon Energy Production 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 Production Co, L.P.Jun 2, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,410
- total depth, ft
- 1
- permits on file
- Jun 2, 2011
- last permit issued
- May 18, 2012
- completed
- 0
- cumulative oil, bbl
- 4.82M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 18, 2012
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| Casto-CT Four (SA) "A" G-13-267724 | Newark, East (Barnett Shale) | BKV Barnett, LLC | 1 | 0 | 4.82M | May 2012 – Apr 2026 |
Gas, mcf lease total
Last 12 months 149,411 · prior 12 155,045(-4%)
Wells named Casto-CT Four (SA) A
BKV Barnett LLC's other wells filed under this lease name in Denton County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.May 2012 → Sep 2020
- 2BKV Barnett, LLCOct 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 715653-99 | Drill | Devon Energy Production Co, L.P. | May 4, 2011 | Jun 2, 2011 | Jan 7, 2012 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 18, 2012 | Casto-CT Four (SA) A G-13-267724 | Newark East (Barnett Shale) | BKV Barnett LLC | Producing | 8,410 |
Formation tops
As filed on W-2/G-1. Subsea from 738 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,601 | 8,810 | Perforated |
| 9,011 | 9,220 | Perforated |
| 9,421 | 9,630 | Perforated |
| 9,831 | 10,040 | Perforated |
| 10,241 | 10,450 | Perforated |
| 10,651 | 10,860 | Perforated |
| 11,061 | 11,270 | Perforated |
| 11,471 | 11,680 | Perforated |
| 11,881 | 12,090 | Perforated |
| 12,291 | 12,500 | Perforated |
| 12,701 | 12,910 | Perforated |
| 13,111 | 13,320 | Perforated |
| 13,521 | 13,730 | Perforated |
| 13,931 | 14,140 | Perforated |
| 14,341 | 14,550 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,320 | 17.5 | 745 S |
| 12.25 | 3,521 | 12.25 | 325 S |
| 5.5 | 14,671 | 8.75 | 1,385 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 | May 17, 2013 | Sep 19, 2012 | Yes |
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 42-121-34165 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-121-34165 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/12134165, documented in the API reference.