WELL · 42-055-34095 · DISTRICT 1
Duke #3
Caldwell County · Tenney Creek field · Producing · Vertical
Duke #3 (API 42-055-34095) is a well in Caldwell County operated by Castillo Oil Company LLC, completed April 21, 1986 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 28, 1986, permitted to 2,800 ft.
It was permitted by Duke Oil CO. and has since transferred to Castillo Oil Company LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Pecan Gap, Austin Chalk, Eagle Ford, Buda.
Its lease has reported 13.8K barrels of oil and 188 mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Duke Oil Co.; the EWA schedule now lists a different operator.
Luling, TX · P-5 Y, filed Feb 4, 2026 · (512) 393-4616
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Castillo Oil Company LLC |
| Production reports | Castillo Oil Company LLCthrough Feb 2026 |
| Latest permit | Duke Oil Co.Mar 28, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,800
- total depth, ft
- 1
- permits on file
- Mar 28, 1986
- last permit issued
- Apr 21, 1986
- completed
- 13.8K
- cumulative oil, bbl
- 188
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 21, 1986
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duke O-1-11542 | Tenney Creek | Castillo Oil Company LLC | 2 | 13.8K | 188 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 64 · prior 12 69(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dunkin, Ray L.Aug 1993 → Aug 1995
- 2Lety Oil Co.Sep 1995 → Aug 2002
- 3Castillo Oil Co.Sep 2002 → Feb 2007
- 4Castillo Oil Company LLCMar 2007 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 300523-99 | Drill | Duke Oil Co. | Mar 28, 1986 | Mar 28, 1986 | — | 2,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-11542 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 375 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 2,210 | -1,835 |
| Austin Chalk | 2,460 | -2,085 |
| Eagle FordEAGLEFORD | 2,752 | -2,377 |
| Buda | 2,770 | -2,395 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,458 | 2,522 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 280 | 9.5 | 195 S |
| 4.5 | 2,700 | 7.875 | 455 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 | Jul 1, 1986 | Jun 23, 1986 | Yes |
| 00 | Jun 28, 1986 | — | — |
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 42-055-34095 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-055-34095 → 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/05534095, documented in the API reference.