WELL · 42-131-38905 · DISTRICT 4
Duval Co. Ranch Co. -A- #4 R
Duval County · Casa Blanca field · Producing · Vertical
Duval CO. Ranch CO. -A- #4 R (API 42-131-38905) is a well in Duval County operated by Hilcorp Energy Company, completed October 6, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 25, 2006, permitted to 1,300 ft.
It was permitted by Morsey Oil & Gas Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report one formation top, including Cole Sands.
Its lease has reported 159K barrels of oil and 111 mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Morsey Oil & Gas Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Morsey Oil & Gas Corp.Aug 25, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,300
- total depth, ft
- 1
- permits on file
- Aug 25, 2006
- last permit issued
- Oct 6, 2006
- completed
- 159K
- cumulative oil, bbl
- 111
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 6, 2006
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duval Co. Ranch Co. -A- O-4-423 | Casa Blanca | Hilcorp Energy Company | 6 | 159K | 111 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,684 · prior 12 3,846(-30%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Morsey Oil & Gas Corp.Jan 1993 → Mar 2016
- 2Newman Operating CompanyApr 2016 → Jun 2021
- 3Jura Energy Operating LLCJul 2021 → Jun 2023
- 4Hilcorp Energy CompanySep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 624883-99 | Drill | Morsey Oil & Gas Corp. | Aug 24, 2006 | Aug 25, 2006 | Sep 4, 2006 | 1,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-423 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 440 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cole Sands | 1,020 | -580 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,021 | 1,024 | Perforated |
| 1,050 | 1,060 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 105 | 12.25 | 50 S |
| 4.5 | 1,260 | 7.875 | 235 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 | Apr 10, 2007 | Nov 1, 2006 | Yes |
| 00 | Dec 21, 2006 | — | — |
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 42-131-38905 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-38905 → 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/13138905, documented in the API reference.