WELL · 42-427-31571 · DISTRICT 4
Pena Niceforo Jr #1
Starr County · Sun East (6300) field · Vertical
Pena Niceforo JR #1 (API 42-427-31571) is a plugged well in Starr County, plugged March 7, 2008, last operated by Cox Edwin L. & Cox Berry R..
The RRC has issued 5 drilling permits between 1981 and 1991, permitted to 8,500 ft.
It was permitted by Graham Royalty, Ltd. and has since transferred to Cox Edwin L. & Cox Berry R. on the wellbore schedule.
Completion filings report 5 formation tops, including Frio, Top Vickburg, Vicksburg, Rincon "B".
Its 3 leases have reported 8.81K barrels of oil and 6.43K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Graham Royalty, Ltd.; the EWA schedule now lists a different operator.
Corpus Chrsti, TX · P-5 Y, filed Jan 13, 1987 · 139 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cox Edwin L. & Cox Berry R. |
| Production reports | Costilla Petroleum Corporationthrough Dec 1996 |
| Latest permit | Graham Royalty, Ltd.Aug 7, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 5
- permits on file
- Aug 7, 1991
- last permit issued
- Jul 11, 1984
- completed
- 8.81K
- cumulative oil, bbl
- 6.43K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 11, 1984
- Shut in
- —
- Plugged
- Mar 7, 2008
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 3 leases this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pena, Niceforo Jr. No. 1 O-4-11962 | Sun, East (4810) | Petra Oleum Corp. | 1 | 8.81K | 6.43K | Jan 1993 – Jul 2026 |
| — O-4-10597 | — | — | 0 | 0 | 0 | — |
| — O-4-11768 | — | — | 0 | 0 | 0 | — |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Graham Royalty, Ltd.Jan 1993 → Aug 1993
- 2Midpar L.P.Nov 1993 → Feb 1995
- 3Parker & Parsley Development L.PMar 1995 → May 1995
- 4Costilla Petroleum CorporationJun 1995 → Dec 1996
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 390594-99 | Recompletion | Graham Royalty, Ltd. | Aug 5, 1991 | Aug 7, 1991 | Jun 26, 1991 | 8,500 |
| 371892-99 | Recompletion | Graham Royalty, Ltd. | Apr 6, 1990 | Apr 20, 1990 | — | 7,920 |
| 252443-99 | Recompletion | Cox, Edwin L. & Cox, Berry R. | Sep 11, 1984 | Sep 25, 1984 | — | 8,500 |
| 245585-99 | Recompletion | Cox, Edwin L. & Cox, Berry R. | Jul 18, 1984 | Jul 19, 1984 | — | 8,500 |
| 130804-99 | Drill | Cox, Edwin L. & Cox, Berry R. | Aug 21, 1981 | Aug 21, 1981 | Aug 16, 1981 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-10597 | — | — | — | — |
| — | — O-4-11768 | — | — | — | — |
| — | — O-4-11962 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 17 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,960 | 4,964 | Perforated |
| 5,112 | 5,116 | Perforated |
| 5,272 | 5,277 | Perforated |
| 6,291 | 6,298 | Perforated |
| 7,420 | 7,628 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 116 | 90 | — |
| 8.625 | 2,028 | 12.25 | 850 S |
| 8.625 | 2,029 | 12.25 | 850 sx |
| 2.375 | 7,355 | — | — |
| 4.5 | 7,920 | 7.875 | 900 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 | Aug 23, 1991 | Aug 2, 1991 | Yes |
| 00 | Aug 12, 1991 | Apr 4, 1990 | Yes |
| 00 | Jun 12, 1990 | Apr 4, 1990 | Yes |
| 00 | Jun 9, 1990 | — | — |
| 00 | Nov 2, 1984 | Sep 17, 1984 | — |
| 00 | Oct 25, 1984 | — | — |
| 00 | Aug 8, 1984 | Jul 24, 1984 | — |
| 00 | Aug 7, 1984 | Jul 24, 1984 | — |
| 00 | Jan 12, 1984 | Oct 26, 1981 | — |
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 42-427-31571 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-31571 → 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/42731571, documented in the API reference.