WELL · 42-317-33313 · DISTRICT 8
Nail -33- #4
Martin County · Spraberry (Trend Area) field · Vertical
Nail -33- #4 (API 42-317-33313) is a plugged well in Martin County, plugged April 6, 2000, last operated by Civitas Permian Operating LLC.
The RRC has issued one drilling permit, issued December 6, 1985, permitted to 9,700 ft.
It was permitted by Costex Resources, Inc. and has since transferred to Civitas Permian Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including U/Spra, M/Spra, L/Spra, Jo Mill.
Its lease has reported 286K barrels of oil and 751K mcf of gas since January 1993, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Costex Resources, Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Aug 4, 2025 · 477 permits on file · (432) 563-8316
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Civitas Permian Operating LLC |
| Production reports | Civitas Permian Operating, LLCthrough Mar 2026 |
| Latest permit | Costex Resources, Inc.Dec 6, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,700
- total depth, ft
- 1
- permits on file
- Dec 6, 1985
- last permit issued
- Feb 5, 1986
- completed
- 286K
- cumulative oil, bbl
- 751K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 5, 1986
- Shut in
- —
- Plugged
- Apr 6, 2000
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nail -33- O-10-29780 | Spraberry (Trend Area) | Civitas Permian Operating, LLC | 7 | 286K | 751K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 706 · prior 12 2,397(-71%)
Gas, mcf lease total
Last 12 months 912 · prior 12 4,750(-81%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Costilla Petroleum CorporationJan 1993 → Jan 1997
- 2Costilla Energy, Inc.Feb 1997 → Nov 1998
- 3Concho Resources Inc.Dec 1998 → Jun 2001
- 4Devon Energy Production Co, L.P.Jul 2001 → Jun 2002
- 5Merit Energy CompanyJul 2002 → Nov 2013
- 6Hunt Oil CompanyDec 2013 → Jul 2021
- 7Vencer Energy, LLCAug 2021 → Dec 2023
- 8Civitas Permian Operating, LLCJan 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 292458-99 | Drill | Costex Resources, Inc. | Dec 5, 1985 | Dec 6, 1985 | — | 9,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-29780 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,840 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,816 | 9,098 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 340 | 17.5 | 320 S |
| 8.625 | 4,500 | 11 | 2,650 S |
| 4.5 | 9,490 | 7.875 | 1,500 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 | Mar 20, 1986 | Mar 12, 1986 | Yes |
| 00 | Mar 18, 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 42-317-33313 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-33313 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/31733313, documented in the API reference.