TEXAS · WELLS · MARTIN COUNTY · NAIL RANCH "12" LEASE · API 42-317-39417 · DISTRICT 7B
Nail Ranch 12 #8
Martin County · Spraberry (Trend Area) field · Producing · Vertical
Nail Ranch 12 #8 (API 42-317-39417) is a well in Martin County operated by Oxyrock Operating LLC, completed August 28, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 2, 2014, permitted to 11,558 ft.
It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Queen, Grayburg, San Andres.
Its lease has reported 919K barrels of oil and 2.52M mcf of gas since January 2011, last reporting volume in April 2026. The lease carries 15 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Crownquest Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 22, 2026
- Permits on file
- 392
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Oxyrock Operating LLC |
| Production reports | Oxyrock Operating, LLCthrough Apr 2026 |
| Latest permit | Crownquest Operating, LLCJun 2, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,558
- total depth, ft
- 1
- permits on file
- Jun 2, 2014
- last permit issued
- Aug 28, 2014
- completed
- 919K
- cumulative oil, bbl
- 2.52M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2011 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 28, 2014
- 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.
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 15 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nail Ranch "12" O-10-40862 | Spraberry (Trend Area) | Oxyrock Operating, LLC | 15 | 919K | 2.52M | Jan 2011 – Apr 2026 |
Oil, barrels lease total
Last 12 months 19,451 · prior 12 27,465(-29%)
Gas, mcf lease total
Last 12 months 65,014 · prior 12 87,622(-26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Crownquest Operating, LLCJan 2011 → Jul 2024
- 2Oxyrock Operating, LLCAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 783225-99 | Drill | Crownquest Operating, LLC | Mar 26, 2014 | Jun 2, 2014 | Jun 26, 2014 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 28, 2014 | Nail Ranch 12 O-10-40862 | Spraberry (Trend Area) | Oxyrock Operating LLC | Producing | 11,558 |
Formation tops
As filed on W-2/G-1. Subsea from 2,735 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,534 | 201 |
| Queen | 3,513 | -778 |
| Grayburg | 4,292 | -1,557 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,417 | -1,682 |
| Spraberry | 7,522 | -4,787 |
| Dean | 8,843 | -6,108 |
| Wolfcamp | 9,076 | -6,341 |
| Atoka | 10,950 | -8,215 |
| Cisco | — | — |
| Santa Rosa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,127 | 11,347 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 353 | 17.5 | 500 S |
| 8.625 | 5,350 | 11 | 1,225 S |
| 5.5 | 11,529 | 7.875 | 1,925 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 | Jan 12, 2015 | Oct 28, 2014 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Jun 29, 2017. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NeutronSpans Yates, Queen, Grayburg, San Andres, Spraberry, Dean, Wolfcamp, Atoka | LAS + TIFF | 3,000 to 11,486 | Jun 29, 2017 | 1.98 + 15.4 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-317-39417 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-39417 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/31739417, documented in the API reference.