WELL · 42-317-37903 · DISTRICT 8
Nail Ranch 28 A #1
Martin County · Spraberry (Trend Area) field · Producing · Vertical
Nail Ranch 28 A #1 (API 42-317-37903) is a well in Martin County operated by Oxyrock Operating LLC, completed May 7, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 14, 2012, permitted to 11,469 ft.
It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its 2 leases have reported 334K barrels of oil and 1.21M mcf of gas since April 2011, last reporting in July 2026. The leases carry 8 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 14, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,469
- total depth, ft
- 2
- permits on file
- Jun 14, 2012
- last permit issued
- May 7, 2014
- completed
- 334K
- cumulative oil, bbl
- 1.21M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 7, 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 2 leases this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nail Ranch 28 O-10-41446 | Spraberry (Trend Area) | Oxyrock Operating, LLC | 6 | 283K | 987K | Apr 2011 – Jul 2026 |
| Nail Ranch 28 A O-10-48499 | Spraberry (Trend Area) | Oxyrock Operating, LLC | 2 | 51.4K | 227K | May 2017 – Jul 2026 |
Oil, barrels lease total
Last 12 months 10,259 · prior 12 12,517(-18%)
Gas, mcf lease total
Last 12 months 29,357 · prior 12 37,772(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Crownquest Operating, LLCApr 2011 → Jul 2024
- 2Oxyrock Operating, LLCAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 741213-98 | Drill | Crownquest Operating, LLC | Sep 25, 2013 | Jun 14, 2012 | Feb 13, 2014 | 12,000 |
| 741213-99 | Drill | Crownquest Operating, LLC | May 22, 2012 | Jun 14, 2012 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 7, 2014 | Nail Ranch 28 A O-10-48499 | Spraberry (Trend Area) | Oxyrock Operating LLC | Producing | 11,469 |
| May 7, 2014 | Nail Ranch 28 O-10-41446 | Spraberry (Trend Area) | Oxyrock Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,761 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,608 | 153 |
| Grayburg | 4,254 | -1,493 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,423 | -1,662 |
| Spraberry | 7,583 | -4,822 |
| Dean | 8,899 | -6,138 |
| Wolfcamp | 9,130 | -6,369 |
| Atoka | 10,950 | -8,189 |
| Cisco | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,149 | 11,328 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 330 | 17.5 | 400 S |
| 8.625 | 5,099 | 11 | 1,150 S |
| 5.5 | 11,469 | 7.875 | 1,900 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 | Jun 20, 2017 | Jun 15, 2017 | — |
| 00 | May 30, 2017 | Nov 18, 2014 | Yes |
| 00 | Nov 19, 2014 | Nov 18, 2014 | Yes |
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 42-317-37903 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-37903 → 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/31737903, documented in the API reference.