WELL · 42-173-38645 · DISTRICT 8
Nassau Hall G #103JM
Glasscock County · Spraberry (Trend Area) field · Producing · Horizontal
Nassau Hall G #103JM (API 42-173-38645) is a horizontal well in Glasscock County operated by Oxyrock Operating LLC, completed January 18, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 23, 2022, permitted to 7,750 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 Rustler, Yates, Grayburg, San Andres.
Its lease has reported 195K barrels of oil and 678K mcf of gas since January 2024, last reporting in July 2026.
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, LLCFeb 23, 2022 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,750
- total depth, ft
- 1
- permits on file
- Feb 23, 2022
- last permit issued
- Jan 18, 2024
- completed
- 195K
- cumulative oil, bbl
- 678K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2024 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 18, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
31.878058, -101.752656
Permit surface location from the RRC GIS record, in Glasscock County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nassau Hall G O-10-61507 | Spraberry (Trend Area) | Oxyrock Operating, LLC | 1 | 195K | 678K | Jan 2024 – Jul 2026 |
Oil, barrels lease total
Last 12 months 38,469 · prior 12 106,592(-64%)
Gas, mcf lease total
Last 12 months 250,581 · prior 12 371,125(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Crownquest Operating, LLCJan 2024 → Jul 2024
- 2Oxyrock Operating, LLCAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 876137-99 | Drill | Crownquest Operating, LLC | Jan 17, 2022 | Feb 23, 2022 | Oct 11, 2022 | 7,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-61507 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,599 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,369 | 1,230 |
| Yates | 2,199 | 400 |
| Grayburg | 3,869 | -1,270 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,257 | -1,658 |
| Glorieta | 4,769 | -2,170 |
| Clear ForkCLEARFORK | 5,786 | -3,187 |
| Spraberry | 6,943 | -4,344 |
| Queen | — | — |
| Santa Rosa | — | — |
| Seven Rivers | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,984 | 18,025 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 422 | 17.5 | 350 S |
| 9.625 | 5,012 | 12.25 | 1,204 S |
| 5.5 | 18,176 | 8.5 | 1,895 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 22, 2024 | May 23, 2024 | 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 42-173-38645 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-38645 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.
Princeton G42-173-38640
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,370 | 1,227 |
| Yates | 2,195 | 402 |
| Grayburg | 3,867 | -1,270 |
| San Andres | 4,257 | -1,660 |
| Glorieta | 4,761 | -2,164 |
| Clear Fork | 5,788 | -3,191 |
| Spraberry | 6,936 | -4,339 |
| Seven Rivers | — |
10 TOPS · FIRST 8
Princeton H42-173-38641
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,368 | 1,228 |
| Yates | 2,185 | 411 |
| Grayburg | 3,870 | -1,274 |
| San Andres | 4,260 | -1,664 |
| Glorieta | 4,762 | -2,166 |
| Clear Fork | 5,780 | -3,184 |
| Spraberry | 6,930 | -4,334 |
| Santa Rosa | — |
10 TOPS · FIRST 8
Princeton H42-173-38642
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,372 | 1,227 |
| Yates | 2,193 | 406 |
| Grayburg | 3,861 | -1,262 |
| San Andres | 4,262 | -1,663 |
| Glorieta | 4,757 | -2,158 |
| Clear Fork | 5,776 | -3,177 |
| Spraberry | 7,471 | -4,872 |
| Queen | — |
10 TOPS · FIRST 8
Nassau Hall H42-173-38646
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,392 | 1,207 |
| Yates | 2,203 | 396 |
| Grayburg | 3,872 | -1,273 |
| San Andres | 4,280 | -1,681 |
| Glorieta | 4,780 | -2,181 |
| Clear Fork | 5,788 | -3,189 |
| Spraberry | 6,939 | -4,340 |
| Queen | — |
10 TOPS · FIRST 8
Princeton H42-173-38643
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,363 | 1,236 |
| Yates | 2,180 | 419 |
| Grayburg | 3,868 | -1,269 |
| San Andres | 4,270 | -1,671 |
| Glorieta | 4,770 | -2,171 |
| Clear Fork | 5,783 | -3,184 |
| Spraberry | 6,937 | -4,338 |
| Santa Rosa | — |
10 TOPS · FIRST 8
Princeton H42-173-38644
0.0 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,357 | 1,242 |
| Yates | 2,178 | 421 |
| Grayburg | 3,857 | -1,258 |
| San Andres | 4,263 | -1,664 |
| Glorieta | 4,799 | -2,200 |
| Clear Fork | 5,769 | -3,170 |
| Spraberry | 6,933 | -4,334 |
| Santa Rosa | — |
10 TOPS · FIRST 8
Princeton G42-173-38639
0.2 KM · Crownquest Operating, LLC · Section with this well →
| Rustler | 1,371 | 1,217 |
| Yates | 2,203 | 385 |
| Grayburg | 3,859 | -1,271 |
| San Andres | 4,259 | -1,671 |
| Glorieta | 4,763 | -2,175 |
| Clear Fork | 5,772 | -3,184 |
| Spraberry | 6,925 | -4,337 |
| Seven Rivers | — |
10 TOPS · FIRST 8
Princeton A42-173-38815
0.2 KM · Oxyrock Operating, LLC · Section with this well →
| Rustler | 1,366 | 1,222 |
| Yates | 2,195 | 393 |
| Grayburg | 3,847 | -1,259 |
| San Andres | 4,275 | -1,687 |
| Glorieta | 4,786 | -2,198 |
| Clear Fork | 5,784 | -3,196 |
| Spraberry | 6,953 | -4,365 |
| Queen | — |
10 TOPS · FIRST 8
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/17338645, documented in the API reference.