WELL · 42-163-33483 · DISTRICT 1
Nicholson #1H
Frio County · Pearsall (Buda Lime) field · Producing · Horizontal
Nicholson #1H (API 42-163-33483) is a horizontal well in Frio County operated by Blackbrush O & G LLC, completed August 10, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 13, 2011, permitted to 8,000 ft.
It was permitted by Blackbrush O & G, Inc. and has since transferred to Blackbrush O & G LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Austin Chalk, Eagle Ford, Buda.
Its lease has reported 39.3K barrels of oil and 189K mcf of gas since August 2011, last reporting in July 2026.
Operator of record
Permitted by Blackbrush O & G, Inc.; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 339 permits on file · (210) 569-6756
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Blackbrush O & G LLC |
| Production reports | Blackbrush O & G, LLCthrough Apr 2026 |
| Latest permit | Blackbrush O & G, Inc.Jun 13, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Jun 13, 2011
- last permit issued
- Aug 10, 2011
- completed
- 39.3K
- cumulative oil, bbl
- 189K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 10, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nicholson O-1-15876 | Pearsall (Buda Lime) | Blackbrush O & G, LLC | 1 | 39.3K | 189K | Aug 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 295 · prior 12 392(-25%)
Gas, mcf lease total
Last 12 months 495 · prior 12 183(+170%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Blackbrush O & G, Inc.Aug 2011 → Apr 2012
- 2Blackbrush O & G, LLCMay 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 718072-99 | Drill | Blackbrush O & G, Inc. | Jun 8, 2011 | Jun 13, 2011 | Jun 27, 2011 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-15876 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 584 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 6,794 | -6,210 |
| Eagle FordEAGLEFORD | 7,162 | -6,578 |
| Buda | 7,355 | -6,771 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,570 | 9,061 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 847 | 14.75 | 537 S |
| 7.625 | 3,452 | 9.875 | 777 S |
| 7.625 | 7,570 | 9.875 | 283 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 | Sep 11, 2012 | Aug 30, 2011 | 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 42-163-33483 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33483 → 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/16333483, documented in the API reference.