TEXAS · WELLS · DE WITT COUNTY · EICHHORN GAS UNIT LEASE · API 42-123-32101 · DISTRICT 02
Eichhorn Gas Unit #1
De Witt County · Yorktown NE. (Edwards) field · Producing · Horizontal
Eichhorn Gas Unit #1 (API 42-123-32101) is a horizontal well in De Witt County operated by Blackbrush O & G LLC, completed February 15, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued June 6, 2006, permitted to 14,324 ft.
It was permitted by Pioneer Natural Res. USA, 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, Edwards.
Its lease has reported 1.15K barrels of oil and 7.48M mcf of gas since February 2008, last reporting volume in April 2026.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- San Antonio, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 16, 2025
- Permits on file
- 339
- Phone
- (210) 495-5577
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 | Pioneer Natural Res. USA, Inc.Jun 6, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,324
- total depth, ft
- 3
- permits on file
- Jun 6, 2006
- last permit issued
- Feb 15, 2008
- completed
- 1.15K
- cumulative oil, bbl
- 7.48M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 15, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Eichhorn Gas Unit G-2-234204 | Yorktown, NE. (Edwards) | Blackbrush O & G, LLC | 1 | 1.15K | 7.48M | Feb 2008 – Apr 2026 |
Gas, mcf lease total
Last 12 months 36,142 · prior 12 14,126(+156%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Feb 2008 → Sep 2019
- 2Ensign Operating LLCOct 2019 → Sep 2022
- 3BB-Southtex, LLCOct 2022 → Aug 2024
- 4Blackbrush O & G, LLCSep 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 620345-97 | Drill | Pioneer Natural Res. USA, Inc. | Feb 14, 2008 | Jun 6, 2006 | Jul 17, 2007 | 17,000 |
| 620345-98 | Drill | Pioneer Natural Res. USA, Inc. | Jun 28, 2007 | Jun 6, 2006 | — | 17,000 |
| 620345-99 | Drill | Pioneer Natural Res. USA, Inc. | Jun 2, 2006 | Jun 6, 2006 | Jul 17, 2007 | 15,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 15, 2008 | Eichhorn Gas Unit G-2-234204 | Yorktown NE. (Edwards) | Blackbrush O & G LLC | Producing | 14,324 |
Formation tops
As filed on W-2/G-1. Subsea from 331 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 13,350 | -13,019 |
| Eagle FordEAGLEFORD | 13,672 | -13,341 |
| Edwards | 14,228 | -13,897 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,334 | 16,792 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,530 | 12.25 | 1,520 S |
| — | 14,306 | — | — |
| 5.5 | 14,900 | 8.75 | 3,220 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 | Apr 18, 2008 | Mar 13, 2008 | Yes |
| 00 | Apr 7, 2008 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Oct 15, 2012. Density, Neutron, Resistivity. 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 |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Austin Chalk, Eagle Ford, Edwards | TIFF | 2,530 to 14,896 | Oct 15, 2012run Aug 24, 2007 | 13.5 |
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Austin Chalk, Eagle Ford, Edwards | TIFF | 100 to 14,885 | Jan 24, 2011run Aug 24, 2007 | 15.0 |
"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 42-123-32101 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-32101 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/12332101, documented in the API reference.