WELL · 42-255-31228 · DISTRICT 2
Estelle Rolf Gas Unit #5
Karnes County · Kenedy SW. (Edwards) field · Producing · Vertical
Estelle Rolf Gas Unit #5 (API 42-255-31228) is a well in Karnes County operated by Blackbrush O & G LLC, completed August 20, 1989 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 17, 1989, permitted to 14,000 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Blackbrush O & G LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Queen City, Wilcox, Navarro, Austin Chalk.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Mobil Producing TX. & N.M. 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 | Mobil Producing TX. & N.M. Inc.Apr 17, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 1
- permits on file
- Apr 17, 1989
- last permit issued
- Aug 20, 1989
- completed
- 0
- cumulative oil, bbl
- 2.75M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 20, 1989
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Estelle Rolf Gas Unit G-2-131972 | Kenedy, SW. (Edwards) | Blackbrush O & G, LLC | 1 | 0 | 2.75M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 61,521 · prior 12 56,933(+8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Sep 2019
- 4Ensign Operating LLCOct 2019 → Sep 2022
- 5BB-Southtex, LLCOct 2022 → Aug 2024
- 6Blackbrush O & G, LLCSep 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 358129-99 | Drill | Mobil Producing TX. & N.M. Inc. | Apr 14, 1989 | Apr 17, 1989 | May 11, 1989 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-131972 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 482 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 4,565 | -4,083 |
| Wilcox | 5,655 | -5,173 |
| WilcoxLOWER WILCOX | 8,868 | -8,386 |
| Navarro | 10,740 | -10,258 |
| Austin ChalkAUSTIN | 12,600 | -12,118 |
| Edwards | 12,955 | -12,473 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,084 | 13,356 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 80 | — | — |
| 9.625 | 3,025 | 13.75 | 1,100 S |
| 5.5 | 13,418 | 7.875 | 2,200 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 | Oct 30, 1989 | Sep 28, 1989 | Yes |
| 00 | Oct 20, 1989 | — | — |
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 42-255-31228 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31228 → 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/25531228, documented in the API reference.