WELL · 42-029-36643 · DISTRICT 1
Nentwich J. #1
Bexar County · Fairfield field · Producing · Vertical
Nentwich J. #1 (API 42-029-36643) is a well in Bexar County operated by Simco Oil LLC, completed October 11, 1985 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 15, 1985, permitted to 1,300 ft.
It was permitted by Alco Oil Company and has since transferred to Simco Oil LLC on the wellbore schedule.
Completion filings report one formation top, including Anaconcho Lime.
Its lease has reported 5.16K barrels of oil and 42 mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Alco Oil Company; the EWA schedule now lists a different operator.
Lytle, TX · P-5 Y, filed Dec 4, 2025 · (210) 606-8512
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Simco Oil LLC |
| Production reports | Simco Oil, LLCthrough Mar 2026 |
| Latest permit | Alco Oil CompanyAug 15, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,300
- total depth, ft
- 1
- permits on file
- Aug 15, 1985
- last permit issued
- Oct 11, 1985
- completed
- 5.16K
- cumulative oil, bbl
- 42
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 11, 1985
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: 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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nentwich, J. O-1-10675 | Fairfield | Simco Oil, LLC | 3 | 5.16K | 42 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 7 · prior 12 2(+250%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Calk, J. M. Operating Co.Feb 1993 → Feb 1993
- 2Starr Operating CompanyApr 1993 → Sep 1996
- 3Diamond Trading & Pipeline CorpJan 1998 → Jan 1998
- 4Simco OilJul 2006 → Dec 2013
- 5Simco Oil, LLCJan 2014 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 282870-99 | Drill | Alco Oil Company | Aug 14, 1985 | Aug 15, 1985 | — | 1,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-10675 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,188 | 1,195 | Perforated |
| 1,198 | 1,206 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,240 | 6.875 | 126 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 | Dec 6, 1985 | Nov 22, 1985 | Yes |
| 00 | Dec 5, 1985 | — | — |
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 42-029-36643 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-029-36643 → 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/02936643, documented in the API reference.