WELL · 42-123-31737 · DISTRICT 2
Post Oil Unit #1
DE Witt County · Woods Cemetary (Wilcox 6550) field · Vertical
Post Oil Unit #1 (API 42-123-31737) is a plugged well in De Witt County, plugged March 16, 2020, last operated by Salvador Oil LLC.
The RRC has issued 2 drilling permits between 1993 and 1996, permitted to 9,200 ft.
It was permitted by Tidemark Petroleum, Inc. and has since transferred to Salvador Oil LLC on the wellbore schedule.
Completion filings report one formation top, including Wilcox.
Its 3 leases have reported 41.1K barrels of oil and 210K mcf of gas since October 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Tidemark Petroleum, Inc.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Mar 4, 2026 · 8 permits on file · (903) 718-0752
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Salvador Oil LLC |
| Production reports | Chisholm Oil & Gas, LCthrough Jul 2014 |
| Latest permit | Tidemark Petroleum, Inc.Mar 26, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 2
- permits on file
- Mar 26, 1996
- last permit issued
- Jul 30, 1996
- completed
- 41.1K
- cumulative oil, bbl
- 210K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 30, 1996
- Shut in
- —
- Plugged
- Mar 16, 2020
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 3 leases 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 |
|---|---|---|---|---|---|---|
| Post Oil Unit O-2-8193 | Woods Cemetary (Wilcox 6550) | Salvador Oil, LLC | 1 | 41.1K | 35.9K | Jul 1996 – Jul 2026 |
| Post Gas Unit G-2-148895 | Woods Cemetary (Warnken) | Tidemark Petroleum, Inc. | 1 | 0 | 174K | Nov 1993 – Jul 1996 |
| Post Gas Unit G-2-148321 | Roehl (Wilcox) | Tidemark Petroleum, Inc. | 1 | 0 | 0 | Oct 1993 – Dec 1993 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tidemark Petroleum, Inc.Nov 1993 → Jul 2002
- 2Roma Oil and Gas, Inc.Aug 2002 → Dec 2005
- 3Chisholm Oil & Gas, LCJun 2006 → Jul 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 446313-99 | Recompletion | Tidemark Petroleum, Inc. | Mar 26, 1996 | Mar 26, 1996 | Mar 27, 1996 | 8,810 |
| 415107-99 | Drill | Tidemark Petroleum, Inc. | Aug 19, 1993 | Aug 23, 1993 | Oct 9, 1993 | 9,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-148321 | — | — | — | — |
| — | — G-2-148895 | — | — | — | — |
| — | — O-2-8193 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 353 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,530 | 6,546 | Perforated |
| 8,595 | 8,598 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,235 | 12.25 | 360 S |
| 5.5 | 9,200 | 7.875 | 900 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 | Nov 5, 1996 | Aug 12, 1996 | Yes |
| 00 | Sep 3, 1996 | — | — |
| 00 | Jun 13, 1994 | Feb 8, 1994 | Yes |
| 00 | Apr 29, 1994 | — | — |
| 00 | Mar 9, 1994 | — | — |
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 42-123-31737 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-31737 → 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/12331737, documented in the API reference.