WELL · 42-391-31670 · DISTRICT 2
Demmer #1
Refugio County · LA Rosa North (6135 Stringer) field · Vertical
Demmer #1 (API 42-391-31670) is a plugged well in Refugio County, plugged April 1, 2010, last operated by Ctr Petroleum Inc..
The RRC has issued one drilling permit, issued September 21, 1983, permitted to 6,400 ft.
It was permitted by Expando Oil Company and has since transferred to Ctr Petroleum Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including Catahoula, Greta.
Its 3 leases have reported 24.4K barrels of oil and 24.8K mcf of gas since January 1993, last reporting in May 2010. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Expando Oil Company; the EWA schedule now lists a different operator.
Corpus Chrsti, TX · P-5 Y, filed Jun 5, 2015 · 73 permits on file · (361) 947-7218
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | CTR Petroleum Inc. |
| Production reports | CTR Petroleum, Inc.through Apr 2009 |
| Latest permit | Expando Oil CompanySep 21, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,400
- total depth, ft
- 1
- permits on file
- Sep 21, 1983
- last permit issued
- Apr 17, 1984
- completed
- 24.4K
- cumulative oil, bbl
- 24.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 17, 1984
- Shut in
- —
- Plugged
- Apr 1, 2010
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Demmer O-2-8024 | LA Rosa (Consolidated, Oil) | CTR Petroleum, Inc. | 1 | 21.5K | 3.05K | Dec 1994 – May 2010 |
| Demmer O-2-7754 | LA Rosa, North (6135 Stringer) | CTR Petroleum, Inc. | 1 | 2.88K | 21.8K | Jan 1993 – Mar 1995 |
| — G-2-112166 | — | — | 0 | 0 | 0 | — |
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.
- 1CTR Petroleum, Inc.Jan 1993 → Apr 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 213653-99 | Drill | Expando Oil Company | Jul 30, 1984 | Sep 21, 1983 | Nov 4, 1983 | 6,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-112166 | — | — | — | — |
| — | — O-2-7754 | — | — | — | — |
| — | — O-2-8024 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 30 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,116 | 6,126 | Perforated |
| 6,123 | 6,126 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,060 | 12.25 | 425 sx |
| 4.5 | 6,393 | 7.875 | 695 sx |
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 | Jan 13, 1995 | Nov 20, 1991 | — |
| 00 | Jan 10, 1992 | Nov 20, 1991 | — |
| 00 | Dec 5, 1991 | — | — |
| 00 | Oct 5, 1984 | Jul 30, 1984 | — |
| 00 | Oct 2, 1984 | Jul 30, 1984 | — |
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 42-391-31670 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31670 → 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/39131670, documented in the API reference.