WELL · 42-451-31734 · DISTRICT 7
Los Ninos #1
Tom Green County · Hall (San Andres) field · Vertical
Los Ninos #1 (API 42-451-31734) is a plugged well in Tom Green County, plugged August 24, 1990, last operated by Elco Oil & Gas Inc..
The RRC has issued one drilling permit, issued July 18, 1986, permitted to 2,000 ft.
It was permitted by Demco Exploration, Inc. and has since transferred to Elco Oil & Gas Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including San Andres, Clear Fork.
Its lease has reported 29K barrels of oil and 213 mcf of gas since January 1993, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Demco Exploration, Inc.; the EWA schedule now lists a different operator.
San Angelo, TX · P-5 Y, filed Nov 4, 2025 · 5 permits on file · (325) 277-6223
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Elco Oil & Gas Inc. |
| Production reports | Elco Oil & Gas, Inc.through Apr 2026 |
| Latest permit | Demco Exploration, Inc.Jul 18, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,000
- total depth, ft
- 1
- permits on file
- Jul 18, 1986
- last permit issued
- Aug 30, 1986
- completed
- 29K
- cumulative oil, bbl
- 213
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 30, 1986
- Shut in
- —
- Plugged
- Aug 24, 1990
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Los Ninos O-9-12229 | Hall (San Andres) | Elco Oil & Gas, Inc. | 7 | 29K | 213 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 445 · prior 12 675(-34%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Double S EnergyJan 1993 → Jul 1995
- 2Elco Oil & GasSep 1995 → Dec 2013
- 3Elco Oil & Gas, Inc.Jan 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 304354-99 | Drill | Demco Exploration, Inc. | Jul 18, 1986 | Jul 18, 1986 | Jul 29, 1986 | 2,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-12229 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,178 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 808 | 1,370 |
| Clear ForkCLEARFORK | 1,120 | 1,058 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 808 | 818 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 464 | 11.25 | 313 S |
| 4.5 | 1,308 | 7.875 | 300 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 | Jul 15, 1987 | Jul 6, 1987 | Yes |
| 00 | Jul 14, 1987 | — | — |
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 42-451-31734 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-31734 → 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/45131734, documented in the API reference.