WELL · 42-187-31130 · DISTRICT 1
Gambrell W.M. #A 1
Guadalupe County · Dunlap field · Vertical
Gambrell W.M. #A 1 (API 42-187-31130) is a well in Guadalupe County operated by M-Five Oil Company, completed April 4, 1980.
The RRC has issued one drilling permit, issued February 29, 1980, permitted to 2,800 ft.
It was permitted by Klutts & Wise and has since transferred to M-Five Oil Company on the wellbore schedule.
Its lease has reported 16K barrels of oil and 220 mcf of gas since January 1993, last reporting in July 2026. The lease carries 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Klutts & Wise; the EWA schedule now lists a different operator.
Seguin, TX · P-5 Y, filed Apr 5, 2002
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | M-Five Oil Company |
| Production reports | Luling Well Servicethrough Apr 2026 |
| Latest permit | Klutts & WiseFeb 29, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,800
- total depth, ft
- 1
- permits on file
- Feb 29, 1980
- last permit issued
- Apr 4, 1980
- completed
- 16K
- cumulative oil, bbl
- 220
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 4, 1980
- Shut in
- —
- Plugged
- —
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Obregon B O-1-3825 | Dunlap | Luling Well Service | 11 | 16K | 220 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 209 · prior 12 233(-10%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Scully and Smith Oil CorporationJan 1993 → Feb 1993
- 2Staffa, Dottie R.Mar 1993 → Jun 1996
- 3Chessher, Otto Drilling CompanyOct 2001 → Dec 2013
- 4Diana & Paul Haass, LLCJan 2014 → Feb 2016
- 5Luling Well ServiceApr 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 74162-99 | Drill | Klutts & Wise | Feb 29, 1980 | Feb 29, 1980 | — | 2,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-3825 | — | — | — | — |
| — | — O-1-3825 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,132 | 2,318 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 2.375 | 2,250 | — | — |
| 5.5 | 2,408 | 7.875 | 320 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 | Sep 27, 2001 | — | — |
| 00 | Jun 5, 1987 | — | — |
| 00 | Jan 12, 1984 | Apr 16, 1980 | — |
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 42-187-31130 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-187-31130 → 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/18731130, documented in the API reference.