TEXAS · WELLS · DUVAL COUNTY · API 42-131-10865 · DISTRICT 04
Duval Ranch Sec. 257 GU #1
Duval County · Lundell (Queen City #4) field · Vertical
Duval Ranch Sec. 257 GU #1 (API 42-131-10865) is a plugged well in Duval County, plugged August 17, 2012, last operated by Killam Oil CO. Ltd..
The RRC has issued 2 drilling permits between 1977 and 1978, permitted to 5,735 ft.
It was permitted by Mobil Oil Corporation and has since transferred to Killam Oil CO. Ltd. on the wellbore schedule.
Operator of record
Permitted by Mobil Oil Corporation; the EWA schedule now lists a different operator.
- Based in
- Laredo, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 9, 2026
- Permits on file
- 837
- Phone
- (956) 724-7141
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Killam Oil Co. Ltd. |
| Production reports | Killam Oil Co., Ltd.through Mar 2006 |
| Latest permit | Mobil Oil CorporationApr 6, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,735
- total depth, ft
- 2
- permits on file
- Apr 6, 1978
- last permit issued
- Jul 10, 1966
- completed
- 0
- cumulative oil, bbl
- 45K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 10, 1966
- Shut in
- —
- Plugged
- Aug 17, 2012
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 |
|---|---|---|---|---|---|---|
| Duval Ranch Sec. 257 GU G-4-39775 | Lundell (Queen City #1) | Killam Oil Co., Ltd. | 1 | 0 | 0 | Jan 1993 – Aug 2012 |
| Duval Ranch Sec. 257 GU G-4-39776 | Lundell (Queen City #2) | Killam Oil Co., Ltd. | 1 | 0 | 45K | Jan 1993 – Aug 2012 |
| Duval Ranch Sec. 257 GU G-4-39777 | Lundell (Queen City #4) | Killam Oil Co., Ltd. | 1 | 0 | 0 | Jan 1993 – Aug 2012 |
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.
- 1Killam Oil Co., Ltd.Apr 1995 → Mar 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 21526-99 | Recompletion | Mobil Oil Corporation | Apr 6, 1978 | Apr 6, 1978 | — | 5,735 |
| 3820-99 | Recompletion | Mobil Oil Corporation | Jul 25, 1977 | Jul 25, 1977 | — | 5,733 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 10, 1966 | Duval Ranch Sec. 257 GU G-4-39777 | Lundell (Queen City #4) | Killam Oil Co. Ltd. | Plugged | — |
| Jul 10, 1966 | Duval Ranch Sec. 257 GU G-4-39776 | Lundell (Queen City #2) | Killam Oil Co. Ltd. | Plugged | — |
| Jul 10, 1966 | Duval Ranch Sec. 257 GU G-4-39775 | Lundell (Queen City #1) | Killam Oil Co. Ltd. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,424 | 5,440 | Perforated |
| 5,456 | 5,479 | Perforated |
| 5,635 | 5,644 | Perforated |
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 12, 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 42-131-10865 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-10865 → 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/13110865, documented in the API reference.