WELL · 42-131-32098 · DISTRICT 4
Duval Ranch Sec. 203 #37
Duval County · Petrox N. (Frio 1250) field · Shut IN · Vertical
Duval Ranch Sec. 203 #37 (API 42-131-32098) is a well in Duval County operated by Killam Oil CO. Ltd., completed June 10, 1977 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued June 22, 1977, permitted to 2,000 ft.
It was permitted by Mobil Oil Corporation and has since transferred to Killam Oil CO. Ltd. on the wellbore schedule.
Its lease has reported 134K barrels of oil and 57 mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
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 Apr 2026 |
| Latest permit | Mobil Oil CorporationJun 22, 1977 |
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
- Jun 22, 1977
- last permit issued
- Jun 10, 1977
- completed
- 134K
- cumulative oil, bbl
- 57
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 10, 1977
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duval Ranch Sec. 203 O-4-8921 | Petrox, N. (Frio 1250) | Killam Oil Co., Ltd. | 5 | 134K | 57 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,522 · prior 12 1,894(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dunigan Petroleum, Inc.Jan 1993 → Dec 1993
- 2Killam Oil CompanyJan 1994 → Mar 1994
- 3Killam Oil Co., Ltd.Apr 1994 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 1378-99 | Drill | Mobil Oil Corporation | Jun 22, 1977 | Jun 22, 1977 | — | 2,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-8921 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| — | 1,235 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 371 | 12.25 | 160 S |
| 5.5 | 1,400 | 7.875 | 330 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 | Jan 12, 1984 | Jun 17, 1977 | — |
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 42-131-32098 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-32098 → 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/13132098, documented in the API reference.