WELL · 42-427-34662 · DISTRICT 4
I. V. Montalvo C #45
Starr County · Sun North (5470) field · Producing · Vertical
I. V. Montalvo C #45 (API 42-427-34662) is a well in Starr County operated by Killam Oil CO. Ltd., completed August 30, 2016 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 2013 and 2016, permitted to 7,700 ft.
Completion filings report 2 formation tops, including Frio, Vicksburg.
Its 3 leases have reported 67.7K barrels of oil and 786K mcf of gas since December 2013, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
- 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 | Killam Oil Co., Ltd.Nov 1, 2016 |
- 7,700
- total depth, ft
- 2
- permits on file
- Nov 1, 2016
- last permit issued
- Aug 30, 2016
- completed
- 67.7K
- cumulative oil, bbl
- 786K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 30, 2016
- 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 3 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| I. V. Montalvo 'C' O-4-14004 | Sun,north (5470) | Killam Oil Co., Ltd. | 2 | 67.7K | 164K | Aug 2016 – Jul 2026 |
| I. V. Montalvo 'C' G-4-274231 | Sun, North (5810) | Killam Oil Co., Ltd. | 1 | 0 | 611K | Dec 2013 – Dec 2016 |
| I. V. Montalvo 'C' G-4-281266 | Sun,north (5470) | Killam Oil Co., Ltd. | 1 | 0 | 11.3K | Aug 2016 – Nov 2016 |
Gas, mcf lease total
Last 12 months 30,687 · prior 12 11,854(+159%)
Oil, barrels lease total
Last 12 months 2,853 · prior 12 1,346(+112%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Killam Oil Co., Ltd.Dec 2013 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 819638-99 | Recompletion | Killam Oil Co., Ltd. | Oct 20, 2016 | Nov 1, 2016 | Jul 18, 2016 | 5,560 |
| 770115-99 | Drill | Killam Oil Co., Ltd. | Sep 17, 2013 | Sep 23, 2013 | Oct 20, 2013 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 30, 2016 | I. V. Montalvo C O-4-14004 | Sun North (5470) | Killam Oil Co. Ltd. | Producing | 7,700 |
| Aug 30, 2016 | I. V. Montalvo C G-4-281266 | Sun North (5470) | Killam Oil Co. Ltd. | Not on Schedule | — |
| Nov 20, 2013 | I. V. Montalvo C G-4-274231 | Sun North (5810) | Killam Oil Co. Ltd. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 307 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,517 | 5,526 | Perforated |
| 5,780 | 5,784 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,200 | 12.25 | 452 S |
| 4.5 | 6,038 | 7.875 | 535 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 | Nov 30, 2016 | Nov 21, 2016 | — |
| 00 | Nov 14, 2016 | Nov 2, 2016 | Yes |
| 00 | Nov 3, 2014 | Feb 24, 2014 | Yes |
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 42-427-34662 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-34662 → 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/42734662, documented in the API reference.