Well 20, I.V. MONTALVO 'A', Starr County, Texas
API 42734762 — recorded on 5 leases.
Total depth
6,500 ft
Last completion
Feb 5 2026
as filed
Leases
5
Records
5
wellbore filings
Leases
| Lease | Well no. | Operator | Field | Schedule |
|---|---|---|---|---|
| I.V. MONTALVO 'A' | 20 | KILLAM OIL CO., LTD. | SUN, NORTH (6340) | On |
| I.V. MONTALVO 'A' | 20 | KILLAM OIL CO., LTD. | SUN, NORTH (5810) | On |
| I.V. MONTALVO 'A' | 20 | KILLAM OIL CO., LTD. | SUN,NORTH (5470) | On |
| I.V. MONTALVO 'A' | 20 | KILLAM OIL CO., LTD. | SUN, NORTH (5810) | On |
| I.V. MONTALVO 'A' | 20 | KILLAM OIL CO., LTD. | SUN, NORTH (F-3-G) | Off |
The hole
- Total depth
- 6,500 ft
- Casing strings
- 14
- Deepest casing
- 6,484 ft
- Survey
- SAIS, J J
- Abstract
- 347
- Block / section
- not filed
- Plugging records
- not filed
- Bottom hole location
- 26.68136, -98.49290
26.68136, -98.49290 · NAD83, as filed⌘ or Ctrl + scroll to zoom
Drilling permits
From the Railroad Commission's drilling permit master — the application record, not a record of drilling. A permit is an application the Commission filed and numbered; the spud date is the only field here that says a hole was started. This file carries no approval status, so none is shown.
Permits
4
First issued
Nov 13 2017
to Feb 20 2026
With a spud date
4
last Apr 24 2018
Deepest permitted
8,000 ft
as applied for
| Permit | Issued | Type | Lease | Depth | Spud |
|---|---|---|---|---|---|
| 913510 | Feb 20 2026 | Recompletion | I.V. MONTALVO 'A'no. 20 | 4,990 ft | Nov 26 2017 |
| 901123 | Jul 11 2024 | Recompletion | I.V. MONTALVO 'A'no. 20 | 5,526 ft | Nov 26 2017 |
| 839693 | May 10 2018 | Recompletion | I.V. MONTALVO 'A'no. 20 | 6,200 ft | Apr 24 2018 |
| 832882 | Nov 13 2017 | Drill | I.V. MONTALVO 'A'no. 20 | 8,000 ft | Nov 26 2017 |
What the lease produced
Texas reports oil and gas by lease, never by wellbore, so this is the whole lease. Values are volume multiplied by the published monthly price, the same arithmetic the lease page shows in full.