WELL · 42-427-31370 · DISTRICT 4
Montalvo I. V. -C- #40
Starr County · Sun North (F-4-P) field · Vertical
Montalvo I. V. -C- #40 (API 42-427-31370) is a plugged well in Starr County, plugged August 19, 2005, last operated by Kerr-Mcgee Oil & Gas Onshore LLC.
The RRC has issued 3 drilling permits between 1979 and 1995, permitted to 5,600 ft.
It was permitted by Oryx Energy Company and has since transferred to Kerr-Mcgee Oil & Gas Onshore LLC on the wellbore schedule.
Completion filings report 6 formation tops, including C-3, Dx-D, Dx-G, D-1-B.
Operator of record
Kerr-McGee Oil & Gas Onshore LLC
Permitted by Oryx Energy Company; the EWA schedule now lists a different operator.
The Woodlands, TX · P-5 Y, filed Jul 6, 2007 · 377 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kerr-McGee Oil & Gas Onshore LLC |
| Production reports | Oryx Energy Companythrough Jan 1996 |
| Latest permit | Oryx Energy CompanyJun 6, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,600
- total depth, ft
- 3
- permits on file
- Jun 6, 1995
- last permit issued
- Jun 18, 1995
- completed
- 0
- cumulative oil, bbl
- 164K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2005
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 18, 1995
- Shut in
- —
- Plugged
- Aug 19, 2005
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 |
|---|---|---|---|---|---|---|
| Montalvo, I. V. -C- G-4-154648 | Sun, North (F-4-P) | Kerr-McGee Oil & Gas Onshore LLC | 1 | 0 | 31.8K | Jun 1995 – Aug 2005 |
| Montalvo, I. V. -C- G-4-154661 | Sun, North (DX-G) | Kerr-McGee Oil & Gas Onshore LLC | 1 | 0 | 2.42K | Jun 1995 – Aug 2005 |
| Montalvo, I. V. -C- G-4-98027 | Sun, N. (DX-D, Seg B) | Oryx Energy Company | 1 | 0 | 130K | Jan 1993 – Jun 1995 |
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.
- 1Oryx Energy CompanyJan 1993 → Jan 1996
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 436605-99 | Recompletion | Oryx Energy Company | Jun 6, 1995 | Jun 6, 1995 | Jun 8, 1995 | 5,600 |
| 140041-99 | Recompletion | Sun Expl. & Prod. Co.-Corpus | Nov 9, 1981 | Nov 9, 1981 | — | 5,600 |
| 66882-99 | Drill | Sun Expl. & Prod. Co.-Corpus | Dec 14, 1979 | Dec 14, 1979 | Jan 2, 1980 | 5,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-98027 | — | — | — | — |
| — | — G-4-154648 | — | — | — | — |
| — | — G-4-154661 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 322 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| C-3 | 4,474 | -4,152 |
| DX-D | 4,724 | -4,402 |
| DX-G | 4,758 | -4,436 |
| D-1-B | 4,829 | -4,507 |
| F-4-P | 5,260 | -4,938 |
| F-4-K | 5,262 | -4,940 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,724 | 4,728 | Perforated |
| 4,758 | 4,832 | Perforated |
| 5,131 | 5,140 | Perforated |
| 5,260 | 5,310 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,518 | 13.75 | 770 S |
| 2.75 | 4,655 | — | — |
| 2.375 | 5,075 | — | — |
| 5.5 | 5,600 | 8.75 | 725 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 | Aug 28, 1995 | Jul 10, 1995 | — |
| 00 | Jul 13, 1995 | — | — |
| 00 | Jan 12, 1984 | Jan 5, 1982 | — |
| 00 | Jan 12, 1984 | Mar 3, 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 42-427-31370 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-31370 → 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/42731370, documented in the API reference.