TEXAS · WELLS · LA SALLE COUNTY · IRVIN LEASE · API 42-283-32827 · DISTRICT 01
Irvin #4H
La Salle County · Eagleville (Eagle Ford-1) field · Shut In · Horizontal
Irvin #4H (API 42-283-32827) is a horizontal well in La Salle County operated by Crescent Energy Operating LLC, completed January 22, 2012 and listed as shut in on the RRC schedule, shut in October 1, 2016.
The RRC has issued one drilling permit, issued October 10, 2011, permitted to 8,591 ft.
It was permitted by Cheyenne Petroleum Company and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Olmus, Anacacho, Eagle Ford.
Its lease has reported 2.53M barrels of oil and 2.7M mcf of gas since January 2012, last reporting volume in April 2026. The lease carries 17 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cheyenne Petroleum Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Cheyenne Petroleum CompanyOct 10, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,591
- total depth, ft
- 1
- permits on file
- Oct 10, 2011
- last permit issued
- Jan 22, 2012
- completed
- 2.53M
- cumulative oil, bbl
- 2.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 22, 2012
- Shut in
- Oct 1, 2016
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Irvin O-1-15841 | Eagleville (Eagle Ford-1) | Crescent Energy Operating, LLC | 17 | 2.53M | 2.7M | Jan 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 82,677 · prior 12 122,805(-33%)
Gas, mcf lease total
Last 12 months 66,674 · prior 12 155,930(-57%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cheyenne Petroleum CompanyJan 2012 → Apr 2024
- 2Silverbow Resources Oper, LLCMay 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 725838-99 | Drill | Cheyenne Petroleum Company | Oct 6, 2011 | Oct 10, 2011 | Nov 18, 2011 | 8,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 22, 2012 | Irvin O-1-15841 | Eagleville (Eagle Ford-1) | Crescent Energy Operating LLC | Shut In · shut in Oct 1, 2016 | 8,591 |
Formation tops
As filed on W-2/G-1. Subsea from 368 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmus | 6,519 | -6,151 |
| Anacacho | 7,914 | -7,546 |
| Eagle Ford | 8,481 | -8,113 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,149 | 9,159 | Perforated |
| 9,424 | 9,434 | Perforated |
| 9,699 | 9,709 | Perforated |
| 9,974 | 9,984 | Perforated |
| 10,249 | 10,259 | Perforated |
| 10,524 | 10,534 | Perforated |
| 10,799 | 10,809 | Perforated |
| 11,074 | 11,084 | Perforated |
| 11,349 | 11,359 | Perforated |
| 11,624 | 11,634 | Perforated |
| 11,899 | 11,909 | Perforated |
| 12,174 | 12,184 | Perforated |
| 12,449 | 12,459 | Perforated |
| 12,724 | 12,734 | Perforated |
| 12,999 | 13,009 | Perforated |
| 13,210 | 13,222 | Perforated |
| 13,274 | 13,277 | Perforated |
| 13,460 | 13,470 | Perforated |
| 13,549 | 13,551 | Perforated |
| 13,720 | 13,730 | Perforated |
| 13,809 | 13,820 | Perforated |
| 13,828 | 13,830 | Perforated |
| 14,101 | 14,103 | Perforated |
| 14,350 | 14,361 | Perforated |
| 14,530 | 14,532 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,450 | 14.75 | 1,987 S |
| 5.5 | 14,631 | 8.75 | 1,873 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 1, 2012 | Mar 15, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Dec 22, 2014. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Olmus, Anacacho, Eagle Ford | TIFF | 3,450 to 14,625 | Dec 22, 2014run Dec 7, 2011 | 4.92 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-283-32827 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-32827 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/28332827, documented in the API reference.