TEXAS · WELLS · LA SALLE COUNTY · IRVIN A UNIT LEASE · API 42-283-33336 · DISTRICT 01
Irvin a Unit #120H
La Salle County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Irvin A Unit #120H (API 42-283-33336) is a horizontal well in La Salle County operated by Javelin Energy Partners Mgmt LLC, completed June 14, 2013 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 26, 2012, permitted to 8,475 ft.
It was permitted by Carrizo Oil & Gas, Inc. and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Carrizo, Austin Chalk, Eagle Ford.
Its lease has reported 238K barrels of oil and 242K mcf of gas since September 2012, last reporting in July 2026.
Operator of record
Javelin Energy Partners Mgmt LLC
Permitted by Carrizo Oil & Gas, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 24, 2026
- Permits on file
- 233
- Phone
- (469) 575-3800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Javelin Energy Partners Mgmt LLC |
| Production reports | Javelin Energy Partners Mgmt LLCthrough Mar 2026 |
| Latest permit | Carrizo Oil & Gas, Inc.Jun 26, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,475
- total depth, ft
- 2
- permits on file
- Jun 26, 2012
- last permit issued
- Jun 14, 2013
- completed
- 238K
- cumulative oil, bbl
- 242K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 14, 2013
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Irvin a Unit O-1-16202 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | 1 | 238K | 242K | Sep 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 32,586 · prior 12 15,329(+113%)
Gas, mcf lease total
Last 12 months 25,444 · prior 12 14,619(+74%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Carrizo (Eagle Ford) LLCNov 2012 → Jan 2020
- 2Callon (Eagle Ford) LLCFeb 2020 → Jun 2023
- 3Ridgemar Energy Operating, LLCJul 2023 → Aug 2024
- 4Javelin Energy Partners Mgmt LLCFeb 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 743000-98 | Drill | Carrizo Oil & Gas, Inc. | Oct 2, 2012 | Jun 26, 2012 | Sep 28, 2012 | 11,000 |
| 743000-99 | Drill | Carrizo Oil & Gas, Inc. | Jun 18, 2012 | Jun 26, 2012 | Jul 14, 2012 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 14, 2013 | Irvin a Unit O-1-16202 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | Producing | 8,475 |
Formation tops
As filed on W-2/G-1. Subsea from 383 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CarrizoBASE OF CARRIZO | 3,350 | -2,967 |
| Austin Chalk | 7,548 | -7,165 |
| Eagle Ford | 8,257 | -7,874 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,988 | 13,383 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,390 | 14.75 | 1,624 S |
| 5.5 | 13,505 | 8.75 | 2,016 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 | Sep 10, 2014 | Jul 1, 2014 | — |
| 00 | Mar 26, 2013 | Jan 23, 2013 | — |
| 00 | Jan 11, 2013 | Oct 22, 2012 | 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 42-283-33336 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-33336 → 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/28333336, documented in the API reference.