TEXAS · WELLS · LA SALLE COUNTY · API 42-283-33452 · DISTRICT 01
Arnold C Unit #31H
La Salle County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Arnold C Unit #31H (API 42-283-33452) is a horizontal well in La Salle County operated by Javelin Energy Partners Mgmt LLC, completed November 25, 2012 and listed as producing on the RRC schedule, shut in December 1, 2025.
The RRC has issued one drilling permit (amended twice), issued August 16, 2012, permitted to 7,893 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 2 leases have reported 406K barrels of oil and 1.17M mcf of gas since September 2012, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
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.Aug 16, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,893
- total depth, ft
- 3
- permits on file
- Aug 16, 2012
- last permit issued
- Nov 25, 2012
- completed
- 406K
- cumulative oil, bbl
- 1.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 25, 2012
- Shut in
- Dec 1, 2025
- 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 2 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Arnold C Unit G-1-291313 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | 1 | 0 | 434K | Nov 2012 – Jul 2026 |
| Arnold C Unit O-1-16243 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | 5 | 406K | 733K | Sep 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 5,383 · prior 12 8,005(-33%)
Gas, mcf lease total
Last 12 months 11,833 · prior 12 14,143(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Callon (Eagle Ford) LLCDec 2012 → Jun 2023
- 2Carrizo (Eagle Ford) LLCDec 2012 → Jan 2020
- 3Ridgemar Energy Operating, LLCJul 2023 → Jan 2025
- 4Javelin Energy Partners Mgmt LLCFeb 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 746288-97 | Drill | Carrizo Oil & Gas, Inc. | Oct 11, 2012 | Aug 16, 2012 | Oct 19, 2012 | 11,000 |
| 746288-98 | Drill | Carrizo Oil & Gas, Inc. | Aug 27, 2012 | Aug 16, 2012 | — | 11,000 |
| 746288-99 | Drill | Carrizo Oil & Gas, Inc. | Aug 10, 2012 | Aug 16, 2012 | Aug 27, 2012 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 25, 2012 | Arnold C Unit G-1-291313 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | Producing · shut in Dec 1, 2025 | 7,893 |
| Nov 25, 2012 | Arnold C Unit O-1-16243 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 513 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CarrizoBASE OF CARRIZO | 2,800 | -2,287 |
| Austin Chalk | 6,987 | -6,474 |
| Eagle Ford | 7,682 | -7,169 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,272 | 12,732 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,902 | 12.25 | 846 S |
| 5.5 | 12,854 | 8.5 | 2,029 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 16, 2021 | Aug 24, 2021 | — |
| 00 | Apr 15, 2013 | Feb 11, 2013 | — |
| 00 | Feb 11, 2013 | Nov 19, 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 42-283-33452 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-33452 → 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/28333452, documented in the API reference.