TEXAS · WELLS · LA SALLE COUNTY · MELLENBRUCH UNIT LEASE · API 42-283-35229 · DISTRICT 01
Mellenbruch Unit #12H
La Salle County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Mellenbruch Unit #12H (API 42-283-35229) is a horizontal well in La Salle County operated by Verdun Oil EF II LLC, completed January 15, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended 3 times), issued November 10, 2014, permitted to 9,980 ft.
It was permitted by Carrizo (Eagle Ford) LLC and has since transferred to Verdun Oil EF II LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Midway, Wilcox, Escondido, Olmos.
Its lease has reported 435K barrels of oil and 1.29M mcf of gas since July 2015, last reporting volume in April 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Carrizo (Eagle Ford) LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 26, 2026
- Permits on file
- 48
- Phone
- (713) 337-9300
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Verdun Oil EF II LLC |
| Production reports | Verdun Oil EF II LLCthrough Apr 2026 |
| Latest permit | Carrizo (Eagle Ford) LLCNov 10, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,980
- total depth, ft
- 4
- permits on file
- Nov 10, 2014
- last permit issued
- Jan 15, 2016
- completed
- 435K
- cumulative oil, bbl
- 1.29M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2016 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 15, 2016
- 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; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mellenbruch Unit O-1-18655 | Eagleville (Eagle Ford-1) | Verdun Oil EF II LLC | 8 | 435K | 1.29M | Jul 2015 – Apr 2026 |
Oil, barrels lease total
Last 12 months 13,739 · prior 12 15,631(-12%)
Gas, mcf lease total
Last 12 months 53,810 · prior 12 61,754(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Carrizo (Eagle Ford) LLCJan 2016 → Jan 2018
- 2EP Energy E&P Company, L.P.Feb 2018 → Apr 2022
- 3EP Energy E&P Company, LLCMay 2022 → Feb 2025
- 4Verdun Oil EF II LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 799925-96 | Drill | Carrizo (Eagle Ford) LLC | Nov 17, 2015 | Nov 10, 2014 | Dec 17, 2015 | 11,000 |
| 799925-97 | Drill | Carrizo (Eagle Ford) LLC | Nov 11, 2015 | Nov 10, 2014 | Jul 8, 2015 | 11,000 |
| 799925-98 | Drill | Carrizo (Eagle Ford) LLC | Oct 15, 2015 | Nov 10, 2014 | Jul 8, 2015 | 11,000 |
| 799925-99 | Drill | Carrizo (Eagle Ford) LLC | Nov 10, 2014 | Nov 10, 2014 | Jul 8, 2015 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 15, 2016 | Mellenbruch Unit O-1-18655 | Eagleville (Eagle Ford-1) | Verdun Oil EF II LLC | Producing | 9,980 |
Formation tops
As filed on W-2/G-1. Subsea from 425 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 4,173 | -3,748 |
| WilcoxWILCOX - DISPOSAL | 4,173 | -3,748 |
| Escondido | 5,326 | -4,901 |
| OlmosOLMOS - DISPOSAL | 6,336 | -5,911 |
| Austin Chalk | 9,253 | -8,828 |
| Eagle FordEAGLE FORD - H2S | 10,043 | -9,618 |
| BudaBUDA - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| Queen City | — | — |
| Sparta | — | — |
| WilcoxWILCOX - DISPOSAL | — | — |
| Yegua | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,341 | 16,158 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,058 | 13.5 | 1,591 S |
| 5.5 | 16,279 | 8.5 | 1,940 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 | Apr 21, 2016 | Mar 31, 2016 | — |
| 00 | Feb 12, 2016 | Dec 16, 2015 | 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 42-283-35229 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-35229 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/28335229, documented in the API reference.