WELL · 42-177-34110 · DISTRICT 1
Pen Ranch Unit #4H
Gonzales County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Pen Ranch Unit #4H (API 42-177-34110) is a horizontal well in Gonzales County operated by Zarvona Energy LLC, completed February 23, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 11, 2019, permitted to 9,700 ft.
It was permitted by Earthstone Operating, LLC and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Reklaw, Carrizo, Wilcox, Navarro.
Its lease has reported 1.48M barrels of oil and 927K mcf of gas since April 2019, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Earthstone Operating, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 98 permits on file · (713) 600-0600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Zarvona Energy LLC |
| Production reports | Zarvona Energy LLCthrough Apr 2026 |
| Latest permit | Earthstone Operating, LLCFeb 11, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,700
- total depth, ft
- 1
- permits on file
- Feb 11, 2019
- last permit issued
- Feb 23, 2020
- completed
- 1.48M
- cumulative oil, bbl
- 927K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 23, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
29.193512, -97.668428
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Gonzales County.
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pen Ranch Unit O-1-19839 | Eagleville (Eagle Ford-1) | Zarvona Energy LLC | 7 | 1.48M | 927K | Apr 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 89,735 · prior 12 93,537(-4%)
Gas, mcf lease total
Last 12 months 109,510 · prior 12 74,631(+47%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Earthstone Operating, LLCOct 2019 → Nov 2023
- 2Zarvona Energy LLCDec 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 849772-99 | Drill | Earthstone Operating, LLC | Feb 7, 2019 | Feb 11, 2019 | Sep 16, 2019 | 9,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-19839 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 363 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Reklaw | 2,539 | -2,176 |
| Carrizo | 2,787 | -2,424 |
| WilcoxWILCOX - DISPOSAL | 2,892 | -2,529 |
| Navarro | 7,789 | -7,426 |
| Austin ChalkAUSTIN CHALK - H2S | 8,850 | -8,487 |
| Eagle FordEAGLE FORD - H2S | 9,239 | -8,876 |
| BudaBUDA - H2S, DISPOSAL | — | — |
| EdwardsEDWARDS - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,650 | 16,708 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,823 | 14.75 | 2,120 S |
| 7.625 | 9,527 | 9.875 | 1,215 S |
| 5.5 | 16,880 | 8.5 | 525 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 | Jun 11, 2020 | Apr 21, 2020 | Yes |
| 00 | Apr 24, 2020 | Jan 14, 2020 | — |
| 00 | Dec 4, 2019 | Sep 24, 2019 | 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 42-177-34110 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-34110 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Pen Ranch Unit42-177-34109
0.0 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,539 | -2,177 |
| Carrizo | 2,787 | -2,425 |
| Wilcox | 2,892 | -2,530 |
| Navarro | 7,769 | -7,407 |
| Austin Chalk | 8,804 | -8,442 |
| Eagle Ford | 9,062 | -8,700 |
| Buda | — | |
| Edwards | — |
Pen Ranch Unit42-177-34108
0.0 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,539 | -2,178 |
| Carrizo | 2,787 | -2,426 |
| Wilcox | 2,892 | -2,531 |
| Navarro | 7,742 | -7,381 |
| Austin Chalk | 8,786 | -8,425 |
| Eagle Ford | 9,094 | -8,733 |
| Edwards | — | |
| Buda | — |
Pen Ranch Unit42-177-34107
0.0 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,539 | -2,177 |
| Carrizo | 2,787 | -2,425 |
| Wilcox | 2,892 | -2,530 |
| Navarro | 7,743 | -7,381 |
| Austin Chalk | 8,771 | -8,409 |
| Eagle Ford | 9,099 | -8,737 |
| Edwards | — | |
| Buda | — |
Eli R. Huffman Jr.42-177-33837
1.5 KM · Rosewood Resources, Inc. · Section with this well →
| Carrizo | 1,390 | -1,081 |
| Reklaw | 1,860 | -1,551 |
| Wilcox | 2,170 | -1,861 |
| Navarro | 7,135 | -6,826 |
| Austin Chalk | 8,767 | -8,458 |
| Eagle Ford | 9,053 | -8,744 |
| Edwards | — | |
| Buda | — |
Eli R. Huffman Jr.42-177-34079
1.5 KM · Rosewood Resources, Inc. · Section with this well →
| Carrizo | 1,390 | -1,078 |
| Reklaw | 1,860 | -1,548 |
| Wilcox | 2,170 | -1,858 |
| Navarro | 7,115 | -6,803 |
| Austin Chalk | 8,711 | -8,399 |
| Eagle Ford | 9,009 | -8,697 |
| Edwards | — | |
| Buda | — |
Pen Ranch Unit42-177-34111
2.3 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,868 | -2,535 |
| Carrizo | 3,123 | -2,790 |
| Wilcox | 3,253 | -2,920 |
| Navarro | 8,036 | -7,703 |
| Austin Chalk | 9,068 | -8,735 |
| Eagle Ford | 9,512 | -9,179 |
| Edwards | — | |
| Buda | — |
Pen Ranch Unit42-177-34112
2.3 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,868 | -2,535 |
| Carrizo | 3,123 | -2,790 |
| Wilcox | 3,253 | -2,920 |
| Navarro | 8,036 | -7,703 |
| Austin Chalk | 9,208 | -8,875 |
| Eagle Ford | 9,502 | -9,169 |
| Edwards | — | |
| Buda | — |
Pen Ranch Unit42-177-34113
2.3 KM · Earthstone Operating, LLC · Section with this well →
| Reklaw | 2,868 | -2,535 |
| Carrizo | 3,123 | -2,790 |
| Wilcox | 3,253 | -2,920 |
| Navarro | 8,036 | -7,703 |
| Austin Chalk | 9,197 | -8,864 |
| Eagle Ford | 9,485 | -9,152 |
| Edwards | — | |
| Buda | — |
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/17734110, documented in the API reference.