WELL · 42-177-34470 · DISTRICT 1
Barnhart (EF) 2H Unit #57H
Gonzales County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Barnhart (EF) 2h Unit #57H (API 42-177-34470) is a horizontal well in Gonzales County operated by Ensign Natural Resources II LLC, completed March 12, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 27, 2022, permitted to 11,921 ft.
It was permitted by Marathon Oil EF LLC and has since transferred to Ensign Natural Resources II LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Reklaw, Carrizo, Wilcox, Austin Chalk.
Its lease has reported 513K barrels of oil and 957K mcf of gas since July 2010, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Ensign Natural Resources II LLC
Permitted by Marathon Oil EF LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 29, 2026
- Permits on file
- 13
- Phone
- (346) 809-4062
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil EF LLC |
| Production reports | Marathon Oil EF LLCthrough Apr 2026 |
| Latest permit | Marathon Oil EF LLCJan 27, 2022 |
- 11,921
- total depth, ft
- 1
- permits on file
- Jan 27, 2022
- last permit issued
- Mar 12, 2024
- completed
- 513K
- cumulative oil, bbl
- 957K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 12, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
29.234886, -97.495847
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Barnhart (EF) 2H Unit O-1-20584 | Eagleville (Eagle Ford-1) | Marathon Oil EF LLC | 4 | 513K | 957K | Jul 2010 – Jul 2026 |
Oil, barrels lease total
Last 12 months 17,964 · prior 12 29,854(-40%)
Gas, mcf lease total
Last 12 months 10,187 · prior 12 77,829(-87%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hilcorp Energy CompanyJul 2010 → Oct 2011
- 2Marathon Oil EF LLCJun 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 876335-99 | Drill | Marathon Oil EF LLC | Jan 21, 2022 | Jan 27, 2022 | Feb 22, 2022 | 24,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 12, 2024 | Barnhart (EF) 2H Unit O-1-20584 | Eagleville (Eagle Ford-1) | Ensign Natural Resources II LLC | Producing | 11,921 |
Formation tops
As filed on W-2/G-1. Subsea from 252 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Reklaw | 3,319 | -3,067 |
| Carrizo | 3,744 | -3,492 |
| WilcoxWILCOX - DISPOSAL | 3,953 | -3,701 |
| Austin ChalkAUSTIN CHALK - H2S | 11,008 | -10,756 |
| Eagle FordEAGLE FORD - H2S | 11,663 | -11,411 |
| BudaBUDA - H2S, DISPOSAL | — | — |
| EdwardsEDWARDS - H2S | — | — |
| Navarro | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,870 | 18,128 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,921 | 12.25 | 1,501 S |
| 5.5 | 18,128 | 8.75 | 2,889 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 | May 30, 2024 | May 7, 2024 | Yes |
| 00 | Dec 15, 2023 | Nov 28, 2023 | — |
| 00 | Apr 27, 2023 | Apr 17, 2023 | — |
| 00 | Apr 14, 2023 | Mar 31, 2023 | — |
| 00 | Jan 20, 2023 | Oct 7, 2022 | — |
| 00 | Apr 28, 2022 | Apr 5, 2022 | 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 42-177-34470 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-34470 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Barnhart (EF)42-177-34468
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 3,319 | -3,067 |
| Carrizo | 3,744 | -3,492 |
| Wilcox | 3,953 | -3,701 |
| Austin Chalk | 10,999 | -10,747 |
| Eagle Ford | 11,626 | -11,374 |
| Buda | — | |
| Navarro | — | |
| Edwards | — |
Barnhart (EF) 2H Unit SA42-177-34469
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 3,319 | -3,067 |
| Carrizo | 3,744 | -3,492 |
| Wilcox | 3,953 | -3,701 |
| Austin Chalk | 11,037 | -10,785 |
| Eagle Ford | 11,676 | -11,424 |
| Buda | — | |
| Navarro | — | |
| Edwards | — |
Barnhart (EF) 2H Unit42-177-34471
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 3,319 | -3,067 |
| Carrizo | 3,744 | -3,492 |
| Wilcox | 3,853 | -3,601 |
| Austin Chalk | 10,999 | -10,747 |
| Eagle Ford | 11,662 | -11,410 |
| Edwards | — | |
| Navarro | — | |
| Buda | — |
Barnhart (EF)42-177-34467
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 3,319 | -3,072 |
| Carrizo | 3,744 | -3,497 |
| Wilcox | 3,953 | -3,706 |
| Austin Chalk | 10,990 | -10,743 |
| Eagle Ford | 11,598 | -11,351 |
| Navarro | — | |
| Edwards | — | |
| Buda | — |
Barnhart (EF) 2H Unit-J Unit SA42-177-34472
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 3,319 | -3,071 |
| Carrizo | 3,744 | -3,496 |
| Wilcox | 3,953 | -3,705 |
| Austin Chalk | 11,001 | -10,753 |
| Eagle Ford | 11,667 | -11,419 |
| Navarro | — | |
| Edwards | — | |
| Buda | — |
Walker42-177-33682
1.1 KM · EOG Resources, Inc. · Section with this well →
| Reklaw | 3,480 | -3,184 |
| Wilcox | 3,877 | -3,581 |
| Carrizo | 4,059 | -3,763 |
| Navarro | 9,030 | -8,734 |
| Anacacho | 10,434 | -10,138 |
| Austin Chalk | 10,783 | -10,487 |
| Eagle Ford | 11,229 | -10,933 |
| Edwards | — |
9 TOPS · FIRST 8
Barnhart (EF) C-E SA 142-177-34370
1.5 KM · Marathon Oil EF LLC · Section with this well →
| Austin Chalk | 1,365 | -1,125 |
| Reklaw | 2,832 | -2,592 |
| Carrizo | 3,429 | -3,189 |
| Wilcox | 4,516 | -4,276 |
| Eagle Ford | 10,979 | -10,739 |
| Navarro | — | |
| Edwards | — | |
| Buda | — |
Barnhart (EF) C-E SA 242-177-34371
1.5 KM · Marathon Oil EF LLC · Section with this well →
| Reklaw | 2,832 | -2,592 |
| Carrizo | 3,429 | -3,189 |
| Wilcox | 4,516 | -4,276 |
| Austin Chalk | 10,418 | -10,178 |
| Eagle Ford | 10,994 | -10,754 |
| Edwards | — | |
| Buda | — | |
| Navarro | — |
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/17734470, documented in the API reference.