WELL · 42-311-34524 · DISTRICT 1
NBR EF #4H
McMullen County · Eagleville (Eagle Ford-1) field · Horizontal
Nbr EF #4H (API 42-311-34524) is a horizontal well in Mcmullen County operated by Swift Energy Operating LLC, completed November 14, 2011.
The RRC has issued 2 drilling permits between 2011 and 2018, permitted to 13,000 ft.
It was permitted by Silverbow Resources Oper, LLC and has since transferred to Swift Energy Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Olmos, Austin Chalk, Eagle Ford, Buda.
Its 3 leases have reported 73.3K barrels of oil and 1.33M mcf of gas since November 2011, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Silverbow Resources Oper, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jul 7, 2017 · 630 permits on file · (832) 217-9362
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Swift Energy Operating LLC |
| Production reports | Silverbow Resources Oper, LLCthrough Apr 2026 |
| Latest permit | Silverbow Resources Oper, LLCFeb 9, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 2
- permits on file
- Feb 9, 2018
- last permit issued
- Nov 14, 2011
- completed
- 73.3K
- cumulative oil, bbl
- 1.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 14, 2011
- Shut in
- —
- Plugged
- —
Surface location
28.425279, -98.470653
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in McMullen County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases 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 |
|---|---|---|---|---|---|---|
| NBR EF G-1-281615 | Eagleville (Eagle Ford-1) | Crescent Energy Operating, LLC | 1 | 0 | 55.7K | Nov 2016 – Jul 2026 |
| NBR EF G-1-284496 | Ammann (Buda) | Crescent Energy Operating, LLC | 1 | 0 | 0 | Jul 2016 – Jul 2026 |
| NBR EF O-1-15830 | Eagleville (Eagle Ford-1) | Swift Energy Operating, LLC | 2 | 73.3K | 1.27M | Nov 2011 – Feb 2017 |
Gas, mcf lease total
Last 12 months 9,871 · prior 12 2,776(+256%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Swift Energy Operating, LLCNov 2011 → May 2017
- 2Silverbow Resources Oper, LLCJul 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 836087-99 | Recompletion | Silverbow Resources Oper, LLC | Feb 7, 2018 | Feb 9, 2018 | Sep 21, 2011 | 12,500 |
| 713760-99 | Drill | Swift Energy Operating, LLC | Apr 7, 2011 | Apr 11, 2011 | Jul 26, 2011 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-281615 | — | — | — | — |
| — | — G-1-284496 | — | — | — | — |
| — | — O-1-15830 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 314 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 10,044 | -9,730 |
| Austin Chalk | 11,460 | -11,146 |
| Eagle FordEAGLE FORD SHALE | 11,890 | -11,576 |
| Eagle FordEAGLEFORD SHALE | 11,890 | -11,576 |
| Eagle FordEAGLE FORD SHALOE | 11,890 | -11,576 |
| Eagle FordEAGLEFORD SHALOE | 11,890 | -11,576 |
| Buda | 12,460 | -12,146 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,460 | 16,301 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 6,115 | 14.75 | 4,710 S |
| 4.5 | 16,397 | 6.75 | 960 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 4, 2020 | Jan 21, 2020 | — |
| 00 | Apr 3, 2020 | Oct 22, 2019 | — |
| 00 | Aug 16, 2018 | Feb 15, 2018 | — |
| 00 | Aug 15, 2018 | Feb 14, 2018 | — |
| 00 | Jan 12, 2017 | Nov 22, 2016 | Yes |
| 00 | May 31, 2012 | Apr 16, 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 42-311-34524 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-34524 → 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.
NBR EF42-311-37145
3.7 KM · Silverbow Resources Oper, LLC · Section with this well →
| Wilcox | 4,506 | -4,186 |
| Escondido | 7,674 | -7,354 |
| Olmos | 9,488 | -9,168 |
| Anacacho | 11,004 | -10,684 |
| Austin Chalk | 11,448 | -11,128 |
| Eagle Ford | 11,555 | -11,235 |
| Yegua | — | |
| Frio | — |
10 TOPS · FIRST 8
Paloma Ranch Efs42-311-36786
3.9 KM · Sea Eagle Ford, LLC · Section with this well →
| Wilcox | 4,870 | -4,577 |
| Navarro | 8,385 | -8,092 |
| Escondido | 8,725 | -8,432 |
| Olmos | 9,512 | -9,219 |
| Anacacho | 11,196 | -10,903 |
| Austin Chalk | 11,669 | -11,376 |
| Eagle Ford | 11,682 | -11,389 |
| Catahoula | — |
10 TOPS · FIRST 8
Bracken North C42-311-37450
4.3 KM · Rosewood Resources, Inc. · Section with this well →
| Navarro | 7,521 | -7,197 |
| Olmos | 9,368 | -9,044 |
| Anacacho | 11,174 | -10,850 |
| Austin Chalk | 11,473 | -11,149 |
| Eagle Ford | 11,548 | -11,224 |
| Frio | — | |
| Yegua | — | |
| Wilcox | — |
10 TOPS · FIRST 8
Bracken North B42-311-37449
4.3 KM · Rosewood Resources, Inc. · Section with this well →
| Navarro | 7,533 | -7,210 |
| Olmos | 9,344 | -9,021 |
| Anacacho | 11,194 | -10,871 |
| Austin Chalk | 11,516 | -11,193 |
| Eagle Ford | 11,581 | -11,258 |
| Yegua | — | |
| Catahoula | — | |
| Escondido | — |
10 TOPS · FIRST 8
Bracken North A42-311-37448
4.5 KM · Rosewood Resources, Inc. · Section with this well →
| Navarro | 7,522 | -7,194 |
| Olmos | 9,350 | -9,022 |
| Anacacho | 11,129 | -10,801 |
| Austin Chalk | 11,463 | -11,135 |
| Eagle Ford | 11,537 | -11,209 |
| Yegua | — | |
| Catahoula | — | |
| Escondido | — |
10 TOPS · FIRST 8
Bracken North42-311-37436
4.5 KM · Rosewood Resources, Inc. · Section with this well →
| Navarro | 7,489 | -7,161 |
| Olmos | 9,349 | -9,021 |
| Anacacho | 11,164 | -10,836 |
| Austin Chalk | 11,423 | -11,095 |
| Eagle Ford | 11,498 | -11,170 |
| Yegua | — | |
| Escondido | — | |
| Catahoula | — |
10 TOPS · FIRST 8
Bracken North42-311-37435
4.5 KM · Rosewood Resources, Inc. · Section with this well →
| Navarro | 7,499 | -7,171 |
| Olmos | 9,289 | -8,961 |
| Anacacho | 11,105 | -10,777 |
| Austin Chalk | 11,425 | -11,097 |
| Eagle Ford | 11,493 | -11,165 |
| Yegua | — | |
| Frio | — | |
| Escondido | — |
10 TOPS · FIRST 8
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/31134524, documented in the API reference.