WELL · 42-311-35481 · DISTRICT 1
Lange E Efs #1H
McMullen County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Lange E Efs #1H (API 42-311-35481) is a horizontal well in Mcmullen County operated by Silverbow Resources Oper LLC, completed April 5, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 7, 2013, permitted to 12,600 ft.
It was permitted by Sea Eagle Ford, LLC and has since transferred to Silverbow Resources Oper LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 56.8K barrels of oil and 850K mcf of gas since July 2013, last reporting in July 2026.
Operator of record
Permitted by Sea Eagle Ford, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 22, 2026
- Permits on file
- 460
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Silverbow Resources Oper LLC |
| Production reports | Silverbow Resources Oper, LLCthrough Mar 2026 |
| Latest permit | Sea Eagle Ford, LLCJun 7, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,600
- total depth, ft
- 2
- permits on file
- Jun 7, 2013
- last permit issued
- Apr 5, 2014
- completed
- 56.8K
- cumulative oil, bbl
- 850K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 5, 2014
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lange E Efs O-1-16993 | Eagleville (Eagle Ford-1) | Silverbow Resources Oper, LLC | 1 | 56.8K | 850K | Jul 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 10,331 · prior 12 11,427(-10%)
Oil, barrels lease total
Last 12 months 382 · prior 12 553(-31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sea Eagle Ford, LLCNov 2013 → Jun 2022
- 2Silverbow Resources Oper, LLCJul 2022 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 763890-98 | Drill | Sea Eagle Ford, LLC | Jun 19, 2013 | Jun 7, 2013 | Oct 11, 2013 | 12,600 |
| 763890-99 | Drill | Sea Eagle Ford, LLC | Jun 4, 2013 | Jun 7, 2013 | — | 10,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-16993 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 271 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 11,989 | -11,718 |
| Austin Chalk | 12,284 | -12,013 |
| Eagle Ford | 12,381 | -12,110 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,770 | 17,190 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,572 | 12.25 | 1,860 S |
| 5.5 | 17,235 | 8.75 | 2,265 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 16, 2014 | Apr 30, 2014 | — |
| 00 | Feb 4, 2014 | Jan 29, 2014 | — |
| 00 | Sep 19, 2013 | Jul 30, 2013 | 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 42-311-35481 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-35481 → 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/31135481, documented in the API reference.