WELL · 42-025-33871 · DISTRICT 2
Walter Wernli 01 #01H
Bee County · Sugarkane (Eagle Ford) field · Producing · Horizontal
Walter Wernli 01 #01H (API 42-025-33871) is a horizontal well in Bee County operated by Marathon Oil EF LLC, completed August 9, 2013 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 10, 2013, permitted to 21,000 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Marathon Oil EF LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Midway, Austin Chalk, Top Egfd.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Aug 4, 2025 · 3,191 permits on file · (800) 332-9449
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil EF LLC |
| Production reports | Marathon Oil EF LLCthrough Jan 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.May 10, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 21,000
- total depth, ft
- 1
- permits on file
- May 10, 2013
- last permit issued
- Aug 9, 2013
- completed
- 0
- cumulative oil, bbl
- 2.08M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 9, 2013
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Walter Wernli 01 G-2-271138 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 1 | 0 | 2.08M | Aug 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 11,440 · prior 12 23,854(-52%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Aug 2013 → Sep 2019
- 2Ensign Operating LLCOct 2019 → Feb 2023
- 3Marathon Oil EF LLCMar 2023 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 762316-99 | Drill | Pioneer Natural Res. USA, Inc. | May 9, 2013 | May 10, 2013 | May 19, 2013 | 21,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-271138 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 297 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 8,928 | -8,631 |
| Austin ChalkAUSTIN CHALK, UPPER | 12,709 | -12,412 |
| Top Egfd | 12,864 | -12,567 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,190 | 17,301 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 602 | 17.5 | 740 S |
| 9.625 | 9,070 | 12.25 | 2,385 S |
| 5.5 | 17,414 | 8.5 | 1,770 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 | Jan 22, 2014 | Oct 23, 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 42-025-33871 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-025-33871 → 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/02533871, documented in the API reference.