TEXAS · WELLS · KARNES COUNTY · NANCY STEWART 01 LEASE · API 42-255-32593 · DISTRICT 02
Nancy Stewart 01 #04H
Karnes County · Sugarkane (Eagle Ford) field · Producing · Horizontal
Nancy Stewart 01 #04H (API 42-255-32593) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed February 2, 2013 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 16, 2012, permitted to 13,164 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 Efgd.
Its lease has reported 175K barrels of oil and 1.29M mcf of gas since February 2013, last reporting volume in April 2026.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 26, 2025
- Permits on file
- 3,191
- Phone
- (832) 486-2737
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 | Pioneer Natural Res. USA, Inc.Aug 16, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,164
- total depth, ft
- 1
- permits on file
- Aug 16, 2012
- last permit issued
- Feb 2, 2013
- completed
- 175K
- cumulative oil, bbl
- 1.29M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2013 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 2, 2013
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Nancy Stewart 01 G-2-269560 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 1 | 175K | 1.29M | Feb 2013 – Apr 2026 |
Gas, mcf lease total
Last 12 months 10,584 · prior 12 8,831(+20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Feb 2013 → Sep 2019
- 2Ensign Operating LLCOct 2019 → Feb 2023
- 3Marathon Oil EF LLCMar 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 742529-99 | Drill | Pioneer Natural Res. USA, Inc. | Jun 9, 2012 | Aug 16, 2012 | Oct 19, 2012 | 21,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 2, 2013 | Nancy Stewart 01 G-2-269560 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | Producing | 13,164 |
Formation tops
As filed on W-2/G-1. Subsea from 235 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 9,130 | -8,895 |
| Austin ChalkAUSTIN CHALK, UPPER | 13,013 | -12,778 |
| Top Efgd | 13,267 | -13,032 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,608 | 19,349 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 878 | 17.5 | 1,150 S |
| 9.625 | 9,371 | 12.25 | 410 S |
| 5.5 | 19,495 | 8.5 | 2,012 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 9, 2013 | Feb 26, 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 42-255-32593 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-32593 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/25532593, documented in the API reference.