TEXAS · WELLS · DE WITT COUNTY · WARLING 01 LEASE · API 42-123-33581 · DISTRICT 02
Warling 01 #08H
De Witt County · De Witt (Eagle Ford Shale) field · Producing · Horizontal
Warling 01 #08H (API 42-123-33581) is a horizontal well in De Witt County operated by Marathon Oil EF LLC, completed February 12, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 10, 2014, permitted to 13,488 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 8 formation tops, including Frio, Vicksburg, Yegua, Wilcox.
Its lease has reported 362K barrels of oil and 1.48M mcf of gas since May 2015, last reporting volume in August 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 – Extension (X)
- P-5 last filed
- Oct 13, 2026
- 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 Mar 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Jul 10, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,488
- total depth, ft
- 1
- permits on file
- Jul 10, 2014
- last permit issued
- Feb 12, 2016
- completed
- 362K
- cumulative oil, bbl
- 1.48M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · MAY 2015 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 12, 2016
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 |
|---|---|---|---|---|---|---|
| Warling 01 G-2-280368 | De Witt (Eagle Ford Shale) | Marathon Oil EF LLC | 1 | 362K | 1.48M | May 2015 – Aug 2026 |
Gas, mcf lease total
Last 12 months 207,523 · prior 12 8,242
Wells named Warling 01
Marathon Oil EF LLC's other wells filed under this lease name in De Witt County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.May 2015 → Sep 2019
- 2Ensign Operating LLCOct 2019 → Feb 2023
- 3Marathon Oil EF LLCMar 2023 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 784679-99 | Drill | Pioneer Natural Res. USA, Inc. | Apr 15, 2014 | Jul 10, 2014 | Jan 31, 2015 | 21,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 12, 2016 | Warling 01 G-2-280368 | De Witt (Eagle Ford Shale) | Marathon Oil EF LLC | Producing | 13,488 |
Formation tops
As filed on W-2/G-1. Subsea from 398 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Frio | 750 | -352 |
| Vicksburg | 1,939 | -1,541 |
| Yegua | 2,974 | -2,576 |
| Wilcox | 6,267 | -5,869 |
| Austin Chalk | 12,885 | -12,487 |
| Eagle Ford | 13,382 | -12,984 |
| Catahoula | — | — |
| EdwardsEDWARDS - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,621 | 19,875 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,468 | 12.25 | 1,210 S |
| 5.5 | 20,065 | 8.5 | 2,910 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 | Nov 2, 2016 | Oct 31, 2016 | — |
| 00 | Jul 20, 2016 | Jan 13, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 15, 2016. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Wilcox, Austin Chalk, Eagle Ford | TIFF | 10,050 to 20,065 | Sep 15, 2016run Feb 24, 2015 | 0.76 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-123-33581 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-33581 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/12333581, documented in the API reference.