TEXAS · WELLS · KARNES COUNTY · URRUTIA UNIT LEASE · API 42-255-31731 · DISTRICT 02
Urrutia Unit #1H
Karnes County · Sugarkane (Eagle Ford) field · Temp Abandoned · Horizontal
- Fields on the latest permit · any of 5
- Eagleville (Eagle Ford) · Eagleville (Eagle Ford Sour) · Sugarkane (Austin Chalk) · Sugarkane (Cretaceous) · Sugarkane (Eagle Ford)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Urrutia Unit #1H (API 42-255-31731) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed October 5, 2021 and listed as temp abandoned on the RRC schedule, shut in December 1, 2025.
The RRC has issued one drilling permit, issued August 31, 2010, permitted to 12,262 ft.
It was permitted by Hilcorp Energy Company and has since transferred to Marathon Oil EF LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Anacacho, Austin Chalk, Eagle Ford, Upper Ef.
Its lease has reported 203K barrels of oil and 845K mcf of gas since September 2010, last reporting volume in November 2025.
Operator of record
Permitted by Hilcorp Energy Company; 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 Nov 2025 |
| Latest permit | Hilcorp Energy CompanyAug 31, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,262
- total depth, ft
- 1
- permits on file
- Aug 31, 2010
- last permit issued
- Oct 5, 2021
- completed
- 203K
- cumulative oil, bbl
- 845K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · DEC 2010 THROUGH NOV 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 5, 2021
- Shut in
- Dec 1, 2025
- 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 |
|---|---|---|---|---|---|---|
| Urrutia Unit G-2-260389 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 1 | 203K | 845K | Sep 2010 – Nov 2025 |
Gas, mcf lease total
Last 12 months 4,989 · prior 12 34
Wells named Urrutia Unit
Marathon Oil EF LLC's other wells filed under this lease name in Karnes 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.
- 1Hilcorp Energy CompanyDec 2010 → Oct 2011
- 2Marathon Oil EF LLCNov 2011 → Nov 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 701399-99 | Drill | Hilcorp Energy Company | Aug 27, 2010 | Aug 31, 2010 | Sep 20, 2010 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 5, 2021 | Urrutia Unit G-2-260389 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | Temp Abandoned · shut in Dec 1, 2025 | 12,262 |
Formation tops
As filed on W-2/G-1. Subsea from 376 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 12,040 | -11,664 |
| Austin Chalk | 12,190 | -11,814 |
| Eagle FordUPPER EAGLE FORD | 12,195 | -11,819 |
| Upper EF | 12,195 | -11,819 |
| Eagle Ford | 12,240 | -11,864 |
| Eagle FordEAGLEFORD | 12,240 | -11,864 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,875 | 17,257 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.25 | 5,800 | 10.75 | 2,265 S |
| 10.75 | 5,800 | 13.5 | 1,555 S |
| 10.75 | 5,800 | 12.25 | 2,265 S |
| 8.5 | 17,380 | 5.5 | 2,605 S |
| 5.5 | 17,380 | 8.5 | 2,605 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 | Dec 3, 2021 | Nov 16, 2021 | — |
| 00 | Jul 26, 2012 | Jul 25, 2011 | Yes |
| 00 | Jul 29, 2011 | Jan 5, 2011 | — |
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 42-255-31731 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31731 → 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/25531731, documented in the API reference.