TEXAS · WELLS · KARNES COUNTY · EYHORN GAS UNIT 1 LEASE · API 42-255-31650 · DISTRICT 02
Eyhorn Gas Unit 1 #4
Karnes County · Sugarkane (Eagle Ford) field · Temp Abandoned · Horizontal
Eyhorn Gas Unit 1 #4 (API 42-255-31650) is a horizontal well in Karnes County operated by Repsol Oil & Gas USA LLC, completed August 25, 2010 and listed as temp abandoned on the RRC schedule, shut in December 1, 2010.
The RRC has issued one drilling permit (amended 4 times), issued February 10, 2010, permitted to 13,526 ft.
It was permitted by Enduring Resources, LLC and has since transferred to Repsol Oil & Gas USA LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Midway, Austin Chalk, Eagle Ford.
Its lease has reported 16.6K barrels of oil and 131K mcf of gas since August 2010, with no volume in the three years through April 2026.
Operator of record
Permitted by Enduring Resources, LLC; the EWA schedule now lists a different operator.
- Based in
- The Woodlands, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 22, 2026
- Permits on file
- 189
- Phone
- (832) 442-1000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Repsol Oil & Gas USA LLC |
| Production reports | Repsol Oil & Gas USA, LLCthrough Oct 2012 |
| Latest permit | Enduring Resources, LLCFeb 10, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,526
- total depth, ft
- 5
- permits on file
- Feb 10, 2010
- last permit issued
- Aug 25, 2010
- completed
- 16.6K
- cumulative oil, bbl
- 131K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2010 THROUGH Oct 2012
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 25, 2010
- Shut in
- Dec 1, 2010
- 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 |
|---|---|---|---|---|---|---|
| Eyhorn Gas Unit 1 G-2-259630 | Sugarkane (Eagle Ford) | Repsol Oil & Gas USA, LLC | 1 | 16.6K | 131K | Aug 2010 – Oct 2012 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Talisman Energy USA Inc.Aug 2010 → Oct 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 691006-95 | Drill | Enduring Resources, LLC | Jul 23, 2010 | Feb 10, 2010 | Apr 11, 2010 | 14,100 |
| 691006-96 | Drill | Enduring Resources, LLC | May 27, 2010 | Feb 10, 2010 | Apr 11, 2010 | 14,100 |
| 691006-97 | Drill | Enduring Resources, LLC | Apr 22, 2010 | Feb 10, 2010 | Apr 11, 2010 | 14,500 |
| 691006-98 | Drill | Enduring Resources, LLC | Feb 19, 2010 | Feb 10, 2010 | — | 14,500 |
| 691006-99 | Drill | Enduring Resources, LLC | Feb 9, 2010 | Feb 10, 2010 | Apr 9, 2010 | 14,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 25, 2010 | Eyhorn Gas Unit 1 G-2-259630 | Sugarkane (Eagle Ford) | Repsol Oil & Gas USA LLC | Temp Abandoned · shut in Dec 1, 2010 | 13,526 |
Formation tops
As filed on W-2/G-1. Subsea from 342 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 9,650 | -9,308 |
| MidwayMIDWAY SHALE | 9,650 | -9,308 |
| Austin Chalk | 13,073 | -12,731 |
| Austin Chalk | 13,090 | -12,748 |
| Eagle Ford | 13,308 | -12,966 |
| Eagle Ford | 13,545 | -13,203 |
| Eagle FordEAGLEFORD | 13,545 | -13,203 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 15,995 | 18,258 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,050 | 17.5 | 995 S |
| 9.625 | 4,547 | 13.375 | 1,675 S |
| 5.5 | 18,313 | 9.625 | 2,455 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 | Jul 13, 2016 | Apr 3, 2012 | — |
| 00 | Apr 10, 2012 | Nov 15, 2010 | — |
| 00 | May 17, 2011 | Sep 2, 2010 | Yes |
| 00 | Apr 25, 2011 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Jul 3, 2013. Resistivity, Sonic. 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 |
|---|---|---|---|---|
| ACOUSTIC POROSITYSpans Midway | TIFF | 0 to 11,050 | May 21, 2013run Jul 12, 2010 | 13.8 |
| RESISTIVITYSpans Midway, Austin Chalk, Eagle Ford | TIFF | 6,500 to 18,340 | Jul 3, 2013run May 12, 2010 | 0.95 |
"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 42-255-31650 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31650 → 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/25531650, documented in the API reference.