TEXAS · WELLS · KARNES COUNTY · API 42-255-31637 · DISTRICT 02
Harper Unit #4H
Karnes County · Eagleville (Eagle Ford-2) field · Shut In · Horizontal
Harper Unit #4H (API 42-255-31637) is a horizontal well in Karnes County operated by Eog Resources Inc., completed April 5, 2010 and listed as shut in on the RRC schedule, shut in June 1, 2020.
The RRC has issued one drilling permit (amended once), issued December 15, 2009, permitted to 10,394 ft.
Completion filings report 5 formation tops, including Midway, Navarro, Olmos, Anacacho.
Its 2 leases have reported 4.31M barrels of oil and 9.32M mcf of gas since October 2009, last reporting volume in April 2026. The leases carry 32 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 2, 2025
- Permits on file
- 16,354
- Phone
- (713) 651-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EOG Resources Inc. |
| Production reports | EOG Resources, Inc.through Apr 2026 |
| Latest permit | EOG Resources, Inc.Dec 15, 2009 |
- 10,394
- total depth, ft
- 2
- permits on file
- Dec 15, 2009
- last permit issued
- Apr 5, 2010
- completed
- 4.31M
- cumulative oil, bbl
- 9.32M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 5, 2010
- Shut in
- Jun 1, 2020
- 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 2 leases this well is completed on; they carry 32 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Harper Unit O-2-9508 | Eagleville (Eagle Ford-2) | EOG Resources, Inc. | 23 | 4.05M | 9.02M | Dec 2010 – Apr 2026 |
| Harper Unit O-2-9379 | Eagleville (Eagle Ford) | EOG Resources, Inc. | 9 | 251K | 297K | Oct 2009 – Nov 2010 |
Oil, barrels lease total
Last 12 months 75,561 · prior 12 87,337(-13%)
Gas, mcf lease total
Last 12 months 289,962 · prior 12 347,641(-17%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Jan 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 688679-98 | Drill | EOG Resources, Inc. | Dec 31, 2009 | Dec 15, 2009 | Mar 25, 2010 | 12,000 |
| 688679-99 | Drill | EOG Resources, Inc. | Dec 15, 2009 | Dec 15, 2009 | Feb 19, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 5, 2010 | Harper Unit O-2-9508 | Eagleville (Eagle Ford-2) | EOG Resources Inc. | Shut In · shut in Jun 1, 2020 | 10,394 |
| Apr 5, 2010 | Harper Unit O-2-9379 | Eagleville (Eagle Ford) | EOG Resources Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 304 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,698 | -6,394 |
| Navarro | 7,628 | -7,324 |
| Olmos | 8,418 | -8,114 |
| Anacacho | 9,790 | -9,486 |
| Eagle FordEAGLEFORD | 10,410 | -10,106 |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,422 | 12.25 | 1,345 S |
| 5.5 | 12,878 | 8.5 | 1,877 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 | Mar 16, 2011 | May 13, 2010 | Yes |
| 00 | Jul 29, 2010 | May 13, 2010 | Yes |
| 00 | Jun 7, 2010 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 2, 2013. 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 Midway, Navarro, Olmos, Anacacho, Eagle Ford | TIFF | 4,433 to 12,878 | Apr 2, 2013run Mar 10, 2010 | 1.00 |
"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 42-255-31637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31637 → 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/25531637, documented in the API reference.