TEXAS · WELLS · KARNES COUNTY · API 42-255-31741 · DISTRICT 02
Dullnig Unit #4H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Dullnig Unit #4H (API 42-255-31741) is a horizontal well in Karnes County operated by Eog Resources Inc., completed December 14, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued September 10, 2010, permitted to 10,964 ft.
Completion filings report 6 formation tops, including Midway, Navarro, Olmos, Anacacho.
Its 3 leases have reported 3.81M barrels of oil and 5.59M mcf of gas since April 2010, last reporting volume in April 2026. The leases carry 24 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.Sep 10, 2010 |
- 10,964
- total depth, ft
- 3
- permits on file
- Sep 10, 2010
- last permit issued
- Dec 14, 2010
- completed
- 3.81M
- cumulative oil, bbl
- 5.59M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 14, 2010
- 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 3 leases this well is completed on; they carry 24 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Dullnig Unit O-2-9491 | Eagleville (Eagle Ford-2) | EOG Resources, Inc. | 18 | 3.75M | 5.56M | Dec 2010 – Apr 2026 |
| Peeler Ranch Unit O-2-9420 | Eagleville (Eagle Ford) | EOG Resources, Inc. | 4 | 60.8K | 30.3K | Apr 2010 – Nov 2010 |
| Dullnig Unit O-2-9490 | Eagleville (Eagle Ford) | EOG Resources, Inc. | 2 | 0 | 0 | Dec 2010 – — |
Oil, barrels lease total
Last 12 months 39,911 · prior 12 47,267(-16%)
Gas, mcf lease total
Last 12 months 43,165 · prior 12 51,517(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Jun 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 701698-97 | Drill | EOG Resources, Inc. | Oct 4, 2010 | Sep 10, 2010 | Oct 28, 2010 | 12,000 |
| 701698-98 | Drill | EOG Resources, Inc. | Sep 15, 2010 | Sep 10, 2010 | — | 12,000 |
| 701698-99 | Drill | EOG Resources, Inc. | Sep 2, 2010 | Sep 10, 2010 | Oct 27, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 14, 2010 | Dullnig Unit O-2-9491 | Eagleville (Eagle Ford-2) | EOG Resources Inc. | Producing | 10,964 |
| — | Dullnig Unit O-2-9490 | Eagleville (Eagle Ford) | EOG Resources Inc. | Not on Schedule | — |
| — | Peeler Ranch Unit O-2-9420 | Eagleville (Eagle Ford) | EOG Resources Inc. | Not on Schedule | — |
| — | Dullnig Unit O-2-9491 | Eagleville (Eagle Ford-2) | EOG Resources Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 352 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,681 | -6,329 |
| Navarro | 7,751 | -7,399 |
| Olmos | 8,381 | -8,029 |
| Anacacho | 9,537 | -9,185 |
| Anacacho | 9,581 | -9,229 |
| Austin Chalk | 9,849 | -9,497 |
| Austin Chalk | 9,904 | -9,552 |
| Eagle FordEAGLEFORD | 10,258 | -9,906 |
| Eagle FordEAGLEFORD | 10,291 | -9,939 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,015 | 15,083 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,099 | 12.25 | 915 S |
| 5.5 | 15,488 | 8.75 | 2,040 S |
| 5.5 | 15,488 | — | — |
| 9.625 | — | 12.25 | 495 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 | Apr 3, 2012 | Jan 13, 2011 | — |
| 00 | Mar 11, 2011 | Dec 30, 2010 | — |
| 00 | Feb 28, 2011 | Dec 22, 2010 | Yes |
| 00 | Feb 17, 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 42-255-31741 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31741 → 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/25531741, documented in the API reference.