TEXAS · WELLS · KARNES COUNTY · API 42-255-36221 · DISTRICT 02
Emerson Unit #4H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Emerson Unit #4H (API 42-255-36221) is a horizontal well in Karnes County operated by Eog Resources Inc., completed April 15, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 6, 2018, permitted to 11,388 ft.
Completion filings report 11 formation tops, including Yegua, Queen City, Reklaw, Wilcox.
Its 2 leases have reported 470K barrels of oil and 1.02M mcf of gas since July 2014, last reporting volume in April 2026. The leases carry 6 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.Nov 6, 2018 |
- 11,388
- total depth, ft
- 1
- permits on file
- Nov 6, 2018
- last permit issued
- Apr 15, 2019
- completed
- 470K
- cumulative oil, bbl
- 1.02M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2014 THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 15, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
29.120397, -97.700050 NAD27, as filed
29.120645, -97.700325 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Karnes County.
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 APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Emerson Unit G-2-296292 | Eagleville (Eagle Ford-2) | EOG Resources, Inc. | 1 | 150K | 281K | Apr 2019 – Apr 2026 |
| Emerson Unit O-2-10899 | Eagleville (Eagle Ford-2) | EOG Resources, Inc. | 5 | 320K | 743K | Jul 2014 – Jan 2020 |
Gas, mcf lease total
Last 12 months 24,591 · prior 12 20,031(+23%)
Wells named Emerson Unit
EOG Resources Inc.'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.
- 1EOG Resources, Inc.Jul 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 846540-99 | Drill | EOG Resources, Inc. | Nov 6, 2018 | Nov 6, 2018 | Dec 7, 2018 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 15, 2019 | Emerson Unit G-2-296292 | Eagleville (Eagle Ford-2) | EOG Resources Inc. | Producing | 11,388 |
| Apr 15, 2019 | Emerson Unit O-2-10899 | Eagleville (Eagle Ford-2) | EOG Resources Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 434 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 1,304 | -870 |
| Queen City | 2,698 | -2,264 |
| Reklaw | 3,094 | -2,660 |
| WilcoxWILCOX - DISPOSAL | 3,804 | -3,370 |
| Carrizo | 3,858 | -3,424 |
| Anacacho | 10,273 | -9,839 |
| Austin ChalkAUSTIN CHALK - H2S | 10,648 | -10,214 |
| Eagle FordEAGLE FORD - H2S | 11,062 | -10,628 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,514 | 16,554 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,080 | 12.25 | 1,752 S |
| 6 | 16,608 | 8.5 | 1,850 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 | Feb 13, 2024 | Jan 29, 2024 | Yes |
| 00 | Jun 11, 2019 | Jun 5, 2019 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Dec 28, 2021. Gamma ray. 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 |
|---|---|---|---|---|
| Gamma RaySpans Carrizo, Anacacho, Austin Chalk, Eagle Ford | LAS + TIFF | 8,987 to 16,618 | Dec 28, 2021 | 0.40 + 1.77 |
"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 42-255-36221 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-36221 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.
Open the cross-section →Emerson Unit42-255-36220
0.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 1,303 | -869 |
| Queen City | 2,697 | -2,263 |
| Reklaw | 3,093 | -2,659 |
| Wilcox | 3,803 | -3,369 |
| Carrizo | 3,857 | -3,423 |
| Austin Chalk | 10,657 | -10,223 |
| Eagle Ford | 11,080 | -10,646 |
| Frio | — |
10 TOPS · FIRST 8
Emerson Unit42-255-36236
0.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 1,303 | -869 |
| Queen City | 2,697 | -2,263 |
| Reklaw | 3,093 | -2,659 |
| Wilcox | 3,803 | -3,369 |
| Carrizo | 3,857 | -3,423 |
| Austin Chalk | 10,619 | -10,185 |
| Eagle Ford | 11,040 | -10,606 |
| Frio | — |
10 TOPS · FIRST 8
Emerson Unit42-255-36219
0.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 1,304 | -870 |
| Queen City | 2,698 | -2,264 |
| Reklaw | 3,094 | -2,660 |
| Wilcox | 3,804 | -3,370 |
| Carrizo | 3,858 | -3,424 |
| Anacacho | 10,306 | -9,872 |
| Austin Chalk | 10,675 | -10,241 |
| Eagle Ford | 11,101 | -10,667 |
10 TOPS · FIRST 8
Palmer Unit42-255-36325
2.0 KM · EOG Resources, Inc. · Section with this well →
| Wilcox | 311 | 71 |
| Yegua | 811 | -429 |
| Queen City | 2,205 | -1,823 |
| Reklaw | 2,601 | -2,219 |
| Carrizo | 3,365 | -2,983 |
| Anacacho | 9,751 | -9,369 |
| Austin Chalk | 10,090 | -9,708 |
| Eagle Ford | 10,546 | -10,164 |
10 TOPS · FIRST 8
Palmer Unit42-255-36326
2.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 817 | -436 |
| Queen City | 2,211 | -1,830 |
| Reklaw | 2,607 | -2,226 |
| Wilcox | 3,317 | -2,936 |
| Carrizo | 3,371 | -2,990 |
| Anacacho | 9,752 | -9,371 |
| Austin Chalk | 10,074 | -9,693 |
| Eagle Ford | 10,549 | -10,168 |
10 TOPS · FIRST 8
Halen A42-255-36327
2.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 810 | -430 |
| Queen City | 2,204 | -1,824 |
| Reklaw | 2,600 | -2,220 |
| Wilcox | 3,310 | -2,930 |
| Carrizo | 3,364 | -2,984 |
| Anacacho | 9,744 | -9,364 |
| Austin Chalk | 10,082 | -9,702 |
| Eagle Ford | 10,532 | -10,152 |
10 TOPS · FIRST 8
Halen B42-255-36328
2.0 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 813 | -433 |
| Queen City | 2,207 | -1,827 |
| Reklaw | 2,603 | -2,223 |
| Wilcox | 3,313 | -2,933 |
| Carrizo | 3,367 | -2,987 |
| Anacacho | 9,733 | -9,353 |
| Austin Chalk | 10,075 | -9,695 |
| Eagle Ford | 10,526 | -10,146 |
10 TOPS · FIRST 8
Korth B Unit42-255-35464
2.1 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 1,298 | -840 |
| Queen City | 3,310 | -2,852 |
| Reklaw | 3,600 | -3,142 |
| Carrizo | 4,042 | -3,584 |
| Wilcox | 5,751 | -5,293 |
| Austin Chalk | 10,593 | -10,135 |
| Sligo | — | |
| Frio | — |
10 TOPS · FIRST 8
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/25536221, documented in the API reference.