WELL · 42-283-35478 · DISTRICT 1
Naylor Jones Unit 57 #4H
LA Salle County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Naylor Jones Unit 57 #4H (API 42-283-35478) is a horizontal well in La Salle County operated by Eog Resources Inc., completed November 15, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 11, 2015, permitted to 11,700 ft.
Completion filings report 10 formation tops, including Yegua, Sparta, Queen City, Wilcox.
Its lease has reported 923K barrels of oil and 2.4M mcf of gas since August 2014, last reporting in July 2026. The lease carries 5 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
- 16,348
- 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.May 11, 2015 |
- 11,700
- total depth, ft
- 1
- permits on file
- May 11, 2015
- last permit issued
- Nov 15, 2015
- completed
- 923K
- cumulative oil, bbl
- 2.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 15, 2015
- Shut in
- —
- 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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Naylor Jones Unit 57 O-1-18043 | Eagleville (Eagle Ford-1) | EOG Resources, Inc. | 5 | 923K | 2.4M | Aug 2014 – Jul 2026 |
Oil, barrels lease total
Last 12 months 9,129 · prior 12 9,375(-3%)
Gas, mcf lease total
Last 12 months 28,680 · prior 12 50,822(-44%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Aug 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 806309-99 | Drill | EOG Resources, Inc. | May 7, 2015 | May 11, 2015 | Aug 20, 2015 | 11,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-18043 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 397 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 645 | -248 |
| Sparta | 1,378 | -981 |
| Queen City | 1,664 | -1,267 |
| WilcoxWILCOX - DISPOSAL | 3,029 | -2,632 |
| Escondido | 6,486 | -6,089 |
| OlmosOLMOS - DISPOSAL | 8,091 | -7,694 |
| Anacacho | 9,551 | -9,154 |
| Austin Chalk | 10,033 | -9,636 |
| Eagle FordEAGLE FORD - H2S | 10,078 | -9,681 |
| BudaBUDA - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,350 | 17,694 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,631 | 12.25 | 1,190 S |
| 5.5 | 17,384 | 8.5 | 2,305 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 9, 2016 | Jan 14, 2016 | Yes |
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 42-283-35478 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-35478 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/28335478, documented in the API reference.