TEXAS · WELLS · LA SALLE COUNTY · NAYLOR JONES UNIT 21 EAST LEASE · API 42-283-35362 · DISTRICT 01

Naylor Jones Unit 21 East #1H

Y

La Salle County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Naylor Jones Unit 21 East #1H (API 42-283-35362) is a horizontal well in La Salle County operated by Eog Resources Inc., completed July 1, 2015 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 11, 2015, permitted to 9,785 ft.

Completion filings report 10 formation tops, including Escondido, Yegua, Sparta, Queen City.

Its lease has reported 325K barrels of oil and 731K mcf of gas since June 2015, last reporting volume in April 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

EOG Resources Inc.

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 scheduleEOG Resources Inc.
Production reportsEOG Resources, Inc.through Apr 2026
Latest permitEOG Resources, Inc.Feb 11, 2015
9,785
total depth, ft
1
permits on file
Feb 11, 2015
last permit issued
Jul 1, 2015
completed
325K
cumulative oil, bbl
731K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2015 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 1, 2015
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 lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Naylor Jones Unit 21 East O-1-18510Eagleville (Eagle Ford-1)EOG Resources, Inc.2325K731KJun 2015 – Apr 2026

Oil, barrels lease total

Last 12 months 3,602 · prior 12 6,197(-42%)

05001K202420252026

Gas, mcf lease total

Last 12 months 11,636 · prior 12 31,733(-63%)

02K4K6K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1EOG Resources, Inc.Jul 2015 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
803517-99DrillEOG Resources, Inc.Feb 4, 2015Feb 11, 2015Apr 23, 201511,300

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 1, 2015Naylor Jones Unit 21 East O-1-18510Eagleville (Eagle Ford-1)EOG Resources Inc.Producing9,785

Formation tops

As filed on W-2/G-1. Subsea from 306 ft elevation.Download CSV →

FormationMD ftSubsea
Escondido367-61
Yegua600-294
Sparta1,069-763
Queen City1,268-962
WilcoxWILCOX - DISPOSAL2,760-2,454
OlmosOLMOS - DISPOSAL7,517-7,211
AnacachoANACACHO - H2S8,953-8,647
Austin Chalk9,499-9,193
Eagle FordEAGLE FORD - H2S9,565-9,259
BudaBUDA - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
9,97215,083Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6254,14112.251,357 S
5.515,1678.51,959 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Nov 5, 2015Aug 18, 2015Yes

Well logs

1 log loaded from the RRC's log index, the latest received Feb 16, 2016. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans Olmos, Anacacho, Austin Chalk, Eagle FordTIFF8,700 to 14,768Feb 16, 2016run Apr 29, 20150.79

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/28335362, documented in the API reference.