TEXAS · WELLS · MCMULLEN COUNTY · NAYLOR JONES UNIT 31 LEASE · API 42-311-36553 · DISTRICT 01
Naylor Jones Unit 31 #1H
McMullen County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Naylor Jones Unit 31 #1H (API 42-311-36553) is a horizontal well in Mcmullen County operated by Eog Resources Inc., completed November 11, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 23, 2015, permitted to 9,982 ft.
Completion filings report 10 formation tops, including Catahoula, Frio, Yegua, Wilcox.
Its lease has reported 1.72M barrels of oil and 2.76M mcf of gas since November 2015, last reporting volume in April 2026. The lease carries 7 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.Jul 23, 2015 |
- 9,982
- total depth, ft
- 1
- permits on file
- Jul 23, 2015
- last permit issued
- Nov 11, 2015
- completed
- 1.72M
- cumulative oil, bbl
- 2.76M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2015 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 11, 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.
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 lease this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Naylor Jones Unit 31 O-1-18668 | Eagleville (Eagle Ford-1) | EOG Resources, Inc. | 7 | 1.72M | 2.76M | Nov 2015 – Apr 2026 |
Oil, barrels lease total
Last 12 months 101,404 · prior 12 129,253(-22%)
Gas, mcf lease total
Last 12 months 234,837 · prior 12 168,681(+39%)
Wells named Naylor Jones Unit 31
EOG Resources Inc.'s other wells filed under this lease name in McMullen 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.Nov 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 808477-99 | Drill | EOG Resources, Inc. | Jul 16, 2015 | Jul 23, 2015 | Oct 6, 2015 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 11, 2015 | Naylor Jones Unit 31 O-1-18668 | Eagleville (Eagle Ford-1) | EOG Resources Inc. | Producing | 9,982 |
Formation tops
As filed on W-2/G-1. Subsea from 362 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CatahoulaCATAHOULA - DISPOSAL | 45 | 317 |
| FrioFRIO - DISPOSAL | 50 | 312 |
| YeguaYEGUA - DISPOSAL | 500 | -138 |
| WilcoxWILCOX - DISPOSAL | 3,050 | -2,688 |
| Navarro | 6,505 | -6,143 |
| Olmos | 7,795 | -7,433 |
| Anacacho | 9,481 | -9,119 |
| Austin Chalk | 9,955 | -9,593 |
| Eagle FordEAGLE FORD - H2S | 10,021 | -9,659 |
| Escondido | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,290 | 18,520 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,600 | 12.25 | 1,359 S |
| 5.5 | 18,522 | 8.5 | 2,619 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 25, 2016 | Jan 4, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 15, 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 described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Olmos, Anacacho, Austin Chalk, Eagle Ford | TIFF | 9,100 to 18,727 | Mar 15, 2016run Oct 14, 2015 | 1.26 |
"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 42-311-36553 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-36553 → 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/31136553, documented in the API reference.