WELL · 42-311-37500 · DISTRICT 1
Y-Bar 160H Unit #160H
McMullen County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Y-Bar 160h Unit #160H (API 42-311-37500) is a horizontal well in Mcmullen County operated by Castlerock EF Operating LLC, completed September 11, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 25, 2024, permitted to 10,000 ft.
Completion filings report 9 formation tops, including Anacacho, Austin Chalk, Catahoula, Escondido.
Its lease has reported 207K barrels of oil and 226K mcf of gas since September 2024, last reporting in July 2026.
Operator of record
San Antonio, TX · P-5 Y, filed Nov 4, 2025 · 34 permits on file · (210) 688-4585
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Castlerock EF Operating LLC |
| Production reports | Castlerock EF Operating LLCthrough Apr 2026 |
| Latest permit | Castlerock EF Operating LLCSep 25, 2024 |
- 10,000
- total depth, ft
- 2
- permits on file
- Sep 25, 2024
- last permit issued
- Sep 11, 2024
- completed
- 207K
- cumulative oil, bbl
- 226K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2024 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 11, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.515672, -98.799728
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in McMullen County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Y-Bar 160H Unit O-1-21601 | Eagleville (Eagle Ford-1) | Castlerock EF Operating LLC | 1 | 207K | 226K | Sep 2024 – Jul 2026 |
Oil, barrels lease total
Last 12 months 58,464 · prior 12 148,054(-61%)
Gas, mcf lease total
Last 12 months 110,099 · prior 12 115,746(-5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Castlerock EF Operating LLCSep 2024 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 898332-98 | Drill | Castlerock EF Operating LLC | Dec 23, 2024 | Sep 25, 2024 | — | 10,000 |
| 898332-99 | Drill | Castlerock EF Operating LLC | Mar 22, 2024 | Sep 25, 2024 | May 16, 2024 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-21601 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 358 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,931 | 22,041 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,022 | 12.25 | 980 S |
| 5.5 | 22,130 | 8.75 | 3,425 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 | Jan 31, 2025 | Jan 14, 2025 | 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 42-311-37500 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-37500 → 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.
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 neighbours, subsea-aligned so they line up regardless of surface terrain.
Y-Bar 170H Unit42-311-37493
0.0 KM · Castlerock EF Operating LLC · Section with this well →
| Anacacho | 8,995 | -8,637 |
| Anacacho | 9,461 | -9,103 |
| Austin Chalk | 9,564 | -9,206 |
| Navarro | — | |
| Olmos | — | |
| Wilcox | — | |
| Catahoula | — | |
| Yegua | — |
10 TOPS · FIRST 8
Y-Bar42-311-37499
0.0 KM · Castlerock EF Operating LLC · Section with this well →
| Anacacho | 8,958 | -8,600 |
| Austin Chalk | 9,531 | -9,173 |
| Eagle Ford | 9,596 | -9,238 |
| Escondido | — | |
| Yegua | — | |
| Wilcox | — | |
| Olmos | — | |
| Navarro | — |
10 TOPS · FIRST 8
Y-Bar A42-311-37494
0.0 KM · Castlerock EF Operating LLC · Section with this well →
| Anacacho | 9,003 | -8,645 |
| Anacacho | 9,466 | -9,108 |
| Austin Chalk | 9,575 | -9,217 |
| Olmos | — | |
| Navarro | — | |
| Catahoula | — | |
| Escondido | — | |
| Frio | — |
10 TOPS · FIRST 8
Keystone D42-283-37541
0.5 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 868 | -507 |
| Sparta | 1,447 | -1,086 |
| Queen City | 1,635 | -1,274 |
| Wilcox | 3,041 | -2,680 |
| Olmos | 7,370 | -7,009 |
| Austin Chalk | 9,581 | -9,220 |
| Eagle Ford | 9,645 | -9,284 |
| Edwards | — |
10 TOPS · FIRST 8
Keystone C42-283-37540
0.5 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 852 | -491 |
| Sparta | 1,431 | -1,070 |
| Queen City | 1,619 | -1,258 |
| Wilcox | 3,025 | -2,664 |
| Carrizo | 3,026 | -2,665 |
| Olmos | 7,352 | -6,991 |
| Buda | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Keystone B42-283-37539
0.5 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 784 | -423 |
| Sparta | 1,363 | -1,002 |
| Olmos | 7,288 | -6,927 |
| Anacacho | 8,945 | -8,584 |
| Austin Chalk | 9,519 | -9,158 |
| Eagle Ford | 9,587 | -9,226 |
| Pearsall | — | |
| Buda | — |
10 TOPS · FIRST 8
Keystone A42-283-37538
0.5 KM · EOG Resources, Inc. · Section with this well →
| Yegua | 773 | -412 |
| Sparta | 1,352 | -991 |
| Queen City | 1,540 | -1,179 |
| Wilcox | 2,946 | -2,585 |
| Olmos | 7,277 | -6,916 |
| Austin Chalk | 9,501 | -9,140 |
| Eagle Ford | 9,565 | -9,204 |
| Buda | — |
10 TOPS · FIRST 8
Y-Bar42-283-37640
0.8 KM · Castlerock EF Operating LLC · Section with this well →
| Anacacho | 8,924 | -8,559 |
| Anacacho | 9,390 | -9,025 |
| Austin Chalk | 9,497 | -9,132 |
| Eagle Ford | 9,563 | -9,198 |
| Eagle Ford | 9,563 | -9,198 |
| Escondido | — | |
| Olmos | — | |
| Queen City | — |
13 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/31137500, documented in the API reference.