42-311-37494

PRODUCING Horizontal

Y-BAR A

MCMULLEN County · District 1 · CASTLEROCK EF OPERATING LLC · EAGLEVILLE (EAGLE FORD-1)

Permits

2

Max Depth

10,000 ft

First Permit

2024-03-20

Latest Activity

2024-03-20

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-09-11

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-09

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 358 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANACACHO 9,003 ft-8,645 ft
ANACACHO B (Anacacho)9,466 ft-9,108 ft
AUSTIN CHALK 9,575 ft-9,217 ft
CATAHOULA - DISPOSAL (Catahoula)
ESCONDIDO
FRIO - DISPOSAL (Frio)
NAVARRO
OLMOS
WILCOX - DISPOSAL (Wilcox)
YEGUA - DISPOSAL (Yegua)

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-311-37493 Y-BAR 170H UNIT · CASTLEROCK EF OPERATING LLC
0.0 mi
Anacacho 8,995'Anacacho 9,461'Austin Chalk 9,564'Frio Catahoula Yegua Wilcox Olmos Navarro Escondido
42-311-37500 Y-BAR 160H UNIT · CASTLEROCK EF OPERATING LLC
0.0 mi
Anacacho 8,970'Anacacho 9,438'Austin Chalk 9,545'Frio Yegua Wilcox Catahoula Navarro Escondido Olmos
42-311-37499 Y-BAR · CASTLEROCK EF OPERATING LLC
0.0 mi
Anacacho 8,958'Austin Chalk 9,531'Eagle Ford 9,596'Catahoula Navarro Escondido Frio Yegua Wilcox Olmos
42-283-37541 KEYSTONE D · EOG RESOURCES, INC.
0.3 mi
Yegua 868'Sparta 1,447'Queen City 1,635'Wilcox 3,041'Olmos 7,370'Austin Chalk 9,581'Eagle Ford 9,645'Escondido Buda Edwards
42-283-37540 KEYSTONE C · EOG RESOURCES, INC.
0.3 mi
Yegua 852'Sparta 1,431'Queen City 1,619'Wilcox 3,025'Carrizo 3,026'Olmos 7,352'Escondido Pearsall Buda Edwards
42-283-37539 KEYSTONE B · EOG RESOURCES, INC.
0.3 mi
Yegua 784'Sparta 1,363'Olmos 7,288'Anacacho 8,945'Austin Chalk 9,519'Eagle Ford 9,587'Buda Pearsall Escondido Edwards
42-283-37538 KEYSTONE A · EOG RESOURCES, INC.
0.3 mi
Yegua 773'Sparta 1,352'Queen City 1,540'Wilcox 2,946'Olmos 7,277'Austin Chalk 9,501'Eagle Ford 9,565'Edwards Escondido Buda
42-283-37640 Y-BAR · CASTLEROCK EF OPERATING LLC
0.5 mi
Anacacho 8,924'Anacacho 9,390'Austin Chalk 9,497'Eagle Ford 9,563'Eagle Ford 9,563'Escondido Queen City Yegua Sparta Wilcox Edwards Buda +1 more

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
10,216–16,966 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,078 ft980 sx
5.5"17,054 ft2,430 sx

Permit History (2)

Applications (2)

#898282 A CASTLEROCK EF OPERATING LLC
received 2025-01-14
#898282 A CASTLEROCK EF OPERATING LLC
received 2024-03-20

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2025-01-24 log on file

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Lat 28.515681
Lon -98.799603

Well Details

Well Number
180H
Max Depth
10,000 ft
Drill Type
Horizontal
County
MCMULLEN
District
1
Completed
2024-09-11

Operator

Location
SAN ANTONIO
P-5 Status
X (filed 2026-01-28)
Cum Oil (all leases)
3,530,048 bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/O
Total Permits
34