← Wells

42-311-37411

PRODUCING Horizontal

CRX YBAR

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

Permits

1

Max Depth

14,000 ft

First Permit

2023-08-30

Latest Activity

2023-08-30

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-12-14

Shut-In

—

Plugged

—

P-5 Org Status: X

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2022-05

Last Production

2026-07

Lease Production

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

Oil
production & DCA →

Formation Tops (10) Elevation 323 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANACACHO 9,227 ft-8,904 ft
EAGLE FORD - H2S (Eagle Ford)9,867 ft-9,544 ft
AUSTIN CHALK 9,969 ft-9,646 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
✓ 42-311-37412 CRX YBAR · CASTLEROCK EF OPERATING LLC
0.0 mi
Anacacho 9,238'Austin Chalk 9,839'Eagle Ford 9,882'Catahoula —Frio —Yegua —Wilcox —Olmos —Navarro —Escondido —
✓ 42-311-37413 CRX YBAR A · CASTLEROCK EF OPERATING LLC
0.0 mi
Anacacho 9,275'Austin Chalk 9,857'Eagle Ford 9,897'Olmos —Catahoula —Navarro —Escondido —Frio —Yegua —Wilcox —
✓ 42-311-37000 RIVER LOWE RANCH · EOG RESOURCES, INC.
0.2 mi
Yegua 422'Wilcox 2,944'Carrizo 3,038'Escondido 6,542'Navarro 6,542'Olmos 7,674'Anacacho 9,286'Austin Chalk 9,813'Eagle Ford 9,900'Frio —Catahoula —
✓ 42-311-36999 RIVER LOWE RANCH · EOG RESOURCES, INC.
0.2 mi
Yegua 418'Wilcox 2,940'Escondido 6,536'Navarro 6,536'Olmos 7,669'Anacacho 9,269'Austin Chalk 9,811'Eagle Ford 9,879'Catahoula —Frio —
✓ 42-311-36998 RIVER LOWE RANCH · EOG RESOURCES, INC.
0.2 mi
Yegua 411'Wilcox 2,933'Navarro 6,530'Escondido 6,530'Olmos 7,662'Anacacho 9,282'Austin Chalk 9,802'Eagle Ford 9,849'Catahoula —Frio —
✓ 42-311-37218 CRX YBAR · CASTLEROCK EF OPERATING LLC
0.4 mi
Anacacho 9,731'Austin Chalk 9,809'Eagle Ford 9,850'Catahoula —Yegua —Wilcox —Olmos —Navarro —Escondido —Frio —
✓ 42-311-37217 CRX YBAR · CASTLEROCK EF OPERATING LLC
0.4 mi
Anacacho 9,721'Austin Chalk 9,799'Eagle Ford 9,840'Yegua —Navarro —Escondido —Frio —Catahoula —Wilcox —Olmos —
✓ 42-311-36763 RIVER LOWE RANCH · EOG RESOURCES, INC.
0.4 mi
Yegua 467'Wilcox 2,989'Carrizo 3,083'Navarro 6,585'Olmos 7,717'Anacacho 9,341'Austin Chalk 9,852'Eagle Ford 9,893'Catahoula —Frio —Escondido —

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
10,140–19,530 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,282 ft1,035 sx
5.5"19,630 ft2,845 sx

Permit History (1)

#893209 Drill Final Completion

CRX YBAR · 14,000 ft

2023-08-30

Spud 2023-09-13

Applications (1)

#893209 A CASTLEROCK EF OPERATING LLC
received 2023-08-24

Records & Logs

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

W-2/G-1 2024-02-19 log on file
Completion packets + logs ↗ Wellbore filings ↗

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.

Google Maps → Explorer Map →
Lat 28.498098
Lon -98.761719

Well Details

Well Number
8H
Max Depth
14,000 ft
Drill Type
Horizontal
County
MCMULLEN
District
1
Operator
CASTLEROCK EF OPERATING LLC
Completed
2023-12-14

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