42-501-36768

Final Completion Horizontal

LAZY HORSE 581

YOAKUM County · District 8 · RILEY PERMIAN OPERATING CO LLC · SABLE (SAN ANDRES)

Permits

2

Max Depth

9,000 ft

First Permit

2017-03-17

Latest Activity

2017-11-03

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2017-05-09

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2017-04

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 (13) Elevation 3,737 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RED BED-SANTA ROSA (Santa Rosa)2,174 ft+1,563 ft
YATES 3,154 ft+583 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,634 ft-897 ft
CLEARFORK - ACTIVE CO2 FLOOD (Clear Fork)
DEVONIAN
DEVONIAN-SILURIAN (Devonian)
GLORIETA
LEONARD
MISSISSIPPIAN
PENNSYLVANIAN
STRAWN
WICHITA (Wichita-Albany)
WOLFCAMP

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
42-501-36767 DESPERADO W 538 · RILEY PERMIAN OPERATING CO, LLC
0.0 mi
Santa Rosa 2,174'Yates 3,154'San Andres 4,634'Wolfcamp Wichita-Albany Clear Fork Glorieta Strawn Pennsylvanian Leonard
42-501-36834 DESPERADO 538 · RILEY PERMIAN OPERATING CO, LLC
0.1 mi
Santa Rosa 2,156'Yates 3,139'San Andres 4,626'Glorieta Leonard Wichita-Albany Pennsylvanian Wolfcamp Clear Fork Strawn
42-501-36831 LAZY HORSE 581-600 · RILEY PERMIAN OPERATING CO, LLC
0.1 mi
Santa Rosa 2,162'Yates 3,134'San Andres 4,624'Leonard Glorieta Wichita-Albany Pennsylvanian Wolfcamp Clear Fork Strawn
42-501-37283 WHITEPORT 537 · STEWARD ENERGY II, LLC
0.4 mi
Santa Rosa 1,100'Yates 3,238'San Andres 4,635'Leonard Wolfcamp Clear Fork Strawn Pennsylvanian Glorieta Wichita-Albany
42-501-36962 DESPERADO E 538 · RILEY PERMIAN OPERATING CO, LLC
0.4 mi
Santa Rosa 2,151'Yates 3,132'San Andres 4,624'Wichita-Albany Glorieta Pennsylvanian Leonard Strawn Clear Fork Wolfcamp
42-501-36963 LAZY HORSE 581 · RILEY PERMIAN OPERATING CO, LLC
0.5 mi
Santa Rosa 400'Yates 3,120'San Andres 4,580'Glorieta Leonard Wichita-Albany Pennsylvanian Wolfcamp Clear Fork Strawn
42-501-36965 LAZY HORSE 581-600 'C' · RILEY PERMIAN OPERATING CO, LLC
0.5 mi
Santa Rosa 400'Yates 3,120'San Andres 4,580'Leonard Glorieta Wichita-Albany Pennsylvanian Wolfcamp Clear Fork Strawn
42-501-37025 WHITEPORT 537 · STEWARD ENERGY II, LLC
0.6 mi
Santa Rosa 1,100'Yates 3,143'San Andres 4,595'Pennsylvanian Leonard Clear Fork Strawn Wolfcamp Glorieta Wichita-Albany

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 (2)

IntervalType
5,497–10,744 ftPerforated
5,794–10,744 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"2,199 ft890 sx
5.5"10,840 ft1,685 sx

Permit History (2)

Applications (2)

#830655 A RILEY PERMIAN OPERATING CO, LLC
received 2017-09-05
#822338 A RILEY EXPLORATION OPG CO, LLC
received 2017-01-20

Records & Logs

4 completion filings on record · 1 with log images at RRC.

W-2/G-1 2022-01-04
W-2/G-1 2018-07-26
W-2/G-1 2017-09-20
W-2/G-1 2017-08-09 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 33.123839
Lon -102.989642

Well Details

Well Number
4XH
Max Depth
9,000 ft
Drill Type
Horizontal
County
YOAKUM
District
8
Completed
2017-05-09

Operator

Location
OKLAHOMA CI, TY
P-5 Status
X (filed 2026-04-16)
Cum Oil (all leases)
31,166,202 bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/O
Total Permits
274