42-329-42220

SHUT IN

WILLIS 40B

MIDLAND County · District 8 · OXYROCK OPERATING LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

12,000 ft

First Permit

2018-01-19

Latest Activity

2018-01-19

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-04-05

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: OXYROCK OPERATING LLC ≠ Permit: CROWNQUEST OPERATING, LLC

Resolved via: productionOXYROCK OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2018-03

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 2,697 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,508 ft+189 ft
GRAYBURG 4,199 ft-1,502 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,564 ft-1,867 ft
GLORIETA 5,578 ft-2,881 ft
SPRABERRY 7,398 ft-4,701 ft
SPRABERRY UPPER-DEAN (Spraberry)8,778 ft-6,081 ft
CLEARFORK (Clear Fork)
QUEEN
SANTA ROSA
SEVEN RIVERS

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
42-329-42741 HORTON '40' · MID-STATES OPERATING COMPANY
0.3 mi
Santa Rosa 1,000'Yates 2,496'Seven Rivers 2,828'Queen 3,585'Grayburg 4,185'San Andres 4,276'Glorieta Spraberry Clear Fork Spraberry
42-329-41969 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.3 mi
Yates 2,516'Grayburg 4,224'San Andres 4,800'Canyon Ellenburger Santa Rosa Pennsylvanian Seven Rivers Fusselman Queen
42-329-42212 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.4 mi
Yates 2,524'Grayburg 4,206'San Andres 4,785'Glorieta 5,591'Clear Fork 6,580'Spraberry 7,417'Spraberry 8,790'Seven Rivers Queen Santa Rosa
42-329-42216 WILLIS 40B · CROWNQUEST OPERATING, LLC
0.6 mi
Yates 2,521'Grayburg 4,164'San Andres 4,742'Glorieta 5,571'Clear Fork 6,557'Spraberry 7,400'Spraberry 8,771'Santa Rosa Queen Seven Rivers
42-329-42940 DONOVAN C · DE3 OPERATING LLC
1.0 mi
Santa Rosa 1,000'Seven Rivers 1,300'Yates 2,445'Queen 3,700'Grayburg 4,023'San Andres 4,300'Glorieta 5,517'Clear Fork 6,568'Spraberry 7,391'Spraberry 8,777'
42-329-46710 DONOVAN 2N · PIONEER NATURAL RES. USA, INC.
1.1 mi
Santa Rosa 976'Rustler 1,594'Yates 2,523'Seven Rivers 2,805'Queen 3,507'Grayburg 4,071'San Andres 4,286'Clear Fork 6,601'Spraberry 7,428'Glorieta
42-329-46718 DONOVAN 2M · PIONEER NATURAL RES. USA, INC.
1.1 mi
Santa Rosa 976'Rustler 1,573'Yates 2,519'Seven Rivers 2,801'Queen 3,507'Grayburg 4,072'San Andres 4,290'Clear Fork 6,591'Spraberry 7,420'Glorieta
42-329-46717 DONOVAN 2L · PIONEER NATURAL RES. USA, INC.
1.1 mi
Santa Rosa 976'Rustler 1,574'Yates 2,517'Seven Rivers 2,801'Queen 3,509'Grayburg 4,062'San Andres 4,280'Clear Fork 6,607'Spraberry 7,435'Glorieta

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
8,968–11,552 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"330 ft380 sx
8.625"5,725 ft1,325 sx
5.5"11,690 ft1,000 sx

Permit History (1)

Applications (1)

#835017 A CROWNQUEST OPERATING, LLC
received 2018-01-10

Records & Logs

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

W-2/G-1 2019-07-02 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 31.880006
Lon -101.930515

Well Details

Well Number
8
Max Depth
12,000 ft
Drill Type
Vertical
County
MIDLAND
District
8
Completed
2019-04-05

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-04-22)
Cum Oil (all leases)
64,850,483 bbl
Cum Gas (all leases)
77,830 mcf
Activities
OPRS/G, OPRS/O
Total Permits
364