42-227-39867

SHUT IN

CHALK G. O.

HOWARD County · District 8 · GRAYROCK ENERGY II LLC · HOWARD GLASSCOCK (CONSOLIDATED)

Permits

1

Max Depth

4,200 ft

First Permit

2018-11-19

Latest Activity

2018-11-19

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-12-01

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: GRAYROCK ENERGY II LLC ≠ Permit: ROVER PETROLEUM OPERATING, LLC

Resolved via: productionGRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2011-12

Last Production

2026-07

H-1 Injection Inactive UIC #000118128 permitted 2019-04-11

Permitted Volume

2,000 bbl/d

Max Pressure

1,500 psi

Injection Interval

3,000–3,900 ft

Injected (12mo)

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Seismicity: 14 earthquakes M2+ within 10 km in the last 24 months (max M2.6) · TexNet catalog

Lease Production

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

Formation Tops (10) Elevation 2,430 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SEVEN RIVERS 1,301 ft+1,129 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)2,062 ft+368 ft
GLORIETA 2,650 ft-220 ft
CLEARFORK - SEVERE WATER FLOWS (Clear Fork)2,929 ft-499 ft
CISCO
COLEMAN JUNCTION
DEAN
LEONARD
SPRABERRY
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
42-227-39678 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.1 mi
Yates 1,168'Seven Rivers 1,254'San Andres 2,052'Glorieta 2,634'Clear Fork 2,902'Dean Leonard Wolfcamp Spraberry Coleman Junction
42-227-39679 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.1 mi
Canyon Spraberry Leonard Pennsylvanian Atoka Wolfcamp Cisco Dean Strawn Mississippian
42-227-39674 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.1 mi
Ellenburger Leonard Pennsylvanian Atoka Wolfcamp Cisco Dean Strawn Mississippian Canyon
42-227-39903 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.1 mi
Yates 1,233'Seven Rivers 1,320'San Andres 2,100'Glorieta 2,691'Clear Fork 2,942'Leonard Wolfcamp Coleman Junction Dean Spraberry
42-227-39694 CHALK, SLOAN · CITATION OIL & GAS CORP.
0.3 mi
Tansill 1,043'Yates 1,168'Seven Rivers 1,257'Queen 1,452'Grayburg 1,758'San Andres 2,063'San Andres 2,212'Glorieta 2,583'Clear Fork 2,935'Coleman Junction
42-227-39777 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.3 mi
Yates 1,256'Seven Rivers 1,340'San Andres 2,108'Glorieta 2,702'Clear Fork 2,957'Wolfcamp Dean Coleman Junction Leonard Spraberry
42-227-39812 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.4 mi
Seven Rivers 1,370'San Andres 2,113'Glorieta 2,742'Clear Fork 3,524'Coleman Junction Wolfcamp Dean Leonard Yates Spraberry
42-227-39813 CHALK, G. O. · ROVER PETROLEUM OPERATING, LLC
0.4 mi
Yates 1,255'Seven Rivers 1,346'San Andres 2,137'Glorieta 2,727'Clear Fork 2,976'Coleman Junction Spraberry Dean Wolfcamp Leonard

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).

Casing (2)

SizeSet DepthCement
8.625"1,000 ft470 sx
5.5"4,179 ft640 sx

Permit History (1)

Applications (1)

#846853 A ROVER PETROLEUM OPERATING, LLC
received 2018-11-15

Records & Logs

1 completion filing on record.

W-2/G-1 2019-03-14

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 32.125272
Lon -101.247739

Well Details

Well Number
55CF
Max Depth
4,200 ft
Drill Type
Vertical
County
HOWARD
District
8
Completed
2018-12-01

Operator

Location
FORT WORTH
P-5 Status
Active (filed 2025-10-16)
Cum Oil (all leases)
1,537,532 bbl
Cum Gas (all leases)
35,084 mcf
Activities
OPRS/G, OPRS/O