← Wells

42-227-35322

Final Completion

CHALK OTIS /EO/

HOWARD County · District 8 · CIMAREX ENERGY CO. OF COLORADO · HOWARD GLASSCOCK

Permits

2

Max Depth

3,400 ft

First Permit

1998-11-20

Latest Activity

1998-11-20

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1998-12-29

Shut-In

—

Plugged

—

!

EWA / Production operator mismatch

Scheduling: CIMAREX ENERGY CO. OF COLORADO ≠ Production: GRAYROCK ENERGY II, LLC (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: CIMAREX ENERGY CO. OF COLORADO ≠ Permit: PRIZE OPERATING COMPANY

Resolved via: production → GRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

HOWARD County disposal market →
H-1 Injection Active UIC #000088667 permitted 2001-05-04

Permitted Volume

1,000 bbl/d

Max Pressure

1,000 psi

Injection Interval

2,200–3,300 ft

Injected (12mo)

—

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

Operator History

Chain of Custody

WOOD, MCSHANE & THAMS 1993-1995→ VISTA RESOURCES, INC. (A) 1995-2000→ PRIZE OPERATING COMPANY 2000-2002→ GRUY PETROLEUM MANAGEMENT CO. 2002-2006→ CIMAREX ENERGY CO. OF COLORADO 2006-2012→ MERIT ENERGY COMPANY 2013-2017→ ROVER PETROLEUM OPERATING, LLC 2017-2023→ GRAYROCK ENERGY II, LLC 2024-2026

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (1) Elevation 2,654 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GLORIETA 2,856 ft-202 ft

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 ↗

Perforations (1)

IntervalType
2,866–3,286 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"390 ft250 sx
4.5"3,348 ft850 sx

Permit History (2)

#480812 Drill Final Completion

CHALK, OTIS /EO/ · 3,400 ft

1998-11-20

#480812 Drill

CHALK, OTIS "EO" · 3,000 ft

1998-11-20

Spud 1998-12-14

Applications (2)

#480812 A PRIZE OPERATING COMPANY
received 2002-01-29
#480812 A VISTA RESOURCES, INC. (A)
received 1998-11-12

Records & Logs

3 completion filings on record.

W-2/G-1 1999-01-11
W-2/G-1 1999-01-11
W-2/G-1 2002-02-20
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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in HOWARD County.

Well Details

Well Number
1W
Max Depth
3,400 ft
Drill Type
Vertical
County
HOWARD
District
8
Operator
CIMAREX ENERGY CO. OF COLORADO
Completed
1998-12-29

Operator

Location
MIDLAND
P-5 Status
Delinquent (filed 2025-04-28)
Cum Oil (all leases)
23,631,926 bbl
Cum Gas (all leases)
190,164,266 mcf
Activities
OPRS/G, OPRS/O
Total Permits
476