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42-173-30903

Long String Casing

KLOH

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

Permits

1

Max Depth

2,700 ft

First Permit

1978-01-04

Latest Activity

1978-01-04

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1988-05-07

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: SHENANDOAH OIL CORP.

Resolved via: production → GRAYROCK ENERGY II, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

SOUTHLAND ROYALTY COMPANY 1993-1996→ MERIDIAN OIL INC. 1996-1996→ BURLINGTON RESOURCES OIL&GAS CO. 1996-1997→ GRUY PETROLEUM MANAGEMENT CO. 1997-2006→ ORYX ENERGY COMPANY 1998-1999→ KERR-MCGEE CORPORATION 1999-1999→ KERR-MCGEE OIL & GAS ONSHORE LLC 1999-2002→ 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 (3) Elevation 2,707 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 1,302 ft+1,405 ft
QUEEN 1,796 ft+911 ft
SAN ANDRES 2,218 ft+489 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 (3)

IntervalType
2,120–2,260 ftPerforated
2,120–2,466 ftPerforated
2,275–2,466 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"314 ft250 sx
7"2,600 ft525 sx

Permit History (1)

#16365 Drill Long String Casing

KLOH · 2,700 ft

1978-01-04

Spud 1978-04-26

Applications (1)

#16365 A SHENANDOAH OIL CORP.
received 1978-01-04

Records & Logs

4 completion filings on record.

W-2/G-1 1999-11-18
W-2/G-1 1999-11-18
W-2/G-1 1988-05-25
W-2/G-1 1978-05-25
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 GLASSCOCK County.

Well Details

Well Number
28
Max Depth
2,700 ft
Drill Type
Vertical
County
GLASSCOCK
District
8
Operator
CIMAREX ENERGY CO. OF COLORADO
Completed
1988-05-07

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