42-495-30182

Final Completion

KEYSTONE CATTLE CO.

WINKLER County · District 8 · DEVON ENERGY PRODUCTION CO L.P. · FLYING -W- (ELLEN)

RRC Lookup

Permits

Max Depth

11,770 ft

First Permit

1980-11-10

Latest Activity

1980-11-10

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Production: HIGHMARK ENERGY OPERATING, LLC (reported 2025-12)

EWA / Permit operator mismatch

Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Permit: GULF OIL CORP.

Resolved via: production → HIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-03

Operator History

Chain of Custody

PENNZOIL PETROLEUM COMPANY 1993-1995→ PENNZOIL EXPLORATION & PROD. CO. 1995-1999→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2008→ LEGACY RESERVES OPERATING LP 2008-2023→ HIGHMARK ENERGY OPERATING, LLC 2023-2025

Lease Production

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

Oil

production & DCA →

Permit History (1)

#99284 Recompletion Final Completion

KEYSTONE CATTLE CO. · 11,770 ft

1980-11-10

Permit Applications (1)

#99284 A GULF OIL CORP.

received 1980-11-10

Well Details

Well Number: 315
Max Depth: 11,770 ft
Drill Type: Vertical
County: WINKLER
District: 8
Operator: DEVON ENERGY PRODUCTION CO L.P.

Operator

Name: PENNZENERGY EXP. & PROD., L.L.C
Location: OKLAHOMA CI, TY
P-5 Status: Y (filed 2025-11-04)
Cum Oil (all leases): 360,504,673 bbl
Cum Gas (all leases): 9,266,199,431 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 9,223

External Links

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