42-483-31562

Final Completion

EFFIE HAYES 18

WHEELER County · District 10 · DEVON ENERGY PRODUCTION CO L.P. · WEST PARK (UPPER MORROW)

RRC Lookup

Permits

Max Depth

15,700 ft

First Permit

1998-12-11

Latest Activity

2004-12-07

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1999-04-08

Shut-In

—

Plugged

—

EWA / Production operator mismatch

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

Resolved via: production → MMGL TXPH, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1999-04

Last Production

2026-03

Operator History

Chain of Custody

DEVON ENERGY CORPORATION(NEVADA) 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2016→ TECOLOTE ENERGY OPERATING, LLC 2016-2019→ BLACKBEARD OPERATING, LLC 2020-2023→ MMGL TXPH, LLC 2023-2025

Lease Production

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

Permit History (2)

#554502 Recompletion Final Completion

EFFIE HAYES 18 · 14,600 ft

2004-12-07

#481249 Drill Final Completion

HAYES, EFFIE 18 · 15,700 ft

1998-12-11

Spud 1999-01-22

Permit Applications (2)

#554502 A DEVON ENERGY PRODUCTION CO, L.P.

received 2004-12-07

#481249 A DEVON ENERGY CORPORATION(NEVADA)

received 1998-12-03

Well Details

Well Number: 1
Max Depth: 15,700 ft
Drill Type: Vertical
County: WHEELER
District: 10
Operator: DEVON ENERGY PRODUCTION CO L.P.
Completed: 1999-04-08

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: 9,224

External Links

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