42-483-31521

Final Completion

ZYBACH 19

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

Permits

Max Depth

16,300 ft

First Permit

1997-12-05

Latest Activity

2006-02-21

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1998-03-11

Shut-In

—

Plugged

2023-08-03

EWA / Production operator mismatch

Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Production: BLACKBEARD OPERATING, LLC (reported 2021-07)

Resolved via: scheduling → DEVON ENERGY PRODUCTION CO L.P.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1998-03

Last Production

2023-08

Operator History

Chain of Custody

DEVON ENERGY CORPORATION(NEVADA) 1998-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2016→ TECOLOTE ENERGY OPERATING, LLC 2016-2019→ BLACKBEARD OPERATING, LLC 2020-2021

Lease Production

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

Formation Tops (6) Elevation 2,545 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
GRANITE WASH	11,702 ft	-9,157 ft
ATOKA WASH (Atoka)	13,895 ft	-11,350 ft
MORROW	15,171 ft	-12,626 ft
LWR. "A" CHERT	15,439 ft	-12,894 ft
PURYEAR	15,468 ft	-12,923 ft
PIERCE	16,066 ft	-13,521 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 (4)

Interval	Type
12,056–12,582 ft	Perforated
12,834–13,351 ft	Perforated
13,638–14,372 ft	Perforated
16,074–16,100 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	3,100 ft	1,403 sx
7"	15,270 ft	960 sx

Permit History (2)

#614540 Recompletion Final Completion

ZYBACH 19 · 16,300 ft

2006-02-21

#470491 Drill Final Completion

ZYBACH 19 · 16,200 ft

1997-12-05

Spud 1997-12-14

Applications (2)

#614540 A DEVON ENERGY PRODUCTION CO, L.P.

received 2006-02-20

#470491 A DEVON ENERGY CORPORATION(NEVADA)

received 1997-11-24

Records & Logs

5 completion filings on record · 2 with log images at RRC.

W-2/G-1 2006-08-31 log on file

W-2/G-1 2006-09-25

W-2/G-1 1998-05-06

W-2/G-1 1998-04-02 log on file

W-2/G-1 1998-05-15

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 WHEELER County.

Well Details

Well Number: 1
Max Depth: 16,300 ft
Drill Type: Vertical
County: WHEELER
District: 10
Operator: DEVON ENERGY PRODUCTION CO L.P.
Completed: 1998-03-11

Operator

Name: PENNZENERGY EXP. & PROD., L.L.C
Location: OKLAHOMA CI, TY
P-5 Status: Active (filed 2025-12-18)
Cum Oil (all leases): 365,943,944 bbl
Cum Gas (all leases): 9,274,880,220 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 9,264