42-173-31772

Final Completion

CALVERLEY J. B. ESTATE

GLASSCOCK County · District 8 · MEWBOURNE OIL COMPANY · GARDEN CITY W. (WOLFCAMP 7880)

Permits

Max Depth

8,400 ft

First Permit

1984-12-31

Latest Activity

2010-02-10

Lifespan

25 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-03-30

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (5) Elevation 2,706 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	3,164 ft	-458 ft
UPPER SPRABERRY (Spraberry)	6,056 ft	-3,350 ft
UPPER SPRABERRY (Spraberry)	6,064 ft	-3,358 ft
LOWER SPRABERRY (Spraberry)	6,574 ft	-3,868 ft
WOLFCAMP DETRITAL (Wolfcamp)	7,830 ft	-5,124 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 (2)

Interval	Type
6,081–7,658 ft	Perforated
7,849–7,918 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	441 ft	475 sx
8.625"	4,367 ft	1,500 sx
5.5"	8,030 ft	1,500 sx

Permit History (2)

#691054 Recompletion Final Completion

J. B. CALVERLEY ESTATE · 8,400 ft

2010-02-10

Spud 2009-12-14

#263130 Drill Final Completion

CALVERLEY ESTATE · 8,400 ft

1984-12-31

Spud 1985-03-02

Applications (2)

#691054 A MEWBOURNE OIL COMPANY

received 2010-02-09

#263130 A MEWBOURNE OIL CO.

received 1984-12-28

Records & Logs

4 completion filings on record · 1 with log images at RRC.

W-2/G-1 2010-03-04 log on file

W-2/G-1 2010-07-14

W-2/G-1 1985-04-10

W-2/G-1 1985-04-18

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: 4
Max Depth: 8,400 ft
Drill Type: Vertical
County: GLASSCOCK
District: 8
Operator: MEWBOURNE OIL COMPANY
Completed: 1985-03-30

Operator

Name: MEWBOURNE OIL CO
Location: TYLER
P-5 Status: Active (filed 2026-05-21)
Cum Oil (all leases): 48,864,987 bbl
Cum Gas (all leases): 768,985,959 mcf
Activities: CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits: 2,025