42-173-10289

Final Completion

CALVERLEY J. B. ESTATE

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

Permits

Max Depth

8,325 ft

First Permit

1978-10-18

Latest Activity

1981-07-01

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2018-05-20

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

GLASSCOCK County disposal market →

W-14 Disposal Active UIC #000085955 permitted 2018-09-24

Permitted Volume

10,000 bbl/d

Max Pressure

1,530 psi

Injection Interval

3,060–4,218 ft

Injected (12mo)

374,484 bbl

Monthly injected volume (bbl, from H-10 filings through 2026-01-01)

Lease Production

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

Formation Tops (3) Elevation 2,708 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SPRABERRY	6,563 ft	-3,855 ft
WOLFCAMP	7,800 ft	-5,092 ft
NA	—	—

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
3,315–3,982 ft	Perforated
3,878–3,982 ft	Perforated
6,569–6,717 ft	Perforated
7,876–7,920 ft	Perforated

Casing (3)

Size	Set Depth	Cement
9.625"	448 ft	300 sx
2.375"	7,820 ft	—
5.5"	8,235 ft	700 sx

Permit History (2)

#123752 Recompletion Final Completion

CALVERLEY, J.B. ESTATE · 8,325 ft

1981-07-01

#34938 Recompletion Final Completion

CALVERLEY, J. B. ESTATE · 8,235 ft

1978-10-18

Spud 1979-02-13

Applications (2)

#123752 A MEWBOURNE OIL CO.

received 1981-07-01

#34938 A MEWBOURNE OIL CO.

received 1978-10-18

Records & Logs

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

W-2/G-1 2018-06-21

W-2/G-1 1998-06-26 log on file

W-2/G-1 1981-09-30

W-2/G-1 1979-12-28

W-2/G-1 1966-08-11

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: 1
Max Depth: 8,325 ft
Drill Type: Vertical
County: GLASSCOCK
District: 8
Operator: MEWBOURNE OIL COMPANY
Completed: 2018-05-20

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: 2,022