42-329-31677

Final Completion

STEPHENS KELLY

MIDLAND County · District 8 · MOBIL PRODUCING TX. & N.M. INC. · SPRABERRY(TREND AREA DEAN-WLFCP)

Permits

Max Depth

13,500 ft

First Permit

1986-01-14

Latest Activity

1990-01-08

Lifespan

4 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-01-27

Shut-In

—

Plugged

2018-05-30

EWA / Production operator mismatch

Scheduling: MOBIL PRODUCING TX. & N.M. INC. ≠ Production: PIONEER NATURAL RES. USA, INC. (reported 2026-04)

Resolved via: production → PIONEER NATURAL RES. USA, INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

PARKER & PARSLEY DEVELOPMENT CO. 1993-1995→ PARKER & PARSLEY DEVELOPMENT L.P 1995-1997→ PIONEER NATURAL RES. USA, INC. 1997-2026

Lease Production

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

Formation Tops (6) Elevation 2,657 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	2,295 ft	+362 ft
SPRABERRY	7,136 ft	-4,479 ft
STRAWN	10,280 ft	-7,623 ft
DEVONIAN	11,100 ft	-8,443 ft
SYLVAN	11,612 ft	-8,955 ft
ELLENBURGER	11,754 ft	-9,097 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 (5)

Interval	Type
7,149–7,318 ft	Perforated
7,950–8,021 ft	Perforated
8,467–8,977 ft	Perforated
9,063–9,442 ft	Perforated
11,471–11,501 ft	Perforated

Casing (5)

Size	Set Depth	Cement
13.375"	445 ft	550 sx
13.375"	445 ft	—
9.625"	5,200 ft	2,650 sx
9.625"	5,200 ft	—
9.625"	5,310 ft	—

Permit History (3)

#368244 Recompletion Final Completion

GERMANIA SPRABERRY UNIT · 8,400 ft

1990-01-08

#322255 Recompletion Final Completion

STEPHENS, KELLY · 13,000 ft

1986-11-21

#295269 Drill U

STEPHENS, KELLY · 13,500 ft

1986-01-14

Spud 1986-01-28

Applications (3)

#368244 A MOBIL PRODUCING TX. & N.M. INC.

received 1990-01-04

#322255 A MOBIL PRODUCING TX. & N.M. INC.

received 1986-10-23

#295269 A MOBIL PRODUCING TX. & N.M. INC.

received 1986-01-14

Records & Logs

10 completion filings on record · 3 with log images at RRC.

W-2/G-1 2016-07-26

W-2/G-1 1990-06-19

W-2/G-1 1990-04-11 log on file

W-2/G-1 1990-04-25

W-2/G-1 1987-05-04

+4 more filings

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 MIDLAND County.

Well Details

Well Number: 31
Max Depth: 13,500 ft
Drill Type: Vertical
County: MIDLAND
District: 8
Operator: MOBIL PRODUCING TX. & N.M. INC.
Completed: 1987-01-27

Operator

Name: SUPERIOR OIL CO, THE
Location: SPRING
P-5 Status: Active (filed 2025-06-04)
Cum Oil (all leases): 181,898,111 bbl
Cum Gas (all leases): 1,950,074,148 mcf
Activities: CSGD/G, GTHS/C, GTHS/G
Total Permits: 6,763