42-173-32014

Final Completion

BARFIELD 8 -B-

GLASSCOCK County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA CL. FK.)

Permits

Max Depth

10,500 ft

First Permit

1987-12-15

Latest Activity

2005-03-14

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2005-01-27

Shut-In

—

Plugged

2022-04-06

EWA / Production operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: PARSLEY ENERGY OPERATIONS, LLC (reported 2019-07)

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: NORTHSTAR OPERATING COMPANY

Resolved via: scheduling → PIONEER NATURAL RES. USA INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2022-04

Operator History

Chain of Custody

MWJ PRODUCING COMPANY 1993-1996→ LIMARK CORPORATION 1996-2003→ NORTHSTAR OPERATING COMPANY 2004-2016→ DE OPERATING LLC 2016-2017→ PARSLEY ENERGY OPERATIONS, LLC 2017-2019

Lease Production

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

Formation Tops (8) Elevation 2,709 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	1,954 ft	+755 ft
7 RIVERS (Seven Rivers)	1,998 ft	+711 ft
GRAYBURG	3,188 ft	-479 ft
CLEARFORK (Clear Fork)	6,020 ft	-3,311 ft
DEAN	7,875 ft	-5,166 ft
ATOKA	10,175 ft	-7,466 ft
DEVONIAN	10,686 ft	-7,977 ft
SEE ORIGINAL COMPLETION	—	—

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 (3)

Interval	Type
6,028–6,042 ft	Perforated
10,006–10,224 ft	Perforated
10,704–10,744 ft	Perforated

Casing (4)

Size	Set Depth	Cement
13.375"	350 ft	400 sx
9.625"	3,300 ft	350 sx
4.5"	8,092 ft	300 sx
7"	8,350 ft	600 sx

Permit History (2)

#558574 Recompletion Final Completion

BARFIELD 8 -B- · 6,370 ft

2005-03-14

Spud 2004-12-20

#340200 Drill Final Completion

BARFIELD 8 "B" · 10,500 ft

1987-12-15

Applications (2)

#558574 A NORTHSTAR OPERATING COMPANY

received 2005-03-04

#340200 A MWJ PRODUCING COMPANY

received 1987-12-14

Records & Logs

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

W-2/G-1 2005-03-24 log on file

W-2/G-1 1988-05-06 log on file

W-2/G-1 1988-05-12

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: 10,500 ft
Drill Type: Vertical
County: GLASSCOCK
District: 8
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2005-01-27

Operator

Name: PIONEER NATURAL RES. USA, INC
Location: Y SPRING
P-5 Status: Active (filed 2025-08-01)
Cum Oil (all leases): 1,771,882,421 bbl
Cum Gas (all leases): 1,763,727,021 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 15,401