42-173-31381

Final Completion

COX X. B. C

GLASSCOCK County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA CL. FK.)

Permits

Max Depth

8,589 ft

First Permit

1983-01-26

Latest Activity

1987-02-03

Lifespan

4 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2011-03-10

Shut-In

—

Plugged

2015-03-03

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: STANDARD OIL PRODUCTION COMPANY

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

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-02

Operator History

Chain of Custody

PG&E RESOURCES COMPANY 1993-1994→ MIDPAR L.P. 1994-1995→ PARKER & PARSLEY DEVELOPMENT L.P 1995-1997→ PIONEER NATURAL RES. USA, INC. 1997-2023

Lease Production

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

Oil

production & DCA →

Formation Tops (2) Elevation 2,704 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CLEARFORK (Clear Fork)	6,263 ft	-3,559 ft
DEAN	8,247 ft	-5,543 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
6,263–6,442 ft	Perforated
8,247–8,463 ft	Perforated

Casing (4)

Size	Set Depth	Cement
12.75"	418 ft	600 sx
8.625"	3,674 ft	2,250 sx
2.875"	6,365 ft	—
4.5"	8,589 ft	1,000 sx

Permit History (2)

#326031 Recompletion Final Completion

COX, X. B. "C" · 8,589 ft

1987-02-03

#184193 Drill Final Completion

COX, X. B. C · 8,580 ft

1983-01-26

Spud 1983-02-04

Applications (2)

#326031 A STANDARD OIL PRODUCTION COMPANY

received 1987-02-02

#184193 A SOHIO PETROLEUM CO.

received 1983-01-26

Records & Logs

5 completion filings on record.

W-2/G-1 2011-05-24

W-2/G-1 1989-08-31

W-2/G-1 1987-03-18

W-2/G-1 1987-03-25

W-2/G-1 1983-03-22

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: 5
Max Depth: 8,589 ft
Drill Type: Vertical
County: GLASSCOCK
District: 7
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2011-03-10

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: 15,403