42-461-31801

Final Completion

RATLIFF

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

Permits

Max Depth

8,500 ft

First Permit

1981-07-31

Latest Activity

2002-09-24

Lifespan

21 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2002-05-30

Shut-In

—

Plugged

2008-10-30

EWA / Production operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: MID-STATES OPERATING COMPANY (reported 2004-02)

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: MID-STATES OPERATING COMPANY

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

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2008-12

Operator History

Chain of Custody

HALLWOOD ENERGY CORPORATION 1993-1993→ BC OPERATING, INC. 1993-1998→ MID-STATES OPERATING COMPANY 2002-2004

Lease Production

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

Formation Tops (4) Elevation 2,697 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CLEARFORK (Clear Fork)	6,116 ft	-3,419 ft
UPPER SPRABERRY (Spraberry)	6,823 ft	-4,126 ft
JO MILL	7,676 ft	-4,979 ft
DEAN	8,219 ft	-5,522 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
6,390–6,534 ft	Perforated
6,823–8,386 ft	Perforated

Casing (5)

Size	Set Depth	Cement
8.625"	520 ft	450 sx
8.625"	520 ft	450 sx
2.375"	7,988 ft	—
4.5"	8,476 ft	700 sx
4.5"	8,476 ft	700 sx

Permit History (2)

#523859 Recompletion Final Completion

RATLIFF · 8,476 ft

2002-09-24

Spud 2002-05-21

#128495 Drill Final Completion

RATLIFF · 8,500 ft

1981-07-31

Applications (2)

#523859 A MID-STATES OPERATING COMPANY

received 2002-09-19

#128495 A SAXON OIL COMPANY

received 1981-07-31

Records & Logs

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

W-2/G-1 2002-09-09 log on file

W-2/G-1 2002-11-20

W-2/G-1 1981-10-20

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 UPTON County.

Well Details

Well Number: 1
Max Depth: 8,500 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2002-05-30

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