42-461-38866

Final Completion

MARY 18

UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

Max Depth

13,000 ft

First Permit

2013-06-24

Latest Activity

2014-03-24

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2013-11-08

Shut-In

—

Plugged

2023-04-11

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: PARSLEY ENERGY OPERATIONS, LLC

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

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2013-08

Last Production

2026-07

Operator History

Chain of Custody

PARSLEY ENERGY OPERATIONS, LLC 2013-2021→ PIONEER NATURAL RES. USA, INC. 2021-2026

Lease Production

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

Formation Tops (3) Elevation 2,804 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
WOLFCAMP	8,758 ft	-5,954 ft
STRAWN	10,760 ft	-7,956 ft
PENN (Pennsylvanian)	11,018 ft	-8,214 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 (1)

Interval	Type
8,758–11,744 ft	Perforated

Casing (3)

Size	Set Depth	Cement
12.75"	378 ft	440 sx
8.625"	4,986 ft	609 sx
5.5"	11,859 ft	1,430 sx

Permit History (2)

#780264 Recompletion Final Completion

MARY 18 · 12,500 ft

2014-03-24

Spud 2013-09-19

#764626 Drill Y

MARY 18 · 13,000 ft

2013-06-24

Spud 2013-09-17

Applications (2)

#780264 A PARSLEY ENERGY OPERATIONS, LLC

received 2014-02-19

#764626 A PARSLEY ENERGY OPERATIONS, LLC

received 2013-06-13

Records & Logs

2 completion filings on record · 2 with log images at RRC.

W-2/G-1 2014-04-01 log on file

W-2/G-1 2014-02-25 log on file

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: 13,000 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2013-11-08

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: 15,491