42-461-34458

PRODUCING Horizontal

JMC 12

UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · BENEDUM (DEVONIAN GAS)

Permits

1

Max Depth

11,500 ft

First Permit

2003-11-14

Latest Activity

2003-11-14

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2004-01-24

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: JM COX RESOURCES, L.P.

Resolved via: productionPIONEER NATURAL RES. USA, INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2004-01

Last Production

2026-07

Lease Production

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

Formation Tops (6) Elevation 2,695 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SPRABERRY 6,770 ft-4,075 ft
WOLFCAMP 8,930 ft-6,235 ft
PENN (Pennsylvanian)9,900 ft-7,205 ft
BARNETT 10,350 ft-7,655 ft
WOODFORD 10,700 ft-8,005 ft
DEVONIAN 10,850 ft-8,155 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)

IntervalType
11,398–12,635 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"510 ft500 sx
9.625"4,695 ft1,750 sx
7"10,880 ft800 sx

Permit History (1)

Applications (1)

#538524 A JM COX RESOURCES, L.P.
received 2003-11-12

Records & Logs

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

W-2/G-1 2004-02-11 log on file
W-2/G-1 2004-03-29
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
11,500 ft
Drill Type
Horizontal
County
UPTON
District
7
Completed
2004-01-24

Operator

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