42-383-33242

Final Completion

ROCKER-B 12

REAGAN County · District 7 · DISCOVERY NATURAL RESOURCES LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

7,500 ft

First Permit

1984-10-10

Latest Activity

1984-10-10

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-12-05

Shut-In

Plugged

1998-08-19

!

EWA / Production operator mismatch

Scheduling: DISCOVERY NATURAL RESOURCES LLC ≠ Production: JM COX RESOURCES, L.P. (reported 2018-01)

!

EWA / Permit operator mismatch

Scheduling: DISCOVERY NATURAL RESOURCES LLC ≠ Permit: TIBURON PETROLEUM CORPORATION

Resolved via: schedulingDISCOVERY NATURAL RESOURCES LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

Lease Production

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

Formation Tops (4) Elevation 2,637 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
UPPER SPRABERRY (Spraberry)5,750 ft-3,113 ft
MIDDLE SPRABERRY (Spraberry)6,340 ft-3,703 ft
JO MILL 6,620 ft-3,983 ft
DEAN 7,160 ft-4,523 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 (3)

IntervalType
6,327–6,417 ftPerforated
6,582–6,799 ftPerforated
7,166–7,293 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"725 ft350 sx
4.5"7,480 ft1,525 sx

Permit History (1)

Applications (1)

#254716 A TIBURON PETROLEUM CORPORATION
received 1984-10-10

Records & Logs

2 completion filings on record.

W-2/G-1 1984-12-21
W-2/G-1 1985-01-10
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 REAGAN County.

Well Details

Well Number
1
Max Depth
7,500 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
1984-12-05

Operator

Location
DENVER
P-5 Status
Active (filed 2026-01-12)
Cum Oil (all leases)
51,732,063 bbl
Cum Gas (all leases)
23,685,198 mcf
Activities
G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
430