42-383-33271

Final Completion

ROCKER B -M-

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

Permits

2

Max Depth

8,500 ft

First Permit

1984-10-18

Latest Activity

2021-12-30

Lifespan

37 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-02-10

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

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 (7) Elevation 2,462 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 550 ft+1,912 ft
UPPER SPRABERRY (Spraberry)5,260 ft-2,798 ft
LOWER SPRABERRY (Spraberry)5,870 ft-3,408 ft
DEAN 6,690 ft-4,228 ft
WOLFCAMP 6,798 ft-4,336 ft
MIDDLE WOLFCAMP (Wolfcamp)7,215 ft-4,753 ft
LOWER WOLFCAMP (Wolfcamp)7,460 ft-4,998 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-383-34157 ROCKER B "M" · GRAHAM ROYALTY, LTD.
0.5 mi
Spraberry 5,248'Spraberry 5,700'Spraberry 6,238'Dean 6,688'Wolfcamp 6,798'Wolfcamp 6,852'Wolfcamp 7,150'Wolfcamp 7,498'
42-383-40739 CHILI · DISCOVERY NATURAL RESOURCES LLC
1.8 mi
Queen 1,891'Grayburg 2,105'San Andres 2,658'Clear Fork 3,699'Spraberry 5,193'Dean 6,564'Wolfcamp 6,717'Strawn Ellenburger Fusselman
42-383-40741 CHILI A · DISCOVERY NATURAL RESOURCES LLC
1.8 mi
Queen 1,882'Grayburg 2,103'San Andres 2,618'Clear Fork 3,966'Spraberry 5,168'Dean 6,568'Wolfcamp 6,721'Fusselman Ellenburger Strawn
42-383-40740 CHILI · DISCOVERY NATURAL RESOURCES LLC
1.8 mi
Queen 1,891'Grayburg 2,096'San Andres 2,587'Clear Fork 3,939'Spraberry 5,168'Fusselman Strawn Ellenburger
42-383-41242 CHILI B · DISCOVERY NATURAL RESOURCES LLC
1.8 mi
Queen 1,902'Grayburg 2,103'San Andres 2,661'Clear Fork 3,939'Spraberry 5,161'Dean 6,562'Wolfcamp 6,715'Fusselman Strawn Ellenburger
42-383-41927 ROCKER, B. -N- · DISCOVERY NATURAL RESOURCES LLC
2.3 mi
Queen 1,981'Grayburg 2,172'San Andres 2,591'Clear Fork 4,175'Spraberry 5,257'Ellenburger Strawn Fusselman
42-383-41928 ROCKER, B. -N- · DISCOVERY NATURAL RESOURCES LLC
2.4 mi
Queen 1,973'Grayburg 2,164'San Andres 2,596'Clear Fork 4,156'Spraberry 5,247'Strawn Fusselman Ellenburger
42-383-41929 ROCKER, B. -N- · DISCOVERY NATURAL RESOURCES LLC
2.4 mi
Queen 1,981'Grayburg 2,172'San Andres 2,591'Clear Fork 4,175'Spraberry 5,257'Fusselman Strawn Ellenburger

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (4)

IntervalType
5,267–5,282 ftPerforated
5,872–6,254 ftPerforated
6,692–6,892 ftPerforated
7,190–7,458 ftPerforated

Casing (3)

SizeSet DepthCement
8.625"610 ft500 sx
4.5"6,900 ft1,000 sx
3.5"7,801 ft25 sx

Permit History (2)

Applications (2)

#875529 A DISCOVERY NATURAL RESOURCES LLC
received 2021-12-21
#255398 A COX, JOHN L.
received 1984-10-17

Records & Logs

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

W-2/G-1 2022-09-19 log on file
W-2/G-1 1985-02-21
W-2/G-1 1985-02-21
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.

Lat 31.308759
Lon -101.377712

Well Details

Well Number
M 37
Max Depth
8,500 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
1985-02-10

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