42-461-41079

PRODUCING Horizontal

AMACKER 66A

UPTON County · District 7 · COG OPERATING LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

11,000 ft

First Permit

2019-01-24

Latest Activity

2019-01-24

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2020-01-16

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-06

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 (9) Elevation 1 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,386 ft-2,385 ft
GRAYBURG 2,500 ft-2,499 ft
SAN ANDRES - SALTWATER FLOW (San Andres)4,580 ft-4,579 ft
SPRABERRY 7,187 ft-7,186 ft
WOLFCAMP 8,479 ft-8,478 ft
DEVONIAN
ELLENBURGER
FUSSELMAN
STRAWN

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
42-461-41080 AMACKER 66B · COG OPERATING LLC
0.0 mi
Yates 2,386'Grayburg 2,500'San Andres 4,574'Spraberry 7,184'Wolfcamp 8,471'Devonian Ellenburger Fusselman Strawn
42-461-41094 AMACKER 67D · COG OPERATING LLC
0.2 mi
Yates 2,425'Grayburg 3,000'San Andres 4,563'Spraberry 7,210'Wolfcamp 8,493'Strawn Devonian Fusselman Ellenburger
42-461-41093 AMACKER 67C · COG OPERATING LLC
0.3 mi
Yates 2,425'Grayburg 3,000'San Andres 4,551'Spraberry 7,207'Wolfcamp 8,486'Fusselman Ellenburger Devonian Strawn
42-461-41062 AMACKER 66E · COG OPERATING LLC
0.3 mi
Yates 2,405'Grayburg 3,000'San Andres 4,597'Spraberry 7,204'Wolfcamp 8,505'Strawn Fusselman Devonian Ellenburger
42-461-41074 AMACKER 66F · COG OPERATING LLC
0.3 mi
Yates 2,405'Grayburg 3,000'San Andres 4,597'Spraberry 7,204'Wolfcamp 8,505'Devonian Ellenburger Fusselman Strawn
42-461-41474 AMACKER 66G · COG OPERATING LLC
0.5 mi
Yates 2,410'Grayburg 4,115'San Andres 4,615'Spraberry 7,086'Wolfcamp 8,511'Strawn Devonian Fusselman Ellenburger
42-461-41472 AMACKER 66H · COG OPERATING LLC
0.5 mi
Yates 2,410'Grayburg 4,115'San Andres 4,615'Spraberry 7,086'Wolfcamp 8,511'Fusselman Ellenburger Devonian Strawn
42-461-41473 AMACKER 66J · COG OPERATING LLC
0.6 mi
Yates 2,410'Grayburg 4,115'San Andres 4,615'Spraberry 7,086'Wolfcamp 8,511'Strawn Fusselman Devonian 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 (1)

IntervalType
9,198–24,719 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,460 ft1,085 sx
9.625"8,048 ft685 sx
5.5"24,795 ft3,580 sx

Permit History (1)

Applications (1)

#849014 A COG OPERATING LLC
received 2019-01-22

Records & Logs

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

W-2/G-1 2020-03-10 log on file
W-2/G-1 2020-01-21 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.

Lat 31.359879
Lon -102.031285

Well Details

Well Number
6608BH
Max Depth
11,000 ft
Drill Type
Horizontal
County
UPTON
District
7
Completed
2020-01-16

Operator

Location
MIDLAND
P-5 Status
X (filed 2026-06-02)
Cum Oil (all leases)
645,285,792 bbl
Cum Gas (all leases)
305,183,488 mcf
Activities
OPRS/G, OPRS/O
Total Permits
4,538