← Wells

42-475-37409

Final Completion Horizontal

FUNKY BOSS B

WARD County · District 8 · COG OPERATING LLC · WOLFBONE (TREND AREA)

Permits

2

Max Depth

11,000 ft

First Permit

2018-03-02

Latest Activity

2021-07-06

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2018-11-06

Shut-In

—

Plugged

—

!

EWA / Production operator mismatch

Scheduling: COG OPERATING LLC ≠ Production: U.S. ENERGY DEVELOPMENT CORP (reported 2026-04)

Resolved via: production → U.S. ENERGY DEVELOPMENT CORP

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2018-11

Last Production

2026-07

Operator History

Chain of Custody

COG OPERATING LLC 2018-2025→ U.S. ENERGY DEVELOPMENT CORP 2025-2026

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (10) Elevation 2,585 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 881 ft+1,704 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)2,000 ft+585 ft
YATES 2,000 ft+585 ft
QUEEN 2,200 ft+385 ft
SEVEN RIVERS 2,375 ft+210 ft
GLORIETA 3,900 ft-1,315 ft
CLEARFORK (Clear Fork)4,500 ft-1,915 ft
HOLT 4,600 ft-2,015 ft
TUBB 4,600 ft-2,015 ft
DELAWARE 4,954 ft-2,369 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
✓ 42-475-37410 FUNKY BOSS C · COG OPERATING LLC
0.0 mi
Rustler 882'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Tubb 4,600'Holt 4,600'Delaware 4,955'
✓ 42-475-37368 WHATCHA WANT UNIT · COG OPERATING LLC
0.2 mi
Rustler 890'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Tubb 4,600'Holt 4,600'Delaware 4,963'
✓ 42-475-37366 WHATCHA WANT UNIT · COG OPERATING LLC
0.2 mi
Rustler 890'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Holt 4,600'Tubb 4,600'Delaware 4,963'
✓ 42-475-37367 WHATCHA WANT UNIT · COG OPERATING LLC
0.2 mi
Rustler 890'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Tubb 4,600'Holt 4,600'Delaware 4,963'
✓ 42-475-37369 WHATCHA WANT B · COG OPERATING LLC
0.2 mi
Rustler 890'Yates 2,000'San Andres 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Tubb 4,600'Holt 4,600'Delaware 4,963'
✓ 42-475-37365 WHATCHA WANT A · COG OPERATING LLC
0.4 mi
Rustler 892'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Holt 4,600'Bone Spring 9,171'Bone Spring 9,774'Bone Spring 10,587'
✓ 42-475-37359 WHATCHA WANT UNIT · COG OPERATING LLC
0.4 mi
Rustler 892'San Andres 2,000'Yates 2,000'Queen 2,200'Seven Rivers 2,375'Glorieta 3,900'Clear Fork 4,500'Holt 4,600'Tubb 4,600'Delaware 4,965'
✓ 42-475-37315 INTERGALACTIC UNIT · COG OPERATING LLC
0.5 mi
Rustler 893'Seven Rivers 2,375'Yates 2,800'Queen 3,200'Glorieta 4,000'San Andres 4,500'Holt 4,800'Delaware 4,966'Clear Fork 5,000'Tubb 5,300'

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
10,961–21,959 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,478 ft1,375 sx
9.625"10,155 ft1,110 sx
5.5"22,143 ft4,900 sx

Permit History (2)

#869860 Field Transfer Final Completion

FUNKY BOSS B · 11,000 ft

2021-07-06

#834477 Drill Final Completion

FUNKY BOSS B · 11,000 ft

2018-03-02

Spud 2018-03-10

Applications (2)

#869860 A COG OPERATING LLC
received 2021-05-13
#834477 A COG OPERATING LLC
received 2017-12-20

Records & Logs

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

W-2/G-1 2021-07-27
W-2/G-1 2019-04-16 log on file
W-2/G-1 2019-04-16 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.

Google Maps → Explorer Map →
Lat 31.471284
Lon -103.372186

Well Details

Well Number
8251H
Max Depth
11,000 ft
Drill Type
Horizontal
County
WARD
District
8
Operator
COG OPERATING LLC
Completed
2018-11-06

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