42-389-38134

PRODUCING Horizontal

LITTLE BIG CHIEF UNIT

REEVES County · District 8 · SCOUT ENERGY MANAGEMENT LLC · HOEFS T-K (WOLFCAMP)

Permits

1

Max Depth

10,700 ft

First Permit

2019-02-28

Latest Activity

2019-02-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-12-22

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: SCOUT ENERGY MANAGEMENT LLC ≠ Permit: COG OPERATING LLC

Resolved via: productionSCOUT ENERGY MANAGEMENT LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2015-08

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 (10) Elevation 2,923 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
FORD-DELAWARE (Delaware)2,500 ft+423 ft
CASTILLE (Castile)2,800 ft+123 ft
DELAWARE 5,247 ft-2,324 ft
BELL CANYON 5,287 ft-2,364 ft
CHERRY CANYON 6,070 ft-3,147 ft
DELAWARE CONSOLIDATED GAS (Delaware)6,500 ft-3,577 ft
BONE SPRINGS (Bone Spring)7,995 ft-5,072 ft
WOLFCAMP 10,177 ft-7,254 ft
PENNSYLVANIAN
PERMIAN (Permian (undifferentiated))

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
42-389-36539 WHITE CROW UNIT · COG OPERATING LLC
0.9 mi
Delaware 2,500'Castile 2,800'Delaware 5,269'Bell Canyon 5,329'Cherry Canyon 6,054'Delaware 6,500'Bone Spring 7,999'Wolfcamp 10,089'Permian (undifferentiated) Pennsylvanian
42-389-38191 WHITE CROW UNIT · COG OPERATING LLC
1.1 mi
Castile 2,800'Delaware 5,272'Bell Canyon 5,297'Cherry Canyon 6,063'Delaware 6,500'Bone Spring 7,975'Wolfcamp 10,085'Permian (undifferentiated) 11,300'Mississippian Pennsylvanian
42-389-37088 WHITE CROW UNIT · COG OPERATING LLC
1.1 mi
Delaware 5,284'Bell Canyon 5,339'Cherry Canyon 6,059'Bone Spring 8,004'Wolfcamp 10,098'Delaware Permian (undifferentiated) Castile Delaware Pennsylvanian
42-389-38192 WHITE CROW UNIT · COG OPERATING LLC
1.1 mi
Delaware 2,500'Castile 2,800'Delaware 5,272'Bell Canyon 5,297'Cherry Canyon 6,063'Delaware 6,500'Bone Spring 7,975'Wolfcamp 10,085'Permian (undifferentiated) 11,300'Pennsylvanian
42-389-36336 LEFT HAND BULL UNIT · COG OPERATING LLC
1.1 mi
Delaware 2,500'Castile 2,800'Delaware 5,214'Bell Canyon 5,288'Cherry Canyon 6,069'Delaware 6,500'Bone Spring 8,012'Wolfcamp 10,204'Permian (undifferentiated) Pennsylvanian
42-389-39715 POWDERHORN UNIT · COG OPERATING LLC
1.3 mi
Delaware 2,500'Delaware 2,500'Castile 2,800'Bell Canyon 5,297'Cherry Canyon 6,054'Delaware 6,500'Bone Spring 8,708'Wolfcamp 10,069'Pennsylvanian Permian (undifferentiated)
42-389-39714 POWDERHORN UNIT · COG OPERATING LLC
1.3 mi
Castile 2,500'Delaware 2,500'Delaware 5,221'Bell Canyon 5,289'Delaware 6,000'Cherry Canyon 6,056'Bone Spring 8,740'Wolfcamp 10,090'Permian (undifferentiated) Pennsylvanian
42-389-39709 POWDERHORN UNIT · COG OPERATING LLC
1.3 mi
Castile 2,500'Delaware 2,500'Delaware 5,216'Bell Canyon 5,284'Delaware 6,000'Cherry Canyon 6,057'Bone Spring 7,820'Wolfcamp 10,149'Permian (undifferentiated) Pennsylvanian

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
10,599–22,026 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,825 ft1,450 sx
9.625"9,796 ft1,105 sx
5.5"22,139 ft4,100 sx

Permit History (1)

Applications (1)

#850387 A COG OPERATING LLC
received 2019-02-25

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2020-02-20 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 31.052197
Lon -103.467090

Well Details

Well Number
4901H
Max Depth
10,700 ft
Drill Type
Horizontal
County
REEVES
District
8
Completed
2019-12-22

Operator

Location
DALLAS
P-5 Status
Active (filed 2025-09-22)
Cum Oil (all leases)
26,696,017 bbl
Cum Gas (all leases)
401,040,439 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
478