← Wells

42-389-32521

Final Completion Horizontal

BIG VALLEY 6-20

REEVES County · District 8 · DIAMONDBACK E&P LLC

Permits

3

Max Depth

11,300 ft

First Permit

2008-02-25

Latest Activity

2020-08-27

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2008-09

Last Production

2026-07

Operator History

Chain of Custody

CIMAREX ENERGY CO. 2008-2018→ CALLON PETROLEUM OPERATING CO 2018-2019→ COLGATE OPERATING, LLC 2019-2019→ DIAMONDBACK E&P LLC 2019-2026

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 (4) Elevation 2,530 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
UPPER 3RD BONE SPRING (Bone Spring)10,057 ft-7,527 ft
PHANTOM (WOLFCAMP)10,200 ft-7,670 ft
LOWER 3RD BONE SPRING (Bone Spring)10,559 ft-8,029 ft
WOLFCAMP A (Wolfcamp)10,728 ft-8,198 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
✓ 42-389-30392 WORSHAM '20' · DIAMONDBACK E&P LLC
0.0 mi
Delaware 4,940'Bone Spring 8,239'Wolfcamp 10,790'WOLCAMP 10,790'Atoka 15,370'Barnett 15,850'Mississippian 16,202'
✓ 42-389-38754 STATE NORMAN 45-46 A · DIAMONDBACK E&P LLC
0.5 mi
Castile 2,500'Delaware 4,900'Bell Canyon 4,930'Cherry Canyon 5,860'Bone Spring 8,040'Wolfcamp 10,695'Delaware —Permian (undifferentiated) —Pennsylvanian —Delaware —
✓ 42-389-38755 STATE NORMAN 45-46 B · DIAMONDBACK E&P LLC
0.5 mi
Castile 2,500'Delaware 4,905'Bell Canyon 4,935'Cherry Canyon 5,860'Bone Spring 8,050'Wolfcamp 10,718'Delaware —Pennsylvanian —Permian (undifferentiated) —Delaware —
✓ 42-389-38757 STATE NORMAN 45-46 C · DIAMONDBACK E&P LLC
0.5 mi
Castile 2,500'Delaware 4,900'Bell Canyon 4,930'Cherry Canyon 5,875'Bone Spring 8,020'Delaware —Delaware —Devonian —Wolfcamp —Pennsylvanian —Permian (undifferentiated) —
✓ 42-389-38758 STATE NORMAN 45-46 D · DIAMONDBACK E&P LLC
0.5 mi
Castile 2,500'Delaware 4,900'Bell Canyon 4,930'Cherry Canyon 5,870'Bone Spring 8,040'Permian (undifferentiated) —Pennsylvanian —Delaware —Delaware —Wolfcamp —
✓ 42-389-38033 CHOCTAW 1-21 B · DIAMONDBACK E&P LLC
0.6 mi
Bell Canyon 4,947'Cherry Canyon 5,910'Bone Spring 8,071'Wolfcamp 10,802'Delaware —Delaware —Pennsylvanian —Delaware —Castile —Permian (undifferentiated) —
✓ 42-389-38979 HAFLINGER 20 B · DIAMONDBACK E&P LLC
0.6 mi
Delaware 4,910'Cherry Canyon 5,861'Bone Spring 8,011'Wolfcamp 10,695'Bell Canyon —Pennsylvanian —Castile —PRECAMBRIAN (UNDIFFERENTIATED) —Delaware —Delaware —Permian (undifferentiated) —
✓ 42-389-38980 HAFLINGER 20 UA · DIAMONDBACK E&P LLC
0.6 mi
Cherry Canyon 5,856'Bone Spring 8,008'Wolfcamp 10,671'Bell Canyon —Pennsylvanian —Delaware —Permian (undifferentiated) —Delaware —Delaware —Castile —

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
11,406–14,480 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,120 ft1,085 sx
9.625"5,000 ft1,675 sx
7"11,050 ft1,200 sx

Permit History (3)

#861991 Field Transfer Final Completion

BIG VALLEY 6-20 · 10,662 ft

2020-08-27

Spud 2008-03-03

#655414 Drill Final Completion

BIG VALLEY 6-20 · 11,300 ft

2008-02-25

Spud 2008-03-03

#655414 Drill

ARMSTRONG '6-20' · 11,300 ft

2008-02-25

Spud 2008-03-03

Applications (3)

#861991 A DIAMONDBACK E&P LLC
received 2020-02-17
#655414 A CIMAREX ENERGY CO.
received 2008-07-18
#655414 A CIMAREX ENERGY CO.
received 2008-02-15

Records & Logs

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

W-2/G-1 2020-09-14 log on file
W-2/G-1 2008-11-14 log on file
W-2/G-1 2009-03-25
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 31.395927
Lon -103.281526

Well Details

Well Number
1H
Max Depth
11,300 ft
Drill Type
Horizontal
County
REEVES
District
8
Operator
DIAMONDBACK E&P LLC

Operator

Location
MIDLAND
P-5 Status
X (filed 2026-05-04)
Cum Oil (all leases)
986,290,193 bbl
Cum Gas (all leases)
41,995,553 mcf
Activities
GTHS/C, GTHS/O, OPRS/G, OPRS/O
Total Permits
4,970