← Wells

42-003-35721

Final Completion

NOLLEY WOLFCAMP UNIT

ANDREWS County · District 8 · CRESCENT ENERGY OPERATING LLC · NOLLEY (WOLFCAMP)

Permits

3

Max Depth

9,700 ft

First Permit

1987-01-28

Latest Activity

2017-11-13

Lifespan

31 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-04-03

Shut-In

—

Plugged

—

!

EWA / Permit operator mismatch

Scheduling: CRESCENT ENERGY OPERATING LLC ≠ Permit: VANGUARD OPERATING, LLC

Resolved via: production → CRESCENT ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

ANDREWS County disposal market →
H-1 Injection Inactive UIC #000063522 permitted 1987-04-30

Permitted Volume

2,500 bbl/d

Max Pressure

3,000 psi

Injection Interval

8,960–9,500 ft

Injected (12mo)

—

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Operator History

Chain of Custody

MOBIL PRODUCING TX. & N.M. INC. 1993-1994→ CODA ENERGY, INC. 1995-1998→ BELCO ENERGY CORP. 1998-2002→ WESTPORT OIL AND GAS COMPANY, LP 2002-2005→ ENCORE OPERATING, L.P. 2005-2007→ ENCORE ENERGY PARTNERS OPER LLC 2008-2012→ VANGUARD PERMIAN, LLC 2012-2015→ VANGUARD OPERATING, LLC 2015-2019→ GRIZZLY OP OF DELAWARE, LLC 2019-2021→ CONTANGO RESOURCES, INC. 2021-2021→ CONTANGO RESOURCES, LLC 2022-2025→ CRESCENT ENERGY OPERATING, LLC 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 (14) Elevation 3,171 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,500 ft+671 ft
SEVEN RIVERS 3,000 ft+171 ft
YATES 3,414 ft-243 ft
QUEEN 4,700 ft-1,529 ft
GRAYBURG 4,900 ft-1,729 ft
SAN ANDRES 5,208 ft-2,037 ft
SAN ANDRES - CO2 FLOOD, HIGH FLO (San Andres)5,208 ft-2,037 ft
HOLT 5,400 ft-2,229 ft
GLORIETA 5,900 ft-2,729 ft
TUBB 6,200 ft-3,029 ft
CLEARFORK (Clear Fork)7,500 ft-4,329 ft
PERMIAN DETRITAL (Permian (undifferentiated))7,800 ft-4,629 ft
SPRABERRY 8,258 ft-5,087 ft
WOLFCAMP 9,120 ft-5,949 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
✓ 42-003-48487 TOM PEAY · CML EXPLORATION, LLC
0.7 mi
Yates 3,460'Queen 4,650'San Andres 5,165'Glorieta —Holt —Tubb —Permian (undifferentiated) —Clear Fork —Grayburg —Seven Rivers —
✓ 42-165-38596 NORMAN MOGC · MAVERICK OPERATING, LLC
2.3 mi
Yates 2,800'Seven Rivers 3,400'Queen 4,000'San Andres 4,200'Glorieta 5,500'San Angelo 6,400'Clear Fork 6,828'Wichita-Albany 8,062'Spraberry 8,600'Leonard 8,700'
✓ 42-003-47173 MEANS SAN ANDRES UNIT · XTO ENERGY INC.
3.7 mi
Yates 2,864'Seven Rivers 3,024'Queen 3,667'Grayburg 4,010'San Andres 4,341'Glorieta —Holt —Permian (undifferentiated) —Clear Fork —Tubb —
✓ 42-003-47991 MEANS SAN ANDRES UNIT · XTO ENERGY INC.
3.8 mi
Yates 2,941'Seven Rivers 3,107'Queen 3,740'Grayburg 4,059'San Andres 4,368'Tubb —Holt —Glorieta —Permian (undifferentiated) —Clear Fork —
✓ 42-003-47990 MEANS SAN ANDRES UNIT · XTO ENERGY INC.
3.8 mi
Yates 2,860'Seven Rivers 3,027'Queen 3,660'Grayburg 4,003'San Andres 4,325'Glorieta —Holt —Permian (undifferentiated) —Clear Fork —Tubb —
✓ 42-003-48761 ZENA · RING ENERGY, INC.
3.8 mi
Yates 2,835'Seven Rivers 3,027'PRECAMBRIAN (UNDIFFERENTIATED) —Fusselman —Silurian (undifferentiated) —McKee —Pennsylvanian —Ellenburger —Strawn —Devonian —
✓ 42-003-47474 MEANS SAN ANDRES UNIT · XTO ENERGY INC.
3.8 mi
Yates 2,835'Seven Rivers 3,001'Queen 3,647'Grayburg 3,993'San Andres 4,324'Glorieta —Holt —Tubb —Permian (undifferentiated) —Clear Fork —
✓ 42-165-39019 RED WOLF · BIG MOUNTAIN OPERATING LLC
3.9 mi
Glorieta 6,218'Clear Fork 6,794'Spraberry 7,684'San Angelo —San Andres —Wichita-Albany —Yates —Queen —Seven Rivers —Leonard —

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 (2)

IntervalType
7,666–7,724 ftPerforated
9,124–9,506 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"450 ft450 sx
13.375"450 ft450 sx
8.625"5,700 ft3,550 sx
5.5"9,550 ft1,750 sx

Permit History (3)

#825171 Recompletion Final Completion

H. R. COPE · 9,700 ft

2017-11-13

Spud 2017-12-13

#325923 Drill Final Completion

NOLLEY WOLFCAMP UNIT · 9,700 ft

1987-01-28

#325923 Drill

NOLLEY WOLFCAMP UNIT · 9,700 ft

1987-01-28

Applications (3)

#825171 A VANGUARD OPERATING, LLC
received 2017-04-05
#325923 A MOBIL PRODUCING TX. & N.M. INC.
received 1987-04-01
#325923 A MOBIL PRODUCING TX. & N.M. INC.
received 1987-01-28

Records & Logs

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

W-2/G-1 2018-03-01
W-2/G-1 1987-05-01 log on file
W-2/G-1 1987-05-12
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 32.521624
Lon -102.532682

Well Details

Well Number
1R
Max Depth
9,700 ft
Drill Type
Vertical
County
ANDREWS
District
8
Operator
CRESCENT ENERGY OPERATING LLC
Completed
1987-04-03

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-08-28)
Cum Oil (all leases)
10,867,426 bbl
Cum Gas (all leases)
2,390,025 mcf
Activities
OPRS/G, OPRS/O
Total Permits
20