42-227-40495

PRODUCING Horizontal

DUNKIN UNIT A1

HOWARD County · District 8 · APACHE CORPORATION · SPRABERRY (TREND AREA)

Permits

2

Max Depth

8,950 ft

First Permit

2019-12-11

Latest Activity

2019-12-11

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2020-06-02

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: APACHE CORPORATION ≠ Permit: CALLON PETROLEUM OPERATING CO

Resolved via: productionAPACHE CORPORATION

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-06

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 (10)

CSV
FormationTop Depth (MD)
YATES 2,075 ft
SEVEN RIVERS 2,200 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,435 ft
GLORIETA 4,380 ft
CLEARFORK - SEVERE WATER FLOWS (Clear Fork)5,825 ft
SPRABERRY 6,660 ft
DEAN 7,993 ft
WOLFCAMP 8,188 ft
COLEMAN JUNCTION
LEONARD

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-227-40496 DUNKIN UNIT A2 · CALLON PETROLEUM OPERATING CO
0.0 mi
Seven Rivers 1,075'Santa Rosa 1,075'Yates 2,075'Seven Rivers 2,200'Queen 2,830'San Andres 3,435'Glorieta 4,380'Clear Fork 5,825'Spraberry 6,660'Leonard 7,645'Wolfcamp Dean +1 more
42-227-40497 DUNKIN UNIT A2 · CALLON PETROLEUM OPERATING CO
0.0 mi
Santa Rosa 1,075'Yates 2,075'Seven Rivers 2,200'Queen 2,830'San Andres 3,435'Glorieta 4,380'Clear Fork 5,825'Spraberry 6,660'Leonard 7,645'Dean 7,999'Wolfcamp 8,172'Coleman Junction
42-227-42194 POSH A1 · CALLON PETROLEUM OPERATING CO
0.1 mi
Clear Fork 4,863'Spraberry 6,637'Dean 7,988'Wolfcamp 8,164'Yates Seven Rivers San Andres Santa Rosa Rustler Glorieta
42-227-42193 BLAGRAVE A1 · CALLON PETROLEUM OPERATING CO
0.1 mi
Santa Rosa 1,075'Rustler 1,523'Yates 2,058'Seven Rivers 2,172'San Andres 3,652'Glorieta 4,574'Clear Fork 4,993'Spraberry 6,511'Leonard 7,614'Dean 7,991'
42-227-42195 POSH A2 · CALLON PETROLEUM OPERATING CO
0.1 mi
Clear Fork 4,865'Clear Fork 5,740'Spraberry 6,637'Glorieta Santa Rosa Rustler San Andres Yates Leonard Seven Rivers
42-227-41701 DUNKIN UNIT · CALLON PETROLEUM OPERATING CO
0.2 mi
Santa Rosa 1,075'Rustler 1,495'Yates 2,090'Seven Rivers 2,245'San Andres 3,200'Glorieta 4,575'Clear Fork 5,835'Spraberry 6,680'Leonard 7,655'Dean 8,014'
42-227-41703 DUNKIN UNIT · CALLON PETROLEUM OPERATING CO
0.2 mi
Santa Rosa 1,075'Rustler 1,495'Yates 2,090'Seven Rivers 2,245'San Andres 3,200'Glorieta 4,575'Clear Fork 5,835'Spraberry 6,680'Leonard 7,652'Dean 8,011'
42-227-41702 DUNKIN UNIT · CALLON PETROLEUM OPERATING CO
0.2 mi
Santa Rosa 1,075'Rustler 1,495'Yates 2,090'Seven Rivers 2,245'San Andres 3,200'Glorieta 4,575'Clear Fork 5,835'Spraberry 6,680'Leonard 7,652'Dean

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
8,716–18,278 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"1,265 ft912 sx
9.625"7,510 ft829 sx
7"13,970 ft3,220 sx
5.5"18,444 ft3,220 sx

Permit History (2)

Applications (2)

#859643 A CALLON PETROLEUM OPERATING CO
received 2019-12-12
#859643 A CALLON PETROLEUM OPERATING CO
received 2019-12-04

Records & Logs

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

W-2/G-1 2021-01-04 log on file

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Lat 32.518631
Lon -101.652449

Well Details

Well Number
8AH
Max Depth
8,950 ft
Drill Type
Horizontal
County
HOWARD
District
8
Completed
2020-06-02

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-12-03)
Cum Oil (all leases)
615,928,793 bbl
Cum Gas (all leases)
2,702,742,169 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
9,704