42-211-34295

ISAACS E

HEMPHILL County · District 10 · UNIT PETROLEUM COMPANY · MENDOTA NW. (GRANITE WASH)

Permits

3

Max Depth

11,303 ft

First Permit

2008-06-18

Latest Activity

2024-08-23

Lifespan

16 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2008-09-16

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2008-09

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 (9) Elevation 2,549 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
BROWN DOLOMITE 3,890 ft-1,341 ft
DOUGLAS 6,828 ft-4,279 ft
KANSAS CITY 8,021 ft-5,472 ft
KC8,021 ft-5,472 ft
MARMATON 8,942 ft-6,393 ft
GRANITE WASH 9,413 ft-6,864 ft
NOVI10,767 ft-8,218 ft
13 FINGER10,862 ft-8,313 ft
MORROW 11,000 ft-8,451 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
42-211-34621 VOLLMERT C · UNIT PETROLEUM COMPANY
0.5 mi
Brown Dolomite 3,980'Douglas 6,916'Kansas City 8,112'Marmaton 9,050'Granite Wash 9,520'NOVI 10,810'13 FINGER 10,890'
42-211-34301 VOLLMERT 'C' · UNIT PETROLEUM COMPANY
0.9 mi
Brown Dolomite 3,968'Douglas 6,878'Kansas City 8,060'KC 8,060'Marmaton 8,985'Granite Wash 9,450'NOVI 10,712'13 FINGER 10,790'Morrow 10,910'
42-211-34298 VOLLMERT "C" · UNIT PETROLEUM COMPANY
1.2 mi
HEEBNER 6,917'Douglas 6,917'Douglas 6,917'Granite Wash 9,738'NOVI 11,010'
42-393-31941 VOLLMERT, J. C. · UNIT PETROLEUM COMPANY
1.3 mi
Brown Dolomite 3,932'Douglas 6,847'Douglas 7,257'Kansas City 8,004'Kansas City 8,358'Granite Wash 9,346'Granite Wash 10,654'13 FINGER 10,745'Morrow 10,823'13 FINGER 10,823'Morrow 11,249'
42-211-33714 ISAACS C · UNIT PETROLEUM COMPANY
1.3 mi
RED BEDS 3,915'BASE RED BEDS 3,915'Brown Dolomite 3,915'Brown Dolomite 4,390'HEEBNER 6,838'Douglas 6,838'BASE HEEBNER 6,838'Douglas 7,210'Kansas City 8,072'Kansas City 8,440'Marmaton 9,120'Marmaton 9,218' +6 more
42-393-32180 WATERFIELD 'A' · UNIT PETROLEUM COMPANY
3.1 mi
Brown Dolomite 4,119'Brown Dolomite 4,419'Douglas 6,930'Kansas City 8,145'Marmaton 9,120'Granite Wash 9,535'NOVI LIME 10,675'13 FINGER 10,755'
42-393-30128 SUSAN R. KAUFMAN · MMGL TXPH, LLC
4.1 mi
Brown Dolomite 4,256'Douglas 7,126'Tonkawa 7,543'Kansas City 8,182'CHEROKEE 10,200'Morrow 10,930'Morrow 11,388'Morrow 12,195'
42-211-31270 J.W. CAMPBELL UNIT · LONE TREE OIL & GAS LLC
4.3 mi
Marmaton 9,188'Granite Wash 9,849'ST. CLAIR (GRANITE WASH) 10,027'

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 (5)

IntervalType
7,214–7,228 ftPerforated
9,827–9,900 ftPerforated
10,066–10,099 ftPerforated
10,321–10,328 ftPerforated
10,614–10,698 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"2,834 ft1,075 sx
5.5"10,858 ft745 sx

Permit History (3)

Applications (3)

#902220 A UNIT PETROLEUM COMPANY
received 2025-04-01
#902220 A UNIT PETROLEUM COMPANY
received 2024-08-22
#663298 A UNIT PETROLEUM COMPANY
received 2008-05-29

Records & Logs

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

W-2/G-1 2025-02-20
W-2/G-1 2008-11-21 log on file
W-2/G-1 2009-01-24

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 35.853987
Lon -100.526354

Well Details

Well Number
1
Max Depth
11,303 ft
Drill Type
Vertical
County
HEMPHILL
District
10
Completed
2008-09-16

Operator

Location
TULSA
P-5 Status
Active (filed 2025-01-13)
Cum Oil (all leases)
8,610,362 bbl
Cum Gas (all leases)
788,031,686 mcf
Activities
CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
1,100