42-435-37219

MAYFIELD 41

SUTTON County · District 7 · ENERVEST OPERATING, L.L.C.

Permits

4

Max Depth

8,850 ft

First Permit

2004-12-15

Latest Activity

2017-06-16

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2005-03

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 (5) Elevation 2,288 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
BASE CRETACEOUS (Base Cretaceous (marker))892 ft+1,396 ft
WOLFCAMP 3,233 ft-945 ft
WOLFCAMP 3,450 ft-1,162 ft
CANYON 6,264 ft-3,976 ft
STRAWN 7,886 ft-5,598 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
42-435-37481 HILL-FAWCETT, RANDEE 'B' · UPP OPERATING, LLC
1.9 mi
Base Cretaceous (marker) 833'CRETACEOUS 833'Leonard 1,522'Wolfcamp 3,308'Canyon 6,142'Pennsylvanian Strawn
42-435-35259 BLOODWORTH 140 · HIGHMOUNT EXPL & PROD TEXAS LLC
2.6 mi
Base Cretaceous (marker) 802'Wolfcamp 3,416'Canyon 6,047'Strawn 7,715'
42-435-35159 MAYER 47 · UPP OPERATING, LLC
3.0 mi
Base Cretaceous (marker) 890'Wolfcamp 3,590'Canyon 6,291'Strawn 7,720'
42-435-34520 HILL MAYER MINNIES H. A · UPP OPERATING, LLC
3.3 mi
Base Cretaceous (marker) 757'SAWYER (LEONARD) 1,510'Wolfcamp 3,523'Canyon 6,290'Strawn 7,734'Pennsylvanian
42-435-37573 SAWYER-JONES · UPP OPERATING, LLC
5.8 mi
Base Cretaceous (marker) 730'Wolfcamp 2,756'Canyon 5,635'
42-435-34375 MORRIS BROTHERS E · ENERVEST OPERATING, L.L.C.
7.4 mi
Base Cretaceous (marker) 816'Wolfcamp 2,994'Canyon 6,901'Strawn 8,596'
42-435-39436 FENNEC · UPP OPERATING, LLC
7.7 mi
Leonard 1,438'Wolfcamp 2,843'Canyon 6,101'Strawn 8,644'Pennsylvanian
42-435-35687 KIRBY 1 · UPP OPERATING, LLC
7.9 mi
CRETACEOUS 865'Base Cretaceous (marker) 865'Base Cretaceous (marker) 865'Leonard 2,064'SAWYER (LEONARD) 2,064'Wolfcamp 3,750'Canyon 6,220'

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 (3)

IntervalType
3,233–5,563 ftPerforated
6,270–7,379 ftPerforated
7,970–8,072 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"259 ft450 sx
8.625"2,422 ft950 sx
4.5"8,310 ft1,200 sx

Permit History (4)

Applications (4)

#827475 A ENERVEST OPERATING, L.L.C.
received 2017-06-05
#707192 A ENERVEST OPERATING, L.L.C.
received 2016-08-11
#707192 A HIGHMOUNT EXPL & PROD TEXAS LLC
received 2010-12-16
#554883 A DOMINION OKLAHOMA TEXAS E&P, INC
received 2004-12-15

Records & Logs

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

W-2/G-1 2015-12-03
W-2/G-1 2005-04-13 log on file
W-2/G-1 2005-10-26
W-2/G-1 2005-10-25

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 30.546931
Lon -100.804344

Well Details

Well Number
15
Max Depth
8,850 ft
Drill Type
Vertical
County
SUTTON
District
7

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-01-13)
Cum Oil (all leases)
39,678,049 bbl
Cum Gas (all leases)
1,492,558,001 mcf
Activities
CSGD/G, G/PUR, GTHS/G, OPRS/G
Total Permits
1,249