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42-013-36272

Horizontal

MAUCH-WRIGHT HENKE SA1

ATASCOSA County · District 1 · MARATHON OIL EF LLC

Permits

1

Max Depth

17,500 ft

First Permit

2026-05-04

Latest Activity

2026-05-04

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Formation Tops

No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. The nearest completed wells below show what to expect at this location.

Check this well's filings at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported — this well has no filings of its own yet.

Cross-section
✓ 42-013-35976 MAUCH TOM KRUEGER SA2 · MARATHON OIL EF LLC
0.6 mi
Queen City 2,617'Reklaw 3,171'Carrizo 3,985'Wilcox 4,061'Anacacho 10,409'Austin Chalk 10,569'Navarro —Escondido —Bartosh —Olmos —
✓ 42-013-35977 MAUCH TOM KRUEGER-ETHRIDGE SA · MARATHON OIL EF LLC
0.6 mi
Queen City 1,791'Reklaw 3,171'Carrizo 3,895'Wilcox 4,061'Anacacho 10,408'Austin Chalk 10,571'Bartosh —Escondido —Navarro —Olmos —
✓ 42-013-35815 FOUSHEE-WRIGHT KEATHLEY SA4 · MARATHON OIL EF LLC
0.6 mi
Queen City 2,769'Reklaw 3,344'Bartosh 3,761'Carrizo 4,119'Wilcox 5,376'Navarro 8,601'Anacacho 10,451'Austin Chalk 10,615'Eagle Ford 10,790'Edwards —Buda —Olmos — +2 more
✓ 42-013-35978 RETZLOFF MAY-MAUCH KRUEGER SA · MARATHON OIL EF LLC
0.6 mi
Queen City 2,617'Reklaw 3,171'Carrizo 3,985'Wilcox 4,061'Anacacho 10,409'Austin Chalk 10,574'Bartosh —Escondido —Navarro —Olmos —
✓ 42-013-35816 FOUSHEE-WRIGHT KEATHLEY SA3 · MARATHON OIL EF LLC
0.6 mi
Reklaw 3,344'Bartosh 3,761'Carrizo 4,119'Wilcox 5,376'Navarro 8,601'Olmos 9,271'Anacacho 10,462'Austin Chalk 10,618'Eagle Ford 10,789'Buda —Queen City —Escondido — +2 more
✓ 42-013-35814 FOUSHEE-WRIGHT KEATHLEY SA2 · MARATHON OIL EF LLC
0.6 mi
Queen City 2,769'Reklaw 3,344'Bartosh 3,761'Carrizo 4,119'Wilcox 5,376'Navarro 8,601'Anacacho 10,451'Austin Chalk 10,615'Olmos —Escondido —
✓ 42-013-35813 FOUSHEE-WRIGHT KEATHLEY SA1 · MARATHON OIL EF LLC
0.6 mi
Reklaw 3,344'Bartosh 3,761'Carrizo 4,119'Wilcox 5,376'Navarro 8,601'Olmos 9,271'Anacacho 10,462'Austin Chalk 10,618'Queen City —Escondido —
✓ 42-013-35828 TOM FAMILY-RETZLOFF SA1 · MARATHON OIL EF LLC
1.0 mi
Queen City 2,714'Reklaw 3,294'Carrizo 3,969'Wilcox 4,044'Olmos 9,054'Anacacho 10,450'Austin Chalk 10,610'Navarro —Escondido —Bartosh —

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).

Permit History (1)

#915290 Drill

MAUCH-WRIGHT HENKE SA1 · 17,500 ft

2026-05-04

Applications (1)

#915290 A MARATHON OIL EF LLC
received 2026-04-30

Records & Logs

No W-2/G-1 filings on record in the RRC wellbore file for this well.

Completion packets + logs ↗ Wellbore filings ↗

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.

Google Maps → Explorer Map →
Lat 28.762527
Lon -98.170520

Well Details

Well Number
1H
Max Depth
17,500 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Operator
MARATHON OIL EF LLC

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-09-26)
Cum Oil (all leases)
409,189,156 bbl
Cum Gas (all leases)
1,029,735,602 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,166