42-013-35834

Horizontal

R. MAY B

ATASCOSA County · District 1 · MARATHON OIL EF LLC

Permits

Max Depth

22,000 ft

First Permit

2021-04-29

Latest Activity

2021-04-29

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

✓ 42-013-35585 JUSTIN TOM EFS · SEA EAGLE FORD, LLC

1.0 mi

Carrizo 4,109'Wilcox 4,950'Navarro 7,896'Olmos 8,313'Anacacho 9,938'Austin Chalk 10,227'Bartosh —Queen City —Reklaw —Escondido —

✓ 42-013-35584 JUSTIN TOM EFS · SEA EAGLE FORD, LLC

1.0 mi

Carrizo 4,079'Wilcox 5,279'Navarro 8,129'Olmos 8,667'Anacacho 10,299'Austin Chalk 10,596'Bartosh —Escondido —Queen City —Reklaw —

✓ 42-013-35743 JUSTIN TOM 01 · SEA EAGLE FORD, LLC

1.2 mi

Carrizo 4,950'Navarro 8,039'Olmos 8,712'Anacacho 10,234'Austin Chalk 10,761'Bartosh —Reklaw —Escondido —Wilcox —Queen City —

✓ 42-013-35742 JUSTIN TOM 01 · SEA EAGLE FORD, LLC

1.2 mi

Carrizo 4,950'Navarro 8,356'Olmos 9,002'Anacacho 10,493'Austin Chalk 10,686'Wilcox —Reklaw —Escondido —Bartosh —Queen City —

✓ 42-013-35049 GUAJILLO EAST · MARATHON OIL EF LLC

1.3 mi

Queen City 2,890'Reklaw 3,252'Bartosh 3,651'Carrizo 3,892'Wilcox 5,180'Navarro 8,842'Olmos 9,178'Anacacho 10,667'Austin Chalk 10,875'Escondido —

✓ 42-013-35050 GUAJILLO EAST · MARATHON OIL EF LLC

1.3 mi

Queen City 2,890'Reklaw 3,252'Bartosh 3,651'Carrizo 3,892'Wilcox 5,182'Navarro 8,842'Olmos 9,178'Anacacho 10,665'Austin Chalk 10,879'Escondido —

✓ 42-013-35051 GUAJILLO EAST · MARATHON OIL EF LLC

1.3 mi

Queen City 2,890'Reklaw 3,252'Bartosh 3,651'Carrizo 3,892'Wilcox 5,180'Navarro 8,842'Olmos 9,178'Anacacho 10,665'Austin Chalk 10,878'Escondido —

✓ 42-013-35052 GUAJILLO EAST · MARATHON OIL EF LLC

1.3 mi

Queen City 2,890'Reklaw 3,252'Bartosh 3,651'Carrizo 3,892'Wilcox 5,180'Wilcox 5,182'Navarro 8,842'Olmos 9,178'Escondido 9,178'Anacacho 10,665'Austin Chalk 10,879'Olmos — +1 more

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)

#869398 Drill

R. MAY B · 22,000 ft

2021-04-29

Applications (1)

#869398 A MARATHON OIL EF LLC

received 2021-04-23

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 28.702207

Lon -98.259409

Well Details

Well Number: 28H
Max Depth: 22,000 ft
Drill Type: Horizontal
County: ATASCOSA
District: 1
Operator: MARATHON OIL EF LLC

Operator

Name: MARATHON OIL EF LLC
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