42-255-31665

Horizontal

TURNBULL UNIT B

KARNES County · District 2 · MARATHON OIL EF LLC

Permits

5

Max Depth

16,854 ft

First Permit

2010-04-14

Latest Activity

2013-08-27

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2010-04

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 (7) Elevation 394 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANACACHO 11,155 ft-10,761 ft
ANACHO11,155 ft-10,761 ft
AUSTIN CHALK 11,323 ft-10,929 ft
UPPER EAGLE FORD (Eagle Ford)11,444 ft-11,050 ft
UPPER EF11,444 ft-11,050 ft
EAGLE FORD 11,485 ft-11,091 ft
EAGLRFORD11,485 ft-11,091 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 ↗

Perforations (1)

IntervalType
11,570–16,673 ftPerforated

Casing (4)

SizeSet DepthCement
9.625"5,904 ft2,390 sx
5.5"10,802 ft2,285 sx
4.5"16,854 ft
4.5"16,854 ft

Permit History (5)

Applications (5)

#766570 A MARATHON OIL EF LLC
received 2013-07-16
#694304 A MARATHON OIL EF LLC
received 2013-03-20
#716596 A HILCORP ENERGY COMPANY
received 2011-05-16
#694304 A HILCORP ENERGY COMPANY
received 2010-08-02
#694304 A HILCORP ENERGY COMPANY
received 2010-04-13

Records & Logs

6 completion filings on record · 2 with log images at RRC.

W-2/G-1 2019-01-25 log on file
W-2/G-1 2011-09-08
W-2/G-1 2011-09-08
W-2/G-1 2011-09-08
W-2/G-1 2010-09-01 log on file
W-2/G-1 2011-04-13

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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in KARNES County.

Well Details

Well Number
2H
Max Depth
16,854 ft
Drill Type
Horizontal
County
KARNES
District
2

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
3,168